/* SEO 静态落地页统一样式 */
* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  color: #1E293B;
  background: #F8FAFC;
  -webkit-font-smoothing: antialiased;
  line-height: 1.7;
}
a { color: #4F46E5; text-decoration: none; }
a:hover { text-decoration: underline; }
.seo-header {
  background: #FFFFFF;
  border-bottom: 1px solid #E2E8F0;
  padding: 14px 0;
}
.seo-container {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 24px;
}
.seo-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: #1E293B;
}
.seo-brand-logo {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, #4F46E5, #7C3AED);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}
.seo-nav {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
  font-size: 13px;
}
.seo-nav a { color: #64748B; }
.seo-nav a:hover { color: #4F46E5; }
.seo-main {
  padding: 32px 0 56px;
}
.seo-hero {
  background: linear-gradient(135deg, #EEF2FF 0%, #FAF5FF 100%);
  border-radius: 16px;
  padding: 40px 32px;
  margin-bottom: 32px;
}
.seo-hero h1 {
  font-size: 30px;
  margin: 0 0 12px;
  color: #1E293B;
  line-height: 1.3;
}
.seo-hero p {
  font-size: 16px;
  color: #475569;
  margin: 0 0 20px;
}
.seo-cta {
  display: inline-block;
  padding: 12px 24px;
  background: #4F46E5;
  color: #fff !important;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
}
.seo-cta:hover {
  background: #4338CA;
  text-decoration: none;
}
.seo-cta.outline {
  background: #fff;
  color: #4F46E5 !important;
  border: 1px solid #C7D2FE;
  margin-left: 8px;
}
.seo-cta.outline:hover { background: #EEF2FF; }
.seo-section {
  background: #fff;
  border: 1px solid #E2E8F0;
  border-radius: 14px;
  padding: 28px 32px;
  margin-bottom: 24px;
}
.seo-section h2 {
  font-size: 22px;
  margin: 0 0 16px;
  color: #1E293B;
}
.seo-section h3 {
  font-size: 17px;
  margin: 20px 0 8px;
  color: #1E293B;
}
.seo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 12px;
}
.seo-card {
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  border-radius: 12px;
  padding: 18px 20px;
}
.seo-card h4 {
  font-size: 15px;
  margin: 0 0 6px;
  color: #1E293B;
}
.seo-card p {
  margin: 0;
  font-size: 14px;
  color: #64748B;
}
.seo-faq dt {
  font-weight: 600;
  margin-top: 14px;
  color: #1E293B;
}
.seo-faq dd {
  margin: 4px 0 0;
  color: #475569;
}
.seo-related {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-top: 8px;
}
.seo-related a {
  padding: 6px 12px;
  background: #EEF2FF;
  border-radius: 999px;
  font-size: 13px;
}
.seo-footer {
  border-top: 1px solid #E2E8F0;
  padding: 24px;
  text-align: center;
  font-size: 13px;
  color: #94A3B8;
  background: #fff;
}
.seo-footer a { color: #94A3B8; }
.seo-contact-block {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  align-items: flex-start;
}
.seo-contact-qr {
  width: 220px;
  height: 220px;
  border: 1px solid #E2E8F0;
  border-radius: 12px;
  background: #F8FAFC;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: #94A3B8;
  text-align: center;
}
.seo-contact-qr img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 12px;
}
.seo-contact-info {
  flex: 1;
  min-width: 240px;
}
.seo-contact-info dl { margin: 0; }
.seo-contact-info dt {
  font-size: 13px;
  color: #94A3B8;
  margin-top: 12px;
}
.seo-contact-info dd {
  margin: 4px 0 0;
  font-size: 16px;
  color: #1E293B;
  font-weight: 600;
}
@media (max-width: 600px) {
  .seo-hero { padding: 28px 20px; }
  .seo-hero h1 { font-size: 24px; }
  .seo-section { padding: 22px 20px; }
}