:root{color-scheme:dark;--bg: #0d1117;--surface: #151b23;--surface-2: #0d1117;--raised: #212830;--border: #3d444d;--border-soft: #2a313a;--text: #f0f6fc;--text-muted: #9198a1;--text-faint: #6a737d;--accent: #3fb950;--accent-strong: #238636;--accent-hover: #2ea043;--accent-ink: #ffffff;--accent-soft: rgba(63, 185, 80, .12);--danger: #f85149;--danger-soft: rgba(248, 81, 73, .12);--warning: #d29922;--radius: 12px;--radius-sm: 7px;--shadow: 0 1px 2px rgba(1, 4, 9, .4);--shadow-lg: 0 8px 24px rgba(1, 4, 9, .5);--cell: 13px;--cell-gap: 3px;--gutter: 30px;--font: ui-sans-serif, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;--mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;--ease: cubic-bezier(.2, 0, 0, 1)}:root[data-theme=light]{color-scheme:light;--bg: #ffffff;--surface: #ffffff;--surface-2: #f6f8fa;--raised: #f6f8fa;--border: #d1d9e0;--border-soft: #e4e8ec;--text: #1f2328;--text-muted: #59636e;--text-faint: #818b98;--accent: #1f883d;--accent-strong: #1f883d;--accent-hover: #1a7f37;--accent-ink: #ffffff;--accent-soft: rgba(31, 136, 61, .1);--danger: #cf222e;--danger-soft: rgba(207, 34, 46, .08);--warning: #9a6700;--shadow: 0 1px 2px rgba(31, 35, 40, .08);--shadow-lg: 0 8px 24px rgba(31, 35, 40, .12)}*{box-sizing:border-box}html{background:var(--bg)}body{margin:0;min-width:320px;font-family:var(--font);font-size:15px;line-height:1.55;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer}a{color:inherit}:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.app{min-height:100vh;display:flex;flex-direction:column}.header{position:sticky;top:0;z-index:20;background:color-mix(in 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var(--ease),background-color .12s var(--ease)}.icon-button:hover:not(:disabled){color:var(--text);border-color:var(--border)}.icon-button:disabled{opacity:.4;cursor:not-allowed}.main{flex:1;width:min(1180px,100% - var(--gutter) * 2);margin:0 auto;padding:28px 0 56px;display:flex;flex-direction:column;gap:18px}.intro{margin-bottom:2px}.intro h1{margin:0;font-size:clamp(21px,2.4vw,27px);font-weight:650;letter-spacing:-.02em;line-height:1.25}.intro p{margin:6px 0 0;color:var(--text-muted);font-size:14px}.card{background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--radius);padding:20px}.card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:16px}.card-head>div:first-child{display:grid;grid-template-columns:auto 1fr;align-items:baseline;column-gap:10px;row-gap:2px}.card-head h2{margin:0;font-size:16px;font-weight:650;letter-spacing:-.01em}.card-head 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var(--ease)}.chip:hover:not(:disabled){background:var(--raised);border-color:var(--text-faint)}.chip:disabled{opacity:.45;cursor:not-allowed}.chip.active{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}.chip.primary{background:var(--accent-strong);border-color:transparent;color:var(--accent-ink);font-weight:550}.chip.primary:hover:not(:disabled){background:var(--accent-hover);border-color:transparent}.chip.danger:hover:not(:disabled){color:var(--danger);border-color:var(--danger);background:var(--danger-soft)}.chip.subtle{border-color:transparent;background:transparent;color:var(--text-muted)}.chip.subtle:hover{color:var(--text);background:var(--surface-2)}.toolbar-hint{margin:9px 0 0;color:var(--text-faint);font-size:12px}.draft-panel{margin-top:12px;padding:14px;display:flex;align-items:flex-end;gap:16px;flex-wrap:wrap;background:var(--surface-2);border:1px solid 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