.page-contact {
  --pc-bg-card: #1A1A1A;
  --pc-bg-map: #0D0D0D;
  --pc-border-card: #37474F;
  --pc-border-active: #E53935;
  --pc-text-muted: #78909C;
  --pc-icon-bg: rgba(229, 57, 53, 0.12);
  --pc-map-grid: rgba(229, 57, 53, 0.08);
  --pc-gap: 24px;
  --pc-radius: 4px;
  background: var(--bg-primary);
}

/* ── 面包屑 ── */
.page-contact .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 24px 0 16px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
}
.page-contact .breadcrumb-link {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.page-contact .breadcrumb-link:hover {
  color: var(--brand-primary);
}
.page-contact .breadcrumb-sep {
  color: var(--border-subtle);
  user-select: none;
}
.page-contact .breadcrumb-current {
  color: var(--text-accent);
  font-weight: 500;
}

/* ── 页面标题 ── */
.page-contact .page-heading {
  text-align: center;
  padding: 16px 0 40px;
}
.page-contact .page-heading-title {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.1;
  letter-spacing: 0.02em;
  margin: 0 0 10px;
  text-transform: uppercase;
}
.page-contact .page-heading-sub {
  font-size: 1.05rem;
  color: var(--text-secondary);
  font-weight: 400;
  margin: 0;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

/* ── 联系方式网格 ── */
.page-contact .contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  margin-bottom: 56px;
}

/* ── 联系卡片 ── */
.page-contact .contact-card {
  background: var(--pc-bg-card);
  border: 1px solid var(--pc-border-card);
  border-radius: var(--pc-radius);
  padding: 32px 24px;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition-smooth), box-shadow var(--transition-smooth);
}
.page-contact .contact-card:hover {
  border-color: var(--pc-border-active);
  box-shadow: 0 0 0 1px rgba(229, 57, 53, 0.15);
}
.page-contact .card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--pc-icon-bg);
  color: var(--brand-primary);
  margin-bottom: 18px;
  border: 1px solid rgba(229, 57, 53, 0.25);
}
.page-contact .card-icon svg {
  width: 28px;
  height: 28px;
}
.page-contact .card-label {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.03em;
  margin: 0 0 14px;
  line-height: 1.2;
}
.page-contact .card-items {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 14px;
}
.page-contact .card-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.page-contact .item-tag {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--pc-text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.page-contact .item-value {
  font-size: 1rem;
  color: var(--text-primary);
  font-weight: 500;
  word-break: break-all;
}
.page-contact .contact-link {
  color: var(--text-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}
.page-contact .contact-link:hover {
  color: var(--brand-primary);
  border-bottom-color: var(--brand-primary);
}
.page-contact .card-note {
  font-size: 0.8rem;
  color: var(--pc-text-muted);
  margin: 0 0 18px;
  line-height: 1.5;
}
.page-contact .card-action {
  align-self: flex-start;
  margin-top: auto;
}

/* ── 地图卡片特殊样式 ── */
.page-contact .card-map {
  padding: 0;
  overflow: hidden;
}
.page-contact .map-frame {
  position: relative;
  width: 100%;
  height: auto;
  background: var(--pc-bg-map);
  overflow: hidden;
}
.page-contact .map-img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 2 / 1;
  opacity: 0.65;
  transition: opacity var(--transition-smooth);
}
.page-contact .card-map:hover .map-img {
  opacity: 0.85;
}
.page-contact .map-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--pc-map-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--pc-map-grid) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  mix-blend-mode: overlay;
}
.page-contact .card-map .card-icon {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 44px;
  height: 44px;
  background: rgba(13, 13, 13, 0.75);
  border-color: rgba(229, 57, 53, 0.4);
  z-index: 2;
  margin: 0;
}
.page-contact .card-map .card-icon svg {
  width: 22px;
  height: 22px;
}
.page-contact .card-map .card-label {
  padding: 20px 24px 0;
}
.page-contact .address-line {
  padding: 0 24px;
  font-size: 1rem;
  color: var(--text-primary);
  font-weight: 500;
  margin: 4px 0 0;
}
.page-contact .address-note {
  padding: 0 24px 24px;
  margin: 4px 0 0;
}

/* ── 在线反馈 ── */
.page-contact .feedback-section {
  margin-bottom: 56px;
}
.page-contact .feedback-inner {
  background: var(--pc-bg-card);
  border: 1px solid var(--pc-border-card);
  border-radius: var(--pc-radius);
  padding: 36px 28px;
}
.page-contact .feedback-title {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.03em;
  margin: 0 0 6px;
}
.page-contact .feedback-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0 0 28px;
  line-height: 1.6;
}
.page-contact .feedback-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.page-contact .form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.page-contact .form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.page-contact .form-group-full {
  width: 100%;
}
.page-contact .form-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.03em;
}
.page-contact .form-input,
.page-contact .form-textarea {
  background: var(--bg-primary);
  border: 1px solid var(--pc-border-card);
  border-radius: var(--pc-radius);
  padding: 12px 14px;
  font-size: 0.95rem;
  font-family: var(--font-body);
  color: var(--text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}
.page-contact .form-input::placeholder,
.page-contact .form-textarea::placeholder {
  color: var(--pc-text-muted);
}
.page-contact .form-input:focus,
.page-contact .form-textarea:focus {
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 2px rgba(229, 57, 53, 0.15);
}
.page-contact .form-textarea {
  resize: vertical;
  min-height: 100px;
}
.page-contact .form-actions {
  display: flex;
  justify-content: flex-end;
  padding-top: 4px;
}
.page-contact .feedback-success {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  background: rgba(229, 57, 53, 0.08);
  border: 1px solid rgba(229, 57, 53, 0.25);
  border-radius: var(--pc-radius);
  font-size: 0.9rem;
  color: var(--text-primary);
  margin-top: 8px;
}
.page-contact .feedback-success[hidden] {
  display: none;
}

/* ── 信任声明 ── */
.page-contact .trust-statement {
  text-align: center;
  padding: 32px 0 48px;
  border-top: 1px solid var(--pc-border-card);
}
.page-contact .trust-text {
  font-size: 0.8rem;
  color: var(--pc-text-muted);
  line-height: 1.7;
  max-width: 640px;
  margin: 0 auto 14px;
}
.page-contact .trust-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}
.page-contact .trust-link {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}
.page-contact .trust-link:hover {
  color: var(--brand-primary);
  border-bottom-color: var(--brand-primary);
}
.page-contact .trust-sep {
  color: var(--pc-border-card);
  font-size: 0.85rem;
  user-select: none;
}

/* ── 响应式 ── */
@media (min-width: 768px) {
  .page-contact .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-contact .card-map {
    grid-column: 1 / -1;
  }
  .page-contact .form-row {
    grid-template-columns: 1fr 1fr;
  }
  .page-contact .page-heading-title {
    font-size: 3.2rem;
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-grid {
    grid-template-columns: 1fr 1.2fr 1fr;
    gap: 28px;
  }
  .page-contact .card-map {
    grid-column: auto;
  }
  .page-contact .page-heading {
    padding: 20px 0 52px;
  }
  .page-contact .page-heading-title {
    font-size: 3.8rem;
  }
  .page-contact .page-heading-sub {
    font-size: 1.1rem;
  }
  .page-contact .feedback-inner {
    padding: 44px 40px;
  }
  .page-contact .contact-card {
    padding: 36px 28px;
  }
  .page-contact .card-map {
    padding: 0;
  }
  .page-contact .card-map .card-label {
    padding: 24px 28px 0;
  }
  .page-contact .address-line {
    padding: 0 28px;
  }
  .page-contact .address-note {
    padding: 0 28px 28px;
  }
}

/* ── 确保窄屏不溢出 ── */
@media (max-width: 374px) {
  .page-contact .contact-card {
    padding: 24px 16px;
  }
  .page-contact .card-icon {
    width: 44px;
    height: 44px;
  }
  .page-contact .card-icon svg {
    width: 22px;
    height: 22px;
  }
  .page-contact .page-heading-title {
    font-size: 2rem;
  }
  .page-contact .feedback-inner {
    padding: 24px 16px;
  }
}