:root{color-scheme:dark;--bg:#0a0e17;--surface:#111827;--fg:#e2e8f0;--strong:#f8fafc;--muted:#a8b6c9;--line:#36465c;--link:#93c5fd;--field:#111827;--selected:#172b46;--focus:#93c5fd}
:root[data-theme=light]{color-scheme:light;--bg:#fff;--surface:#f3f6fa;--fg:#334155;--strong:#0f172a;--muted:#52627a;--line:#a8b6c9;--link:#1d4ed8;--field:#fff;--selected:#e8f0fc;--focus:#2563eb}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.8 "Microsoft YaHei","PingFang SC",system-ui,sans-serif}a{color:var(--link);text-underline-offset:4px}a:hover{text-decoration-thickness:2px}button,input{font:inherit;color:inherit}button{cursor:pointer}button:disabled{cursor:wait}::selection{background:var(--selected);color:var(--strong)}:focus-visible{outline:3px solid var(--focus);outline-offset:3px}input{caret-color:var(--link)}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;top:-70px;left:16px;padding:8px 16px;background:var(--surface);z-index:10}.skip-link:focus{top:10px}
.help-header{min-height:76px;display:flex;align-items:center;gap:22px;padding:14px max(24px,calc((100vw - 1280px)/2));border-bottom:1px solid var(--line);background:var(--bg)}.help-brand{font-size:19px;font-weight:700;color:var(--strong);white-space:nowrap;text-decoration:none}.help-brand span{font-size:15px;font-weight:400;margin-left:10px;color:var(--muted)}.help-search{display:flex;margin-left:auto;width:390px;max-width:100%;border:1px solid var(--line);border-radius:8px;background:var(--field)}.help-search:focus-within{outline:2px solid var(--focus);outline-offset:2px}.help-search input{border:0;background:transparent;width:100%;min-width:0;padding:7px 12px;outline:none;font-size:14px}.help-search input::placeholder{color:var(--muted);opacity:1}.help-search button,.help-theme{display:grid;place-items:center;width:42px;min-width:42px;height:42px;padding:0;border:0;background:transparent;border-radius:8px;color:var(--muted)}.help-search button:hover,.help-theme:hover{background:var(--selected);color:var(--strong)}.help-return{white-space:nowrap;font-size:14px}.help-menu{display:none}
.help-layout{display:grid;grid-template-columns:240px minmax(0,1fr);max-width:1280px;margin:auto;gap:56px;padding:36px 24px 64px}.help-nav{align-self:start;position:sticky;top:24px;font-size:14px;max-height:calc(100vh - 48px);overflow:auto;padding:0 8px 20px 0}.help-nav h2{font-size:13px;color:var(--muted);font-weight:700;margin:24px 10px 8px}.help-nav a{display:block;padding:7px 10px;color:var(--fg);text-decoration:none;border-radius:6px;line-height:1.6}.help-nav a:hover{background:var(--surface)}.help-nav a[aria-current=page]{background:var(--selected);color:var(--link);font-weight:700}.help-nav .help-index-link{font-weight:700;color:var(--strong)}.help-main{min-width:0;max-width:850px}.help-breadcrumb{display:flex;flex-wrap:wrap;gap:10px;color:var(--muted);font-size:13px;margin-bottom:26px}.help-breadcrumb a{color:var(--muted);text-decoration:none}h1{font-size:30px;line-height:1.4;letter-spacing:-.02em;color:var(--strong);margin:0 0 16px;text-wrap:balance}.help-lead{font-size:17px;max-width:72ch;line-height:1.8;margin:0 0 16px}.help-meta{font-size:13px;color:var(--muted);margin:0 0 28px}.help-toc{background:var(--surface);padding:12px 18px;margin-bottom:32px;border-radius:8px;font-size:14px}.help-toc summary{cursor:pointer;font-weight:700;color:var(--strong);min-height:28px}.help-toc ul{margin:10px 0 4px;padding-left:22px}.help-toc li{margin:3px 0}.help-prose{max-width:74ch;overflow-wrap:anywhere}.help-prose h2{font-size:22px;line-height:1.5;color:var(--strong);margin:38px 0 14px;text-wrap:balance;scroll-margin-top:24px}.help-prose h3{font-size:18px;line-height:1.5;color:var(--strong);margin:30px 0 12px;scroll-margin-top:24px}.help-prose p{margin:0 0 18px}.help-prose ul,.help-prose ol{padding-left:24px;margin:0 0 20px}.help-prose li{margin:7px 0}.help-prose blockquote{margin:22px 0;padding:14px 18px;background:var(--surface);border-radius:8px}.help-prose blockquote p:last-child{margin:0}.help-prose code{background:var(--surface);padding:2px 5px;font-size:14px;border-radius:4px}.help-prose pre{overflow:auto;padding:16px;background:var(--surface);border-radius:8px}.help-prose table{width:100%;border-collapse:collapse;font-size:14px;font-variant-numeric:tabular-nums;margin:20px 0}.help-prose th,.help-prose td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}.help-prose th{color:var(--strong);background:var(--surface)}.table-scroll{overflow-x:auto;max-width:100%;margin-bottom:20px}.table-scroll table{min-width:460px;margin-bottom:0}.table-hint{font-size:13px;color:var(--muted);margin:0 0 6px}.help-topics{margin:0}.help-topics>div{padding:18px 0;border-bottom:1px solid var(--line)}.help-topics dt{font-size:17px;font-weight:700}.help-topics dd{margin:5px 0 0;font-size:14px;color:var(--muted)}.help-neighbors{display:flex;justify-content:space-between;gap:24px;border-top:1px solid var(--line);padding-top:24px;margin-top:44px;font-size:14px}.help-neighbors a{flex:1}.help-neighbors span{display:block;font-size:12px;color:var(--muted)}.help-footer{font-size:13px;color:var(--muted);margin-top:36px}.help-footer p{margin:12px 0 0}.search-results{border-bottom:1px solid var(--line);padding-bottom:28px;margin-bottom:32px}.search-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.search-head h2{font-size:22px;margin:0;color:var(--strong)}.search-close{background:transparent;border:1px solid var(--line);border-radius:8px;padding:6px 12px;font-size:14px}.search-status{font-size:14px;color:var(--muted)}.search-list a{display:block;padding:14px 0;border-bottom:1px solid var(--line);text-decoration:none;font-weight:700}.search-list p{font-size:14px;color:var(--fg);margin:4px 0 0;font-weight:400}
@media(max-width:850px){.help-header{flex-wrap:wrap;gap:10px;padding:12px 20px}.help-brand{margin-right:auto}.help-menu{display:block;background:transparent;border:1px solid var(--line);border-radius:8px;padding:6px 12px;font-size:14px;min-height:42px}.help-return{font-size:13px}.help-search{order:5;width:100%;margin:0}.help-layout{display:block;padding:24px 20px 48px}.help-nav{position:static;max-height:none;padding:0 0 24px;margin-bottom:24px;border-bottom:1px solid var(--line)}.help-enhanced .help-nav{display:none}.help-enhanced .help-nav.is-open{display:block}.help-nav section{margin-top:12px}.help-breadcrumb{margin-bottom:22px}h1{font-size:25px}.help-lead{font-size:16px}.help-prose h2{font-size:21px}.help-toc{margin-bottom:26px}.help-neighbors{flex-direction:column;gap:16px}}
:root:not(.help-enhanced) .help-search,:root:not(.help-enhanced) .help-menu,:root:not(.help-enhanced) .help-theme{display:none}
@media(max-width:420px){.help-brand{font-size:17px}.help-brand span{font-size:13px;margin-left:6px}.help-header{padding:12px 16px;gap:8px}.help-layout{padding:24px 16px 40px}.help-return{width:100%;text-align:right;order:6}.help-prose th,.help-prose td{padding:9px 10px}}
@media(prefers-reduced-motion:no-preference){.help-nav a,.help-theme{transition:background-color 160ms ease-out}}
@media(forced-colors:active){.help-nav a[aria-current=page]{outline:2px solid Highlight}.help-search,.help-toc{border:1px solid CanvasText}}
.help-figure{margin:26px 0 32px;max-width:100%}.help-figure>a{display:block;width:fit-content;max-width:100%;line-height:0}.help-figure img{display:block;max-width:100%;height:auto;border:1px solid var(--line);border-radius:8px;background:#0a0e17}.help-figure figcaption{font-size:14px;line-height:1.7;color:var(--muted);margin-top:10px}