/* ========================================
   子页面样式 - 晶体体系
   ======================================== */

/* 页面头部 */
.page-hero {
  margin-top: var(--spacing-2xl);
  padding: var(--spacing-4xl) 0;
  background: linear-gradient(140deg, rgba(176, 190, 197, 0.35), rgba(236, 239, 241, 0));
  position: relative;
  overflow: hidden;
}

.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(253, 216, 53, 0.2), transparent 40%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--spacing-3xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: clamp(2.5rem, 3.6vw, 3.4rem);
  color: var(--color-secondary-dark);
  margin: var(--spacing-md) 0 var(--spacing-lg);
}

.hero-lead {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-2xl);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-lg);
}

.hero-media {
  position: relative;
}

.hero-media img {
  width: 100%;
  border-radius: var(--radius-2xl);
  object-fit: cover;
  height: 420px;
  box-shadow: 0 30px 80px rgba(38, 50, 56, 0.2);
}

.hero-media .media-badge {
  position: absolute;
  bottom: var(--spacing-xl);
  left: var(--spacing-xl);
  background: rgba(12, 20, 29, 0.85);
  color: var(--color-white);
  padding: var(--spacing-md) var(--spacing-2xl);
  border-radius: var(--radius-xl);
  box-shadow: 0 20px 60px rgba(12, 20, 29, 0.35);
}

/* 页面内容 */
.page-content {
  padding: var(--spacing-4xl) 0;
}

.section-block {
  margin-bottom: var(--spacing-4xl);
  background: var(--color-surface);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-3xl);
  border: 1px solid var(--color-border);
  box-shadow: 0 25px 70px rgba(38, 50, 56, 0.08);
}

.section-block.transparent {
  background: transparent;
  box-shadow: none;
  border: none;
  padding: 0;
}

.section-heading {
  margin-bottom: var(--spacing-2xl);
}

.section-heading .section-title,
.page-content .section-title {
  font-size: clamp(2rem, 3vw, 2.8rem);
  color: var(--color-secondary-dark);
  margin-bottom: var(--spacing-md);
}

.section-heading .section-title {
  margin-top: var(--spacing-sm);
  text-align: left;
}

.section-heading p {
  color: var(--color-text-secondary);
  max-width: 740px;
}

.split-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--spacing-3xl);
  align-items: center;
}

.split-media img {
  width: 100%;
  height: 360px;
  object-fit: cover;
  border-radius: var(--radius-2xl);
  box-shadow: 0 25px 70px rgba(38, 50, 56, 0.15);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--spacing-2xl);
}

.stat-card {
  padding: var(--spacing-2xl);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(176, 190, 197, 0.35), rgba(255, 255, 255, 0.9));
  border: 1px solid rgba(176, 190, 197, 0.45);
  position: relative;
  overflow: hidden;
}

.stat-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.3), transparent 40%);
}

.stat-card strong {
  display: block;
  font-size: var(--font-size-4xl);
  color: var(--color-secondary-dark);
  margin-bottom: var(--spacing-xs);
  position: relative;
  z-index: 1;
}

.stat-card span {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
  position: relative;
  z-index: 1;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-xl);
}

.info-card {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  border: 1px solid var(--color-border);
  box-shadow: 0 20px 50px rgba(38, 50, 56, 0.06);
}

.info-card h4 {
  color: var(--color-secondary-dark);
  margin-bottom: var(--spacing-sm);
}

.info-card p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.timeline {
  position: relative;
  padding-left: var(--spacing-3xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 16px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-secondary-dark), transparent);
}

.timeline-item {
  position: relative;
  padding: var(--spacing-xl) 0;
}

.timeline-marker {
  position: absolute;
  left: -6px;
  top: 24px;
  width: 14px;
  height: 14px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  box-shadow: 0 0 0 6px rgba(253, 216, 53, 0.1);
}

.timeline-content {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  border: 1px solid var(--color-border);
  box-shadow: 0 15px 45px rgba(38, 50, 56, 0.08);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-xl);
}

.feature-card {
  padding: var(--spacing-2xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  min-height: 220px;
  box-shadow: 0 20px 55px rgba(38, 50, 56, 0.08);
}

.feature-card h4 {
  margin-bottom: var(--spacing-sm);
  color: var(--color-secondary-dark);
}

.feature-card ul {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.tag {
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-full);
  border: 1px solid rgba(96, 125, 139, 0.3);
  color: var(--color-secondary-dark);
  font-size: var(--font-size-sm);
  background: rgba(255, 255, 255, 0.85);
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 20px 55px rgba(38, 50, 56, 0.08);
}

.spec-table thead {
  background: linear-gradient(90deg, var(--color-secondary-dark), var(--color-primary-dark));
  color: var(--color-white);
}

.spec-table th,
.spec-table td {
  padding: var(--spacing-lg) var(--spacing-xl);
  text-align: left;
  font-size: var(--font-size-sm);
}

.spec-table tbody tr:nth-child(2n) {
  background: rgba(176, 190, 197, 0.12);
}

.spec-table tbody tr:hover {
  background: rgba(253, 216, 53, 0.12);
}

.list-table {
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: 0 15px 45px rgba(38, 50, 56, 0.08);
}

.list-table .list-header,
.list-table article {
  display: grid;
  grid-template-columns: 160px 1fr 180px;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg) var(--spacing-xl);
}

.list-table .list-header {
  background: var(--color-bg-secondary);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-secondary-dark);
}

.list-table article {
  border-bottom: 1px solid var(--color-border);
}

.list-table article:last-child {
  border-bottom: none;
}

.list-table .label {
  font-weight: var(--font-weight-semibold);
  color: var(--color-secondary-dark);
}

.list-table .meta {
  color: var(--color-text-tertiary);
  font-size: var(--font-size-sm);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  background: rgba(253, 216, 53, 0.2);
  color: var(--color-secondary-dark);
  font-size: var(--font-size-sm);
}

.quote-card {
  border-radius: var(--radius-2xl);
  padding: var(--spacing-3xl);
  background: linear-gradient(150deg, rgba(255, 255, 255, 0.95), rgba(176, 190, 197, 0.3));
  border: 1px solid rgba(176, 190, 197, 0.4);
  box-shadow: 0 30px 70px rgba(38, 50, 56, 0.12);
}

.quote-card p {
  font-size: var(--font-size-xl);
  color: var(--color-secondary-dark);
  line-height: var(--line-height-relaxed);
}

.quote-card span {
  display: block;
  color: var(--color-text-tertiary);
  margin-top: var(--spacing-lg);
}

/* 响应式 */
@media (max-width: 1024px) {
  .hero-grid,
  .split-layout {
    grid-template-columns: 1fr;
  }
  
  .hero-media img {
    height: 360px;
  }
  
  .stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  
  .info-grid,
  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  
  .hero-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .hero-stats,
  .stat-grid,
  .info-grid,
  .feature-grid {
    grid-template-columns: 1fr;
  }
  
  .section-block {
    padding: var(--spacing-2xl);
  }
  
  .timeline {
    padding-left: var(--spacing-2xl);
  }
  
  .list-table .list-header,
  .list-table article {
    grid-template-columns: 1fr;
  }
  
  .hero-media img {
    height: 300px;
  }
}