:root{color-scheme:light dark;--bg:#f7f8fa;--paper:#fcfcfd;--ink:#192d33;--muted:#596b72;--line:#dce2e5;--accent:#176d68;--callout:#eef4f3;--warning:#fff6e7;--warning-ink:#795415}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;line-height:1.85}a{color:var(--accent);text-underline-offset:4px}a:hover{text-decoration-thickness:2px}button{font:inherit;cursor:pointer}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}.skip-link{position:absolute;top:-100px;left:20px;background:var(--paper);padding:10px;z-index:3}.skip-link:focus{top:12px}.site-header{height:80px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100vw - 1240px)/2));background:var(--paper)}.brand{display:flex;gap:20px;align-items:center;font-size:21px;font-weight:750;color:var(--ink);text-decoration:none;white-space:nowrap}.brand span{font-size:13px;font-weight:400;color:var(--muted);border-left:1px solid var(--line);padding-left:20px}.source-link{font-size:14px;white-space:nowrap}.layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:56px;max-width:1240px;margin:0 auto;padding:52px 24px}.sidebar{position:sticky;top:32px;align-self:start;max-height:calc(100dvh - 64px);overflow:auto;font-size:13px}.nav-label{font-weight:700;font-size:12px;color:var(--muted);margin:0 0 20px}#toc a{display:block;padding:6px 0;text-decoration:none;color:var(--muted);line-height:1.7}#toc a.active,#toc a:hover{color:var(--accent)}#toc a.level-2{padding-left:14px;font-size:12px}main{min-width:0;background:var(--paper);padding:36px 48px;border:1px solid var(--line);border-radius:8px}.eyebrow{margin:0 0 12px;font-size:13px;color:var(--accent)}.document-header h1{font-size:clamp(26px,3vw,38px);line-height:1.4;letter-spacing:-.7px;margin:0 0 22px}.metadata{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12px;color:var(--muted)}.metadata button{background:transparent;border:1px solid var(--line);border-radius:5px;padding:5px 12px;color:var(--ink);font-size:12px}.metadata button:hover{background:var(--callout)}.metadata button:disabled{opacity:.6;cursor:wait}#status{font-size:13px;color:var(--muted);margin:18px 0}#status:empty{display:none}#warnings{margin:24px 0;padding:12px 16px;border-radius:5px;background:var(--warning);color:var(--warning-ink);font-size:12px}#warnings summary{cursor:pointer;font-size:13px}#warnings p{margin:12px 0 0}.document-content{margin-top:32px;font-size:15px;overflow-wrap:anywhere}.document-content h1,.document-content h2,.document-content h3,.document-content h4{scroll-margin-top:24px;line-height:1.5}.document-content h1{font-size:28px;margin:48px 0 22px;border-top:1px solid var(--line);padding-top:32px}.document-content h2{font-size:21px;margin:32px 0 18px}.document-content h3{font-size:18px;margin:26px 0 14px}.document-content p{margin:12px 0;white-space:pre-wrap}.document-content .callout{background:var(--callout);border-left:3px solid var(--accent);padding:10px 20px;border-radius:0 5px 5px 0;margin:24px 0}.document-content .callout p{margin:8px 0}.doc-list{padding-left:24px;margin:5px 0}.document-content pre{overflow:auto;background:var(--callout);padding:18px;border-radius:5px;white-space:pre}.document-content code{font-family:Consolas,monospace;background:var(--callout);padding:2px 4px}.document-content blockquote{margin:18px 0;border-left:3px solid var(--line);padding:8px 20px;color:var(--muted)}.document-content figure{margin:20px 0}.document-content img{max-width:100%;height:auto;display:block;margin:auto}.document-content video{width:100%;max-height:600px;background:#182124}.document-content figcaption{font-size:12px;color:var(--muted);margin:8px 0}.columns{display:grid;grid-template-columns:repeat(var(--columns),minmax(0,1fr));gap:24px}.column{min-width:0}.doc-plugin{display:block;width:100%;border:0;border-radius:5px;height:460px;margin:16px 0;background:var(--callout)}.unsupported{padding:12px 16px;background:var(--warning);color:var(--warning-ink);font-size:12px;margin:16px 0;border-radius:5px}.unsupported p{margin:0 0 5px}.inline-warning{color:var(--warning-ink)}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%}td{border:1px solid var(--line);padding:10px;min-width:100px}.align-center{text-align:center}.align-right{text-align:right}hr{border:0;border-top:1px solid var(--line);margin:32px 0}footer{margin-top:56px;border-top:1px solid var(--line);padding-top:18px;color:var(--muted);font-size:12px}.muted{color:var(--muted)}[hidden]{display:none!important}@media(prefers-color-scheme:dark){:root{--bg:#142025;--paper:#1a292e;--ink:#e4ebed;--muted:#afbdc1;--line:#35464c;--accent:#7dc8bf;--callout:#233b3d;--warning:#3c321e;--warning-ink:#e9cf98}}@media(max-width:900px){.layout{grid-template-columns:170px minmax(0,1fr);gap:24px;padding-top:32px}main{padding:28px}}@media(max-width:640px){.site-header{height:68px;padding:0 20px}.brand{font-size:18px}.brand span{display:none}.layout{display:block;padding:20px 16px}.sidebar{position:static;max-height:180px;margin-bottom:24px}.nav-label{margin-bottom:8px}#toc{display:grid;grid-template-columns:1fr 1fr;gap:4px 16px}#toc a.level-2{display:none}main{padding:24px 20px}.columns{grid-template-columns:1fr}.document-content{font-size:14px}.document-content h1{font-size:23px}.document-content h2{font-size:19px}.document-header h1{font-size:27px}.doc-plugin{height:360px}}@media(prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}button,a{transition:color .15s,background-color .15s}}
.home{max-width:1000px;margin:64px auto;padding:48px}.home h1{font-size:clamp(28px,4vw,44px);line-height:1.4}.document-index{list-style:none;padding:0;margin:40px 0 0}.document-index li{border-top:1px solid var(--line);padding:24px 0}.document-index a{font-size:20px;font-weight:650;text-decoration:none}.document-index p{font-size:13px;color:var(--muted);margin:8px 0 0}@media(max-width:640px){.home{margin:24px 16px;padding:24px}.document-index a{font-size:18px}}

/* Source callout palette. Background and border are independent API attributes. */
.document-content .callout{display:flex;align-items:flex-start;gap:12px;background:var(--callout-background,var(--callout));border:1px solid var(--callout-border,var(--line));border-radius:8px;padding:12px 18px;color:#1f2329}.callout-icon{flex:0 0 20px;font-family:"Segoe UI Emoji","Apple Color Emoji",sans-serif;font-size:18px;line-height:1.85;padding-top:7px}.callout-body{min-width:0;flex:1}.callout-body>p:first-child{margin-top:7px}.callout-body>p:last-child{margin-bottom:7px}.callout[data-background="1"]{--callout-background:#fef1f1}.callout[data-background="2"]{--callout-background:#fff6ed}.callout[data-background="3"]{--callout-background:#fffbe6}.callout[data-background="4"]{--callout-background:#eff9e9}.callout[data-background="5"]{--callout-background:#f0f4ff}.callout[data-background="6"]{--callout-background:#f6f0ff}.callout[data-background="7"]{--callout-background:#f5f6f7}.callout[data-background="8"]{--callout-background:#fbbfbc}.callout[data-background="9"]{--callout-background:#fed4a4}.callout[data-background="10"]{--callout-background:#faed86}.callout[data-background="11"]{--callout-background:#b9e49a}.callout[data-background="12"]{--callout-background:#bacefd}.callout[data-background="13"]{--callout-background:#d3adf7}.callout[data-background="14"]{--callout-background:#d5d9df}.callout[data-border="1"]{--callout-border:#f98e8b}.callout[data-border="2"]{--callout-border:#ffca95}.callout[data-border="3"]{--callout-border:#f5da65}.callout[data-border="4"]{--callout-border:#a6d985}.callout[data-border="5"]{--callout-border:#8aabff}.callout[data-border="6"]{--callout-border:#c2a0ee}.callout[data-border="7"]{--callout-border:#c5cbd3}.callout a{color:#1456b8}.callout code{color:#1f2329;background:#e5e9ef}@media(max-width:640px){.document-content .callout{gap:9px;padding:10px 13px}}