:root{--bg: #f4f6f8;--surface: #ffffff;--surface-2: #f8fafb;--text: #17212b;--muted: #5d6b78;--border: #dde3e8;--primary: #1f5f8b;--primary-hover: #184d72;--primary-soft: #e6f0f7;--danger: #b42318;--danger-soft: #fdecea;--ok: #1a7f4b;--ok-soft: #e5f5ec;--warn: #9a6200;--warn-soft: #fff4dc;--off: #6b7280;--off-soft: #eef0f2;--radius: 10px;--shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .06);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:15px;line-height:1.5;color:var(--text);background:var(--bg)}@media(prefers-color-scheme:dark){:root{--bg: #11161b;--surface: #182027;--surface-2: #1d262e;--text: #e6ebef;--muted: #97a4b0;--border: #2b3640;--primary: #5aa6d8;--primary-hover: #7bb9e2;--primary-soft: #1b3445;--danger: #f2827a;--danger-soft: #3a1f1d;--ok: #5fcf93;--ok-soft: #173326;--warn: #f0bb55;--warn-soft: #382c13;--off: #9aa3ad;--off-soft: #262e36;--shadow: none}}*{box-sizing:border-box}body{margin:0;background:var(--bg)}h1,h2{margin:0;line-height:1.25}h1{font-size:1.45rem;display:flex;flex-wrap:wrap;align-items:center;gap:8px;word-break:break-word}h2{font-size:1.05rem}a{color:var(--primary)}code{font-family:ui-monospace,Cascadia Mono,Consolas,monospace;font-size:.88em}.muted{color:var(--muted)}.center{min-height:100vh;display:grid;place-items:center}.shell{min-height:100vh;display:flex;flex-direction:column}.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:24px;padding:0 24px;height:56px;background:var(--surface);border-bottom:1px solid var(--border)}.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.05rem}.brand-large{font-size:1.5rem;margin-bottom:4px}.brand-mark{width:26px;height:26px;flex:none;background:url(/favicon.svg) center / contain no-repeat}.nav{display:flex;gap:4px;flex:1;overflow-x:auto}.nav a{padding:6px 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