.page-contact {
  --contact-hero-bg: var(--color-primary, #0A2647);
  --contact-card-border: var(--color-accent, #FF6B35);
  --contact-grid-gap: 2rem;
  --contact-icon-size: 2.25rem;
  --contact-font-mono: 500 0.875rem/1.5 'JetBrains Mono', monospace;
}

/* ===== 顶部横幅 ===== */
.page-contact .contact-hero {
  position: relative;
  background: var(--contact-hero-bg);
  padding: 2.5rem 0 2rem;
  overflow: hidden;
  color: var(--color-text-on-primary, #FFFFFF);
}

.page-contact .contact-hero .container {
  position: relative;
  z-index: 2;
}

.page-contact .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  line-height: 1.4;
  margin-bottom: 1.25rem;
  opacity: 0.75;
  flex-wrap: wrap;
}

.page-contact .breadcrumb a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

.page-contact .breadcrumb a:hover {
  border-color: currentColor;
}

.page-contact .breadcrumb .sep {
  user-select: none;
  opacity: 0.5;
}

.page-contact .breadcrumb .current {
  font-weight: 600;
}

.page-contact .hero-layout {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.page-contact .hero-text {
  flex: 1 1 auto;
}

.page-contact .hero-title {
  font: var(--font-heading, 800 2.25rem/1.1 'Inter', sans-serif);
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}

.page-contact .hero-desc {
  font: var(--font-body, 400 1rem/1.6 'Inter', sans-serif);
  font-size: 1.0625rem;
  max-width: 36em;
  opacity: 0.85;
  margin: 0;
}

.page-contact .hero-image-wrap {
  flex: 0 0 auto;
  width: 100%;
  max-width: 28rem;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
}

.page-contact .hero-img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 800 / 300;
}

/* ===== 主体两列区域 ===== */
.page-contact .contact-main {
  padding: 2.5rem 0;
  background: var(--color-bg, #F5F7FA);
  background-image:
    linear-gradient(rgba(10,38,71,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10,38,71,0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  background-position: center center;
}

.page-contact .contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-grid-gap);
  align-items: start;
}

/* ===== 卡片公用 ===== */
.page-contact .card {
  background: var(--color-card, #FFFFFF);
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(10,38,71,0.08);
  padding: 1.75rem 1.5rem;
  position: relative;
  transition: box-shadow 0.25s;
}

.page-contact .card:hover {
  box-shadow: 0 6px 20px rgba(10,38,71,0.12);
}

.page-contact .card-accent-line {
  display: block;
  position: absolute;
  top: 0;
  left: 1.5rem;
  right: 1.5rem;
  height: 3px;
  background: var(--contact-card-border);
  border-radius: 0 0 2px 2px;
}

.page-contact .cooperation-line {
  background: var(--color-primary-light, #1E3A5F);
}

.page-contact .card-heading {
  font: var(--font-subheading, 800 1.75rem/1.2 'Inter', sans-serif);
  font-size: 1.375rem;
  margin: 0 0 1.25rem;
  color: var(--color-text, #0A2647);
}

/* ===== 联系方式卡片 ===== */
.page-contact .contact-card {
  border-left: 3px solid var(--contact-card-border);
}

.page-contact .contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.page-contact .contact-item {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.75rem 0.875rem;
  border-radius: 4px;
  background: var(--color-bg, #F5F7FA);
  cursor: default;
  transition: background 0.2s, transform 0.2s;
  position: relative;
}

.page-contact .contact-item[data-click-copy] {
  cursor: pointer;
}

.page-contact .contact-item[data-click-copy]:hover {
  background: #eef1f5;
}

.page-contact .contact-item[data-click-copy]:hover .contact-icon {
  transform: scale(1.12);
}

.page-contact .contact-item--address {
  cursor: default;
}

.page-contact .contact-item--address:hover {
  background: var(--color-bg, #F5F7FA);
}

.page-contact .contact-icon {
  flex: 0 0 var(--contact-icon-size);
  width: var(--contact-icon-size);
  height: var(--contact-icon-size);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary, #0A2647);
  color: var(--color-text-on-primary, #FFFFFF);
  border-radius: 4px;
  transition: transform 0.25s;
  will-change: transform;
}

.page-contact .contact-icon svg {
  width: 1.125rem;
  height: 1.125rem;
  display: block;
}

.page-contact .contact-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
  flex: 1 1 auto;
}

.page-contact .contact-label {
  font: var(--font-body, 400 0.875rem/1.4 'Inter', sans-serif);
  font-size: 0.75rem;
  color: var(--color-text-secondary, #4A5568);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.page-contact .contact-value {
  font: var(--contact-font-mono);
  font-size: 0.9375rem;
  word-break: break-all;
  color: var(--color-text, #0A2647);
  font-weight: 500;
}

.page-contact .copy-hint {
  font-size: 0.6875rem;
  padding: 0.25rem 0.5rem;
  border-radius: 3px;
  background: var(--color-accent, #FF6B35);
  color: var(--color-text-on-accent, #FFFFFF);
  opacity: 0;
  transition: opacity 0.2s;
  white-space: nowrap;
  flex-shrink: 0;
}

.page-contact .contact-item[data-click-copy]:hover .copy-hint {
  opacity: 1;
}

.page-contact .contact-item[data-click-copy]:active .copy-hint {
  opacity: 1;
  background: var(--color-accent-dark, #CC552A);
}

.page-contact .contact-note {
  margin: 1.25rem 0 0;
  font: var(--font-body, 400 0.8125rem/1.5 'Inter', sans-serif);
  color: var(--color-text-secondary, #4A5568);
  padding: 0.75rem 0.875rem;
  background: rgba(255,107,53,0.06);
  border-left: 2px solid var(--color-accent-light, #FF8C5A);
  border-radius: 0 4px 4px 0;
}

/* ===== 合作卡片 ===== */
.page-contact .cooperation-card {
  border-left: 3px solid var(--color-primary-light, #1E3A5F);
}

.page-contact .cooperation-body {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.page-contact .cooperation-text {
  font: var(--font-body, 400 1rem/1.6 'Inter', sans-serif);
  margin: 0;
  color: var(--color-text, #0A2647);
}

.page-contact .cooperation-img-wrap {
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(10,38,71,0.06);
}

.page-contact .cooperation-img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 400 / 300;
  object-fit: cover;
  transition: transform 0.35s;
}

.page-contact .cooperation-img-wrap:hover .cooperation-img {
  transform: scale(1.03);
}

.page-contact .cooperation-actions {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  align-items: flex-start;
}

.page-contact .cooperation-hint {
  font: var(--font-body, 400 0.8125rem/1.4 'Inter', sans-serif);
  color: var(--color-text-secondary, #4A5568);
}

/* ===== 常见咨询 ===== */
.page-contact .faq-section {
  padding: 2.5rem 0 3.5rem;
  background: var(--color-card, #FFFFFF);
}

.page-contact .section-heading {
  font: var(--font-subheading, 800 1.75rem/1.2 'Inter', sans-serif);
  font-size: 1.375rem;
  margin: 0 0 0.5rem;
  color: var(--color-text, #0A2647);
}

.page-contact .section-desc {
  font: var(--font-body, 400 1rem/1.5 'Inter', sans-serif);
  margin: 0 0 1.75rem;
  color: var(--color-text-secondary, #4A5568);
  max-width: 34em;
}

.page-contact .faq-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.page-contact .faq-card {
  padding: 1.5rem 1.25rem;
  border-left: 3px solid var(--color-border, #E2E8F0);
  transition: border-color 0.25s, box-shadow 0.25s;
}

.page-contact .faq-card:hover {
  border-left-color: var(--color-accent, #FF6B35);
  box-shadow: 0 6px 20px rgba(10,38,71,0.1);
}

.page-contact .faq-card-title {
  font: var(--font-heading, 800 1.125rem/1.3 'Inter', sans-serif);
  font-weight: 700;
  font-size: 1.0625rem;
  margin: 0 0 0.5rem;
  color: var(--color-text, #0A2647);
}

.page-contact .faq-card-text {
  font: var(--font-body, 400 0.9375rem/1.5 'Inter', sans-serif);
  margin: 0 0 0.875rem;
  color: var(--color-text-secondary, #4A5568);
}

/* ===== 按钮调整 ===== */
.page-contact .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font: var(--font-body, 400 0.9375rem/1.2 'Inter', sans-serif);
  font-weight: 600;
  padding: 0.625rem 1.25rem;
  border-radius: 4px;
  text-decoration: none;
  transition: background 0.2s, color 0.2s, transform 0.15s;
  border: 2px solid transparent;
}

.page-contact .btn-primary {
  background: var(--color-accent, #FF6B35);
  color: var(--color-text-on-accent, #FFFFFF);
  border-color: var(--color-accent, #FF6B35);
}

.page-contact .btn-primary:hover {
  background: var(--color-accent-dark, #CC552A);
  border-color: var(--color-accent-dark, #CC552A);
  transform: translateY(-1px);
}

.page-contact .btn-outline {
  background: transparent;
  color: var(--color-primary, #0A2647);
  border-color: var(--color-primary, #0A2647);
}

.page-contact .btn-outline:hover {
  background: var(--color-primary, #0A2647);
  color: var(--color-text-on-primary, #FFFFFF);
  transform: translateY(-1px);
}

.page-contact .btn-small {
  padding: 0.4375rem 1rem;
  font-size: 0.8125rem;
}

/* ===== 桌面端 (≥768px) ===== */
@media screen and (min-width: 768px) {
  .page-contact .contact-hero {
    padding: 3rem 0 2.5rem;
  }

  .page-contact .hero-layout {
    flex-direction: row;
    align-items: center;
    gap: 2.5rem;
  }

  .page-contact .hero-image-wrap {
    width: 45%;
    max-width: 26rem;
  }

  .page-contact .contact-main {
    padding: 3.5rem 0;
  }

  .page-contact .contact-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }

  .page-contact .card {
    padding: 2rem 1.75rem;
  }

  .page-contact .card-heading {
    font-size: 1.5rem;
  }

  .page-contact .faq-section {
    padding: 3.5rem 0 4.5rem;
  }

  .page-contact .faq-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }

  .page-contact .section-heading {
    font-size: 1.5rem;
  }
}

/* ===== 大桌面端 (≥1024px) ===== */
@media screen and (min-width: 1024px) {
  .page-contact .contact-hero {
    padding: 3.5rem 0 3rem;
  }

  .page-contact .hero-title {
    font-size: 2.5rem;
  }

  .page-contact .hero-desc {
    font-size: 1.125rem;
  }

  .page-contact .contact-main {
    padding: 4rem 0;
  }

  .page-contact .contact-grid {
    gap: 3rem;
  }

  .page-contact .faq-section {
    padding: 4rem 0 5rem;
  }
}

/* ===== 极端窄屏保护 ===== */
@media screen and (max-width: 360px) {
  .page-contact .contact-item {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .page-contact .contact-icon {
    flex-basis: 1.75rem;
    width: 1.75rem;
    height: 1.75rem;
  }

  .page-contact .contact-icon svg {
    width: 1rem;
    height: 1rem;
  }

  .page-contact .card {
    padding: 1.25rem 1rem;
  }

  .page-contact .hero-title {
    font-size: 1.5rem;
  }
}

/* ===== 减少动画偏好 ===== */
@media screen and (prefers-reduced-motion: reduce) {
  .page-contact .contact-icon,
  .page-contact .cooperation-img,
  .page-contact .card,
  .page-contact .faq-card,
  .page-contact .btn {
    transition: none !important;
    transform: none !important;
  }

  .page-contact .cooperation-img-wrap:hover .cooperation-img {
    transform: none;
  }

  .page-contact .contact-item[data-click-copy]:hover .contact-icon {
    transform: none;
  }

  .page-contact .btn-primary:hover,
  .page-contact .btn-outline:hover {
    transform: none;
  }
}