:root{--tb-bg: #f4f8f9;--tb-surface: #ffffff;--tb-surface-2: #eef4f6;--tb-border: #d3e2e6;--tb-text: #10262b;--tb-muted: #5c757c;--tb-accent: #0e8f8f;--tb-accent-soft: #d8f0ef;--tb-radius: 14px;--tb-shadow: 0 10px 30px rgba(16, 38, 43, .08);color-scheme:light}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--tb-bg);color:var(--tb-text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}a{color:var(--tb-accent)}.shell{display:grid;grid-template-columns:260px minmax(0,1fr);min-height:100vh}.sidebar{position:sticky;top:0;align-self:start;height:100vh;overflow-y:auto;padding:24px 18px;background:var(--tb-surface);border-right:1px solid var(--tb-border)}.brand{font-weight:700;font-size:1.05rem;margin-bottom:4px}.brand-sub{color:var(--tb-muted);font-size:.82rem;margin-bottom:18px}.nav{display:flex;flex-direction:column;gap:4px}.nav button{appearance:none;border:1px solid transparent;background:transparent;color:var(--tb-text);text-align:left;padding:10px 12px;min-height:44px;border-radius:10px;font:inherit;cursor:pointer}.nav button:hover{background:var(--tb-surface-2)}.nav button[aria-current=page]{background:var(--tb-accent-soft);border-color:var(--tb-accent);color:var(--tb-text);font-weight:600}.content{padding:32px clamp(18px,4vw,56px) 72px;max-width:900px}h1{font-size:clamp(1.6rem,3vw,2.1rem);margin:0 0 8px}h2{font-size:1.15rem;margin:28px 0 8px}p,li{color:var(--tb-text)}.lead{color:var(--tb-muted);margin-top:0}pre{background:var(--tb-surface);border:1px solid var(--tb-border);border-radius:var(--tb-radius);box-shadow:var(--tb-shadow);padding:16px;overflow-x:auto;font-size:.86rem}code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}table{width:100%;border-collapse:collapse;margin:12px 0;font-size:.9rem}th,td{border:1px solid var(--tb-border);padding:8px 10px;text-align:left;vertical-align:top}th{background:var(--tb-surface-2)}.note{background:var(--tb-accent-soft);border:1px solid var(--tb-accent);border-radius:var(--tb-radius);padding:12px 14px;margin:16px 0}.footer{margin-top:40px;padding-top:16px;border-top:1px solid var(--tb-border);color:var(--tb-muted);font-size:.85rem}.search{width:100%;min-height:44px;padding:10px 12px;margin-bottom:14px;border:1px solid var(--tb-border);border-radius:10px;background:var(--tb-surface-2);font:inherit;color:var(--tb-text)}@media(max-width:860px){.shell{grid-template-columns:1fr}.sidebar{position:static;height:auto;border-right:none;border-bottom:1px solid var(--tb-border)}}