.doc{background:var(--bg);color:var(--text);padding:48px 0}
.doc-container{width:var(--container-w);max-width:var(--container-max);margin:0 auto;display:grid;grid-template-columns:1fr;gap:28px;align-items:start}
.doc-header{grid-column:1 / -1;margin:0 0 16px}
.doc-header h1{font-family:'Bold';font-size:clamp(1.8rem,1.2rem + 2vw,2.6rem);margin:0 0 6px}
.doc-meta{color:var(--text-muted);display:flex;gap:8px;flex-wrap:wrap;margin:0}
.doc-meta .dot{opacity:.5}
.doc-toc{position:sticky;top:calc(var(--header-height) + 16px);border:1px solid var(--line);background:var(--bg-elev-2);border-radius:var(--radius-lg);padding:16px;box-shadow:0 8px 24px var(--shadow);height:max-content}
.doc-toc h2{font-size:1.25rem;margin:0 0 8px;font-family:'Bold'}
.doc-toc ol{margin:0;padding-left:16px;line-height:1.6}
.doc-toc a{color:var(--text-dim)}
.doc-toc a:hover{color:var(--red)}
.doc-body{grid-column:1}
.doc-section{padding:0;margin:28px 0;scroll-margin-top:calc(var(--header-height) + 16px)}
.doc-section h2{font-family:'Bold';font-size:1.25rem;margin:0 0 10px}
.doc-section p{color:var(--text-dim);line-height:1.7;margin:0 0 12px}
.doc-section ul{margin:0 0 12px 18px;color:var(--text-dim);line-height:1.65}
.doc-section .note{background:transparent;border:none;border-radius:0;padding:0;color:var(--text)}
.list{list-style:disc inside;padding-left:0}
.list li{margin:6px 0}
.back-to-top{display:inline-flex;align-items:center;gap:8px;background:#fff;color:#000!important;border-radius:var(--radius-pill);padding:10px 16px;font-family:'Bold'}
.back-to-top:hover{background:#d4d4d4!important}
@media (max-width:1024px){
  .doc-container{grid-template-columns:1fr}
  .doc-header{grid-column:auto}
  .doc-toc{position:relative;top:auto}
  .doc-body{grid-column:auto}
}
@media (max-width:480px){
  .doc-container{width:92%}
}