.contact-hero {
  padding: 140px 0 80px;
  background: linear-gradient(135deg, #f8f9fa 0%, #e8f0fe 50%, #f3e8ff 100%);
  position: relative;
  overflow: hidden;
}

.contact-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(26, 115, 232, 0.12), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.contact-hero .container {
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.hero-content .tag {
  margin-bottom: 20px;
}

.hero-content h1 {
  font-size: 3rem;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--color-primary), #6c63ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content p {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.breadcrumb {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.breadcrumb a {
  color: var(--color-text-secondary);
}

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

.breadcrumb .separator {
  margin: 0 8px;
  color: var(--color-border);
}

.contact-lead {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  background: var(--color-primary-light);
  border-left: 4px solid var(--color-primary);
  padding: 24px;
  border-radius: var(--radius-md);
  margin-bottom: 48px;
}

.contact-lead-icon {
  font-size: 2rem;
  line-height: 1;
  flex-shrink: 0;
}

.contact-lead-content h3 {
  font-size: 1.125rem;
  margin-bottom: 6px;
  color: var(--color-primary-dark);
}

.contact-lead-content p {
  color: var(--color-text);
  margin-bottom: 0;
  font-size: 0.9375rem;
}

.channel-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.channel-card {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.channel-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), #6c63ff);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.channel-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.channel-card:hover::before {
  transform: scaleX(1);
}

.channel-card.featured {
  border: 2px solid var(--color-primary);
  position: relative;
}

.channel-card.featured::after {
  content: '推荐';
  position: absolute;
  top: 16px;
  right: 16px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 100px;
}

.channel-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 20px;
}

.channel-icon.ticket {
  background: #e8f5e9;
  color: var(--color-secondary);
}

.channel-icon.chat {
  background: #fff3e0;
  color: #ff9800;
}

.channel-icon.email {
  background: #e3f2fd;
  color: var(--color-primary);
}

.channel-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.channel-card .channel-desc {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  margin-bottom: 20px;
  line-height: 1.6;
}

.channel-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 28px;
}

.channel-features li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.channel-features li::before {
  content: '✓';
  color: var(--color-secondary);
  font-weight: 700;
  flex-shrink: 0;
}

.channel-meta {
  display: flex;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border-light);
  margin-bottom: 20px;
}

.channel-meta-item {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

.channel-meta-item strong {
  color: var(--color-text);
  display: block;
  font-size: 0.875rem;
}

.channel-cta {
  width: 100%;
}

.backend-preview {
  background: var(--color-bg-alt);
}

.preview-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.preview-content .subtitle {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 12px;
}

.preview-content h2 {
  font-size: 2rem;
  margin-bottom: 16px;
}

.preview-content > p {
  color: var(--color-text-secondary);
  margin-bottom: 32px;
  font-size: 1.0625rem;
}

.preview-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.preview-item {
  display: flex;
  gap: 16px;
}

.preview-item-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.preview-item h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.preview-item p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

.preview-visual {
  position: relative;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
}

.preview-window {
  background: var(--color-bg-dark);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.preview-window .window-dots {
  display: flex;
  gap: 6px;
}

.preview-window .window-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.preview-window .window-dots span:nth-child(1) { background: #ff5f57; }
.preview-window .window-dots span:nth-child(2) { background: #febc2e; }
.preview-window .window-dots span:nth-child(3) { background: #28c840; }

.preview-window .window-title {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.8125rem;
  margin-left: 12px;
}

.preview-body {
  background: var(--color-bg);
  padding: 24px;
  min-height: 280px;
}

.dashboard-sim {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 16px;
  min-height: 260px;
}

.dashboard-sidebar {
  background: var(--color-bg-dark);
  border-radius: var(--radius-md);
  padding: 12px 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.dashboard-sidebar span {
  height: 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.15);
}

.dashboard-sidebar span:nth-child(1) { background: var(--color-primary); width: 80%; }
.dashboard-sidebar span:nth-child(2) { width: 60%; }
.dashboard-sidebar span:nth-child(3) { width: 70%; }
.dashboard-sidebar span:nth-child(4) { width: 50%; }
.dashboard-sidebar span:nth-child(5) { width: 65%; }

.dashboard-main {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.dashboard-header-row {
  display: flex;
  gap: 8px;
}

.dashboard-header-row span {
  flex: 1;
  height: 20px;
  border-radius: 4px;
  background: var(--color-primary-light);
}

.dashboard-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.dashboard-card {
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  padding: 10px;
}

.dashboard-card .card-value {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.dashboard-card .card-label {
  font-size: 0.6875rem;
  color: var(--color-text-secondary);
}

.dashboard-list {
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  padding: 10px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.dashboard-list .list-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
}

.dashboard-list .list-row .list-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-secondary);
}

.dashboard-list .list-row span:last-child {
  color: var(--color-text-secondary);
  font-size: 0.6875rem;
}

.faq-section {
  background: var(--color-bg);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  max-width: 960px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  background: transparent;
  text-align: left;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.faq-question:hover {
  background: var(--color-bg-alt);
}

.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  transition: transform var(--transition-base);
  flex-shrink: 0;
  margin-left: 12px;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--color-primary);
  color: white;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.faq-answer-inner a {
  color: var(--color-primary);
  font-weight: 600;
}

.cta-section {
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, #1e3a5f 100%);
  color: var(--color-text-light);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at top right, rgba(26, 115, 232, 0.3), transparent 60%);
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.cta-content h2 {
  color: var(--color-text-light);
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.cta-content p {
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 36px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-actions .btn-primary {
  padding: 16px 36px;
  font-size: 1.0625rem;
}

.cta-actions .btn-ghost {
  padding: 16px 36px;
  font-size: 1.0625rem;
}

.cta-note {
  margin-top: 24px;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
}

.cta-note a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: underline;
}

@media (max-width: 960px) {
  .channel-cards {
    grid-template-columns: 1fr;
  }

  .channel-card.featured {
    order: -1;
  }

  .preview-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .preview-visual {
    max-width: 480px;
    margin: 0 auto;
  }

  .faq-grid {
    grid-template-columns: 1fr;
  }

  .hero-content h1 {
    font-size: 2.25rem;
  }

  .hero-content p {
    font-size: 1rem;
  }
}

@media (max-width: 560px) {
  .contact-hero {
    padding: 120px 0 60px;
  }

  .preview-content h2 {
    font-size: 1.5rem;
  }

  .dashboard-sim {
    grid-template-columns: 60px 1fr;
  }

  .cta-content h2 {
    font-size: 1.75rem;
  }

  .contact-lead {
    flex-direction: column;
    gap: 12px;
  }
}