/* ========== 联系与合作 / 关于我们 ========== */
.page-contact,
.page-about {
  background: var(--bg-page);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page-contact .header-center,
.page-about .header-center {
  position: static;
  transform: none;
  flex: 1;
  pointer-events: auto;
}

.page-contact .header-search,
.page-about .header-search {
  display: none;
}

.contact-main {
  flex: 1;
  padding: calc(var(--header-height) + 32px) 20px 48px;
}

.contact-wrap {
  max-width: 720px;
  margin: 0 auto;
}

.contact-hero {
  margin-bottom: 32px;
}

.contact-eyebrow {
  font-size: var(--font-sm);
  color: var(--text-muted);
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

.contact-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 12px;
}

.contact-lead {
  font-size: var(--font-md);
  color: var(--text-secondary);
  line-height: 1.7;
}

.contact-section {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px 22px;
  margin-bottom: 16px;
}

.contact-section h2 {
  font-size: var(--font-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.contact-section > p {
  font-size: var(--font-md);
  color: var(--text-secondary);
  line-height: 1.75;
  margin: 0 0 12px;
}

.contact-section > p:last-of-type {
  margin-bottom: 16px;
}

.contact-dl {
  margin: 0;
}

.contact-row {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid rgba(0, 0, 0, 0.04);
}

.contact-row:first-child {
  border-top: none;
  padding-top: 0;
}

.contact-row dt {
  font-size: var(--font-md);
  color: var(--text-muted);
  font-weight: 500;
}

.contact-row dd {
  margin: 0;
  font-size: var(--font-md);
  color: var(--text-primary);
  line-height: 1.6;
}

.contact-row a {
  color: var(--primary);
  text-decoration: none;
}

.contact-row a:hover {
  text-decoration: underline;
}

.contact-back {
  margin-top: 8px;
  font-size: var(--font-md);
}

.contact-back a {
  color: var(--text-secondary);
  text-decoration: none;
}

.contact-back a:hover {
  color: var(--primary);
}

.contact-page-footer {
  text-align: center;
  padding: 20px 16px 28px;
  color: var(--text-muted);
  font-size: var(--font-sm);
  line-height: 1.8;
}

@media (max-width: 640px) {
  .contact-title {
    font-size: 24px;
  }

  .contact-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .contact-section {
    padding: 20px 16px;
  }
}