*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Arial,sans-serif;color:#1a1c20;background:#fff;line-height:1.6}
.topbar{background:#0a0a0a;color:#e8e2da;padding:12px 22px;display:flex;align-items:center;gap:16px;position:sticky;top:0;z-index:5}
.topbar .brand{color:#C9956C;font-weight:800;text-decoration:none;letter-spacing:.02em;font-family:"JetBrains Mono",ui-monospace,monospace}
.topbar .tag{color:#9aa0a8;font-size:12px}
.wrap{max-width:1180px;margin:0 auto;padding:0 22px}
.crumb{font-family:ui-monospace,monospace;font-size:12px;color:#7a7f87;padding:16px 0 6px}
.crumb a{color:#a06a3f;text-decoration:none}.crumb span{margin:0 6px;color:#c8ccd2}
.cols{display:grid;grid-template-columns:230px 1fr;gap:36px;align-items:start}
.rail{position:sticky;top:64px;font-size:13px;border-right:1px solid #ececf0;padding-right:18px}
.rl-id{font-family:ui-monospace,monospace;font-weight:700;color:#0a0a0a;font-size:12px;letter-spacing:.04em;padding:6px 0 12px;border-bottom:1px solid #ececf0;margin-bottom:12px}
.rl-sec h4{margin:14px 0 6px;font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:#8a9099;font-weight:700}
.rail ul,.rail ol{margin:0;padding:0;list-style:none}
.rail li{margin:3px 0}.rail li.none{color:#b6bbc2}
.rail a{color:#a06a3f;text-decoration:none;font-family:ui-monospace,monospace;font-size:11.5px}
.rail a:hover{text-decoration:underline}
.rl-gl{margin:14px 0}.rl-gl a{font-weight:700}
.rl-nav{margin-top:16px;padding-top:12px;border-top:1px solid #ececf0;display:flex;flex-direction:column;gap:6px}
.ro li{counter-increment:none}
.doc{min-width:0;max-width:760px;padding-bottom:60px}
.doc h1{font-size:31px;line-height:1.15;letter-spacing:-.02em;margin:8px 0 18px}
.doc h2{font-size:22px;margin:34px 0 10px;padding-bottom:6px;border-bottom:1px solid #ececf0;letter-spacing:-.01em}
.doc h3{font-size:17px;margin:24px 0 8px}
.doc h4{font-size:14px;margin:18px 0 6px;color:#33363c}
.doc p{margin:10px 0}
.doc a{color:#a06a3f}
.doc a.gl{color:#7a5a8a;border-bottom:1px dotted #b8a0c8;text-decoration:none}
.doc blockquote{margin:16px 0;padding:10px 16px;border-left:3px solid #C9956C;background:#faf7f3;color:#33363c}
.doc code{background:#f3f4f6;padding:1px 5px;border-radius:4px;font-size:.9em;font-family:ui-monospace,monospace}
.doc pre{background:#0d1117;color:#d7dae0;padding:16px;border-radius:8px;overflow:auto;font-size:12.5px;line-height:1.45}
.doc pre code{background:none;padding:0;color:inherit}
.doc table{border-collapse:collapse;width:100%;margin:16px 0;font-size:14px;display:block;overflow-x:auto}
.doc th,.doc td{border:1px solid #e4e6ea;padding:7px 10px;text-align:left;vertical-align:top}
.doc th{background:#f7f8fa;font-weight:700}
.doc hr{border:0;border-top:1px solid #ececf0;margin:26px 0}
.doc ul,.doc ol{padding-left:22px}
.doc li{margin:4px 0}
.foot{border-top:1px solid #ececf0;margin-top:40px;padding:26px 22px;color:#7a7f87;font-size:12.5px}
.foot p{max-width:1180px;margin:6px auto}
/* index */
.grp{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:#8a9099;border:0;margin:28px 0 12px}
.cards{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.card{display:block;border:1px solid #e6e8ec;border-radius:12px;padding:16px 18px;text-decoration:none;color:inherit;transition:border-color .15s,box-shadow .15s}
.card:hover{border-color:#C9956C;box-shadow:0 2px 14px rgba(201,149,108,.12)}
.card.resv{opacity:.6;border-style:dashed}
.cid{font-family:ui-monospace,monospace;font-size:11px;color:#a06a3f;letter-spacing:.03em}
.ct{font-weight:800;font-size:16px;margin:4px 0 5px;letter-spacing:-.01em}
.cd{font-size:12.5px;color:#5a5f67;line-height:1.45}
.lede{font-size:17px;line-height:1.55}
@media(max-width:820px){
  .cols{grid-template-columns:1fr;gap:0}
  .rail{position:static;border-right:0;border-bottom:1px solid #ececf0;padding:0 0 14px;margin-bottom:18px}
  .cards{grid-template-columns:1fr}
  .doc h1{font-size:26px}.doc{max-width:100%}
  .topbar .tag{display:none}
}

.apqc-fig{margin:22px 0;padding:0}.apqc-fig svg{width:100%;height:auto;border:1px solid #ececf0;border-radius:12px;background:#0a0b0d}.apqc-fig figcaption{font-size:12.5px;color:#7a7f87;margin-top:8px;text-align:center}.apqc-demos{margin:30px 0}.apqc-demos .card{background:#0d0e11;color:#e8e8e8;border-color:#23262c}.apqc-demos .card:hover{border-color:#4ade80}.apqc-demos .cid{color:#4ade80}.apqc-demos .ct{color:#fff}.apqc-demos .cd{color:#aeb3ba}

/* --- Site-nav clearance ---------------------------------------------------
   The shared site nav is position:fixed; top:0 (~80px tall) and overlays the
   page. Reserve space so /apqc/* content and the sticky rail sit below it
   (matches the 80px clearance standard pages use). */
body{padding-top:80px}
.rail{top:96px}
@media(max-width:820px){body{padding-top:64px}}