:root {
  --bg: #f7f6f2;
  --ink: #141415;
  --muted: #5c5f66;
  --accent: #0a3d62;
  --accent-2: #c9a227;
  --card: #ffffff;
  --dark: #0f1a24;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
}
.container { width: min(1160px, 92%); margin: 0 auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(247,246,242,0.9);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid #e4e0d5;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  gap: 24px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand .logo {
  width: 40px; height: 40px; border-radius: 12px;
  background: linear-gradient(135deg, #0a3d62, #1e5f74);
}
.brand .name { font-weight: 700; letter-spacing: 1px; }
.brand .sub { font-size: 12px; color: var(--muted); }
.menu { display: flex; gap: 18px; }
.menu a {
  text-decoration: none; color: var(--ink); font-size: 14px; letter-spacing: 0.5px;
}
.menu a:hover { color: var(--accent); }
.cta {
  text-decoration: none; padding: 8px 16px; border-radius: 20px;
  background: var(--accent); color: #fff; font-size: 14px;
}
.hero {
  padding: 80px 0 60px;
  background: radial-gradient(circle at 20% 20%, #fdf7e7 0, #f7f6f2 60%),
              radial-gradient(circle at 80% 10%, #dbe9f3 0, #f7f6f2 60%);
}
.hero-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 32px; }
.hero h1 { font-size: 44px; margin-bottom: 16px; }
.hero p { color: var(--muted); line-height: 1.6; }
.hero-actions { display: flex; gap: 16px; margin: 20px 0 30px; }
.btn {
  display: inline-block; padding: 10px 20px; border-radius: 22px; text-decoration: none;
  border: 1px solid var(--accent); color: var(--accent);
}
.btn.primary { background: var(--accent); color: #fff; }
.btn.outline { border-color: #c9c0a6; color: var(--ink); }
.hero-card {
  background: var(--card); border-radius: 20px; padding: 28px;
  box-shadow: 0 20px 60px rgba(10,61,98,0.12);
}
.hero-card ul { padding-left: 18px; color: var(--muted); }
.hero-metrics { display: flex; gap: 30px; margin-top: 10px; }
.metric { font-size: 22px; font-weight: 700; }
.label { font-size: 12px; color: var(--muted); }
.section { padding: 60px 0; }
.section.dark { background: var(--dark); color: #fff; }
.section-title { font-size: 24px; margin-bottom: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.feature, .card, .solution {
  background: var(--card); padding: 24px; border-radius: 16px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.06);
}
.section.dark .stat { background: rgba(255,255,255,0.08); padding: 24px; border-radius: 16px; }
.stat-value { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.page-hero { padding: 60px 0 30px; background: linear-gradient(120deg, #fdf7e7, #e6f0f6); }
.page-hero h1 { margin-bottom: 10px; }
.site-footer {
  background: #0f1a24; color: #e5e9ef; padding: 50px 0 20px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 30px; }
.footer-title { font-weight: 700; margin-bottom: 12px; }
.site-footer ul { padding-left: 18px; margin: 0; }
.copyright { margin-top: 20px; font-size: 12px; color: #91a0b3; }
@media (max-width: 960px) {
  .hero-grid, .grid-4, .grid-3, .grid-2, .footer-grid { grid-template-columns: 1fr; }
  .menu { display: none; }
}