/* 商品筛选：单独的工作区，搜索与分类有明确分组。 */
.catalog { padding-top: 28px; padding-bottom: 56px; flex: 1; }
.catalog-breadcrumb { display: flex; flex-wrap: wrap; gap: 10px; color: var(--text-secondary); font-size: 12px; margin-bottom: 24px; }
.catalog-breadcrumb a:hover { color: var(--primary-hover); }
.catalog-heading { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; margin-bottom: 22px; }
.catalog-heading h1 { font-size: 30px; line-height: 1.4; letter-spacing: -.6px; overflow-wrap: anywhere; }
.catalog-heading > span { color: var(--text-secondary); font-size: 13px; white-space: nowrap; }
.catalog-filters { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 14px; padding: 24px; margin-bottom: 24px; }
.catalog-search { display: flex; gap: 10px; max-width: 560px; margin-bottom: 22px; }
.catalog-search input { min-width: 0; flex: 1; height: 44px; border: 1px solid var(--border-color); border-radius: 9px; padding: 0 14px; color: var(--text-main); background: var(--bg-color); }
.catalog-search input:focus { border-color: var(--primary-color); outline: none; background: var(--card-bg); }
.catalog-search button { background: var(--primary-color); color: var(--card-bg); border-radius: 9px; padding: 0 28px; font-weight: 600; }
.catalog-search button:hover { background: var(--primary-hover); }
.catalog-categories { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 13px; }
.catalog-categories > span { color: var(--text-secondary); margin-right: 12px; }
.catalog-categories a { min-height: 38px; padding: 8px 16px; border-radius: 8px; border: 1px solid transparent; color: var(--text-secondary); }
.catalog-categories a:hover { color: var(--primary-hover); background: var(--primary-light); }
.catalog-categories .active { color: var(--primary-hover); background: var(--primary-light); border-color: var(--primary-border); font-weight: 600; }
.catalog-products { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.catalog-product { min-width: 0; display: flex; flex-direction: column; background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 14px; overflow: hidden; transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast); }
.catalog-product:hover { border-color: var(--primary-border); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.catalog-image { display: flex; align-items: center; justify-content: center; position: relative; aspect-ratio: 1; overflow: hidden; color: var(--text-muted); }
.catalog-image img { display: block; width: 100%; height: 100%; object-fit: contain; padding: 16px; transition: transform var(--transition-base); }
.catalog-product:hover img { transform: scale(1.025); }
.catalog-product-info { padding: 16px 18px 18px; border-top: 1px solid var(--border-color); flex: 1; }
.catalog-product h2 { font-size: 14px; font-weight: 550; line-height: 24px; height: 48px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; overflow-wrap: anywhere; }
.catalog-product h2 a:hover { color: var(--primary-hover); }
.catalog-original { font-size: 12px; color: var(--text-muted); margin-top: 10px; }
.catalog-price { margin-top: 5px; color: var(--primary-hover); font-size: 12px; }
.catalog-price strong { font-size: 26px; font-weight: 750; font-variant-numeric: tabular-nums; white-space: nowrap; }
.catalog .catalog-recycle { width: 100%; min-height: 42px; margin-top: 16px; border-radius: 9px; background: var(--primary-light); border: 1px solid var(--primary-border); color: var(--primary-hover); font-weight: 600; }
.catalog .catalog-recycle:hover { background: var(--primary-color); color: var(--card-bg); transform: none; }
.catalog-contact { display: block; text-align: center; color: var(--primary-hover); margin-top: 12px; font-size: 13px; }
.catalog-pagination { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; margin-top: 32px; }
.catalog-pagination a { min-width: 40px; height: 40px; text-align: center; padding: 8px 14px; border: 1px solid var(--border-color); border-radius: 9px; background: var(--card-bg); }
.catalog-pagination a:hover { border-color: var(--primary-border); color: var(--primary-hover); }
.catalog-pagination [aria-current] { background: var(--primary-color); border-color: var(--primary-color); color: var(--card-bg); }
.catalog-empty { padding: 72px 24px; text-align: center; background: var(--card-bg); border: 1px dashed var(--border-color); border-radius: 14px; }
.catalog-empty h2 { font-size: 18px; margin-bottom: 12px; }
.catalog-empty a, .catalog-back { color: var(--primary-hover); }
.catalog-back { display: inline-block; margin-top: 24px; }
@media (max-width: 1000px) { .catalog-products { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; } }
@media (max-width: 600px) {
  .catalog-heading h1 { font-size: 24px; }
  .catalog-heading { align-items: flex-start; flex-direction: column; gap: 8px; }
  .catalog-filters { padding: 18px; }
  .catalog-search button { padding-inline: 20px; }
  .catalog-products { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .catalog-product-info { padding: 12px; }
  .catalog-image img { padding: 10px; }
  .catalog-price strong { font-size: 23px; }
}