@charset "UTF-8";
:root{--ink:#20283e;--muted:#77808e;--accent:#5c50c8;--accent-soft:#f0edfc;--line:#e6e6e9;--paper:#fff;--bg:#f6f6f4;--green:#3a7665;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);font-size:14px;line-height:1.6}*{box-sizing:border-box}body{margin:0}button,input,textarea{font:inherit}button,a,input,textarea,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-decoration:none}button:disabled{cursor:not-allowed;opacity:.45}[hidden]{display:none!important}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #a59de8;outline-offset:3px}button{border:0}h1,h2,h3,p{margin:0}.topbar{height:88px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 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p{color:var(--muted);font-size:13px}.history-link{font-size:12px;padding-bottom:4px;border-bottom:1px solid #cbcbd4}.history-link span{margin-left:14px}.work-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:24px;align-items:start}.editor{display:grid;gap:24px}.panel{background:var(--paper);border:1px solid var(--line);border-radius:15px;padding:26px}.section-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;gap:12px}h2{font-size:17px;font-weight:600;display:flex;align-items:center;gap:10px}.step{font:italic 16px Georgia,serif;color:#9395a6;margin-right:2px}.count-pill{background:var(--accent-soft);color:var(--accent);padding:3px 10px;border-radius:20px;font-size:11px;white-space:nowrap}.scope-tools{display:flex;justify-content:space-between;gap:10px;font-size:11px;color:#9196a0;margin-bottom:21px}.scope-tools>div{white-space:nowrap}.scope-tools span{color:#c9c9d2;margin:0 5px}.chapter{margin:0 0 20px}.chapter:last-child{margin-bottom:0}.chapter-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;gap:8px}.chapter-heading{display:flex;gap:8px;align-items:center;cursor:pointer;font-size:13px;font-weight:600}.chapter-heading input{accent-color:var(--accent);width:15px;height:15px;margin:0 3px 0 0}.chapter-num{font-size:11px;font-weight:400;color:var(--muted);margin-right:3px}.chapter-status{font-size:10px;color:var(--green);white-space:nowrap}.topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;touch-action:pan-y}.topic-card{min-height:56px;border:1px solid #e8e8ed;background:#fcfcfd;border-radius:7px;display:flex;align-items:center;gap:9px;padding:10px 12px;font-size:12px;cursor:pointer;position:relative;user-select:none;transition:border-color .12s,background .12s}.topic-card:hover{border-color:#b8b2e1;background:#f9f8fe}.topic-card.is-selected{background:var(--accent-soft);border-color:#aaa2e5;color:#443890}.topic-card input{accent-color:var(--accent);width:14px;height:14px;margin:0;flex-shrink:0}.topic-card span{line-height:1.55}.scope-note{margin-top:23px;display:flex;gap:9px;padding-top:16px;border-top:1px solid var(--line);color:#959aa4;font-size:10px}.scope-note>span{color:var(--green);font-size:12px}.section-heading h2 small{font-size:11px;font-weight:400;color:#9b9eaa;margin-left:3px}.requirement-panel textarea{width:100%;border:1px solid #e2e3e9;border-radius:8px;resize:vertical;min-height:145px;padding:14px;background:#fdfdfd;color:var(--ink);font-size:12px;line-height:1.9}.requirement-panel textarea::placeholder{color:#a4a7b1}.input-foot{display:flex;justify-content:space-between;color:#999fa9;font-size:10px;margin-top:6px}.examples{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:16px;font-size:11px;color:#949aa7}.examples button{background:#f5f5f8;border:1px solid #eeeeF2;padding:4px 9px;border-radius:5px;color:#74788b;font-size:10px}.examples button:hover{background:var(--accent-soft);color:var(--accent)}.side-panel{position:sticky;top:20px}.generation-panel{padding:25px 23px}.mode-group{padding:0;margin:0;border:0}.mode-group legend{font-size:11px;color:var(--muted);margin-bottom:10px}.mode-card{display:flex;gap:12px;align-items:center;border:1px solid var(--line);border-radius:8px;padding:13px 12px;cursor:pointer;margin-bottom:9px}.mode-card.selected{border-color:#aaa2e5;background:#faf9ff}.mode-card input{position:absolute;opacity:0;width:1px;height:1px}.mode-card:focus-within{outline:2px solid #aaa2e5;outline-offset:2px}.mode-card b{font-size:13px;font-weight:550;display:block}.mode-card small{font-size:10px;color:#9396a4;display:block;margin-top:2px}.mode-icon{display:grid;place-items:center;width:30px;height:33px;background:#f0eff7;color:#686182;border-radius:6px;font-size:19px}.radio-dot{width:14px;height:14px;border:1px solid #d5d5de;border-radius:50%;margin-left:auto;flex-shrink:0}.selected .radio-dot{border:4px solid var(--accent)}.summary{margin:22px 0 19px;font-size:11px}.summary>div{display:flex;justify-content:space-between;gap:10px}.summary span{color:var(--muted)}.summary b{font-size:11px;font-weight:500}.summary p{margin-top:8px;color:#9398a4;font-size:11px;line-height:1.9}.summary #summary-topics{max-height:120px;overflow:auto}.summary .divider{height:1px;background:var(--line);margin:18px 0}.default-details{font-size:11px;color:#85899a;border-top:1px solid var(--line);padding:13px 0 17px}.default-details summary{cursor:pointer}.default-details p{font-size:10px;margin-top:10px;line-height:1.9;color:#9297a3}.primary{width:100%;background:var(--accent);color:white;border-radius:7px;padding:13px 16px;display:flex;justify-content:space-between;align-items:center;font-size:13px;transition:background .15s}.primary:hover:not(:disabled){background:#4a3daf}.submit-note{color:#a0a4af;font-size:10px;text-align:center;line-height:1.9;margin-top:13px}.quiet-note{font-size:10px;color:#8b91a0;display:flex;gap:9px;padding:17px 6px}.quiet-note>span{border:1px solid #b0b4c0;flex-shrink:0;width:13px;height:13px;line-height:12px;text-align:center;border-radius:50%;margin-top:2px}.history{padding-top:48px}.history-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.history-heading .eyebrow{font-size:9px;color:#999baa;letter-spacing:2px}.history-heading h2{margin-top:5px;font-size:20px}.secondary{background:white;border:1px solid var(--line);border-radius:6px;padding:6px 12px;font-size:11px;color:#85899b}.empty-state{border:1px dashed #dcdde4;text-align:center;border-radius:12px;padding:35px;background:#f9f9f8}.empty-state>span{font-size:29px;color:#aaa7bd}.empty-state h3{font-size:13px;font-weight:500;color:#777c8b;margin:5px 0}.empty-state p{font-size:11px;color:#a0a4ad}.job{border:1px solid var(--line);background:white;border-radius:10px;padding:20px 23px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:20px;margin-bottom:12px}.job-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.job h3{font-size:14px;font-weight:550}.job time{font-size:10px;color:#a1a4af}.status{font-size:10px;padding:2px 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0}.error{color:#b15a46;font-size:12px;margin-top:10px;white-space:pre-line}.sr-only{position:absolute;width:1px;height:1px;clip:rect(0,0,0,0);overflow:hidden;white-space:nowrap}#toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%);background:#282d43;color:white;padding:12px 20px;border-radius:8px;box-shadow:0 8px 30px #20283e20;z-index:15;font-size:12px}#marquee{position:fixed;pointer-events:none;border:1px solid #8173d0;background:#7864cf20;z-index:10}.login-view{max-width:1050px;min-height:calc(100vh - 88px);display:grid;grid-template-columns:1fr 1fr;align-items:center;margin:auto;gap:80px;padding:50px 35px}.login-card h1{font-size:31px}.login-card>p{color:var(--muted);font-size:13px;line-height:1.9}.login-card form{margin:30px 0}.login-card label{display:block;font-size:12px;margin-bottom:8px}.login-card input{width:100%;border:1px solid #dcdce4;border-radius:7px;padding:12px;background:white;margin-bottom:14px}.login-card>small{font-size:10px;color:#a6a7b1}.login-art{background:#eae8f1;border-radius:18px;aspect-ratio:1;display:grid;place-items:center;transform:rotate(2deg)}.math-grid{padding:28px;text-align:center;background-image:linear-gradient(#d8d5e1 1px,transparent 1px),linear-gradient(90deg,#d8d5e1 1px,transparent 1px);background-size:25px 25px;transform:rotate(-2deg)}.math-grid>span{font:italic 35px Georgia,serif;color:#6b6383}.square-diagram{display:grid;grid-template-columns:90px 55px;grid-template-rows:90px 55px;margin:25px auto;border:1px solid #7b718e;width:max-content}.square-diagram b{font:italic 24px Georgia,serif;display:grid;place-items:center;border:1px solid #7b718e;background:#dfdae9;color:#756887}.square-diagram b:nth-child(2),.square-diagram b:nth-child(3){background:#eeebf3;font-size:20px}.math-grid>p{font-size:11px;color:#81758f;letter-spacing:1px}@keyframes 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