* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
  color: #1f2937;
  background: #ffffff;
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #e5e7eb;
}
.nav-wrap { height: 76px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 14px; }
.brand-mark {
  width: 46px; height: 46px; border-radius: 14px;
  display: grid; place-items: center;
  color: #fff; font-size: 24px; font-weight: 800;
  background: linear-gradient(135deg, #123c69, #2563eb);
  box-shadow: 0 10px 30px rgba(37,99,235,.22);
}
.brand h1 { margin: 0; font-size: 18px; line-height: 1.2; }
.brand p { margin: 3px 0 0; font-size: 12px; color: #6b7280; letter-spacing: 1px; }
.nav { display: flex; gap: 26px; font-size: 15px; color: #374151; }
.nav a:hover { color: #1d4ed8; }
.menu-btn { display: none; border: 0; background: transparent; font-size: 24px; }
.hero {
  padding: 96px 0;
  background: radial-gradient(circle at top right, #dbeafe, transparent 32%), linear-gradient(135deg, #f8fafc 0%, #eff6ff 100%);
}
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.badge {
  display: inline-block;
  padding: 7px 14px;
  border-radius: 999px;
  color: #1d4ed8;
  background: #dbeafe;
  font-weight: 700;
  font-size: 14px;
}
.hero h2 { margin: 20px 0 16px; font-size: clamp(34px, 6vw, 56px); line-height: 1.16; color: #0f172a; }
.lead { max-width: 650px; font-size: 19px; color: #4b5563; }
.hero-actions { margin-top: 32px; display: flex; gap: 14px; flex-wrap: wrap; }
.btn { padding: 13px 22px; border-radius: 12px; font-weight: 700; transition: .2s ease; }
.btn.primary { color: #fff; background: #1d4ed8; box-shadow: 0 12px 28px rgba(29,78,216,.25); }
.btn.primary:hover { transform: translateY(-2px); }
.btn.ghost { color: #1d4ed8; background: #fff; border: 1px solid #bfdbfe; }
.verify-card {
  background: #fff;
  border: 1px solid #dbeafe;
  border-radius: 24px;
  padding: 32px;
  box-shadow: 0 24px 60px rgba(15,23,42,.08);
}
.verify-card h3 { margin: 0 0 18px; font-size: 24px; color: #0f172a; }
dl { margin: 0; }
dt { margin-top: 16px; color: #64748b; font-size: 14px; }
dd { margin: 4px 0 0; font-weight: 800; color: #111827; word-break: break-word; }
.section { padding: 78px 0; }
.bg-soft { background: #f8fafc; }
.section-title { margin-bottom: 26px; }
.section-title span { color: #2563eb; font-weight: 800; letter-spacing: 1.5px; text-transform: uppercase; font-size: 13px; }
.section-title h2 { margin: 6px 0 0; color: #0f172a; font-size: 34px; }
.content-card, .verify-box {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 20px;
  padding: 30px;
  box-shadow: 0 16px 40px rgba(15,23,42,.05);
}
.content-card p, .verify-box p { margin: 0 0 16px; }
.content-card p:last-child, .verify-box p:last-child { margin-bottom: 0; }
.business-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.business-item {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 20px;
  padding: 28px;
  min-height: 190px;
  box-shadow: 0 14px 34px rgba(15,23,42,.05);
}
.business-item h3 { margin: 0 0 12px; color: #0f172a; }
.business-item p { margin: 0; color: #4b5563; }
.bg-dark { color: #fff; background: linear-gradient(135deg, #0f172a, #1e3a8a); }
.section-title.light h2, .section-title.light span { color: #fff; }
.contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 38px; align-items: start; }
.contact-intro { color: #dbeafe; }
.contact-card {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 20px;
  padding: 28px;
}
.contact-card p { margin: 0 0 12px; }
.site-footer { background: #0b1220; color: #cbd5e1; padding: 24px 0; }
.footer-wrap { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; font-size: 14px; }
.footer-wrap p { margin: 0; }
.footer-wrap a { color: #dbeafe; }
@media (max-width: 860px) {
  .nav { display: none; position: absolute; left: 20px; right: 20px; top: 76px; padding: 18px; flex-direction: column; background: #fff; border: 1px solid #e5e7eb; border-radius: 16px; box-shadow: 0 18px 40px rgba(15,23,42,.12); }
  .nav.open { display: flex; }
  .menu-btn { display: block; }
  .hero-grid, .contact-grid { grid-template-columns: 1fr; }
  .business-grid { grid-template-columns: 1fr; }
  .hero { padding: 68px 0; }
  .section { padding: 58px 0; }
}