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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: #1f2937;
  line-height: 1.7;
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

a { color: #1a3a5c; text-decoration: none; }
a:hover { text-decoration: underline; }

header {
  background: #1a3a5c;
  color: #fff;
  padding: 1rem 0;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

nav {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: #fff;
}
.logo:hover { text-decoration: none; opacity: 0.85; }

.nav-links a {
  color: #fff;
  margin-left: 2rem;
  font-size: 0.95rem;
  opacity: 0.85;
  transition: opacity 0.2s;
}
.nav-links a:hover { opacity: 1; text-decoration: none; }

.hero {
  background: linear-gradient(135deg, #1a3a5c 0%, #2c5282 100%);
  color: #fff;
  padding: 5rem 1.5rem;
  text-align: center;
}
.hero h1 {
  font-size: 2.2rem;
  margin-bottom: 1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.hero .subtitle {
  font-size: 1.1rem;
  opacity: 0.9;
  max-width: 640px;
  margin: 0 auto;
}

.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}
.section-alt {
  background: #f8fafc;
  max-width: none;
  margin: 0;
  padding: 4rem 0;
}
.section-alt > .section-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}
.section h2,
.section-alt h2 {
  font-size: 1.75rem;
  color: #1a3a5c;
  margin-bottom: 1.5rem;
  text-align: center;
  font-weight: 600;
}
.section p,
.section-alt p {
  color: #475569;
  max-width: 800px;
  margin: 0 auto 1rem;
  text-align: center;
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}
.business-item {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 2rem 1.75rem;
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
}
.business-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(26, 58, 92, 0.08);
}
.business-item h3 {
  color: #1a3a5c;
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
  font-weight: 600;
}
.business-item p {
  color: #6b7280;
  font-size: 0.95rem;
  margin: 0;
}

.contact-list {
  max-width: 520px;
  margin: 2.5rem auto 0;
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 1rem 1.5rem;
}
.contact-list dt {
  color: #1a3a5c;
  font-weight: 600;
  text-align: right;
}
.contact-list dd {
  color: #475569;
}

footer {
  background: #0f2942;
  color: #cbd5e1;
  text-align: center;
  padding: 2.5rem 1.5rem;
  font-size: 0.875rem;
  line-height: 1.8;
}
footer p { margin: 0.4rem 0; }
footer a {
  color: #cbd5e1;
  margin: 0 0.5rem;
}
footer a:hover { color: #fff; }
footer .footer-sep { color: #475569; }

.legal-page {
  max-width: 800px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}
.legal-page h1 {
  font-size: 1.75rem;
  color: #1a3a5c;
  margin-bottom: 0.5rem;
  font-weight: 600;
}
.legal-page .updated {
  color: #94a3b8;
  font-size: 0.875rem;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid #e2e8f0;
}
.legal-page h2 {
  font-size: 1.2rem;
  color: #1a3a5c;
  margin: 2rem 0 0.75rem;
  font-weight: 600;
}
.legal-page p,
.legal-page li {
  color: #475569;
  margin-bottom: 0.75rem;
}
.legal-page ul,
.legal-page ol {
  margin-left: 1.5rem;
  margin-bottom: 1rem;
}
.legal-page .back-link {
  display: inline-block;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid #e2e8f0;
  width: 100%;
  color: #1a3a5c;
}

@media (max-width: 640px) {
  .nav-links a { margin-left: 1rem; font-size: 0.875rem; }
  .hero h1 { font-size: 1.75rem; }
  .hero .subtitle { font-size: 1rem; }
  .hero { padding: 3rem 1rem; }
  .section, .section-alt { padding: 2.5rem 1rem; }
  .section h2, .section-alt h2 { font-size: 1.4rem; }
  .contact-list { grid-template-columns: 70px 1fr; gap: 0.75rem 1rem; }
  .legal-page { padding: 2rem 1rem; }
}