/* =========================================================
   Default 1.0.0 — product.css（P2-⑧ 拆分，由 theme.css/theme.js 抽出）
   仅本页面加载；核心共享样式仍由 layouts/theme.liquid head 加载 theme.css/theme.js
   ========================================================= */

/* ===== ProductPage.astro ===== */
  /* ===== 商品详情 §6（从 StorefrontDefault.astro 迁移） ===== */
  .product-detail {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 48px;
    padding: 32px 0;
  }
  .product-gallery-main {
    aspect-ratio: 1;
    background: var(--color-bg-alt);
    overflow: hidden;
    margin-bottom: 16px;
  }
  .product-gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .product-gallery-thumbs {
    display: flex;
    gap: 8px;
  }
  .product-gallery-thumbs img {
    width: 72px;
    height: 72px;
    object-fit: cover;
    border: 2px solid transparent;
    cursor: pointer;
  }
  .product-gallery-thumbs img.active {
    border-color: var(--color-text);
  }
  .product-info h1 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
  }
  .product-info-price {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
  }
  /* P-1 标题旁摘要区：价格 + 评分 + 库存 */
  .product-info-summary {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
  }
  .product-info-summary .product-info-price {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 0;
    color: var(--color-text);
  }
  .product-info-rating {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    text-decoration: none;
    color: var(--color-text-muted);
    font-size: 14px;
    transition: var(--transition);
  }
  .product-info-rating:hover {
    color: var(--color-accent);
  }
  .product-info-rating .rating-stars {
    color: #f59e0b;
    font-size: 16px;
    letter-spacing: 1px;
  }
  .product-info-rating .rating-count {
    color: var(--color-text-muted);
  }
  .product-info-availability {
    font-size: 13px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 4px;
  }
  .product-info-availability.in-stock {
    color: #2a9d8f;
    background: rgba(42, 157, 143, 0.1);
  }
  .product-info-availability.out-of-stock {
    color: #e63946;
    background: rgba(230, 57, 70, 0.1);
  }
  /* P-1 隐藏 buy-buttons 中的原价格块（已移至标题旁） */
  .product-buy-buttons > .product-buy-price {
    display: none;
  }
  /* ===== BeikeShop 商品详情页对齐 ===== */
  .product-detail {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 48px;
    padding: 24px 0 48px;
    margin-bottom: 16px;
  }
  /* 允许商品信息列在网格轨道内收缩，防止 min-content 撑爆轨道产生横向溢出 */
  .product-info {
    min-width: 0;
  }
  .product-info .product-name {
    font-size: 27.2px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 16px;
    line-height: 1.4;
  }
  .price-wrap {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    margin-bottom: 38.4px;
  }
  .price-wrap .new-price {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1;
  }
  .price-wrap .old-price {
    font-size: 14.4px;
    font-weight: 400;
    color: rgba(33, 37, 41, 0.75);
    text-decoration: line-through;
  }
  .stock-and-sku {
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
  }
  .stock-and-sku .sku-row {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 6px;
    font-size: 14px;
  }
  .stock-and-sku .title {
    font-weight: 600;
    color: var(--color-text-muted);
    min-width: 60px;
  }
  .stock-and-sku .text-success {
    color: #2a9d8f;
    font-weight: 600;
  }
  .stock-and-sku .text-danger {
    color: #e63946;
    font-weight: 600;
  }
  .stock-and-sku a {
    color: var(--color-text);
    text-decoration: none;
  }
  .stock-and-sku a:hover {
    color: var(--color-accent);
  }
  /* BeikeShop variables-wrap (variant picker restyle) */
  .product-variant-picker {
    margin-bottom: 20px;
  }
  .product-variant-picker .product-variant-sku {
    display: none;
  }
  .product-variant-picker .product-option {
    margin-bottom: 16px;
  }
  .product-variant-picker .product-option-label {
    font-size: 14px;
    font-weight: 600;
    text-transform: none;
    letter-spacing: 0;
    margin-bottom: 8px;
  }
  .product-variant-picker .product-option-value {
    min-width: 44px;
    height: 40px;
    padding: 0 12px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    background: #fff;
    cursor: pointer;
    font-size: 14px;
    font-weight: 400;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .product-variant-picker .product-option-value:hover:not(:disabled) {
    border-color: var(--color-text);
  }
  .product-variant-picker .product-option-value[aria-pressed="true"] {
    border-color: var(--color-text);
    background: var(--color-text);
    color: #fff;
  }
  .product-variant-picker .product-option-value:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    text-decoration: line-through;
  }
  .product-variant-picker .product-option-swatch {
    width: 36px;
    height: 36px;
    min-width: 36px;
    border-radius: 50%;
    border: 2px solid var(--color-border);
  }
  .product-variant-picker .product-option-swatch[aria-pressed="true"] {
    border-color: var(--color-text);
    background: transparent;
  }
  /* BeikeShop product-description tabs */
  .product-description {
    margin: 16px 0 48px;
    border-top: 1px solid var(--color-border);
    padding-top: 32px;
  }
  .product-description .nav-tabs {
    display: flex;
    gap: 32px;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: 24px;
    justify-content: flex-start;
  }
  @media (min-width: 768px) {
    .product-description .nav-tabs {
      justify-content: center;
    }
  }
  .product-description .nav-link {
    background: none;
    border: none;
    padding: 0 0 12px;
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text-muted);
    cursor: pointer;
    position: relative;
    transition: var(--transition);
  }
  .product-description .nav-link:hover {
    color: var(--color-text);
  }
  .product-description .nav-link.active {
    color: var(--color-text);
  }
  .product-description .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-text);
  }
  .product-description .tab-pane {
    display: none;
  }
  .product-description .tab-pane.active {
    display: block;
  }
  .product-description .tab-pane[hidden] {
    display: none !important;
  }
  /* Hide buy-buttons extras not in BeikeShop */
  .product-estimated-delivery,
  .product-trust-badge {
    display: none;
  }
  /* BeikeShop product-btns restyle */
  .product-buy-buttons .product-actions {
    display: flex;
    gap: 12px;
    margin-top: 12px;
  }
  .product-buy-buttons .product-actions .btn-primary {
    background: transparent;
    border: 1px solid var(--color-text);
    color: var(--color-text);
    font-weight: 700;
    border-radius: 100px;
    padding: 10px 24px;
  }
  .product-buy-buttons .product-actions .btn-primary:hover {
    background: var(--color-text);
    color: #fff;
  }
  .product-buy-buttons .product-actions .btn-outline {
    background: var(--color-text);
    border: 1px solid var(--color-text);
    color: #fff;
    font-weight: 700;
    border-radius: 100px;
    padding: 10px 24px;
  }
  .product-buy-buttons .product-actions .btn-outline:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
  }
  .product-buy-buttons .product-wishlist-btn {
    border-radius: 100px;
    font-weight: 400;
  }
  /* Gallery vertical thumbnail layout (BeikeShop style) */
  .product-media-gallery {
    display: flex;
    gap: 16px;
    flex-direction: row;
    /* 允许在 product-detail 网格轨道内收缩，防止 min-content 撑爆轨道产生横向溢出 */
    min-width: 0;
  }
  .product-gallery-thumbs {
    flex-direction: column;
    gap: 8px;
    width: 80px;
    flex-shrink: 0;
  }
  .product-gallery-thumbs .gallery-thumb {
    width: 80px;
    height: 80px;
    border: 2px solid transparent;
    border-radius: 4px;
    overflow: hidden;
    cursor: pointer;
    padding: 0;
    background: none;
  }
  .product-gallery-thumbs .gallery-thumb.active {
    border-color: var(--color-text);
  }
  .product-gallery-thumbs .gallery-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .product-gallery-main {
    flex: 1;
    margin-bottom: 0;
    border-radius: 12px;
    overflow: hidden;
  }
  @media (max-width: 767px) {
    .product-media-gallery {
      flex-direction: column;
    }
    .product-gallery-thumbs {
      flex-direction: row;
      width: 100%;
      overflow-x: auto;
    }
  }
  .product-option {
    margin-bottom: 24px;
  }
  .product-option-label {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
  }
  .product-option-values {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }
  .product-option-values input[type="radio"] {
    display: none;
  }
  .product-option-values label {
    padding: 10px 20px;
    border: 1px solid var(--color-border);
    cursor: pointer;
    font-size: 14px;
    transition: var(--transition);
  }
  .product-option-values input[type="radio"]:checked + label {
    border-color: var(--color-text);
    background: var(--color-text);
    color: #fff;
  }
  .quantity-selector {
    display: flex;
    align-items: center;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    width: fit-content;
    margin-bottom: 24px;
  }
  .quantity-selector button {
    width: 44px;
    height: 44px;
    font-size: 18px;
    color: var(--color-text);
  }
  .quantity-selector button:disabled {
    color: var(--color-text-light);
    cursor: not-allowed;
  }
  .quantity-selector input {
    width: 56px;
    height: 44px;
    border: none;
    border-left: 1px solid var(--color-border);
    border-right: 1px solid var(--color-border);
    text-align: center;
    font-size: 14px;
    font-family: inherit;
    outline: none;
  }
  .product-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 32px;
  }
  .product-actions .btn {
    flex: 1;
    padding: 18px;
  }
  .product-promises {
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    padding: 24px 0;
    margin-bottom: 32px;
  }
  .product-promises li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 6px 0;
    font-size: 14px;
    color: var(--color-text-muted);
  }
  .product-share {
    display: flex;
    gap: 16px;
    align-items: center;
    font-size: 13px;
    color: var(--color-text-muted);
  }
  .product-share a {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
    border-radius: 50%;
  }
  .product-share a:hover {
    border-color: var(--color-text);
  }

  /* ===== 支付徽章 §13.4 ===== */
  .payment-badges {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 0;
    border-top: 1px solid var(--color-border);
    margin-bottom: 24px;
    flex-wrap: wrap;
  }
  .payment-badges-label {
    font-size: 13px;
    color: var(--color-text-muted);
  }
  .payment-badges-list {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
  }
  .payment-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 32px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    background: var(--color-bg-alt);
    overflow: hidden;
    flex-shrink: 0;
  }
  .payment-badge svg {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  /* ===== 折叠面板 §6.9 ===== */
  .collapsible {
    border-top: 1px solid var(--color-border);
  }
  .collapsible-item {
    border-bottom: 1px solid var(--color-border);
  }
  .collapsible-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 20px 0;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    background: none;
    border: none;
    color: inherit;
    font-family: inherit;
    text-align: left;
  }
  .collapsible-header::after {
    content: "+";
    font-size: 20px;
    color: var(--color-text-muted);
  }
  .collapsible-item.active .collapsible-header::after {
    content: "−";
  }
  .collapsible-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    color: var(--color-text-muted);
    font-size: 14px;
    line-height: 1.7;
  }
  .collapsible-item.active .collapsible-content {
    max-height: 2000px;
    padding-bottom: 20px;
    overflow-y: auto;
  }

  /* 商品详情响应式 */
  @media (max-width: 768px) {
    .product-detail {
      grid-template-columns: 1fr;
      gap: 32px;
    }
    .product-actions {
      flex-direction: column;
    }
  }

  /* ===== P3-5 最近浏览（localStorage 简单实现） ===== */
  .recently-viewed-section {
    margin: 48px 0;
    padding: 32px 0;
    border-top: 1px solid var(--color-border);
  }
  .recently-viewed-section[hidden] {
    display: none;
  }
  .recently-viewed-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--color-text);
  }
  .recently-viewed-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
  }
  .recently-viewed-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 0;
  }
  .recently-viewed-item-image {
    display: block;
    aspect-ratio: 1;
    background: var(--color-bg-alt);
    overflow: hidden;
    border-radius: 4px;
  }
  .recently-viewed-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
  }
  .recently-viewed-item-image:hover img {
    transform: scale(1.05);
  }
  .recently-viewed-item-no-image {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    font-size: 12px;
    color: var(--color-text-light);
  }
  .recently-viewed-item-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
  }
  .recently-viewed-item-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .recently-viewed-item-title:hover {
    text-decoration: underline;
  }
  .recently-viewed-item-price {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
  }

  /* 最近浏览响应式 */
  @media (max-width: 768px) {
    .recently-viewed-list {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  }

  /* ===== S2 移动端粘性加购栏（仅移动端显示，桌面端隐藏） ===== */
  .sticky-add-to-cart {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 100;
    display: none;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.08);
    transform: translateY(100%);
    transition: transform 0.25s ease;
  }
  .sticky-add-to-cart.visible {
    transform: translateY(0);
  }
  .sticky-add-to-cart[hidden] {
    display: none !important;
  }
  .sticky-atc-image-btn {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    background: var(--color-bg-alt);
    overflow: hidden;
    cursor: pointer;
  }
  .sticky-atc-image-btn img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .sticky-atc-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
  }
  .sticky-atc-title {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .sticky-atc-price {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
  }
  .sticky-atc-btn {
    flex-shrink: 0;
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 600;
    min-width: 110px;
  }

  @media (max-width: 768px) {
    .sticky-add-to-cart {
      display: flex;
    }
  }

  /* ===== S41 P3: 年龄验证弹窗 ===== */
  .age-verify-modal {
    position: fixed;
    inset: 0;
    z-index: 1100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    opacity: 0;
    transition: opacity 0.2s ease;
  }
  .age-verify-modal.open {
    opacity: 1;
  }
  .age-verify-modal[hidden] {
    display: none !important;
  }
  .age-verify-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
  }
  .age-verify-dialog {
    position: relative;
    width: 100%;
    max-width: 420px;
    background: var(--color-bg, #fff);
    border-radius: 12px;
    padding: 32px 24px;
    text-align: center;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.3);
  }
  .age-verify-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #fef3c7;
    color: #d97706;
    margin-bottom: 16px;
  }
  .age-verify-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text, #111827);
    margin-bottom: 8px;
  }
  .age-verify-desc {
    font-size: 14px;
    color: var(--color-text-muted, #6b7280);
    margin-bottom: 24px;
    line-height: 1.5;
  }
  .age-verify-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  .age-verify-btn-confirm {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    background: var(--color-text, #111827);
    color: var(--color-bg, #fff);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s ease;
  }
  .age-verify-btn-confirm:hover {
    opacity: 0.9;
  }
  .age-verify-btn-deny {
    padding: 10px 24px;
    border: none;
    background: transparent;
    color: var(--color-text-muted, #6b7280);
    font-size: 13px;
    cursor: pointer;
    text-decoration: underline;
  }
  .age-verify-btn-deny:hover {
    color: var(--color-text, #111827);
  }

/* ===== ProductMediaGallery.astro ===== */
  .product-media-gallery {
    display: flex;
    flex-direction: row;
    gap: 16px;
    /* 允许在 product-detail 网格轨道内收缩，防止 min-content 撑爆轨道产生横向溢出 */
    min-width: 0;
  }
  .product-gallery-main {
    position: relative;
    flex: 1;
    aspect-ratio: 1 / 1;
    background: var(--color-bg-alt);
    overflow: hidden;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .product-gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .gallery-main-image-zoomable {
    cursor: zoom-in;
    transition: transform 0.3s ease;
  }
  .product-gallery-main:hover .gallery-main-image-zoomable {
    transform: scale(1.02);
  }
  .product-gallery-main:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
  }
  .gallery-zoom-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
    opacity: 0;
    transition:
      opacity 0.2s ease,
      background 0.2s ease;
    cursor: pointer;
    z-index: 2;
  }
  .product-gallery-main:hover .gallery-zoom-btn {
    opacity: 1;
  }
  .gallery-zoom-btn:hover {
    background: var(--color-bg);
  }
  .product-image-placeholder {
    color: var(--color-text-light);
    font-size: 14px;
  }
  .gallery-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
  }
  .gallery-nav:hover {
    background: var(--color-bg);
    box-shadow: var(--shadow-md);
  }
  .gallery-nav-prev {
    left: 12px;
  }
  .gallery-nav-prev .icon-chevron-right {
    transform: rotate(180deg);
  }
  .gallery-nav-next {
    right: 12px;
  }
  .gallery-counter {
    position: absolute;
    bottom: 12px;
    right: 12px;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 12px;
  }
  .product-gallery-thumbs {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 80px;
    flex-shrink: 0;
    overflow-y: auto;
    padding: 0;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
  }
  .gallery-thumb {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
    border: 2px solid transparent;
    border-radius: 4px;
    overflow: hidden;
    background: var(--color-bg-alt);
    transition: var(--transition);
    padding: 0;
    cursor: pointer;
  }
  .gallery-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .gallery-thumb:hover {
    border-color: var(--color-text-muted);
  }
  .gallery-thumb.active {
    border-color: var(--color-text);
  }
  /* 视频缩略图（预加载首帧作为封面）+ 播放角标 */
  .gallery-thumb-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: var(--color-bg-alt);
  }
  .gallery-thumb {
    position: relative;
  }
  .gallery-thumb-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
    pointer-events: none;
  }
  /* 主轴视频（原生播放器，铺满主图区） */
  .gallery-main-video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: var(--color-bg-alt);
    display: block;
  }
  /* 主轴嵌入视频（YouTube/Vimeo iframe，铺满主图区） */
  .gallery-main-iframe {
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
    background: var(--color-bg-alt);
  }
  /* Lightbox 视频 */
  .gallery-lightbox-video {
    max-width: 90vw;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 4px;
    transform: scale(0.9);
    transition: transform 0.3s ease;
    background: #000;
  }
  .gallery-lightbox.open .gallery-lightbox-video {
    transform: scale(1);
  }



  /* P-4：圆点指示器（移动端显示，桌面端隐藏） */
  .gallery-dots {
    display: none;
    justify-content: center;
    gap: 8px;
    padding: 8px 0;
  }
  .gallery-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-border);
    border: none;
    padding: 0;
    cursor: pointer;
    transition: background 0.2s ease;
  }
  .gallery-dot.active {
    background: var(--color-text);
  }
  .gallery-dot:hover {
    background: var(--color-text-muted);
  }

  @media (max-width: 768px) {
    .product-media-gallery {
      flex-direction: column;
    }
    .gallery-thumb {
      width: 52px;
      height: 52px;
    }
    .gallery-zoom-btn {
      opacity: 1;
    }
    /* P-4：移动端隐藏缩略图列表，显示圆点指示器 */
    .product-gallery-thumbs {
      display: none;
    }
    .gallery-dots {
      display: flex;
    }
  }

  /* Lightbox 全屏查看样式（is:global：元素由 JS 动态创建到 body） */
  .gallery-lightbox {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0, 0, 0, 0);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease;
  }
  .gallery-lightbox.open {
    background: rgba(0, 0, 0, 0.9);
  }
  .gallery-lightbox-image {
    max-width: 90vw;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 4px;
    transform: scale(0.9);
    transition: transform 0.3s ease;
  }
  .gallery-lightbox.open .gallery-lightbox-image {
    transform: scale(1);
  }
  .gallery-lightbox-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    font-size: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s ease;
  }
  .gallery-lightbox-close:hover {
    background: rgba(255, 255, 255, 0.3);
  }
  .gallery-lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    font-size: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s ease;
  }
  .gallery-lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.3);
  }
  .gallery-lightbox-prev {
    left: 20px;
  }
  .gallery-lightbox-next {
    right: 20px;
  }
  .gallery-lightbox-counter {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: #fff;
    font-size: 14px;
    background: rgba(0, 0, 0, 0.5);
    padding: 6px 16px;
    border-radius: 16px;
  }
  @media (max-width: 768px) {
    .gallery-lightbox-nav {
      width: 40px;
      height: 40px;
      font-size: 26px;
    }
    .gallery-lightbox-prev {
      left: 10px;
    }
    .gallery-lightbox-next {
      right: 10px;
    }
  }

/* ===== RelatedProducts.astro ===== */
  .related-products-section {
    margin: 48px 0;
  }

/* ===== ProductBuyButtons.astro ===== */
  .product-buy-buttons {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  .product-buy-price {
    font-size: 24px;
    font-weight: 600;
    color: var(--color-text);
  }
  .product-purchase-options {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 12px 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
  }
  .product-purchase-option-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
  }
  .purchase-option-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition, border-color 0.2s);
  }
  .purchase-option-item:hover {
    border-color: var(--color-text);
  }
  .purchase-option-item input[type="radio"] {
    margin: 0;
    accent-color: var(--color-primary, #2563eb);
  }
  .purchase-option-item:has(input[type="radio"]:checked) {
    border-color: var(--color-primary, #2563eb);
    background: var(--color-bg-alt);
  }
  .purchase-option-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
  }
  .purchase-option-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
  }
  .purchase-option-price {
    font-size: 13px;
    color: var(--color-text-muted);
  }
  .product-subscribe-plans {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  .product-subscribe-plans[hidden] {
    display: none;
  }
  .subscribe-plans-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  .subscribe-plan-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition, border-color 0.2s);
  }
  .subscribe-plan-item:hover {
    border-color: var(--color-text);
  }
  .subscribe-plan-item input[type="radio"] {
    margin: 4px 0 0;
    accent-color: var(--color-primary, #2563eb);
  }
  .subscribe-plan-item:has(input[type="radio"]:checked) {
    border-color: var(--color-primary, #2563eb);
    background: var(--color-bg-alt);
  }
  .subscribe-plan-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
  }
  .subscribe-plan-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
  }
  .subscribe-plan-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
  }
  .subscribe-plan-save {
    font-size: 12px;
    padding: 2px 6px;
    background: var(--color-success, #15803d);
    color: #fff;
    border-radius: 2px;
    white-space: nowrap;
  }
  .subscribe-plan-price {
    font-size: 13px;
    color: var(--color-text-muted);
  }
  .subscribe-plan-desc {
    font-size: 12px;
    color: var(--color-text-muted);
    line-height: 1.4;
  }
  .product-subscribe-actions {
    display: flex;
  }
  .product-subscribe-actions[hidden] {
    display: none;
  }
  .product-subscribe-actions .btn {
    flex: 1;
    padding: 14px 24px;
    font-size: 15px;
    font-weight: 500;
  }
  .product-subscribe-address-prompt {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 16px;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 4px;
  }
  .product-subscribe-address-prompt[hidden] {
    display: none;
  }
  .subscribe-address-title {
    margin: 0;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
  }
  .subscribe-address-desc {
    margin: 0;
    font-size: 13px;
    color: var(--color-text-muted);
  }
  .subscribe-address-link {
    align-self: flex-start;
    padding: 8px 16px;
    font-size: 13px;
  }
  .product-subscribe-msg {
    margin: 0;
    font-size: 13px;
    line-height: 1.5;
  }
  .product-subscribe-msg[hidden] {
    display: none;
  }
  .product-subscribe-msg.success {
    color: var(--color-success, #15803d);
  }
  .product-subscribe-msg.error {
    color: var(--color-danger);
  }
  .subscribe-view-link {
    margin-left: 6px;
    color: inherit;
    text-decoration: underline;
  }
  .product-actions[hidden] {
    display: none;
  }
  .product-buy-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  .product-option-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
  }
  .product-actions {
    display: flex;
    gap: 12px;
  }
  .product-actions .btn {
    flex: 1;
    padding: 14px 24px;
    font-size: 15px;
    font-weight: 500;
  }
  .product-low-stock {
    margin: 0;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-danger, #dc2626);
  }
  .product-low-stock[hidden] {
    display: none;
  }
  .product-estimated-delivery {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 0;
    font-size: 13px;
    color: var(--color-text-muted);
  }
  .product-estimated-delivery svg {
    flex-shrink: 0;
    color: var(--color-text-muted);
  }
  .product-quick-checkout {
    display: flex;
    gap: 8px;
  }
  .quick-checkout-btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 44px;
    padding: 0 12px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    background: var(--color-bg);
    cursor: pointer;
    transition: var(--transition, border-color 0.2s);
  }
  .quick-checkout-btn:hover {
    border-color: var(--color-text);
  }
  .quick-checkout-btn svg {
    height: 24px;
    width: auto;
    max-width: 100%;
  }
  .quick-checkout-msg {
    margin: 0;
    font-size: 12px;
    color: var(--color-text-muted);
    text-align: center;
  }
  .quick-checkout-msg[hidden] {
    display: none;
  }
  .product-trust-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 6px;
    padding: 12px 0;
    margin-top: 8px;
    border-top: 1px solid var(--color-border);
    font-size: 12px;
    color: var(--color-text-muted);
  }
  .product-trust-badge svg {
    flex-shrink: 0;
    color: var(--color-success, #15803d);
  }
  .product-trust-badge-sep {
    color: var(--color-text-light);
  }
  .product-unavailable {
    font-size: 14px;
    color: var(--color-danger);
    text-align: center;
  }
  .product-back-in-stock-action {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 16px;
    margin-top: 12px;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 4px;
  }
  .product-back-in-stock-hint {
    margin: 0;
    font-size: 13px;
    color: var(--color-text-muted);
    text-align: center;
  }
  .product-back-in-stock-form {
    display: flex;
    gap: 8px;
  }
  .product-back-in-stock-input {
    flex: 1;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 14px;
  }
  .product-back-in-stock-input:focus {
    outline: none;
    border-color: var(--color-text);
  }
  .product-back-in-stock-btn {
    white-space: nowrap;
  }
  .product-back-in-stock-btn:disabled {
    cursor: not-allowed;
    opacity: 0.6;
  }
  .product-back-in-stock-msg {
    margin: 0;
    font-size: 13px;
    text-align: center;
  }
  .product-back-in-stock-msg.success {
    color: var(--color-success, #15803d);
  }
  .product-back-in-stock-msg.error {
    color: var(--color-danger);
  }
  .product-wishlist-action {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: stretch;
  }
  /* 限定在详情页 .product-buy-buttons 容器内,避免顶层规则污染其他位置 */
  .product-buy-buttons .product-wishlist-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 500;
  }
  .product-buy-buttons .product-wishlist-btn:disabled {
    cursor: not-allowed;
    opacity: 0.6;
  }
  .product-wishlist-msg {
    font-size: 13px;
    text-align: center;
  }
  .product-wishlist-msg.success {
    color: var(--color-success, #15803d);
  }
  .product-wishlist-msg.error {
    color: var(--color-danger);
  }
  .product-wishlist-link {
    margin-left: 6px;
    color: inherit;
    text-decoration: underline;
  }
  .wishlist-register-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
  }
  .wishlist-register-modal[hidden] {
    display: none;
  }
  .wishlist-register-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
  }
  .wishlist-register-modal-dialog {
    position: relative;
    width: 100%;
    max-width: 400px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 24px;
    background: var(--color-bg, #fff);
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  }
  .wishlist-register-modal-dialog h3 {
    margin: 0 0 8px;
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
  }
  .wishlist-register-modal-desc {
    margin: 0 0 16px;
    font-size: 14px;
    color: var(--color-text-muted);
  }
  .wishlist-register-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .wishlist-register-input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 14px;
    box-sizing: border-box;
  }
  .wishlist-register-input:focus {
    outline: none;
    border-color: var(--color-text);
  }
  .wishlist-register-actions {
    display: flex;
    gap: 8px;
    margin-top: 4px;
  }
  .wishlist-register-actions .btn {
    flex: 1;
    padding: 10px 16px;
    font-size: 14px;
    font-weight: 500;
  }
  .wishlist-register-error {
    margin: 0;
    font-size: 13px;
    color: var(--color-danger);
  }
  .wishlist-register-error[hidden] {
    display: none;
  }
  @media (max-width: 480px) {
    .wishlist-register-modal {
      padding: 12px;
    }
    .wishlist-register-modal-dialog {
      padding: 20px 16px;
    }
    .wishlist-register-actions {
      flex-direction: column-reverse;
    }
    .wishlist-register-actions .btn {
      width: 100%;
    }
  }

/* ===== ProductReviews.astro ===== */
/* 评论区块 */
.reviews-section {
  margin: 48px 0;
}

/* 区块标题（复用全局 .section-header 样式） */
.reviews-section .section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

/* S13 P1-26 写评论按钮 / 登录链接 */
.reviews-write-toggle,
.reviews-login-link {
  flex-shrink: 0;
}

/* S13 P1-26 写评论表单 */
.reviews-write-form {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 32px;
}
.reviews-write-form-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text);
}
.reviews-write-verified-note {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

/* 表单字段 */
.reviews-write-field {
  margin-bottom: 16px;
}
.reviews-write-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}
.reviews-write-input,
.reviews-write-textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.15s ease;
}
.reviews-write-input:focus,
.reviews-write-textarea:focus {
  outline: none;
  border-color: var(--color-primary, #1a73e8);
}
.reviews-write-textarea {
  resize: vertical;
  min-height: 80px;
}

/* 星级选择器 */
.reviews-write-stars {
  display: flex;
  gap: 4px;
}
.reviews-write-star {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 28px;
  color: var(--color-border);
  padding: 4px;
  line-height: 1;
  transition:
    color 0.15s ease,
    transform 0.1s ease;
}
.reviews-write-star:hover {
  transform: scale(1.1);
}
.reviews-write-star.active {
  color: #f5a623;
}
.reviews-write-star:hover,
.reviews-write-star:focus-visible {
  color: #f5a623;
}

/* 错误提示 */
.reviews-write-error {
  display: block;
  font-size: 12px;
  color: var(--color-error, #e53935);
  margin-top: 4px;
}

/* 评论图片上传 */
.reviews-write-media {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: flex-start;
}
.reviews-write-media-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.reviews-write-media-add {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  width: 72px;
  height: 72px;
  padding: 0;
  border: 1px dashed var(--color-border);
  border-radius: 4px;
  background: var(--color-bg-alt);
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 11px;
  transition:
    border-color 0.15s ease,
    color 0.15s ease;
}
.reviews-write-media-add:hover:not(:disabled) {
  border-color: var(--color-text);
  color: var(--color-text);
}
.reviews-write-media-add:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.reviews-write-media-thumb {
  position: relative;
  width: 72px;
  height: 72px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  overflow: hidden;
}
.reviews-write-media-thumb img,
.reviews-write-media-thumb video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.reviews-write-media-thumb-uploading {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  background: var(--color-bg-alt);
  color: var(--color-text-muted);
  font-size: 11px;
}
.reviews-write-media-remove {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 18px;
  height: 18px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.reviews-write-media-remove:hover {
  background: rgba(0, 0, 0, 0.85);
}

/* 操作按钮 */
.reviews-write-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

/* 反馈消息（成功/失败） */
.reviews-write-feedback {
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 4px;
  font-size: 13px;
}
.reviews-write-feedback.success {
  background: rgba(76, 175, 80, 0.1);
  color: var(--color-success, #4caf50);
  border: 1px solid var(--color-success, #4caf50);
}
.reviews-write-feedback.error {
  background: rgba(229, 57, 53, 0.1);
  color: var(--color-error, #e53935);
  border: 1px solid var(--color-error, #e53935);
}

/* 评论布局：概览 + 列表 */
.reviews-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
}

/* 评分概览 */
.reviews-summary {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 24px;
  background: var(--color-bg-alt);
  border-radius: 8px;
  height: fit-content;
}
.reviews-average {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.reviews-average-number {
  font-size: 40px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
}
.reviews-average-stars {
  color: #f5a623;
  font-size: 16px;
  letter-spacing: 2px;
}
.reviews-average-count {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* 星级分布 */
.reviews-distribution {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.reviews-distribution-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--color-text-muted);
}
.reviews-distribution-star {
  width: 50px;
  flex-shrink: 0;
}
.reviews-distribution-bar {
  flex: 1;
  height: 6px;
  background: var(--color-border);
  border-radius: 3px;
  overflow: hidden;
}
.reviews-distribution-fill {
  height: 100%;
  background: #f5a623;
  border-radius: 3px;
  transition: width 0.3s ease;
}
.reviews-distribution-count {
  width: 24px;
  text-align: right;
  flex-shrink: 0;
}

/* 评论列表 */
.reviews-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.review-item {
  padding-bottom: 32px;
  border-bottom: 1px solid var(--color-border);
}
.review-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.review-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.review-author {
  display: flex;
  align-items: center;
  gap: 10px;
}
.review-author-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}
.review-verified {
  font-size: 11px;
  color: var(--color-success);
  border: 1px solid var(--color-success);
  border-radius: 3px;
  padding: 1px 6px;
}
.review-date {
  font-size: 13px;
  color: var(--color-text-light);
}
.review-rating {
  margin-bottom: 8px;
}
.review-stars {
  color: #f5a623;
  font-size: 14px;
  letter-spacing: 2px;
}
.review-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-text);
}
.review-content {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-muted);
}
.review-helpful {
  margin-top: 10px;
  font-size: 12px;
  color: var(--color-text-light);
}

/* ===== 商家回复 ===== */
.review-reply {
  margin-top: 12px;
  padding: 10px 12px;
  border-left: 3px solid var(--color-primary, #1a73e8);
  background: var(--color-bg-alt);
  border-radius: 4px;
}
.review-reply-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary, #1a73e8);
  margin-bottom: 4px;
}
.review-reply-content {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-muted);
}

/* ===== 追评 ===== */
.review-followups {
  margin-top: 16px;
  padding-left: 16px;
  border-left: 2px dashed var(--color-border);
}
.review-followups-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}
.review-followup {
  padding: 12px;
  margin-bottom: 12px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 6px;
}
.review-followup:last-child {
  margin-bottom: 0;
}
.review-followup-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}
.review-followup-badge {
  font-size: 11px;
  color: var(--color-primary, #1a73e8);
  border: 1px solid var(--color-primary, #1a73e8);
  border-radius: 3px;
  padding: 1px 6px;
}
.review-followup-date {
  margin-left: auto;
  font-size: 12px;
  color: var(--color-text-light);
}
.review-followup-content {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-muted);
}

/* ===== S42：评论媒体附件 ===== */
.review-media-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}
.review-media-thumb {
  position: relative;
  width: 72px;
  height: 72px;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-bg-alt);
  cursor: pointer;
  overflow: hidden;
  transition: border-color 0.15s ease;
}
.review-media-thumb:hover {
  border-color: var(--color-text);
}
.review-media-thumb img,
.review-media-thumb video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.review-media-play-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.4);
  color: #fff;
  pointer-events: none;
}

/* ===== S42：评论媒体 Lightbox ===== */
.review-media-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.review-media-lightbox[hidden] {
  display: none;
}
.review-media-lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
}
.review-media-lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.review-media-lightbox-content img,
.review-media-lightbox-content video {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 4px;
}
.review-media-lightbox-close,
.review-media-lightbox-prev,
.review-media-lightbox-next {
  position: absolute;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  cursor: pointer;
  transition: background 0.15s ease;
}
.review-media-lightbox-close:hover,
.review-media-lightbox-prev:hover,
.review-media-lightbox-next:hover {
  background: rgba(255, 255, 255, 0.3);
}
.review-media-lightbox-close {
  top: 16px;
  right: 16px;
}
.review-media-lightbox-prev {
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
}
.review-media-lightbox-next {
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
}

/* 响应式：小屏单列 */
@media (max-width: 768px) {
  .reviews-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

/* ===== ProductVariantPicker.astro ===== */
/* 变体选择器容器 */
.product-variant-picker {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* S40 P3：变体 SKU 显示 */
.product-variant-sku {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-text-muted);
}
.product-variant-sku-label {
  font-weight: 500;
}
.product-variant-sku-value {
  font-family: monospace;
  font-size: 12px;
}

/* 单个选项组（如"颜色"一组、"尺码"一组） */
.product-option {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.product-option-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.product-option-label [data-option-selected] {
  font-weight: 400;
  color: var(--color-text-muted);
}

/* 选项值按钮组 */
.product-option-values {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.product-option-value {
  min-width: 44px;
  padding: 8px 16px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 14px;
  transition: var(--transition);
}
.product-option-value:hover:not(:disabled) {
  border-color: var(--color-text);
}
.product-option-value[aria-pressed="true"] {
  border-color: var(--color-text);
  background: var(--color-text);
  color: var(--color-bg);
}
.product-option-value:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  text-decoration: line-through;
}

/* S13 P1-24：颜色色块预览样式（单层圆形色块 + 选中环） */
.product-option-swatch {
  width: 32px;
  height: 32px;
  min-width: 0;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background-color: var(--swatch-color, var(--color-bg));
  overflow: hidden;
}
.product-option-swatch:hover:not(:disabled) {
  border-color: var(--color-text);
}
.product-option-swatch[aria-pressed="true"] {
  border-color: var(--color-accent, var(--color-text));
  box-shadow: 0 0 0 2px var(--color-accent, var(--color-text));
}
.product-option-swatch:disabled {
  text-decoration: none;
}

/* P1-38：不可用变体视觉反馈（灰化 + 划线，disabled 属性选择器覆盖 :disabled 边界值） */
.product-option-value[disabled],
.product-option-swatch[disabled] {
  opacity: 0.4;
  position: relative;
  cursor: not-allowed;
}
.product-option-value[disabled]::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 120%;
  height: 1px;
  background: currentColor;
  transform: translate(-50%, -50%) rotate(-45deg);
}

/* S8：尺码指南链接（在选项标签右侧） */
.product-option-size-guide {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  font-size: 13px;
  text-decoration: underline;
  cursor: pointer;
  transition: var(--transition);
}
.product-option-size-guide:hover {
  color: var(--color-text);
}

/* S8：尺码指南弹窗 */
.size-guide-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  opacity: 0;
  transition: opacity 0.2s ease;
}
.size-guide-modal.open {
  opacity: 1;
}
.size-guide-modal[hidden] {
  display: none !important;
}
.size-guide-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
}
.size-guide-dialog {
  position: relative;
  width: 100%;
  max-width: 560px;
  max-height: 85vh;
  overflow-y: auto;
  background: var(--color-bg);
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.2);
}
.size-guide-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.size-guide-header h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
}
.size-guide-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  border-radius: 4px;
  transition: var(--transition);
}
.size-guide-close:hover {
  background: var(--color-bg-alt);
  color: var(--color-text);
}
.size-guide-desc {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}
.size-guide-table-wrap {
  overflow-x: auto;
  margin-bottom: 20px;
}
.size-guide-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.size-guide-table th,
.size-guide-table td {
  padding: 10px 12px;
  text-align: center;
  border: 1px solid var(--color-border);
}
.size-guide-table th {
  background: var(--color-bg-alt);
  font-weight: 600;
  color: var(--color-text);
}
.size-guide-table td {
  color: var(--color-text-muted);
}
.size-guide-table td:first-child {
  font-weight: 600;
  color: var(--color-text);
}
.size-guide-measure h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text);
}
.size-guide-measure ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.size-guide-measure li {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.6;
}
.size-guide-measure strong {
  color: var(--color-text);
}

/* 移动端弹窗优化 */
@media (max-width: 768px) {
  .size-guide-dialog {
    padding: 16px;
    max-height: 90vh;
  }
  .size-guide-table th,
  .size-guide-table td {
    padding: 8px 6px;
    font-size: 12px;
  }
}

/* ===== P1-16：评分分布柱状图 ===== */
.reviews-distribution {
  display: block;
  background: var(--color-bg-alt);
  border-radius: 8px;
  padding: 20px 24px;
  margin-bottom: 24px;
}
.reviews-distribution-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.reviews-distribution-avg {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
}
.reviews-distribution-stars {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.reviews-distribution-total {
  color: var(--color-text-muted);
  font-size: 13px;
}
.reviews-distribution-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.reviews-distribution-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
}
.reviews-distribution-stars-label {
  min-width: 36px;
  color: var(--color-text);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 2px;
}
.reviews-distribution-stars-label svg {
  width: 12px;
  height: 12px;
  fill: var(--color-accent);
}
.reviews-distribution-track {
  flex: 1;
  height: 8px;
  background: var(--color-border);
  border-radius: 4px;
  overflow: hidden;
}
.reviews-distribution-fill {
  height: 100%;
  background: var(--color-accent);
  border-radius: 4px;
  transition: width 0.4s ease;
}
.reviews-distribution-count {
  min-width: 32px;
  text-align: right;
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
}

/* ===== P1-17：紧迫感元素 ===== */
.product-urgency {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px 12px;
  margin: 12px 0;
  background: rgba(229, 57, 70, 0.06);
  border: 1px solid rgba(229, 57, 70, 0.18);
  border-radius: 6px;
  font-size: 13px;
}
.product-urgency-item {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #c62828;
  line-height: 1.4;
}
.product-urgency-item svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}
.product-urgency-item[hidden] {
  display: none !important;
}
.product-urgency-pulse {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #e63946;
  margin-right: 4px;
  animation: urgency-pulse 1.6s ease-in-out infinite;
}
@keyframes urgency-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}
@media (prefers-reduced-motion: reduce) {
  .product-urgency-pulse {
    animation: none;
  }
}