:root{--bg: #ffffff;--fg: #1e293b;--muted: #64748b;--line: #e2e8f0;--accent: #2563eb;--nav-bg: #f8fafc;--code-bg: #f1f5f9}*{box-sizing:border-box}body{margin:0;font:15px/1.6 system-ui,-apple-system,sans-serif;color:var(--fg);background:var(--bg)}.doc-topbar{display:flex;align-items:center;gap:12px;padding:10px 20px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--bg);z-index:10}.doc-topbar h1{font-size:16px;margin:0}.lang-switch{display:flex;gap:2px;border:1px solid var(--line);border-radius:6px;overflow:hidden}.lang-switch button{border:none;background:transparent;color:var(--muted);font:inherit;font-size:12px;font-weight:600;padding:4px 10px;cursor:pointer}.lang-switch button.active{background:var(--accent);color:#fff}.swatch{display:inline-block;width:28px;height:16px;border-radius:4px;vertical-align:middle}.doc-topbar .back{margin-left:auto;font-size:14px;color:var(--accent);text-decoration:none}.doc-topbar .back:hover{text-decoration:underline}.doc-shell{display:grid;grid-template-columns:260px 1fr;align-items:start}.doc-nav{position:sticky;top:53px;align-self:start;max-height:calc(100vh - 53px);overflow-y:auto;padding:16px 14px 40px;background:var(--nav-bg);border-right:1px solid var(--line)}.doc-nav h2{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:18px 8px 6px}.doc-nav h2:first-child{margin-top:0}.doc-nav ul{list-style:none;margin:0;padding:0}.doc-nav a{display:block;padding:5px 8px;border-radius:6px;color:var(--fg);text-decoration:none;font-size:14px}.doc-nav a:hover{background:#eef2f7}.doc-nav a.active{background:var(--accent);color:#fff}.doc-content{padding:24px 32px 80px;max-width:760px}.doc-content h1{font-size:26px;margin:0 0 16px}.doc-content h2{font-size:19px;margin:28px 0 10px;border-bottom:1px solid var(--line);padding-bottom:4px}.doc-content h3{font-size:16px;margin:20px 0 8px}.doc-content code{background:var(--code-bg);padding:1px 5px;border-radius:4px;font-size:.9em}.doc-content pre{background:var(--code-bg);padding:12px 14px;border-radius:6px;overflow-x:auto}.doc-content pre code{background:none;padding:0}.doc-content table{border-collapse:collapse;width:100%;margin:12px 0;font-size:14px}.doc-content th,.doc-content td{border:1px solid var(--line);padding:6px 10px;text-align:left}.doc-content th{background:var(--nav-bg)}.doc-content a{color:var(--accent)}.doc-content blockquote{margin:12px 0;padding:4px 14px;border-left:3px solid var(--line);color:var(--muted)}.feedback-form{display:flex;flex-direction:column;gap:14px;max-width:560px;margin:18px 0;padding:18px;border:1px solid var(--line);border-radius:8px;background:var(--nav-bg)}.feedback-form label{display:flex;flex-direction:column;gap:5px;font-weight:600;font-size:14px}.feedback-form input,.feedback-form select,.feedback-form textarea{font:inherit;font-weight:400;color:var(--fg);background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:7px 10px}.feedback-form textarea{resize:vertical}.feedback-form .feedback-check{flex-direction:row;align-items:center;gap:8px;font-weight:400}.feedback-form button{align-self:flex-start;font:inherit;font-weight:600;color:#fff;background:var(--accent);border:none;border-radius:6px;padding:9px 16px;cursor:pointer}.feedback-form button:hover{filter:brightness(1.1)}.feedback-note{margin:0;font-size:12.5px;color:var(--muted)}@media(max-width:720px){.doc-shell{grid-template-columns:1fr}.doc-nav{position:static;max-height:none;border-right:none;border-bottom:1px solid var(--line)}}@media(prefers-color-scheme:dark){:root{--bg: #0f172a;--fg: #e2e8f0;--muted: #94a3b8;--line: #1e293b;--nav-bg: #111c33;--code-bg: #1e293b}.doc-nav a:hover{background:#1e293b}}