/* =====================================================
   产品页 (Products) 样式 — 列表 + 详情共用
   ===================================================== */

/* ===== 通用页头 hero ===== */
.page-hero {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-mid));
  color: #fff;
  padding: 56px 0;
}
.page-hero h1 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 10px;
}
.page-hero p {
  font-size: 16px;
  opacity: 0.85;
}

/* =====================================================
   产品列表 (Products/Index)
   ===================================================== */
.products-page .layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 40px;
  align-items: start;
}

.products-page .category-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  position: sticky;
  top: 80px;
}
.products-page .cat-title {
  font-size: 15px;
  font-weight: 600;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.products-page .cat-item {
  display: block;
  padding: 14px 20px;
  font-size: 15px;
  cursor: pointer;
  transition: all var(--transition);
  border-left: 3px solid transparent;
  color: var(--color-text-secondary);
}
.products-page .cat-item:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
}
.products-page .cat-item.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 600;
  border-left-color: var(--color-primary);
}

.products-page .products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

/* ===== 产品卡片 ===== */
.product-card {
  display: flex;
  flex-direction: column;
}
.product-card .cover {
  aspect-ratio: 4 / 3;
  overflow: hidden;
}
.product-card .cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.product-card:hover .cover img {
  transform: scale(1.04);
}
.product-card .cover .placeholder-img {
  width: 100%;
  height: 100%;
  min-height: 200px;
}

.product-card .body {
  padding: 20px 24px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.product-card .tags {
  margin-bottom: 10px;
}
.product-card .name {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}
.product-card .subtitle {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.product-card .specs {
  background: #f8faf8;
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin-bottom: 16px;
  flex: 1;
}
.product-card .spec-row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px solid var(--color-border);
}
.product-card .spec-row:last-child {
  border-bottom: none;
}
.product-card .spec-label {
  font-size: 13px;
  color: var(--color-text-muted);
}
.product-card .spec-value {
  font-size: 13px;
  color: var(--color-text);
  font-weight: 500;
  text-align: right;
}

.product-card .cta {
  font-size: 14px;
  color: var(--color-primary);
  font-weight: 600;
  text-align: right;
}

/* =====================================================
   产品详情 (Products/Detail)
   ===================================================== */
.product-detail .top-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}

.product-detail .main-img {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.product-detail .main-img img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
  cursor: zoom-in;
}
.product-detail .main-img .placeholder-img {
  height: 400px;
}

.product-detail .thumbs {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  flex-wrap: wrap;
}
.product-detail .thumb {
  width: 80px;
  height: 60px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color var(--transition);
  background: none;
  padding: 0;
}
.product-detail .thumb.active {
  border-color: var(--color-primary);
}
.product-detail .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== 大图灯箱 ===== */
.product-detail .lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.88);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 72px;
}
.product-detail .lightbox[hidden] {
  display: none;
}
.product-detail .lightbox-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  display: block;
  border-radius: var(--radius-sm);
}
.product-detail .lightbox-close,
.product-detail .lightbox-nav {
  position: absolute;
  background: rgba(255, 255, 255, 0.12);
  border: none;
  color: #fff;
  cursor: pointer;
  line-height: 1;
  border-radius: 50%;
  transition: background var(--transition);
}
.product-detail .lightbox-close:hover,
.product-detail .lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.28);
}
.product-detail .lightbox-close {
  top: 20px;
  right: 24px;
  width: 44px;
  height: 44px;
  font-size: 28px;
}
.product-detail .lightbox-nav {
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  font-size: 34px;
}
.product-detail .lightbox-nav.prev {
  left: 16px;
}
.product-detail .lightbox-nav.next {
  right: 16px;
}
.product-detail .lightbox-counter {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.85);
  font-size: 14px;
  letter-spacing: 1px;
}

.product-detail .info .product-name {
  font-size: 36px;
  font-weight: 800;
  margin: 12px 0 6px;
}
.product-detail .info .product-subtitle {
  font-size: 16px;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}
.product-detail .info .product-desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.9;
  margin-bottom: 32px;
  white-space: pre-line;
}
.product-detail .info .actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.product-detail .specs-table {
  max-width: 800px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.product-detail .specs-table .spec-row {
  display: flex;
}
.product-detail .specs-table .spec-row.even {
  background: #f8faf8;
}
.product-detail .specs-table .spec-label {
  width: 200px;
  flex-shrink: 0;
  padding: 14px 20px;
  font-size: 14px;
  color: var(--color-text-muted);
  border-right: 1px solid var(--color-border);
}
.product-detail .specs-table .spec-value {
  padding: 14px 20px;
  font-size: 14px;
  color: var(--color-text);
  font-weight: 500;
}

/* ===== 未发布预览提示条 ===== */
.product-detail .preview-banner {
  background: #fff4e5;
  border-bottom: 1px solid #ffd8a8;
  color: #8a5300;
  font-size: 14px;
  padding: 12px 0;
}
.product-detail .preview-banner strong {
  display: inline-block;
  margin-right: 10px;
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  background: #f08c00;
  color: var(--color-white);
  font-size: 13px;
}

/* ===== 参数表格（技术参数区块内的多列表格） ===== */
.product-detail .spec-table-block {
  margin-top: 32px;
}
.product-detail .spec-table-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 14px;
}
.product-detail .spec-table-scroll {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  /* 两侧渐变阴影：内容溢出时才出现，纯 CSS 无需 JS。
     local 层是白色遮罩，随内容滚走；scroll 层是阴影，固定在容器边缘 */
  background:
    linear-gradient(to right, var(--color-white) 30%, rgba(255, 255, 255, 0)) left / 24px 100% no-repeat local,
    linear-gradient(to left, var(--color-white) 30%, rgba(255, 255, 255, 0)) right / 24px 100% no-repeat local,
    linear-gradient(to right, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0)) left / 12px 100% no-repeat scroll,
    linear-gradient(to left, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0)) right / 12px 100% no-repeat scroll,
    var(--color-white);
}
.product-detail .spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.product-detail .spec-table th,
.product-detail .spec-table td {
  padding: 12px 18px;
  /* 宁可横向滚动，也不让 -408.38/+322.05 这类数值折行错位 */
  white-space: nowrap;
  border-bottom: 1px solid var(--color-border);
}
.product-detail .spec-table thead th {
  background: #f8faf8;
  color: var(--color-text-secondary);
  font-weight: 600;
  text-align: left;
}
.product-detail .spec-table tbody td {
  color: var(--color-text);
}
.product-detail .spec-table tbody tr:nth-child(even) td {
  background: #f8faf8;
}
.product-detail .spec-table tbody tr:last-child td {
  border-bottom: none;
}
.product-detail .spec-table .ta-center {
  text-align: center;
}
.product-detail .spec-table .ta-right {
  text-align: right;
}

.product-detail .scenarios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.product-detail .scenario-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  font-size: 15px;
}
.product-detail .scenario-item .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
}

@media (max-width: 1199px) {
  .products-page .layout {
    grid-template-columns: 200px 1fr;
  }
  .product-detail .scenarios-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  /* 侧栏分类改为顶部横向滚动标签，网格占满整宽 */
  .products-page .layout {
    grid-template-columns: 1fr;
  }
  .products-page .category-card {
    position: static;
  }
  .products-page .cat-title {
    display: none;
  }
  .products-page .category-card ul {
    display: flex;
    overflow-x: auto;
  }
  .products-page .cat-item {
    white-space: nowrap;
    border-left: none;
    border-bottom: 3px solid transparent;
  }
  .products-page .cat-item.active {
    border-bottom-color: var(--color-primary);
  }
  .products-page .products-grid {
    grid-template-columns: 1fr;
  }
  /* 详情图廊在平板中段保持双列，到 900 才堆叠 */
  .product-detail .top-layout {
    grid-template-columns: 1fr;
  }
  .product-detail .specs-table .spec-label {
    width: 150px;
  }
}

@media (max-width: 767px) {
  .product-detail .info .product-name {
    font-size: 26px;
  }
  .product-detail .scenarios-grid {
    grid-template-columns: 1fr;
  }
  .product-detail .specs-table .spec-label {
    width: 110px;
  }
  .product-detail .spec-table-title {
    font-size: 16px;
  }
  .product-detail .spec-table {
    font-size: 13px;
  }
  .product-detail .spec-table th,
  .product-detail .spec-table td {
    padding: 10px 12px;
  }
  .product-detail .main-img img,
  .product-detail .main-img .placeholder-img {
    height: 260px;
  }
  /* 窄屏给箭头让位，否则大图两侧被压得很窄 */
  .product-detail .lightbox {
    padding: 56px 12px;
  }
  .product-detail .lightbox-nav {
    top: auto;
    bottom: 16px;
    transform: none;
    width: 40px;
    height: 40px;
    font-size: 28px;
  }
  .product-detail .lightbox-nav.prev {
    left: 24px;
  }
  .product-detail .lightbox-nav.next {
    right: 24px;
  }
  .product-detail .lightbox-counter {
    bottom: 28px;
  }
}