:root{--bg:#0b0f14;--paper:#ffffff;--ink:#0f172a;--muted:#475569;--line:#e2e8f0;--accent:#0ea5e9;--accent2:#22c55e;}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:#f6f7fb;}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1100px;margin:0 auto;padding:0 18px}
.site-header{background:linear-gradient(180deg,#0b1220 0%,#111827 100%);color:#fff;}
.site-header .bar{display:flex;align-items:center;justify-content:space-between;padding:18px 0;gap:18px}
.brand{display:flex;align-items:center;gap:14px}
.brand img{height:46px;width:auto;filter:contrast(1.05) saturate(1.05)}
.brand .name{font-size:20px;font-weight:700;letter-spacing:.2px}
.brand .tag{font-size:13px;color:rgba(255,255,255,.8)}
.header-hero{position:relative;overflow:hidden;border-top:1px solid rgba(255,255,255,.10)}
.header-hero img{width:100%;max-height:240px;object-fit:cover;display:block;opacity:.92}
.header-hero .overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(2,6,23,.85),rgba(2,6,23,.15));}
.header-hero .copy{position:absolute;inset:0;display:flex;align-items:flex-end}
.header-hero .copy .inner{padding:22px 0}
.header-hero h1{margin:0;font-size:26px;line-height:1.15}
.header-hero p{margin:8px 0 0;color:rgba(255,255,255,.82);max-width:60ch}
.layout{display:grid;grid-template-columns:260px 1fr;gap:22px;align-items:start;padding:22px 0 40px}
.nav{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;position:sticky;top:16px}
.nav .head{padding:14px 14px 10px;font-weight:700;border-bottom:1px solid var(--line)}
.nav a{display:block;padding:11px 14px;border-left:3px solid transparent;color:var(--ink)}
.nav a:hover{background:#f8fafc}
.nav a.active{border-left-color:var(--accent);background:#f0f9ff}
.main{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 18px 22px}
.main h2,.main h3{margin-top:20px}
.main p{line-height:1.6}
.main table{width:100%;border-collapse:collapse;margin:14px 0;overflow:auto;display:block}
.main th,.main td{border:1px solid var(--line);padding:8px 10px;vertical-align:top}
.main img{max-width:100%;height:auto;border-radius:10px}
.kicker{color:var(--muted);font-size:13px}
.callouts{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:16px}
.card{border:1px solid var(--line);border-radius:12px;padding:12px}
.card .t{font-weight:700;margin:0 0 6px}
.card p{margin:0;color:var(--muted);font-size:14px}
.footer{border-top:1px solid var(--line);padding:22px 0 34px;color:var(--muted);font-size:13px}
.footer .row{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.badge{display:inline-flex;gap:8px;align-items:center;padding:6px 10px;border-radius:999px;background:#0b1220;color:#fff;font-size:12px}

@media (max-width:900px){
  .layout{grid-template-columns:1fr}
  .nav{position:relative;top:auto}
  .callouts{grid-template-columns:1fr}
}