:root{color-scheme:light;--bg:#f8fafc;--surface:#fff;--text:#1e293b;--muted:#526176;--line:#e2e8f0;--accent:#2563eb;--soft:#eff6ff;--code:#111b2e;--code-text:#e2e8f0;--radius:12px;font-family:Inter,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px}
:root[data-theme=dark]{color-scheme:dark;--bg:#0b1220;--surface:#111c2e;--text:#e3eaf5;--muted:#a7b5cb;--line:#28364c;--accent:#8cb4ff;--soft:#172a49;--code:#080f1c}
*{box-sizing:border-box}html{scroll-padding-top:92px;scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);line-height:1.8}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button,input{font:inherit}button{cursor:pointer}a,button,input{touch-action:manipulation}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}button{color:var(--text);background:var(--surface);border:1px solid var(--line);border-radius:7px;min-height:38px;padding:5px 12px}button:hover{background:var(--soft)}.skip-link{position:fixed;top:-90px;left:16px;z-index:50;background:var(--surface);padding:10px 16px}.skip-link:focus{top:8px}.site-header{position:sticky;top:0;z-index:20;background:var(--surface);border-bottom:1px solid var(--line);height:72px;display:flex;align-items:center;gap:32px;padding:0 28px}.brand{display:flex;align-items:center;gap:10px;color:var(--text);white-space:nowrap;font-size:18px}.brand span{font-size:14px;color:var(--muted);border-left:1px solid var(--line);padding-left:12px}.brand:hover{text-decoration:none}.header-links{margin-left:auto;display:flex;align-items:center;gap:22px;font-size:14px;white-space:nowrap}.header-links a{color:var(--muted)}.header-links button{font-size:12px}.search{position:relative;max-width:380px;flex:1;min-width:160px}.search label{position:absolute;width:1px;height:1px;clip-path:inset(50%)}.search input{width:100%;height:40px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--text);padding:8px 60px 8px 14px;font-size:14px}.search-key{position:absolute;right:12px;top:8px;font-size:12px;color:var(--muted);pointer-events:none}#search-results{position:absolute;top:48px;left:0;width:max(100%,450px);max-width:calc(100vw - 32px);max-height:65vh;overflow:auto;background:var(--surface);box-shadow:0 12px 40px #0002;border:1px solid var(--line);border-radius:10px;padding:8px;line-height:1.5}#search-results[hidden]{display:none}#search-results a{display:grid;gap:5px;padding:12px;border-radius:6px;color:var(--text)}#search-results a:hover,#search-results a:focus{background:var(--soft);text-decoration:none}#search-results span{font-size:12px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}#menu-toggle{display:none}.docs-layout{display:grid;grid-template-columns:260px minmax(0,1fr) 210px;max-width:1580px;margin:auto;align-items:start}.sidebar{position:sticky;top:72px;height:calc(100vh - 72px);overflow:auto;border-right:1px solid var(--line);padding:28px 20px 48px}.docs-home{display:flex;align-items:center;justify-content:space-between;color:var(--text);font-weight:650;font-size:14px;margin:0 10px 30px}.docs-home span{font-size:11px;font-weight:500;color:var(--muted);background:var(--surface);border:1px solid var(--line);padding:1px 7px;border-radius:20px}.nav-group{margin-bottom:25px}.nav-group h2{font-size:12px;margin:0 10px 8px;color:var(--muted);font-weight:600}.nav-group a{display:block;color:var(--muted);padding:7px 10px;border-radius:6px;font-size:13px;line-height:1.65;overflow-wrap:anywhere}.nav-group a:hover{background:var(--surface);text-decoration:none;color:var(--text)}.nav-group a[aria-current=page]{color:var(--accent);background:var(--soft);font-weight:600}main{padding:38px 48px 48px;min-width:0;max-width:980px;width:100%;margin:auto}.breadcrumbs{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:12px;margin-bottom:20px}.breadcrumbs a{color:var(--muted)}h1{font-size:clamp(26px,3vw,38px);line-height:1.35;letter-spacing:-.6px;margin:0 0 18px;overflow-wrap:anywhere}h2{font-size:22px;line-height:1.5;margin:0 0 16px;font-weight:650;letter-spacing:-.3px}h3{font-size:17px;line-height:1.6;margin-top:24px}p{margin:12px 0;overflow-wrap:anywhere}.lead{font-size:16px;color:var(--muted);margin-bottom:30px;line-height:1.9}.article-section{padding-top:28px;margin-top:24px;border-top:1px solid var(--line)}.article-section h2 a{color:var(--text)}.article-section h2 a:hover{color:var(--accent);text-decoration:none}.article-section p{line-height:1.95}.toc{position:sticky;top:100px;max-height:calc(100vh - 120px);overflow:auto;font-size:12px;padding:34px 16px 20px 8px;line-height:1.7}.toc strong{display:block;color:var(--text);margin-bottom:12px;font-size:12px}.toc a{display:block;border-left:1px solid var(--line);padding:6px 12px;color:var(--muted)}.toc a:hover{color:var(--accent);border-color:var(--accent);text-decoration:none}.code-block{background:var(--code);color:var(--code-text);border-radius:var(--radius);overflow:hidden;margin:20px 0;min-width:0}.code-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;background:#ffffff08;border-bottom:1px solid #ffffff15;padding:8px 16px;font-size:11px;color:#afbed4}.code-toolbar button{min-height:30px;padding:2px 12px;background:#ffffff0c;color:#e2e8f0;border-color:#ffffff26;font-size:12px}pre{margin:0;padding:18px 20px;overflow-x:auto;font-size:12px;line-height:1.85;tab-size:2}code{font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace}.notice{background:var(--soft);border:1px solid var(--line);border-left:3px solid var(--accent);padding:18px 22px;border-radius:8px;font-size:14px;margin-bottom:28px}.notice p{margin:8px 0 0;color:var(--muted)}.related{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:16px 20px;display:flex;gap:8px 18px;flex-wrap:wrap;font-size:14px}.related span{color:var(--muted)}.table-scroll{overflow-x:auto;max-width:100%}table{border-collapse:collapse;width:100%;font-size:14px}th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}thead{background:var(--surface)}tbody th{font-family:monospace;font-weight:500;overflow-wrap:anywhere}.check{border-left:3px solid var(--accent);padding:8px 16px;background:var(--soft);font-size:14px}.demo-link{margin:36px 0 24px;padding:18px 20px;background:var(--surface);border:1px solid var(--line);border-radius:8px;font-size:14px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}.demo-link span{color:var(--muted)}.page-turn{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:30px 0}.page-turn a{border:1px solid var(--line);padding:14px 18px;border-radius:8px;line-height:1.6;font-size:14px;background:var(--surface)}.page-turn a:last-child{text-align:right}.page-turn small{display:block;font-size:11px;color:var(--muted);margin-bottom:5px}.article-footer{border-top:1px solid var(--line);padding-top:22px;margin-top:30px;display:flex;flex-wrap:wrap;gap:12px 22px;font-size:12px;color:var(--muted)}.article-footer a{color:var(--muted)}.article-footer span{margin-right:auto}.quick-start{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:32px 0 48px}.quick-start a{position:relative;display:grid;align-content:start;background:var(--surface);border:1px solid var(--line);padding:22px;border-radius:var(--radius);color:var(--text);transition:border-color .2s,box-shadow .2s}.quick-start a:hover{border-color:var(--accent);box-shadow:0 5px 20px #2563eb0c;text-decoration:none}.quick-start span{font-size:11px;letter-spacing:1px;color:var(--accent);margin-bottom:10px}.quick-start strong{font-size:17px;line-height:1.5}.quick-start p{font-size:13px;color:var(--muted);line-height:1.8;margin:10px 0 24px}.quick-start b{position:absolute;right:22px;bottom:15px;color:var(--accent);font-size:20px}.section-intro{font-size:14px;color:var(--muted)}.catalog-group{margin-top:28px}.catalog-group h3{font-size:14px;color:var(--muted);padding-bottom:10px;border-bottom:1px solid var(--line)}.catalog-links{display:grid;grid-template-columns:1fr 1fr;gap:2px 22px}.catalog-links a{display:flex;justify-content:space-between;gap:16px;align-items:center;min-height:44px;font-size:14px;color:var(--text)}.catalog-links a:hover{color:var(--accent)}.catalog-links span{color:var(--muted);font-size:12px}#copy-status:empty{display:none}#copy-status{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);padding:10px 22px;background:var(--text);color:var(--bg);border-radius:8px;box-shadow:0 4px 20px #0002;font-size:14px;z-index:30}
@media(min-width:1600px){.docs-layout{grid-template-columns:270px minmax(0,1fr) 220px}main{padding:44px 64px}}
@media(max-width:1200px){.docs-layout{grid-template-columns:240px minmax(0,1fr)}.toc{display:none}main{padding:32px}.header-links{gap:16px}.site-header{gap:20px}.brand span{display:none}}
@media(max-width:800px){html{scroll-padding-top:150px}.site-header{height:auto;min-height:120px;display:grid;grid-template-columns:1fr auto;gap:12px;padding:14px 20px}.brand{font-size:17px}.brand img{width:26px;height:26px}.search{grid-column:1 / -1;grid-row:2;max-width:none;width:100%}.header-links{grid-column:2;grid-row:1;margin-right:54px;gap:14px;font-size:12px}.header-links button{font-size:0;min-height:30px;width:30px;padding:0}.header-links button:after{content:'◐';font-size:18px}#menu-toggle{display:block;position:absolute;right:20px;top:14px;min-height:30px;font-size:12px;padding:2px 9px}.docs-layout{display:block}.sidebar{display:none;position:static;height:auto;max-height:55vh;border-bottom:1px solid var(--line);padding:20px}.menu-open .sidebar{display:block}.sidebar nav{display:grid;grid-template-columns:1fr 1fr;gap:10px}.docs-home{margin-bottom:18px}.nav-group{margin-bottom:10px}main{padding:28px 22px 36px}.breadcrumbs{margin-bottom:16px}.lead{font-size:15px}.article-section{padding-top:24px;margin-top:24px}h2{font-size:20px}pre{font-size:11px;padding:16px}#search-results{width:100%;max-width:100%;max-height:55vh}.quick-start{gap:12px;margin:26px 0 36px}.quick-start a{padding:18px}.quick-start strong{font-size:16px}.catalog-links{gap:2px 18px}.table-scroll table{min-width:440px}.article-footer{gap:10px 18px}}
@media(max-width:460px){.header-links>a:first-child{display:none}.site-header{padding:14px 16px;gap:12px}#menu-toggle{right:16px}main{padding:24px 18px 36px}.quick-start,.catalog-links{grid-template-columns:1fr}.quick-start p{margin-bottom:18px}.quick-start{gap:12px}.page-turn{gap:10px}.page-turn a{padding:12px;font-size:12px}.sidebar nav{grid-template-columns:1fr}.notice{padding:16px;font-size:13px}.brand span{display:inline;font-size:12px}.header-links{gap:10px;margin-right:50px}.article-footer span{width:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}