.doc-app{--doc-nav-w:264px;--doc-topbar-h:48px;--doc-bg:#fff;--doc-surface:#fff;--doc-sidebar:#fafafa;--doc-soft:#f4f5f7;--doc-hover:#eef0f2;--doc-line:#eceef1;--doc-line-strong:#e1e4e8;--doc-ink:#1f2329;--doc-body:#1f2329;--doc-ink-2:#4e5969;--doc-muted:#86909c;--doc-accent:var(--ring);--doc-accent-ink:#fff;--doc-accent-soft:color-mix(in oklab,var(--doc-accent)8%,white);--doc-accent-line:color-mix(in oklab,var(--doc-accent)28%,white);--doc-accent-hover:color-mix(in oklab,var(--doc-accent)88%,black);--doc-inline-code:#f4f5f7;--doc-code-bg:#f4f5f7;--doc-code-ink:#24292f;--doc-hl-comment:#6e7781;--doc-hl-keyword:#cf222e;--doc-hl-string:#0a3069;--doc-hl-title:#8250df;--doc-hl-number:#0550ae;--doc-hl-attr:#116329;--doc-hl-type:#953800;--doc-reading-size:16px;grid-template-columns:var(--doc-nav-w)minmax(0,1fr);grid-template-rows:var(--doc-topbar-h)minmax(0,1fr);background:var(--doc-bg);height:100dvh;color:var(--doc-ink);font-family:var(--font-geist-sans),"PingFang SC","Microsoft YaHei","Segoe UI",system-ui,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;display:grid;overflow:hidden}.dark .doc-app{--doc-bg:#1c2028;--doc-surface:#232833;--doc-sidebar:#1f242d;--doc-soft:#242a34;--doc-hover:#272e39;--doc-line:#2f3744;--doc-line-strong:#3b4554;--doc-ink:#e8ebf0;--doc-body:#d8dde6;--doc-ink-2:#b4bdc9;--doc-muted:#8d98a8;--doc-accent:var(--ring);--doc-accent-ink:#141923;--doc-accent-soft:color-mix(in oklab,var(--doc-accent)12%,#1c2028);--doc-accent-line:color-mix(in oklab,var(--doc-accent)28%,#1c2028);--doc-accent-hover:color-mix(in oklab,var(--doc-accent)86%,white);--doc-inline-code:#2a303a;--doc-code-bg:#171b22;--doc-code-ink:#d7dce6;--doc-hl-comment:#8b949e;--doc-hl-keyword:#ff7b72;--doc-hl-string:#a5d6ff;--doc-hl-title:#d2a8ff;--doc-hl-number:#79c0ff;--doc-hl-attr:#7ee787;--doc-hl-type:#ffa657;--doc-shadow:0 14px 36px #0000006b}.doc-app.nav-collapsed{--doc-nav-w:0px}.doc-app *,.doc-app :before,.doc-app :after{box-sizing:border-box}:where(.doc-app) button,:where(.doc-app) input{font:inherit;color:inherit}:where(.doc-app) button{cursor:pointer;background:0 0;border:0;padding:0}.doc-app a{color:inherit;text-decoration:none}.doc-app svg{display:block}.doc-app :focus-visible{outline:2px solid var(--doc-accent);outline-offset:2px}.doc-app ::selection{background:var(--doc-accent-line);color:var(--doc-ink)}.doc-app .doc-icon-btn svg{width:17px;height:17px}.doc-topbar{height:var(--doc-topbar-h);border-bottom:1px solid var(--doc-line);background:#fafafa;grid-area:1/1/auto/-1;align-items:center;gap:2px;padding:0 14px;display:flex;position:relative}.dark .doc-topbar{background:var(--doc-sidebar)}.doc-icon-btn{width:30px;height:30px;color:var(--doc-muted);border-radius:4px;flex:none;place-items:center;transition:background .15s,color .15s;display:grid}.doc-icon-btn:hover{background:var(--doc-hover);color:var(--doc-ink)}.doc-topbar-title{min-width:0;color:var(--doc-ink-2);text-overflow:ellipsis;white-space:nowrap;padding-right:38px;font-size:14.5px;font-weight:500;overflow:hidden}.doc-topbar-progress{width:calc(100%*var(--doc-progress,0));background:var(--doc-accent);height:2px;transition:width 80ms linear;position:absolute;bottom:-1px;left:0;right:0}.doc-stage{background:var(--doc-bg);scroll-behavior:smooth;grid-area:2/2;min-width:0;min-height:0;overflow:hidden auto}.doc-app.nav-collapsed .doc-stage{grid-column:2}.doc-canvas{width:100%;max-width:900px;margin:0 auto;padding:0 0 48px}.doc-paper{width:100%;max-width:900px;box-shadow:none;background:0 0;border:0;border-radius:0;margin:0 auto}.doc-nav-backdrop{display:none}
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.doc-cover{background:var(--doc-soft);width:100%;height:180px;margin:0;position:relative;overflow:hidden}.doc-cover img{object-fit:cover;width:100%;height:100%}.doc-paper-head{padding:22px 32px 0;position:relative}.doc-meta{color:var(--doc-muted);flex-wrap:wrap;align-items:center;gap:0;margin:0 0 11px;font-size:13.5px;line-height:1.6;display:flex}.doc-meta-author{color:var(--doc-ink-2);font-weight:500}.doc-meta-item{align-items:center;display:inline-flex}.doc-meta-item:before{content:"·";color:var(--doc-line-strong);margin:0 8px}.doc-meta-badge{background:var(--doc-soft);height:20px;color:var(--doc-muted);border-radius:3px;align-items:center;margin-left:8px;padding:0 6px;font-size:12px;line-height:1;display:inline-flex}.doc-tags{flex-wrap:wrap;align-items:center;gap:4px;margin:0 0 13px;padding:0;list-style:none;display:flex}.doc-tags li{background:var(--doc-soft);color:var(--doc-muted);border-radius:3px;padding:1px 7px;font-size:12px;line-height:1.6}.doc-head-actions{top:calc((var(--doc-topbar-h) - 28px)/2);z-index:70;align-items:center;gap:2px;height:28px;display:flex;position:fixed;right:14px}.doc-more-trigger{width:28px;height:28px;color:var(--doc-muted)}.doc-title{max-width:100%;color:var(--doc-ink);letter-spacing:-.015em;text-wrap:balance;margin:0;font-size:25px;font-weight:600;line-height:1.4}.doc-description{max-width:70ch;color:var(--doc-muted);text-wrap:pretty;margin:9px 0 0;font-size:15px;line-height:1.6}.doc-body{margin-top:18px;padding:0 32px 40px}.doc-pager{border-top:1px solid var(--doc-line);grid-template-columns:1fr 1fr;gap:24px;margin-top:36px;padding-top:16px;display:grid}.doc-pager-link{min-width:0;box-shadow:none;background:0 0;border:0;border-radius:0;flex-direction:column;gap:3px;padding:4px 0;transition:color .12s;display:flex}.doc-pager-label{color:var(--doc-muted);align-items:center;gap:4px;font-size:12.5px;display:flex}.doc-pager-label svg{width:12px;height:12px}.doc-pager-prev-icon{transform:rotate(180deg)}.doc-pager-title{color:var(--doc-ink-2);text-overflow:ellipsis;white-space:nowrap;font-size:15px;line-height:1.5;transition:color .12s;overflow:hidden}.doc-pager-link:hover .doc-pager-label,.doc-pager-link:hover .doc-pager-title{color:var(--doc-accent)}.doc-pager-link.is-next{text-align:right;align-items:flex-end}
.doc-more-menu{border-radius:6px;width:196px;padding:4px;font-size:14px}.doc-more-menu svg{width:15px;height:15px}
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var(--doc-line);background:var(--doc-surface);width:26px;height:26px;color:var(--doc-muted);opacity:.9;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;border-radius:4px;place-items:center;display:grid;position:absolute;top:8px;right:8px}.doc-app .doc-paper .doc-markdown button[aria-label=复制代码]:hover{background:var(--doc-soft);color:var(--doc-ink);opacity:1}.doc-app .doc-paper .doc-markdown button[aria-label=复制代码] svg{width:13px;height:13px}.doc-app .doc-paper .doc-markdown table{border-collapse:collapse;width:100%;box-shadow:none;border:0;border-radius:0;margin:16px 0;font-size:14.5px;line-height:1.55;overflow:hidden}.doc-app .doc-paper .doc-markdown thead{background:var(--doc-soft)}.doc-app .doc-paper .doc-markdown th{border:0;border-bottom:1px solid var(--doc-line);color:var(--doc-muted);letter-spacing:.01em;text-align:left;white-space:nowrap;background:0 0;padding:9px 12px;font-size:13px;font-weight:500}.doc-app .doc-paper .doc-markdown 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