:root {
  --primary: #1a5fb4;
  --primary-dark: #0d3d7a;
  --accent: #3584e4;
  --bg: #f4f7fb;
  --text: #1e293b;
  --muted: #64748b;
  --card: #ffffff;
  --border: #e2e8f0;
  --radius: 12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.site-header {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(0,0,0,.12);
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  flex-wrap: wrap;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.25rem;
}

.brand:hover { text-decoration: none; opacity: .95; }

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255,255,255,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.nav { display: flex; gap: 8px; flex-wrap: wrap; }

.nav a {
  color: rgba(255,255,255,.92);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: .95rem;
}

.nav a:hover, .nav a.active {
  background: rgba(255,255,255,.18);
  text-decoration: none;
  color: #fff;
}

.hero {
  background: linear-gradient(160deg, #0d3d7a 0%, #1a5fb4 45%, #3584e4 100%);
  color: #fff;
  padding: 56px 24px 64px;
}

.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 16px;
  line-height: 1.3;
}

.hero .tagline {
  font-size: 1.1rem;
  opacity: .92;
  max-width: 640px;
  margin-bottom: 28px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.badge {
  background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.25);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: .85rem;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: .95rem;
  margin-top: 8px;
  margin-right: 10px;
}

.btn-primary {
  background: #fff;
  color: var(--primary-dark);
}

.btn-outline {
  border: 2px solid rgba(255,255,255,.7);
  color: #fff;
}

.btn-outline:hover { background: rgba(255,255,255,.12); text-decoration: none; }

.btn-primary:hover { text-decoration: none; opacity: .92; }

main { max-width: 1100px; margin: 0 auto; padding: 40px 24px 56px; }

.section-title {
  font-size: 1.5rem;
  margin-bottom: 8px;
  color: var(--primary-dark);
}

.section-desc {
  color: var(--muted);
  margin-bottom: 28px;
  max-width: 720px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
  margin-bottom: 48px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 4px 16px rgba(15,23,42,.04);
}

.card h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  color: var(--primary-dark);
}

.card p { color: var(--muted); font-size: .95rem; }

.info-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  margin-bottom: 32px;
}

.info-table th,
.info-table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: .95rem;
}

.info-table th {
  width: 28%;
  background: #f8fafc;
  color: var(--primary-dark);
  font-weight: 600;
}

.info-table tr:last-child td,
.info-table tr:last-child th { border-bottom: none; }

.content-page {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 40px;
  box-shadow: 0 4px 20px rgba(15,23,42,.05);
}

.content-page h1 {
  font-size: 1.75rem;
  margin-bottom: 12px;
  color: var(--primary-dark);
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border);
}

.content-page h2 {
  font-size: 1.15rem;
  margin: 28px 0 12px;
  color: var(--primary-dark);
}

.content-page p, .content-page li {
  font-size: .95rem;
  margin-bottom: 12px;
}

.content-page ul { padding-left: 22px; margin-bottom: 16px; }

.meta { color: var(--muted); font-size: .9rem; margin-bottom: 20px; }

.site-footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 40px 24px;
  font-size: .9rem;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 28px;
}

.footer-inner h4 {
  color: #e2e8f0;
  margin-bottom: 12px;
  font-size: 1rem;
}

.footer-inner a { color: #93c5fd; }

.footer-bottom {
  max-width: 1100px;
  margin: 28px auto 0;
  padding-top: 20px;
  border-top: 1px solid #334155;
  text-align: center;
  font-size: .85rem;
}

@media (max-width: 640px) {
  .content-page { padding: 24px 20px; }
  .info-table th, .info-table td { display: block; width: 100%; }
  .info-table th { border-bottom: none; padding-bottom: 4px; }
}