.fcd{--bg:#161616;--panel:#1d1d1d;--card:#232323;--border:#313131;--border-soft:#2a2a2a;--text:#ededed;--muted:#a3a3a3;--faint:#6f6f6f;--violet:#8b7df0;--violet-bright:#a99bff;--violet-dim:rgba(108,94,220,0.14);--radius:12px;--mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,monospace;min-height:100vh;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,sans-serif;-webkit-font-smoothing:antialiased}.fcd-nav{position:sticky;top:0;z-index:40;display:flex;align-items:center;justify-content:space-between;height:58px;padding:0 20px;background:rgba(22,22,22,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-soft)}.fcd-brand{display:inline-flex;align-items:center;gap:9px;font-weight:650;letter-spacing:-.01em;color:var(--text);text-decoration:none}.fcd-brand-dot{width:9px;height:9px;border-radius:3px;background:linear-gradient(135deg,var(--violet-bright),var(--violet));box-shadow:0 0 12px rgba(139,125,240,.6)}.fcd-nav-right{display:flex;align-items:center;gap:8px}.fcd-nav-link{padding:7px 12px;font-size:14px;color:var(--muted);text-decoration:none;border-radius:8px;transition:color .15s ease,background .15s ease}.fcd-nav-link:hover{color:var(--text);background:var(--border-soft)}.fcd-nav-cta{padding:7px 14px;font-size:14px;font-weight:600;color:#fff;text-decoration:none;border-radius:8px;background:linear-gradient(135deg,#6c5edc,#5b50ca);transition:filter .15s ease}.fcd-nav-cta:hover{filter:brightness(1.1)}.fcd-shell{display:grid;grid-template-columns:232px minmax(0,1fr);gap:48px;max-width:1080px;margin:0 auto;padding:0 24px 96px}@media (max-width:860px){.fcd-shell{grid-template-columns:1fr;gap:0}}.fcd-toc{position:sticky;top:78px;align-self:start;padding-top:44px;max-height:calc(100vh - 78px);overflow-y:auto}@media (max-width:860px){.fcd-toc{display:none}}.fcd-toc-label{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);padding:0 10px 10px}.fcd-toc a{display:block;padding:6px 10px;font-size:13.5px;color:var(--muted);text-decoration:none;border-left:2px solid transparent;border-radius:0 6px 6px 0;transition:color .15s ease,background .15s ease,border-color .15s ease}.fcd-toc a:hover{color:var(--text);background:var(--border-soft)}.fcd-toc a.is-active{color:var(--violet-bright);border-left-color:var(--violet);background:var(--violet-dim)}.fcd-main{padding-top:44px;min-width:0}.fcd-head{margin-bottom:40px}.fcd-eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--violet-bright)}.fcd-title{margin:12px 0 10px;font-size:clamp(30px,4.4vw,40px);font-weight:720;letter-spacing:-.03em;line-height:1.05}.fcd-sub{max-width:560px;font-size:16px;line-height:1.6;color:var(--muted)}.fcd-sec{padding-top:40px;margin-top:40px;border-top:1px solid var(--border-soft);scroll-margin-top:74px}.fcd-sec:first-of-type{border-top:0;margin-top:0}.fcd-sec-index{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--faint)}.fcd-sec-title{margin:8px 0 6px;font-size:23px;font-weight:680;letter-spacing:-.02em}.fcd-sec p{max-width:620px;font-size:15px;line-height:1.65;color:var(--muted);margin:12px 0}.fcd-sec li code,.fcd-sec p code{font-family:var(--mono);font-size:.86em;padding:2px 6px;border-radius:5px;background:var(--card);border:1px solid var(--border-soft);color:var(--violet-bright)}.fcd-sec a.fcd-inline{color:var(--violet-bright);text-decoration:none;border-bottom:1px solid rgba(169,155,255,.35)}.fcd-sec a.fcd-inline:hover{border-bottom-color:var(--violet-bright)}.fcd-sec ul{max-width:620px;margin:12px 0;padding-left:0;list-style:none}.fcd-sec li{position:relative;padding-left:18px;margin:8px 0;font-size:15px;line-height:1.6;color:var(--muted)}.fcd-sec li:before{content:"";position:absolute;left:2px;top:10px;width:5px;height:5px;border-radius:2px;background:var(--violet)}.fcd-sec li b,.fcd-subhead{color:var(--text);font-weight:600}.fcd-subhead{margin:26px 0 8px;font-size:13px}.fcd-code{margin:14px 0;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--panel)}.fcd-code-top{display:flex;align-items:center;justify-content:space-between;padding:7px 12px;border-bottom:1px solid var(--border-soft);background:rgba(0,0,0,.18)}.fcd-code-lang{font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--faint)}.fcd-copy{display:inline-flex;align-items:center;gap:5px;padding:3px 8px;font-size:11.5px;color:var(--muted);background:transparent;border:1px solid var(--border);border-radius:6px;cursor:pointer;transition:color .15s ease,border-color .15s ease}.fcd-copy:hover{color:var(--text);border-color:var(--violet)}.fcd-copy.is-copied{color:#7ee2b8;border-color:rgba(126,226,184,.5)}.fcd-code pre{margin:0;padding:14px 16px;overflow-x:auto;font-family:var(--mono);font-size:13px;line-height:1.65;color:#e6e6e6}.fcd-code pre .tok-c{color:var(--faint)}.fcd-code pre .tok-k{color:var(--violet-bright)}.fcd-code pre .tok-s{color:#9ecb8a}.fcd-note{display:flex;gap:11px;margin:16px 0;padding:13px 15px;border:1px solid rgba(139,125,240,.28);border-radius:10px;background:var(--violet-dim);font-size:14px;line-height:1.55;color:#d9d3ff}.fcd-note b{color:#fff}.fcd-note-ico{flex-shrink:0;color:var(--violet-bright);margin-top:1px}.fcd-foot{border-top:1px solid var(--border-soft);padding:28px 24px;text-align:center;font-size:13px;color:var(--faint)}.fcd-foot a{color:var(--muted);text-decoration:none}.fcd-foot a:hover{color:var(--text)}
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