/* ============================================
   2027AI旗舰版 - 内页公用样式
   ============================================ */

/* Page Banner */
.page-banner {
  position: relative;
  padding: 140px 0 80px;
  background: var(--bg-deep);
  overflow: hidden;
}
.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 80%, rgba(0,179,126,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.page-banner .container { position: relative; z-index: 1; }

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  font-size: 0.875rem;
  color: var(--text-muted);
}
.breadcrumb a { color: var(--text-muted); transition: var(--transition-fast); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { opacity: 0.3; }
.breadcrumb .current { color: var(--primary); }

/* Page Title */
.page-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.page-desc {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.7;
}

/* Content Section */
.content-section {
  padding: 80px 0;
  background: var(--bg-deep);
  position: relative;
  z-index: 1;
}
.content-section.alt { background: var(--bg-card); }
.content-section.light { background: var(--bg-light); }

/* Sub Nav */
.sub-nav {
  background: var(--bg-card);
  border-bottom: 1px solid rgba(0,0,0,0.04);
  position: sticky;
  top: 72px;
  z-index: 100;
}
.sub-nav .container {
  display: flex;
  align-items: center;
  gap: 4px;
  overflow-x: auto;
  padding: 0;
  -ms-overflow-style: none;
  scrollbar-width: none;
}
.sub-nav .container::-webkit-scrollbar { display: none; }
.sub-nav a {
  display: block;
  padding: 16px 20px;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  font-weight: 500;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: var(--transition-fast);
}
.sub-nav a:hover { color: var(--text-primary); }
.sub-nav a.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

/* Section Title */
.section-title {
  text-align: center;
  margin-bottom: 48px;
}
.section-title .subtitle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title h2 {
  color: var(--text-primary);
  margin-bottom: 12px;
}

/* Pagination */
.pagination {
  display: flex !important;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 40px 0;
  list-style: none !important;
  margin: 0;
}
.pagination li {
  display: flex;
  list-style: none !important;
  margin: 0;
  padding: 0;
}
.pagination li a, .pagination li span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid rgba(0,0,0,0.06);
  transition: var(--transition-fast);
  text-decoration: none;
  cursor: pointer;
}
.pagination li a:hover {
  border-color: rgba(0,179,126,0.3);
  color: var(--primary);
}
.pagination li.active span,
.pagination li.active a {
  background: var(--gradient-primary);
  color: var(--text-dark);
  border-color: transparent;
}
.pagination li.disabled span,
.pagination li.disabled a {
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}

/* Detail Layout */
.detail-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 48px;
  align-items: start;
}
.detail-main { min-width: 0; }
.detail-content {
  line-height: 1.9;
  color: var(--text-secondary);
}
.detail-content img {
  max-width: 100%;
  border-radius: var(--radius-lg);
  margin: 24px 0;
}
.detail-content p { margin-bottom: 16px; }
.detail-content h2, .detail-content h3, .detail-content h4 {
  color: var(--text-primary);
  margin: 32px 0 16px;
}

/* Sidebar */
.sidebar-card {
  background: var(--bg-card);
  border: 1px solid rgba(0,0,0,0.04);
  border-radius: var(--radius-xl);
  padding: 24px;
  margin-bottom: 24px;
}
.sidebar-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(0,0,0,0.04);
}
.sidebar-title svg {
  width: 20px;
  height: 20px;
  color: var(--primary);
}
.sidebar-title h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 80px 24px;
  color: var(--text-muted);
}
.empty-state svg { margin-bottom: 16px; opacity: 0.3; }
.empty-state p { font-size: 1rem; }

/* News Grid Layout (for list) */
.news-grid { display: grid; grid-template-columns: 1fr 340px; gap: 48px; align-items: start; }

/* Product Grid (for list) */
.product-list-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* Responsive */
@media (max-width: 1024px) {
  .detail-layout, .news-grid { grid-template-columns: 1fr; }
  .product-list-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .page-banner { padding: 100px 0 60px; }
  .content-section { padding: 60px 0; }
  .product-list-grid { grid-template-columns: 1fr; }
  .sub-nav { top: 56px; }
  .sub-nav a { padding: 12px 14px; font-size: 0.875rem; }
}