:root {
  --color-primary: #0a66c2;
  --color-primary-dark: #004182;
  --color-primary-light: #f0f6ff;
  --color-primary-mid: #cce0ff;
  --color-text: #191919;
  --color-text-muted: #555;
  --color-text-faint: #888;
  --color-bg: #f3f2ef;
  --color-surface: #ffffff;
  --color-border: #dce6f1;
  --color-divider: #edf3f8;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 12px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font-sans); background: var(--color-bg); color: var(--color-text); line-height: 1.6; min-height: 100vh; }
a { color: inherit; }
.site-header { background: var(--color-surface); border-bottom: 1px solid var(--color-border); height: 56px; padding: 0 40px; display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 20; }
.logo { color: var(--color-primary); font-weight: 700; text-decoration: none; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.header-note { color: var(--color-text-faint); font-size: .88rem; }
.header-link { font-size: .88rem; color: var(--color-primary); text-decoration: none; padding: 7px 12px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-primary-light); }
.site-main { max-width: 1240px; margin: 0 auto; padding: 28px 20px 96px; }
.wiki-shell { display: grid; grid-template-columns: 240px minmax(0, 1fr) 240px; gap: 18px; align-items: start; }
.panel { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); box-shadow: 0 2px 6px rgba(0,0,0,.04); }
.sidebar { position: sticky; top: 76px; padding: 18px; }
.sidebar h2, .toc h2, .article h1, .card h2 { font-size: .82rem; letter-spacing: 2px; text-transform: uppercase; color: var(--color-primary); margin-bottom: 14px; }
.sidebar ul, .toc ul { list-style: none; display: grid; gap: 8px; }
.sidebar a, .toc a { display: block; text-decoration: none; color: var(--color-text); padding: 9px 10px; border-radius: var(--radius-sm); border: 1px solid transparent; }
.sidebar a:hover, .toc a:hover { background: var(--color-primary-light); border-color: var(--color-border); }
.sidebar .active { background: var(--color-primary-light); border-color: var(--color-border); color: var(--color-primary); font-weight: 600; }
.article { padding: 28px 30px; }
.breadcrumbs { color: var(--color-text-faint); font-size: .86rem; margin-bottom: 14px; }
.article h1 { font-size: 1.35rem; margin-bottom: 8px; }
.article .lead { color: var(--color-text-muted); margin-bottom: 22px; }
.article section { border-top: 1px solid var(--color-divider); padding-top: 18px; margin-top: 18px; }
.article h3 { font-size: 1rem; margin-bottom: 8px; }
.article p, .article li { color: #444; }
.article ul { padding-left: 20px; }
.kv { display: grid; gap: 10px; }
.kv div { padding: 12px 14px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: #fff; }
.kv strong { display: block; margin-bottom: 2px; }
.toc { position: sticky; top: 76px; padding: 18px; }
.toc small { color: var(--color-text-faint); display: block; margin-bottom: 12px; }
.hero { background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%); color: #fff; border-radius: var(--radius-lg); padding: 28px 30px; margin-bottom: 18px; }
.hero .eyebrow { font-size: .78rem; letter-spacing: 2px; text-transform: uppercase; color: #cce4ff; margin-bottom: 8px; }
.hero h1 { font-size: clamp(1.6rem, 4vw, 2.2rem); margin-bottom: 6px; }
.hero p { color: #d8ebff; }
.card { background: var(--color-surface); border: 1px solid var(--color-border); border-top: 3px solid var(--color-primary); border-radius: var(--radius-md); padding: 22px; box-shadow: 0 2px 6px rgba(0,0,0,.04); }
.sitemap { list-style: none; display: grid; gap: 10px; }
.sitemap a { display: flex; justify-content: space-between; gap: 16px; padding: 14px 16px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); text-decoration: none; color: var(--color-text); background: #fff; }
.sitemap a:hover { border-color: var(--color-primary); background: var(--color-primary-light); }
.sitemap .label { font-weight: 600; }
.sitemap .path { color: var(--color-text-faint); }
.note { margin-top: 16px; color: var(--color-text-muted); font-size: .94rem; }
@media (max-width: 980px) { .wiki-shell { grid-template-columns: 1fr; } .sidebar, .toc { position: static; } }
@media (max-width: 600px) { .site-header { padding: 0 16px; } .site-main { padding: 18px 12px 80px; } .article { padding: 20px; } .hero { padding: 22px 20px; } .header-actions { gap: 8px; } .header-link { padding: 6px 10px; } .sitemap a { flex-direction: column; gap: 4px; } }