.page-hero {
  text-align: center;
  padding: 48px 24px 32px;
}

.page-title {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  max-width: 520px;
  margin: 0 auto;
}

.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 24px;
}

.filter-categories {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-sort {
  display: flex;
  align-items: center;
  gap: 8px;
}

.filter-sort select {
  padding: 8px 32px 8px 12px;
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--color-text);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  transition: all var(--transition-fast);
}

.filter-sort select:focus {
  border-color: var(--color-primary);
}

.gallery-grid {
  min-height: 400px;
}

.gallery-empty {
  text-align: center;
  padding: 80px 24px;
  color: var(--color-text-muted);
}

.gallery-empty-icon {
  font-size: 4rem;
  margin-bottom: 16px;
  opacity: 0.5;
}

.gallery-empty-text {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.gallery-empty-hint {
  font-size: 0.9rem;
}

.load-more-wrap {
  text-align: center;
  padding: 40px 0 20px;
}

.detail-page {
  padding-top: calc(var(--header-height) + 24px);
  min-height: 100vh;
}

.detail-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px 48px;
}

.detail-image-section {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: 32px;
  box-shadow: 0 8px 32px var(--color-shadow);
}

.detail-image {
  width: 100%;
  display: block;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.detail-info-grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 32px;
}

@media (max-width: 800px) {
  .detail-info-grid {
    grid-template-columns: 1fr;
  }

  .detail-sidebar {
    order: -1;
  }
}

.detail-main h1 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.3;
}

.detail-description {
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
  font-size: 0.95rem;
}

.detail-meta-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.meta-item {
  padding: 14px 16px;
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.meta-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.meta-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
}

.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.detail-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.detail-sidebar {
  position: sticky;
  top: calc(var(--header-height) + 24px);
}

.sidebar-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 20px;
}

.sidebar-card-title {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.author-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
}

.author-name {
  font-weight: 600;
  font-size: 0.95rem;
}

.download-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.download-option-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  color: var(--color-text);
  transition: all var(--transition-fast);
}

.download-option-btn:hover {
  border-color: var(--color-primary);
  background-color: rgba(99, 102, 241, 0.05);
}

.download-option-btn span:last-child {
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

.back-nav {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 0;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  margin-bottom: 20px;
  transition: color var(--transition-fast);
}

.back-nav:hover {
  color: var(--color-primary);
}

.stats-row {
  display: flex;
  gap: 20px;
  padding: 16px 0;
  border-top: 1px solid var(--color-border);
  margin-top: 16px;
}

.stat-box {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.like-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  background-color: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: 1px solid var(--color-border);
}

.like-btn:hover,
.like-btn.liked {
  background-color: #fef2f2;
  color: #ef4444;
  border-color: #fecaca;
}

.like-btn.liked svg {
  fill: #ef4444;
}

.mobile-menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 1.3rem;
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: flex;
  }

  .search-box {
    display: none;
  }

  .page-title {
    font-size: 1.6rem;
  }

  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .filter-categories {
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 8px;
    -webkit-overflow-scrolling: touch;
  }

  .detail-main h1 {
    font-size: 1.4rem;
  }

  .detail-meta-list {
    grid-template-columns: 1fr 1fr;
  }
}