:root{color-scheme:light;--bg:#fff;--panel:#f6f7f8;--text:#32363f;--muted:#727780;--line:#e5e7eb;--accent:#138698;--accent-soft:#e9f4f5;--header:rgba(255,255,255,.96);--code:#f0f2f4;--sidebar-width:284px;--header-height:72px;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-synthesis:none}
:root[data-theme=dark]{color-scheme:dark;--bg:#1b1c20;--panel:#202227;--text:#e1e3e8;--muted:#a0a5af;--line:#353840;--accent:#67c8d6;--accent-soft:#20393e;--header:rgba(27,28,32,.96);--code:#292d34}
*{box-sizing:border-box}html{scroll-padding-top:105px}body{margin:0;background:var(--bg);color:var(--text);font-size:15px;line-height:1.8}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button,input{font:inherit}button{cursor:pointer;color:inherit}button:disabled{cursor:default}button,a,input,summary{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--accent);outline-offset:4px}button{border:1px solid var(--line);background:var(--bg);border-radius:6px;padding:5px 10px}kbd{font-size:11px;color:var(--muted);border:1px solid var(--line);border-radius:4px;padding:0 5px}h1,h2,h3{line-height:1.45;letter-spacing:-.02em}h1{font-size:34px;font-weight:680;margin:14px 0 16px}h2{font-size:23px;margin:42px 0 18px;padding-top:28px;border-top:1px solid var(--line);scroll-margin-top:100px}h3{font-size:17px;margin:27px 0 12px}p{margin:14px 0}ul,ol{padding-left:23px;margin:16px 0}li+li{margin-top:8px}code{background:var(--code);padding:3px 6px;border-radius:4px;font-size:.92em}strong{font-weight:650}[hidden]{display:none!important}.skip-link{position:fixed;top:-60px;left:16px;z-index:100;background:var(--bg);padding:8px 14px}.skip-link:focus{top:8px}
.site-header{height:var(--header-height);position:fixed;inset:0 0 auto;z-index:30;display:flex;align-items:center;border-bottom:1px solid var(--line);background:var(--header);padding:0 32px;gap:36px}.brand{display:flex;align-items:center;gap:12px;color:var(--text);font-size:18px;font-weight:650;white-space:nowrap;width:calc(var(--sidebar-width) - 32px);flex-shrink:0}.brand:hover{text-decoration:none}.brand b{font-weight:450;color:var(--muted);margin-left:3px}.brand-mark{display:grid;place-items:center;background:var(--accent);color:var(--bg);font:700 19px Georgia,serif;width:28px;height:30px;border-radius:6px}.search-trigger{display:flex;align-items:center;justify-content:space-between;width:230px;color:var(--muted);font-size:13px;background:var(--panel);text-align:left;padding:7px 12px}.site-header nav{display:flex;align-items:center;gap:25px;margin-left:auto;white-space:nowrap;font-size:14px}.site-header nav>a{color:var(--text)}.site-header nav>a[aria-current=page]{color:var(--accent)}#theme-toggle{font-size:20px;padding:0 8px;border:0;background:transparent}
.sidebar{position:fixed;inset:var(--header-height) auto 0 0;width:var(--sidebar-width);background:var(--panel);border-right:1px solid var(--line);overflow-y:auto;padding:28px 22px 30px 28px;overscroll-behavior:contain;scrollbar-width:thin}.sidebar-label{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:11px;letter-spacing:.1em;margin:0 8px 20px}.sidebar-label span{font-size:10px;border:1px solid var(--line);border-radius:4px;letter-spacing:0;padding:0 5px}.nav-group{margin-bottom:20px}.nav-group-heading{display:flex;align-items:center;justify-content:space-between;font-weight:650}.nav-group-heading>a{color:var(--text);padding:4px 7px}.group-toggle{padding:0 5px;border:0;background:transparent;color:var(--muted)}.group-toggle[aria-expanded=false]{transform:rotate(-90deg)}.nav-children{margin-top:6px;font-size:13px}.nav-children a{display:block;padding:5px 10px;color:var(--muted);border-radius:4px;line-height:1.7}.nav-children a:hover{background:var(--line);text-decoration:none;color:var(--text)}.sidebar a[aria-current=page]{background:var(--accent-soft);color:var(--accent);font-weight:600}.chapter{margin:3px 0}.chapter summary{cursor:pointer;color:var(--muted);list-style:none;padding:5px 6px 5px 10px;position:relative;padding-right:20px}.chapter summary::-webkit-details-marker{display:none}.chapter summary:after{content:'›';position:absolute;right:8px}.chapter[open]>summary:after{transform:rotate(90deg)}.chapter[open]>summary{color:var(--text)}.chapter>div{border-left:1px solid var(--line);margin:3px 0 8px 13px;padding-left:7px}.sidebar-bottom{border-top:1px solid var(--line);padding:20px 8px 0;font-size:12px}.sidebar-bottom a{display:block;padding:4px 0;color:var(--muted)}.sidebar-bottom p{font-size:11px;color:var(--muted);margin-top:24px}
.page-layout{margin-left:var(--sidebar-width);padding:calc(var(--header-height) + 38px) 40px 70px 64px;display:grid;grid-template-columns:minmax(0,780px) 172px;gap:64px;max-width:1250px}main{min-width:0}.doc-page{padding-bottom:22px;scroll-margin-top:110px}.doc-page+.doc-page{border-top:1px solid var(--line);padding-top:36px}.js .doc-page{border-top:0;padding-top:0}.breadcrumb{font-size:12px;color:var(--muted);display:flex;flex-wrap:wrap;gap:9px;align-items:center}.breadcrumb a{color:var(--muted)}.breadcrumb span{color:var(--line)}.lead{font-size:16px;color:var(--muted);line-height:1.95;margin-bottom:30px}.table-wrap{overflow:auto;margin:24px 0;border:1px solid var(--line);border-radius:6px}table{border-collapse:collapse;width:100%;font-size:14px;line-height:1.75}th{text-align:left;background:var(--panel);font-weight:600;white-space:nowrap}th,td{padding:13px 16px;border-bottom:1px solid var(--line);vertical-align:top}tr:last-child td{border-bottom:0}td:first-child{min-width:110px}td:last-child{min-width:136px}.page-toc{position:sticky;top:calc(var(--header-height) + 42px);align-self:start;border-left:1px solid var(--line);padding-left:20px;max-height:calc(100vh - 160px);overflow-y:auto;font-size:12px}.page-toc>p{font-weight:600;margin:0 0 12px;font-size:13px}.page-toc nav a{display:block;color:var(--muted);line-height:1.7;margin:9px 0}.page-toc nav a:hover{color:var(--accent)}.toc-note{border-top:1px solid var(--line);padding-top:15px;margin-top:26px;color:var(--muted);font-size:11px}.topic-list{list-style:none;padding:0}.topic-list li{border-bottom:1px solid var(--line);padding:11px 0;margin:0}.topic-list li>a{font-weight:500}.topic-list li>span{display:block;color:var(--muted);font-size:13px;margin-top:4px;line-height:1.75}.article-footer{border-top:1px solid var(--line);margin-top:45px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;font-size:11px;color:var(--muted)}.mobile-bar{display:none}.noscript-note{position:fixed;bottom:0;right:0;background:var(--panel);border:1px solid var(--line);padding:8px 15px;font-size:12px}
dialog{width:min(640px,calc(100vw - 32px));max-height:80vh;position:fixed;top:12vh;margin:0 auto;border:1px solid var(--line);border-radius:12px;padding:22px;background:var(--bg);color:var(--text);box-shadow:0 20px 90px #0003}dialog::backdrop{background:#151b2570;backdrop-filter:blur(3px)}.search-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;font-size:14px;font-weight:600}.search-header button{font-size:11px;color:var(--muted)}#doc-search{width:100%;background:var(--panel);border:1px solid var(--line);border-radius:7px;color:var(--text);padding:12px}#search-status{font-size:12px;color:var(--muted);margin:10px 0}#search-results{padding:0;list-style:none;max-height:48vh;overflow:auto}#search-results li{margin:0}#search-results a{display:block;padding:10px;border-radius:5px;color:var(--text)}#search-results a:hover,#search-results a:focus{background:var(--accent-soft);text-decoration:none}#search-results small{display:block;color:var(--muted);font-size:12px;margin-top:3px}
@media(min-width:1650px){.page-layout{margin-left:max(var(--sidebar-width),calc((100vw - 1650px)/2 + var(--sidebar-width)))}.sidebar{padding-left:max(28px,calc((100vw - 1650px)/2));width:max(var(--sidebar-width),calc((100vw - 1650px)/2 + var(--sidebar-width)))}}
@media(max-width:1250px){.page-layout{padding-left:40px;gap:36px;grid-template-columns:minmax(0,1fr) 150px}.site-header{gap:20px;padding:0 24px}.search-trigger{width:190px}.site-header nav{gap:18px}}
@media(max-width:1080px){.page-toc{display:none}.page-layout{grid-template-columns:minmax(0,1fr);padding-right:44px}.search-trigger{width:170px}.site-header nav{gap:14px}.site-header nav>a:first-child{display:none}}
@media(max-width:800px){:root{--header-height:60px}.site-header{padding:0 18px;gap:12px}.brand{width:auto;font-size:16px}.brand-mark{width:24px;height:26px}.site-header nav{gap:12px}.site-header nav>a{display:none}.search-trigger{margin-left:auto;width:auto;font-size:12px;padding:5px 9px}.search-trigger kbd{display:none}.site-header nav{margin-left:0}.mobile-bar{position:fixed;display:flex;inset:60px 0 auto;height:44px;background:var(--panel);border-bottom:1px solid var(--line);z-index:25;align-items:center;justify-content:space-between;padding:0 18px;font-size:11px;color:var(--muted)}.mobile-bar button{border:0;background:transparent;padding:0;color:var(--text);font-size:13px}.sidebar{inset:104px 0 0;width:100%;z-index:24;display:none;padding:20px 28px}.sidebar.mobile-open{display:block}.page-layout{margin-left:0;padding:132px 24px 45px;display:block}.lead{font-size:15px}h1{font-size:28px}h2{font-size:21px;margin-top:32px;padding-top:24px;scroll-margin-top:125px}.breadcrumb{font-size:11px}.article-footer{flex-direction:column;gap:4px}table{font-size:13px}th,td{padding:10px 12px}html{scroll-padding-top:124px}.doc-page{scroll-margin-top:124px}body.menu-open{overflow:hidden}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
@media print{.site-header,.sidebar,.page-toc,.mobile-bar,dialog,.skip-link,.article-footer{display:none!important}.page-layout{display:block;margin:0;padding:0}.doc-page[hidden]{display:none!important}:root{--bg:white;--text:black;--muted:#444;--line:#ccc;--panel:#eee}a{color:inherit}h2{break-after:avoid}.table-wrap{overflow:visible}}

.manual-screenshot{margin:26px 0 18px;break-inside:avoid}.manual-screenshot>a{display:block;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#f7f8fa;cursor:zoom-in}.manual-screenshot img{display:block;width:100%;height:auto}.manual-screenshot figcaption{font-size:12px;line-height:1.8;color:var(--muted);margin-top:10px}.manual-screenshot figcaption strong{color:var(--text);font-weight:600}.manual-screenshot figcaption small{display:block;margin-top:4px;font-size:11px}.screenshot-source{font-size:11px;color:var(--muted);line-height:1.8;margin:10px 0 28px}
.pagination{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding-top:24px;margin-top:36px;font-size:13px}.pagination a{max-width:48%}.pagination a:last-child{text-align:right}
.getting-started{border-bottom:1px solid var(--line);padding:0 0 18px;margin-bottom:22px}.getting-started p{margin:0 8px 8px;color:var(--muted);font-size:11px}.getting-started a{display:block;color:var(--text);padding:5px 9px;font-size:13px;border-radius:4px}.code-block{margin:20px 0;background:var(--panel);border:1px solid var(--line);border-radius:7px;overflow:hidden}.code-heading{display:flex;align-items:center;justify-content:space-between;padding:8px 14px;border-bottom:1px solid var(--line);font-size:11px;color:var(--muted)}.copy-code{font-size:11px;padding:2px 9px}.code-block pre{margin:0;padding:16px;overflow:auto;line-height:1.7;font-size:12px;tab-size:2}.code-block pre code{padding:0;background:transparent;color:var(--text);font:inherit;font-family:ui-monospace,SFMono-Regular,Consolas,monospace}
@media(max-width:800px){html:not(.js) .sidebar{display:block;position:static;width:100%;padding-top:125px}html:not(.js) .page-layout{padding-top:24px}html:not(.js) .mobile-bar{display:none}}