/* 政务蓝金 — 严肃、权威、可信 */
:root{
  --primary:#0b3d91; --accent:#c8a35a; --bg:#f5f3ec; --surface:#ffffff; --surface-2:#ece7da;
  --border:#ddd3bf; --muted:#5d5642; --text:#1d2230;
  --font-head:"Noto Serif SC","Songti SC",serif;
}
[data-theme="dark"]{
  --bg:#10141d; --surface:#171c28; --surface-2:#1d2330; --border:#2c3445; --muted:#a7afc0; --text:#eef2f8;
  --primary:#5b8def; --accent:#d8b56a;
}
.brand .logo{border-radius:8px}
.hero{background:
  radial-gradient(900px 400px at 80% -10%,color-mix(in srgb,var(--accent) 22%,transparent),transparent),
  linear-gradient(180deg,color-mix(in srgb,var(--primary) 8%,var(--bg)),var(--bg))}
.hero h1{letter-spacing:1px}
.sec-head h2{font-weight:800}
.card,.stat,.step,.post-card,.side-card,.table,.auth-wrap{border-radius:10px}
.step{border-left:4px solid var(--accent)}
.card .ic{border-radius:9px}
.tag{font-family:var(--font-head)}
.btn-primary{border-radius:8px}