:root{
  --doc-code-bg:var(--color-forest);
  --doc-code-text:var(--color-dark-text);
  --doc-code-muted:var(--color-dark-muted);
  --doc-rule:var(--color-border);
  --doc-aside-bg:var(--color-surface);
  --doc-table-head:var(--color-mark);
}
.deepdoc-hero{padding-top:72px;padding-bottom:58px;border-bottom:1px solid var(--color-border);background:radial-gradient(circle at 82% 10%,var(--color-mark),transparent 34%),var(--color-page)}
.deepdoc-hero-inner{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:end}
.deepdoc-hero-copy{display:grid;gap:18px;max-width:880px}
.deepdoc-hero-copy h1{max-width:820px}
.deepdoc-hero-copy .lead{max-width:820px}
.deepdoc-links{display:flex;flex-wrap:wrap;gap:12px}
.deepdoc-facts{display:grid;gap:10px;padding:22px;border:1px solid var(--color-border);border-radius:var(--radius-medium);background:var(--color-surface);box-shadow:var(--shadow-chip)}
.deepdoc-facts p{display:grid;gap:3px;padding-bottom:10px;border-bottom:1px solid var(--color-border)}
.deepdoc-facts p:last-child{padding-bottom:0;border-bottom:0}
.deepdoc-facts span{color:var(--color-muted);font-family:var(--font-mono);font-size:11px;letter-spacing:.08em}
.deepdoc-facts strong{font-size:14px}
.deepdoc-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:56px;align-items:start}
.deepdoc-toc{position:sticky;top:18px;display:grid;gap:6px;padding:10px}
.deepdoc-toc a{justify-content:flex-start;width:100%}
.deepdoc-article{min-width:0;max-width:860px}
.doc-intro{display:grid;gap:18px;margin-bottom:72px;padding-bottom:48px;border-bottom:1px solid var(--color-border)}
.doc-section{display:grid;gap:24px;padding-top:24px;padding-bottom:72px;border-bottom:1px solid var(--doc-rule)}
.doc-section:last-child{border-bottom:0}
.doc-section h2{margin-top:4px}
.doc-section h3{margin-top:22px;font-size:25px}
.doc-section p{color:var(--color-muted)}
.doc-section strong{color:var(--color-ink)}
.doc-section ul,.doc-section ol{display:grid;gap:12px;padding-left:24px;color:var(--color-muted)}
.doc-section li::marker{color:var(--color-accent-deep);font-weight:900}
.doc-section a:not(.btn){color:var(--color-accent-deep);font-weight:750;text-decoration:underline;text-decoration-color:var(--color-accent-line);text-underline-offset:4px}
.doc-section .callout p{margin-top:5px;color:var(--color-ink)}
.doc-kicker{display:flex;align-items:center;gap:10px;color:var(--color-accent-deep);font-family:var(--font-mono);font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.doc-kicker::before{content:"";width:24px;height:2px;background:var(--color-accent)}
.doc-code{max-width:100%;padding:20px;border:1px solid var(--color-dark-line);border-radius:var(--radius-small);background:var(--doc-code-bg);color:var(--doc-code-text);font-size:13px;line-height:1.75;overflow-x:auto;-webkit-overflow-scrolling:touch}
.doc-code code{color:inherit}
.doc-caption{margin-top:-14px;color:var(--doc-code-muted);font-family:var(--font-mono);font-size:12px}
.decision-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.decision-card{display:grid;align-content:start;gap:10px;padding:22px;border:1px solid var(--color-border);border-radius:var(--radius-small);background:var(--doc-aside-bg)}
.decision-card h3{margin:0;font-size:20px}
.decision-card p{font-size:14px}
.checklist{display:grid;gap:0;padding:0!important;border-top:1px solid var(--color-border);list-style:none}
.checklist li{position:relative;padding:16px 16px 16px 38px;border-bottom:1px solid var(--color-border)}
.checklist li::before{content:"✓";position:absolute;left:10px;color:var(--color-accent-deep);font-weight:900}
.doc-next{display:grid;grid-template-columns:1fr auto;align-items:center;gap:24px;margin-top:64px;padding:30px;border:1px solid var(--color-border);border-radius:var(--radius-medium);background:var(--color-surface)}
.doc-next h2{font-size:28px}
.doc-next p{margin-top:8px;color:var(--color-muted)}
.deepdoc-article .data-table th{background:var(--doc-table-head)}
.deepdoc-article .table-scroll{border-radius:var(--radius-small)}
@media (max-width:1000px){
  .deepdoc-hero-inner{grid-template-columns:1fr}
  .deepdoc-facts{grid-template-columns:repeat(3,minmax(0,1fr))}
  .deepdoc-facts p{padding:0 12px 0 0;border-right:1px solid var(--color-border);border-bottom:0}
  .deepdoc-facts p:last-child{border-right:0}
  .deepdoc-layout{grid-template-columns:1fr;gap:42px}
  .deepdoc-toc{position:sticky;top:8px;z-index:34;display:flex;width:100%;overflow-x:auto}
  .deepdoc-toc a{width:auto}
  .deepdoc-article{max-width:none}
}
@media (max-width:768px){
  .deepdoc-hero{padding-top:48px;padding-bottom:44px}
  .deepdoc-facts{grid-template-columns:1fr}
  .deepdoc-facts p{padding:0 0 10px;border-right:0;border-bottom:1px solid var(--color-border)}
  .decision-grid{grid-template-columns:1fr}
  .doc-next{grid-template-columns:1fr}
}
@media (max-width:480px){
  .deepdoc-links .btn{width:100%}
  .deepdoc-toc{margin-inline:0}
  .doc-section h3{font-size:22px}
  .doc-code{padding:16px;font-size:12px}
}