@import"https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Noto+Serif+SC:wght@500;600;700&display=swap";@keyframes marching-ants{0%{background-position:0 0,0 100%,0 0,100% 0}to{background-position:20px 0,-20px 100%,0 -20px,100% 20px}}:root{--rc-drag-handle-size:12px;--rc-drag-handle-mobile-size:24px;--rc-drag-handle-bg-colour:#0003;--rc-drag-bar-size:6px;--rc-border-color:#ffffffb3;--rc-focus-color:#08f}.ReactCrop{cursor:crosshair;max-width:100%;display:inline-block;position:relative}.ReactCrop *,.ReactCrop :before,.ReactCrop :after{box-sizing:border-box}.ReactCrop--disabled,.ReactCrop--locked{cursor:inherit}.ReactCrop__child-wrapper{max-height:inherit;overflow:hidden}.ReactCrop__child-wrapper>img,.ReactCrop__child-wrapper>video{max-width:100%;max-height:inherit;display:block}.ReactCrop:not(.ReactCrop--disabled) .ReactCrop__child-wrapper>img,.ReactCrop:not(.ReactCrop--disabled) .ReactCrop__child-wrapper>video,.ReactCrop:not(.ReactCrop--disabled) .ReactCrop__crop-selection{touch-action:none}.ReactCrop__crop-mask{pointer-events:none;width:calc(100% + .5px);height:calc(100% + .5px);position:absolute;top:0;right:0;bottom:0;left:0}.ReactCrop__crop-selection{cursor:move;position:absolute;top:0;left:0;transform:translate(0)}.ReactCrop--disabled .ReactCrop__crop-selection{cursor:inherit}.ReactCrop--circular-crop .ReactCrop__crop-selection{border-radius:50%}.ReactCrop--circular-crop .ReactCrop__crop-selection:after{pointer-events:none;content:"";border:1px solid var(--rc-border-color);opacity:.3;position:absolute;top:-1px;right:-1px;bottom:-1px;left:-1px}.ReactCrop--no-animate .ReactCrop__crop-selection{outline:1px dashed #fff}.ReactCrop__crop-selection:not(.ReactCrop--no-animate .ReactCrop__crop-selection){color:#fff;background-image:linear-gradient(90deg,#fff 50%,#444 50%),linear-gradient(90deg,#fff 50%,#444 50%),linear-gradient(#fff 50%,#444 50%),linear-gradient(#fff 50%,#444 50%);background-position:0 0,0 100%,0 0,100% 0;background-repeat:repeat-x,repeat-x,repeat-y,repeat-y;background-size:10px 1px,10px 1px,1px 10px,1px 10px;animation:1s linear infinite marching-ants}.ReactCrop__crop-selection:focus{outline:2px solid var(--rc-focus-color);outline-offset:-1px}.ReactCrop--invisible-crop .ReactCrop__crop-mask,.ReactCrop--invisible-crop .ReactCrop__crop-selection{display:none}.ReactCrop__rule-of-thirds-vt:before,.ReactCrop__rule-of-thirds-vt:after,.ReactCrop__rule-of-thirds-hz:before,.ReactCrop__rule-of-thirds-hz:after{content:"";background-color:#fff6;display:block;position:absolute}.ReactCrop__rule-of-thirds-vt:before,.ReactCrop__rule-of-thirds-vt:after{width:1px;height:100%}.ReactCrop__rule-of-thirds-vt:before{left:33.3333%}.ReactCrop__rule-of-thirds-vt:after{left:66.6667%}.ReactCrop__rule-of-thirds-hz:before,.ReactCrop__rule-of-thirds-hz:after{width:100%;height:1px}.ReactCrop__rule-of-thirds-hz:before{top:33.3333%}.ReactCrop__rule-of-thirds-hz:after{top:66.6667%}.ReactCrop__drag-handle{width:var(--rc-drag-handle-size);height:var(--rc-drag-handle-size);background-color:var(--rc-drag-handle-bg-colour);border:1px solid var(--rc-border-color);position:absolute}.ReactCrop__drag-handle:focus{background:var(--rc-focus-color)}.ReactCrop .ord-nw{cursor:nw-resize;top:0;left:0;transform:translate(-50%,-50%)}.ReactCrop .ord-n{cursor:n-resize;top:0;left:50%;transform:translate(-50%,-50%)}.ReactCrop .ord-ne{cursor:ne-resize;top:0;right:0;transform:translate(50%,-50%)}.ReactCrop .ord-e{cursor:e-resize;top:50%;right:0;transform:translate(50%,-50%)}.ReactCrop .ord-se{cursor:se-resize;bottom:0;right:0;transform:translate(50%,50%)}.ReactCrop .ord-s{cursor:s-resize;bottom:0;left:50%;transform:translate(-50%,50%)}.ReactCrop .ord-sw{cursor:sw-resize;bottom:0;left:0;transform:translate(-50%,50%)}.ReactCrop .ord-w{cursor:w-resize;top:50%;left:0;transform:translate(-50%,-50%)}.ReactCrop__disabled .ReactCrop__drag-handle{cursor:inherit}.ReactCrop__drag-bar{position:absolute}.ReactCrop__drag-bar.ord-n{width:100%;height:var(--rc-drag-bar-size);top:0;left:0;transform:translateY(-50%)}.ReactCrop__drag-bar.ord-e{width:var(--rc-drag-bar-size);height:100%;top:0;right:0;transform:translate(50%)}.ReactCrop__drag-bar.ord-s{width:100%;height:var(--rc-drag-bar-size);bottom:0;left:0;transform:translateY(50%)}.ReactCrop__drag-bar.ord-w{width:var(--rc-drag-bar-size);height:100%;top:0;left:0;transform:translate(-50%)}.ReactCrop--new-crop .ReactCrop__drag-bar,.ReactCrop--new-crop .ReactCrop__drag-handle,.ReactCrop--fixed-aspect .ReactCrop__drag-bar,.ReactCrop--fixed-aspect .ReactCrop__drag-handle.ord-n,.ReactCrop--fixed-aspect .ReactCrop__drag-handle.ord-e,.ReactCrop--fixed-aspect .ReactCrop__drag-handle.ord-s,.ReactCrop--fixed-aspect .ReactCrop__drag-handle.ord-w{display:none}@media (pointer:coarse){.ReactCrop .ord-n,.ReactCrop .ord-e,.ReactCrop .ord-s,.ReactCrop .ord-w{display:none}.ReactCrop__drag-handle{width:var(--rc-drag-handle-mobile-size);height:var(--rc-drag-handle-mobile-size)}}.mistake-meta-fields{display:grid;grid-template-columns:1fr 1fr;gap:10px}.mistake-meta-fields label{display:grid;gap:7px;font-size:12px;font-weight:700}.mistake-meta-fields select{width:100%;min-height:45px;padding:11px 12px;border:1px solid #dce5dc;border-radius:10px;background:#fff;color:var(--ink);font:400 13px/1.5 DM Sans,PingFang SC,sans-serif}.mistake-detail-tags{margin:-8px 0 13px;color:var(--muted);font-size:11px}.question-sheet-editor{position:fixed;z-index:70;top:0;right:0;bottom:0;left:0;width:100%;max-width:100vw;min-width:0;display:flex;flex-direction:column;overflow:hidden;background:#f2f3f1;padding-top:env(safe-area-inset-top)}.question-sheet-source{display:none}.question-sheet-header{min-height:60px;display:flex;align-items:center;gap:12px;padding:0 14px;background:#fff}.question-sheet-header>div:nth-child(2){min-width:0;flex:1}.question-sheet-header strong,.question-sheet-header small{display:block}.question-sheet-header strong{font-size:16px}.question-sheet-header small{margin-top:3px;color:var(--muted);font-size:10px}.sheet-head-actions{display:flex;align-items:center;gap:8px}.sheet-view-toggle,.sheet-icon-action{height:36px;display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:0 11px;border:1px solid var(--line);border-radius:9px;background:#fff;color:#3d584b;font-size:11px;font-weight:650}.sheet-icon-action{position:relative;width:38px;padding:0}.sheet-icon-action input{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;opacity:0}.question-sheet-banner{padding:10px 14px;background:#e7f0ff;color:#285b91;font-size:11px;text-align:center}.question-sheet-notice{display:flex;align-items:center;justify-content:center;gap:7px;padding:9px 12px;color:#536b5d;font-size:11px;text-align:center}.question-sheet-error{padding:8px 14px;text-align:center}.question-sheet-stage{position:relative;width:100%;min-width:0;min-height:0;flex:1;display:grid;grid-template-columns:minmax(0,1fr);place-items:center;overflow-x:hidden;overflow-y:auto;padding:12px;background:#333b38;overscroll-behavior:contain}.question-sheet-loading{position:absolute;z-index:4;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;background:#171d1bb8;color:#fff;text-align:center}.question-sheet-loading>div{max-width:280px;display:grid;justify-items:center;gap:12px;padding:20px}.question-sheet-loading strong{font-size:14px}.question-sheet-loading small{color:#e3e8e5;font-size:11px;line-height:1.6}.question-sheet-image{position:relative;flex:none;width:min(100%,var(--sheet-image-width,100%));max-width:100%;max-height:100%;touch-action:none;-webkit-user-select:none;user-select:none}.question-sheet-image>img{display:block;width:100%;height:100%;object-fit:fill;pointer-events:none}.question-sheet-image.drawing{cursor:crosshair}.question-region{position:absolute;display:block;border:1.5px solid #8d9290;background:#8b908f18;color:#fff;touch-action:none;cursor:grab}.question-region.selected{border-color:#247bdd;background:#287eea3b}.question-region.saved{border-color:#2e916c;background:#2e916c42;cursor:default}.question-region-label{position:absolute;top:3px;left:3px;min-width:20px;height:20px;display:grid;place-items:center;border-radius:6px;background:#3d4644cc;color:#fff;font-size:11px;font-weight:700}.question-region.selected .question-region-label{background:#176ed5}.question-region.saved .question-region-label{background:#197951}.region-actions{position:absolute;z-index:2;top:-1px;right:-1px;display:flex;gap:2px}.region-delete,.region-resize{position:static;width:28px;height:28px;display:grid;place-items:center;border:0;color:#fff}.region-delete{border-radius:0 6px;background:#b54c3d;touch-action:manipulation}.region-resize{border-radius:0 6px;background:#176ed5;touch-action:none}.question-region.draft{position:absolute;border:2px dashed #ffce62;background:#ffc44332;pointer-events:none}.question-sheet-footer{padding:12px 14px calc(10px + env(safe-area-inset-bottom));background:#fff}.sheet-select-row{display:flex;align-items:center;justify-content:space-between;min-height:32px;font-size:12px}.sheet-select-row button{padding:7px 0;border:0;background:none;color:#266fc2;font-size:11px}.sheet-tools-row{display:grid;grid-template-columns:1fr 1fr 1.5fr;gap:8px;margin-top:9px}.sheet-tools-row>button{min-width:0;min-height:48px;display:flex;align-items:center;justify-content:center;gap:6px;padding:5px;border:1px solid var(--line);border-radius:10px;background:#fff;color:#3f4c47;font-size:10px}.sheet-tools-row>button.active{border-color:#78a8dc;background:#edf5ff;color:#246ab5}.sheet-tools-row>.sheet-save-button{border:0;background:#1776df;color:#fff;font-size:12px;font-weight:700}.sheet-save-button svg{transform:rotate(180deg)}.sheet-tools-row button:focus-visible,.question-region:focus-visible,.region-delete:focus-visible,.region-resize:focus-visible{outline:3px solid #ffbf44;outline-offset:2px}.question-meta-backdrop{position:fixed;z-index:2;top:0;right:0;bottom:0;left:0;width:100%;max-width:100vw;display:flex;align-items:flex-end;justify-content:center;overflow:hidden;background:#10171470}.question-meta-sheet{width:min(100%,560px);min-width:0;max-height:min(88dvh,780px);overflow-x:hidden;overflow-y:auto;padding:10px 18px calc(18px + env(safe-area-inset-bottom));border-radius:18px 18px 0 0;background:var(--paper);box-shadow:0 -12px 40px #203d3726}.question-meta-sheet .sheet-heading{margin-bottom:17px}.question-meta-fields{display:grid;grid-template-columns:1fr 1fr;gap:12px}.question-meta-fields label,.question-meta-item label{display:grid;gap:7px;font-size:11px;font-weight:700}.question-meta-fields select,.question-meta-item input,.question-meta-item textarea{width:100%;min-height:44px;padding:10px 11px;border:1px solid #dce5dc;border-radius:9px;background:#fff;color:var(--ink);font:12px/1.5 DM Sans,PingFang SC,sans-serif}.question-meta-fields .subject-field{grid-column:1/-1}.question-meta-list{display:grid;gap:8px;max-height:32dvh;overflow:auto;margin:16px 0}.question-meta-item{padding:10px 11px;border:1px solid var(--line);border-radius:9px;background:#fff}.question-meta-item summary{display:flex;justify-content:space-between;gap:12px;min-height:28px;align-items:center;font-size:11px;font-weight:700;cursor:pointer}.question-meta-item summary span:last-child{color:var(--muted);font-weight:500}.question-meta-hint{margin:12px 0;color:var(--muted);font-size:12px;line-height:1.6}.question-meta-item label{margin-top:10px}.question-meta-item textarea{resize:vertical}.question-crop-preview{display:grid;gap:7px;margin-top:10px;padding:9px;border:1px solid var(--line);border-radius:7px;background:#f7f8f4}.question-crop-preview>strong{font-size:11px}.question-crop-preview>div{display:flex;gap:8px;overflow-x:auto}.question-crop-preview img{max-width:100%;max-height:190px;object-fit:contain;border:1px solid var(--line);background:#fff}.question-ocr-status{display:flex;align-items:center;gap:6px;margin:8px 0 0;color:#486d54;font-size:11px}.question-ocr-status.failed{justify-content:space-between;color:#9b5144}.question-ocr-status button{border:0;background:none;color:#2c7558;font:inherit;font-weight:700}.question-ocr-preview{margin-top:9px;padding:10px;border-left:3px solid #7aa27b;background:#f4f8f1;color:#31493b;font-size:12px;line-height:1.7;overflow-wrap:anywhere}.question-ocr-preview>strong{display:block;margin-bottom:5px;font-size:10px;color:#748173}.question-ocr-preview .chat-markdown p{margin:4px 0;white-space:pre-wrap}.detail-question-text .chat-markdown p{margin:0;white-space:pre-wrap}.paper-question-content .chat-markdown p{margin:12px 0;white-space:pre-wrap;line-height:1.8}.question-meta-item>.danger-text{display:flex;align-items:center;gap:5px;margin-top:9px;padding:4px 0;border:0;background:none;color:#a84337;font-size:10px}.question-save-error{color:#a84337;font-size:10px}.question-save-count{display:flex;align-items:center;gap:6px;margin:6px 0;color:#267454;font-size:11px}.question-submit{min-height:48px;justify-content:center;gap:8px}.question-privacy-note{margin:9px 0 0;color:var(--muted);font-size:9px;text-align:center}.spin{animation:question-spin 1s linear infinite}@keyframes question-spin{to{transform:rotate(360deg)}}@media (max-width:380px){.sheet-tools-row{grid-template-columns:1fr 1fr}.sheet-tools-row>.sheet-save-button{grid-column:1/-1}.question-meta-fields{gap:8px}}:root{font-family:DM Sans,PingFang SC,Noto Sans SC,sans-serif;color:#203d37;background:#edf2ea;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;font-optical-sizing:auto;font-weight:400;--ink:#203d37;--muted:#718078;--line:#e3e9df;--green:#167d70;--paper:#f7faf5}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}button{font:inherit;color:inherit}.shell{position:relative;width:min(100%,480px);min-height:100dvh;margin:auto;padding:env(safe-area-inset-top) 22px calc(92px + env(safe-area-inset-bottom));background:var(--paper);box-shadow:0 20px 60px #304f381a}.topbar{height:72px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #e4e9e4}.brand{display:flex;align-items:center;gap:10px}.brand-mark{width:36px;height:36px;display:grid;place-items:center;background:var(--green);color:#fff;border-radius:13px;font:700 19px "Noto Serif SC",serif}.brand strong,.brand small{display:block}.brand strong{font:700 19px "Noto Serif SC",serif}.brand small{margin-top:2px;font-size:10px;color:var(--muted)}.service-state{display:flex;align-items:center;gap:6px;font-size:10px;color:var(--muted)}.service-state i,.assistant-status span{width:7px;height:7px;border-radius:50%;background:#d4a04c}.service-state.ready i{background:#3c9b6a}.service-state.unavailable i{background:#bd6f59}.welcome{padding-top:28px}.eyebrow{margin:0 0 12px;color:var(--green);font-size:10px;font-weight:700;letter-spacing:1px}.welcome h1{margin:0;font:700 29px/1.38 "Noto Serif SC",Songti SC,serif}.welcome h1 em{color:var(--green);font-style:normal}.intro{margin:9px 0 0;color:var(--muted);font-size:12px}.review-band{position:relative;overflow:hidden;display:flex;justify-content:space-between;align-items:center;margin-top:24px;padding:17px;border-radius:19px;background:#e9f1df}.review-band .label{font-size:11px;font-weight:650;color:#48675d}.count{display:block;margin-top:7px;font:700 31px/1.15 "Noto Serif SC",serif}.count small{font:500 12px DM Sans,sans-serif}.review-band p{margin:5px 0 12px;color:#587269;font-size:10px}.primary{height:35px;padding:0 11px;display:flex;gap:7px;align-items:center;border:0;border-radius:9px;background:var(--green);color:#fff;font-size:11px;font-weight:700}.primary:disabled{opacity:.48}.review-art{position:relative;z-index:1;width:68px;height:68px;display:grid;place-items:center;border:1px solid #b9d3b8;border-radius:50%;color:#417967;transform:rotate(-8deg)}.review-art span{position:absolute;right:-5px;bottom:0;padding:3px 6px;border-radius:7px;background:#fbf0d0;color:#8b7041;font-size:9px;font-weight:700}.section-heading{display:flex;align-items:baseline;justify-content:space-between;margin:25px 0 11px}.section-heading h2{margin:0;font-size:15px;font-weight:750}.section-heading>span{font-size:10px;color:var(--muted)}.actions{display:grid;gap:9px}.action{width:100%;min-height:67px;display:flex;align-items:center;gap:11px;padding:10px 12px;border:1px solid var(--line);border-radius:13px;background:#fff;text-align:left}.action:disabled{opacity:.64}.action-icon{width:37px;height:37px;display:grid;place-items:center;border-radius:10px;color:#57819b;background:#eaf3fb}.action-material .action-icon{color:#9b7937;background:#fbf0d0}.action strong,.action small{display:block}.action strong{font-size:12px}.action small{margin-top:4px;color:var(--muted);font-size:10px}.arrow{margin-left:auto;color:#98a59f}.assistant{position:relative;display:flex;align-items:center;gap:10px;margin-top:15px;padding:13px;border:1px solid #d8e7de;border-radius:14px;background:#f4f9f3}.assistant-icon{width:34px;height:34px;display:grid;place-items:center;border-radius:11px;background:#e2edda;color:#4d8060}.assistant-copy{min-width:0}.assistant-copy strong,.assistant-copy small{display:block}.assistant-copy strong{font-size:12px}.assistant-copy small{margin-top:3px;color:var(--muted);font-size:9px}.help{margin-left:auto;width:30px;height:30px;display:grid;place-items:center;border:0;background:transparent;color:#74867c}.assistant-status{position:absolute;left:58px;top:61px;display:flex;align-items:center;gap:5px;color:#718078;font-size:9px}.assistant-status span{width:6px;height:6px}.recent{margin-top:25px}.recent .section-heading{margin:0 0 10px}.view-all{display:flex;align-items:center;border:0;background:none;color:var(--green);font-size:10px}.view-all:disabled{opacity:.5}.empty-state{display:flex;align-items:center;gap:10px;padding:13px 0;border-top:1px solid var(--line)}.empty-icon{width:31px;height:31px;display:grid;place-items:center;border-radius:9px;background:#e3f3eb;color:var(--green)}.empty-state strong,.empty-state small{display:block}.empty-state strong{font-size:11px}.empty-state small{margin-top:4px;color:var(--muted);font-size:9px}.bottom-nav{position:fixed;z-index:3;bottom:0;left:50%;transform:translate(-50%);width:min(100%,480px);height:calc(68px + env(safe-area-inset-bottom));padding:8px 14px env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);background:#ffffffed;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.bottom-nav button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;border:0;background:none;color:#89968f;font-size:9px}.bottom-nav button.active{color:var(--green);font-weight:700}.bottom-nav button:disabled{opacity:.5}.network-alert{position:sticky;z-index:5;top:0;margin:0 -22px;padding:10px 22px;display:flex;justify-content:center;gap:7px;background:#fcece2;color:#9e5b45;font-size:11px}@media (min-width:700px){.shell{margin:24px auto;min-height:calc(100vh - 48px);border-radius:20px;overflow:hidden}.bottom-nav{position:absolute;bottom:0;border-radius:0 0 20px 20px}}.family-screen{max-width:760px}.parent-tabs{position:sticky;top:0;z-index:2;display:grid;grid-template-columns:1fr 1fr;margin:16px 0 20px;border-bottom:1px solid var(--line);background:var(--paper)}.parent-tabs button{position:relative;min-height:44px;border:0;background:transparent;color:var(--muted);font-size:13px;font-weight:650}.parent-tabs button.active{color:var(--green)}.parent-tabs button.active:after{position:absolute;right:18%;bottom:-1px;left:18%;height:3px;border-radius:3px 3px 0 0;background:var(--green);content:""}.overview-toolbar{display:grid;grid-template-columns:auto minmax(0,1fr) 38px;align-items:center;gap:10px;margin:5px 0 16px}.overview-toolbar label{font-size:12px;font-weight:700}.overview-toolbar select{width:100%;min-width:0;height:40px;padding:0 10px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);font:inherit;font-size:12px}.overview-toolbar .icon-button{width:38px;height:38px;border-radius:9px}.overview-toolbar button:disabled{opacity:.5}.overview-loading{padding:35px 12px;color:var(--muted);font-size:12px;text-align:center}.parent-empty{display:grid;justify-items:center;gap:8px;padding:38px 10px;text-align:center}.parent-empty .primary{align-items:center}.parent-management>.section-heading{align-items:center}.parent-management>.section-heading>div{display:grid;gap:5px}.parent-management>.section-heading h2{font-size:15px}.parent-management>.section-heading span{color:var(--muted);font-size:10px}.parent-management>.section-heading .primary{align-items:center;white-space:nowrap}.family-create-sheet{max-height:min(88dvh,760px);overflow-y:auto;padding-bottom:calc(24px + env(safe-area-inset-bottom))}.family-create-sheet .segmented-control{margin:15px 0}.family-create-sheet .family-form{gap:12px}.family-section{margin-top:30px}.family-form{max-width:520px}.family-form .primary{align-self:flex-start}.family-student{border-bottom:1px solid var(--line, #e4e6e3)}.family-enter{display:flex;align-items:center;gap:12px;width:100%;padding:14px 4px 10px;border:0;background:transparent;color:inherit;text-align:left}.family-enter .record-copy{flex:1}.family-actions{display:flex;flex-wrap:wrap;gap:6px;padding:0 0 12px 54px}.family-actions button,.family-back,.family-switch{font-size:13px}.family-actions button{border:0;background:transparent;color:var(--muted, #63706a);padding:5px 7px}.family-actions .danger-text{color:#a4372d}.family-notice,.family-inline-notice{margin:18px 0;padding:14px 16px;border-left:3px solid #5d8b72;background:#edf5ef;color:#284d38}.family-notice p{margin:7px 0 12px;font-size:14px;line-height:1.6}.family-inline-notice{font-size:13px}.binding-code{display:grid;gap:4px;margin-top:12px}.binding-code code{font-size:20px;letter-spacing:0;color:#204d37}.binding-code small{color:#52675b}.family-switch{white-space:nowrap}.modified-meta{margin:7px 0 16px;color:var(--muted);font-size:11px}.parent-mode .assistant-launch,.parent-mode .chat-composer,.parent-mode .answer-actions,.parent-mode .floating-chat,.parent-mode .rating-grid,.parent-mode .skip-button,.parent-mode .review-band .primary,.parent-mode.page-chats .add-button{display:none}.binding-preview-name{margin:18px 0 6px;font-size:18px;font-weight:700;color:var(--ink)}.recovery-form{margin-top:12px}.recovery-code-value{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:18px 0;padding:13px;border:1px solid var(--line);border-radius:9px;background:#fff}.recovery-code-value code{min-width:0;overflow-wrap:anywhere;color:var(--ink);font:700 17px/1.5 ui-monospace,monospace}.recovery-code-value button{width:40px;height:40px;flex:none;display:grid;place-items:center;padding:0}.recovery-done{justify-content:center}.paper-create-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:14px 0;padding:0;border:0;background:transparent}.paper-create-bar label{display:grid;gap:4px;color:var(--muted);font-size:10px;font-weight:650}.paper-create-bar select{min-height:40px;min-width:104px;padding:0 11px;border:1px solid #dce5dc;border-radius:9px;background:#fff;color:var(--ink);font:600 12px DM Sans,PingFang SC,sans-serif}.paper-create-button{min-height:42px;display:flex;align-items:center;justify-content:center;gap:8px;padding:0 13px;border:1px solid #cddfd1;border-radius:10px;background:#e8f2e9;color:#256b51;font-size:11px;font-weight:700;transition:background .15s,border-color .15s,transform .15s}.paper-create-button:hover:not(:disabled){border-color:#a8c8ae;background:#dcecdf}.paper-create-button:active:not(:disabled){transform:translateY(1px)}.paper-create-button:disabled{opacity:.48}.detail-study-actions{display:flex;align-items:center;gap:10px;margin:14px 0;color:var(--muted);font-size:10px}.detail-study-actions button{display:inline-flex;align-items:center;gap:6px;white-space:nowrap}.variant-sheet{max-height:min(86dvh,760px);overflow-y:auto;scrollbar-width:none;-ms-overflow-style:none}.variant-sheet::-webkit-scrollbar{display:none}.variant-question{margin:12px 0;padding:15px;border:1px solid #e7dfbd;border-radius:12px;background:#fffaf0}.variant-question p{margin:0;color:var(--ink);line-height:1.8}.variant-regenerate{display:flex;align-items:center;gap:6px;margin:12px auto 0;padding:7px;border:0;background:none;color:var(--muted);font-size:11px;cursor:pointer}.variant-regenerate:hover{color:var(--green)}.variant-saved-note{margin:10px 0 0;color:var(--muted);font-size:11px;line-height:1.5;text-align:center}.variant-explain-button{width:100%;min-height:40px;display:flex;align-items:center;justify-content:center;gap:7px;margin:12px 0 2px;border:1px dashed #b8cec0;border-radius:9px;background:#f8fbf7;color:var(--green);font-size:12px;font-weight:700}.variant-explain-button:disabled{opacity:.5}.variant-answer-capture{margin-top:14px}.variant-answer-capture h3{margin:0 0 8px;color:#456b53;font:700 12px/1.4 "Noto Serif SC",Songti SC,serif}.variant-answer-capture textarea{width:100%;min-height:84px;padding:10px 11px;border:1px solid #dce5dc;border-radius:9px;background:#fff;color:var(--ink);font:12px/1.5 DM Sans,PingFang SC,sans-serif;resize:vertical;box-sizing:border-box}.variant-answer-capture textarea:focus{outline:3px solid #167d7025;border-color:#6ea99b}.variant-result-prompt{display:flex;align-items:baseline;justify-content:space-between;gap:8px;margin:16px 0 0}.variant-result-prompt strong{color:#456b53;font:700 12px/1.4 "Noto Serif SC",Songti SC,serif}.variant-result-prompt span{color:var(--muted);font-size:10px}.variant-result-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:8px}.variant-result-grid button{min-height:72px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:6px;border:1px solid var(--line);border-radius:11px;background:#fff;color:var(--ink)}.variant-result-grid button:first-child{color:#367554;background:#eff8f1}.variant-result-grid button:nth-child(2){color:#a67835;background:#fff8e9}.variant-result-grid button:nth-child(3){color:#a75543;background:#fff1ed}.variant-result-grid button.selected{outline:2px solid currentColor;outline-offset:1px;border-color:currentColor}.variant-result-grid strong{font-size:12px}.variant-result-grid small{font-size:9px;color:var(--muted)}.variant-explanation{margin-top:12px}.variant-save-button{margin-top:14px}.variant-primary{width:100%;min-width:0;min-height:48px;height:auto;display:flex;align-items:center;justify-content:center;gap:8px;padding:12px 16px;white-space:normal;text-align:center}.variant-primary svg{flex:none}.variant-primary span{min-width:0;line-height:1.45}.paper-preview-screen{max-width:760px}.paper-preview-toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:20px}.paper-preview-toolbar .primary{margin-left:auto}.paper-title{padding:24px 0 18px;border-bottom:2px solid var(--ink);text-align:center}.paper-title h1{margin:4px 0 8px;font:700 26px "Noto Serif SC",serif}.paper-title p{margin:4px 0;color:var(--muted);font-size:12px}.paper-title div{display:flex;justify-content:space-between;margin-top:18px;color:var(--ink);font-size:12px}.paper-question{padding:19px 0;border-bottom:1px solid #dfe6df;break-inside:avoid}.paper-question-heading{display:flex;align-items:flex-start;gap:9px;font-size:14px;line-height:1.7}.paper-question-heading>span{flex:1;white-space:pre-wrap}.paper-order{display:flex;gap:3px}.paper-order button{width:26px;height:26px;display:grid;place-items:center;border:1px solid var(--line);border-radius:6px;background:#fff}.paper-order button:disabled{opacity:.35}.paper-question-images{display:grid;gap:9px;margin-top:12px}.paper-question-images img{display:block;width:100%;max-height:520px;object-fit:contain;border:1px solid #e6ebe4;border-radius:6px}.paper-question>p{margin:12px 0;white-space:pre-wrap;line-height:1.8}.paper-answer-lines{height:70px;margin-top:15px;border-bottom:1px dashed #b9c5ba;background:repeating-linear-gradient(to bottom,transparent 0 29px,#dce5dc 30px)}.paper-add-questions{margin-top:24px;padding-top:12px;border-top:1px solid var(--line)}.paper-add-questions h2{font-size:12px}.paper-add-questions button{width:100%;display:flex;align-items:center;gap:8px;padding:10px 0;border:0;border-bottom:1px solid var(--line);background:none;color:var(--green);text-align:left;font-size:11px}.paper-add-questions button span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}@media print{body{background:#fff}.shell{width:100%;max-width:none;min-height:0;padding:0;box-shadow:none}.no-print,.topbar,.bottom-nav{display:none!important}.paper-preview-screen{max-width:none;padding:0 24px}.paper-title{padding-top:0}.paper-question-images img{max-height:none;border:0}.paper-answer-lines{height:90px}}@media (max-width: 520px){.family-actions{padding-left:0}.top-actions .family-switch{padding:7px 9px}}.variant-diagram{margin:16px 0 0;text-align:center}.variant-diagram svg{display:block;width:100%;max-width:400px;height:auto;margin:auto;background:#fff;border-radius:8px}.variant-diagram figcaption{margin-top:8px;font-size:12px;color:var(--muted)}.paper-image-error{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px;border:1px dashed var(--line);border-radius:6px;font-size:13px;line-height:1.6}.paper-image-error button{flex-shrink:0;padding:6px 10px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--ink)}.correction-panel form{margin-top:14px}.correction-panel fieldset{display:grid;gap:14px;margin:0;padding:0;border:0;min-width:0}.correction-panel label,.correction-filter{display:grid;gap:7px;font-size:13px}.correction-panel textarea,.correction-panel input:not([type=checkbox]),.correction-filter select{box-sizing:border-box;width:100%;padding:10px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);font:inherit}.correction-panel .correction-confirm{display:flex;align-items:flex-start;line-height:1.6}.correction-confirm input{flex-shrink:0;margin-top:4px}.correction-panel>.secondary{margin-top:12px}.correction-note{white-space:pre-wrap;line-height:1.7}.correction-filter{margin:12px 0}.welcome-date{margin:0 0 7px;color:#8a9b8d;font-size:10px;font-weight:650;letter-spacing:1.6px}.welcome-date:before{content:"";display:inline-block;width:4px;height:4px;border-radius:50%;background:#8fbf9d;margin-right:7px;vertical-align:1.5px}.welcome .intro{color:#6f8576}.question-sheet-zoom{position:absolute;right:14px;bottom:14px;z-index:4;display:flex;align-items:center;gap:3px;padding:4px;border-radius:11px;background:#171d1bb8;color:#fff}.question-sheet-zoom button{width:30px;height:30px;display:grid;place-items:center;border:0;border-radius:8px;background:transparent;color:#fff;cursor:pointer}.question-sheet-zoom button:disabled{opacity:.4}.question-sheet-zoom span{min-width:36px;text-align:center;font-size:10px;font-variant-numeric:tabular-nums}.question-crop-overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:3;pointer-events:none}.question-crop-shade{position:absolute;pointer-events:none;background:#14231e99}.question-crop-box{position:absolute;pointer-events:auto;cursor:move;border:1.5px solid #fff;box-shadow:0 0 0 1.5px #176ed5,0 0 12px #0006;touch-action:none}.question-crop-handle{position:absolute;width:15px;height:15px;border:2px solid #fff;border-radius:3px;background:#176ed5;box-shadow:0 0 5px #0009;touch-action:none}.question-crop-handle.nw{left:-9px;top:-9px;cursor:nwse-resize}.question-crop-handle.ne{right:-9px;top:-9px;cursor:nesw-resize}.question-crop-handle.sw{left:-9px;bottom:-9px;cursor:nesw-resize}.question-crop-handle.se{right:-9px;bottom:-9px;cursor:nwse-resize}.question-crop-actions{position:absolute;right:12px;top:10px;z-index:4;display:flex;gap:8px}.question-crop-actions button{min-height:32px;padding:0 13px;border:0;border-radius:9px;background:#fff;color:#3f4c47;font-size:11px;font-weight:700}.question-crop-actions .primary{background:#1776df;color:#fff}.region-edit{position:static;width:26px;height:26px;display:grid;place-items:center;border:0;border-radius:7px;background:#176ed5;color:#fff;opacity:.55;transition:opacity .15s;touch-action:manipulation}.region-edit:hover{opacity:1}.region-edit:focus-visible{outline:2px solid #fff;outline-offset:1px}.question-region-editor-hint{position:absolute;left:50%;top:10px;transform:translate(-50%);z-index:5;padding:5px 12px;border-radius:100px;background:#171d1bd9;color:#fff;font-size:10px;pointer-events:none;white-space:nowrap}.question-region-editor-bar{position:absolute;left:50%;bottom:14px;transform:translate(-50%);z-index:5;display:flex;align-items:center;gap:8px;padding:6px;border-radius:12px;background:#171d1bd9;color:#fff}.question-region-editor-bar button{min-height:34px;padding:0 15px;border:0;border-radius:9px;font-size:12px;font-weight:700;cursor:pointer}.question-region-editor-bar .edit-cancel{background:#fff2;color:#fff}.question-region-editor-bar .edit-delete{background:#c0392b;color:#fff}.question-region-editor-bar .edit-next{background:#1776df;color:#fff}.question-region-editor-bar button:disabled{opacity:.5}.question-region-add{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:24px;height:24px;display:grid;place-items:center;border:0;border-radius:50%;background:#1776dfb8;color:#fff;opacity:.9;transition:opacity .15s,background .15s;box-shadow:0 1px 4px #000a;touch-action:manipulation;z-index:2}.question-region-add:hover{opacity:1;background:#1776df}.question-region-add.selected{background:#1e9e5f;opacity:1}.question-region-add svg{pointer-events:none}.question-region.added{outline-color:#1e9e5f}.top-actions{display:flex;align-items:center;gap:10px}.icon-button{width:34px;height:34px;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;background:#fff;color:#64776e}.auth-shell{position:relative;width:min(100%,480px);min-height:100dvh;margin:auto;padding:env(safe-area-inset-top) 24px 35px;background:var(--paper);box-shadow:0 20px 60px #304f381a}.auth-brand{height:78px;display:flex;align-items:center;gap:10px;border-bottom:1px solid #e4e9e4}.auth-brand strong,.auth-brand small{display:block}.auth-brand strong{font:700 19px "Noto Serif SC",serif}.auth-brand small{margin-top:2px;color:var(--muted);font-size:10px}.auth-content{padding-top:52px}.auth-splash{display:flex;flex-direction:column}.auth-splash-body{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding-bottom:64px;text-align:center}.auth-splash-loader{width:38px;height:38px;border-radius:50%;border:3px solid #dce7d3;border-top-color:#5d8f6b;animation:auth-splash-spin .85s linear infinite}.auth-splash-body h1{margin:18px 0 0;font:600 18px/1.4 "Noto Serif SC",serif;color:#48675d}.auth-splash-body p{margin:6px 0 0;color:var(--muted);font-size:11px}@keyframes auth-splash-spin{to{transform:rotate(360deg)}}.auth-content h1{margin:0;font:700 28px/1.35 "Noto Serif SC",serif}.auth-form{margin-top:30px}.form-stack{display:grid;gap:15px}.form-stack label{display:grid;gap:7px;font-size:12px;font-weight:700}.form-stack input,.form-stack textarea,.form-stack select{width:100%;min-height:45px;padding:11px 12px;border:1px solid #dce5dc;border-radius:10px;background:#fff;color:var(--ink);font:400 13px/1.5 DM Sans,PingFang SC,sans-serif}.form-stack textarea{min-height:auto;resize:vertical}.form-stack input::placeholder,.form-stack textarea::placeholder{color:#a0aaa4}.form-stack input:focus,.form-stack textarea:focus,.form-stack select:focus{outline:3px solid #167d7025;border-color:#6ea99b}.primary-large{height:47px;justify-content:center;margin-top:3px;font-size:13px}.auth-switch{min-height:42px;margin-top:18px;padding:0 14px!important;display:inline-flex;align-items:center;justify-content:center;border:1px solid #d4e1d6!important;border-radius:10px;background:#fff!important;color:#326c52!important;font-size:12px!important;font-weight:700!important;cursor:pointer;transition:background .15s,border-color .15s,transform .15s}.auth-switch:hover{background:#f1f7f1!important;border-color:#a9c6b0!important}.auth-switch:active{transform:translateY(1px)}.auth-switch:focus-visible{outline:3px solid #167d7030;outline-offset:2px}.auth-note{margin-top:36px;padding-top:15px;border-top:1px solid var(--line);color:var(--muted);font-size:10px;line-height:1.6}.form-error{margin:0;color:#a75543;font-size:12px;line-height:1.5}.inline-error{display:flex;justify-content:space-between;gap:10px;margin:12px 0 0;padding:10px 12px;border-radius:9px;background:#fcece2;color:#9e5b45;font-size:11px}.inline-error button{border:0;background:none;color:inherit;font-size:17px}.screen-content{padding:24px 0 28px}.list-title-row{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:18px}.list-title-row .page-subtitle{margin-top:5px}.add-button{height:37px;min-width:94px;justify-content:center;padding:0 10px}.record-list{display:grid}.record{width:100%;min-height:65px;display:flex;align-items:center;gap:11px;padding:10px 0;border:0;border-top:1px solid var(--line);background:transparent;text-align:left}.record-mark{width:35px;height:35px;flex:none;display:grid;place-items:center;border-radius:10px;background:#eaf3fb;color:#57819b;font-size:10px;font-weight:750}.record-copy{min-width:0;flex:1}.record-copy strong,.record-copy small{display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2}.record-copy strong{font-size:11px;line-height:1.45}.record-copy small{margin-top:4px;color:var(--muted);font-size:9px;line-height:1.5;-webkit-line-clamp:2}.empty-panel{display:flex;flex-direction:column;align-items:center;gap:8px;padding:45px 10px;color:var(--ink);text-align:center}.empty-panel .empty-icon{width:40px;height:40px}.empty-panel strong{font-size:12px}.empty-panel small{color:var(--muted);font-size:10px}.backline{margin-bottom:17px}.back-button{display:flex;align-items:center;gap:2px;padding:4px 0;border:0;background:none;color:var(--green);font-size:12px;font-weight:700}.data-form{margin-top:20px}.delete-button{height:42px;border:1px solid #efcfc3;border-radius:10px;background:#fff;color:#a75543;font-size:12px;font-weight:700}.toast{position:fixed;z-index:9;left:50%;bottom:calc(78px + env(safe-area-inset-bottom));transform:translate(-50%);padding:10px 16px;border-radius:9px;background:#203d37;color:#fff;font-size:11px;box-shadow:0 5px 20px #203d3730}.action:not(:disabled){cursor:pointer}.action:not(:disabled):active,.record:active{background:#f6faf6}.view-all{cursor:pointer}.auth-form .primary:disabled,.data-form .primary:disabled{opacity:.5}.screen-content>.eyebrow{margin-top:3px}.mistake-filters{display:grid;grid-template-columns:minmax(0,1fr) 112px;gap:8px;margin-bottom:13px}.search-box{height:40px;min-width:0;display:flex;align-items:center;gap:8px;padding:0 10px;border:1px solid var(--line);border-radius:10px;background:#fff;color:#84928a}.search-box input{width:100%;min-width:0;border:0;outline:0;background:none;color:var(--ink);font:400 11px DM Sans,PingFang SC,sans-serif}.search-box input::placeholder{color:#a0aaa4}.search-box button{width:22px;height:24px;display:grid;place-items:center;border:0;background:none;color:#84928a}.mistake-filters select{width:100%;height:40px;padding:0 8px;border:1px solid var(--line);border-radius:10px;background:#fff;color:#52675d;font-size:10px}.image-field{display:grid;gap:9px}.field-title{font-size:12px;font-weight:700}.image-picker-row{display:flex;gap:8px}.image-picker{position:relative;min-height:38px;display:inline-flex;align-items:center;gap:7px;padding:0 11px;border:1px solid #d6e4d9;border-radius:9px;background:#fff;color:#326c52;font-size:11px;font-weight:700}.image-picker input{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;min-height:0;padding:0;opacity:0;cursor:pointer}.field-hint{color:var(--muted);font-size:10px}.image-previews{display:flex;flex-wrap:wrap;gap:8px}.image-preview{position:relative;width:72px;height:72px;overflow:hidden;border:1px solid var(--line);border-radius:9px;background:#eef3ed}.image-preview img{width:100%;height:100%;object-fit:cover}.image-preview button{position:absolute;top:3px;right:3px;width:22px;height:22px;display:grid;place-items:center;border:0;border-radius:50%;background:#203d37d9;color:#fff}.detail-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:16px}.detail-heading .page-title{min-width:0;overflow-wrap:anywhere}.detail-edit{height:34px;padding:0 12px;border:0;border-radius:9px;background:#e3f3eb;color:var(--green);font-size:11px;font-weight:700}.detail-section{margin-top:13px;padding:14px;border:1px solid var(--line);border-radius:12px;background:#fff}.detail-section h2{margin:0 0 9px;font-size:12px}.detail-section h2 small{margin-left:5px;color:var(--muted);font-size:10px;font-weight:400}.detail-section p{margin:0;color:#42594e;font-size:12px;line-height:1.75;white-space:pre-wrap;overflow-wrap:anywhere}.detail-images{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.detail-images a{display:block;overflow:hidden;border-radius:8px;background:#eef3ed}.detail-images img{display:block;width:100%;aspect-ratio:4/3;object-fit:contain}.method-options{display:grid;gap:10px}.method-option{width:100%;min-height:72px;display:flex;align-items:center;gap:12px;padding:12px;border:1px solid var(--line);border-radius:12px;background:#fff;text-align:left;cursor:pointer;transition:border-color .15s,background .15s,transform .15s}.method-option:active{transform:translateY(1px)}.method-option:hover{border-color:#b6d1c0;background:#fbfdf9}.method-icon{width:42px;height:42px;flex:none;display:grid;place-items:center;border-radius:11px;background:#eaf3fb;color:#57819b}.photo-option .method-icon{background:#e3f3eb;color:var(--green)}.method-option strong,.method-option small{display:block}.method-option strong{font-size:13px}.method-option small{margin-top:5px;color:var(--muted);font-size:10px;line-height:1.4}.method-option .arrow{margin-left:auto}.sheet-backdrop{position:fixed;z-index:20;top:0;right:0;bottom:0;left:0;display:flex;align-items:flex-end;justify-content:center;padding-top:20px;background:#14231e66;animation:sheet-fade .18s ease-out}.method-sheet{width:min(100%,480px);padding:10px 20px calc(22px + env(safe-area-inset-bottom));border-radius:18px 18px 0 0;background:var(--paper);box-shadow:0 -12px 40px #203d3726;animation:sheet-rise .22s ease-out}.sheet-grabber{width:35px;height:4px;margin:0 auto 18px;border-radius:4px;background:#cbd6cc}.sheet-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.sheet-heading .eyebrow{margin:0 0 5px}.sheet-heading h2{margin:0;font:700 20px/1.35 "Noto Serif SC",Songti SC,serif}.sheet-subtitle{margin:8px 0 16px;color:var(--muted);font-size:11px;line-height:1.5}.method-sheet .method-options{padding-bottom:2px}@keyframes sheet-fade{0%{opacity:0}to{opacity:1}}@keyframes sheet-rise{0%{transform:translateY(18px);opacity:.7}to{transform:translateY(0);opacity:1}}.review-progress{margin-left:auto;color:var(--muted);font-size:11px}.review-screen .page-title{margin-bottom:14px}.review-question,.review-solution,.review-meta{margin-top:12px;padding:14px;border:1px solid var(--line);border-radius:12px;background:#fff}.review-question h2,.review-solution h2{margin:0 0 8px;font-size:12px}.review-question p,.review-solution p{margin:0;color:#42594e;font-size:13px;line-height:1.75;white-space:pre-wrap}.review-images{margin-top:12px}.review-images img{width:100%;aspect-ratio:4/3;object-fit:contain;border-radius:9px;background:#eef3ed}.solution-toggle{width:100%;min-height:42px;display:flex;justify-content:center;align-items:center;gap:7px;border:1px dashed #b8cec0;border-radius:9px;background:#f8fbf7;color:var(--green);font-size:12px;font-weight:700}.review-solution small{display:block;margin-top:10px;color:var(--muted);font-size:10px}.rating-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:16px}.rating-grid button{min-height:78px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;border:1px solid var(--line);border-radius:11px;background:#fff;color:var(--ink)}.rating-grid button:first-child{color:#367554;background:#eff8f1}.rating-grid button:nth-child(2){color:#a67835;background:#fff8e9}.rating-grid button:nth-child(3){color:#a75543;background:#fff1ed}.rating-grid button:disabled{opacity:.5}.rating-grid strong{font-size:13px}.rating-grid small{font-size:9px;color:var(--muted)}.skip-button{display:block;margin:15px auto 0;border:0;background:none;color:var(--muted);font-size:11px}.review-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;background:#f4faf5}.review-meta strong{font-size:12px;color:var(--green)}.review-meta span{font-size:10px;color:var(--muted)}.review-history div{display:flex;justify-content:space-between;padding:8px 0;border-top:1px solid var(--line);font-size:10px}.review-history div:first-of-type{border-top:0}.review-history strong{color:var(--green)}.restart-review{width:100%;min-height:40px;margin-top:8px;border:1px solid #b8cec0;border-radius:9px;background:#f8fbf7;color:var(--green);font-size:11px;font-weight:700}.document-upload{display:grid;gap:12px;margin:18px 0 24px}.document-upload>label:not(.document-drop){display:grid;gap:6px;font-size:11px;font-weight:700}.document-upload input:not([type=file]),.document-upload select{width:100%;min-height:42px;padding:9px 11px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--ink);font:inherit}.document-drop{position:relative;min-height:120px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;border:1px dashed #9bb9a5;border-radius:11px;background:#f7fbf7;color:var(--green);text-align:center}.document-drop strong{font-size:12px}.document-drop small{padding:0 12px;color:var(--muted);font-size:9px}.document-drop input{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;opacity:0;cursor:pointer}.selected-files{margin:-4px 0 0;color:var(--muted);font-size:10px;overflow-wrap:anywhere}.document-search{height:40px;display:flex;align-items:center;gap:8px;padding:0 11px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--muted)}.document-search input{width:100%;border:0;outline:0;font:inherit;font-size:11px}.document-list{margin-top:8px}.document-row{width:100%;min-height:76px;display:flex;align-items:center;gap:11px;padding:11px 0;border:0;border-top:1px solid var(--line);background:none;text-align:left;color:var(--ink)}.document-file-icon{width:38px;height:38px;flex:none;display:grid;place-items:center;border-radius:9px;background:#eaf3fb;color:#57819b}.document-row-copy{min-width:0;flex:1}.document-row-copy strong,.document-row-copy small,.document-status{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.document-row-copy strong{font-size:12px}.document-row-copy small{margin-top:4px;color:var(--muted);font-size:9px}.document-status{margin-top:5px;color:#658174;font-size:9px}.status-failed,.status-partial{color:#a75543}.document-delete{margin-left:auto;width:34px;height:34px;display:grid;place-items:center;border:1px solid #ecd9d1;border-radius:50%;background:#fff;color:#a75543}.document-reader{height:min(55dvh,520px);margin-top:14px;overflow:hidden;border:1px solid var(--line);border-radius:9px;background:#e9eeea}.document-reader iframe,.document-reader img{display:block;width:100%;height:100%;border:0;object-fit:contain;background:#e9eeea}.page-stepper{display:flex;align-items:center;justify-content:space-between;margin-top:9px;color:var(--muted);font-size:10px}.page-stepper button{display:flex;align-items:center;gap:2px;padding:7px 0;border:0;background:none;color:var(--green);font-size:10px;font-weight:700}.page-stepper button:disabled{opacity:.35}.ocr-editor{margin-top:14px;padding:13px;border:1px solid var(--line);border-radius:10px;background:#fff}.ocr-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:10px}.ocr-heading strong{font-size:11px}.ocr-heading span{color:var(--muted);font-size:9px}.ocr-editor textarea{width:100%;padding:10px;border:1px solid #dce5dc;border-radius:8px;font:12px/1.65 DM Sans,PingFang SC,sans-serif;resize:vertical}.ocr-editor .secondary{margin-bottom:8px}.organize-button{margin-top:10px;min-height:44px;justify-content:center}.ai-provider-label{margin:16px 0 8px;color:var(--muted);font-size:9px}.ai-state-error{color:#a75543;font-size:10px}.outline-item{padding:10px 0;border-top:1px solid var(--line)}.outline-item>div{display:flex;align-items:center;justify-content:space-between;gap:8px}.outline-item strong{font-size:11px}.outline-item button{border:0;background:none;color:var(--green);font-size:9px}.outline-item p{margin-top:6px!important;font-size:10px!important}.ai-point{padding:8px 0;border-top:1px solid var(--line)}.ai-point small{display:block;margin-top:4px;color:var(--muted);font-size:9px}.assistant-launch{width:100%;min-height:68px;border:1px solid #d8e7de;text-align:left;cursor:pointer}.assistant-launch .assistant-status{position:static;margin-left:auto;white-space:nowrap}.floating-chat{position:fixed;z-index:4;left:50%;bottom:calc(78px + env(safe-area-inset-bottom));transform:translate(-50%);min-height:42px;display:flex;align-items:center;gap:7px;padding:0 16px;border:0;border-radius:22px;background:var(--green);color:#fff;font-size:11px;font-weight:700;box-shadow:0 5px 18px #203d3730;white-space:nowrap}.floating-chat:disabled{opacity:.55}.chat-history-list{display:grid;min-width:0}.chat-history-row{width:100%;min-width:0;min-height:67px;display:flex;align-items:center;gap:9px;padding:10px 0;border:0;border-top:1px solid var(--line);background:none;text-align:left}.chat-history-open{min-width:0;flex:1;display:flex;align-items:center;gap:10px;padding:0;border:0;background:transparent;text-align:left}.chat-history-icon{width:35px;height:35px;flex:none;display:grid;place-items:center;border-radius:10px;background:#e2edda;color:#4d8060}.chat-history-copy{min-width:0;flex:1}.chat-history-copy strong,.chat-history-copy small{display:block;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-history-copy strong{font-size:11px}.chat-history-copy small{margin-top:4px;color:var(--muted);font-size:9px}.chat-list-heading-actions{display:flex;align-items:center;gap:8px}.chat-manage-button,.chat-management>button{min-height:36px;padding:0 10px;border:1px solid var(--line);border-radius:8px;background:#fff;color:#476451;font-size:11px;font-weight:650}.chat-row-delete{width:36px;height:36px;flex:none;display:grid;place-items:center;border:1px solid #ecd9d1;border-radius:9px;background:#fff;color:#a75543}.chat-management{display:flex;align-items:center;gap:9px;margin:4px 0;padding:8px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.chat-management span{flex:1;color:var(--muted);font-size:10px}.chat-management>button.chat-management-delete{display:flex;align-items:center;gap:5px;border-color:#efd5cb;color:#a75543}.chat-management>button:disabled{opacity:.45}.chat-select{width:25px;height:25px;flex:none;display:grid;place-items:center;border:1px solid #b7c5bb;border-radius:7px;background:#fff;color:#fff}.chat-select.checked{border-color:#33865e;background:#33865e}.chat-history-open:focus-visible,.chat-row-delete:focus-visible,.chat-select:focus-visible,.chat-manage-button:focus-visible,.chat-management>button:focus-visible{outline:3px solid #167d7060;outline-offset:2px}.chat-title{margin-bottom:14px}.chat-screen{display:flex;flex-direction:column;min-height:calc(100dvh - 165px);padding-bottom:12px}.chat-messages{flex:1;min-height:220px;display:flex;flex-direction:column;gap:12px;padding:8px 0 16px}.chat-message{display:flex;max-width:92%;min-width:0}.chat-message.user{align-self:flex-end;justify-content:flex-end}.chat-message.assistant{align-self:flex-start}.chat-bubble{max-width:100%;min-width:0;padding:11px 12px;border:1px solid var(--line);border-radius:12px;background:#fff}.chat-message.user .chat-bubble{border-color:#cfe4d6;background:#edf7ef}.chat-bubble p{margin:0;color:#344b40;font-size:12px;line-height:1.75;white-space:pre-wrap;overflow-wrap:anywhere}.message-provider{display:block;margin-top:7px;color:var(--muted);font-size:8px}.message-citations{display:flex;flex-wrap:wrap;gap:5px;margin-top:7px}.message-citations button{padding:4px 7px;border:1px solid #d9e8dd;border-radius:8px;background:#f5faf5;color:var(--green);font-size:9px}.chat-working{align-self:flex-start;color:var(--muted);font-size:10px}.chat-composer{position:sticky;bottom:calc(68px + env(safe-area-inset-bottom));display:flex;align-items:flex-end;gap:8px;padding:9px;border:1px solid var(--line);border-radius:12px;background:#fff}.chat-composer textarea{flex:1;min-height:40px;max-height:130px;padding:8px;border:0;outline:0;resize:vertical;color:var(--ink);font:12px/1.5 DM Sans,PingFang SC,sans-serif}.chat-composer button{width:38px;height:38px;flex:none;display:grid;place-items:center;justify-content:center;padding:0}@media (min-width:700px){.auth-shell{margin:24px auto;min-height:calc(100vh - 48px);border-radius:20px}.auth-content{max-width:390px;margin:0 auto}.auth-brand{max-width:432px;margin:auto}}.chat-compose-row{width:100%;display:flex;align-items:flex-end;gap:7px}.chat-tool{position:relative;width:36px;height:38px;flex:none;display:grid;place-items:center;border:0;border-radius:9px;background:#f0f5f0;color:#567366;cursor:pointer}.chat-tool input{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;opacity:0;cursor:pointer}.chat-tool.recording{background:#fcece2;color:#a75543}.chat-composer{position:relative;flex-direction:column;align-items:stretch}.chat-attachment-tray{display:flex;align-items:center;gap:12px;min-width:0;width:100%;padding:3px 3px 12px;border-bottom:1px solid var(--line);margin-bottom:3px}.chat-image-preview{position:relative;width:88px;height:88px;flex:none;border:1px solid #dfe8df;border-radius:12px;background:#f8fbf7;overflow:hidden}.chat-image-preview>img{display:block;width:100%;height:100%;object-fit:contain}.chat-image-preview>button{position:absolute;right:4px;top:4px;width:26px;height:26px;min-height:0;border:1px solid #ffffffaa;border-radius:50%;background:#263d35cc;color:#fff;box-shadow:0 1px 4px #0002}.chat-attachment-caption{min-width:0;display:grid;gap:5px}.chat-attachment-caption>span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:11px;color:var(--ink)}.chat-attachment-caption>small{color:var(--muted);font-size:10px}.chat-image-preview>button:focus-visible{outline:3px solid #167d70;outline-offset:-3px}.chat-compose-row textarea{min-width:0}.chat-tool{touch-action:none;-webkit-user-select:none;user-select:none}.chat-tool .voice-pulse{position:absolute;top:0;right:0;bottom:0;left:0;border-radius:9px;pointer-events:none;overflow:visible}.chat-tool.recording .voice-pulse:before,.chat-tool.recording .voice-pulse:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;border-radius:9px;border:2px solid #e7a68f;animation:voice-ring 1.2s ease-out infinite}.chat-tool.recording .voice-pulse:after{animation-delay:.6s}@keyframes voice-ring{0%{transform:scale(.72);opacity:.95}to{transform:scale(1.8);opacity:0}}.chat-tool.recording .voice-icon{animation:voice-bounce .9s ease-in-out infinite}@keyframes voice-bounce{0%,to{transform:scale(1)}50%{transform:scale(1.16)}}.voice-hint{position:absolute;left:12px;right:12px;bottom:calc(100% + 8px);display:flex;align-items:center;justify-content:center;gap:8px;padding:8px 12px;border-radius:12px;background:#fff8f4;border:1px solid #f4d6ca;color:#a75543;font-size:12px;box-shadow:0 4px 14px #e8c9ba2e;z-index:5;animation:voice-hint-in .16s ease-out}.voice-hint .voice-dot{width:8px;height:8px;flex:none;border-radius:50%;background:#e07b5f;animation:voice-dot 1s ease-in-out infinite}@keyframes voice-dot{0%,to{opacity:.35;transform:scale(.85)}50%{opacity:1;transform:scale(1.25)}}@keyframes voice-hint-in{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}.chat-bubble .chat-attachment{margin-bottom:8px}.save-answer{display:inline-flex;align-items:center;gap:4px;margin-top:8px;padding:4px 0;border:0;background:transparent;color:var(--green);font-size:10px;font-weight:700;cursor:pointer}.save-answer:disabled{opacity:.5}.answer-actions{display:flex;align-items:center;gap:5px;flex-wrap:wrap;margin-top:7px}.answer-actions button{min-height:28px;display:inline-flex;align-items:center;justify-content:center;gap:4px;padding:0 7px;border:1px solid transparent;border-radius:7px;background:transparent;color:#718078;font-size:9px;cursor:pointer}.answer-actions button.selected{border-color:#bfd6c5;background:#eef6ef;color:var(--green)}.answer-actions .regenerate-answer{border-color:var(--line);color:#53685c}.answer-actions .save-answer{min-height:28px;margin:0;padding:0 6px}.answer-actions button:disabled{opacity:.45}.account-actions{display:grid;gap:10px;margin-top:22px}.account-delete .action-icon{background:#fcece2;color:#a75543}.account-screen{padding-bottom:100px}.conflict-sheet h2{margin:0;font-size:18px;line-height:1.4}.conflict-preview{margin:16px 0;padding:12px;border:1px solid var(--line);border-radius:9px;background:#fff}.conflict-preview strong,.conflict-preview small{font-size:10px;color:var(--muted)}.conflict-preview p{max-height:110px;overflow:auto;margin:8px 0;color:var(--ink);font-size:11px;white-space:pre-wrap}.conflict-buttons{display:grid;grid-template-columns:1fr 1fr;gap:8px}.conflict-buttons button{height:auto;min-height:40px;white-space:normal}.answer-editor-sheet h2{margin:0;font-size:18px}.segmented-control{display:flex;gap:4px;margin:13px 0;padding:3px;border-radius:8px;background:#eef3ee}.segmented-control button{flex:1;min-height:34px;border:0;border-radius:6px;background:transparent;color:#68786f;font-size:10px}.segmented-control button.active{background:#fff;color:var(--green);font-weight:700;box-shadow:0 1px 3px #203d3718}.answer-editor-text{width:100%;min-height:190px;padding:11px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--ink);font:12px/1.65 DM Sans,PingFang SC,sans-serif;resize:vertical}.answer-editor-sheet{max-height:90dvh;overflow-y:auto}.answer-editor-sheet .primary{width:100%;justify-content:center}.chat-delete{margin-left:auto;width:36px;height:36px;display:grid;place-items:center;border:1px solid #ecd9d1;border-radius:50%;background:#fff;color:#a75543}.document-upload-submit{width:100%;min-height:46px;height:auto;justify-content:center;font-size:12px}.document-upload-screen .document-drop{min-height:150px}.document-upload-screen .back-button:focus-visible,.document-upload-screen input:focus-visible,.document-upload-screen select:focus-visible,.document-upload-submit:focus-visible,.document-row:focus-visible{outline:3px solid #167d7060;outline-offset:2px}.document-selected-files{display:grid;gap:8px;min-width:0}.document-selected-file{display:flex;align-items:center;gap:10px;min-width:0;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--green)}.document-selected-file span{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ink);font-size:12px}.document-selected-file button{flex:none;min-height:36px;padding:0 8px;border:0;border-radius:6px;background:#eef6f1;color:var(--green);font:inherit;cursor:pointer}.document-selected-file button:last-child{display:grid;place-items:center;width:36px;padding:0;background:#fbf1ee;color:#a75543}.document-selected-file button:focus-visible{outline:3px solid #167d7060;outline-offset:2px}.document-file-lightbox section{width:min(100%,900px);height:min(85dvh,900px)}.document-file-lightbox iframe{width:100%;height:100%;border:0;background:#fff}.document-detail-screen .page-title{overflow-wrap:anywhere}.document-detail-heading{display:flex;align-items:center;justify-content:space-between;min-height:42px;margin-bottom:13px}.document-detail-heading .back-button{padding:0;border:0;background:transparent;color:#44866d;font-size:12px;font-weight:700}.document-detail-heading .document-delete{width:38px;height:38px}.document-detail-title-row{display:flex;align-items:center;gap:12px;min-width:0}.document-detail-icon{width:48px;height:48px;flex:none;display:grid;place-items:center;border-radius:15px;background:#e5f1e6;color:#4f8b70}.document-detail-title-row>div{min-width:0}.document-detail-title-row .page-title{margin:0;color:#334f43;font-size:21px;line-height:1.35;font-weight:800}.document-detail-title-row .page-subtitle{margin:3px 0 0;color:#85938a;font-size:11px;line-height:1.5}.document-detail-title-row .page-subtitle span{padding:0 3px;color:#b8c0b9}.document-tabs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;margin:16px 0 13px;padding:4px;border:0;border-radius:15px;background:#eef2e9}.document-tabs button{min-height:39px;padding:0 8px;border:0;border-radius:12px;background:transparent;color:#78867d;font-size:12px;font-weight:700}.document-tabs button[aria-selected=true]{background:#4d9276;color:#fff;box-shadow:0 3px 9px #39785a25}.document-tabs button[aria-selected=true]:after{display:none}.document-tabs button:focus-visible{outline:3px solid #167d7060;outline-offset:2px}.document-detail-screen .organize-button{width:100%;min-height:44px;margin:0 0 12px}.document-original-panel,.document-ai-panel{padding:14px;border-radius:22px;background:#fffefa;box-shadow:0 4px 18px #52694d0b}.document-original-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:0 0 10px;color:#849287;font-size:11px}.document-original-meta span:last-child{padding:5px 9px;border-radius:10px;background:#e6f2e6;color:#53816a;font-size:10px;font-weight:700}.document-detail-screen .document-reader{height:min(54dvh,560px);margin:0;overflow:hidden;border:0;border-radius:18px;background:#eff3ed}.document-detail-screen .document-reader iframe{background:#eff3ed}.document-detail-screen .document-reader img{object-fit:contain;background:#eff3ed}.document-original-hint{margin:10px 0 0;color:#89958c;font-size:10px;line-height:1.6}.document-ai-panel{background:#e6f3e6}.document-ai-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:10px}.document-ai-heading>span{display:flex;align-items:center;gap:6px;color:#4d896d;font-size:14px;font-weight:800}.document-ai-heading>small{color:#7f9585;font-size:10px}.document-ai-summary{margin:0;color:#5c6f62;font-size:12px;line-height:1.8;white-space:pre-wrap;overflow-wrap:anywhere}.document-ai-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:12px}.document-ai-stats>div{min-width:0;display:grid;gap:3px;padding:10px;border-radius:15px;background:#f8fbf6}.document-ai-stats strong{color:#4c8b6e;font-size:20px;line-height:1.2}.document-ai-stats span{color:#87948a;font-size:10px}.document-regenerate{display:flex;align-items:center;gap:5px;margin:11px 0 0;padding:6px 0;border:0;background:transparent;color:#668b76;font-size:10px;font-weight:700}.document-ai-outline,.document-ai-points{margin-top:15px;padding:12px;border-radius:16px;background:#fffefa}.document-ai-outline h2,.document-ai-points h2{margin:0 0 6px;color:#455e4e;font-size:12px}.document-ai-outline .outline-item,.document-ai-points .ai-point{color:#607167;font-size:11px;line-height:1.7}.document-ai-outline .outline-item strong{font-size:11px}.document-ai-outline .outline-item p,.document-ai-points .ai-point{overflow-wrap:anywhere}.document-ai-outline .outline-item button{font-size:10px}.document-ai-points .ai-point small{color:#89958c}.document-detail-screen .page-stepper{margin-top:10px}.document-detail-screen .backline{display:flex;align-items:center}.auth-links{display:grid;justify-items:start;gap:12px;margin-top:20px}.auth-link{min-height:28px;padding:2px 0;border:0;background:transparent;color:#326c52;text-align:left;font:600 12px/1.5 DM Sans,PingFang SC,sans-serif;cursor:pointer}.auth-link:hover{text-decoration:underline;text-underline-offset:3px}.auth-link:focus-visible{outline:2px solid #167d70;outline-offset:3px;border-radius:2px}.auth-note{margin-top:24px}.parent-overview{margin:20px 0 28px;padding:16px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.overview-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.overview-grid article{min-width:0;display:flex;flex-direction:column;gap:7px;padding:12px 10px;border:1px solid var(--line);border-radius:8px;background:#fff}.overview-grid small,.overview-grid span{color:var(--muted);font-size:10px;line-height:1.4}.overview-grid strong{font-size:21px;line-height:1.1}.overview-subjects{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:17px}.overview-subjects>strong{width:100%;font-size:12px}.overview-subjects>span{display:flex;gap:7px;align-items:center;padding:6px 8px;border-radius:6px;background:#edf5ef;color:#355d4c;font-size:11px}.overview-subjects b{color:var(--ink)}.overview-subjects>small{color:var(--muted)}.overview-activity{margin-top:19px}.overview-activity .section-heading{margin:0 0 8px}.overview-activity h3{margin:0;font-size:13px}.activity-row{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:9px 0;border-top:1px solid var(--line);font-size:11px}.activity-row span{min-width:0;overflow-wrap:anywhere}.activity-row small{flex:none;color:var(--muted);font-size:9px}.knowledge-panel .section-heading{margin:0 0 12px}.knowledge-panel .section-heading h2{font-size:13px}.knowledge-panel .section-heading>span{font-size:9px}.knowledge-empty{margin:0;color:var(--muted);font-size:11px;line-height:1.6}.knowledge-actions{display:flex;gap:8px;margin-top:12px}.knowledge-actions button{min-height:36px;justify-content:center;padding:0 13px}.knowledge-source-note,.knowledge-picker-note{margin:10px 0 0;color:var(--muted);font-size:10px;line-height:1.6}.knowledge-link-list,.knowledge-suggestions{display:grid;gap:8px}.knowledge-link,.knowledge-suggestions article{min-width:0;display:flex;align-items:center;gap:9px;padding:10px;border:1px solid #e1e9df;border-radius:8px;background:#fbfdf9}.knowledge-link>div,.knowledge-suggestions article>div{min-width:0;flex:1;display:grid;gap:4px}.knowledge-link strong,.knowledge-suggestions strong{font-size:11px;line-height:1.45;overflow-wrap:anywhere}.knowledge-link span,.knowledge-suggestions span,.knowledge-link small,.knowledge-suggestions small{font-size:9px;line-height:1.45;color:var(--muted);overflow-wrap:anywhere}.knowledge-link>button{width:32px;height:32px;flex:none;display:grid;place-items:center;border:1px solid var(--line);border-radius:7px;background:#fff;color:#718078}.knowledge-link>button:focus-visible,.knowledge-suggestions button:focus-visible,.knowledge-actions button:focus-visible{outline:3px solid #167d7060;outline-offset:2px}.knowledge-suggestions{margin-top:12px;padding-top:12px;border-top:1px solid var(--line)}.knowledge-suggestions article{align-items:center}.knowledge-suggestions article>button{min-height:34px;flex:none;white-space:nowrap}.knowledge-suggestions>p,.knowledge-state{margin:0;color:var(--muted);font-size:10px;line-height:1.6}.knowledge-error{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:10px;color:#a75543;font-size:10px}.knowledge-error p{margin:0;min-width:0;overflow-wrap:anywhere}.knowledge-error button{min-height:32px;flex:none}.knowledge-picker-sheet{width:min(100%,480px);max-height:min(88dvh,680px);overflow-y:auto;padding-bottom:calc(18px + env(safe-area-inset-bottom))}.knowledge-picker-sheet .sheet-heading h2{margin:0;font-size:18px;line-height:1.35}.knowledge-picker-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px;margin-top:18px}.knowledge-picker-fields label{min-width:0;display:grid;gap:6px;color:#52675d;font-size:10px;font-weight:700}.knowledge-picker-fields select{width:100%;min-width:0;height:42px;padding:0 9px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);font:inherit;font-size:11px}.knowledge-picker-wide{grid-column:1/-1}.knowledge-picker-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:17px;padding-top:13px;border-top:1px solid var(--line)}.knowledge-picker-actions button{min-width:94px;min-height:40px;justify-content:center}.knowledge-picker-sheet button:focus-visible,.knowledge-picker-fields select:focus-visible{outline:3px solid #167d7060;outline-offset:2px}@media (max-width:360px){.knowledge-link,.knowledge-suggestions article{align-items:flex-start}.knowledge-suggestions article>button{padding:0 7px;font-size:9px}.knowledge-picker-fields{gap:8px}}@media (max-width:520px){.overview-grid{grid-template-columns:1fr}}.mistake-archive-filter{margin:0 0 10px}.mistake-row{display:flex;align-items:center;border-top:1px solid var(--line)}.mistake-row .record{min-width:0;flex:1;border-top:0}.mistake-archive-action{width:34px;height:34px;flex:none;display:grid;place-items:center;border:1px solid var(--line);border-radius:8px;background:#fff;color:#61776b}.mistake-archive-action:hover{background:#f1f7f1;color:var(--green)}.detail-actions{display:flex;flex:none;gap:6px}.detail-actions .detail-edit{display:inline-flex;align-items:center;gap:4px;padding:0 9px}.student-welcome h1 em{display:inline-block;max-width:100%;overflow-wrap:anywhere;color:#267b70}.home-shortcuts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:5px;margin:2px 0 6px}.home-shortcut{min-width:0;min-height:104px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:8px 2px;border:0;border-radius:12px;background:transparent;text-align:center;cursor:pointer}.home-shortcut:active{background:#f0f5ed;transform:translateY(1px)}.home-shortcut:disabled{opacity:.5}.home-shortcut-icon{width:48px;height:48px;display:grid;place-items:center;border:1.5px solid #34453b;border-radius:13px;background:#fff;box-shadow:2px 2px #34453b;transform:rotate(-2deg)}.shortcut-note .home-shortcut-icon{border-radius:11px 13px 10px;transform:rotate(2deg)}.shortcut-document .home-shortcut-icon{border-radius:9px 12px 12px 9px;transform:rotate(-1deg)}.shortcut-ai .home-shortcut-icon{border-radius:14px 10px;transform:rotate(2deg)}.home-shortcut strong{max-width:100%;font-size:11px;line-height:1.3;overflow-wrap:anywhere}.home-shortcut small{max-width:100%;color:var(--muted);font-size:8px;line-height:1.35;overflow-wrap:anywhere}.parent-mode .home-shortcuts{grid-template-columns:repeat(3,minmax(0,1fr))}.parent-mode .shortcut-ai{display:none}.bottom-nav{grid-template-columns:repeat(5,minmax(0,1fr))}.bottom-nav.parent-student-nav{grid-template-columns:repeat(4,minmax(0,1fr))}.me-profile{display:flex;align-items:center;gap:13px;margin:22px 0;padding:17px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.me-avatar{width:52px;height:52px;flex:none;display:grid;place-items:center;border:1.5px solid #34453b;border-radius:17px 14px 17px 13px;background:#f6d778;color:#34453b;font:700 22px "Noto Serif SC",serif;box-shadow:2px 2px #34453b}.me-profile strong,.me-profile small{display:block;overflow-wrap:anywhere}.me-profile strong{font-size:15px}.me-profile small{margin-top:4px;color:var(--muted);font-size:10px}.me-actions{display:grid;gap:10px}.signout-action .action-icon{background:#fcece2;color:#a75543}.confirm-sheet,.password-sheet{max-height:min(88dvh,720px);overflow-y:auto;padding-bottom:calc(24px + env(safe-area-inset-bottom))}.confirm-mark{width:45px;height:45px;display:grid;place-items:center;margin:0 auto 11px;border-radius:14px;background:#fcece2;color:#a75543}.confirm-info .confirm-mark{background:#e6f1e9;color:#3d765c}.confirm-sheet h2{margin:0;text-align:center;font:700 19px/1.4 "Noto Serif SC",Songti SC,serif}.confirm-sheet .sheet-subtitle{text-align:center;margin-bottom:20px}.confirm-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px}.confirm-actions button{min-height:44px;justify-content:center;border-radius:10px;font-size:12px;font-weight:700}.confirm-actions .secondary{border:1px solid var(--line);background:#fff;color:var(--ink)}.danger-confirm{min-height:44px;display:flex;align-items:center;justify-content:center;padding:0 14px;border:0;border-radius:10px;background:#a84337;color:#fff;font-size:12px;font-weight:700}.confirm-continue{min-height:44px;display:flex;align-items:center;justify-content:center;padding:0 14px;border:0;border-radius:10px;background:#315e49;color:#fff;font-size:12px;font-weight:700}.confirm-continue:disabled{opacity:.5}.danger-confirm:disabled{opacity:.5}.danger-confirm.full,.full{width:100%}.password-sheet .form-stack{margin-top:15px}.password-sheet .form-stack label{font-size:12px}.password-sheet input{min-height:48px}.home-shortcut:focus-visible,.bottom-nav button:focus-visible,.confirm-actions button:focus-visible,.danger-confirm:focus-visible{outline:3px solid #167d7040;outline-offset:3px}@media (max-width:360px){.home-shortcuts{gap:1px}.home-shortcut{min-height:98px}.home-shortcut-icon{width:44px;height:44px}.home-shortcut strong{font-size:10px}.home-shortcut small{font-size:7px}}.detail-images .image-preview-trigger{display:block;width:100%;min-width:0;padding:0;overflow:hidden;border:0;border-radius:8px;background:#eef3ed;cursor:zoom-in}.detail-images .image-preview-trigger img{display:block;width:100%;aspect-ratio:4/3;object-fit:contain}.image-lightbox{position:fixed;z-index:40;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;padding:calc(56px + env(safe-area-inset-top)) 14px calc(18px + env(safe-area-inset-bottom));background:#111a17f2}.image-lightbox section{position:relative;width:100%;height:100%;min-width:0;display:grid;place-items:center}.image-lightbox section>img{display:block;max-width:100%;max-height:100%;object-fit:contain}.image-lightbox-close{position:absolute;z-index:1;top:calc(-44px - env(safe-area-inset-top));right:0;width:42px;height:42px;display:grid;place-items:center;border:1px solid #ffffff80;border-radius:50%;background:#ffffff18;color:#fff;cursor:pointer}.image-lightbox-close:focus-visible{outline:3px solid #fff;outline-offset:3px}.crop-backdrop{z-index:60}.crop-sheet{width:min(100%,560px);max-height:calc(100dvh - 12px);display:flex;flex-direction:column;overflow:hidden;padding:9px 18px calc(18px + env(safe-area-inset-bottom));border-radius:18px 18px 0 0;background:var(--paper)}.crop-heading{display:flex;align-items:center;justify-content:space-between;min-height:48px}.crop-heading h2{margin:0;font:700 18px/1.35 "Noto Serif SC",Songti SC,serif}.crop-stage{width:100%;height:min(58dvh,480px);min-height:260px;display:grid;place-items:center;overflow:auto;border-radius:10px;background:#202722}.crop-stage .ReactCrop{max-width:100%;max-height:100%;touch-action:none}.crop-stage .ReactCrop__child-wrapper{max-width:100%;max-height:100%}.crop-stage img{display:block;max-width:100%;max-height:min(58dvh,480px);width:auto;height:auto;object-fit:contain}.ReactCrop__crop-selection{border:2px solid #fff;box-shadow:0 0 0 9999px #10171380}.ReactCrop__drag-handle:after{width:12px;height:12px;border:2px solid #fff;background:#277a69;box-shadow:0 1px 4px #0008}.crop-help{margin:8px 0 0;color:var(--muted);font-size:10px;text-align:center}.crop-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px;padding-top:8px}.crop-actions button{min-height:44px;justify-content:center}.image-preview .photo-ocr-status{position:absolute;right:3px;bottom:3px;left:3px;padding:3px 4px;border-radius:5px;background:#ffffffeb;color:#52675d;text-align:center;font-size:8px;line-height:1.25}.image-preview .photo-ocr-status.status-failed{color:#a75543}.image-preview .photo-ocr-retry{right:auto;left:3px;border:0;background:#ffffffeb;color:#326c52}.image-preview .photo-ocr-retry:focus-visible,.image-preview>button:focus-visible{outline:2px solid #167d70;outline-offset:2px}.image-preview>.image-preview-open{position:absolute;top:0;right:0;bottom:0;left:0;z-index:0;width:100%;height:100%;display:grid;place-items:center;padding:0;border:0;border-radius:0;background:transparent;cursor:zoom-in}.image-preview>.image-preview-open img{display:block;width:100%;height:100%;object-fit:contain}.image-preview>.image-preview-remove{z-index:2}.mistake-filters{grid-template-columns:repeat(2,minmax(0,1fr))}.mistake-filters .search-box{grid-column:1/-1}.question-region{box-sizing:border-box}.sheet-clear-confirm{grid-column:span 2;display:flex;align-items:center;justify-content:center;gap:8px;border:1px solid #edd7be;border-radius:9px;color:#735b43;font-size:10px}.sheet-clear-confirm button{padding:5px;border:0;background:transparent;color:#735b43;font-size:10px}.sheet-clear-confirm button:last-child{color:#a84337;font-weight:700}.mistake-library{padding-top:20px}.mistake-subject-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:20px}.mistake-subject-tile{position:relative;min-width:0;min-height:154px;display:flex;flex-direction:column;align-items:flex-start;justify-content:flex-start;gap:6px;overflow:hidden;padding:16px 14px;border:1px solid #40544824;border-radius:7px;background:var(--tile-bg);color:var(--tile-ink);text-align:left;box-shadow:0 2px #283c3212}.mistake-subject-tile:before{position:absolute;top:-4px;right:22px;width:22px;height:10px;border-radius:2px 2px 0 0;background:var(--tile-ink);opacity:.38;content:""}.mistake-subject-tile:after{position:absolute;right:8px;bottom:-11px;width:74px;height:74px;border:1px solid currentColor;border-radius:50%;opacity:.12;content:""}.mistake-subject-tile:active{transform:translateY(1px);box-shadow:none}.mistake-subject-tile:focus-visible,.mistake-card-main:focus-visible,.mistake-card-actions button:focus-visible,.mistake-select-control:focus-visible,.mistake-management-bar button:focus-visible,.mistake-heading-actions button:focus-visible{outline:3px solid #167d7060;outline-offset:2px}.subject-tile-icon{width:34px;height:34px;display:grid;place-items:center;border:1px solid currentColor;border-radius:9px;background:#ffffff9c}.mistake-subject-tile strong{margin-top:3px;font:700 20px/1.25 "Noto Serif SC",Songti SC,serif}.subject-tile-count{font-size:13px;font-weight:650}.mistake-subject-tile small{margin-top:auto;color:inherit;font-size:10px;opacity:.78}.mistake-subject-tile.tone-0{--tile-bg:#f9e2df;--tile-ink:#944e4a}.mistake-subject-tile.tone-1{--tile-bg:#e0edf5;--tile-ink:#3b6b8b}.mistake-subject-tile.tone-2{--tile-bg:#eee5f3;--tile-ink:#6d5a8b}.mistake-subject-tile.tone-3{--tile-bg:#e0efeb;--tile-ink:#3d7066}.mistake-subject-tile.tone-4{--tile-bg:#f7e9d9;--tile-ink:#946640}.mistake-subject-tile.tone-5{--tile-bg:#e7eedf;--tile-ink:#557449}.mistake-subject-heading{margin-bottom:15px}.mistake-subject-heading>.back-button{margin-bottom:14px}.mistake-heading-row{display:flex;align-items:center;justify-content:space-between;gap:10px}.mistake-heading-row .eyebrow{margin-bottom:5px}.mistake-heading-row .page-subtitle{margin-top:4px}.mistake-heading-actions{display:flex;flex:none;align-items:center;gap:7px}.mistake-heading-actions>.secondary{min-height:36px;padding:0 11px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);font-size:11px;font-weight:650}.mistake-heading-actions .add-button{min-width:auto;height:36px}.mistake-search{width:100%;margin:14px 0 12px}.mistake-filter-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.mistake-filter-grid label,.mistake-date-range label{min-width:0;display:grid;gap:5px;color:var(--muted);font-size:9px;font-weight:650}.mistake-filter-grid select,.mistake-date-range input{width:100%;min-width:0;height:38px;padding:0 9px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);font:500 11px DM Sans,PingFang SC,sans-serif}.mistake-date-range{display:flex;align-items:end;gap:8px;margin-top:9px}.mistake-date-range label{flex:1}.mistake-date-range>span{padding-bottom:12px;color:var(--muted);font-size:10px}.mistake-archive-filter{margin:12px 0 8px}.mistake-management-bar{display:flex;align-items:center;gap:8px;margin:10px 0;padding:8px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.mistake-management-bar>span{flex:1;color:var(--muted);font-size:10px;white-space:nowrap}.mistake-management-bar>button,.mistake-management-bar>div>button{min-height:36px;display:inline-flex;align-items:center;justify-content:center;gap:5px;padding:0 9px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);font-size:10px;font-weight:650;white-space:nowrap}.mistake-management-bar>div{display:flex;gap:6px}.mistake-management-bar>div>.mistake-bulk-delete{border-color:#e9c9bd;color:#a84337}.mistake-management-bar button:disabled{opacity:.45}.mistake-list-error{margin:8px 0}.mistake-list-loading{padding:34px 10px;color:var(--muted);font-size:12px;text-align:center}.mistake-date-groups{display:grid;gap:18px;margin-top:8px}.mistake-date-heading{display:flex;align-items:center;gap:8px;padding:4px 0 7px;color:#6c7972}.mistake-date-heading strong{font-size:12px;font-weight:650}.mistake-date-heading small{margin-left:auto;font-size:10px}.date-dot{width:8px;height:8px;border-radius:50%;background:#aab4ad}.mistake-card-list{display:grid;gap:10px}.mistake-entry{position:relative;min-width:0;padding:10px;border:1px solid #e7ebe5;border-radius:7px;background:#fff;box-shadow:0 1px 3px #25392e0a}.mistake-entry.is-selected{border-color:#4c9a76;background:#f5faf5}.mistake-card-main{width:100%;min-width:0;display:grid;grid-template-columns:76px minmax(0,1fr) 16px;align-items:center;gap:10px;padding:0;border:0;background:transparent;color:var(--ink);text-align:left}.mistake-card-image{position:relative;width:76px;height:76px;display:grid;place-items:center;overflow:hidden;border:1px solid #edf0eb;border-radius:5px;background:#f6f8f4;color:#52715f;font-size:11px;font-weight:650}.mistake-card-image img{width:100%;height:100%;object-fit:cover}.mistake-card-image>small{position:absolute;right:4px;bottom:4px;padding:2px 5px;border-radius:4px;background:#18231dcc;color:#fff;font-size:9px}.mistake-card-copy{min-width:0;display:grid;gap:5px}.mistake-card-topline{min-width:0;display:flex;align-items:flex-start;justify-content:space-between;gap:5px}.mistake-card-topline>strong{min-width:0;display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2;font-size:12px;line-height:1.45}.mistake-status{flex:none;padding:3px 5px;border-radius:4px;background:#edf3ee;color:#597064;font-size:8px;white-space:nowrap}.mistake-status.due{background:#fff0dc;color:#98642b}.mistake-status.mastered{background:#e4f2e8;color:#39734f}.mistake-card-excerpt{display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2;color:#68776e;font-size:10px;line-height:1.45}.mistake-card-copy>small{color:#8a968f;font-size:9px}.mistake-card-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:8px;padding-top:7px;border-top:1px solid #eef1ed}.mistake-card-actions button{min-height:32px;display:inline-flex;align-items:center;gap:5px;padding:0 8px;border:0;border-radius:6px;background:#f4f7f3;color:#426b56;font-size:10px;font-weight:650}.mistake-select-control{position:absolute;z-index:1;top:50%;left:9px;width:26px;height:26px;display:grid;place-items:center;transform:translateY(-50%);border:1px solid #aebbb1;border-radius:7px;background:#fff;color:#fff}.mistake-select-control.checked{border-color:#33865e;background:#33865e}.mistake-entry.is-managing{padding-left:42px}.mistake-clear-filters{display:block;margin:10px auto;padding:7px 10px;border:0;background:transparent;color:#39755d;font-size:11px;font-weight:650}.mistake-delete-backdrop{z-index:20}.chat-working button{min-height:36px;display:inline-flex;align-items:center;gap:6px;padding:0 11px;border:1px solid #d9e4dc;border-radius:9px;background:#fff;color:#476451;font:600 11px DM Sans,PingFang SC,sans-serif;cursor:pointer}.chat-error{margin:0 0 8px}.shell.page-chat{display:flex;height:100dvh;min-height:0;flex-direction:column;overflow:hidden;padding-bottom:calc(68px + env(safe-area-inset-bottom))}.page-chat>.topbar{flex:none}.page-chat>.inline-error{flex:none}.page-chat>.chat-screen{flex:1;min-height:0;overflow:hidden;padding:16px 0 8px}.page-chat .chat-messages{min-height:0;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;padding:8px 2px 18px}.page-chat .chat-composer{position:relative;bottom:auto;flex:none;margin:8px 0 0}.chat-bubble{min-width:0;overflow:hidden}.chat-markdown{min-width:0;color:#344b40;font-size:12px;line-height:1.75;overflow-wrap:anywhere}.chat-markdown>*:first-child{margin-top:0}.chat-markdown>*:last-child{margin-bottom:0}.chat-markdown p{margin:7px 0;white-space:pre-wrap;overflow-wrap:anywhere}.chat-markdown h1,.chat-markdown h2,.chat-markdown h3,.chat-markdown h4{margin:12px 0 5px;color:#294438;font-size:13px;line-height:1.5}.chat-markdown ul,.chat-markdown ol{margin:6px 0;padding-left:20px}.chat-markdown li{padding-left:2px}.chat-markdown li+li{margin-top:3px}.chat-markdown blockquote{margin:8px 0;padding:2px 0 2px 10px;border-left:2px solid #aacbb5;color:#617269}.chat-markdown pre,.chat-markdown table{max-width:100%;overflow-x:auto}.chat-markdown pre{padding:9px;border-radius:7px;background:#f4f7f3;font-size:10px;white-space:pre}.chat-markdown code{font-size:.92em;overflow-wrap:anywhere}.chat-markdown .katex-display{max-width:100%;margin:9px 0;overflow-x:auto;overflow-y:hidden;padding:3px 0 8px;text-align:left}.chat-markdown .katex{font-size:1em}.solution-markdown{color:#42594e;font-size:13px;line-height:1.75;overflow-wrap:anywhere}.solution-markdown .chat-markdown h1,.solution-markdown .chat-markdown h2,.solution-markdown .chat-markdown h3{margin:11px 0 5px;font-size:13px}.solution-markdown .chat-markdown>*:first-child{margin-top:0}.solution-markdown .chat-markdown ol,.solution-markdown .chat-markdown ul{padding-left:21px}.solution-markdown .katex-display{max-width:100%;overflow-x:auto;overflow-y:hidden}.review-solution .solution-markdown{color:#42594e;font-size:13px}.review-solution .solution-markdown .chat-markdown>*:last-child{margin-bottom:0}.explanation-actions .explanation-cancel-action{min-width:104px;border:1px solid #d9e3d9;border-radius:11px;background:#fff;color:#55685d;box-shadow:0 1px 2px #203d3708}.explanation-actions .explanation-cancel-action:hover{border-color:#b8cdbd;background:#f4f8f3}.explanation-actions .explanation-cancel-action:focus-visible{outline:3px solid #167d7040;outline-offset:2px}.explanation-backdrop{z-index:24}.explanation-sheet{max-height:min(88dvh,760px);display:flex;flex-direction:column;gap:12px;padding-bottom:calc(18px + env(safe-area-inset-bottom))}.explanation-sheet .sheet-heading h2{max-width:min(76vw,380px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:17px}.explanation-sheet .sheet-subtitle{margin:0}.explanation-answer{min-height:0;max-height:min(55dvh,460px);overflow:auto;padding:14px;border:1px solid #e2e9e2;border-radius:10px;background:#fff;color:var(--ink);font-size:12px;line-height:1.7}.explanation-answer .chat-markdown{overflow-wrap:anywhere}.explanation-answer .chat-markdown h1,.explanation-answer .chat-markdown h2,.explanation-answer .chat-markdown h3{font-family:"Noto Serif SC",Songti SC,serif}.explanation-actions{display:flex;justify-content:flex-end;gap:9px;padding-top:2px}.explanation-actions button{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:0 15px;border-radius:11px;font-size:12px;font-weight:700}.explanation-actions .explanation-close-action{min-width:104px;border:1px solid #d9e3d9;background:#fff;color:#55685d;box-shadow:0 1px 2px #203d3708}.explanation-actions .explanation-close-action:hover{background:#f4f8f3;border-color:#b8cdbd}.explanation-actions .explanation-save-action{min-width:180px;box-shadow:0 3px 8px #247d6c28}.replace-solution-confirm{padding:11px;border:1px solid #ecdcb5;border-radius:9px;background:#fff9ea}.replace-solution-confirm p{margin:0 0 10px;color:#6f5b32;font-size:11px;line-height:1.5}.explanation-loading{min-height:84px;display:flex;align-items:center;justify-content:center;gap:12px;color:#4e705e}.explanation-loading strong,.explanation-loading small{display:block}.explanation-loading strong{font-size:12px}.explanation-loading small{margin-top:5px;color:var(--muted);font-size:10px}.loading-spinner{width:22px;height:22px;border:2px solid #dce9de;border-top-color:#528062;border-radius:50%;animation:explanation-spin .75s linear infinite}@keyframes explanation-spin{to{transform:rotate(360deg)}}@media (min-width:700px){.shell.page-chat{height:calc(100dvh - 48px);min-height:0}}@media (min-width:520px){.mistake-subject-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.mistake-subject-tile{min-height:148px}}@media (max-width:360px){.mistake-heading-actions{gap:4px}.mistake-heading-actions>.secondary{padding:0 8px}.mistake-heading-actions .add-button{padding:0 8px}.mistake-management-bar{gap:5px}.mistake-management-bar>button,.mistake-management-bar>div>button{padding:0 7px}.mistake-card-main{grid-template-columns:64px minmax(0,1fr) 14px;gap:8px}.mistake-card-image{width:64px;height:64px}}@media (max-width:380px){.explanation-actions{gap:7px}.explanation-actions .explanation-close-action{min-width:88px;padding:0 10px}.explanation-actions .explanation-save-action{min-width:0;flex:1;padding:0 10px;font-size:11px}}.explanation-field+.explanation-field{margin-top:13px;padding-top:11px;border-top:1px solid #edf1eb}.explanation-field h3{margin:0 0 5px;color:#456b53;font:700 12px/1.4 "Noto Serif SC",Songti SC,serif}.explanation-field .chat-markdown{overflow-wrap:anywhere}.explanation-field .chat-markdown>*:first-child{margin-top:0}.explanation-field .chat-markdown>*:last-child{margin-bottom:0}.explanation-field .chat-markdown p{margin:0;line-height:1.65}.question-page-tabs{display:flex;gap:7px;overflow-x:auto;padding:2px 0 8px;scrollbar-width:none}.question-page-tabs::-webkit-scrollbar{display:none}.question-page-tabs>button,.question-add-page{min-height:38px;flex:none;display:flex;align-items:center;gap:7px;padding:0 11px;border:1px solid var(--line);border-radius:9px;background:#fff;color:#52675b;font-size:11px;font-weight:700}.question-page-tabs>button.active{border-color:#6e9c7a;background:#eef7ee;color:#315f43}.question-page-tabs small{font-size:9px;font-weight:500;color:var(--muted)}.question-add-page{position:relative;border-style:dashed;color:var(--green)}.question-add-page input{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;opacity:0;cursor:pointer}.question-group-merge{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr) auto;align-items:end;gap:7px;margin:10px 0;padding:10px;border:1px solid #dfe9de;border-radius:10px;background:#f7faf5}.question-group-merge label{min-width:0;display:grid;gap:5px;color:#506359;font-size:10px;font-weight:700}.question-group-merge select{width:100%;min-width:0;height:38px;padding:0 7px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);font:inherit;font-size:10px}.question-group-merge>button{min-height:38px;padding:0 10px;white-space:nowrap}.question-group-pages{margin:7px 0 0;color:var(--muted);font-size:10px}.question-meta-item[open] summary{margin-bottom:10px}.question-replace-page{position:relative;width:36px;height:36px;flex:none;display:grid;place-items:center;border:1px solid var(--line);border-radius:9px;background:#fff;color:#567366}.question-replace-page input{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;opacity:0;cursor:pointer}@media (max-width:390px){.question-group-merge{grid-template-columns:1fr 1fr}.question-group-merge>button{grid-column:1/-1}.question-page-tabs>button,.question-add-page{padding:0 9px}}.question-group-merge-action{min-height:42px;display:inline-flex;align-items:center;justify-content:center;gap:7px;align-self:end;padding:0 14px;border:1px solid #b8d6c0;border-radius:9px;background:#eaf5ec;color:#286b49;font-size:11px;font-weight:750;white-space:nowrap;cursor:pointer;transition:background .16s,border-color .16s,transform .16s,box-shadow .16s}.question-group-merge-action:hover:not(:disabled){border-color:#8fbea0;background:#dff0e3;box-shadow:0 3px 9px #286b4918}.question-group-merge-action:active:not(:disabled){transform:translateY(1px)}.question-group-merge-action:focus-visible,.question-submit:focus-visible{outline:3px solid #167d7040;outline-offset:3px}.question-group-merge-action:disabled{border-color:#e2e9e2;background:#f1f4f0;color:#a0aaa2;cursor:not-allowed}.question-submit{width:auto;min-width:176px;min-height:48px;display:flex;align-items:center;justify-content:center;margin:4px 0 0 auto;padding:0 20px;border-radius:11px;box-shadow:0 4px 12px #167d7026;transition:background .16s,transform .16s,box-shadow .16s}.question-submit:hover:not(:disabled){background:#116b61;box-shadow:0 6px 16px #167d7033}.question-submit:active:not(:disabled){transform:translateY(1px)}.question-submit:disabled{cursor:not-allowed}@media (max-width:390px){.question-group-merge-action{justify-self:end;min-width:150px}.question-submit{min-width:0;max-width:100%;padding:0 16px}}.question-process-choice{position:relative;z-index:1;padding:10px 14px;background:#fff;border-bottom:1px solid var(--line)}.question-process-choice>p{margin:0 0 9px;color:#52675b;font-size:11px;line-height:1.5}.question-process-choice>p strong,.question-process-choice>p span{display:block}.question-process-choice>p span{margin-top:4px;color:var(--muted);font-size:10px}.question-process-choice>div{display:flex;gap:9px}.question-restore-float{position:absolute;top:10px;right:10px;z-index:3;display:grid;place-items:center;width:36px;height:36px;padding:0;border:1px solid #ffffffcc;border-radius:50%;background:#fffc;color:#51705f;box-shadow:0 2px 10px #263c321f;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);transition:transform .15s ease,background .15s ease}.question-restore-float:hover{background:#fff;transform:scale(1.06)}.question-restore-float:disabled{opacity:.5}.question-process-choice button{min-height:42px;flex:1;justify-content:center;border-radius:9px;font-size:11px}.question-process-choice .secondary{display:flex;align-items:center;gap:7px;padding:0 10px;border:1px solid #d9e4da;background:#f8fbf7;color:#426653;font-weight:700}.question-erase-preview{border-bottom-color:#cfe2d1;background:#f5faf4}.question-erase-preview .primary{display:flex;align-items:center;gap:7px;padding:0 10px}.mistake-upload-sheet{padding-bottom:calc(22px + env(safe-area-inset-bottom))}.mistake-upload-sheet .sheet-heading{margin-bottom:9px}.mistake-upload-sheet>.sheet-subtitle{margin:0 0 15px}.mistake-upload-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}.mistake-upload-option{position:relative;min-height:112px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:6px;padding:15px;border:1px solid #dbe7dc;border-radius:11px;background:#fff;color:#426d53;overflow:hidden}.mistake-upload-option strong{color:var(--ink);font-size:12px}.mistake-upload-option small{color:var(--muted);font-size:10px}.mistake-upload-option input{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;opacity:0;cursor:pointer}.mistake-upload-option:focus-within{outline:3px solid #167d7030;outline-offset:2px;border-color:#7baa87}@media (max-width:360px){.mistake-upload-actions{grid-template-columns:1fr}.mistake-upload-option{min-height:82px}}.document-library .document-list{display:grid;gap:10px;margin-top:18px}.document-library .document-row{min-width:0;padding:15px 12px;border:1px solid var(--line);border-radius:12px;background:#fff;box-shadow:0 2px #283c3208}.document-library .document-row>svg{flex:none;color:var(--green)}.document-library .document-file-icon{width:42px;height:48px;border-radius:7px;background:#edf4ee;color:var(--green)}.document-library .document-row-copy strong{font-size:13px}.document-library .document-row-copy small,.document-library .document-status{font-size:10px}.document-library .document-row:hover{border-color:#94b4a2;background:#fbfdfb}.editable-profile{padding:20px 16px;border:1px solid #dce7df;border-radius:16px;background:#f0f6ef;gap:16px}.profile-avatar{position:relative;width:64px;height:64px;flex:none;border-radius:50%;background:#f6d778;box-shadow:0 0 0 4px #fff;color:#34453b;display:grid;place-items:center;cursor:pointer}.profile-avatar>span:first-child{font:700 26px "Noto Serif SC",serif}.profile-avatar img{width:100%;height:100%;object-fit:cover;border-radius:50%}.profile-avatar input{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;width:100%;height:100%;cursor:pointer}.profile-avatar:focus-within{outline:3px solid #167d7060;outline-offset:5px}.profile-avatar-camera{position:absolute;bottom:-1px;right:-3px;display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--green);color:#fff;border:2px solid white;pointer-events:none}.profile-copy{min-width:0;flex:1}.profile-name{display:flex;align-items:center;gap:10px;max-width:100%;padding:4px 0;border:0;background:none;color:var(--ink);text-align:left;cursor:pointer}.profile-name strong{overflow-wrap:anywhere;font-size:18px}.profile-name svg{flex:none;color:var(--green)}.profile-name:focus-visible{outline:3px solid #167d7060;outline-offset:3px}.profile-copy small{display:block;margin-top:5px;overflow-wrap:anywhere;color:var(--muted)}.profile-name-sheet input{font-size:16px}button.profile-avatar{padding:0;border:0}.avatar-picker-sheet{max-height:90dvh;overflow-y:auto}.default-avatar-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px 8px;margin:18px 0 22px}.default-avatar-grid button{display:grid;justify-items:center;gap:6px;min-width:0;padding:5px;border:2px solid transparent;border-radius:14px;background:transparent;color:var(--muted);cursor:pointer}.default-avatar-grid img{width:100%;max-width:86px;aspect-ratio:1;border-radius:50%}.default-avatar-grid span{font-size:11px}.default-avatar-grid button.selected{border-color:var(--green);background:#edf5ef;color:var(--green)}.default-avatar-grid button:focus-visible{outline:3px solid #167d7060;outline-offset:2px}.avatar-picker-actions{display:flex;justify-content:space-between;gap:12px}.avatar-picker-actions button{min-height:44px;display:flex;align-items:center;justify-content:center;gap:6px;padding:0 14px}.avatar-picker-actions .primary{flex:1}.avatar-picker-actions .secondary{border:1px solid #d8e5dc;border-radius:12px;background:#fff;color:var(--green);font:inherit;font-size:12px;font-weight:650}.avatar-picker-actions .primary{border-radius:12px}.avatar-picker-actions button:disabled{opacity:.5}.mistake-taxonomy-filters{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin:-2px 0 10px}.mistake-taxonomy-filters label{min-width:0;display:grid;gap:5px;color:#52675d;font-size:10px;font-weight:700}.mistake-taxonomy-filters input{width:100%;min-width:0;height:38px;padding:0 9px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);font:inherit;font-size:11px}.mistake-taxonomy-filters input:focus-visible{outline:3px solid #167d7060;outline-offset:2px}.mistake-detail-chapter{margin:-7px 0 13px;color:var(--muted);font-size:11px;overflow-wrap:anywhere}.review-redo textarea{width:100%;min-height:96px;padding:10px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--ink);font:12px/1.6 DM Sans,PingFang SC,sans-serif;resize:vertical}.review-redo .image-picker-row{margin-top:9px;flex-wrap:wrap}.review-redo .image-previews{margin-top:9px}.review-history-event{padding:9px 0;border-top:1px solid var(--line)}.review-history-event>div:first-child{display:flex;justify-content:space-between;font-size:10px}.review-history-event>p{margin-top:7px!important;font-size:11px!important}.review-history-event .image-previews{margin-top:7px}.variant-result{display:flex;flex-wrap:wrap;gap:8px 14px;border:1px solid var(--line);border-radius:9px;padding:10px}.variant-result legend{padding:0 5px;font-size:12px;font-weight:700}.variant-result label{display:flex;align-items:center;gap:5px;font-size:12px}.variant-result input{accent-color:var(--green)}.variant-answer-thumb{width:76px;height:76px;object-fit:cover;border:1px solid var(--line);border-radius:7px}.variant-sheet .image-picker{min-height:42px;display:flex;align-items:center;gap:8px;padding:8px 11px;border:1px solid var(--line);border-radius:8px;color:var(--ink);font-size:12px;cursor:pointer}.variant-sheet .image-picker input{max-width:190px;font-size:10px}.explanation-feedback{display:flex;align-items:center;gap:7px;padding:8px 0;color:var(--muted);font-size:11px}.explanation-feedback button{padding:6px 9px;border:1px solid var(--line);border-radius:7px;background:#fff;color:var(--ink);font:inherit}.practice-section-title{margin-top:26px}.practice-entry-card{width:100%;min-height:64px;display:flex;align-items:center;gap:11px;padding:11px 13px;border:1px solid #e7dfbd;border-radius:13px;background:#fffaf0;text-align:left;cursor:pointer}.practice-entry-card:active{transform:translateY(1px)}.practice-entry-icon{width:38px;height:38px;flex:none;display:grid;place-items:center;border-radius:10px;background:#f8efdc;color:#b09563}.practice-entry-copy{min-width:0;flex:1}.practice-entry-copy strong{display:block;font-size:12px}.practice-entry-copy small{display:block;margin-top:3px;color:var(--muted);font-size:10px;line-height:1.4}.practice-entry-card .arrow{flex:none;color:#c3a97e}.practices-screen{min-width:0}.practices-heading{margin-bottom:15px}.practices-heading>.back-button{margin-bottom:14px}.practices-intro{display:flex;align-items:center;gap:12px}.practices-intro .practice-page-icon{width:46px;height:46px;flex:none;display:grid;place-items:center;border-radius:15px;background:#e4f2e5;color:#4c8c70}.practices-intro .page-title{margin:0;font-size:22px;line-height:1.3;font-weight:800;color:#334f43}.practices-intro .page-subtitle{margin:4px 0 0;font-size:11px;line-height:1.6;color:#87928b}.practice-list-loading{padding:28px 0;color:var(--muted);font-size:11px;text-align:center}.practice-list{display:grid;gap:9px;margin-top:18px}.practice-row{width:100%;min-width:0;display:flex;align-items:center;gap:10px;padding:12px;border:1px solid var(--line);border-radius:12px;background:#fff;text-align:left;cursor:pointer;transition:border-color .15s,background .15s}.practice-row:hover{border-color:#b6d1c0;background:#fbfdf9}.practice-row:active{transform:translateY(1px)}.practice-row-main{min-width:0;flex:1}.practice-subject{display:inline-block;margin-bottom:5px;padding:2px 7px;border-radius:6px;background:#eef5ee;color:#3f7155;font-size:9px;font-weight:700}.practice-row strong{display:-webkit-box;overflow:hidden;font-size:12px;font-weight:600;line-height:1.5;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow-wrap:anywhere}.practice-row small{display:block;margin-top:5px;color:var(--muted);font-size:10px}.practice-result.independent_correct{color:#367554;font-weight:700}.practice-result.prompted_correct{color:#a67835;font-weight:700}.practice-result.incorrect{color:#a75543;font-weight:700}.practice-row .arrow{flex:none;color:#98a59f}.review-panel .review-meta.detail-review-status{margin-top:0}.review-panel-heading{margin-bottom:8px}.review-history-list{list-style:none;margin:12px 0 0;padding:0}.review-history-item details>summary{display:flex;align-items:center;gap:8px;padding:10px 0;border-top:1px solid var(--line);cursor:pointer;font-size:11px;color:var(--muted);list-style:none;-webkit-tap-highlight-color:transparent}.review-history-item details>summary::-webkit-details-marker{display:none}.review-history-item details[open] .review-history-chevron{transform:rotate(180deg)}.review-history-chevron{flex:none;color:#98a59f;transition:transform .15s}.review-history-date{flex:none}.review-result-chip{flex:none;padding:2px 8px;border-radius:100px;background:#eef5ee;color:#367554;font-size:9px;font-weight:700}.review-result-chip.prompted_correct,.review-result-chip.fuzzy{background:#fff6e3;color:#a67835}.review-result-chip.incorrect,.review-result-chip.unknown{background:#fdeeea;color:#a75543}.review-stage-chip{margin-left:auto;flex:none;padding:2px 7px;border-radius:100px;background:#f0f3ee;color:#7d8a80;font-size:9px;font-weight:650}.review-history-detail{padding:9px 11px 11px;border-top:1px dashed #e2e9e1;border-radius:0 0 9px 9px;background:#fafcf9}.review-history-detail p{margin:0;color:#42594e;font-size:11px;line-height:1.7;white-space:pre-wrap;overflow-wrap:anywhere}.review-history-detail .image-previews{margin-top:8px}.cause-category-picker{display:grid;gap:6px}.cause-category-picker .cause-category-label{color:#52675b;font-size:11px;font-weight:700}.cause-category-options{display:flex;flex-wrap:wrap;gap:7px}.cause-category-options button{min-height:30px;padding:0 11px;border:1px solid var(--line);border-radius:100px;background:#fff;color:#4c6154;font-size:11px;font-weight:650;cursor:pointer}.cause-category-options button.selected{border-color:#4f8b6e;background:#e3f1e6;color:#256b51}.cause-category-picker small{color:var(--muted);font-size:9px;line-height:1.5}.cause-category-tags{display:flex;flex-wrap:wrap;gap:6px;margin:4px 0 2px}.cause-category-tags span{padding:2px 8px;border-radius:100px;background:#eef5ee;color:#367554;font-size:10px;font-weight:650}.cause-ai-suggestion{display:grid;gap:7px;margin-bottom:13px;padding:11px 12px;border:1px solid #e0e9dd;border-radius:12px;background:#f4faf4}.cause-ai-suggestion-title{color:#456b53;font:700 12px/1.4 "Noto Serif SC",Songti SC,serif}.cause-ai-suggestion>small{color:var(--muted);font-size:10px;line-height:1.5}.cause-ai-suggestion .secondary{justify-self:start;min-height:34px;display:inline-flex;align-items:center;padding:0 12px;border:1px solid #cddfd1;border-radius:8px;background:#e8f2e9;color:#256b51;font-size:11px;font-weight:700}.stats-link{border:0;background:none;color:var(--green);font-size:10px;font-weight:700;cursor:pointer;padding:0;display:inline-flex;align-items:center;gap:2px}.stats-link:hover{text-decoration:underline}.stats-topic-link{margin-top:8px}.stats-bars li .stats-link{margin-left:8px}.cause-filter select{width:100%;min-width:0;height:38px;padding:0 9px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);font:500 11px DM Sans,PingFang SC,sans-serif}.document-upload-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:2px}.document-upload-option{position:relative;min-height:104px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:5px;padding:14px;border:1px dashed #9bb9a5;border-radius:12px;background:#f7fbf7;color:var(--green);cursor:pointer}.document-upload-option input{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;opacity:0;cursor:pointer}.document-upload-option strong{color:#2f5c45;font-size:12px}.document-upload-option small{color:#8a998f;font-size:9px;line-height:1.5}.document-selected-file .document-page-badge{flex:none;padding:2px 7px;border-radius:6px;background:#e3f1e6;color:#256b51;font-size:9px;font-weight:700;overflow:visible;white-space:nowrap}.document-page-order{display:flex;gap:2px;flex:none}.document-page-order button{width:24px;height:24px;min-height:24px;padding:0!important;display:grid;place-items:center;border:1px solid var(--line)!important;border-radius:6px;background:#fff!important;color:#4c6154!important}.document-page-order button:disabled{opacity:.35!important}.document-selected-file .document-selected-file-name{flex:1;min-width:0}.document-file-thumb{width:46px;height:52px;flex:none;padding:0;border:1px solid var(--line);border-radius:6px;overflow:hidden;background:#eef3ed;cursor:pointer}.document-file-thumb-img{width:100%;height:100%;object-fit:cover;display:block}.document-image-editor{position:fixed;top:0;right:0;bottom:0;left:0;z-index:60;display:flex;flex-direction:column;background:#1b2320f2;color:#fff}.document-image-header{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 14px;font-size:12px;font-weight:700}.document-image-header button{width:34px;height:34px;display:grid;place-items:center;border:0;border-radius:9px;background:#ffffff1f;color:#fff}.document-image-stage{position:relative;flex:1;min-height:0;display:grid;place-items:center;overflow:hidden;padding:12px 0}.document-image-hidden{display:none}.document-image-frame{position:relative;background:#fff;box-shadow:0 8px 30px #0009;touch-action:none}.document-image-frame img{display:block;width:100%;height:100%;pointer-events:none;object-fit:fill}.document-image-footer{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 14px calc(14px + env(safe-area-inset-bottom));border-top:1px solid #ffffff1a}.document-image-zoom{display:flex;align-items:center;gap:4px}.document-image-zoom button{width:30px;height:30px;display:grid;place-items:center;border:0;border-radius:8px;background:#ffffff1f;color:#fff}.document-image-zoom button:disabled{opacity:.4}.document-image-zoom span{min-width:36px;text-align:center;font-size:10px;font-variant-numeric:tabular-nums}.document-image-actions{display:flex;gap:8px}.document-image-actions button{min-height:36px;padding:0 14px;border:0;border-radius:9px;background:#fff2;color:#fff;font-size:12px;font-weight:700}.document-image-actions .primary{display:inline-flex;align-items:center;gap:6px;background:#1776df;color:#fff}.document-selected-file button{min-height:30px;padding:0 8px;font-size:10px}.document-selected-file button:last-child{width:32px;min-height:30px}.document-detail-note{margin:8px 0 0;padding:9px 12px;border:1px solid #e5eadf;border-radius:10px;background:#f4f8f1;color:#5c6f61;font-size:11px;line-height:1.7;white-space:pre-wrap;overflow-wrap:anywhere}.document-upload textarea{width:100%;min-height:52px;padding:9px 11px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--ink);font:12px/1.6 DM Sans,PingFang SC,sans-serif;resize:vertical}.document-detail-tools{display:flex;gap:8px}.document-edit-button{height:34px;display:inline-flex;align-items:center;gap:5px;padding:0 12px;border:0;border-radius:9px;background:#e3f3eb;color:#256b51;font-size:11px;font-weight:700;cursor:pointer}.note-section-title{margin-top:-2px;font-size:11px;font-weight:700;color:#52675b}.document-upload-actions+.image-previews{margin-top:10px}.document-upload-actions .document-upload-option{min-height:84px}.note-upload-file{min-height:84px;justify-content:center;align-items:center;text-align:center}.document-selected-file small{flex:none;color:var(--muted);font-size:9px}.document-selected-file a{flex:none;min-height:30px;display:inline-flex;align-items:center;padding:0 8px;border:0;border-radius:6px;background:#eef6f1;color:var(--green);font-size:10px;font-weight:700;text-decoration:none}.document-selected-file .document-page-order button{min-height:24px}.document-selected-file .document-file-thumb{width:40px;height:46px;padding:0;background:#eef3ed}.chat-list-screen .chat-search{height:42px;display:flex;align-items:center;gap:8px;margin:0 0 12px;padding:0 12px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--muted)}.chat-list-screen .chat-search input{width:100%;min-width:0;border:0;outline:0;font:inherit;font-size:11px;background:transparent;color:var(--ink)}.chat-search-clear{width:26px;height:26px;flex:none;display:grid;place-items:center;border:0;border-radius:8px;background:#eef2ee;color:#7c8b81}.chat-list-screen .chat-row-actions{flex:none;display:flex;align-items:center;gap:6px}.chat-list-screen .chat-row-rename{width:36px;height:36px;flex:none;display:grid;place-items:center;border:1px solid #d8e5da;border-radius:9px;background:#fff;color:#4d8060}.chat-header-actions{display:inline-flex;align-items:center;gap:8px}.chat-rename{width:36px;height:36px;flex:none;display:grid;place-items:center;border:1px solid #d8e5da;border-radius:12px;background:#fff;color:#4d8060}.chat-rename:focus-visible,.chat-search-clear:focus-visible,.chat-row-rename:focus-visible{outline:3px solid #167d7060;outline-offset:2px}.explanation-actions .explanation-followup-action{flex:1;min-width:0;color:#3e8768;background:#f2f8f2;border:1px solid #cddfd2;box-shadow:0 1px 2px #203d3708}.explanation-actions .explanation-save-action{flex:1;min-width:0}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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) format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,math,Times New Roman,serif;line-height:1.2;position:relative;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.19.1"}.katex .katex-mathml{border:0;-webkit-clip-path:inset(50%);clip-path:inset(50%);height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.katex-newline{display:block}.katex .katex-base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .katex-base,.katex .katex-strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .katex-vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .katex-thinbox{display:inline-flex;flex-direction:row;max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .katex-hdashline,.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-rule,.katex .katex-underline .underline-line,.katex .mfrac .frac-line{min-height:1px}.katex .mspace{display:inline-block}.katex .katex-smash{display:inline;line-height:0}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.katex-inner,.katex .llap>.katex-inner,.katex .rlap>.katex-inner{position:absolute}.katex .clap>.katex-fix,.katex .llap>.katex-fix,.katex .rlap>.katex-fix{display:inline-block}.katex .llap>.katex-inner{right:0}.katex .clap>.katex-inner,.katex .rlap>.katex-inner{left:0}.katex .clap>.katex-inner>span{margin-left:-50%;margin-right:50%}.katex .katex-rule{border:0 solid;display:inline-block;position:relative}.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .katex-hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.katex-root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .katex-sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .katex-sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .katex-sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .katex-sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .katex-sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .katex-sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .katex-sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .katex-sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .katex-sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .katex-sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .katex-sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .katex-sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .katex-sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .katex-sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .katex-sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .katex-sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .katex-sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .katex-sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .katex-sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .katex-sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .katex-sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .katex-sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .katex-sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .katex-sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .katex-sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .katex-sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .katex-sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .katex-sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .katex-sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .katex-sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .katex-sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .katex-sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .katex-sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .katex-sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .katex-sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .katex-sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .katex-sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .katex-sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .katex-sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .katex-sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .katex-sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .katex-sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .katex-sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .katex-sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .katex-sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .katex-sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .katex-sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .katex-sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .katex-sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .katex-sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .katex-sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .katex-sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .katex-sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .katex-sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .katex-sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .katex-sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .katex-sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .katex-sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .katex-sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .katex-sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .katex-sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .katex-sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .katex-sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .katex-sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .katex-sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .katex-sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .katex-sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .katex-sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .katex-sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .katex-sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .katex-sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .katex-sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .katex-sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .katex-sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .katex-sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .katex-sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .katex-sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .katex-sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .katex-sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .katex-sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .katex-sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .katex-sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .katex-sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .katex-sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .katex-sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .katex-sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .katex-sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .katex-sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .katex-sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .katex-sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .katex-sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .katex-sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .katex-sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .katex-sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .katex-sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .katex-sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .katex-sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .katex-sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .katex-sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .katex-sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .katex-sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .katex-sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .katex-sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .katex-sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .katex-sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .katex-sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .katex-sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .katex-sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .katex-sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .katex-sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .katex-sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .katex-sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .katex-sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .katex-sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .katex-sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .katex-sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .katex-sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .katex-sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .katex-sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .katex-sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .katex-sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .katex-accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .katex-accent .accent-body{position:relative}.katex .katex-accent .accent-body:not(.accent-full){width:0}.katex .katex-overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .katex-stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .katex-stretchy:after,.katex .katex-stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .katex-sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .reflectbox{display:inline-block;transform:scaleX(-1)}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.katex-tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.katex-tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}.admin-app{--admin-ink:#1d352f;--admin-muted:#6f7c75;--admin-line:#e2e8e2;--admin-paper:#fbfcfa;min-height:100dvh;background:#f1f4f0;color:var(--admin-ink);font-family:DM Sans,PingFang SC,Noto Sans SC,sans-serif}.admin-loading{min-height:100dvh;display:grid;place-items:center;color:#61726a;background:#f6f8f5;font-size:13px}.admin-tree-group{border:1px solid var(--admin-line);border-radius:10px;background:#fff;overflow:hidden}.admin-tree-group>.admin-tree-row{background:#f7faf6}.admin-tree-icon{width:18px;color:#49876e;font-size:15px}.admin-knowledge-tree+.admin-knowledge-tabs{margin-top:8px}.admin-login{width:min(calc(100% - 32px),420px);margin:9vh auto 0;padding:36px;background:#fff;border:1px solid #e6ebe5;border-radius:14px;box-shadow:0 20px 70px #253d3410}.admin-login-mark{width:46px;height:46px;display:grid;place-items:center;border-radius:12px;background:#e5f1e8;color:#257258}.admin-kicker{margin:0 0 8px;color:#59816e;font-size:10px;font-weight:750;letter-spacing:1px}.admin-login>.admin-kicker{margin-top:23px}.admin-login h1{margin:0;font:650 27px/1.3 "Noto Serif SC",Songti SC,serif}.admin-login>p:not(.admin-kicker){margin:8px 0 25px;color:var(--admin-muted);font-size:13px}.admin-login form,.admin-form{display:grid;gap:15px}.admin-login label,.admin-form label{display:grid;gap:7px;color:#40564c;font-size:12px;font-weight:650}.admin-login input,.admin-form input,.admin-form textarea{width:100%;min-width:0;min-height:43px;padding:10px 12px;border:1px solid #dce4dd;border-radius:8px;background:#fff;color:var(--admin-ink);font:13px inherit}.admin-primary{min-height:42px;display:flex;align-items:center;justify-content:center;gap:9px;padding:0 16px;border:0;border-radius:8px;background:#21745b;color:#fff;font-size:12px;font-weight:700;cursor:pointer}.admin-primary:disabled{opacity:.55}.admin-login .admin-primary{margin-top:5px}.admin-error,.admin-banner-error{padding:10px 12px;border:1px solid #f0d6cc;border-radius:8px;background:#fff5f1;color:#9a4c3b;font-size:12px}.admin-app{display:grid;grid-template-columns:232px minmax(0,1fr)}.admin-sidebar{position:sticky;top:0;height:100dvh;display:flex;flex-direction:column;padding:22px 14px;background:#fff;border-right:1px solid var(--admin-line)}.admin-brand{display:flex;align-items:center;gap:10px;padding:0 9px 23px;border-bottom:1px solid var(--admin-line)}.admin-brand>span{width:36px;height:36px;display:grid;place-items:center;border-radius:10px;background:#24735d;color:#fff;font:700 18px "Noto Serif SC",serif}.admin-brand strong,.admin-brand small{display:block}.admin-brand strong{font-size:13px}.admin-brand small{margin-top:3px;color:#89958e;font-size:8px;letter-spacing:1px}.admin-sidebar nav{display:grid;gap:5px;padding-top:18px}.admin-sidebar nav button{min-height:43px;display:flex;align-items:center;gap:11px;padding:0 12px;border:0;border-radius:8px;background:transparent;color:#6d7973;text-align:left;font-size:12px;cursor:pointer}.admin-sidebar nav button.selected{background:#eaf3ed;color:#236b52;font-weight:700}.admin-sidebar-user{display:flex;align-items:center;gap:9px;margin-top:auto;padding:14px 5px 2px;border-top:1px solid var(--admin-line);font-size:11px}.admin-sidebar-user>span{min-width:0;flex:1}.admin-sidebar-user small{display:block;margin-top:3px;color:var(--admin-muted);font-size:9px}.admin-sidebar-user button{width:32px;height:32px;display:grid;place-items:center;border:0;border-radius:7px;background:#f4f6f3;color:#68766e}.admin-main{min-width:0;padding:0 34px 48px}.admin-topbar{min-height:92px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--admin-line)}.admin-topbar h1{margin:0;font:650 23px/1.25 "Noto Serif SC",Songti SC,serif}.admin-user-chip{display:flex;align-items:center;gap:9px;color:#51645a;font-size:11px}.admin-user-chip span{width:30px;height:30px;display:grid;place-items:center;border-radius:50%;background:#dcece1;color:#286a52;font-weight:700}.admin-content{max-width:1440px;margin:23px auto 0}.admin-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-bottom:18px}.admin-metrics>div{min-width:0;display:flex;flex-direction:column;gap:7px;padding:15px 17px;border:1px solid var(--admin-line);border-radius:9px;background:#fff}.admin-metrics small{color:var(--admin-muted);font-size:10px}.admin-metrics strong{font:650 24px/1 DM Sans,sans-serif}.admin-metrics span{color:#7d8982;font-size:9px;overflow-wrap:anywhere}.admin-toolbar{display:flex;align-items:center;gap:9px;margin:16px 0 12px}.admin-search{height:38px;min-width:160px;max-width:420px;flex:1;display:flex;align-items:center;gap:8px;padding:0 11px;border:1px solid var(--admin-line);border-radius:8px;background:#fff;color:#78867e}.admin-search input{width:100%;min-width:0;border:0;outline:0;background:transparent;font:12px inherit}.admin-toolbar select,.admin-record-actions select{height:38px;padding:0 10px;border:1px solid var(--admin-line);border-radius:8px;background:#fff;color:#41554a;font:11px inherit}.admin-refresh{height:38px;padding:0 13px;border:1px solid var(--admin-line);border-radius:8px;background:#fff;color:#436454;font-size:11px}.admin-table-wrap{overflow:auto;border:1px solid var(--admin-line);border-radius:9px;background:#fff}.admin-table-wrap table{width:100%;min-width:870px;border-collapse:collapse;text-align:left}.admin-table-wrap th{height:40px;padding:0 13px;background:#f7f9f6;color:#738078;font-size:10px;font-weight:650;white-space:nowrap}.admin-table-wrap td{max-width:260px;padding:12px 13px;border-top:1px solid #edf0ec;color:#52635a;font-size:10px;line-height:1.55;overflow-wrap:anywhere}.admin-table-wrap td strong,.admin-table-wrap td small{display:block}.admin-table-wrap td strong{color:#2a4037;font-size:11px}.admin-table-wrap td small{margin-top:3px;color:#86918b;font-size:9px}.admin-table-wrap td:nth-child(5){min-width:230px}.status-active,.status-off{display:inline-block;width:7px;height:7px;margin-right:6px;border-radius:50%;background:#36a173}.status-off{background:#c5755d}.admin-link{padding:4px 0;border:0;background:none;color:#27745c;font-size:10px;font-weight:700;white-space:nowrap}.admin-empty{padding:38px 16px;color:#849088;text-align:center;font-size:12px}.admin-pagination{display:flex;align-items:center;justify-content:space-between;padding:13px 3px;color:#758179;font-size:10px}.admin-pagination>div{display:flex;align-items:center;gap:11px}.admin-pagination button{width:30px;height:30px;display:grid;place-items:center;border:1px solid var(--admin-line);border-radius:7px;background:#fff;color:#536b5c}.admin-pagination button:disabled{opacity:.4}.knowledge-metrics>div{min-height:94px}.admin-knowledge-tabs{display:flex;align-items:center;gap:5px;margin:22px 0 11px;border-bottom:1px solid var(--admin-line)}.admin-knowledge-tabs>button:not(.admin-primary){min-height:40px;padding:0 14px;border:0;border-bottom:2px solid transparent;background:transparent;color:#728078;font-size:11px}.admin-knowledge-tabs>button.selected:not(.admin-primary){border-bottom-color:#27765c;color:#286e54;font-weight:700}.admin-knowledge-tabs .admin-primary{margin-left:auto}.admin-primary.small{min-height:34px;padding:0 11px;font-size:10px}.admin-record-list{overflow:hidden;border:1px solid var(--admin-line);border-radius:9px;background:#fff}.admin-record{min-height:76px;display:flex;align-items:center;gap:15px;padding:13px 15px;border-bottom:1px solid #edf0ec}.admin-record:last-child{border-bottom:0}.admin-record-main{min-width:0;flex:1}.admin-record-main strong,.admin-record-main span,.admin-record-main small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.admin-record-main strong{font-size:12px}.admin-record-main span{margin-top:4px;color:#566b60;font-size:10px}.admin-record-main small{margin-top:4px;color:#89948d;font-size:9px}.admin-status{padding:5px 8px;border-radius:5px;background:#f1f2ef;color:#68756e;font-size:9px;white-space:nowrap}.status-draft{background:#fff5df;color:#967333}.status-reviewed{background:#eaf2fa;color:#486c91}.status-published{background:#e4f3e9;color:#267451}.status-rejected{background:#faece8;color:#a35142}.status-archived{background:#eff0ef;color:#7b827e}.admin-overlay{position:fixed;z-index:30;top:0;right:0;bottom:0;left:0;display:flex;justify-content:flex-end;background:#14231d65}.admin-drawer{width:min(100%,520px);height:100%;overflow:auto;padding:24px 25px calc(26px + env(safe-area-inset-bottom));background:#fff;box-shadow:-16px 0 50px #13241d24}.admin-drawer>header{display:flex;justify-content:space-between;align-items:flex-start;padding-bottom:18px;border-bottom:1px solid var(--admin-line)}.admin-drawer h2{margin:0;font:650 20px "Noto Serif SC",Songti SC,serif}.admin-drawer header button{width:34px;height:34px;display:grid;place-items:center;border:1px solid var(--admin-line);border-radius:8px;background:#fff}.admin-drawer dl{display:grid;gap:0;margin:12px 0}.admin-drawer dl>div{display:grid;grid-template-columns:100px minmax(0,1fr);gap:14px;padding:12px 0;border-bottom:1px solid #edf0ec}.admin-drawer dt{color:#7a867f;font-size:10px}.admin-drawer dd{margin:0;color:#2d4338;font-size:11px;overflow-wrap:anywhere}.admin-count-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:18px 0}.admin-count-grid>div{display:grid;gap:6px;padding:11px 8px;border-radius:7px;background:#f3f7f3;text-align:center}.admin-count-grid small{color:#708077;font-size:9px}.admin-count-grid strong{font-size:17px}.admin-drawer-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:20px}.admin-drawer-actions button{min-height:38px;border:1px solid var(--admin-line);border-radius:7px;background:#fff;color:#416250;font-size:10px}.admin-drawer-actions .danger{grid-column:1/-1;border-color:#efd5ce;color:#a64f3e}.admin-form{margin-top:18px}.admin-form textarea{resize:vertical}.admin-toast{position:fixed;z-index:50;right:22px;bottom:22px;padding:12px 16px;border-radius:8px;background:#254c3c;color:#fff;font-size:11px;box-shadow:0 10px 30px #1a302633}@media (max-width:760px){.admin-app{display:flex;flex-direction:column}.admin-sidebar{position:static;width:100%;height:auto;display:block;padding:10px 14px 0;border-right:0;border-bottom:1px solid var(--admin-line)}.admin-brand{padding:0 4px 9px;border-bottom:0}.admin-brand>span{width:30px;height:30px}.admin-brand strong{font-size:12px}.admin-brand small{display:none}.admin-sidebar nav{grid-template-columns:1fr 1fr;gap:4px;padding:0 0 8px}.admin-sidebar nav button{min-height:35px;justify-content:center;font-size:10px}.admin-sidebar-user{position:absolute;top:10px;right:10px;margin:0;padding:0;border:0}.admin-sidebar-user>svg,.admin-sidebar-user>span{display:none}.admin-sidebar-user button{background:transparent}.admin-main{padding:0 14px 30px}.admin-topbar{min-height:72px}.admin-topbar h1{font-size:19px}.admin-user-chip{display:none}.admin-content{margin-top:14px}.admin-metrics{gap:7px}.admin-metrics>div{padding:11px 10px}.admin-metrics strong{font-size:20px}.admin-toolbar{display:grid;grid-template-columns:1fr 1fr}.admin-search{grid-column:1/-1;max-width:none}.admin-toolbar select,.admin-refresh{width:100%;min-width:0}.admin-table-wrap table{min-width:850px}.admin-knowledge-tabs{gap:0}.admin-knowledge-tabs>button:not(.admin-primary){padding:0 9px;font-size:10px}.admin-knowledge-tabs .admin-primary{padding:0 8px;gap:5px}.admin-record{align-items:flex-start;flex-wrap:wrap;gap:8px}.admin-record-main{flex-basis:calc(100% - 96px)}.admin-record-actions{width:100%;display:flex;justify-content:flex-end}.admin-record-actions select{height:34px}.admin-overlay{align-items:flex-end}.admin-drawer{width:100%;height:min(91dvh,850px);border-radius:15px 15px 0 0;padding:18px 17px calc(20px + env(safe-area-inset-bottom))}.admin-count-grid{grid-template-columns:repeat(2,1fr)}.admin-toast{right:12px;bottom:calc(12px + env(safe-area-inset-bottom));left:12px;text-align:center}}.admin-tree-row{min-height:44px;display:flex;align-items:center;gap:9px;padding:8px 14px;padding-left:calc(14px + (var(--tree-depth,0) * 24px));border-bottom:1px solid #edf0ec}.admin-tree-grade{border:1px solid var(--admin-line);border-radius:9px;background:#fff;overflow:hidden}.admin-tree-grade>.admin-tree-row{background:#edf5ef}.admin-tree-subject{margin-left:16px;border-left:2px solid #dce9df}.admin-tree-subject>.admin-tree-row{background:#f8faf7}.admin-tree-group{margin-left:16px;border-bottom:1px solid #edf0ec;background:#fff}.admin-tree-row strong{min-width:120px;font-size:12px}.admin-tree-row small{flex:1;min-width:0;color:#78857d;font-size:10px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.admin-tree-toggle{width:23px;height:23px;display:grid;place-items:center;padding:0;border:0;border-radius:5px;background:#eaf2eb;color:#27735a;font-size:15px;cursor:pointer}.admin-tree-icon{width:18px;color:#49876e}.admin-tree-row.topic{background:#fcfdfb}.admin-tree-row.topic strong{font-weight:550}.admin-tree-status{height:29px;padding:0 7px;border:1px solid var(--admin-line);border-radius:6px;background:#fff;color:#53675c;font-size:10px}.admin-knowledge-tree{display:grid;gap:10px;margin:22px 0 14px}.admin-knowledge-legacy{display:none}.admin-knowledge-tree{display:grid;gap:8px;margin:24px 0;min-width:0}.admin-tree-grade{border:1px solid #dce5df;border-radius:8px;background:#fff;overflow:hidden}.admin-tree-row{box-sizing:border-box;min-width:0;min-height:48px;display:flex;align-items:center;gap:10px;padding:9px 16px;padding-left:calc(16px + (var(--tree-depth,0) * 20px));border:0;border-bottom:1px solid #edf1ee;text-align:left}button.admin-tree-row{width:100%;font:inherit;cursor:pointer;color:inherit}button.admin-tree-row:hover{background:#edf5f0}.admin-tree-grade>.admin-tree-row{background:#f4f8f5}.admin-tree-grade>.admin-tree-row strong{font-size:14px;color:#203d31}.admin-tree-chevron{flex:none;color:#6a8073;transition:transform .15s ease}.admin-tree-chevron.expanded{transform:rotate(90deg)}.admin-tree-icon{display:grid;place-items:center;flex:none;width:22px;color:#44876a}.admin-tree-row strong{min-width:0;font-size:13px;overflow-wrap:anywhere}.admin-tree-row small{flex:1;min-width:0;color:#77877d;font-size:11px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.admin-tree-subject{margin-left:20px;border-left:1px solid #dce8df}.admin-tree-subject>.admin-tree-row{background:#fbfcfb}.admin-tree-group{margin-left:18px;border:0;border-left:1px solid #e3eae5;border-radius:0;background:#fff;overflow:visible}.admin-tree-row.edition{background:#fff}.admin-tree-toggle{flex:none;width:24px;height:24px;display:grid;place-items:center;padding:0;border:0;border-radius:5px;background:#edf5ef;color:#327957;cursor:pointer}.admin-tree-toggle:disabled{background:transparent;color:#a5b1aa;cursor:default}.admin-tree-row.topic{background:#fcfdfc}.admin-tree-row.topic strong{font-weight:500}.admin-tree-status{flex:none;height:30px;padding:0 7px;border:1px solid #dce5df;border-radius:5px;background:#fff;color:#53675c;font-size:11px}.admin-tree-unlinked{margin:12px 16px 12px 34px;color:#66786c;font-size:12px}.admin-tree-unlinked>.admin-tree-row{margin-top:4px}.admin-tree-volume{margin-left:18px;border-left:1px solid #e3eae5}.admin-tree-volume>.admin-tree-row.volume{background:#f8faf8;color:#385e4d}.admin-tree-volume>.admin-tree-row.volume:hover{background:#edf5f0}.admin-tree-row button:focus-visible,.admin-tree-row:focus-visible,.admin-tree-status:focus-visible{outline:2px solid #318866;outline-offset:-2px}@media (max-width:600px){.admin-tree-row{gap:6px;padding:9px 10px;padding-left:calc(10px + (var(--tree-depth,0) * 10px));flex-wrap:wrap}.admin-tree-row strong{flex:1 1 100px}.admin-tree-row small{flex:1 1 100%;padding-left:30px;white-space:normal}.admin-tree-subject{margin-left:10px}.admin-tree-group{margin-left:8px}.admin-tree-unlinked{margin-left:12px}.admin-tree-row .admin-link{margin-left:auto}}.admin-metrics.four{grid-template-columns:repeat(4,minmax(0,1fr))}.admin-metrics strong.warn{color:#b4553f}.admin-grid.two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-bottom:14px}.admin-grid.two>.admin-panel{min-width:0}.admin-panel{overflow:hidden;border:1px solid var(--admin-line);border-radius:10px;background:#fff}.admin-panel>header{min-height:52px;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:0 16px;border-bottom:1px solid #edf0ec}.admin-panel h2{margin:0;font:650 13px/1.4 "Noto Serif SC",Songti SC,serif}.admin-panel .admin-empty{width:100%}.admin-chip{display:inline-flex;align-items:center;gap:4px;min-height:24px;padding:0 8px;border-radius:6px;background:#eef1ee;color:#64726b;font-size:10px;font-weight:650;white-space:nowrap}.admin-chip.queued,.admin-chip.validated{background:#f2f4f1;color:#7a857e}.admin-chip.processing,.admin-chip.running{background:#e8f1fa;color:#3f6f9a}.admin-chip.organizing{background:#eef2f6;color:#5f7181}.admin-chip.completed{background:#e4f3e9;color:#267451}.admin-chip.partial{background:#fff3df;color:#a1762d}.admin-chip.failed{background:#faece8;color:#a35142}.admin-chip.ai-processing{background:#f3eefb;color:#7351a3}.admin-chip.ai-completed{background:#e4f3e9;color:#267451}.admin-chip.ai-failed{background:#faece8;color:#a35142}.admin-chip.linkable{border:1px solid #e6c9c1;background:#fff7f4;color:#a35142;cursor:pointer}.admin-chip.linkable:hover{background:#fdf0eb}.admin-health{display:grid;gap:0}.admin-health-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 16px;border-bottom:1px solid #edf0ec}.admin-health-row:last-child{border-bottom:0}.admin-health-row>strong{min-width:96px;font-size:11px;color:#2a4037}.admin-health-row>div{display:flex;flex-wrap:wrap;gap:6px;justify-content:flex-end}.admin-trend{padding:16px 16px 14px}.admin-trend-legend{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:14px;color:#6c7972;font-size:10px}.admin-trend-legend span{display:inline-flex;align-items:center;gap:5px}.admin-trend-legend i{width:9px;height:9px;border-radius:2px}.admin-trend-chart{height:138px;display:flex;gap:5px;align-items:stretch}.admin-trend-col{flex:1;min-width:0;display:grid;grid-template-rows:1fr auto;gap:7px}.admin-trend-col small{color:#8a958e;font-size:8px;text-align:center;white-space:nowrap}.admin-trend-bars{display:grid;grid-template-columns:repeat(4,1fr);align-items:end;gap:3px;padding-left:2px}.admin-trend-bars i{display:block;width:100%;min-height:0;border-radius:2px 2px 0 0;opacity:.9}.admin-kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;padding:14px 16px}.admin-kpis>div{min-width:0;display:grid;gap:6px;padding:11px 9px;border-radius:8px;background:#f3f7f3;text-align:center}.admin-kpis small{color:#708077;font-size:9px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.admin-kpis strong{font:650 17px/1 DM Sans,sans-serif}.admin-kpis strong.warn{color:#b4553f}.admin-activity{display:grid;gap:0;margin:0;padding:0;list-style:none}.admin-activity li{display:flex;align-items:center;gap:10px;min-width:0;padding:11px 16px;border-bottom:1px solid #edf0ec}.admin-activity li:last-child{border-bottom:0}.admin-activity li>div{min-width:0;flex:1}.admin-activity li>div strong,.admin-activity li>div small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.admin-activity li>div strong{font-size:11px;color:#2a4037}.admin-activity li>div small{margin-top:2px;color:#7d8982;font-size:9px}.admin-activity time{color:#98a39c;font-size:9px;white-space:nowrap}.admin-activity-dot{width:8px;height:8px;flex:none;border-radius:50%;background:#98a8a0}.admin-activity-dot.created{background:#2f8f69}.admin-activity-dot.reviewed{background:#c08a3e}.admin-activity-dot.updated{background:#4e8ba0}.admin-activity-dot.archived{background:#7a6ca8}.admin-activity-dot.deleted{background:#c5755d}.admin-activity-dot.restored{background:#3e9a93}.admin-tabs{display:flex;gap:4px;margin-bottom:16px;border-bottom:1px solid var(--admin-line)}.admin-tabs button{min-height:38px;padding:0 15px;border:0;border-bottom:2px solid transparent;background:transparent;color:#748179;font-size:11px;cursor:pointer}.admin-tabs button.selected{border-bottom-color:#27765c;color:#286e54;font-weight:700}.admin-table-wrap td.cell-error{color:#a35142}.admin-dim{color:#9aa49e;font-size:10px}.admin-audit-json{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:8px}.admin-audit-json pre{margin:0;min-width:0;max-height:300px;overflow:auto;padding:11px 12px;border:1px solid #e3e9e3;border-radius:8px;background:#f7f9f6;color:#40554a;font:10px/1.6 ui-monospace,SFMono-Regular,Menlo,monospace;white-space:pre-wrap;overflow-wrap:anywhere}.admin-audit-json pre b{display:block;margin-bottom:6px;color:#718078;font-size:10px}.admin-audit-json>pre:only-child{grid-column:1/-1}@media (max-width:980px){.admin-metrics.four{grid-template-columns:repeat(2,minmax(0,1fr))}.admin-grid.two{grid-template-columns:minmax(0,1fr)}.admin-kpis{grid-template-columns:repeat(2,1fr)}.admin-health-row{align-items:flex-start;flex-direction:column;gap:8px}.admin-health-row>div{justify-content:flex-start}}@media (max-width:760px){.admin-audit-json{grid-template-columns:minmax(0,1fr)}}.stats-entry{width:100%;display:flex;align-items:center;gap:12px;margin:20px 0 0;padding:16px;border:1px solid #dce7db;border-radius:14px;background:#f0f5ed;color:var(--ink);text-align:left}.stats-entry>svg:first-child{color:var(--green);flex:none}.stats-entry>span{flex:1;min-width:0}.stats-entry strong,.stats-entry small{display:block}.stats-entry strong{font-size:13px}.stats-entry small{margin-top:5px;font-size:11px;color:var(--muted)}.stats-entry>svg:last-child{flex:none;color:var(--green)}.statistics-screen{min-width:0;padding-bottom:28px}.stats-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:22px 0}.stats-heading .eyebrow{margin-top:0}.stats-heading .page-title{margin-top:5px}.stats-refresh{flex:none}.statistics-screen button:focus-visible,.statistics-screen select:focus-visible,.statistics-screen summary:focus-visible,.stats-entry:focus-visible{outline:2px solid var(--green);outline-offset:3px}.stats-student-select{display:grid;gap:8px;margin:16px 0;font-size:12px;font-weight:650}.statistics-screen select{min-width:0;width:100%;max-width:100%;min-height:42px;padding:8px 10px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--ink);font:inherit;font-size:12px;text-overflow:ellipsis}.stats-toolbar{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.stats-periods{display:flex;flex:1;min-width:218px;padding:4px;background:#eaf0e7;border-radius:10px}.stats-periods button{flex:1;min-height:36px;border:0;border-radius:7px;background:transparent;color:#6c7e70;font-size:12px;white-space:nowrap}.stats-periods button.active{background:#fff;color:var(--green);box-shadow:0 1px 4px #2f503719;font-weight:700}.stats-subject{flex:1;min-width:110px;max-width:230px}.stats-range{margin:14px 0 24px;font-size:11px;color:var(--muted);line-height:1.7}.stats-range span{display:block}.stats-section-title{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px;min-width:0}.stats-section-title h2,.stats-section-title h3{margin:0;font-size:14px;font-weight:700;line-height:1.5}.stats-section-title>span{color:var(--muted);font-size:10px;text-align:right;flex-shrink:0}.stats-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.stats-metrics article{padding:17px 15px;border:1px solid #e0e7db;border-radius:12px;background:#fbfcf8}.stats-metrics article:first-child{background:#eaf2e4;border-color:#d9e4d2}.stats-metrics small{display:block;color:#6b7c6c;font-size:11px}.stats-metrics strong{display:block;margin-top:10px;font-size:30px;font-weight:600;line-height:1;font-variant-numeric:tabular-nums;letter-spacing:-1px}.stats-metrics strong span{margin-left:7px;font-size:10px;color:#7b877b;font-weight:400;letter-spacing:0}.stats-current{margin:16px 0 24px;padding:17px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.stats-current>div{display:flex;align-items:center;flex-wrap:wrap;gap:7px}.stats-current strong{font-size:12px}.stats-current small{font-size:10px;color:var(--muted)}.stats-live-dot{width:6px;height:6px;border-radius:50%;background:#6c9364}.stats-current dl{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));margin:18px 0 0}.stats-current dl>div+div{border-left:1px solid var(--line);padding-left:18px}.stats-current dt{font-size:11px;color:var(--muted)}.stats-current dd{margin:7px 0 0;font-size:23px;font-variant-numeric:tabular-nums}.stats-card{min-width:0;margin:14px 0;padding:18px 16px;border:1px solid var(--line);border-radius:14px;background:#fff}.stats-card h3{margin:0;font-size:14px}.stats-caption{margin:10px 0;color:var(--muted);font-size:10px;line-height:1.8;overflow-wrap:anywhere}.stats-legend{display:flex;align-items:center;flex-wrap:wrap;gap:12px;font-size:10px;color:var(--muted)}.stats-legend>span{display:flex;align-items:center;gap:6px}.stats-legend i{width:8px;height:8px;border-radius:50%;background:#2c7558}.stats-legend>span:nth-child(2) i{background:#bc7a47}.stats-legend small{font-size:9px}.stats-trend{display:block;width:100%;height:auto;margin-top:18px;overflow:visible}.stats-trend text{font:11px sans-serif;fill:#718072}.stats-empty{margin:0;padding:28px 6px;color:var(--muted);text-align:center;font-size:12px;line-height:1.8;overflow-wrap:anywhere}.stats-table-details{margin-top:12px;font-size:11px;color:var(--muted)}.stats-table-details summary{cursor:pointer;min-height:32px;line-height:32px}.stats-table-details table{width:100%;border-collapse:collapse;table-layout:fixed;font-size:11px}.stats-table-details td,.stats-table-details th{padding:9px 3px;border-bottom:1px solid var(--line);text-align:right;overflow-wrap:anywhere;font-weight:400}.stats-table-details th:first-child{text-align:left}.stats-bars{margin:0;padding:0;list-style:none}.stats-bars li{margin:18px 0}.stats-bars li>div:first-child{display:flex;justify-content:space-between;gap:8px;font-size:11px}.stats-bars strong{font-size:11px;font-weight:600;white-space:nowrap}.stats-bars small{margin-left:9px;color:var(--muted);font-size:10px;font-weight:400}.stats-track{height:6px;margin-top:9px;background:#edf2eb;border-radius:6px;overflow:hidden}.stats-track i{display:block;height:100%;background:#639975;border-radius:6px}.rating-fuzzy .stats-track i,.rating-prompted_correct .stats-track i{background:#c69c53}.rating-unknown .stats-track i,.rating-incorrect .stats-track i{background:#c17c65}.stats-knowledge{margin-top:28px;padding-top:10px}.stats-scope-filters{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:16px 0}.stats-scope-filters label{min-width:0;display:grid;gap:7px;font-size:11px;color:var(--muted)}.stats-scope-filters label:first-child{grid-column:1/-1}.stats-kind{display:flex;gap:6px;margin:12px 0}.stats-kind button{min-height:36px;min-width:76px;border:1px solid var(--line);border-radius:7px;background:#fff;color:var(--muted);font-size:11px}.stats-kind button[aria-pressed=true]{background:#edf4e8;color:var(--green);border-color:#cdddc6}.stats-attention-list{margin:0;padding:0;list-style:none}.stats-attention-list>li{display:grid;grid-template-columns:22px minmax(0,1fr);gap:8px;padding:18px 0;border-bottom:1px solid var(--line)}.stats-attention-list>li:last-child{border-bottom:0}.stats-rank{color:#90a089;font-size:13px;padding-top:2px;font-variant-numeric:tabular-nums}.stats-topic-title{display:flex;align-items:center;flex-wrap:wrap;gap:6px;min-width:0}.stats-topic-title h4{margin:0;font-size:12px;line-height:1.65;overflow-wrap:anywhere}.stats-badge{padding:3px 6px;border-radius:4px;background:#f4f0e7;color:#8b7650;font-size:9px;white-space:nowrap}.stats-topic-path{margin:7px 0 12px;color:var(--muted);font-size:10px;line-height:1.8;overflow-wrap:anywhere}.stats-topic-counts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:0}.stats-topic-counts dt{font-size:10px;color:var(--muted)}.stats-topic-counts dd{margin:5px 0 0;font-size:16px;font-variant-numeric:tabular-nums}.stats-topic-counts>div:last-child dd{color:#ad7651}.stats-show-more{display:flex;align-items:center;justify-content:center;gap:6px;min-height:42px;width:100%;border:0;background:#f1f5ed;border-radius:8px;color:var(--green);font-size:11px}.stats-coverage{background:#f4f7ef;border-color:#dfe7d8}.stats-coverage>p{font-size:11px;line-height:1.9;color:#6e7c69}.stats-coverage dl{margin:18px 0 0}.stats-coverage dl>div{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px;padding:15px 0;border-top:1px solid #e1e7d9}.stats-coverage dt{font-size:11px;line-height:1.7}.stats-coverage small{display:block;margin-top:5px;font-size:10px;color:#7d8877;line-height:1.8;font-weight:400;overflow-wrap:anywhere}.stats-coverage dd{margin:0;font-size:16px;font-weight:600;font-variant-numeric:tabular-nums;line-height:1.7}.stats-coverage .stats-coverage-note{padding-top:12px;border-top:1px solid #e1e7d9;font-size:10px}.stats-footer{margin:20px 0 8px;color:var(--muted);font-size:10px;line-height:1.9;overflow-wrap:anywhere}.stats-error{margin:20px 0;padding:16px;border:1px solid #edd7c8;border-radius:10px;font-size:12px;background:#fff9f3}.stats-error .primary{min-height:40px}.stats-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media (min-width:900px){.shell.page-statistics{width:min(calc(100% - 48px),1020px);max-width:1020px}.page-statistics .bottom-nav{width:100%;max-width:none}.statistics-screen{padding:12px 22px 30px}.stats-metrics{grid-template-columns:repeat(4,minmax(0,1fr))}.stats-two-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.stats-two-columns .stats-card{margin:0}.stats-scope-filters{grid-template-columns:2fr 1fr 1.4fr}.stats-scope-filters label:first-child{grid-column:auto}.stats-topic-counts{grid-template-columns:repeat(4,minmax(0,1fr))}.stats-topic-counts dd{font-size:20px}.stats-trend{max-height:270px}.stats-range span{display:inline;margin-left:16px}}@media (max-width:359px){.stats-card{padding:16px 12px}.stats-section-title>span{font-size:9px}.stats-subject{max-width:none}.stats-periods{min-width:100%}.stats-current small{flex-basis:100%;margin-left:13px}.stats-coverage dl>div{grid-template-columns:1fr}.stats-current dl>div+div{padding-left:12px}}.stats-current dl{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.stats-repeated-list{margin:12px 0 0;padding:0;list-style:none}.stats-repeated-list li{display:flex;align-items:center;gap:12px;padding:14px 0;border-top:1px solid var(--line)}.stats-repeated-list li>div{flex:1;min-width:0}.stats-repeated-list strong{display:block;font-size:13px;line-height:1.6;overflow-wrap:anywhere}.stats-repeated-list small{display:block;margin-top:6px;font-size:11px;line-height:1.6;color:var(--muted)}.stats-repeated-list button{flex:none;min-height:40px;font-size:12px}@media (max-width:480px){.stats-current dl{grid-template-columns:repeat(2,minmax(0,1fr))}.stats-current dl>div+div{border:0;padding-left:0}.stats-repeated-list li{align-items:flex-start;flex-wrap:wrap}}html.learning-theme{--ink: #344a42;--muted: #748078;--line: #e6e9df;--green: #43846b;--paper: #fcfaf4;--card: #fffefa;--mint: #e7f2e6;--pink: #faece9;--blue: #eaf2f7;--yellow: #faf2dc;--lavender: #f0edf8;--radius: 22px;--soft-shadow: 0 5px 20px #647b5e09;background:#f1f2e9;color:var(--ink);font-family:DM Sans,PingFang SC,Microsoft YaHei,sans-serif}.learning-theme .shell,.learning-theme .auth-shell{background:var(--paper);box-shadow:0 12px 60px #52694d0c}.learning-theme .shell{padding-inline:22px}.learning-theme .topbar{height:80px;border-bottom:0;gap:12px}.learning-theme .brand{min-width:0;gap:10px}.learning-theme .brand>div{min-width:0}.learning-theme .brand small{overflow-wrap:anywhere;line-height:1.5}.learning-theme .brand-mark{background:#dfebd8;color:#527655;border-radius:14px;flex-shrink:0}.learning-theme .brand strong,.learning-theme .auth-brand strong{font-size:19px;font-weight:600}.learning-theme .top-actions{flex-shrink:0;gap:8px;flex-wrap:wrap;justify-content:flex-end;max-width:48%}.learning-theme .service-state{font-size:10px}.learning-theme .welcome{padding:23px 0 19px}.learning-theme .student-welcome{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:146px}.learning-theme .welcome-copy{min-width:0}.learning-theme .welcome-illustration{width:128px;height:128px;object-fit:contain;flex:none;margin:-10px -8px -14px 0}.learning-theme .review-illustration{width:132px;height:148px;flex:none;object-fit:contain;margin-right:-12px}.learning-theme .eyebrow{font-size:9px;letter-spacing:1.6px;color:#7d927c;margin-bottom:10px}.learning-theme .welcome h1,.learning-theme .page-title,.learning-theme .auth-content h1{font-family:PingFang SC,Microsoft YaHei,sans-serif;font-weight:650;letter-spacing:-.5px;overflow-wrap:anywhere}.learning-theme .welcome h1{font-size:27px;line-height:1.5}.learning-theme .intro{font-size:12px;line-height:1.8}.learning-theme .family-inline-notice{margin:3px 0 19px;padding:12px 14px;border:0;border-radius:14px;background:#f0f3e8;color:#71836c;font-size:10px;line-height:1.8}.learning-theme .review-band{min-height:202px;margin-top:0;padding:23px;border:1px solid #dfead8;border-radius:26px;background:#e7f1de;box-shadow:var(--soft-shadow);gap:10px}.learning-theme .review-band>div:first-child{min-width:0;flex:1}.learning-theme .review-band .label{font-size:14px;color:#536f52}.learning-theme .review-band .count{font:650 44px/1.2 DM Sans,sans-serif;color:#3e674a;margin-top:10px}.learning-theme .count small{font-size:12px;color:#64795f}.learning-theme .review-band p{font-size:11px;line-height:1.7;margin:8px 0 16px}.learning-theme .review-art{flex:none;width:85px;height:85px;border:0;background:#f6faec;color:#81a278;transform:rotate(-6deg)}.learning-theme .review-art>svg{width:43px;height:43px;stroke-width:1.4}.learning-theme .review-art span{background:#fff3ce;padding:5px 8px}.learning-theme .primary{min-height:42px;height:auto;padding:10px 16px;border-radius:14px;background:var(--green);font-size:12px;font-weight:600;justify-content:center;box-shadow:0 3px 8px #43846b12}.learning-theme button{cursor:pointer;-webkit-tap-highlight-color:transparent}.learning-theme button:disabled{cursor:not-allowed;opacity:.48;box-shadow:none}.learning-theme :is(button,a,input,select,textarea,summary):focus-visible{outline:3px solid #83ab93;outline-offset:3px}.learning-theme :is(.secondary,.icon-button,.back-button){border-radius:12px}.learning-theme .icon-button{min-width:36px;min-height:36px;background:#f1f4eb}.learning-theme .section-heading{margin-top:26px;margin-bottom:14px;gap:12px}.learning-theme .section-heading h2{font-size:16px;font-weight:650}.learning-theme .home-shortcuts,.learning-theme .parent-mode .home-shortcuts{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.learning-theme .home-shortcut{position:relative;min-height:122px;align-items:flex-start;padding:17px 16px;gap:5px;border-radius:var(--radius);border:1px solid #ffffff70;background:var(--pink);text-align:left;box-shadow:var(--soft-shadow)}.learning-theme .shortcut-note{background:var(--blue)}.learning-theme .shortcut-document{background:var(--yellow)}.learning-theme .shortcut-ai{background:var(--lavender)}.learning-theme .home-shortcut-icon{width:39px;height:39px;margin-bottom:4px;border:0;border-radius:12px;background:#ffffff90;box-shadow:none;transform:none}.learning-theme .home-shortcut-icon svg{width:29px;height:29px;stroke-width:2}.learning-theme .home-shortcut strong{font-size:13px;font-weight:650}.learning-theme .home-shortcut small{font-size:10px;line-height:1.6}.learning-theme .stats-entry{margin-top:16px;padding:17px;border:1px solid var(--line);border-radius:18px;background:#f3f6ec}.learning-theme .record-list{display:grid;gap:10px;border:0;background:transparent}.learning-theme :is(.record,.action,.document-library .document-row,.chat-history-row,.family-student){border:1px solid #e9ece2;border-radius:18px;background:var(--card);box-shadow:var(--soft-shadow)}.learning-theme .record{padding:16px 13px;min-height:78px}.learning-theme :is(.record-copy,.chat-history-copy,.document-row-copy){min-width:0}.learning-theme .record-copy strong{font-size:13px;line-height:1.6}.learning-theme .record-copy small{line-height:1.7;color:var(--muted)}.learning-theme .record-mark{border-radius:13px;background:#edf3e5;color:#738c68}.learning-theme .action{padding:16px;gap:13px}.learning-theme .action-icon{border-radius:13px;background:var(--blue)}.learning-theme .bottom-nav{width:min(100%,480px);border-top:1px solid #e8ecdf;background:#fffdf7f5;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);box-shadow:0 -5px 24px #6d806009;padding-top:9px;padding-bottom:calc(9px + env(safe-area-inset-bottom))}.learning-theme .bottom-nav button{min-height:48px;border-radius:15px;color:#8a9687;gap:5px}.learning-theme .bottom-nav button.active{color:#4d815c;background:#edf4e7}.learning-theme .bottom-nav svg{stroke-width:1.7}.learning-theme :is(.method-sheet,.question-meta-sheet,.knowledge-sheet,.confirm-sheet){border-radius:26px 26px 0 0;background:var(--paper);box-shadow:0 -8px 40px #384a3b14}.learning-theme .sheet-backdrop{background:#344a4257;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.learning-theme :is(.form-stack input,.form-stack textarea,.form-stack select,.search-box,.mistake-meta-fields select,.mistake-taxonomy-filters input,.stats-scope-filters select){border:1px solid #e0e6db;border-radius:13px;background:#fffefa;color:var(--ink)}.learning-theme :is(.form-stack input,.form-stack select){min-height:46px}.learning-theme :is(.filter-chip,.subject-tabs button,.parent-tabs button,.stats-kind button){border-radius:12px}.learning-theme .parent-tabs{border-radius:16px;padding:5px;background:#eef2e6}.learning-theme .parent-tabs button.active{background:#fffef9;color:#4d815c;box-shadow:var(--soft-shadow)}.learning-theme :is(.overview-grid article,.stats-metrics article,.stats-card,.family-notice,.editable-profile){border:1px solid var(--line);border-radius:var(--radius);background:var(--card);box-shadow:var(--soft-shadow)}.learning-theme .overview-grid article:first-child,.learning-theme .stats-metrics article:first-child{background:var(--mint)}.learning-theme .stats-metrics article:nth-child(2){background:var(--blue)}.learning-theme .stats-metrics article:nth-child(3){background:var(--pink)}.learning-theme .stats-metrics article:nth-child(4){background:var(--yellow)}.learning-theme .stats-coverage,.learning-theme .editable-profile{background:#f0f5e9}.learning-theme .chat-history-row{margin-bottom:10px;padding:10px}.learning-theme .chat-history-copy strong{font-size:12px}.learning-theme .chat-history-copy small{line-height:1.55;overflow-wrap:anywhere;white-space:normal;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2}.learning-theme .chat-row-delete{border-radius:12px;flex-shrink:0}.learning-theme .chat-history-icon{background:var(--lavender);color:#9086ab;border-radius:13px}.learning-theme .chat-composer{border-radius:20px;border-color:var(--line);background:#fffefa}.learning-theme :is(.empty-state,.parent-empty,.stats-empty){border-radius:18px;color:var(--muted);line-height:1.8}.learning-theme .empty-icon{background:#edf3e5;color:#839d76;border-radius:15px}.learning-theme :is(.inline-error,.form-error,.stats-error){border-radius:14px;color:#a35348;background:#fff0e9}.learning-theme .network-alert{background:#faf0d9;color:#806c43;line-height:1.6}.learning-theme .auth-brand{border-bottom-color:var(--line)}.learning-theme .auth-content{padding-top:42px}.learning-theme .auth-form{padding:23px;background:var(--card);border:1px solid var(--line);border-radius:24px;box-shadow:var(--soft-shadow)}.learning-theme .auth-login-shell{--auth-ink:#194b37;--auth-green:#267e50;--auth-muted:#71877d;display:flex;flex-direction:column;isolation:isolate;position:relative;width:min(100%,480px);min-height:100dvh;margin:0 auto;padding:calc(54px + env(safe-area-inset-top)) 16px calc(82px + env(safe-area-inset-bottom));overflow:hidden;background:#fbf8f3;color:var(--auth-ink)}.learning-theme .auth-login-shell:before,.learning-theme .auth-login-shell:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;z-index:-1;pointer-events:none}.learning-theme .auth-login-shell:before{background:url(/illustrations/login-corners.svg) center/100% 100% no-repeat}.learning-theme .auth-login-shell:after{inset:0 0 auto auto;width:96px;height:65px;opacity:.42;background:radial-gradient(circle,#ccdfcc 1.8px,transparent 2.3px) 0 0/15px 15px}.learning-theme .auth-login-content{width:100%;max-width:none;margin:0;padding:0}.learning-theme .auth-login-content .auth-hero{display:flex;align-items:center;gap:14px;min-height:112px;margin:0 8px 25px;padding:0;border:0}.learning-theme .auth-welcome-art{display:block;flex:none;width:108px;height:112px;object-fit:contain}.learning-theme .auth-login-content .auth-hero-copy{min-width:0;flex:1}.learning-theme .auth-login-content .auth-hero-copy h1{margin:0;color:#23734c;font-size:36px;line-height:1.28;font-weight:800;letter-spacing:0}.learning-theme .auth-login-content .auth-hero-copy .intro{max-width:none;margin:9px 0 0;color:#57766a;font-size:13px;line-height:1.7;font-weight:600}.learning-theme .auth-login-content .auth-panel{position:relative;padding:26px 20px 28px;border:1px solid #f0f5ee;border-radius:24px;background:#f0f6f1;box-shadow:0 9px 24px #53766309}.learning-theme .auth-login-content .auth-form{display:grid;gap:22px;margin:0;padding:0;border:0;border-radius:0;background:transparent;box-shadow:none}.learning-theme .auth-field{display:grid;min-width:0;gap:6px}.learning-theme .auth-login-content .auth-field-label{display:block;color:var(--auth-ink);font-size:18px;line-height:1.3;font-weight:700}.learning-theme .auth-input-row{display:flex;align-items:center;min-width:0;height:49px;gap:12px;padding:0 12px;border:1px solid #c4d3ca;border-radius:9px;background:#ffffff30;transition:border-color .15s,box-shadow .15s}.learning-theme .auth-input-row>svg{flex:none;width:25px;height:25px;color:#245a42;stroke-width:1.65}.learning-theme .auth-input-row:has(input[name=password]),.learning-theme .auth-input-row:has(input[name=newPassword]){border-color:#4a9a68}.learning-theme .auth-input-row:focus-within{border-color:#267e50;box-shadow:0 0 0 3px #267e5018}.learning-theme .auth-login-content .auth-input-row input{width:100%;min-width:0;min-height:0;height:24px;padding:0;border:0;border-radius:0;background:transparent;color:var(--auth-ink);font:400 15px/1.5 PingFang SC,Microsoft YaHei,sans-serif;box-shadow:none;outline:none}.learning-theme .auth-login-content .auth-input-row>svg+input{border-left:1px solid #cfdbd3;padding-left:13px}.learning-theme .auth-login-content .auth-input-row input::placeholder{color:#8b9991;opacity:1;font-size:14px}.learning-theme .auth-login-content .auth-input-row input:focus-visible{outline:none}.learning-theme .auth-field-hint{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.learning-theme #auth-recovery-hint{position:static;width:auto;height:auto;clip-path:none;white-space:normal;color:var(--auth-muted);font-size:11px;line-height:1.6}.learning-theme .auth-password-toggle{display:grid;place-items:center;flex:none;width:30px;height:36px;margin-right:-3px;padding:0;border:0;border-radius:7px;background:transparent;color:#245a42}.learning-theme .auth-password-toggle svg{width:25px;height:25px;stroke-width:1.65}.learning-theme .auth-login-content .primary-large{width:calc(100% + 8px);min-height:53px;margin:12px -4px 0;padding:12px 20px;gap:17px;border-radius:30px;background:var(--auth-green);color:#fff;font-size:20px;font-weight:700;letter-spacing:2px;box-shadow:none;transition:background .16s,transform .16s}.learning-theme .auth-submit-arrow{display:grid;place-items:center;flex:none;width:25px;height:25px;background:transparent}.learning-theme .auth-login-content .auth-links{display:grid;justify-items:center;gap:3px;margin-top:19px;padding:0;border:0}.learning-theme .auth-login-content .auth-link{display:flex;align-items:center;justify-content:center;gap:12px;min-height:43px;max-width:100%;padding:4px 0;color:#2f7c53;font:600 15px/1.5 PingFang SC,Microsoft YaHei,sans-serif;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}.learning-theme .auth-link svg{flex:none;stroke-width:1.7}.learning-theme .auth-create-icon{display:grid;place-items:center;width:23px;height:23px;flex:none;border:1.5px solid currentColor;border-radius:50%}.learning-theme .auth-login-content .auth-note{margin:17px 5px 0;padding:0;border:0;color:var(--auth-muted);font-size:11px;line-height:1.8}.learning-theme .auth-login-content .form-error{margin:0;padding:10px 12px;font-size:12px;line-height:1.6}.learning-theme .auth-login-shell .auth-footer{display:flex;align-items:flex-start;justify-content:center;gap:8px;min-height:0;margin:26px 16px 0;padding:0;border:0;color:#72897d;font-size:12px;line-height:1.8}.learning-theme .auth-login-shell .auth-footer svg{width:20px;height:22px;flex:none;margin-top:1px;stroke:#527665;stroke-width:1.6}.learning-theme .auth-login-shell .network-alert{position:relative;margin:20px 0 0;border-radius:12px;padding:12px}@media (hover:hover){.learning-theme .auth-login-content .primary-large:hover:not(:disabled){background:#1f6b43}.learning-theme .auth-password-toggle:hover{background:#dfebdf}}@media (min-width:700px){.learning-theme .auth-login-shell{min-height:calc(100dvh - 48px);margin:24px auto;padding-inline:24px;border-radius:28px}}@media (max-width:359px){.learning-theme .auth-login-shell{padding:38px 12px 75px}.learning-theme .auth-login-content .auth-hero{gap:10px;margin-inline:4px;margin-bottom:24px;min-height:96px}.learning-theme .auth-welcome-art{width:86px;height:96px}.learning-theme .auth-login-content .auth-hero-copy h1{font-size:29px}.learning-theme .auth-login-content .auth-hero-copy .intro{font-size:11px;margin-top:6px}.learning-theme .auth-login-content .auth-panel{padding:24px 16px}.learning-theme .auth-login-content .auth-input-row input::placeholder{font-size:11px}.learning-theme .auth-input-row{gap:9px;padding-inline:10px}.learning-theme .auth-login-content .auth-link{font-size:13px;gap:10px}}.learning-theme .form-stack label{color:#59675e;font-size:12px}.learning-theme .form-stack input::placeholder,.learning-theme textarea::placeholder{color:#9ca59a}.learning-theme .record-list>*+*{border-top:0}.learning-theme .screen-content{min-width:0}.learning-theme :is(input,select,textarea){max-width:100%;min-width:0}.learning-theme :is(.page-title,.page-subtitle,.profile-copy,.family-notice,.activity-row,.sheet-subtitle){overflow-wrap:anywhere}.learning-theme .me-screen,.learning-theme .account-screen{padding-top:8px}.learning-theme .me-screen>.eyebrow,.learning-theme .account-screen>.eyebrow{margin:0 0 4px;line-height:1.3}.learning-theme .me-screen>.page-title,.learning-theme .account-screen>.page-title{margin:0 0 10px;font-size:24px;line-height:1.25}.learning-theme .account-screen .backline{margin-bottom:7px}.learning-theme .statistics-screen>.back-button{margin-bottom:0}.learning-theme .statistics-screen .stats-heading{margin:8px 0 12px}.learning-theme .statistics-screen .stats-heading .eyebrow{margin:0 0 4px;line-height:1.3}.learning-theme .statistics-screen .stats-heading .page-title{margin:0;font-size:24px;line-height:1.25}.learning-theme .statistics-screen .stats-heading .page-subtitle{margin:3px 0 0;line-height:1.45}.learning-theme .account-screen>.page-title{font-size:28px;line-height:1.2;letter-spacing:-.7px}.learning-theme .account-screen>.page-subtitle{display:inline-flex;align-items:center;max-width:100%;margin:8px 0 22px;padding:9px 12px;border:1px solid #e6ebdf;border-radius:12px;background:#f2f5eb;color:#65766b;font-size:12px;line-height:1.6}.learning-theme .account-screen>.page-subtitle:first-letter{color:#43846b}.learning-theme .account-screen .family-notice{position:relative;margin:0 0 22px;padding:18px 19px 17px 21px;border-color:#dce8d8;background:linear-gradient(135deg,#f0f6e9,#fbfcf5);box-shadow:none}.learning-theme .account-screen .family-notice strong{display:flex;align-items:center;gap:9px;color:#41634e;font-size:15px;font-weight:700}.learning-theme .account-screen .family-notice strong:before{width:7px;height:7px;border-radius:50%;background:#77a37a;content:""}.learning-theme .account-screen .family-notice p{margin:9px 0 0;color:#617469;font-size:12px;line-height:1.8}.learning-theme .account-screen .account-actions{display:grid;gap:12px}.learning-theme .account-screen .account-actions .action{min-height:78px;padding:15px 16px;gap:13px;border-color:#e8ebdf;background:#fffefa;box-shadow:0 4px 16px #647b5e08;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.learning-theme .account-screen .account-actions .action-icon{width:42px;height:42px;flex:none;border-radius:14px;background:#eaf3e8;color:#5d8a69}.learning-theme .account-screen .account-actions .action strong{font-size:13px;line-height:1.5}.learning-theme .account-screen .account-actions .action small{margin-top:4px;color:#7b887f;font-size:10px;line-height:1.65}.learning-theme .account-screen .account-actions .account-delete{border-color:#efe5df;background:#fffdfa}.learning-theme .account-screen .account-actions .account-delete .action-icon{background:#f8ece7;color:#b46c59}.learning-theme .account-screen .account-actions .account-delete strong{color:#80594f}@media (hover:hover){.learning-theme .account-screen .account-actions .action:hover{transform:translateY(-1px);border-color:#d7e2d2;box-shadow:0 8px 20px #647b5e12}.learning-theme .account-screen .account-actions .account-delete:hover{border-color:#e7ccc2}}@media (max-width:359px){.learning-theme .account-screen>.page-title{font-size:25px}.learning-theme .account-screen>.page-subtitle{margin-bottom:18px;padding:8px 10px;font-size:11px}.learning-theme .account-screen .family-notice{padding:16px}.learning-theme .account-screen .account-actions .action{padding:13px 12px;gap:10px}.learning-theme .account-screen .account-actions .action small{font-size:9px}}@media (hover:hover){.learning-theme :is(.home-shortcut,.record,.stats-entry,.action):hover{box-shadow:0 6px 20px #657b6011;border-color:#d3dec9}.learning-theme .primary:hover:not(:disabled){background:#386f59}}@media (max-width:359px){.learning-theme .shell{padding-inline:16px}.learning-theme .brand strong{font-size:17px}.learning-theme .topbar{gap:6px}.learning-theme .welcome h1{font-size:24px}.learning-theme .review-band{padding:18px;min-height:192px}.learning-theme .review-art{width:62px;height:62px}.learning-theme .welcome-illustration{width:96px;height:112px}.learning-theme .review-illustration{width:100px;height:122px}.learning-theme .home-shortcuts{gap:10px}.learning-theme .home-shortcut{padding:14px;min-height:118px}.learning-theme .auth-shell{padding-inline:18px}.learning-theme .auth-form{padding:18px}}.learning-theme .page-form>.screen-content,.learning-theme .page-form .screen-content{max-width:760px;padding-top:8px;padding-bottom:30px}.learning-theme .page-form .backline{margin-bottom:4px}.learning-theme .page-form .page-title{margin:0;color:#344f45;font-size:24px;font-weight:800}.learning-theme .page-form>.screen-content>.eyebrow{margin:8px 0 3px;color:#81947d;font-size:10px}.learning-theme .page-form .data-form{gap:14px;margin-top:16px}.learning-theme .page-form .mistake-entry-form{display:grid;grid-template-columns:1fr;gap:14px}.learning-theme .page-form .mistake-entry-form>label,.learning-theme .page-form .mistake-entry-form .mistake-meta-fields,.learning-theme .page-form .mistake-entry-form .image-field{min-width:0}.learning-theme .page-form .mistake-entry-form>label{display:grid;gap:7px;color:#52675d;font-size:13px;font-weight:700}.learning-theme .page-form .mistake-entry-form .mistake-meta-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.learning-theme .page-form .mistake-entry-form .mistake-meta-fields label{display:grid;gap:7px;color:#52675d;font-size:13px;font-weight:700}.learning-theme .page-form .mistake-entry-form :is(select,input:not([type=checkbox]),textarea){width:100%;min-width:0;border:1px solid #dfe7dc;border-radius:18px;background:#fffefa;color:#3c5549;font-size:14px;box-shadow:0 2px 10px #50624708}.learning-theme .page-form .mistake-entry-form :is(select,input:not([type=checkbox])){height:52px;padding:0 15px}.learning-theme .page-form .mistake-entry-form textarea{min-height:118px;padding:15px;line-height:1.7;resize:vertical}.learning-theme .page-form .mistake-entry-form :is(input:not([type=checkbox]),textarea)::placeholder{color:#a8b1a5}.learning-theme .page-form .mistake-entry-form .image-field{display:grid;gap:12px;padding:17px;border:1px solid #dce9d9;border-radius:22px;background:#edf5e9;box-shadow:none}.learning-theme .page-form .mistake-entry-form .field-title{color:#506b59;font-size:15px;font-weight:800}.learning-theme .page-form .mistake-entry-form .image-picker-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.learning-theme .page-form .mistake-entry-form .image-picker{justify-content:center;min-height:48px;border:1px solid #d1e2d1;border-radius:15px;background:#fffefa;color:#57866a;font-size:12px}.learning-theme .page-form .mistake-entry-form .image-picker svg{width:20px;height:20px}.learning-theme .page-form .mistake-entry-form .image-preview{width:86px;height:86px;border:0;border-radius:16px;background:#f5f7ef}.learning-theme .page-form .mistake-entry-form .image-preview-remove{width:25px;height:25px;top:5px;right:5px;background:#355b4e;color:#fff}.learning-theme .page-form .mistake-entry-form .field-hint{color:#849487;font-size:10px;line-height:1.6}.learning-theme .page-form .mistake-entry-form .primary.full{min-height:54px;border-radius:18px;background:#43866b;font-size:15px;box-shadow:0 7px 16px #43866b26}.learning-theme .page-form .mistake-entry-form .correction-inputs{display:grid;gap:12px;min-width:0;padding-top:15px;border-top:1px solid #e4e9df}.learning-theme .page-form .mistake-entry-form .correction-inputs h2{margin:0;color:#52675d;font-size:15px;line-height:1.45}.learning-theme .page-form .mistake-entry-form .correction-inputs p{margin:0;color:#849487;font-size:11px;line-height:1.6}.learning-theme .page-form .mistake-entry-form .correction-confirm{display:grid;grid-template-columns:18px minmax(0,1fr);align-items:start;column-gap:10px;color:#52675d;font-size:13px;font-weight:650;line-height:1.55}.learning-theme .page-form .mistake-entry-form .correction-confirm input[type=checkbox]{-webkit-appearance:auto;-moz-appearance:auto;appearance:auto;display:block;width:18px!important;height:18px!important;min-width:18px;min-height:18px;margin:1px 0 0;padding:0;justify-self:start;accent-color:#43866b;border-radius:4px;box-shadow:none}.learning-theme .page-form .mistake-entry-form .correction-confirm>span{min-width:0}.learning-theme .page-form .mistake-entry-form .delete-button{border-radius:15px}@media (min-width:700px){.learning-theme .page-form .mistake-entry-form{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:16px;align-items:start}.learning-theme .page-form .mistake-entry-form>label:first-child,.learning-theme .page-form .mistake-entry-form>.mistake-meta-fields,.learning-theme .page-form .mistake-entry-form>label:nth-of-type(2),.learning-theme .page-form .mistake-entry-form>.image-field,.learning-theme .page-form .mistake-entry-form>.correction-inputs,.learning-theme .page-form .mistake-entry-form>.primary,.learning-theme .page-form .mistake-entry-form>.delete-button{grid-column:1/-1}.learning-theme .page-form .mistake-entry-form>label:nth-of-type(3),.learning-theme .page-form .mistake-entry-form>label:nth-of-type(4){grid-column:span 1}}@media (min-width:700px){.learning-theme .shell:not(.page-statistics){margin-block:24px;min-height:calc(100dvh - 48px);border:1px solid #e6eadf;border-radius:30px}.learning-theme .auth-shell{border:1px solid var(--line);border-radius:30px}.learning-theme .bottom-nav{border-radius:22px 22px 0 0}}.learning-theme .page-review .mistake-review-screen{display:flex;flex-direction:column;gap:14px;max-width:760px;padding-top:10px;padding-bottom:28px}.learning-theme .page-review .review-heading{padding:0;margin:0}.learning-theme .page-review .review-topline{display:flex;align-items:center;justify-content:space-between;min-height:42px}.learning-theme .page-review .review-topline .back-button{min-height:38px;padding:0;border:0;background:transparent;color:#4d8a70;font-size:13px;font-weight:650}.learning-theme .page-review .review-progress{margin:0;padding:8px 13px;border-radius:99px;background:#edf4e7;color:#608365;font-size:13px;font-weight:750}.learning-theme .page-review .review-intro{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin:14px 0 0}.learning-theme .page-review .review-intro .eyebrow{margin:0 0 6px;color:#81947d;font-size:11px;font-weight:700}.learning-theme .page-review .review-intro .page-title{margin:0;color:#344f45;font-size:24px;font-weight:800;line-height:1.35}.learning-theme .page-review .review-plan-note{flex:none;padding-bottom:3px;color:#97a091;font-size:11px}.learning-theme .page-review .review-step{display:flex;flex-direction:column;gap:9px;margin:16px 0 0;color:#8a998a;font-size:11px}.learning-theme .page-review .review-progress-track{width:100%;height:8px;overflow:hidden;border-radius:99px;background:#e7eddf}.learning-theme .page-review .review-progress-track i{display:block;height:100%;border-radius:inherit;background:#70ad82;transition:width .2s ease}.learning-theme .page-review .review-context{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:1px}.learning-theme .page-review .review-context span:first-child{padding:7px 11px;border-radius:10px;background:#e8f2f5;color:#7795a1;font-size:11px;font-weight:650}.learning-theme .page-review .review-context span:last-child{color:#8b968a;font-size:11px}.learning-theme .page-review .review-prompt{margin:0;color:#536e5d;font-size:14px;font-weight:700}.learning-theme .page-review .review-layout{display:flex;flex-direction:column;gap:12px;min-width:0}.learning-theme .page-review .review-main,.learning-theme .page-review .review-side{display:contents}.learning-theme .page-review .review-question{order:0;min-height:0;margin:0;padding:20px;border:0;border-radius:24px;background:#fffefa;box-shadow:0 5px 20px #495d4110}.learning-theme .page-review .review-question p{color:#3d5749;font-size:18px;line-height:1.8}.learning-theme .page-review .review-images{display:grid;grid-template-columns:1fr;gap:8px;margin-top:0}.learning-theme .page-review .review-images .image-preview-trigger{width:100%;max-height:none;overflow:hidden;border:0;border-radius:14px;background:#eef3ed}.learning-theme .page-review .review-images img{display:block;width:100%;height:auto;max-height:none;aspect-ratio:auto;object-fit:contain;border-radius:0;background:transparent}.learning-theme .page-review .review-solution{order:1;margin:0;padding:0;border:0;border-radius:18px;background:transparent;box-shadow:none}.learning-theme .page-review .solution-toggle{min-height:58px;border:0;border-radius:17px;background:#eaf4e7;color:#5d9477;font-size:14px}.learning-theme .page-review .review-solution:has(.solution-markdown){padding:16px;border:1px solid #e5eadf;border-radius:18px;background:#fffefa}.learning-theme .page-review .rating-prompt{order:2;display:grid;gap:4px;margin:2px 0 0}.learning-theme .page-review .rating-prompt strong{color:#435b4c;font-size:14px}.learning-theme .page-review .rating-prompt span{color:#929c90;font-size:11px}.learning-theme .page-review .rating-grid{order:3;gap:10px;margin:0}.learning-theme .page-review .rating-grid button{min-height:102px;gap:5px;border:0;border-radius:20px;box-shadow:none}.learning-theme .page-review .rating-grid button:first-child{background:#eaf4e7;color:#64a17a}.learning-theme .page-review .rating-grid button:nth-child(2){background:#fbf2dc;color:#b09253}.learning-theme .page-review .rating-grid button:nth-child(3){background:#faeae6;color:#bd7564}.learning-theme .page-review .rating-grid strong{font-size:14px}.learning-theme .page-review .rating-grid small{font-size:10px}.learning-theme .page-review .skip-button{order:4;margin:0 auto;border-radius:10px}.learning-theme .page-review .mistake-review-screen button:focus-visible{outline:3px solid #6c9f8066;outline-offset:3px}.learning-theme .page-review .mistake-review-screen{padding-bottom:calc(112px + env(safe-area-inset-bottom))}.learning-theme .page-review .review-images{padding:0;background:#eef3ed;border-radius:14px}@media (min-width:700px){.learning-theme .page-review .mistake-review-screen{max-width:900px;padding-top:22px;gap:17px}.learning-theme .page-review .mistake-review-screen{padding-bottom:calc(140px + env(safe-area-inset-bottom))}.learning-theme .page-review .review-intro .page-title{font-size:28px}.learning-theme .page-review .review-question{padding:25px;border-radius:26px}.learning-theme .page-review .review-images img{max-height:650px}.learning-theme .page-review .rating-grid button{min-height:116px}}@media (max-width:359px){.learning-theme .page-review .review-intro{align-items:flex-start;flex-direction:column;gap:4px}.learning-theme .page-review .review-intro .page-title{font-size:21px}.learning-theme .page-review .review-plan-note{padding:0}.learning-theme .page-review .review-question{padding:14px;border-radius:18px}.learning-theme .page-review .rating-grid{gap:6px}.learning-theme .page-review .rating-grid button{min-height:88px;border-radius:15px}}@media (prefers-reduced-motion:reduce){.learning-theme *,.learning-theme *:before,.learning-theme *:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.learning-theme .page-detail .screen-content,.learning-theme .page-review .review-screen,.learning-theme .page-form .screen-content{min-width:0;max-width:760px;margin-inline:auto;padding-top:18px}.learning-theme .page-detail .detail-heading{align-items:flex-start;margin:0 0 8px}.learning-theme .page-detail .detail-heading .page-title{font-size:24px;line-height:1.35}.learning-theme .page-detail .detail-actions{display:flex;flex:none;gap:7px}.learning-theme .page-detail .detail-edit{min-height:38px;height:auto;padding:0 12px;border:1px solid #dfe9dc;border-radius:12px;background:#f1f6ec;color:#4d7958}.learning-theme .page-detail .review-meta{border:1px solid #dfe9dc;border-radius:17px;background:#edf5e8;box-shadow:var(--soft-shadow);padding:14px}.learning-theme .page-detail .detail-section{min-width:0;margin-top:13px;padding:17px;border:1px solid #e8ebdf;border-radius:18px;background:var(--card);box-shadow:var(--soft-shadow)}.learning-theme .page-detail .detail-section h2{font-size:14px}.learning-theme .page-detail .detail-section p{font-size:13px;line-height:1.8;overflow-wrap:anywhere}.learning-theme .page-detail .detail-images{grid-template-columns:repeat(auto-fit,minmax(min(100%,210px),1fr))}.learning-theme .page-detail .modified-meta{color:var(--muted);font-size:10px;line-height:1.6;overflow-wrap:anywhere}.learning-theme .page-detail .knowledge-panel{background:#f7f7ef}.learning-theme .page-detail .detail-study-actions{border-radius:15px}.learning-theme .page-review .review-progress{padding:7px 11px;border-radius:999px;background:#eef3e7;color:#537452;font-weight:650}.learning-theme .page-review .review-heading{padding:8px 0 15px}.learning-theme .page-review .review-heading .eyebrow{margin-bottom:6px}.learning-theme .page-review .review-heading .page-title{margin:0;font-size:23px;line-height:1.4}.learning-theme .page-review .review-step{display:grid;grid-template-columns:1fr auto;gap:8px;margin-top:15px;color:var(--muted);font-size:11px}.learning-theme .page-review .review-step strong{color:#4d7958;font-size:11px}.learning-theme .page-review .review-step>div{grid-column:1/-1;height:7px;overflow:hidden;border-radius:99px;background:#e9eee4}.learning-theme .page-review .review-step i{display:block;height:100%;border-radius:inherit;background:#78aa7c;transition:width .2s ease}.learning-theme .page-review .review-layout{display:grid;gap:13px;min-width:0}.learning-theme .page-review .review-question,.learning-theme .page-review .review-solution{min-width:0;padding:17px;border:1px solid #e7ebdf;border-radius:19px;background:var(--card);box-shadow:var(--soft-shadow)}.learning-theme .page-review .review-card-heading{display:flex;align-items:center;gap:9px;margin-bottom:12px}.learning-theme .page-review .review-card-heading span{width:28px;height:28px;display:grid;place-items:center;border-radius:9px;background:#eaf3e5;color:#5c845f;font-size:10px;font-weight:700}.learning-theme .page-review .review-card-heading h2{margin:0;font-size:14px}.learning-theme .page-review .review-question p{overflow-wrap:anywhere;white-space:pre-wrap;line-height:1.85}.learning-theme .page-review .review-images{grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr))}.learning-theme .page-review .solution-toggle{min-height:48px;border:1px dashed #b9cdb7;border-radius:13px;background:#f4f8ef;color:#4d7958}.learning-theme .page-review .rating-prompt{display:grid;gap:4px;margin:16px 1px 9px}.learning-theme .page-review .rating-prompt strong{font-size:14px}.learning-theme .page-review .rating-prompt span{color:var(--muted);font-size:10px}.learning-theme .page-review .rating-grid{gap:9px;margin-top:0}.learning-theme .page-review .rating-grid button{min-height:94px;border:1px solid #e8ebdf;border-radius:16px;box-shadow:var(--soft-shadow)}.learning-theme .page-review .rating-grid button:first-child{background:#edf6e9;color:#4c8058}.learning-theme .page-review .rating-grid button:nth-child(2){background:#faf3df;color:#927442}.learning-theme .page-review .rating-grid button:nth-child(3){background:#faece8;color:#a45c4d}.learning-theme .page-review .skip-button{min-height:38px;padding:0 14px;border-radius:11px}.learning-theme .page-form .mistake-entry-form{gap:15px}.learning-theme .page-form .mistake-entry-form .image-field{min-width:0;padding:16px;border:1px solid #e7ebdf;border-radius:18px;background:var(--card);box-shadow:var(--soft-shadow)}.learning-theme .page-form .mistake-entry-form .field-title{font-size:14px}.learning-theme .page-form .mistake-entry-form .image-picker-row{flex-wrap:wrap}.learning-theme .page-form .mistake-entry-form .image-picker{min-height:44px;padding-inline:14px;border-radius:12px;background:#f0f6eb}.learning-theme .page-form .mistake-entry-form .image-previews{gap:10px}.learning-theme .page-form .mistake-entry-form .image-preview{width:clamp(68px,18vw,96px);height:clamp(68px,18vw,96px);border-radius:13px}.learning-theme .page-form .mistake-entry-form .mistake-meta-fields{gap:10px}.learning-theme .page-form .mistake-entry-form .form-error{padding:11px 13px}.learning-theme .page-form .mistake-entry-form .delete-button{min-height:42px;border-radius:12px}@media (min-width:700px){.learning-theme .shell.student-mode:is(.page-detail,.page-review,.page-form),.learning-theme .shell.parent-mode:is(.page-detail,.page-review,.page-form){width:min(100%,1024px);padding-inline:clamp(24px,4vw,48px)}.learning-theme .shell:is(.page-pet,.page-account){width:min(100%,1024px);padding-inline:clamp(24px,4vw,48px)}.learning-theme .page-detail .screen-content{max-width:930px;padding-top:24px}.learning-theme .page-review .review-screen{max-width:940px;padding-top:24px}.learning-theme .page-review .review-layout{grid-template-columns:minmax(0,1.35fr) minmax(270px,.75fr);align-items:start;gap:18px}.learning-theme .page-review .review-side{position:sticky;top:18px}.learning-theme .page-review .review-question{min-height:220px}.learning-theme .page-form .screen-content{max-width:850px;padding-top:24px}.learning-theme .page-form .mistake-entry-form{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:18px;align-items:start}.learning-theme .page-form .mistake-entry-form>label:nth-of-type(1){grid-column:1}.learning-theme .page-form .mistake-entry-form>.mistake-meta-fields{grid-column:2}.learning-theme .page-form .mistake-entry-form>label:nth-of-type(2),.learning-theme .page-form .mistake-entry-form>label:nth-of-type(3){grid-column:1/-1}.learning-theme .page-form .mistake-entry-form>.image-field{grid-column:1;max-width:100%}.learning-theme .page-form .mistake-entry-form>.image-field:only-child{grid-column:1/-1}.learning-theme .page-form .mistake-entry-form>label:nth-of-type(n+4){grid-column:2}.learning-theme .page-form .mistake-entry-form>.form-error,.learning-theme .page-form .mistake-entry-form>.primary,.learning-theme .page-form .mistake-entry-form>.delete-button{grid-column:1/-1}}@media (min-width:700px) and (max-width:899px){.learning-theme .shell.student-mode:is(.page-detail,.page-review,.page-form),.learning-theme .shell.parent-mode:is(.page-detail,.page-review,.page-form){padding-inline:22px}.learning-theme .shell:is(.page-pet,.page-account){padding-inline:22px}.learning-theme .page-review .review-layout{grid-template-columns:minmax(0,1.15fr) minmax(240px,.8fr);gap:12px}.learning-theme .page-review .rating-grid{gap:5px}.learning-theme .page-review .rating-grid button{min-height:86px}}@media (max-width:359px){.learning-theme .page-review .review-question,.learning-theme .page-review .review-solution,.learning-theme .page-detail .detail-section{padding:13px;border-radius:15px}.learning-theme .page-review .rating-grid{gap:5px}.learning-theme .page-review .rating-grid button{min-height:78px}.learning-theme .page-review .rating-grid strong{font-size:12px}}.learning-theme .student-mode .bottom-nav{grid-template-columns:repeat(5,minmax(0,1fr));position:fixed;height:auto;min-height:calc(76px + env(safe-area-inset-bottom));border-radius:0}.learning-theme .student-mode.page-home .home-shortcuts{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.learning-theme .student-mode.page-home .home-shortcut{min-height:113px;padding:13px 7px;align-items:center;text-align:center;border-radius:19px}.learning-theme .student-mode.page-home .home-shortcut strong{font-size:12px;white-space:nowrap}.learning-theme .student-mode.page-home .home-shortcut small{font-size:9px}.learning-theme .student-mode.page-home .home-shortcut-icon{background:transparent;width:40px;height:40px}.learning-theme .student-mode.page-home .home-shortcut-icon svg{width:34px;height:34px}.learning-theme .student-mode .mistake-subject-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.learning-theme .student-mode .mistake-subject-tile{min-height:174px;padding:19px;border:1px solid #ffffffa0;border-radius:23px;box-shadow:var(--soft-shadow);text-align:left}.learning-theme .student-mode .subject-tile-icon{width:49px;height:49px;background:#ffffff75;border-radius:15px;margin-bottom:12px}.learning-theme .student-mode .mistake-subject-tile strong{font-size:19px}.learning-theme .student-mode .mistake-subject-tile small{font-size:10px;line-height:1.6}.learning-theme .student-mode .tone-0{background:#fbefdc}.learning-theme .student-mode .tone-1{background:#eaf1fa}.learning-theme .student-mode .tone-2{background:#ebf3e6}.learning-theme .student-mode .tone-3{background:#f0ecf8}.learning-theme .student-mode .tone-4{background:#faece8}.learning-theme .student-mode .tone-5{background:#f1f1df}.learning-theme .student-mode :is(.mistake-workspace,.mistake-filter-panel,.mistake-results){min-width:0}.learning-theme .student-mode .mistake-search{height:44px;margin-top:0}.learning-theme .student-mode .mistake-filter-grid select{height:42px;border-radius:12px;background:var(--card)}.learning-theme .student-mode .mistake-taxonomy-filters input{min-height:40px}.learning-theme .student-mode .mistake-entry{padding:14px;border:1px solid var(--line);border-radius:20px;background:var(--card);box-shadow:var(--soft-shadow)}.learning-theme .student-mode .mistake-entry.is-managing{padding-left:43px}.learning-theme .student-mode .mistake-card-image{border-radius:13px;background:#f0f3e9}.learning-theme .student-mode .mistake-card-topline{flex-wrap:wrap}.learning-theme .student-mode .mistake-card-topline>strong{font-size:13px;line-height:1.6}.learning-theme .student-mode .mistake-status{border-radius:6px;font-size:9px}.learning-theme .student-mode .mistake-card-actions{justify-content:space-between;gap:5px;margin-top:12px;padding-top:10px}.learning-theme .student-mode .mistake-card-actions button{min-height:38px;border-radius:10px;padding-inline:8px}.learning-theme .student-mode .date-dot{background:#98b78e}.learning-theme .student-mode .note-card-grid{display:grid;gap:14px}.learning-theme .student-mode .note-card-grid>.record{min-width:0;min-height:188px;display:grid;grid-template-columns:42px minmax(0,1fr) 16px;align-items:start;padding:21px;border-radius:23px;background:#f4f3e8}.learning-theme .student-mode .note-card-grid>.record:nth-child(4n+2){background:#eaf1f7}.learning-theme .student-mode .note-card-grid>.record:nth-child(4n+3){background:#eef3e6}.learning-theme .student-mode .note-card-grid>.record:nth-child(4n+4){background:#f5ece8}.learning-theme .student-mode .note-card-grid .record-mark{background:#ffffff95;width:40px;height:42px}.learning-theme .student-mode .note-card-grid .record-copy strong{font-size:16px;line-height:1.7}.learning-theme .student-mode .note-card-grid .record-copy small{font-size:11px;line-height:1.9;margin-top:12px;-webkit-line-clamp:4;overflow-wrap:anywhere}@media (min-width:700px){.learning-theme .shell.student-mode:is(.page-home,.page-mistakes,.page-notes){width:min(100%,960px);padding-inline:32px;margin-block:0;min-height:100dvh;border-radius:0}.learning-theme .student-mode:is(.page-home,.page-mistakes,.page-notes) .bottom-nav{width:min(100%,960px)}.learning-theme .student-mode.page-home .student-welcome{min-height:170px}.learning-theme .student-mode.page-home .welcome h1{font-size:32px}.learning-theme .student-mode.page-home .welcome-illustration{width:160px;height:150px}.learning-theme .student-mode.page-home .review-band{min-height:210px;padding:28px 32px}.learning-theme .student-mode.page-home .review-illustration{width:190px;height:170px;margin-right:16px}.learning-theme .student-mode.page-home .home-shortcuts{gap:16px}.learning-theme .student-mode.page-home .home-shortcut{min-height:133px;padding:19px}.learning-theme .student-mode.page-home .home-shortcut strong{font-size:15px}.learning-theme .student-mode.page-home .home-shortcut small{font-size:11px}.learning-theme .student-mode .mistake-subject-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.learning-theme .student-mode .mistake-subject-tile{min-height:182px;padding:23px}.learning-theme .student-mode .mistake-workspace{display:grid;grid-template-columns:190px minmax(0,1fr);gap:22px;align-items:start}.learning-theme .student-mode .mistake-filter-panel{padding:15px;border:1px solid var(--line);border-radius:20px;background:#f4f5ed}.learning-theme .student-mode :is(.mistake-filter-grid,.mistake-taxonomy-filters){grid-template-columns:minmax(0,1fr)}.learning-theme .student-mode .mistake-taxonomy-filters{margin-top:12px}.learning-theme .student-mode .note-card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.learning-theme .student-mode .note-card-grid>.record{min-height:225px}}.learning-theme .student-mode.page-mistakes .mistake-library:has(.mistake-detail-heading){padding:4px 2px 28px}.learning-theme .student-mode.page-mistakes .mistake-subject-heading{margin:0 0 12px}.learning-theme .student-mode.page-mistakes .mistake-subject-heading>.back-button{min-height:26px;margin:0 0 5px;padding:0;border:0;background:transparent;color:#3e8768;font-size:10px}.learning-theme .student-mode.page-mistakes .mistake-detail-heading{display:flex;align-items:center;justify-content:space-between;gap:8px}.learning-theme .student-mode.page-mistakes .mistake-detail-title{display:flex;align-items:center;gap:7px;min-width:0}.learning-theme .student-mode.page-mistakes .mistake-detail-title .subject-art-icon{width:32px;height:32px;object-fit:contain;mix-blend-mode:normal}.learning-theme .student-mode.page-mistakes .mistake-detail-title .page-title{margin:0;font-size:21px;line-height:1.25;font-weight:800}.learning-theme .student-mode.page-mistakes .mistake-detail-heading .add-button{min-height:30px;height:30px;padding:0 11px;border-radius:99px;font-size:10px;white-space:nowrap}.learning-theme .student-mode.page-mistakes .mistake-workspace{display:block}.learning-theme .student-mode.page-mistakes .mistake-filter-panel{display:grid;gap:8px;padding:0;border:0;background:transparent}.learning-theme .student-mode.page-mistakes .mistake-search{height:35px;min-height:35px;margin:0;padding:0 10px;border:1px solid #eeeee6;border-radius:14px;background:#fffefa}.learning-theme .student-mode.page-mistakes .mistake-search input{min-height:32px;font-size:10px}.learning-theme .student-mode.page-mistakes .mistake-filter-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}.learning-theme .student-mode.page-mistakes .mistake-filter-grid .subject-filter{display:none}.learning-theme .student-mode.page-mistakes .mistake-filter-grid label{display:block;min-width:0}.learning-theme .student-mode.page-mistakes .mistake-filter-grid label>span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.learning-theme .student-mode.page-mistakes .mistake-filter-grid select{height:30px;padding:0 8px;border:0;border-radius:10px;background:#fffefa;font-size:9px;color:#748078}.learning-theme .student-mode.page-mistakes .mistake-secondary-filters{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;min-width:0}.learning-theme .student-mode.page-mistakes .mistake-secondary-filters .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.learning-theme .student-mode.page-mistakes .mistake-secondary-filters .correction-filter,.learning-theme .student-mode.page-mistakes .mistake-taxonomy-filters label{display:block;min-width:0;margin:0;color:#748078;font-size:9px;font-weight:600}.learning-theme .student-mode.page-mistakes .mistake-secondary-filters .correction-filter select,.learning-theme .student-mode.page-mistakes .mistake-taxonomy-filters input{box-sizing:border-box;width:100%;height:30px;min-height:30px;padding:0 9px;border:0;border-radius:10px;background:#fffefa;color:#748078;font-size:9px}.learning-theme .student-mode.page-mistakes .mistake-taxonomy-filters{display:block;min-width:0;margin:0}.learning-theme .student-mode.page-mistakes .mistake-date-range{margin:0}.learning-theme .student-mode.page-mistakes .mistake-date-range input{height:30px;font-size:9px}.learning-theme .student-mode.page-mistakes .mistake-archive-filter{justify-content:flex-start;gap:13px;margin:0;padding:0;border-radius:0;background:transparent}.learning-theme .student-mode.page-mistakes .mistake-archive-filter button{position:relative;flex:none;min-height:30px;padding:0 2px;border-radius:0;background:transparent;font-size:10px;color:#849088}.learning-theme .student-mode.page-mistakes .mistake-archive-filter button.active{background:transparent;color:#327b5e;box-shadow:none;font-weight:750}.learning-theme .student-mode.page-mistakes .mistake-archive-filter button.active:after{position:absolute;right:0;bottom:0;left:0;height:2px;border-radius:2px;background:#43876a;content:""}.learning-theme .student-mode.page-mistakes .mistake-results{display:block}.learning-theme .student-mode.page-mistakes .paper-create-bar{min-height:26px;margin:2px 0 5px;padding:0;gap:5px}.learning-theme .student-mode.page-mistakes .mistake-result-count{color:#8a958e;font-size:9px;white-space:nowrap}.learning-theme .student-mode.page-mistakes .mistake-list-actions{display:flex;align-items:center;gap:6px}.learning-theme .student-mode.page-mistakes .mistake-manage-toggle{padding:3px 5px;border:0;background:transparent;color:#4e846d;font-size:9px}.learning-theme .student-mode.page-mistakes .paper-create-bar label{display:block}.learning-theme .student-mode.page-mistakes .paper-create-bar select{min-width:49px;min-height:26px;height:26px;padding:0 5px;border:0;border-radius:8px;background:#f1f5ee;font-size:9px}.learning-theme .student-mode.page-mistakes .paper-create-button{min-height:26px;height:26px;gap:3px;padding:0 5px;border:0;border-radius:7px;background:transparent;font-size:9px}.learning-theme .student-mode.page-mistakes .mistake-date-groups{gap:8px;margin-top:0}.learning-theme .student-mode.page-mistakes .mistake-date-heading{display:none}.learning-theme .student-mode.page-mistakes .mistake-card-list{gap:8px}.learning-theme .student-mode.page-mistakes .mistake-entry{padding:10px 11px;border:0;border-radius:16px;background:#fffefa;box-shadow:0 2px 12px #53674b0b}.learning-theme .student-mode.page-mistakes .mistake-card-main{grid-template-columns:minmax(0,1fr) 14px;gap:7px}.learning-theme .student-mode.page-mistakes .mistake-card-main.has-image{grid-template-columns:48px minmax(0,1fr) 14px}.learning-theme .student-mode.page-mistakes .mistake-card-image{width:48px;height:48px;border:0;border-radius:9px;background:#f4f5ed}.learning-theme .student-mode.page-mistakes .mistake-card-copy{gap:4px}.learning-theme .student-mode.page-mistakes .mistake-card-topline{display:flex;align-items:center;justify-content:flex-start;gap:5px;flex-wrap:nowrap}.learning-theme .student-mode.page-mistakes .mistake-subject-chip{padding:3px 6px;border-radius:7px;background:#e5f0f7;color:#4d7891;font-size:8px;white-space:nowrap}.learning-theme .student-mode.page-mistakes .mistake-status{padding:3px 6px;border-radius:7px;background:#fff1df;color:#b47a36;font-size:8px}.learning-theme .student-mode.page-mistakes .mistake-card-time{margin-left:auto;color:#9aa39c;font-size:8px;white-space:nowrap}.learning-theme .student-mode.page-mistakes .mistake-card-title{display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2;font-size:10px;line-height:1.5;font-weight:550;color:#263b32;text-align:left}.learning-theme .student-mode.page-mistakes .mistake-card-excerpt{font-size:9px;line-height:1.4}.learning-theme .student-mode.page-mistakes .mistake-card-grade{color:#96a099;font-size:8px}.learning-theme .student-mode.page-mistakes .mistake-card-actions{justify-content:flex-start;gap:13px;margin-top:6px;padding-top:6px;border-top:1px solid #f0f1ec}.learning-theme .student-mode.page-mistakes .mistake-card-actions button{min-height:24px;gap:4px;padding:0;border-radius:0;background:transparent;color:#408269;font-size:9px}.learning-theme .student-mode.page-mistakes .mistake-card-actions button:last-child{margin-left:auto;color:#78867d}.learning-theme .student-mode.page-mistakes .mistake-management-bar{margin-top:4px}@media (max-width:359px){.learning-theme .student-mode.page-mistakes .mistake-detail-title .page-title{font-size:19px}.learning-theme .student-mode.page-mistakes .mistake-detail-heading .add-button{padding:0 8px;font-size:9px}.learning-theme .student-mode.page-mistakes .mistake-card-actions{gap:9px}.learning-theme .student-mode.page-mistakes .mistake-card-actions button{font-size:8px}}@media (min-width:700px){.learning-theme .student-mode.page-mistakes .mistake-library:has(.mistake-detail-heading){max-width:760px;margin-inline:auto}}.learning-theme .student-mode.page-mistakes .mistake-library:has(>.mistake-library-heading){padding:14px 4px 30px}.learning-theme .student-mode.page-mistakes .mistake-library-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0 0 16px}.learning-theme .student-mode.page-mistakes .mistake-library-heading .page-title{margin:0;font-size:23px;line-height:1.25;font-weight:800}.learning-theme .student-mode.page-mistakes .mistake-library-heading .page-subtitle{margin:4px 0 0;font-size:10px;line-height:1.4;color:#7b877f}.learning-theme .student-mode.page-mistakes .mistake-library-heading .add-button{height:32px;min-height:32px;min-width:0;padding:0 11px;border-radius:99px;font-size:10px;white-space:nowrap}.learning-theme .student-mode.page-mistakes .mistake-subject-section-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;color:#52645a;font-size:10px}.learning-theme .student-mode.page-mistakes .mistake-subject-section-title strong{font-size:11px;font-weight:750}.learning-theme .student-mode.page-mistakes .mistake-subject-section-title span{color:#89948d;font-size:9px}.learning-theme .student-mode.page-mistakes .mistake-subject-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:0}.learning-theme .student-mode.page-mistakes .mistake-subject-tile{position:relative;box-sizing:border-box;min-height:91px;height:91px;gap:3px;padding:10px;border:0;border-radius:16px;box-shadow:none}.learning-theme .student-mode.page-mistakes .mistake-subject-tile .subject-art-icon{position:absolute;top:50%;right:5px;width:62px;height:62px;transform:translateY(-50%);object-fit:contain;mix-blend-mode:normal}.learning-theme .student-mode.page-mistakes .mistake-subject-tile>strong{max-width:calc(100% - 54px);margin:0;font-size:13px;line-height:1.35;font-weight:750;color:#36473e}.learning-theme .student-mode.page-mistakes .mistake-subject-tile .subject-tile-count{display:flex;align-items:center;gap:3px;margin-top:5px;font-size:11px;line-height:1.25;font-weight:750;color:#378267}.learning-theme .student-mode.page-mistakes .mistake-subject-tile small{max-width:100%;margin-top:auto;font-size:8px;line-height:1.2;color:#78867d;opacity:1;white-space:nowrap}@media (max-width:359px){.learning-theme .student-mode.page-mistakes .mistake-library:has(>.mistake-library-heading){padding-inline:0}.learning-theme .student-mode.page-mistakes .mistake-subject-grid{gap:7px}.learning-theme .student-mode.page-mistakes .mistake-subject-tile{height:88px;min-height:88px;padding:9px}.learning-theme .student-mode.page-mistakes .mistake-subject-tile .subject-art-icon{width:54px;height:54px;right:3px}.learning-theme .student-mode.page-mistakes .mistake-subject-tile>strong{font-size:12px}.learning-theme .student-mode.page-mistakes .mistake-subject-tile small{font-size:7px}}.learning-theme .page-home .student-welcome{height:166px;min-height:166px;padding:8px 0 20px;overflow:visible}.learning-theme .page-home .student-welcome .welcome-copy{width:calc(100% - 155px);max-width:calc(100% - 155px);flex-basis:calc(100% - 155px)}.learning-theme .page-home .student-welcome .welcome h1{font-weight:800}.learning-theme .page-home .student-welcome .welcome-illustration{right:0;bottom:10px;width:150px;height:150px;object-fit:contain;object-position:center center}.learning-theme .page-home .review-band{margin-top:8px}@media (max-width:359px){.learning-theme .page-home .student-welcome{height:150px;min-height:150px;padding-bottom:18px}.learning-theme .page-home .student-welcome .welcome-copy{width:calc(100% - 128px);max-width:calc(100% - 128px);flex-basis:calc(100% - 128px)}.learning-theme .page-home .student-welcome .welcome h1{font-size:19px}.learning-theme .page-home .student-welcome .welcome-illustration{bottom:8px;width:126px;height:132px}}@media (min-width:700px){.learning-theme .page-home .student-welcome{height:190px;min-height:190px;padding-bottom:20px}.learning-theme .page-home .student-welcome .welcome-copy{width:calc(100% - 190px);max-width:calc(100% - 190px);flex-basis:calc(100% - 190px)}.learning-theme .page-home .student-welcome .welcome h1{font-size:30px;font-weight:800}.learning-theme .page-home .student-welcome .welcome-illustration{right:8px;bottom:10px;width:174px;height:174px}}@media print{.learning-theme .shell.student-mode.page-mistakes{width:100%;margin:0;padding:0;border:0;border-radius:0}.learning-theme .student-mode .bottom-nav{display:none!important}}.learning-theme .student-mode .welcome-illustration,.learning-theme .student-mode .review-illustration{object-fit:contain}.learning-theme .student-mode .home-shortcut-icon{overflow:hidden}.learning-theme .student-mode .home-shortcut-icon img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply}.learning-theme .student-mode .review-band .primary img{width:22px;height:22px;object-fit:contain;mix-blend-mode:screen}.learning-theme .student-mode .stats-art-icon{width:38px;height:38px;object-fit:contain;mix-blend-mode:multiply}.learning-theme .student-mode .subject-art-icon{width:68px;height:68px;object-fit:contain;mix-blend-mode:multiply}.learning-theme .student-mode .mistake-subject-tile{gap:4px}.learning-theme .student-mode .mistake-subject-tile strong{margin-top:0}.learning-theme .student-mode .subject-tile-count{font-weight:650}.learning-theme .student-mode .bottom-nav button img{width:30px;height:30px;object-fit:contain;mix-blend-mode:multiply}.learning-theme .student-mode .bottom-nav button.active img{transform:translateY(-1px)}.learning-theme .student-mode .note-card-grid{grid-template-columns:minmax(0,1fr);gap:14px}.learning-theme .student-mode .note-card{width:100%;min-width:0;min-height:174px;display:flex;flex-direction:column;align-items:stretch;gap:11px;padding:18px;border:1px solid #e6e8dc;border-radius:22px;color:var(--ink);text-align:left;box-shadow:var(--soft-shadow)}.learning-theme .student-mode .note-tone-0{background:#fbf3e5}.learning-theme .student-mode .note-tone-1{background:#eaf2f6}.learning-theme .student-mode .note-tone-2{background:#edf3e7}.learning-theme .student-mode .note-tone-3{background:#f4ecf5}.learning-theme .student-mode .note-card-top{display:flex;align-items:center;justify-content:space-between;color:#75847a}.learning-theme .student-mode .note-card-subject{display:flex;align-items:center;gap:7px;font-size:11px}.learning-theme .student-mode .note-card-subject img{width:34px;height:34px;object-fit:contain;mix-blend-mode:multiply}.learning-theme .student-mode .note-card>strong{font-size:15px;line-height:1.65;overflow-wrap:anywhere}.learning-theme .student-mode .note-card-excerpt{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden;color:#68776e;font-size:11px;line-height:1.75;white-space:pre-line;overflow-wrap:anywhere}.learning-theme .student-mode .note-card-tags{display:flex;flex-wrap:wrap;gap:6px}.learning-theme .student-mode .note-card-tags span{max-width:100%;padding:4px 7px;border-radius:7px;background:#fffa;color:#687d70;font-size:9px;overflow-wrap:anywhere}.learning-theme .student-mode .note-card>small{margin-top:auto;padding-top:8px;border-top:1px solid #71817222;color:#748078;font-size:9px;line-height:1.6;overflow-wrap:anywhere}@media (min-width:700px){.learning-theme .student-mode .note-card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.learning-theme .student-mode .note-card{min-height:218px;padding:21px}.learning-theme .student-mode .subject-art-icon{width:78px;height:78px}}.learning-theme .student-mode .welcome-illustration,.learning-theme .student-mode .review-illustration{mix-blend-mode:multiply}.learning-theme .student-mode.page-mistakes .mistake-subject-tile:before,.learning-theme .student-mode.page-mistakes .mistake-subject-tile:after{display:none}.learning-theme .student-mode.page-home .home-shortcut-icon{width:48px;height:48px}.learning-theme .student-mode .mistake-card-image .subject-art-icon{width:100%;height:100%;object-fit:cover}.learning-theme .student-mode.page-notes .screen-content{padding:22px 0 calc(96px + env(safe-area-inset-bottom))}.learning-theme .student-mode.page-notes .list-title-row{align-items:center;margin:0 0 22px;gap:12px}.learning-theme .student-mode.page-notes .list-title-row .page-title{margin:0;font-size:25px;line-height:1.3;font-weight:800;color:#30483d}.learning-theme .student-mode.page-notes .list-title-row .page-subtitle{margin:4px 0 0;font-size:11px;line-height:1.5;color:#87928b}.learning-theme .student-mode.page-notes .list-title-row .add-button{height:36px;min-height:36px;min-width:0;padding:0 13px;border-radius:999px;font-size:11px;white-space:nowrap;box-shadow:0 3px 9px #39785a18}.learning-theme .student-mode.page-notes .note-card-grid{grid-template-columns:minmax(0,1fr);gap:12px}.learning-theme .student-mode.page-notes .note-card{position:relative;width:100%;min-width:0;min-height:0;display:flex;flex-direction:column;align-items:stretch;gap:0;padding:15px 15px 13px;border:0;border-radius:21px;background:#fffefa;color:#30443a;text-align:left;box-shadow:0 3px 14px #53674b0a;overflow:visible}.learning-theme .student-mode.page-notes .note-card-top{min-height:31px;display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:9px;color:#75847a}.learning-theme .student-mode.page-notes .note-card-subject{min-width:0;display:flex;align-items:center;gap:7px;font-size:10px}.learning-theme .student-mode.page-notes .note-card-subject img{width:27px;height:27px;flex:none;object-fit:contain;mix-blend-mode:multiply}.learning-theme .student-mode.page-notes .note-subject-chip{flex:none;padding:5px 9px;border-radius:9px;background:#e7f1f6;color:#4f7b91;font-size:10px;font-weight:700;white-space:nowrap}.learning-theme .student-mode.page-notes .note-chip-1{background:#f9e9e7;color:#ad6860}.learning-theme .student-mode.page-notes .note-chip-2{background:#fbf1d7;color:#967d3d}.learning-theme .student-mode.page-notes .note-chip-3{background:#eee8f4;color:#796694}.learning-theme .student-mode.page-notes .note-category{min-width:0;overflow:hidden;color:#929d95;font-size:10px;text-overflow:ellipsis;white-space:nowrap}.learning-theme .student-mode.page-notes .note-menu-wrap{position:relative;flex:none;margin-left:auto}.learning-theme .student-mode.page-notes .note-menu-trigger{width:32px;height:32px;display:grid;place-items:center;padding:0;border:0;border-radius:50%;background:transparent;color:#76847b;cursor:pointer}.learning-theme .student-mode.page-notes .note-menu-trigger:hover,.learning-theme .student-mode.page-notes .note-menu-trigger:focus-visible{background:#eff3eb;outline:2px solid #b6d1bd;outline-offset:1px}.learning-theme .student-mode.page-notes .note-menu{position:absolute;z-index:5;top:34px;right:0;width:118px;padding:5px;border:1px solid #e8ebe2;border-radius:11px;background:#fffefa;box-shadow:0 8px 24px #283c321c}.learning-theme .student-mode.page-notes .note-menu button{width:100%;min-height:36px;padding:0 9px;border:0;border-radius:7px;background:transparent;color:#43564a;text-align:left;font-size:11px;cursor:pointer}.learning-theme .student-mode.page-notes .note-menu button:hover,.learning-theme .student-mode.page-notes .note-menu button:focus-visible{background:#f0f4ed;outline:none}.learning-theme .student-mode.page-notes .note-menu .note-menu-delete{color:#a25d51}.learning-theme .student-mode.page-notes .note-card-open{min-width:0;display:grid;gap:5px;padding:0;border:0;background:transparent;color:inherit;text-align:left;cursor:pointer}.learning-theme .student-mode.page-notes .note-card-open:focus-visible{outline:2px solid #82ad91;outline-offset:4px;border-radius:3px}.learning-theme .student-mode.page-notes .note-card-open>strong{display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2;font-size:15px;line-height:1.5;font-weight:750;overflow-wrap:anywhere}.learning-theme .student-mode.page-notes .note-card-excerpt{display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2;margin:0;color:#89938c;font-size:11px;line-height:1.65;white-space:pre-line;overflow-wrap:anywhere}.learning-theme .student-mode.page-notes .note-card-updated{display:flex;align-items:center;gap:5px;margin-top:10px;padding-top:9px;border-top:1px solid #eff0e9;color:#9aa39c;font-size:9px;line-height:1.4}.learning-theme .student-mode.page-notes .note-card-updated svg{flex:none}@media (max-width:359px){.learning-theme .student-mode.page-notes .screen-content{padding-top:15px}.learning-theme .student-mode.page-notes .list-title-row .page-title{font-size:23px}.learning-theme .student-mode.page-notes .note-card{padding:13px;border-radius:18px}.learning-theme .student-mode.page-notes .note-card-open>strong{font-size:14px}}@media (min-width:700px){.learning-theme .student-mode.page-notes .screen-content{max-width:850px;margin-inline:auto}.learning-theme .student-mode.page-notes .note-card-grid{grid-template-columns:minmax(0,1fr);gap:14px}.learning-theme .student-mode.page-notes .note-card{padding:17px 20px 15px}}.learning-theme .student-mode.page-home{padding-bottom:calc(82px + env(safe-area-inset-bottom))}.learning-theme .student-mode.page-home .topbar{height:58px}.learning-theme .student-mode.page-home .brand-mark{display:none}.learning-theme .student-mode.page-home .brand strong{font-size:13px}.learning-theme .student-mode.page-home .student-welcome{min-height:92px;padding:7px 0 12px}.learning-theme .student-mode.page-home .welcome .eyebrow{margin-bottom:5px;font-size:9px}.learning-theme .student-mode.page-home .welcome h1{font-size:20px;line-height:1.4;font-weight:800}.learning-theme .student-mode.page-home .welcome .intro{margin-top:3px;font-size:10px}.learning-theme .student-mode.page-home .welcome-illustration{width:104px;height:92px;margin:0 -4px 0 0}.learning-theme .student-mode.page-home .review-band{min-height:0;height:180px;padding:15px 16px;border:1px solid #c9e3ce;border-radius:20px;background:#e5f4e8;gap:8px}.learning-theme .student-mode.page-home .review-band .label{font-size:11px;color:#39765b}.learning-theme .student-mode.page-home .review-band .count{margin-top:4px;font-size:35px;line-height:1.05;color:#176c49}.learning-theme .student-mode.page-home .review-band .count small{font-size:10px}.learning-theme .student-mode.page-home .review-band p{margin:4px 0 8px;font-size:9px;line-height:1.5}.learning-theme .student-mode.page-home .review-band .primary{min-height:34px;padding:7px 14px;border-radius:99px;font-size:10px}.learning-theme .student-mode.page-home .review-illustration{width:100px;height:104px;margin:0 -6px 0 0}.learning-theme .student-mode.page-home>.section-heading{margin:12px 0 8px}.learning-theme .student-mode.page-home>.section-heading h2{font-size:13px}.learning-theme .student-mode.page-home .home-shortcuts{gap:6px}.learning-theme .student-mode.page-home .home-shortcut{min-width:0;min-height:76px;padding:7px 3px;gap:2px;border:0;border-radius:15px}.learning-theme .student-mode.page-home .home-shortcut-icon{width:38px;height:38px;margin:0;overflow:visible}.learning-theme .student-mode.page-home .home-shortcut-icon img{width:100%;height:100%;object-fit:contain;mix-blend-mode:normal}.learning-theme .student-mode.page-home .home-shortcut strong{font-size:10px;line-height:1.35}.learning-theme .student-mode.page-home .home-shortcut small{display:none}.learning-theme .student-mode.page-home .stats-entry{min-height:42px;margin-top:9px;padding:8px 12px;border:0;border-radius:15px;background:#fffefa}.learning-theme .student-mode.page-home .stats-entry .stats-art-icon{width:25px;height:25px}.learning-theme .student-mode.page-home .stats-entry small{font-size:9px}.learning-theme .student-mode.page-home .recent{margin-top:10px}.learning-theme .student-mode.page-home .recent .section-heading{margin-bottom:7px}.learning-theme .student-mode.page-home .recent .section-heading h2{font-size:13px}.learning-theme .student-mode.page-home .recent .record-list{gap:5px}.learning-theme .student-mode.page-home .recent .record{min-height:48px;padding:7px 9px;border:0;border-radius:13px;box-shadow:none}.learning-theme .student-mode.page-home .recent .record-mark{width:27px;height:27px;border-radius:8px}.learning-theme .student-mode.page-home .recent .record-copy strong{font-size:10px}.learning-theme .student-mode.page-home .recent .record-copy small{font-size:8px}.learning-theme .student-mode.page-home .topbar{height:64px}.learning-theme .student-mode.page-home .brand-mark{display:grid;width:34px;height:34px;border-radius:50%;background:#daf0dc;color:#227448;font-size:16px}.learning-theme .student-mode.page-home .brand strong{font-size:14px}.learning-theme .student-mode.page-home .brand small{font-size:9px}.learning-theme .student-mode.page-home .top-actions:empty{display:none}.learning-theme .student-mode.page-home .student-welcome{min-height:116px;padding:8px 0 12px}.learning-theme .student-mode.page-home .welcome .eyebrow{display:none}.learning-theme .student-mode.page-home .welcome h1{font-size:23px;line-height:1.35;font-weight:800}.learning-theme .student-mode.page-home .welcome .intro{font-size:11px}.learning-theme .student-mode.page-home .welcome .intro .intro-sun{display:inline-flex;align-items:center;justify-content:center;color:#eda63a;vertical-align:-3px;margin-left:2px}.learning-theme .student-mode.page-home .welcome-illustration{width:136px;height:116px;margin-right:-10px}.learning-theme .student-mode.page-home .review-band{height:186px;padding:17px 18px;background:linear-gradient(115deg,#e8f7e9,#dcf4e1);border-color:#c4efcf}.learning-theme .student-mode.page-home .review-band .label svg{color:#167149}.learning-theme .student-mode.page-home .review-band .count{font-size:39px;color:#087647}.learning-theme .student-mode.page-home .review-band p{font-size:10px;margin:4px 0 9px}.learning-theme .student-mode.page-home .review-band .primary{min-height:37px;padding-inline:19px;font-size:11px}.learning-theme .student-mode.page-home .review-illustration{width:142px;height:140px;margin-right:-10px}.learning-theme .student-mode.page-home>.section-heading{margin:18px 0 9px}.learning-theme .student-mode.page-home>.section-heading h2{font-size:15px}.learning-theme .student-mode.page-home .home-shortcuts{gap:8px}.learning-theme .student-mode.page-home .home-shortcut{min-height:104px;padding:8px 4px;gap:3px;border-radius:17px}.learning-theme .student-mode.page-home .home-shortcut-icon{width:56px;height:56px}.learning-theme .student-mode.page-home .home-shortcut strong{font-size:11px}.learning-theme .student-mode.page-home .home-shortcut small{display:block;font-size:9px}.learning-theme .student-mode.page-home .stats-entry{display:flex;align-items:center;gap:10px;min-height:54px;margin-top:9px;padding:9px 14px;border:0;border-radius:16px;background:#fffefa;box-shadow:0 4px 14px #647b5e0a}.learning-theme .student-mode.page-home .stats-entry .stats-art-icon{width:30px;height:30px}.learning-theme .student-mode.page-home .stats-entry>span{min-width:0;display:grid;gap:2px}.learning-theme .student-mode.page-home .stats-entry strong{font-size:12px}.learning-theme .student-mode.page-home .stats-entry>span small{font-size:9px;color:var(--muted)}.learning-theme .student-mode.page-home .stats-entry .stats-entry-hint{margin-left:auto;color:var(--muted);font-size:9px;white-space:nowrap}.learning-theme .student-mode.page-home .stats-entry .stats-entry-hint{display:inline-flex;align-items:center;margin:0 0 0 auto;font-size:11px;font-weight:600;line-height:1;color:#748078;white-space:nowrap}.learning-theme .student-mode.page-home .service-state{padding:6px 10px;border:1px solid #e6eee5;border-radius:99px;background:#fffefa;color:#718078;font-size:9px}.learning-theme .student-mode.page-home .service-state i{width:7px;height:7px;background:#61ca83}.learning-theme .student-mode.page-home .recent{margin-top:15px}.learning-theme .student-mode.page-home .recent .section-heading{margin-bottom:8px}.learning-theme .student-mode.page-home .recent .section-heading h2{font-size:15px}.learning-theme .student-mode.page-home .recent .record-list{gap:0;padding:0 14px;border:1px solid #eeeee7;border-radius:19px;background:#fffefa}.learning-theme .student-mode.page-home .recent .record{min-height:58px;padding:8px 0;border-bottom:1px solid #f0f0eb;border-radius:0}.learning-theme .student-mode.page-home .recent .record:last-child{border-bottom:0}.learning-theme .student-mode.page-home .recent .record-mark{position:relative;display:grid;place-items:center;flex:0 0 36px;width:36px;height:36px;padding:0;border-radius:9px}.learning-theme .student-mode.page-home .recent .record-copy strong{font-size:12px}.learning-theme .student-mode.page-home .recent .record-copy small{font-size:9px}.learning-theme .student-mode.page-home .recent .record-mark{display:grid;place-items:center;background:#e8f3ff}.learning-theme .student-mode.page-home .recent .record-mark{overflow:hidden}.learning-theme .student-mode.page-home .recent .record-mark img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply}.learning-theme .student-mode.page-home .recent .record-mark img{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:contain}.learning-theme .student-mode.page-home .recent .record-mark-note{color:#4885a0;background:#e8f3ff}.learning-theme .student-mode .bottom-nav button img{display:none}.learning-theme .student-mode .bottom-nav button svg{width:24px;height:24px;stroke-width:1.7;color:#596b85}.learning-theme .student-mode .bottom-nav button.active svg{color:#28794d;stroke-width:2}.learning-theme .student-mode .bottom-nav button.active{position:relative}@media (min-width:700px){.learning-theme .student-mode.page-home .topbar{height:64px}.learning-theme .student-mode.page-home .student-welcome{min-height:124px;padding:8px 0 15px}.learning-theme .student-mode.page-home .welcome h1{font-size:26px;font-weight:800}.learning-theme .student-mode.page-home .welcome-illustration{width:128px;height:118px}.learning-theme .student-mode.page-home .review-band{height:214px;padding:24px 28px}.learning-theme .student-mode.page-home .review-band .count{font-size:43px}.learning-theme .student-mode.page-home .review-illustration{width:164px;height:166px;margin-right:10px}.learning-theme .student-mode.page-home .home-shortcuts{gap:12px}.learning-theme .student-mode.page-home .home-shortcut{min-height:108px;padding:12px;gap:4px}.learning-theme .student-mode.page-home .home-shortcut-icon{width:58px;height:58px}.learning-theme .student-mode.page-home .home-shortcut strong{font-size:12px}.learning-theme .student-mode.page-home .recent{margin-top:12px}.learning-theme .student-mode.page-home .recent .record{min-height:54px}.learning-theme .student-mode.page-home .student-welcome{min-height:154px;padding-block:12px 18px}.learning-theme .student-mode.page-home .welcome h1{font-size:30px;font-weight:800}.learning-theme .student-mode.page-home .welcome-illustration{width:196px;height:160px}.learning-theme .student-mode.page-home .review-band{height:220px;padding:25px 30px}.learning-theme .student-mode.page-home .review-band .count{font-size:48px}.learning-theme .student-mode.page-home .review-illustration{width:195px;height:180px}.learning-theme .student-mode.page-home .home-shortcut{min-height:126px}.learning-theme .student-mode.page-home .home-shortcut-icon{width:68px;height:68px}.learning-theme .student-mode.page-home .recent{max-width:none}}.learning-theme .student-mode.page-home .student-welcome{position:relative;display:flex;align-items:center;justify-content:space-between;gap:10px;height:150px;min-height:150px;padding:0;overflow:visible}.learning-theme .student-mode.page-home .student-welcome .welcome-copy{position:relative;z-index:1;width:calc(100% - 170px);min-width:0;max-width:calc(100% - 170px);padding-right:0}.learning-theme .student-mode.page-home .student-welcome .welcome h1{font-size:23px;font-weight:800;line-height:1.4;white-space:nowrap;text-overflow:ellipsis}.learning-theme .student-mode.page-home .student-welcome .welcome .intro{max-width:100%;font-size:11px;line-height:1.6;white-space:normal}.learning-theme .student-mode.page-home .student-welcome .welcome-illustration{position:static;flex:none;width:150px;height:150px;margin:0;object-fit:contain;object-position:center;mix-blend-mode:multiply}.learning-theme .student-mode.page-home .review-band{box-sizing:border-box;height:198px;min-height:0;padding:16px 20px;gap:8px;border-radius:19px;background:#e7f7e9;border-color:#c7efd0;overflow:hidden}.learning-theme .student-mode.page-home .review-band .review-copy{position:relative;z-index:1;min-width:0;flex:1}.learning-theme .student-mode.page-home .review-band .label{display:flex;align-items:center;gap:7px;font-size:13px;font-weight:750;color:#14563e}.learning-theme .student-mode.page-home .review-band .count{margin-top:5px;font-size:42px;line-height:1;color:#087647}.learning-theme .student-mode.page-home .review-band .count small{font-size:12px;color:#39775c}.learning-theme .student-mode.page-home .review-band p{margin:5px 0 10px;font-size:10px;line-height:1.45;color:#5d7669}.learning-theme .student-mode.page-home .review-band p .overdue-count{color:#df5945;font-weight:750}.learning-theme .student-mode.page-home .review-band .primary{width:min(100%,198px);min-height:40px;padding:8px 16px;border-radius:999px;background:#31b778;box-shadow:none;font-size:12px}.learning-theme .student-mode.page-home .review-artwork{position:relative;align-self:stretch;display:flex;flex:0 0 154px;align-items:flex-end;justify-content:center;min-width:0}.learning-theme .student-mode.page-home .review-artwork .review-slogan{position:absolute;top:-4px;right:0;z-index:1;width:150px;height:94px;object-fit:contain}.learning-theme .student-mode.page-home .review-artwork .review-illustration{width:128px;height:134px;max-width:100%;margin:0 -3px -10px 0;object-fit:contain}@media (max-width:359px){.learning-theme .student-mode.page-home .student-welcome{height:132px;min-height:132px}.learning-theme .student-mode.page-home .student-welcome .welcome-copy{width:calc(100% - 132px);max-width:calc(100% - 132px)}.learning-theme .student-mode.page-home .student-welcome .welcome h1{font-size:19px}.learning-theme .student-mode.page-home .student-welcome .welcome .intro{font-size:9px}.learning-theme .student-mode.page-home .student-welcome .welcome-illustration{width:124px;height:132px}.learning-theme .student-mode.page-home .review-band{height:184px;padding:12px}.learning-theme .student-mode.page-home .review-artwork{flex-basis:106px}.learning-theme .student-mode.page-home .review-artwork .review-slogan{width:108px;height:76px}.learning-theme .student-mode.page-home .review-artwork .review-illustration{width:96px;height:102px;margin-bottom:-8px}.learning-theme .student-mode.page-home .home-shortcut-icon{width:48px;height:48px}.learning-theme .student-mode.page-home .review-band .count{font-size:36px}.learning-theme .student-mode.page-home .review-band .primary{min-height:35px;padding:6px 10px}}@media (min-width:700px){.learning-theme .student-mode.page-home .student-welcome{height:166px;min-height:166px}.learning-theme .student-mode.page-home .student-welcome .welcome-copy{width:calc(100% - 205px);max-width:calc(100% - 205px)}.learning-theme .student-mode.page-home .student-welcome .welcome h1{font-size:30px}.learning-theme .student-mode.page-home .student-welcome .welcome .intro{font-size:13px}.learning-theme .student-mode.page-home .student-welcome .welcome-illustration{width:166px;height:166px}.learning-theme .student-mode.page-home .review-band{height:210px;padding:18px 28px}.learning-theme .student-mode.page-home .review-artwork{flex-basis:176px}.learning-theme .student-mode.page-home .review-artwork .review-slogan{width:170px;height:108px}.learning-theme .student-mode.page-home .review-artwork .review-illustration{width:146px;height:154px;margin-bottom:-10px}.learning-theme .student-mode.page-home .review-band .count{font-size:48px}.learning-theme .student-mode.page-home .review-band .label{font-size:14px}.learning-theme .student-mode.page-home .review-band p{font-size:11px;margin:5px 0 11px}.learning-theme .student-mode.page-home .review-band .primary{min-height:42px;font-size:13px}}.learning-theme .page-detail .mistake-detail-screen{display:flex;flex-direction:column;gap:14px;max-width:680px;padding-top:8px;padding-bottom:28px}.learning-theme .page-detail .mistake-detail-header{display:flex;align-items:center;gap:12px;margin:0 0 3px;min-width:0}.learning-theme .page-detail .detail-back{display:grid;place-items:center;width:38px;height:38px;flex:none;padding:0;border:0;border-radius:50%;background:#f0f4e9;color:#54846b}.learning-theme .page-detail .mistake-detail-header>div{min-width:0}.learning-theme .page-detail .mistake-detail-header .page-title{margin:0;color:#304e43;font-size:22px;line-height:1.4;font-weight:800}.learning-theme .page-detail .mistake-detail-header p{margin:3px 0 0;color:#8b9689;font-size:12px;overflow-wrap:anywhere}.learning-theme .page-detail .detail-section{margin:0;padding:19px 17px;border:0;border-radius:22px;background:#fffefa;box-shadow:0 3px 16px #55694703}.learning-theme .page-detail .detail-question-text{display:none}.learning-theme .page-detail .detail-question-card .detail-question-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0 0 12px;color:#929b90;font-size:11px;line-height:1.5}.learning-theme .page-detail .detail-question-card .detail-question-text{margin:0;color:#3e564a;font-size:18px;line-height:1.75;white-space:pre-wrap}.learning-theme .page-detail .detail-images{display:grid;grid-template-columns:1fr;gap:10px;margin-top:10px}.learning-theme .page-detail .detail-images .image-preview-trigger{width:100%;min-width:0;max-height:none;border:0;border-radius:13px;background:#f4f5ee;overflow:hidden}.learning-theme .page-detail .detail-images img{display:block;width:100%;height:auto;max-height:340px;object-fit:contain}.learning-theme .page-detail .detail-images.is-multiple{grid-template-columns:repeat(auto-fill,minmax(min(100%,170px),1fr));gap:8px}.learning-theme .page-detail .detail-images.is-multiple .image-preview-trigger{position:relative;aspect-ratio:4/3;max-height:none;border-radius:11px;background:#f1f3ed}.learning-theme .page-detail .detail-images.is-multiple img{width:100%;height:100%;max-height:none;object-fit:contain}.learning-theme .page-detail .detail-images .detail-image-index{position:absolute;right:7px;bottom:7px;display:grid;place-items:center;min-width:22px;height:22px;padding:0 5px;border-radius:7px;background:#2e403bd9;color:#fffefa;font-size:10px;font-weight:650}.learning-theme .page-detail .detail-my-answer{display:flex;align-items:baseline;gap:12px;margin-top:14px;color:#8b978b;font-size:13px}.learning-theme .page-detail .detail-my-answer>span{flex:none}.learning-theme .page-detail .detail-my-answer p{min-width:0;margin:0;font-size:13px;white-space:pre-wrap;color:#748676}.learning-theme .page-detail .detail-tag-list{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px;font-size:10px;color:#73816d}.learning-theme .page-detail .detail-tag-list span{padding:4px 8px;border-radius:8px;background:#f1f4e9}.learning-theme .page-detail .detail-review-status{display:flex;justify-content:flex-start;align-items:center;gap:12px;margin:0;padding:16px 18px;border:0;border-radius:19px;background:#eaf4e7;box-shadow:none;color:#578b71}.learning-theme .page-detail .detail-review-status>svg{flex:none}.learning-theme .page-detail .detail-review-status>div{display:grid;gap:4px;min-width:0}.learning-theme .page-detail .detail-review-status strong{font-size:14px;color:#527e65}.learning-theme .page-detail .detail-review-status span{font-size:11px;color:#8c9c86}.learning-theme .page-detail .knowledge-panel{margin:0;background:#fffefa}.learning-theme .page-detail .knowledge-panel .section-heading{align-items:center;gap:8px;margin:0 0 12px}.learning-theme .page-detail .knowledge-panel .section-heading h2{margin:0;font-size:15px}.learning-theme .page-detail .knowledge-panel .section-heading>span{font-size:10px;color:#9ba494}.learning-theme .page-detail .knowledge-empty{margin:0 0 12px;color:#919d8e;font-size:12px}.learning-theme .page-detail .knowledge-link-list{display:grid;gap:9px}.learning-theme .page-detail .knowledge-link{border:0;padding:0;background:transparent;align-items:flex-start;gap:7px}.learning-theme .page-detail .knowledge-link>div{display:flex;flex-wrap:wrap;align-items:center;gap:6px;min-width:0}.learning-theme .page-detail .knowledge-link .knowledge-chapter-tag,.learning-theme .page-detail .knowledge-link .knowledge-topic-tag{display:inline-block;max-width:100%;margin:0;padding:7px 10px;border-radius:10px;font-size:11px;line-height:1.5;font-weight:600;overflow-wrap:anywhere}.learning-theme .page-detail .knowledge-chapter-tag{background:#e9f2f6;color:#7595a3}.learning-theme .page-detail .knowledge-topic-tag{background:#f8f0d8;color:#a18d57}.learning-theme .page-detail .knowledge-link small{width:100%;font-size:10px;color:#a0a799;line-height:1.6}.learning-theme .page-detail .knowledge-link>button{flex:none;width:28px;height:28px;border:0;border-radius:50%;background:#f1f4eb;color:#8c9d87}.learning-theme .page-detail .knowledge-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:12px}.learning-theme .page-detail .knowledge-actions button{display:flex;align-items:center;justify-content:center;min-height:36px;border:0;border-radius:11px;font-size:12px;font-weight:650;background:#f0f4e9;color:#64836a}.learning-theme .page-detail .knowledge-actions button.primary{background:#e6f1e4;color:#4c8462}.learning-theme .page-detail .knowledge-panel .knowledge-source-note{margin:10px 0 0;font-size:10px;line-height:1.65;color:#9ca594}.learning-theme .page-detail .detail-learning-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}.learning-theme .page-detail .detail-learning-actions button{display:flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:10px;border:0;border-radius:16px;font-size:13px;font-weight:650}.learning-theme .page-detail .detail-explain-button{background:#e8f3e8;color:#5b927b}.learning-theme .page-detail .detail-variant-button{background:#f8efdc;color:#b09563}.learning-theme .page-detail .detail-secondary-actions{display:flex;justify-content:space-between;gap:12px}.learning-theme .page-detail .detail-secondary-actions button{display:flex;align-items:center;gap:5px;min-height:36px;padding:4px;border:0;background:transparent;color:#8b988a;font-size:12px}.learning-theme .page-detail .correction-panel .correction-continue{display:grid;grid-template-columns:38px minmax(0,1fr) 18px;align-items:center;gap:12px;width:100%;min-height:68px;margin-top:16px;padding:12px 16px;border:1px solid #dce9dc;border-radius:15px;background:#edf5ea;color:#427b61;text-align:left;transition:background .16s ease,border-color .16s ease,transform .16s ease}.learning-theme .page-detail .correction-panel .correction-continue>svg:first-child{box-sizing:content-box;width:18px;height:18px;padding:10px;border-radius:12px;background:#dcecdf;color:#438467}.learning-theme .page-detail .correction-panel .correction-continue>span{display:grid;gap:3px;min-width:0}.learning-theme .page-detail .correction-panel .correction-continue strong{font-size:13px;line-height:1.4;font-weight:750}.learning-theme .page-detail .correction-panel .correction-continue small{color:#799181;font-size:10px;line-height:1.5}.learning-theme .page-detail .correction-panel .correction-continue .correction-continue-arrow{color:#7d9c86;transition:transform .16s ease}.learning-theme .page-detail .correction-panel .correction-continue:hover{transform:translateY(-1px);border-color:#bfd9c4;background:#e7f1e4}.learning-theme .page-detail .correction-panel .correction-continue:hover .correction-continue-arrow{transform:translate(3px)}.learning-theme .page-detail .correction-panel .correction-continue.is-completed{border-color:#e1e9d9;background:#f4f5e9;color:#728452}.learning-theme .page-detail .correction-panel .correction-continue.is-completed>svg:first-child{background:#e9ecd9;color:#859355}.learning-theme .mistake-entry-form .solution-editor{display:grid;gap:8px;min-width:0}.learning-theme .mistake-entry-form .solution-editor-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;color:#52675d;font-size:13px;font-weight:700}.learning-theme .mistake-entry-form .solution-editor-toggle{min-height:30px;padding:4px 9px;border:1px solid #dce7dc;border-radius:9px;background:#f2f6ef;color:#5b8568;font-size:11px;font-weight:650}.learning-theme .mistake-entry-form .solution-edit-preview{min-width:0;padding:12px 14px;border:1px solid #e3e9df;border-radius:13px;background:#fffefa}.learning-theme .mistake-entry-form .solution-edit-preview>span{display:block;margin-bottom:6px;color:#8a9989;font-size:10px;font-weight:650}.learning-theme .mistake-entry-form .solution-edit-preview .solution-markdown{font-size:13px;line-height:1.75}.learning-theme .mistake-entry-form .solution-edit-preview .solution-markdown .chat-markdown>*:first-child{margin-top:0}.learning-theme .mistake-entry-form .solution-edit-preview .solution-markdown .chat-markdown>*:last-child{margin-bottom:0}.learning-theme .page-detail .correction-summary .solution-markdown{margin-top:6px;font-size:13px;line-height:1.7;overflow-wrap:anywhere}.learning-theme .page-detail .modified-meta{margin:0;font-size:10px;color:#a1a99b}.learning-theme .page-detail .mistake-detail-screen button:focus-visible{outline:3px solid #76a58a80;outline-offset:3px}.learning-theme .page-detail .mistake-detail-screen button:disabled{opacity:.5}.learning-theme .page-detail :is(.detail-primary-column,.detail-side-column){display:contents}.learning-theme .page-detail .detail-question-card{order:1}.learning-theme .page-detail .review-panel{order:2}.learning-theme .page-detail .knowledge-panel{order:3}.learning-theme .page-detail .detail-learning-actions{order:4}.learning-theme .page-detail .detail-secondary-actions{order:5}.learning-theme .page-detail .correction-panel{order:6}.learning-theme .page-detail .modified-meta{order:7}@media (min-width:700px){.learning-theme .shell:is(.student-mode,.parent-mode).page-detail{width:min(100%,1120px);margin-block:0;min-height:100dvh;border-radius:0}.learning-theme .page-detail .mistake-detail-screen{width:100%;max-width:1024px}.learning-theme .page-detail .knowledge-actions button{min-height:42px}.learning-theme .shell:is(.student-mode,.parent-mode).page-detail{padding-bottom:calc(100px + env(safe-area-inset-bottom))}.learning-theme .page-detail{--study-nav-width:1120px}.learning-theme :is(.page-review,.page-form){--study-nav-width:1024px}.learning-theme .shell:is(.student-mode,.parent-mode).page-form{padding-bottom:calc(100px + env(safe-area-inset-bottom))}.learning-theme .shell:is(.student-mode,.parent-mode):is(.page-detail,.page-review,.page-form,.page-statistics)>.bottom-nav{position:fixed;bottom:0;left:50%;transform:translate(-50%);width:min(100%,var(--study-nav-width));max-width:none;height:auto;min-height:calc(76px + env(safe-area-inset-bottom));padding:10px clamp(22px,4vw,48px) calc(10px + env(safe-area-inset-bottom));border-radius:0;gap:12px}.learning-theme :is(.page-detail,.page-review,.page-form,.page-statistics) .bottom-nav button{min-height:54px;font-size:12px}.learning-theme :is(.page-detail,.page-review,.page-form,.page-statistics) .bottom-nav button svg{width:24px;height:24px}}@media (min-width:1000px){.learning-theme .page-detail .mistake-detail-screen{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(300px,1fr);gap:22px;align-items:start}.learning-theme .page-detail .mistake-detail-header{grid-column:1/-1}.learning-theme .page-detail :is(.detail-primary-column,.detail-side-column){display:flex;flex-direction:column;gap:18px;min-width:0}.learning-theme .page-detail .detail-primary-column{grid-column:1}.learning-theme .page-detail .detail-side-column{grid-column:2}.learning-theme .page-detail .detail-primary-column .correction-panel{order:4}.learning-theme .page-detail .review-panel .section-heading{flex-wrap:wrap;gap:6px}.learning-theme .page-detail .detail-review-status{flex-wrap:wrap}.learning-theme .page-detail .detail-review-status>div{flex:1;min-width:140px}.learning-theme .page-detail .detail-review-status>button{width:100%;min-height:42px}.learning-theme .page-detail .detail-question-card .detail-images.is-multiple{grid-template-columns:1fr}}.learning-theme .knowledge-picker-sheet .knowledge-picker-actions{display:grid;grid-template-columns:1fr 1.25fr;gap:10px;margin-top:20px;padding-top:16px;border-top:1px solid #e6ebe1}.learning-theme .knowledge-picker-sheet .knowledge-picker-actions button{min-height:46px;border-radius:14px;font-size:13px;font-weight:700;transition:transform .15s ease,background .15s ease,box-shadow .15s ease}.learning-theme .knowledge-picker-sheet .knowledge-picker-actions button.secondary{border:1px solid #dce6dc;background:#f4f7f0;color:#5d7564}.learning-theme .knowledge-picker-sheet .knowledge-picker-actions button.primary{border:1px solid #79a98d;background:#4f9078;color:#fff;box-shadow:0 5px 12px #4f907826}.learning-theme .knowledge-picker-sheet .knowledge-picker-actions button:not(:disabled):hover{transform:translateY(-1px)}.learning-theme .knowledge-picker-sheet .knowledge-picker-actions button:not(:disabled):active{transform:translateY(1px)}.learning-theme .knowledge-picker-sheet .knowledge-picker-actions button:disabled{opacity:.48;box-shadow:none}.learning-theme .knowledge-picker-sheet .knowledge-picker-actions button:focus-visible{outline:3px solid #75a58a66;outline-offset:3px}@media (max-width:360px){.learning-theme .knowledge-picker-sheet .knowledge-picker-actions{gap:8px}.learning-theme .knowledge-picker-sheet .knowledge-picker-actions button{min-height:44px;font-size:12px}}@media (min-width:700px){.learning-theme .page-detail .mistake-detail-screen{padding-top:22px;gap:18px}.learning-theme .page-detail .detail-section{padding:24px;border-radius:24px}.learning-theme .page-detail .detail-images img{max-height:460px}.learning-theme .page-detail .detail-images.is-multiple{grid-template-columns:repeat(auto-fill,minmax(min(100%,190px),1fr))}.learning-theme .page-detail .detail-learning-actions button{min-height:56px}}.learning-theme .page-detail .knowledge-panel .detail-chapter-note{margin:0 0 10px;font-size:11px;color:#849782;overflow-wrap:anywhere}.learning-theme .document-library{padding:14px 4px 30px}.learning-theme .document-library .list-title-row{align-items:center;gap:12px;margin:0 0 14px}.learning-theme .document-library .list-title-row .page-title{margin:0;font-size:25px;line-height:1.3;font-weight:800;color:#30483d}.learning-theme .document-library .list-title-row .page-subtitle{margin:4px 0 0;font-size:11px;line-height:1.5;color:#87928b}.learning-theme .document-library .add-button{height:36px;min-height:36px;min-width:0;padding:0 13px;border-radius:999px;font-size:11px;white-space:nowrap;box-shadow:0 3px 9px #39785a18}.learning-theme .document-library .document-search{height:44px;margin-bottom:14px;padding-inline:13px;border:1px solid #e4e9df;border-radius:14px;background:#fffefa;box-shadow:0 3px 12px #667b5d08}.learning-theme .document-library .document-search svg{width:17px;height:17px;color:#829187}.learning-theme .document-library .document-search input{font-size:12px;color:#465d51}.learning-theme .document-library .document-subject-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:0}.learning-theme .document-library .document-subject-grid .mistake-subject-tile{position:relative;box-sizing:border-box;min-width:0;min-height:91px;height:91px;display:flex;flex-direction:column;align-items:flex-start;gap:3px;overflow:hidden;padding:10px;border:0;border-radius:16px;box-shadow:none;text-align:left}.learning-theme .document-library .document-subject-grid .mistake-subject-tile:before,.learning-theme .document-library .document-subject-grid .mistake-subject-tile:after{display:none}.learning-theme .document-library .document-subject-grid .mistake-subject-tile>.subject-art-icon{position:absolute;top:50%;right:5px;width:62px;height:62px;transform:translateY(-50%);object-fit:contain;mix-blend-mode:normal}.learning-theme .document-library .document-subject-grid .mistake-subject-tile>strong{max-width:calc(100% - 53px);margin:0;font-size:13px;line-height:1.35;font-weight:750;color:#36473e}.learning-theme .document-library .document-subject-grid .mistake-subject-tile>.subject-tile-count{display:flex;align-items:center;gap:3px;margin-top:5px;font-size:10px;line-height:1.25;font-weight:750;color:#378267}.learning-theme .document-library .document-subject-grid .mistake-subject-tile>small{max-width:calc(100% - 50px);margin-top:auto;overflow:hidden;font-size:8px;line-height:1.2;color:#78867d;opacity:1;text-overflow:ellipsis;white-space:nowrap}.learning-theme .document-library .document-list{margin-top:14px}.learning-theme .document-library .document-list .document-row{min-height:66px;padding:14px 16px;border-radius:16px}.learning-theme .document-library .document-list .document-file-icon{width:44px;height:48px;border-radius:12px}@media (max-width:359px){.learning-theme .document-library{padding-inline:0}.learning-theme .document-library .list-title-row .page-title{font-size:23px}.learning-theme .document-library .document-subject-grid{gap:7px}.learning-theme .document-library .document-subject-grid .mistake-subject-tile{height:88px;min-height:88px;padding:9px}.learning-theme .document-library .document-subject-grid .mistake-subject-tile>.subject-art-icon{right:3px;width:54px;height:54px}.learning-theme .document-library .document-subject-grid .mistake-subject-tile>strong{font-size:12px}.learning-theme .document-library .document-subject-grid .mistake-subject-tile>small{font-size:7px}}@media (min-width:700px){.learning-theme .document-library{max-width:850px;margin-inline:auto}.learning-theme .document-library .document-subject-grid{gap:12px}.learning-theme .document-library .document-subject-grid .mistake-subject-tile{height:96px;min-height:96px;padding:12px 14px;border-radius:17px}.learning-theme .document-library .document-subject-grid .mistake-subject-tile>.subject-art-icon{right:7px;width:68px;height:68px}}.learning-theme .chat-list-screen{padding:18px 4px 30px}.learning-theme .chat-list-screen>.eyebrow{display:none}.learning-theme .chat-list-screen .list-title-row{align-items:flex-end;margin:0 0 26px;gap:12px}.learning-theme .chat-list-screen .list-title-row>div:first-child{min-width:0;display:grid;grid-template-columns:54px minmax(0,1fr);grid-template-rows:auto auto;column-gap:12px;align-items:center}.learning-theme .chat-list-screen .list-title-row>div:first-child:before{content:"✦";grid-column:1;grid-row:1 / 3;width:54px;height:54px;display:grid;place-items:center;border-radius:18px;background:#e4f2e5;color:#4c8c70;font-size:26px}.learning-theme .chat-list-screen .list-title-row .page-title{grid-column:2;margin:0;color:#30483d;font-size:25px;line-height:1.3;font-weight:800}.learning-theme .chat-list-screen .list-title-row .page-subtitle{grid-column:2;margin:3px 0 0;color:#87928b;font-size:11px;line-height:1.5}.learning-theme .chat-list-screen .chat-list-heading-actions{align-self:center;flex:none}.learning-theme .chat-list-screen .chat-manage-button{height:38px;min-height:38px;padding:0 12px;border-radius:14px;background:#fffefa;font-size:11px}.learning-theme .chat-list-screen .add-button{height:42px;min-height:42px;padding:0 15px;border-radius:16px;font-size:12px}.learning-theme .chat-list-screen .chat-history-list:before{content:"最近对话";display:block;margin:0 0 13px;color:#40584b;font-size:16px;font-weight:800}.learning-theme .chat-list-screen .chat-history-list{gap:11px}.learning-theme .chat-list-screen .chat-history-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;min-height:86px;margin:0;padding:13px 12px;border:1px solid #e9ece2;border-radius:22px;background:#fffefa;box-shadow:var(--soft-shadow)}.learning-theme .chat-list-screen .chat-history-row:has(.chat-select){grid-template-columns:25px minmax(0,1fr)}.learning-theme .chat-list-screen .chat-history-open{width:100%;min-width:0;display:flex;flex:none;align-items:center;gap:12px}.learning-theme .chat-list-screen .chat-select+.chat-history-open{grid-column:2;grid-row:1}.learning-theme .chat-list-screen .chat-history-icon{width:52px;height:52px;border-radius:17px;background:#e6f3e8;color:#568c70}.learning-theme .chat-list-screen .chat-history-row:nth-of-type(3n) .chat-history-icon{background:#e4eff4;color:#648a97}.learning-theme .chat-list-screen .chat-history-row:nth-of-type(4n) .chat-history-icon{background:#f7eadc;color:#b07a53}.learning-theme .chat-list-screen .chat-history-icon svg{width:23px;height:23px;stroke-width:1.8}.learning-theme .chat-list-screen .chat-history-copy{min-width:0;flex:1}.learning-theme .chat-list-screen .chat-history-copy strong{font-size:13px;line-height:1.4;font-weight:800;color:#344f43}.learning-theme .chat-list-screen .chat-history-copy small{margin-top:4px;color:#89968d;font-size:10px;line-height:1.55;white-space:normal;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow-wrap:anywhere}.learning-theme .chat-list-screen .chat-row-delete{width:38px;height:38px;align-self:center;border-radius:14px;background:#fffefa}@media (max-width:560px){.learning-theme .chat-list-screen{padding-top:14px}.learning-theme .chat-list-screen .list-title-row{margin-bottom:24px}.learning-theme .chat-list-screen .list-title-row>div:first-child{grid-template-columns:48px minmax(0,1fr);column-gap:10px}.learning-theme .chat-list-screen .list-title-row>div:first-child:before{width:48px;height:48px;border-radius:16px;font-size:23px}.learning-theme .chat-list-screen .list-title-row .page-title{font-size:23px}.learning-theme .chat-list-screen .chat-manage-button{display:block}.learning-theme .chat-list-screen .chat-history-row{min-height:82px;padding:12px 10px;border-radius:20px}.learning-theme .chat-list-screen .chat-history-icon{width:48px;height:48px;border-radius:15px}}.learning-theme .chat-list-screen .chat-list-intro{display:flex;align-items:center;gap:12px;margin-bottom:20px}.learning-theme .chat-list-screen .chat-brand-icon{width:48px;height:48px;display:grid;place-items:center;flex:none;border-radius:17px;background:#e4f2e5;color:#4c8c70}.learning-theme .chat-list-screen .chat-list-intro .page-title{margin:0;font-size:25px;line-height:1.3;font-weight:800;color:#30483d}.learning-theme .chat-list-screen .chat-list-intro .page-subtitle{margin:4px 0 0;font-size:11px;line-height:1.6;color:#87928b}.learning-theme .chat-list-screen .chat-list-toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:15px}.learning-theme .chat-list-screen .chat-list-toolbar h2{margin:0;font-size:16px;color:#40584b}.learning-theme .chat-list-screen .chat-history-list:before{display:none}.learning-theme .chat-list-screen .chat-history-row{border:0;padding:15px;border-radius:22px}.learning-theme .chat-list-screen .chat-history-open{display:grid;grid-template-columns:42px minmax(0,1fr);gap:8px 11px}.learning-theme .chat-list-screen .chat-history-icon{width:42px;height:42px;border-radius:14px}.learning-theme .chat-list-screen .chat-history-row.chat-scope-mistake .chat-history-icon{background:#e4f2e5;color:#548b6c}.learning-theme .chat-list-screen .chat-history-row.chat-scope-document .chat-history-icon{background:#e3eff5;color:#688d99}.learning-theme .chat-list-screen .chat-history-row.chat-scope-general .chat-history-icon{background:#f5e8d9;color:#8c9672}.learning-theme .chat-list-screen .chat-history-excerpt{grid-column:1 / -1;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;color:#89968c;font-size:11px;line-height:1.65;overflow-wrap:anywhere}.learning-theme .chat-list-screen .chat-row-delete{width:30px;height:30px;border-color:#f1e6df;background:transparent;border-radius:11px}@media (max-width:359px){.learning-theme .chat-list-screen .chat-list-heading-actions{gap:6px}.learning-theme .chat-list-screen .add-button{padding-inline:11px}.learning-theme .chat-list-screen .chat-history-row{padding:12px}}.learning-theme .student-mode.page-home .welcome{padding-top:10px;padding-bottom:6px}.learning-theme .student-mode.page-home .student-welcome{padding-top:0;padding-bottom:0}.learning-theme .student-mode.page-home .review-band{margin-top:0}.learning-theme .page-chat>.chat-screen{padding-top:8px}.learning-theme .page-chat>.chat-screen .backline{height:38px;margin:0 0 4px;display:flex;align-items:center;justify-content:space-between}.learning-theme .page-chat>.chat-screen .chat-delete{width:36px;height:36px;flex:none;margin:0}.learning-theme .page-chat>.chat-screen>.eyebrow{margin:0 0 4px;font-size:9px;line-height:1.3}.learning-theme .page-chat>.chat-screen>.chat-title{margin:0 0 8px;font-size:27px;line-height:1.25}.learning-theme .page-chat>.chat-screen>.chat-title+.page-subtitle{margin:0 0 8px;font-size:11px;line-height:1.45}.learning-theme .statistics-screen{padding-top:8px}.learning-theme .statistics-screen>.back-button{min-height:36px;padding:0 8px;border:0;background:transparent;color:#58806b;font-size:12px}.learning-theme .statistics-screen .stats-heading{margin:8px 0 18px;padding:0 0 15px;border-bottom:1px solid #e9ede2}.learning-theme .statistics-screen .stats-heading .eyebrow{margin:0 0 4px;font-size:9px;line-height:1.3;letter-spacing:1.5px}.learning-theme .statistics-screen .stats-heading .page-title{margin:0;color:#344f43;font-size:27px;line-height:1.25;font-weight:800}.learning-theme .statistics-screen .stats-heading .page-subtitle{margin:5px 0 0;color:#829087;font-size:11px;line-height:1.6}.learning-theme .statistics-screen .stats-refresh{width:40px;height:40px;border:1px solid #e3eadd;border-radius:14px;background:#f1f5eb;color:#5d896b}.learning-theme .statistics-screen .stats-student-select{margin:0 0 14px;color:#607268;font-size:11px}.learning-theme .statistics-screen select{min-height:42px;border:1px solid #e2e8dd;border-radius:13px;background:#fffefa;color:#40584b;font-size:11px}.learning-theme .statistics-screen .stats-toolbar{gap:9px}.learning-theme .statistics-screen .stats-periods{min-width:0;padding:4px;border:1px solid #e5eadf;border-radius:14px;background:#edf2e8}.learning-theme .statistics-screen .stats-periods button{min-height:38px;border-radius:11px;color:#758278;font-size:11px}.learning-theme .statistics-screen .stats-periods button.active{background:#fffefa;color:#47795e;box-shadow:0 2px 8px #52694d12;font-weight:700}.learning-theme .statistics-screen .stats-subject{max-width:160px}.learning-theme .statistics-screen .stats-range{display:flex;flex-wrap:wrap;align-items:center;gap:4px 12px;margin:14px 0 21px;padding:9px 12px;border:1px solid #e7ebdf;border-radius:12px;background:#f7f8f1;color:#536b5b;font-size:11px}.learning-theme .statistics-screen .stats-range span{color:#8a958b;font-size:10px}.learning-theme .statistics-screen .stats-section-title{margin-bottom:12px}.learning-theme .statistics-screen .stats-section-title h2,.learning-theme .statistics-screen .stats-section-title h3{color:#3d5949;font-size:14px;font-weight:750}.learning-theme .statistics-screen .stats-section-title>span{color:#879288;font-size:10px;line-height:1.5}.learning-theme .statistics-screen .stats-metrics{gap:9px}.learning-theme .statistics-screen .stats-metrics article{min-height:96px;padding:14px 13px;border:1px solid #e3e9df;border-radius:17px;background:#f7f8f1;box-shadow:0 4px 14px #63765a08}.learning-theme .statistics-screen .stats-metrics article:nth-child(1){background:#edf5e8;border-color:#dce9d7}.learning-theme .statistics-screen .stats-metrics article:nth-child(2){background:#eef4f5;border-color:#dfe9e9}.learning-theme .statistics-screen .stats-metrics article:nth-child(3){background:#f8efeb;border-color:#efe3dd}.learning-theme .statistics-screen .stats-metrics article:nth-child(4){background:#f8f3e5;border-color:#eee7d4}.learning-theme .statistics-screen .stats-metrics small{color:#718074;font-size:10px;font-weight:600}.learning-theme .statistics-screen .stats-metrics strong{margin-top:12px;color:#355443;font-size:29px;font-weight:750;letter-spacing:-.6px}.learning-theme .statistics-screen .stats-current{margin:14px 0 22px;padding:15px;border:1px solid #e2e9dc;border-radius:18px;background:#f5f7ef}.learning-theme .statistics-screen .stats-current>div{gap:8px}.learning-theme .statistics-screen .stats-current strong{color:#405b49;font-size:12px}.learning-theme .statistics-screen .stats-current small{font-size:9px}.learning-theme .statistics-screen .stats-live-dot{width:8px;height:8px;box-shadow:0 0 0 4px #e3eee0}.learning-theme .statistics-screen .stats-current dl{gap:8px;margin-top:14px}.learning-theme .statistics-screen .stats-current dl>div{padding:9px 10px;border:1px solid #e7ebdf;border-radius:12px;background:#fffefa}.learning-theme .statistics-screen .stats-current dl>div+div{border-left:1px solid #e7ebdf;padding-left:10px}.learning-theme .statistics-screen .stats-current dt{color:#839087;font-size:10px}.learning-theme .statistics-screen .stats-current dd{margin-top:6px;color:#385944;font-size:21px;font-weight:750}.learning-theme .statistics-screen .stats-current dl>div:nth-child(2) dd{color:#b6735c}.learning-theme .statistics-screen .stats-current dl>div:nth-child(3) dd{color:#66856a}.learning-theme .statistics-screen .stats-card{margin:12px 0;padding:16px 14px;border:1px solid #e7ebdf;border-radius:19px;background:#fffefa;box-shadow:0 5px 18px #647b5e08}.learning-theme .statistics-screen .stats-trend-card{margin-top:0}.learning-theme .statistics-screen .stats-trend-card .stats-section-title>svg{color:#6d9672}.learning-theme .statistics-screen .stats-legend{gap:11px;color:#79877c;font-size:10px}.learning-theme .statistics-screen .stats-legend>span:first-child i{background:#538b68}.learning-theme .statistics-screen .stats-legend>span:nth-child(2) i{background:#d09a59}.learning-theme .statistics-screen .stats-trend{margin-top:14px}.learning-theme .statistics-screen .stats-caption{color:#879188;font-size:10px;line-height:1.7}.learning-theme .statistics-screen .stats-two-columns{gap:12px}.learning-theme .statistics-screen .stats-two-columns .stats-card{margin:12px 0}.learning-theme .statistics-screen .stats-bars li{margin:16px 0}.learning-theme .statistics-screen .stats-track{height:7px;background:#edf1e9}.learning-theme .statistics-screen .stats-track i{border-radius:8px;background:#73a17b}.learning-theme .statistics-screen .rating-fuzzy .stats-track i{background:#d0a158}.learning-theme .statistics-screen .rating-unknown .stats-track i{background:#c77e69}.learning-theme .statistics-screen .stats-knowledge{margin-top:24px;padding:17px 14px 5px;border:1px solid #e5eadf;border-radius:20px;background:#f3f6ed}.learning-theme .statistics-screen .stats-knowledge>.stats-section-title{margin-bottom:8px}.learning-theme .statistics-screen .stats-knowledge>.stats-caption{margin:0 0 13px}.learning-theme .statistics-screen .stats-scope-filters{gap:9px;margin:12px 0}.learning-theme .statistics-screen .stats-scope-filters label{gap:6px;color:#718074;font-size:10px;font-weight:650}.learning-theme .statistics-screen .stats-kind{padding:4px;border-radius:13px;background:#edf2e8}.learning-theme .statistics-screen .stats-kind button{min-height:35px;border:0;border-radius:10px;background:transparent;color:#7e8b80;font-size:10px}.learning-theme .statistics-screen .stats-kind button[aria-pressed=true]{background:#fffefa;color:#4b7e61;box-shadow:0 2px 7px #52694d12;font-weight:700}.learning-theme .statistics-screen .stats-attention{margin:12px 0;padding:15px 13px}.learning-theme .statistics-screen .stats-attention-list>li{padding:15px 0}.learning-theme .statistics-screen .stats-topic-title h4{color:#405a4a;font-size:12px;font-weight:700}.learning-theme .statistics-screen .stats-badge{border-radius:7px;background:#f4f0e2;color:#8b7650}.learning-theme .statistics-screen .stats-show-more{border-radius:12px;background:#edf3e8;color:#4e7d5d}.learning-theme .statistics-screen .stats-footer{margin-top:17px;color:#8b958b;font-size:9px}@media (min-width:900px){.learning-theme .statistics-screen{padding-inline:22px}.learning-theme .statistics-screen .stats-heading{margin-bottom:22px}.learning-theme .statistics-screen .stats-metrics article{min-height:108px;padding:16px 17px}.learning-theme .statistics-screen .stats-two-columns{gap:16px}.learning-theme .statistics-screen .stats-two-columns .stats-card{margin:0}.learning-theme .statistics-screen .stats-knowledge{padding:20px 18px 7px}}@media (max-width:359px){.learning-theme .statistics-screen .stats-subject{max-width:none}.learning-theme .statistics-screen .stats-metrics{gap:7px}.learning-theme .statistics-screen .stats-metrics article{min-height:88px;padding:12px 10px}.learning-theme .statistics-screen .stats-metrics strong{font-size:26px}.learning-theme .statistics-screen .stats-current{padding:12px}.learning-theme .statistics-screen .stats-current dl{gap:5px}.learning-theme .statistics-screen .stats-current dl>div{padding:8px 7px}.learning-theme .statistics-screen .stats-current dl>div+div{padding-left:7px}.learning-theme .statistics-screen .stats-knowledge{padding-inline:11px}}.learning-theme .brand-mark{overflow:hidden}.learning-theme .brand-mark img{display:block;width:100%;height:100%;object-fit:contain}.learning-theme .page-detail .detail-review-status{flex-wrap:wrap}.learning-theme .page-detail .detail-review-status>div{flex:1;min-width:180px}.learning-theme .page-detail .detail-review-status>.primary{margin-left:auto;flex-shrink:0}.learning-theme .page-review .review-redo{min-height:0}.learning-theme .page-review .review-redo>h2{margin:0 0 6px;font-size:14px;line-height:1.5}.learning-theme .page-review .review-redo>p{margin:0 0 12px;color:#6d7c72;font-size:13px;line-height:1.6;white-space:normal}.learning-theme .review-result-feedback{margin:20px 0;padding:28px 22px;border:1px solid #dce7d9;border-radius:22px;background:#fffefa}.review-result-icon{display:flex;align-items:center;justify-content:center;width:48px;height:48px;margin-bottom:16px;border-radius:50%;background:#e7f4e9;color:#347856}.review-result-feedback h1{margin:0;font-size:21px;line-height:1.5;color:#314e3e}.review-result-question{margin:8px 0 16px;color:#738175;font-size:13px;line-height:1.6;overflow-wrap:anywhere}.review-result-rating{display:inline-block;padding:5px 10px;border-radius:8px;background:#edf4e9;color:#4e7055;font-size:12px}.review-result-tip{margin:16px 0;color:#617568;font-size:13px;line-height:1.75}.review-result-date{display:grid;gap:7px;margin:18px 0;padding:14px 16px;border-radius:12px;background:#f1f5ed}.review-result-date span{font-size:12px;color:#748272}.review-result-date strong{font-size:17px;color:#365c43}.review-result-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.review-result-actions button{flex:1 1 150px;min-height:44px;font-size:13px}.result-unknown .review-result-icon,.result-fuzzy .review-result-icon,.result-incorrect .review-result-icon,.result-prompted_correct .review-result-icon{background:#f7efdd;color:#98713d}.learning-theme .practices-screen .practices-intro .page-title{font-size:23px;color:#30483d}@media (max-width:380px){.learning-theme .practices-screen .practices-intro .page-title{font-size:21px}}.learning-theme .chat-list-screen .chat-search{height:44px;margin:0 0 14px;padding-inline:13px;border:1px solid #e4e9df;border-radius:14px;background:#fffefa;box-shadow:0 3px 12px #667b5d08;color:#829187}.learning-theme .chat-list-screen .chat-search input{font-size:12px;color:#465d51}.learning-theme .chat-list-screen .chat-search svg{width:17px;height:17px}.learning-theme .chat-list-screen .chat-search-clear{background:#eef2ec;color:#7c8b81}.learning-theme .chat-list-screen .chat-row-actions{align-self:center}.learning-theme .chat-list-screen .chat-row-rename{width:30px;height:30px;border-color:#e0e9df;background:transparent;border-radius:11px;color:#6d8676}.learning-theme .page-chat>.chat-screen .chat-header-actions{display:flex;align-items:center;gap:8px}.learning-theme .page-chat>.chat-screen .chat-rename{width:36px;height:36px;border-radius:12px;background:#fffefa;color:#5d7d6c}.learning-theme .mistake-taxonomy-filters .cause-filter select{height:42px;border:1px solid #e0e6db;border-radius:13px;background:#fffefa;color:var(--ink);font-size:11px}.learning-theme .mistake-taxonomy-filters .cause-filter select:focus-visible{outline:3px solid #167d7060;outline-offset:2px}.learning-theme .student-mode.page-mistakes .mistake-taxonomy-filters .cause-filter select{height:30px;min-height:30px;padding:0 9px;border:0;border-radius:10px;background:#fffefa;color:#748078;font-size:9px}.learning-theme .student-mode.page-mistakes .mistake-secondary-filters{grid-template-columns:repeat(3,minmax(0,1fr))}.learning-theme .student-mode.page-mistakes .mistake-taxonomy-filters{display:contents}*::-webkit-scrollbar{display:none}html,body,.shell{scrollbar-width:none;-ms-overflow-style:none}.avatar-picker-sheet,.answer-editor-sheet,.knowledge-picker-sheet,.confirm-sheet,.password-sheet,.family-create-sheet,.question-meta-list,.question-meta-sheet,.question-sheet-stage,.question-crop-preview>div,.conflict-preview p,.crop-stage,.page-chat .chat-messages,.explanation-answer,.explanation-sheet,.variant-sheet,.chat-markdown pre,.chat-markdown table,.chat-markdown .katex-display,.solution-markdown .katex-display,.admin-table-wrap{scrollbar-width:none;-ms-overflow-style:none}@media (min-width:700px){.learning-theme .auth-shell.auth-splash{width:min(100%,960px);min-height:100dvh;margin-block:0;padding:env(safe-area-inset-top) 40px 32px;border:0;border-radius:0}.learning-theme .auth-splash .auth-brand{width:100%;max-width:none;flex:none;margin:0}.learning-theme .auth-splash-body{padding-block:48px 96px}.learning-theme .auth-splash-body h1{font-size:24px}.learning-theme .auth-splash-body p{font-size:13px}.learning-theme .auth-splash-loader{width:44px;height:44px}.learning-theme .auth-login-shell{width:min(100%,720px);padding-inline:40px;padding-block:60px 46px}.learning-theme .auth-login-content{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:40px;align-items:center}.learning-theme .auth-login-content .auth-hero{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:22px;min-height:0;margin:0;padding:10px 0}.learning-theme .auth-welcome-art{width:180px;height:186px}.learning-theme .auth-login-content .auth-hero-copy h1{font-size:40px;line-height:1.25}.learning-theme .auth-login-content .auth-hero-copy .intro{font-size:14px;line-height:1.75}.learning-theme .auth-login-content .auth-panel{padding:34px 30px 36px;border-radius:28px}.learning-theme .auth-login-content .auth-note{grid-column:1 / -1;margin:0}.learning-theme .auth-login-shell .auth-footer{margin-top:44px}}@media (min-width:1024px){.learning-theme .auth-login-shell{width:min(100%,880px);padding-inline:56px}.learning-theme .auth-login-content{gap:60px}}@media (min-width:700px){.learning-theme .shell.student-mode:is(.page-documents,.page-document,.page-document-upload,.page-me){width:min(100%,960px);padding-inline:32px;margin-block:0;min-height:100dvh;border-radius:0}.learning-theme .student-mode:is(.page-documents,.page-document,.page-document-upload,.page-me) .bottom-nav{width:min(100%,960px)}.learning-theme .document-library{max-width:880px;padding-top:24px}.learning-theme .document-library .document-subject-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.learning-theme .document-library .document-list{grid-template-columns:repeat(2,minmax(0,1fr))}.learning-theme .document-detail-screen{max-width:900px;margin-inline:auto;padding-top:24px}.learning-theme .document-upload-screen{max-width:720px;margin-inline:auto;padding-top:24px}.learning-theme .me-screen{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:12px 28px;align-items:start;padding-top:24px}.learning-theme .me-screen>.eyebrow,.learning-theme .me-screen>.page-title{grid-column:1 / -1}.learning-theme .me-screen .me-main{grid-column:1;min-width:0}.learning-theme .me-screen .me-main .me-profile{margin:0}.learning-theme .me-screen .me-actions{grid-column:2;margin:0}.learning-theme .me-screen .me-actions .action{min-height:88px}}@media (min-width:700px){.learning-theme .shell.page-account{width:min(100%,960px);margin-block:0;min-height:100dvh;border-radius:0;padding-inline:32px}.learning-theme .page-account .bottom-nav{width:min(100%,960px)}.learning-theme .account-screen .account-actions{grid-template-columns:minmax(0,1fr);max-width:760px}.learning-theme .account-screen .account-actions .action{width:100%;min-width:0;justify-content:flex-start}.learning-theme .account-screen .account-actions .action>span:last-child{min-width:0;flex:1}.learning-theme .account-screen .account-actions .action strong,.learning-theme .account-screen .account-actions .action small{overflow-wrap:anywhere}}@media (min-width:700px) and (max-width:899px){.learning-theme .shell.page-account{padding-inline:22px}}@media (min-width:700px) and (max-width:899px){.learning-theme .me-screen{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}}@media (min-width:700px){.learning-theme .shell.student-mode.page-account{width:min(100%,960px);max-width:960px;margin:0 auto;min-height:100dvh;padding-inline:32px;border-radius:0}.learning-theme .shell.student-mode.page-account>.bottom-nav{position:fixed;left:50%;width:min(100%,960px);max-width:960px;transform:translate(-50%);border-radius:0}.learning-theme .shell.student-mode.page-account .account-screen{max-width:760px;margin-inline:auto}.learning-theme .shell.student-mode.page-account .account-screen .account-actions{grid-template-columns:minmax(0,1fr);max-width:none}.learning-theme .shell.student-mode.page-account .account-screen .account-actions .action{width:100%;min-width:0}.learning-theme .shell.student-mode.page-account .account-screen .account-actions .action>span:last-child{min-width:0;flex:1}}@media (min-width:700px){.learning-theme .shell.student-mode.page-pet>.bottom-nav{position:fixed;left:50%;width:min(100%,960px);max-width:960px;transform:translate(-50%);border-radius:0}}@media (min-width:700px) and (max-width:899px){.learning-theme .shell.student-mode.page-account{padding-inline:22px}}.learning-theme .pet-screen{padding-top:8px;padding-bottom:34px}.learning-theme .pet-screen .back-button{margin-bottom:2px}.learning-theme .pet-heading{margin:6px 0 14px}.learning-theme .pet-heading .eyebrow{margin:0 0 4px;line-height:1.3}.learning-theme .pet-heading .page-title{margin:0;font-size:24px;line-height:1.25}.learning-theme .pet-heading .page-subtitle{margin:5px 0 0;color:#748078;font-size:11px;line-height:1.7}.learning-theme .pet-loading{display:flex;align-items:center;gap:12px;padding:46px 4px;color:#5c6f61}.learning-theme .pet-loading strong{display:block;font-size:14px}.learning-theme .pet-loading small{display:block;margin-top:4px;color:#8b968c;font-size:11px}.learning-theme .pet-image-fallback{display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#e7f2e6,#faf2dc);color:#5d8a69;font-weight:700;border-radius:50%;aspect-ratio:1}.learning-theme .pet-pick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.learning-theme .pet-pick-card{display:flex;flex-direction:column;align-items:center;gap:6px;padding:12px 8px 10px;border:1px solid #e6eadf;border-radius:18px;background:var(--card);box-shadow:var(--soft-shadow);transition:border-color .16s ease,transform .16s ease}.learning-theme .pet-pick-card.selected{border-color:#7ba581;background:#f1f8ed}.learning-theme .pet-pick-image{width:64px;height:64px;object-fit:contain}.learning-theme .pet-pick-card strong{font-size:12px;font-weight:650;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.learning-theme .pet-pick-card span{display:inline-flex;align-items:center;gap:3px;color:#8a968d;font-size:10px}.learning-theme .pet-pick-card.selected span{color:#4e8a61}.learning-theme .pet-pick-actions{display:flex;gap:10px;margin-top:18px}.learning-theme .pet-pick-start{flex:1;min-height:46px}.learning-theme .pet-summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:4px 0 14px}.learning-theme .pet-summary-item{display:flex;align-items:center;gap:10px;padding:13px 12px;border:1px solid #e6eadf;border-radius:18px;background:var(--card);box-shadow:var(--soft-shadow);min-width:0}.learning-theme .pet-summary-icon{display:flex;align-items:center;justify-content:center;width:34px;height:34px;flex:none;border-radius:11px;background:#eaf2f7;color:#5b86a0}.learning-theme .pet-summary-icon.primary{background:#e7f2e6;color:#4e8a61}.learning-theme .pet-summary-item strong{display:block;font:700 18px/1.2 DM Sans,sans-serif;color:#3d5648;white-space:nowrap}.learning-theme .pet-summary-item strong em{font-style:normal;font-size:11px;color:#8a968d}.learning-theme .pet-summary-item small{display:block;margin-top:3px;color:#7b887f;font-size:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.learning-theme .pet-current{display:flex;align-items:center;gap:16px;padding:18px;border:1px solid #dfe8d8;border-radius:24px;background:linear-gradient(135deg,#eef6e7,#fbfcf5);box-shadow:var(--soft-shadow)}.learning-theme .pet-current-stage{position:relative;flex:none;width:118px;height:118px;display:flex;align-items:center;justify-content:center;background:#ffffff90;border-radius:26px}.learning-theme .pet-current-image{width:104px;height:104px;object-fit:contain}.learning-theme .pet-current-lv{position:absolute;right:-4px;bottom:-4px;padding:4px 9px;border-radius:999px;background:#43846b;color:#fff;font:700 12px/1 DM Sans,sans-serif;box-shadow:0 3px 8px #43846b33}.learning-theme .pet-current-copy{min-width:0;flex:1}.learning-theme .pet-current-copy>strong{display:block;font-size:17px;font-weight:700;color:#344a42}.learning-theme .pet-current-copy>small{display:block;margin-top:4px;color:#748078;font-size:11px;line-height:1.6}.learning-theme .pet-progress{display:block;height:8px;margin-top:10px;border-radius:999px;background:#dfe8d8;overflow:hidden}.learning-theme .pet-progress i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#7aa97f,#43846b)}.learning-theme .pet-progress-text{display:block;margin-top:5px;color:#8a968d;font-size:10px}.learning-theme .pet-feed{margin-top:14px;padding:16px;border:1px solid #e6eadf;border-radius:20px;background:var(--card);box-shadow:var(--soft-shadow)}.learning-theme .pet-feed-heading{display:flex;align-items:baseline;justify-content:space-between;gap:10px}.learning-theme .pet-feed-heading strong{font-size:14px;font-weight:700;color:#344a42}.learning-theme .pet-feed-heading span{color:#8a968d;font-size:10px}.learning-theme .pet-feed-controls{display:grid;gap:10px;margin-top:12px}.learning-theme .pet-feed-quick{display:flex;gap:8px}.learning-theme .pet-feed-quick button{flex:1;padding:8px 0;border:1px solid #dfe8d8;border-radius:12px;background:#f3f7ef;color:#4e7d5d;font-size:12px;font-weight:650}.learning-theme .pet-feed-custom{display:flex;gap:8px}.learning-theme .pet-feed-custom input{flex:1;min-width:0;height:42px;padding:0 12px;border:1px solid #dfe5d8;border-radius:12px;background:#fbfcf7;color:#344a42;font-size:13px;outline:none}.learning-theme .pet-feed-custom .primary{flex:none;width:96px}.learning-theme .pet-section-heading{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin:24px 0 12px}.learning-theme .pet-section-heading h2{margin:0;font-size:16px;font-weight:700;color:#344a42}.learning-theme .pet-section-heading span{color:#8a968d;font-size:11px;font-weight:600}.learning-theme .pet-catalog{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.learning-theme .pet-catalog-card{display:flex;flex-direction:column;align-items:center;gap:5px;min-width:0;padding:10px 4px 9px;border:1px solid #e6eadf;border-radius:16px;background:var(--card);box-shadow:var(--soft-shadow);transition:border-color .16s ease,transform .16s ease}.learning-theme .pet-catalog-card.unlocked:hover{transform:translateY(-1px);border-color:#cfe0cb}.learning-theme .pet-catalog-card.selected{border-color:#7ba581;background:#f1f8ed}.learning-theme .pet-catalog-card.locked{background:#f4f5f1;box-shadow:none;cursor:default;opacity:.85}.learning-theme .pet-catalog-image{width:52px;height:52px;object-fit:contain}.learning-theme .pet-catalog-locked{display:flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:50%;background:#e8ebe4;color:#9aa69b}.learning-theme .pet-catalog-card>strong{max-width:100%;font-size:10px;font-weight:650;color:#495c50;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.learning-theme .pet-catalog-card>small{display:flex;align-items:center;gap:4px;width:100%;min-height:14px;color:#8a968d;font-size:9px;justify-content:center}.learning-theme .pet-catalog-card>small em{font-style:normal;font-weight:700;color:#4e8a61}.learning-theme .pet-catalog-progress{display:block;flex:1;max-width:34px;height:4px;border-radius:999px;background:#dfe8d8;overflow:hidden}.learning-theme .pet-catalog-progress i{display:block;height:100%;background:#6da275;border-radius:999px}.learning-theme .pet-ledger{margin-top:4px}.learning-theme .pet-ledger ul{display:grid;gap:8px;margin:0;padding:0;list-style:none}.learning-theme .pet-ledger li{display:flex;align-items:center;gap:12px;padding:12px 14px;border:1px solid #e9ece2;border-radius:16px;background:var(--card);box-shadow:var(--soft-shadow)}.learning-theme .pet-ledger-sign{flex:none;min-width:52px;padding:6px 8px;border-radius:10px;text-align:center;font:700 13px/1.2 DM Sans,sans-serif}.learning-theme .pet-ledger-sign.gain{background:#e7f2e6;color:#4e8a61}.learning-theme .pet-ledger-sign.spend{background:#f3efdc;color:#a0863a}.learning-theme .pet-ledger-copy{min-width:0}.learning-theme .pet-ledger-copy strong{display:block;color:#3d5648;font-size:12px;font-weight:650}.learning-theme .pet-ledger-copy small{display:block;margin-top:2px;color:#8a968d;font-size:10px}.learning-theme .me-actions .pet-entry-icon{background:#faece9;color:#c07a5c}@media (max-width: 420px){.learning-theme .pet-catalog{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.learning-theme .pet-summary{gap:8px}.learning-theme .pet-summary-item{padding:11px 9px;gap:7px}.learning-theme .pet-summary-item strong{font-size:15px}.learning-theme .pet-current{gap:12px;padding:14px}.learning-theme .pet-current-stage{width:96px;height:96px;border-radius:22px}.learning-theme .pet-current-image{width:84px;height:84px}.learning-theme .pet-pick-image{width:54px;height:54px}}@media (min-width: 700px){.learning-theme .account-screen{max-width:760px;margin-inline:auto}.learning-theme .account-screen>.page-title{font-size:30px;letter-spacing:-.6px}.learning-theme .account-screen .account-actions{grid-template-columns:minmax(0,1fr)}.learning-theme .account-screen .account-actions .action{min-height:100px;padding:17px 18px}.learning-theme .account-screen .family-notice{padding:20px 22px}.learning-theme .account-screen .account-delete{grid-column:1 / -1}}.learning-theme .student-mode.page-home .review-band .task-state-title{display:flex;align-items:center;min-height:42px;font-size:clamp(16px,4.2vw,23px);line-height:1.35}.task-count-skeleton,.task-copy-skeleton{display:inline-block;border-radius:6px;background:#25855221}.task-count-skeleton{width:108px;height:36px;vertical-align:middle}.task-copy-skeleton{width:150px;max-width:100%;height:10px}@media (min-width:700px){.learning-theme .shell.parent-mode.page-family{width:min(100%,960px);padding-inline:32px;margin-block:0;min-height:100dvh;border-radius:0}.learning-theme .parent-mode.page-family .bottom-nav{width:min(100%,960px)}.learning-theme .family-screen{max-width:880px;margin-inline:auto;padding-top:10px}.learning-theme .parent-overview{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:16px 28px;align-items:start;margin:22px 0 28px;padding:18px 0}.learning-theme .parent-overview>.section-heading{grid-column:1/-1;margin:0 0 2px}.learning-theme .parent-overview .overview-grid{grid-column:1;grid-row:2;gap:12px}.learning-theme .parent-overview .overview-grid article{padding:15px 14px;border-radius:14px}.learning-theme .parent-overview .overview-subjects{grid-column:1;grid-row:3;margin-top:6px}.learning-theme .parent-overview .overview-activity{grid-column:2;grid-row:2/span 3;margin-top:0;padding-left:28px;border-left:1px solid var(--line)}.learning-theme .parent-management .family-actions{flex-wrap:nowrap;padding-left:0;align-items:center}.learning-theme .parent-management .family-actions button{white-space:nowrap;padding:5px 9px}.learning-theme .shell.parent-mode:is(.page-mistakes,.page-notes,.page-documents,.page-document,.page-document-upload,.page-chats,.page-chat,.page-statistics,.page-practices){width:min(100%,960px);padding-inline:32px;margin-block:0;min-height:100dvh;border-radius:0}.learning-theme .parent-mode:is(.page-mistakes,.page-notes,.page-documents,.page-document,.page-document-upload,.page-chats,.page-chat,.page-statistics,.page-practices) .bottom-nav{width:min(100%,960px)}.learning-theme .parent-mode .mistake-workspace{display:grid;grid-template-columns:190px minmax(0,1fr);gap:22px;align-items:start}.learning-theme .parent-mode .mistake-subject-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.learning-theme .parent-mode .mistake-subject-tile{min-height:150px}.learning-theme .parent-mode .document-library{max-width:880px;padding-top:24px}.learning-theme .parent-mode .document-library .document-subject-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.learning-theme .parent-mode .document-library .document-list{grid-template-columns:repeat(2,minmax(0,1fr))}.learning-theme .parent-mode .statistics-screen{max-width:920px;margin-inline:auto;padding-top:24px}.learning-theme .parent-mode :is(.chat-list-screen,.chat-screen){max-width:920px;margin-inline:auto;padding-top:24px}}@media (min-width:700px) and (max-width:899px){.learning-theme .shell.parent-mode.page-family,.learning-theme .shell.parent-mode:is(.page-mistakes,.page-notes,.page-documents,.page-document,.page-document-upload,.page-chats,.page-chat,.page-statistics,.page-practices){padding-inline:22px}.learning-theme .parent-overview{grid-template-columns:minmax(0,1fr)}.learning-theme .parent-overview .overview-activity{grid-column:1;grid-row:auto;padding-left:0;border-left:0;margin-top:8px}.learning-theme .parent-management .family-actions{flex-wrap:wrap}.learning-theme .parent-mode .mistake-workspace{grid-template-columns:160px minmax(0,1fr);gap:14px}}.learning-theme .parent-management .family-student{padding:4px 14px 6px}.learning-theme .parent-management .family-student-top{display:flex;align-items:center;justify-content:space-between;gap:10px}.learning-theme .parent-management .family-student-top .family-enter{flex:1;min-width:0;padding:14px 2px 6px}.learning-theme .parent-management .family-student-top .family-enter .record-copy{min-width:0}.learning-theme .parent-management .family-student-top .family-enter .record-copy strong,.learning-theme .parent-management .family-student-top .family-enter .record-copy small{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.learning-theme .parent-management .family-enter-space{display:inline-flex;align-items:center;justify-content:center;flex:none;min-height:30px;padding:4px 14px;border:1px solid #cfe0cf;border-radius:999px;background:#e4f0e2;color:#356b52;font:inherit;font-size:12px;font-weight:750;white-space:nowrap;box-shadow:0 2px 8px #647b5e14;transition:background .15s ease,border-color .15s ease,transform .15s ease}.learning-theme .parent-management .family-enter-space:hover{background:#d6e8d3;border-color:#b7cfb8;transform:translateY(-1px)}.learning-theme .parent-management .family-enter-space:active{transform:translateY(0)}.learning-theme .parent-management .family-enter-space:disabled{background:#f0f0ea;border-color:#e4e4da;color:#b0b4a8;box-shadow:none;transform:none}.learning-theme .top-actions .family-switch{display:inline-flex;align-items:center;gap:5px;min-height:32px;padding:4px 13px;border:1px solid #cfe0cf;border-radius:999px;background:#e9f3e6;color:#356b52;font:inherit;font-size:12px;font-weight:700;white-space:nowrap;box-shadow:0 2px 8px #647b5e14;transition:background .15s ease,border-color .15s ease,transform .15s ease}.learning-theme .top-actions .family-switch:hover{background:#dcecd8;border-color:#b7cfb8}.learning-theme .top-actions .family-switch:active{transform:translateY(1px)}@media (max-width:359px){.learning-theme .top-actions .family-switch{padding:4px 10px;font-size:11px}}@media (min-width:700px){.learning-theme .shell:is(.student-mode,.parent-mode).page-statistics{--study-nav-width:960px;width:min(100%,960px);max-width:960px;margin-block:0;min-height:100dvh;padding-bottom:calc(100px + env(safe-area-inset-bottom));border-radius:0}}.learning-theme .pet-screen{padding-top:0;padding-bottom:40px}.learning-theme .pet-hero{position:relative;overflow:hidden;margin:0 -22px 16px;padding:24px 22px 26px;border-radius:0 0 34px 34px;background:linear-gradient(120deg,#ffd9a0,#ffb7c8 55%,#cbb6f8);box-shadow:0 10px 30px #e8a98a2a}.learning-theme .pet-hero .back-button{position:relative;z-index:2;min-height:36px;padding:6px 12px;border:0;border-radius:999px;background:#ffffff80;color:#8a5a3a;font-size:12px;font-weight:650;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.learning-theme .pet-hero .eyebrow{position:relative;z-index:2;margin:14px 0 3px;color:#9a6238;letter-spacing:2px}.learning-theme .pet-hero .page-title{position:relative;z-index:2;margin:0;font-size:26px;color:#5c3a2e}.learning-theme .pet-hero .page-subtitle{position:relative;z-index:2;margin:6px 0 0;color:#7c5a48;font-size:11px;font-weight:600;line-height:1.7}.learning-theme .pet-hero-spark{position:absolute;z-index:1;color:#fff8;font-size:18px;animation:petFloat 3.4s ease-in-out infinite}.learning-theme .spark-1{top:22px;right:58px;animation-delay:0s}.learning-theme .spark-2{top:52px;right:118px;font-size:12px;animation-delay:.8s}.learning-theme .spark-3{top:12px;right:150px;font-size:10px;animation-delay:1.6s}@keyframes petFloat{0%,to{transform:translateY(0) scale(1)}50%{transform:translateY(-7px) scale(1.15)}}.learning-theme .pet-celebrate{display:flex;align-items:center;gap:12px;margin:0 0 14px;padding:13px 16px;border-radius:18px;background:linear-gradient(120deg,#fff3d6,#ffe0ea);border:1px solid #ffd8a8;box-shadow:0 8px 22px #e8a98a26;animation:petPop .34s cubic-bezier(.34,1.56,.64,1)}.learning-theme .pet-celebrate-icon{display:flex;align-items:center;justify-content:center;width:38px;height:38px;flex:none;border-radius:50%;background:#ffb7c8;color:#fff}.learning-theme .pet-celebrate strong{display:block;color:#7a4a2e;font-size:14px}.learning-theme .pet-celebrate small{display:block;margin-top:3px;color:#a0705a;font-size:11px}@keyframes petPop{0%{transform:scale(.85);opacity:0}to{transform:scale(1);opacity:1}}.learning-theme .pet-hud{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-bottom:14px}.learning-theme .pet-hud-item{display:flex;align-items:center;gap:9px;padding:12px 11px;border-radius:18px;box-shadow:var(--soft-shadow);min-width:0}.learning-theme .pet-hud-item .pet-hud-icon{display:flex;align-items:center;justify-content:center;width:32px;height:32px;flex:none;border-radius:10px}.learning-theme .pet-hud-item strong{display:block;font:800 17px/1.1 DM Sans,sans-serif;white-space:nowrap}.learning-theme .pet-hud-item strong em{font-style:normal;font-size:10px}.learning-theme .pet-hud-item small{display:block;margin-top:3px;font-size:9px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.learning-theme .pet-hud-item.hud-exp{background:linear-gradient(135deg,#fff6e0,#ffe9c4);border:1px solid #ffdda6}.learning-theme .pet-hud-item.hud-exp .pet-hud-icon{background:#ffce7d;color:#8a5a1e}.learning-theme .pet-hud-item.hud-exp strong{color:#9a6a1e}.learning-theme .pet-hud-item.hud-exp small{color:#b08a4e}.learning-theme .pet-hud-item.hud-catalog{background:linear-gradient(135deg,#ffeaf0,#ffd9e4);border:1px solid #ffc2d4}.learning-theme .pet-hud-item.hud-catalog .pet-hud-icon{background:#ff9fb8;color:#fff}.learning-theme .pet-hud-item.hud-catalog strong{color:#b0486a}.learning-theme .pet-hud-item.hud-catalog small{color:#c06a88}.learning-theme .pet-hud-item.hud-level{background:linear-gradient(135deg,#efecff,#ddd6ff);border:1px solid #cfc4f7}.learning-theme .pet-hud-item.hud-level .pet-hud-icon{background:#a89ae8;color:#fff}.learning-theme .pet-hud-item.hud-level strong{color:#6a58b0}.learning-theme .pet-hud-item.hud-level small{color:#8a7ac0}.learning-theme .pet-stage{position:relative;display:flex;flex-direction:column;align-items:center;gap:0;padding:0;border-radius:28px;background:#fffefa;border:1px solid #ffe8cf;box-shadow:0 12px 30px #e8a98a1f;overflow:hidden}.learning-theme .pet-stage-glow{position:absolute;z-index:2;top:0;left:0;width:100%;height:130px;border-radius:0;background:linear-gradient(180deg,#ffffff59,transparent);pointer-events:none}.learning-theme .pet-stage-art{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;width:100%;max-width:560px;aspect-ratio:1 / 1;overflow:hidden}.learning-theme .pet-stage-art .pet-current-image{width:100%;height:100%;object-fit:cover}.learning-theme .pet-stage-info{position:relative;z-index:3;width:100%;min-width:0;margin-top:-42px;padding:16px 20px 22px;background:#fffffec2;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}.learning-theme .pet-current-name{display:flex;align-items:center;gap:8px}.learning-theme .pet-current-name>strong{font-size:20px;font-weight:800;color:#5c3a2e}.learning-theme .pet-type-badge{display:inline-flex;align-items:center;padding:2px 9px;border-radius:999px;font-size:10px;font-weight:700}.learning-theme .pet-type-badge.mythic{background:linear-gradient(135deg,#e3dcff,#cfc2f8);color:#6a58b0;border:1px solid #cfc4f7}.learning-theme .pet-type-badge.normal{background:#f2eee2;color:#9a8a6a;border:1px solid #e8e0c8}.learning-theme .pet-max-badge{padding:2px 9px;border-radius:999px;background:linear-gradient(135deg,#ffce7d,#ff9fb8);color:#fff;font-size:10px;font-weight:800}.learning-theme .pet-stage-meta{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:12px}.learning-theme .pet-stage-meta span{display:flex;align-items:baseline;justify-content:space-between;gap:6px;padding:9px 12px;border-radius:14px;background:#ffffffa8;border:1px solid #f3e4d2}.learning-theme .pet-stage-meta em{font-style:normal;color:#b08a6a;font-size:10px}.learning-theme .pet-stage-meta strong{color:#6a4a38;font-size:13px;font-weight:800;white-space:nowrap}.learning-theme .pet-stage-info>small{display:block;margin-top:12px;color:#9a6a4e;font-size:11px;line-height:1.6}.learning-theme .pet-stage .pet-progress{display:block;height:11px;margin-top:8px;border-radius:999px;background:#ffe3c4;box-shadow:inset 0 1px 2px #c08a5a26;overflow:hidden}.learning-theme .pet-stage .pet-progress i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#ffce7d,#ff7f9f);box-shadow:0 0 8px #ff9fb866}.learning-theme .pet-stage .pet-progress-text{display:block;margin-top:6px;color:#b08a6a;font-size:10px;font-weight:600}.learning-theme .pet-feed{margin-top:14px;padding:16px;border-radius:22px;border:1px solid #ffe0b8;background:linear-gradient(135deg,#fff9f0,#fff4ea);box-shadow:var(--soft-shadow)}.learning-theme .pet-feed-heading strong{font-size:15px;color:#7a4a2e}.learning-theme .pet-feed-heading span{color:#b08a6a;font-size:10px}.learning-theme .pet-feed-quick button{border-color:#ffd8a8;background:#fff3df;color:#b06a2e;font-weight:700}.learning-theme .pet-feed-quick button:disabled{background:#f6efe4;color:#c0a890;border-color:#eee4d4}.learning-theme .pet-feed-custom input{border-color:#ffe0b0;background:#fffdf8}.learning-theme .student-mode.page-home .pet-home-entry .pet-home-image{flex:none;width:44px;height:44px;border-radius:50%;object-fit:cover;box-shadow:0 0 0 2.5px #fff,0 4px 10px #b07a5a30}.learning-theme .student-mode.page-home .pet-home-entry .pet-home-empty{display:grid;place-items:center;background:linear-gradient(135deg,#ffe9c7,#ffd7e4);color:#c07a4e}.learning-theme .student-mode.page-home .pet-home-entry .pet-home-progress{display:block;height:6px;margin-top:5px;border-radius:999px;background:#ffe9d2;overflow:hidden}.learning-theme .student-mode.page-home .pet-home-entry .pet-home-progress i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#ffce7d,#ff7f9f)}@media (max-width: 359px){.learning-theme .student-mode.page-home .pet-home-entry .pet-home-image{width:36px;height:36px}}.learning-theme .pet-pick-name{display:flex;align-items:center;gap:8px;min-height:44px;margin-top:14px;padding:0 12px;border:1px solid #ffe0b8;border-radius:13px;background:#fffdf8}.learning-theme .pet-pick-name-icon{display:grid;place-items:center;color:#c07a4e;flex:none}.learning-theme .pet-pick-name input{flex:1;min-width:0;border:0;outline:0;background:none;color:#6a4a38;font-size:13px}.learning-theme .pet-pick-name input::placeholder{color:#c0a890}.learning-theme .pet-current-name .pet-rename-button{display:grid;place-items:center;width:26px;height:26px;padding:0;border:0;border-radius:50%;background:#ffe9dc;color:#c07a4e;flex:none;transition:transform .15s ease,background .15s ease}.learning-theme .pet-current-name .pet-rename-button:hover{background:#ffd9c2;transform:scale(1.05)}.learning-theme .pet-rename-field{display:flex;align-items:center;gap:9px;min-height:48px;margin-top:18px;padding:0 13px;border:1px solid #ffd8b8;border-radius:14px;background:#fffdf8}.learning-theme .pet-rename-field:focus-within{border-color:#ff9fb8;box-shadow:0 0 0 3px #ff9fb826}.learning-theme .pet-rename-field-icon{display:grid;place-items:center;color:#c07a4e;flex:none}.learning-theme .pet-rename-field input{flex:1;min-width:0;border:0;outline:0;background:none;color:#6a4a38;font-size:14px}.learning-theme .pet-rename-hint{margin:8px 2px 0;color:#b08a6a;font-size:10px}.learning-theme .pet-rename-sheet .pet-preview-actions{margin-top:18px}.learning-theme .pet-section-heading h2{color:#5c3a2e}.learning-theme .pet-section-heading span{color:#b08a6a}.learning-theme .pet-catalog-card{position:relative;padding:11px 4px 10px;border-radius:18px;border:1px solid #ffe8c8;background:linear-gradient(160deg,#fffdf8,#fff6ea);box-shadow:0 6px 16px #e8a98a14}.learning-theme .pet-catalog-card.selected{border-color:#ff9fb8;background:linear-gradient(160deg,#fff0f4,#ffe4ee);box-shadow:0 6px 18px #ff9fb833}.learning-theme .pet-catalog-card .pet-catalog-image{width:62px;height:62px;object-fit:cover;border-radius:50%;box-shadow:0 0 0 3px #fff,0 4px 10px #b07a5a2e}.learning-theme .pet-catalog-card .pet-catalog-image.silhouette{filter:grayscale(.4) blur(1.2px) opacity(.55);transition:filter .25s ease}.learning-theme .pet-catalog-card.locked{background:#f7f5ef;border-color:#ece7dc;box-shadow:none}.learning-theme .pet-catalog-badge{position:absolute;top:7px;left:7px;min-width:24px;padding:2px 5px;border-radius:999px;background:linear-gradient(135deg,#ffce7d,#ff7f9f);color:#fff;font:800 9px/1.4 DM Sans,sans-serif;text-align:center}.learning-theme .pet-catalog-locked{position:absolute;top:6px;right:6px;display:flex;align-items:center;justify-content:center;width:19px;height:19px;border-radius:50%;background:#e8e2d2;color:#a89a7e;box-shadow:0 2px 6px #6a4a3814}.learning-theme .pet-catalog-card>strong{font-size:10px;color:#6a4a38}.learning-theme .pet-catalog-locklabel{display:block;margin-top:2px;color:#b0a890;font-size:9px;font-weight:600}.learning-theme .pet-catalog-card.unlocked:hover{transform:translateY(-2px);border-color:#ffc0d0}.learning-theme .pet-catalog-card{transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.learning-theme .pet-ledger li{border-color:#f0e6d4;background:#fffdf8}.learning-theme .pet-ledger-sign.gain{background:#fff3d6;color:#c07a2e}.learning-theme .pet-ledger-sign.spend{background:#ffecf0;color:#c06080}.learning-theme .pet-pick-card{border-color:#ffe8c8;background:linear-gradient(160deg,#fffdf8,#fff6ea);box-shadow:0 6px 16px #e8a98a14}.learning-theme .pet-pick-card.selected{border-color:#ff9fb8;background:#fff0f4}.learning-theme .pet-pick-stage{display:flex;align-items:center;justify-content:center;width:68px;height:68px;border-radius:50%;overflow:hidden;box-shadow:0 0 0 3px #fff,0 4px 10px #b07a5a2e}.learning-theme .pet-pick-image{width:100%;height:100%;object-fit:cover}.learning-theme .pet-pick-card span{color:#b08a6a;font-weight:650}.learning-theme .pet-pick-card.selected span{color:#d06080}@media (max-width: 420px){.learning-theme .pet-hero{margin-inline:-22px;padding:20px 20px 22px}.learning-theme .pet-hud{gap:8px}.learning-theme .pet-hud-item{padding:10px 8px;gap:6px}.learning-theme .pet-hud-item .pet-hud-icon{width:28px;height:28px}.learning-theme .pet-hud-item strong{font-size:14px}.learning-theme .pet-stage{gap:0;padding:0}.learning-theme .pet-stage-art .pet-current-image{width:100%;height:100%}.learning-theme .pet-stage-info{margin-top:-36px;padding:14px 16px 18px}.learning-theme .pet-stage-meta span{flex-direction:column;align-items:flex-start;gap:2px;padding:8px 10px}.learning-theme .pet-stage-meta em{font-size:9px}.learning-theme .pet-stage-meta strong{font-size:12px}.learning-theme .pet-pick-stage{width:56px;height:56px}.learning-theme .pet-pick-image{width:100%;height:100%}}.learning-theme .pet-preview-sheet{padding-bottom:max(18px,env(safe-area-inset-bottom))}.learning-theme .pet-preview-stage{position:relative;display:flex;align-items:center;justify-content:center;min-height:226px;margin-top:4px;padding:18px;border-radius:26px;background:radial-gradient(circle at 45% 40%,#fff,#ffe9d2);box-shadow:inset 0 0 0 1px #fff8}.learning-theme .pet-preview-image{width:200px;height:200px;object-fit:contain;filter:drop-shadow(0 10px 18px #b07a5a38)}.learning-theme .pet-preview-lv{position:absolute;right:14px;bottom:14px;padding:5px 12px;border-radius:999px;background:linear-gradient(135deg,#ff9fb8,#c07ae8);color:#fff;font:800 12px/1.3 DM Sans,sans-serif;box-shadow:0 4px 10px #c07ae84d}.learning-theme .pet-preview-levels{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:14px}.learning-theme .pet-preview-levels button{display:flex;flex-direction:column;align-items:center;gap:4px;padding:9px 4px 7px;border:1px solid #e9ece2;border-radius:15px;background:var(--card);transition:border-color .16s ease,transform .16s ease}.learning-theme .pet-preview-levels button.active{border-color:#ff9fb8;background:#fff0f4;transform:translateY(-1px)}.learning-theme .pet-preview-thumb{width:46px;height:46px;object-fit:contain;filter:drop-shadow(0 2px 4px #b07a5a1f)}.learning-theme .pet-preview-levels small{font-size:9px;color:#8a968d;white-space:nowrap}.learning-theme .pet-preview-levels button.active small{color:#c06080;font-weight:700}.learning-theme .pet-preview-actions .primary{flex:1}@media (max-width: 420px){.learning-theme .pet-preview-stage{min-height:180px}.learning-theme .pet-preview-image{width:160px;height:160px}.learning-theme .pet-preview-thumb{width:38px;height:38px}.learning-theme .pet-preview-levels small{font-size:8px}}.learning-theme .pet-preview-actions{display:flex;gap:10px;margin-top:16px}.learning-theme .pet-preview-actions .secondary{flex:1;display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:46px;padding:0 16px;border:1px solid #ffd8b8;border-radius:14px;background:#fffaf4;color:#b06a3e;font-size:13px;font-weight:700;box-shadow:0 2px 6px #b07a5a14;transition:transform .16s ease,border-color .16s ease,background .16s ease}.learning-theme .pet-preview-actions .secondary:hover{background:#fff3e2;border-color:#ffc08e;transform:translateY(-1px)}.learning-theme .pet-preview-actions .secondary:active{transform:translateY(0)}.learning-theme .pet-preview-actions .primary{flex:1;min-height:46px;border-radius:14px;box-shadow:0 4px 10px #ff7f9f2e}.learning-theme .pet-catalog-group+.pet-catalog-group{margin-top:18px}.learning-theme .pet-catalog-group-title{display:flex;align-items:center;gap:8px;margin:0 0 10px}.learning-theme .pet-catalog-group-title span{font-size:13px;font-weight:800;color:#5c3a2e}.learning-theme .pet-catalog-group-title em{padding:1px 8px;border-radius:999px;font-style:normal;font-size:10px;font-weight:700;color:#b06a5a;background:#ffe9dc}.learning-theme .pet-catalog-group:nth-child(2) .pet-catalog-group-title span:before{content:"";display:inline-block;width:8px;height:8px;margin-right:6px;border-radius:50%;background:linear-gradient(135deg,#ffce7d,#ff9fb8)}.learning-theme .pet-catalog-group:first-child .pet-catalog-group-title span:before{content:"";display:inline-block;width:8px;height:8px;margin-right:6px;border-radius:50%;background:#d8cfb8}@media (min-width: 700px){.learning-theme .shell.student-mode.page-pet>.bottom-nav{position:fixed;left:50%;width:min(100%,960px);max-width:960px;transform:translate(-50%);border-radius:0}.learning-theme .pet-screen{max-width:980px;margin-inline:auto;padding-top:10px}.learning-theme .pet-hero{margin:0 0 20px;border-radius:30px;padding:30px 34px}.learning-theme .pet-hero .page-title{font-size:30px}.learning-theme .pet-hud{gap:14px;margin-bottom:18px}.learning-theme .pet-hud-item{padding:15px 14px;gap:11px;border-radius:20px}.learning-theme .pet-hud-item .pet-hud-icon{width:38px;height:38px;border-radius:12px}.learning-theme .pet-hud-item strong{font-size:21px}.learning-theme .pet-hud-item small{font-size:10px}.learning-theme .pet-stage{padding:0;border-radius:32px}.learning-theme .pet-stage-art{max-width:560px;aspect-ratio:1 / 1;margin-inline:auto}.learning-theme .pet-stage-art .pet-current-image{width:100%;height:100%}.learning-theme .pet-stage-info{max-width:560px;margin-inline:auto}.learning-theme .pet-current-name>strong{font-size:24px}.learning-theme .pet-stage-meta span{padding:11px 14px}.learning-theme .pet-stage-meta em{font-size:11px}.learning-theme .pet-stage-meta strong{font-size:15px}.learning-theme .pet-feed{padding:19px 20px;border-radius:24px}.learning-theme .pet-feed-heading strong{font-size:16px}.learning-theme .pet-feed-controls{grid-template-columns:1fr 1.2fr;align-items:center}.learning-theme .pet-pick-grid{grid-template-columns:repeat(6,minmax(0,1fr));gap:12px}.learning-theme .pet-pick-card{padding:14px 8px 12px;border-radius:20px}.learning-theme .pet-pick-stage{width:78px;height:78px}.learning-theme .pet-pick-image{width:100%;height:100%}.learning-theme .pet-catalog{grid-template-columns:repeat(8,minmax(0,1fr));gap:12px}.learning-theme .pet-catalog-card{padding:12px 4px 11px;border-radius:20px}.learning-theme .pet-catalog-image{width:62px;height:62px}.learning-theme .pet-ledger ul{grid-template-columns:repeat(2,minmax(0,1fr))}.learning-theme .pet-preview-stage{min-height:300px;padding:26px}.learning-theme .pet-preview-image{width:250px;height:250px}.learning-theme .pet-preview-levels{grid-template-columns:repeat(8,minmax(0,1fr));gap:10px}.learning-theme .pet-preview-thumb{width:54px;height:54px}}select{color-scheme:light}select:disabled{cursor:not-allowed;opacity:.55}@supports (appearance: base-select){select:not([multiple]):not([size]),select:not([multiple]):not([size])::picker(select){-webkit-appearance:base-select;-moz-appearance:base-select;appearance:base-select}select:not([multiple]):not([size]){display:inline-flex;align-items:center;justify-content:space-between;column-gap:8px}select:not([multiple]):not([size])::picker(select){box-sizing:border-box;min-width:anchor-size(width);max-width:calc(100vw - 24px);max-height:min(320px,55dvh);margin-block:6px;padding:5px;border:1px solid #dce6dc;border-radius:14px;background:#fffefa;color:#354f41;box-shadow:0 12px 36px #203c2826;font:400 12px/1.5 DM Sans,PingFang SC,sans-serif;overflow:auto;overscroll-behavior:contain}select::picker-icon{color:#738677;margin-inline-start:auto}select:open::picker-icon{rotate:180deg}select:open{outline:2px solid #83ab93;outline-offset:2px}select:not([multiple]):not([size]) option{display:flex;align-items:center;gap:10px;min-height:36px;padding:7px 10px;border-radius:9px;background:transparent;color:#354f41;font:inherit;white-space:normal;overflow-wrap:anywhere;cursor:pointer}select:not([multiple]):not([size]) option:checked{background:#eaf3e7;color:#256547;font-weight:600}select:not([multiple]):not([size]) option:hover,select:not([multiple]):not([size]) option:focus-visible{background:#f0f5ec;outline:none}select:not([multiple]):not([size]) option:checked:hover{background:#e1efde}select:not([multiple]):not([size]) option:disabled{color:#9ba69c;cursor:not-allowed}select:not([multiple]):not([size]) option::checkmark{color:#337b50}@media (pointer: coarse){select:not([multiple]):not([size])::picker(select){font-size:13px}select:not([multiple]):not([size]) option{min-height:44px}}}
