/**
 * DealHub - Deal Page Component (Groupon Style v4.0)
 * Layer: components
 * 
 * 重构依据: Groupon Deal Page + DealHub_CSS_Layer_Guide
 * 
 * 核心改动:
 * 1. 页面边界: .deal-page[data-component="deal-page"]
 * 2. 状态驱动: 全部使用 data-state 属性
 * 3. Tabs 单一真相源: data-state="active"
 * 4. Sidebar: 纯 CSS sticky
 * 5. Tokens: --dh-deal-* 前缀
 * 6. 选择器: 最大 2 层，使用 :where() 降低特异性
 * 7. 完全匹配 Groupon 视觉风格
 * 
 * @package DealHub
 * @since 2.0.0
 */

@layer components {
    /* ==========================================================================
       1) Scope / Boundary - 组件边界
       ========================================================================== */
    
    :where(.deal-page) {
        /* Primary Colors (Groupon Style) */
        --dh-deal-green: #00a524;
        --dh-deal-green-hover: #008a1e;
        --dh-deal-green-light: #e8f6ee;
        
        /* Pink/Magenta (Groupon Style) */
        --dh-deal-pink: #c31162;
        --dh-deal-pink-light: #fef2f6;
        
        /* Purple (Promo) */
        --dh-deal-purple: #7b2cbf;
        --dh-deal-purple-bg: #f4ebff;
        
        /* Red (Sale Price) */
        --dh-deal-red: #d2232a;
        --dh-deal-red-light: #ffebee;
        
        /* Blue (Selection) */
        --dh-deal-blue: #2f80ed;
        --dh-deal-blue-light: rgba(47, 128, 237, 0.12);
        
        /* Text Colors */
        --dh-deal-text-dark: #1f1f1f;
        --dh-deal-text-primary: #111827;
        --dh-deal-text-medium: #5c5c5c;
        --dh-deal-text-light: #8c8c8c;
        --dh-deal-text-muted: #6b7280;
        
        /* Backgrounds */
        --dh-deal-bg-white: #ffffff;
        --dh-deal-bg-gray: #f7f7f7;
        --dh-deal-bg-gray-light: #fafafa;
        
        /* Borders */
        --dh-deal-border: #e5e5e5;
        --dh-deal-border-light: #eeeeee;
        
        /* Star rating */
        --dh-deal-star: #f59e0b;
        
        /* Border Radius */
        --dh-deal-radius-sm: 8px;
        --dh-deal-radius-md: 10px;
        --dh-deal-radius-lg: 12px;
        --dh-deal-radius-xl: 16px;
        --dh-deal-radius-full: 9999px;
        
        /* Base styles */
        background: var(--dh-deal-bg-white);
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
        color: var(--dh-deal-text-primary);
        line-height: 1.5;
    }
    
    /* ==========================================================================
       2) Structure - 结构布局
       ========================================================================== */
    
    :where(.deal-page) .deal-container {
        max-width: var(--dh-container-max, 1400px);
        margin: 0 auto;
        padding: 0 var(--dh-container-padding, 24px);
    }
    
    /* Main Layout: Content + Sidebar (Groupon Style) */
    :where(.deal-page) .deal-main-layout {
        display: grid;
        grid-template-columns: minmax(0, 1fr) 400px;
        gap: 48px;
        padding-bottom: 60px;
        align-items: start;
    }
    
    :where(.deal-page) .deal-content-col {
        min-width: 0;
    }
    
    :where(.deal-page) .deal-sidebar-col {
        min-width: 0;
        width: 100%;
    }
    
    /* ==========================================================================
       3) Breadcrumbs (Groupon Style)
       ========================================================================== */
    
    :where(.deal-page) .deal-breadcrumbs {
        padding: 16px 0 24px;
        font-size: 13px;
    }
    
    :where(.deal-page) .breadcrumb-nav {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
    }
    
    /* 面包屑链接 - 灰黑色，不要绿色 */
    :where(.deal-page) .deal-breadcrumb-link {
        color: #707070;
        text-decoration: none;
        font-weight: 400;
    }
    
    :where(.deal-page) .deal-breadcrumb-link:hover {
        text-decoration: underline;
        color: #1a1a1a;
    }
    
    :where(.deal-page) .deal-breadcrumb-sep {
        margin: 0 8px;
        color: #707070;
    }
    
    :where(.deal-page) .deal-breadcrumb-current {
        color: #707070;
    }
    
    /* ==========================================================================
       4) Header (Groupon Style)
       ========================================================================== */
    
    :where(.deal-page) .deal-header {
        padding: 0 0 20px;
    }
    
    :where(.deal-page) .deal-title {
        font-size: 20px;
        font-weight: 700;
        margin: 0 0 8px;
        line-height: 1.35;
        color: var(--dh-deal-text-primary);
    }
    
    :where(.deal-page) .deal-meta-row {
        display: flex;
        flex-wrap: nowrap;
        align-items: center;
        gap: 16px;
        font-size: 14px;
        margin-bottom: 8px;
    }
    
    /* Store Info */
    :where(.deal-page) .deal-store-info {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        flex-shrink: 0;
    }
    
    :where(.deal-page) .deal-store-icon {
        color: var(--dh-deal-text-light);
        flex-shrink: 0;
    }
    
    :where(.deal-page) .deal-store-link {
        color: var(--dh-deal-text-medium);
        text-decoration: none;
        white-space: nowrap;
    }
    
    :where(.deal-page) .deal-store-link:hover {
        text-decoration: underline;
    }
    
    /* Location Info */
    :where(.deal-page) .deal-location-info {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        flex-shrink: 0;
    }
    
    :where(.deal-page) .deal-location-icon {
        color: var(--dh-deal-text-light);
        flex-shrink: 0;
    }
    
    :where(.deal-page) .deal-address {
        color: var(--dh-deal-text-medium);
        white-space: nowrap;
    }
    
    /* Rating (Groupon Style) */
    :where(.deal-page) .deal-rating {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        flex-shrink: 0;
    }
    
    :where(.deal-page) .deal-rating-star-icon {
        color: var(--dh-deal-star);
    }
    
    :where(.deal-page) .deal-rating-score {
        font-weight: 700;
        color: var(--dh-deal-text-dark);
    }
    
    :where(.deal-page) .deal-rating-count {
        color: var(--dh-deal-text-medium);
        text-decoration: underline;
    }
    
    :where(.deal-page) .deal-rating-count:hover {
        color: var(--dh-deal-text-dark);
    }
    
    /* Badges (Groupon Style) */
    :where(.deal-page) .deal-badges {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-top: 8px;
    }
    
    :where(.deal-page) .deal-badge {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        padding: 6px 12px;
        border-radius: var(--dh-deal-radius-sm);
        font-size: 12px;
        font-weight: 600;
    }
    
    :where(.deal-page) .deal-badge[data-variant="best"] {
        background: linear-gradient(135deg, #ffd700, #ffb300);
        color: #2b2521;
    }
    
    :where(.deal-page) .deal-badge[data-variant="bought"] {
        background: var(--dh-deal-green-light);
        color: var(--dh-deal-green);
    }
    
    :where(.deal-page) .deal-badge[data-variant="trending"] {
        background: linear-gradient(135deg, #e91e63, #9c27b0);
        color: #fff;
    }
    
    /* ==========================================================================
       5) Gallery (Groupon Style)
       ========================================================================== */
    
    :where(.deal-page) .deal-gallery {
        margin-bottom: 24px;
        border-radius: var(--dh-deal-radius-lg);
        overflow: hidden;
        background: var(--dh-deal-bg-gray-light);
        width: 100%;
    }
    
    :where(.deal-page) .deal-gallery-main {
        position: relative;
        width: 100%;
        aspect-ratio: 4/3;
        overflow: hidden;
        cursor: pointer;
        background: #f0f0f0;
    }
    
    :where(.deal-page) .deal-gallery-main-img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.3s ease;
    }
    
    :where(.deal-page) .deal-gallery-main:hover .deal-gallery-main-img {
        transform: scale(1.02);
    }
    
    /* Gallery Actions (Groupon Style - Top Right) */
    :where(.deal-page) .deal-gallery-actions {
        position: absolute;
        top: 16px;
        right: 16px;
        display: flex;
        gap: 8px;
    }
    
    :where(.deal-page) .gallery-action {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.95);
        border: none;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        transition: all 0.2s ease;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }
    
    :where(.deal-page) .gallery-action:hover {
        background: #fff;
        transform: scale(1.05);
    }
    
    :where(.deal-page) .gallery-action svg {
        color: var(--dh-deal-text-dark);
    }
    
    /* Thumbnail Bar (Groupon Style) - 缩略图固定一行 */
    :where(.deal-page) .deal-thumbs-wrapper {
        padding: 12px 0 0;
        background: transparent;
        width: 100%;
    }
    
    :where(.deal-page) .deal-thumbs-viewport {
        overflow: hidden;
        width: 100%;
    }
    
    :where(.deal-page) .deal-thumbs-track {
        display: flex;
        flex-wrap: nowrap;
        gap: 8px;
        width: 100%;
    }
    
    :where(.deal-page) .deal-thumb {
        flex: 1 1 0;
        min-width: 0;
        aspect-ratio: 4/3;
        border-radius: var(--dh-deal-radius-sm);
        overflow: hidden;
        border: 2px solid transparent;
        cursor: pointer;
        background: var(--dh-deal-bg-gray-light);
        padding: 0;
        transition: border-color 0.2s ease;
    }
    
    :where(.deal-page) .deal-thumb:hover {
        border-color: rgba(0, 165, 36, 0.4);
    }
    
    :where(.deal-page) .deal-thumb[data-state="active"] {
        border-color: var(--dh-deal-green);
    }
    
    :where(.deal-page) .deal-thumb-img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    
    /* More Images Button - 显示背景图 + 数字覆盖层 */
    :where(.deal-page) .deal-thumb-more {
        position: relative;
        display: flex;
        align-items: center;
        justify-content: center;
        overflow: hidden;
    }
    
    :where(.deal-page) .deal-thumb-more::before {
        content: '';
        position: absolute;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 1;
    }
    
    :where(.deal-page) .deal-thumb-more .deal-thumb-img {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        z-index: 0;
    }
    
    :where(.deal-page) .thumb-more-count {
        position: relative;
        z-index: 2;
        font-size: 13px;
        font-weight: 600;
        text-align: center;
        color: #fff;
    }
    
    /* ==========================================================================
       6) Tabs (Groupon Style)
       ========================================================================== */
    
    :where(.deal-page) [data-component="tabs"] {
        margin-bottom: 0;
    }
    
    :where(.deal-page) .deal-tabs-nav {
        display: flex;
        gap: 0;
        border-bottom: 1px solid var(--dh-deal-border);
        position: sticky;
        top: 0;
        background: var(--dh-deal-bg-white);
        z-index: 100;
    }
    
    :where(.deal-page) .deal-tab-link {
        padding: 16px 24px;
        background: none;
        border: none;
        font-size: 14px;
        font-weight: 600;
        color: var(--dh-deal-text-medium);
        cursor: pointer;
        position: relative;
        text-decoration: none;
        transition: color 0.2s ease;
        white-space: nowrap;
    }
    
    :where(.deal-page) .deal-tab-link:hover {
        color: var(--dh-deal-text-dark);
    }
    
    :where(.deal-page) [data-tab][data-state="active"] {
        color: var(--dh-deal-text-dark);
    }
    
    :where(.deal-page) [data-tab][data-state="active"]::after {
        content: '';
        position: absolute;
        bottom: -1px;
        left: 0;
        right: 0;
        height: 2px;
        background: var(--dh-deal-text-dark);
    }
    
    /* ==========================================================================
       7) Content Sections (Groupon Style)
       ========================================================================== */
    
    :where(.deal-page) .deal-section {
        padding: 24px 0;
        border-bottom: 1px solid var(--dh-deal-border-light);
    }
    
    :where(.deal-page) .deal-section:last-child {
        border-bottom: none;
    }
    
    :where(.deal-page) .section-title {
        font-size: 18px;
        font-weight: 700;
        margin: 0 0 16px;
        color: var(--dh-deal-text-dark);
    }
    
    :where(.deal-page) .section-intro {
        margin-bottom: 16px;
    }
    
    :where(.deal-page) .lead-text {
        font-size: 15px;
        color: var(--dh-deal-text-medium);
        margin: 0;
        line-height: 1.6;
    }
    
    :where(.deal-page) .section-divider {
        border: none;
        border-top: 1px solid var(--dh-deal-border-light);
        margin: 20px 0;
    }
    
    :where(.deal-page) .deal-description {
        font-size: 15px;
        color: var(--dh-deal-text-dark);
        line-height: 1.7;
    }
    
    :where(.deal-page) .deal-description p {
        margin: 0 0 16px;
    }
    
    /* What We Offer (Groupon Style) */
    :where(.deal-page) .what-we-offer {
        margin-top: 24px;
    }
    
    :where(.deal-page) .offer-list {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    
    :where(.deal-page) .offer-item {
        display: flex;
        align-items: flex-start;
        gap: 8px;
        padding: 6px 0;
        font-size: 14px;
        color: var(--dh-deal-text-dark);
    }
    
    :where(.deal-page) .offer-bullet {
        color: var(--dh-deal-text-medium);
    }
    
    /* Why Grab Offer */
    :where(.deal-page) .why-grab-offer {
        margin-top: 24px;
    }
    
    :where(.deal-page) .why-content {
        font-size: 14px;
        color: var(--dh-deal-text-dark);
        line-height: 1.7;
    }
    
    /* Fine Print (Need To Know) */
    :where(.deal-page) .fine-print {
        font-size: 13px;
        color: var(--dh-deal-text-medium);
        line-height: 1.7;
    }
    
    :where(.deal-page) .fine-print-note {
        margin-top: 16px;
        padding-top: 16px;
        border-top: 1px solid var(--dh-deal-border-light);
        font-style: italic;
    }
    
    /* ==========================================================================
       Location Section - Map & Card (Groupon Style)
       ========================================================================== */
    
    /* Map Container */
    :where(.deal-page) .location-map-container {
        margin-bottom: 16px;
        border-radius: var(--dh-deal-radius-lg);
        overflow: hidden;
        border: 1px solid var(--dh-deal-border);
    }
    
    :where(.deal-page) .location-map {
        position: relative;
        width: 100%;
        height: 320px;
        background: var(--dh-deal-bg-gray-light);
    }
    
    /* 静态地图图片 - 作为后备/加载占位 */
    :where(.deal-page) .location-map-static {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        z-index: 1;
    }
    
    /* 当Leaflet加载后隐藏静态地图 */
    :where(.deal-page) .location-map.leaflet-container .location-map-static {
        display: none;
    }
    
    /* 占位地图样式（无坐标时） */
    :where(.deal-page) .location-map-placeholder {
        display: flex;
        align-items: center;
        justify-content: center;
        background: linear-gradient(135deg, #f5f5f5 0%, #e0e0e0 100%);
    }
    
    :where(.deal-page) .map-placeholder-content {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 8px;
        color: var(--dh-deal-text-light);
    }
    
    :where(.deal-page) .map-placeholder-content svg {
        opacity: 0.5;
    }
    
    :where(.deal-page) .map-placeholder-content span {
        font-size: 14px;
    }
    
    :where(.deal-page) .map-attribution {
        padding: 8px 12px;
        font-size: 11px;
        color: var(--dh-deal-text-light);
        background: var(--dh-deal-bg-white);
        text-align: right;
    }
    
    :where(.deal-page) .map-attribution a {
        color: var(--dh-deal-text-medium);
        text-decoration: none;
    }
    
    :where(.deal-page) .map-attribution a:hover {
        text-decoration: underline;
    }
    
    /* Custom Map Marker */
    :where(.deal-page) .deal-map-marker {
        background: none;
        border: none;
    }
    
    :where(.deal-page) .deal-map-marker .marker-pin {
        filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
    }
    
    /* Location Card */
    :where(.deal-page) .location-card {
        background: var(--dh-deal-bg-white);
        border: 1px solid var(--dh-deal-border);
        border-radius: var(--dh-deal-radius-lg);
        overflow: hidden;
    }
    
    :where(.deal-page) .location-card-content {
        display: flex;
        justify-content: space-between;
        align-items: flex-start;
        padding: 16px;
        gap: 16px;
    }
    
    :where(.deal-page) .location-info {
        flex: 1;
        min-width: 0;
    }
    
    :where(.deal-page) .location-name {
        font-size: 16px;
        font-weight: 700;
        margin: 0 0 4px;
        color: var(--dh-deal-text-dark);
    }
    
    :where(.deal-page) .location-address {
        font-size: 14px;
        color: var(--dh-deal-text-medium);
        margin: 0 0 8px;
    }
    
    :where(.deal-page) .location-status {
        display: flex;
        align-items: center;
        gap: 6px;
        font-size: 13px;
    }
    
    :where(.deal-page) .location-status .status-icon {
        flex-shrink: 0;
    }
    
    :where(.deal-page) .location-status[data-state="open"] .status-text {
        color: var(--dh-deal-green);
        font-weight: 600;
    }
    
    :where(.deal-page) .location-status[data-state="open"] .status-icon {
        color: var(--dh-deal-green);
    }
    
    :where(.deal-page) .location-status[data-state="closed"] .status-text {
        color: #dc2626;
        font-weight: 600;
    }
    
    :where(.deal-page) .location-status[data-state="closed"] .status-icon {
        color: #dc2626;
    }
    
    :where(.deal-page) .location-status .status-opens {
        color: var(--dh-deal-text-light);
    }
    
    :where(.deal-page) .location-distance {
        display: flex;
        align-items: center;
        gap: 4px;
        font-size: 14px;
        color: var(--dh-deal-text-medium);
        white-space: nowrap;
        flex-shrink: 0;
    }
    
    :where(.deal-page) .location-distance .distance-icon {
        color: var(--dh-deal-text-light);
    }
    
    :where(.deal-page) .location-actions {
        padding: 12px 16px;
        border-top: 1px solid var(--dh-deal-border);
    }
    
    :where(.deal-page) .location-call-btn {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 10px 20px;
        border: 1px solid var(--dh-deal-border);
        border-radius: var(--dh-deal-radius-full);
        background: var(--dh-deal-bg-white);
        color: var(--dh-deal-text-dark);
        font-size: 14px;
        font-weight: 500;
        text-decoration: none;
        transition: all 0.15s ease;
    }
    
    :where(.deal-page) .location-call-btn:hover {
        background: var(--dh-deal-bg-gray-light);
        border-color: var(--dh-deal-text-light);
    }
    
    /* Reviews Section (Groupon Style) - Temporarily Hidden */
    :where(.deal-page) [data-section="reviews"] {
        display: none;
    }
    
    :where(.deal-page) .reviews-summary {
        margin-bottom: 20px;
    }
    
    :where(.deal-page) .reviews-score {
        display: flex;
        align-items: center;
        gap: 12px;
    }
    
    :where(.deal-page) .score-value {
        font-size: 36px;
        font-weight: 700;
        color: var(--dh-deal-text-dark);
    }
    
    :where(.deal-page) .score-stars {
        display: flex;
        gap: 2px;
    }
    
    :where(.deal-page) .reviews-list {
        display: flex;
        flex-direction: column;
        gap: 16px;
    }
    
    :where(.deal-page) .review-card {
        padding: 16px;
        background: var(--dh-deal-bg-gray-light);
        border-radius: var(--dh-deal-radius-md);
    }
    
    :where(.deal-page) .review-header {
        margin-bottom: 8px;
    }
    
    :where(.deal-page) .reviewer-info {
        display: flex;
        align-items: center;
        gap: 12px;
        flex-wrap: wrap;
    }
    
    :where(.deal-page) .reviewer-name {
        font-weight: 600;
        color: var(--dh-deal-text-dark);
    }
    
    :where(.deal-page) .review-date {
        font-size: 13px;
        color: var(--dh-deal-text-light);
    }
    
    :where(.deal-page) .review-stars {
        display: flex;
        gap: 2px;
    }
    
    :where(.deal-page) .review-content {
        font-size: 14px;
        color: var(--dh-deal-text-dark);
        line-height: 1.6;
    }
    
    :where(.deal-page) .show-all-reviews {
        display: inline-block;
        margin-top: 8px;
        font-size: 14px;
        font-weight: 600;
        color: var(--dh-deal-text-dark);
        text-decoration: underline;
    }
    
    /* Amenities Section in Content Area - Hidden (moved to sidebar) */
    :where(.deal-page) .deal-amenities-section {
        display: none;
    }
    
    /* Sidebar Amenities Card - Independent Module (Groupon Pill Style) */
    :where(.deal-page) .sidebar-amenities-card {
        margin-top: 24px;
        padding: 16px;
        background: var(--dh-deal-bg-white);
        border: 1px solid var(--dh-deal-border);
        border-radius: var(--dh-deal-radius-lg);
    }
    
    :where(.deal-page) .sidebar-amenities-title {
        font-size: 15px;
        font-weight: 700;
        color: var(--dh-deal-text-dark);
        margin: 0 0 12px;
    }
    
    :where(.deal-page) .sidebar-amenities-grid {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }
    
    :where(.deal-page) .sidebar-amenities-card .amenity-tag {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 8px 12px;
        border-radius: var(--dh-deal-radius-full);
        font-size: 13px;
        font-weight: 500;
        background: var(--dh-deal-bg-white);
        transition: all 0.15s ease;
        flex-shrink: 0;
    }
    
    :where(.deal-page) .sidebar-amenities-card .amenity-tag .amenity-icon {
        width: 16px;
        height: 16px;
        flex-shrink: 0;
        color: var(--dh-deal-text-light);
    }
    
    :where(.deal-page) .sidebar-amenities-card .amenity-tag .amenity-name {
        white-space: nowrap;
        font-size: 13px;
    }
    
    :where(.deal-page) .sidebar-amenities-card .amenity-tag .amenity-status {
        width: 16px;
        height: 16px;
        flex-shrink: 0;
    }
    
    /* Available state - Green border with checkmark */
    :where(.deal-page) .sidebar-amenities-card .amenity-tag[data-state="available"] {
        border: 1.5px solid var(--dh-deal-green);
        color: var(--dh-deal-text-dark);
    }
    
    :where(.deal-page) .sidebar-amenities-card .amenity-tag[data-state="available"] .amenity-icon {
        color: var(--dh-deal-text-medium);
    }
    
    :where(.deal-page) .sidebar-amenities-card .amenity-tag[data-state="available"] .amenity-status {
        color: var(--dh-deal-green);
    }
    
    /* Unavailable state - Gray border with X */
    :where(.deal-page) .sidebar-amenities-card .amenity-tag[data-state="unavailable"] {
        border: 1.5px solid var(--dh-deal-border);
        color: var(--dh-deal-text-light);
        background: var(--dh-deal-bg-gray-light);
    }
    
    :where(.deal-page) .sidebar-amenities-card .amenity-tag[data-state="unavailable"] .amenity-icon {
        color: #b0b0b0;
    }
    
    :where(.deal-page) .sidebar-amenities-card .amenity-tag[data-state="unavailable"] .amenity-status {
        color: #b0b0b0;
    }
    
    :where(.deal-page) .sidebar-amenities-card .amenity-tag[data-state="unavailable"] .amenity-name {
        color: var(--dh-deal-text-light);
    }
    
    /* ==========================================================================
       8) Sidebar (Groupon Style) - 不使用 sticky
       ========================================================================== */
    
    :where(.deal-page) .deal-sidebar-sticky {
        /* 不使用 sticky，固定位置 */
        position: relative;
    }
    
    :where(.deal-page) .deal-purchase-card {
        background: var(--dh-deal-bg-white);
        border: 1px solid var(--dh-deal-border);
        border-radius: var(--dh-deal-radius-lg);
        overflow: hidden;
        box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    }
    
    /* Promo Banner (Groupon Purple Style - 独立区块) */
    :where(.deal-page) .deal-promo-banner-wrap {
        margin-bottom: 16px;
        text-align: center;
    }
    
    :where(.deal-page) .deal-promo-banner {
        background: var(--dh-gpn-purple-bg);
        border: 2px dashed var(--dh-gpn-purple);
        border-radius: var(--dh-deal-radius-lg);
        padding: 10px 16px;
    }
    
    /* Promo Banner: Badge Text 单独一行，Code + End Date 下一行 */
    :where(.deal-page) .promo-banner-content {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 4px;
    }
    
    :where(.deal-page) .promo-banner-extra {
        font-size: 16px;
        font-weight: 700;
        color: var(--dh-deal-text-dark);
    }
    
    /* 第二行: Code + End Date 在同一行 */
    :where(.deal-page) .promo-banner-row2 {
        display: flex;
        flex-direction: row;
        align-items: center;
        gap: 6px;
    }
    
    :where(.deal-page) .promo-banner-line {
        font-size: 14px;
        font-weight: 500;
        color: var(--dh-deal-text-dark);
        display: inline;
    }
    
    :where(.deal-page) .promo-banner-code {
        color: var(--dh-gpn-purple);
        font-weight: 700;
        text-decoration: none;
    }
    
    :where(.deal-page) .promo-banner-timer {
        font-weight: 600;
        color: var(--dh-deal-text-dark);
        display: inline;
    }
    
    :where(.deal-page) .promo-banner-note {
        font-size: 12px;
        color: var(--dh-gpn-purple);
        margin-top: 10px;
        text-align: center;
    }
    
    /* Options Header (Groupon Style) */
    :where(.deal-page) .options-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 16px 16px 8px;
    }
    
    :where(.deal-page) .options-label {
        font-size: 14px;
        font-weight: 700;
        color: var(--dh-deal-text-dark);
    }
    
    /* Gift Toggle (Groupon Pink Border Style) */
    :where(.deal-page) .gift-toggle {
        display: flex;
        align-items: center;
        gap: 6px;
        cursor: pointer;
    }
    
    :where(.deal-page) .gift-toggle-checkbox {
        display: none;
    }
    
    :where(.deal-page) .gift-toggle-box {
        display: flex;
        align-items: center;
        gap: 6px;
        padding: 6px 12px;
        background: var(--dh-deal-pink-light);
        border: 1px solid var(--dh-deal-pink);
        border-radius: var(--dh-deal-radius-full);
        transition: all 0.2s ease;
    }
    
    :where(.deal-page) .gift-toggle-checkbox:checked + .gift-toggle-box {
        background: var(--dh-deal-pink);
    }
    
    :where(.deal-page) .gift-toggle-checkbox:checked + .gift-toggle-box .gift-toggle-label {
        color: #fff;
    }
    
    :where(.deal-page) .gift-toggle-checkbox:checked + .gift-toggle-box .gift-toggle-icon {
        color: #fff;
    }
    
    :where(.deal-page) .gift-toggle-icon {
        color: var(--dh-deal-pink);
    }
    
    :where(.deal-page) .gift-toggle-label {
        font-size: 12px;
        font-weight: 600;
        color: var(--dh-deal-pink);
    }
    
    :where(.deal-page) .gift-toggle-help {
        color: var(--dh-deal-text-light);
        cursor: help;
    }
    
    /* ==========================================================================
       9) Options (Groupon Style - 独立卡片)
       ========================================================================== */
    
    :where(.deal-page) [data-component="options"] {
        display: flex;
        flex-direction: column;
        gap: 12px;
        padding: 16px;
    }
    
    :where(.deal-page) .deal-option-card {
        position: relative;
        display: block;
        background: var(--dh-deal-bg-white);
        border: 1px solid var(--dh-deal-border);
        border-radius: var(--dh-deal-radius-lg);
        padding: 16px 16px 16px 48px;
        cursor: pointer;
        transition: all 0.15s ease;
    }
    
    :where(.deal-page) .deal-option-card:hover {
        border-color: var(--dh-deal-border);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    }
    
    /* Radio circle */
    :where(.deal-page) .deal-option-radio {
        position: absolute;
        opacity: 0;
        pointer-events: none;
    }
    
    :where(.deal-page) .deal-option-card::before {
        content: '';
        position: absolute;
        top: 18px;
        left: 16px;
        width: 20px;
        height: 20px;
        border-radius: 50%;
        border: 2px solid #d1d5db;
        background: var(--dh-deal-bg-white);
        box-sizing: border-box;
        transition: all 0.15s ease;
    }
    
    :where(.deal-page) .deal-option-card[data-state="selected"] {
        background: var(--dh-deal-bg-white);
        border-color: var(--dh-deal-blue);
    }
    
    :where(.deal-page) .deal-option-card[data-state="selected"]::before {
        border-color: var(--dh-deal-blue);
        border-width: 2px;
    }
    
    :where(.deal-page) .deal-option-card[data-state="selected"]::after {
        content: '';
        position: absolute;
        top: 24px;
        left: 22px;
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: var(--dh-deal-blue);
    }
    
    /* Option Content */
    :where(.deal-page) .deal-option-title {
        margin: 0 0 6px;
        font-size: 14px;
        font-weight: 600;
        color: var(--dh-deal-text-dark);
        line-height: 1.4;
    }
    
    /* 价格行: 原价 + 现价 + 折扣 (同一行) */
    :where(.deal-page) .deal-option-prices-row {
        display: flex;
        align-items: baseline;
        gap: 8px;
        margin-bottom: 6px;
    }
    
    :where(.deal-page) .deal-price-original {
        font-size: 13px;
        color: var(--dh-deal-text-light);
        text-decoration: line-through;
    }
    
    :where(.deal-page) .deal-price-sale {
        font-size: 13px;
        font-weight: 600;
        color: var(--dh-deal-pink);
    }
    
    :where(.deal-page) .deal-discount-badge {
        font-size: 13px;
        font-weight: 700;
        color: var(--dh-deal-pink);
    }
    
    /* 删除: deal-option-pricing (已不再使用) */
    :where(.deal-page) .deal-option-pricing {
        display: none;
    }
    
    :where(.deal-page) .deal-price-value {
        font-size: 22px;
        font-weight: 800;
        color: var(--dh-deal-red);
    }
    
    :where(.deal-page) .deal-price-sale-small {
        font-size: 13px;
        font-weight: 600;
        color: var(--dh-deal-pink);
        text-decoration: line-through;
    }
    
    /* 隐藏: Extra off 说明行 (问题4) */
    :where(.deal-page) .deal-extra-off {
        display: none;
    }
    
    :where(.deal-page) .deal-extra-off {
        font-size: 12px;
        font-weight: 600;
        color: var(--dh-deal-red);
    }
    
    /* Promo Code Box (Groupon Purple Style - 全紫色文字, 虚线边框) */
    :where(.deal-page) .option-promo {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 8px;
        padding: 8px 12px;
        border: 1px dashed var(--dh-gpn-purple);
        border-radius: var(--dh-deal-radius-md);
        margin-bottom: 10px;
        background: var(--dh-gpn-purple-bg);
    }
    
    /* 问题5: promo 行变小 */
    :where(.deal-page) .promo-price-code {
        display: flex;
        align-items: center;
        gap: 5px;
        font-size: 13px;
        color: var(--dh-gpn-purple);
    }
    
    :where(.deal-page) .promo-final-price {
        font-weight: 600;
        font-size: 14px;
        color: var(--dh-gpn-purple);
    }
    
    :where(.deal-page) .promo-label {
        font-size: 13px;
        color: var(--dh-gpn-purple);
    }
    
    :where(.deal-page) .code-text {
        font-weight: 600;
        font-size: 13px;
        color: var(--dh-gpn-purple);
    }
    
    :where(.deal-page) .apply-btn {
        background: transparent;
        border: none;
        color: var(--dh-gpn-purple);
        font-size: 13px;
        font-weight: 500;
        cursor: pointer;
        text-decoration: underline;
        padding: 4px 8px;
        text-decoration: underline;
        transition: all 0.15s ease;
    }
    
    :where(.deal-page) .apply-btn:hover {
        color: var(--dh-deal-text-dark);
    }
    
    /* Bought Count */
    :where(.deal-page) .bought-count {
        display: block;
        font-size: 12px;
        color: var(--dh-deal-text-light);
        margin-top: 6px;
    }
    
    /* ==========================================================================
       10) Quantity Controls (Groupon Style)
       ========================================================================== */
    
    :where(.deal-page) .qty-slot {
        margin-top: 12px;
    }
    
    :where(.deal-page) [data-component="quantity"] {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    
    :where(.deal-page) .deal-qty-btn {
        width: 32px;
        height: 32px;
        border-radius: 50%;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: var(--dh-deal-bg-white);
        border: 1px solid var(--dh-deal-border);
        font-size: 16px;
        font-weight: 600;
        color: var(--dh-deal-text-dark);
        cursor: pointer;
        transition: all 0.15s ease;
    }
    
    :where(.deal-page) .deal-qty-btn:hover {
        border-color: var(--dh-deal-text-medium);
        background: #f5f5f5;
    }
    
    :where(.deal-page) .deal-qty-btn[data-state="disabled"] {
        opacity: 0.4;
        cursor: not-allowed;
    }
    
    :where(.deal-page) .deal-qty-select-wrap {
        position: relative;
        display: flex;
        align-items: center;
        justify-content: center;
        height: 32px;
        min-width: 48px;
        padding: 0 24px 0 12px;
        border-radius: var(--dh-deal-radius-sm);
        background: var(--dh-deal-bg-white);
        border: 1px solid var(--dh-deal-border);
    }
    
    :where(.deal-page) .deal-qty-select {
        appearance: none;
        border: 0;
        outline: none;
        background: transparent;
        font-size: 14px;
        font-weight: 600;
        text-align: center;
        cursor: pointer;
        color: var(--dh-deal-text-dark);
    }
    
    :where(.deal-page) .qty-chevron {
        position: absolute;
        right: 8px;
        pointer-events: none;
        color: var(--dh-deal-text-medium);
    }
    
    /* ==========================================================================
       11) Action Footer (Groupon Style)
       ========================================================================== */
    
    :where(.deal-page) .deal-action-footer {
        padding: 16px 20px;
        border-top: 1px solid var(--dh-deal-border-light);
        background: var(--dh-deal-bg-white);
    }
    
    :where(.deal-page) .deal-viewed-today {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 6px;
        font-size: 13px;
        color: var(--dh-deal-text-medium);
        margin-bottom: 14px;
    }
    
    :where(.deal-page) .deal-viewed-today svg {
        color: var(--dh-deal-text-light);
    }
    
    :where(.deal-page) .deal-action-buttons {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }
    
    :where(.deal-page) .deal-gift-btn,
    :where(.deal-page) .deal-buy-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        height: 48px;
        border-radius: var(--dh-deal-radius-full);
        font-size: 15px;
        font-weight: 700;
        text-decoration: none;
        cursor: pointer;
        transition: all 0.15s ease;
    }
    
    :where(.deal-page) .deal-gift-btn {
        background: var(--dh-deal-bg-white);
        border: 2px solid var(--dh-deal-pink);
        color: var(--dh-deal-text-dark);
    }
    
    :where(.deal-page) .deal-gift-btn:hover {
        background: var(--dh-deal-pink-light);
        border-color: var(--dh-deal-pink);
        color: var(--dh-deal-pink);
    }
    
    :where(.deal-page) .deal-gift-btn svg {
        color: var(--dh-deal-pink);
    }
    
    :where(.deal-page) .deal-buy-btn {
        background: var(--dh-deal-green);
        border: 2px solid var(--dh-deal-green);
        color: #fff;
    }
    
    :where(.deal-page) .deal-buy-btn:hover {
        background: var(--dh-deal-green-hover);
        border-color: var(--dh-deal-green-hover);
    }
    
    :where(.deal-page) .deal-buy-btn[data-state="disabled"] {
        opacity: 0.5;
        cursor: not-allowed;
    }
    
    /* ==========================================================================
    /* ==========================================================================
       12) Lightbox (Groupon Style)
       
       HTML 结构:
       .dealhub-lightbox [data-component="lightbox"]
         .lightbox-overlay
         .lightbox-content
           .lightbox-header
             .lightbox-counter
               .lightbox-current / .lightbox-total
             .lightbox-close
           .lightbox-body
             .lightbox-sidebar
               .lightbox-thumbs
                 .lightbox-thumb [data-state="active"]
             .lightbox-main
               .lightbox-images
                 .lightbox-image-item
       
       布局:
       ┌─────────────────────────────────────────────────────┐
       │  1 of 15                                        [X] │
       ├────────┬────────────────────────────────────────────┤
       │ [缩略] │           大图 1                           │
       │ [缩略] │                                            │
       │ [缩略] │ ─────────────────────────────────────────  │
       │ [缩略] │           大图 2                           │
       │  ...   │           ...（可滚动）                    │
       └────────┴────────────────────────────────────────────┘
       ========================================================================== */
    
    /* Lightbox 根容器 - 使用更高特异性 */
    .dealhub-lightbox[data-component="lightbox"] {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 9999;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
    }
    
    .dealhub-lightbox[data-component="lightbox"][data-state="open"] {
        opacity: 1;
        visibility: visible;
    }
    
    /* 遮罩层 - 深灰色 */
    .dealhub-lightbox[data-component="lightbox"] .lightbox-overlay {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(30, 30, 30, 0.97);
        cursor: pointer;
    }
    
    /* 内容容器 - 垂直 flex 布局 */
    .dealhub-lightbox[data-component="lightbox"] .lightbox-content {
        position: relative;
        width: 100%;
        height: 100%;
        display: flex;
        flex-direction: column;
        z-index: 1;
    }
    
    /* 头部：计数器 + 关闭按钮，居中对齐 */
    .dealhub-lightbox[data-component="lightbox"] .lightbox-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 16px 24px;
        flex-shrink: 0;
        max-width: 1200px;
        width: 100%;
        margin: 0 auto;
    }
    
    .dealhub-lightbox[data-component="lightbox"] .lightbox-counter {
        color: #fff;
        font-size: 14px;
        font-weight: 500;
        background: rgba(0, 0, 0, 0.6);
        padding: 8px 16px;
        border-radius: 6px;
    }
    
    .dealhub-lightbox[data-component="lightbox"] .lightbox-close {
        width: 44px;
        height: 44px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.15);
        border: none;
        color: #fff;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: background 0.2s ease;
    }
    
    .dealhub-lightbox[data-component="lightbox"] .lightbox-close:hover {
        background: rgba(255, 255, 255, 0.25);
    }
    
    /* 主体：左右分栏 flex，居中显示 */
    .dealhub-lightbox[data-component="lightbox"] .lightbox-body {
        flex: 1;
        display: flex;
        flex-direction: row;
        overflow: hidden;
        min-height: 0;
        max-width: 1200px;
        width: 100%;
        margin: 0 auto;
    }
    
    /* 左侧缩略图区域 */
    .dealhub-lightbox[data-component="lightbox"] .lightbox-sidebar {
        width: 120px;
        flex-shrink: 0;
        background: rgba(0, 0, 0, 0.4);
        padding: 12px;
        overflow: hidden;
        display: block;
    }
    
    .dealhub-lightbox[data-component="lightbox"] .lightbox-thumbs {
        height: 100%;
        overflow-y: auto;
        overflow-x: hidden;
        display: flex;
        flex-direction: column;
        gap: 10px;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }
    
    .dealhub-lightbox[data-component="lightbox"] .lightbox-thumbs::-webkit-scrollbar {
        display: none;
    }
    
    .dealhub-lightbox[data-component="lightbox"] .lightbox-thumb {
        flex-shrink: 0;
        width: 96px;
        height: 72px;
        border-radius: 6px;
        overflow: hidden;
        border: 3px solid transparent;
        cursor: pointer;
        padding: 0;
        background: #000;
        transition: border-color 0.2s ease, opacity 0.2s ease;
        opacity: 0.5;
    }
    
    .dealhub-lightbox[data-component="lightbox"] .lightbox-thumb:hover {
        opacity: 0.8;
    }
    
    .dealhub-lightbox[data-component="lightbox"] .lightbox-thumb[data-state="active"] {
        border-color: #00a524;
        opacity: 1;
    }
    
    .dealhub-lightbox[data-component="lightbox"] .lightbox-thumb img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
    }
    
    /* 右侧大图区域 */
    .dealhub-lightbox[data-component="lightbox"] .lightbox-main {
        flex: 1;
        overflow-y: auto;
        overflow-x: hidden;
        padding: 0 40px 20px 20px;
        scroll-behavior: smooth;
    }
    
    .dealhub-lightbox[data-component="lightbox"] .lightbox-images {
        display: flex;
        flex-direction: column;
        gap: 24px;
        max-width: 900px;
        margin: 0 auto;
    }
    
    .dealhub-lightbox[data-component="lightbox"] .lightbox-image-item {
        width: 100%;
        border-radius: 8px;
        overflow: hidden;
        background: #000;
    }
    
    .dealhub-lightbox[data-component="lightbox"] .lightbox-image-item img {
        width: 100%;
        height: auto;
        display: block;
    }
    
    /* 响应式 - 移动端 */
    @media (max-width: 768px) {
        .dealhub-lightbox[data-component="lightbox"] .lightbox-sidebar {
            display: none;
        }
        
        .dealhub-lightbox[data-component="lightbox"] .lightbox-main {
            padding: 0 16px 20px;
        }
        
        .dealhub-lightbox[data-component="lightbox"] .lightbox-header {
            padding: 12px 16px;
        }
        
        .dealhub-lightbox[data-component="lightbox"] .lightbox-close {
            width: 40px;
            height: 40px;
        }
        
        .dealhub-lightbox[data-component="lightbox"] .lightbox-images {
            gap: 16px;
        }
    }
    
    /* ==========================================================================
       13) Responsive (Groupon Style)
       ========================================================================== */
    
    @media (max-width: 1024px) {
        :where(.deal-page) .deal-main-layout {
            grid-template-columns: 1fr;
            gap: 24px;
        }
        
        /* 移动端：sidebar 在 content 之前，但 header 仍在 content 内部最上方 */
        :where(.deal-page) .deal-sidebar-col {
            order: -1;
        }
        
        :where(.deal-page) .deal-sidebar-sticky {
            position: static;
        }
        
        /* 移动端：header 和 gallery 在 sidebar 之后正常显示 */
        :where(.deal-page) .deal-content-col {
            display: flex;
            flex-direction: column;
        }
        
        :where(.deal-page) .deal-header {
            order: 0;
        }
    }
    
    @media (max-width: 768px) {
        :where(.deal-page) .deal-container {
            padding: 0 16px;
        }
        
        :where(.deal-page) .deal-breadcrumbs {
            padding: 12px 0 16px;
        }
        
        :where(.deal-page) .deal-title {
            font-size: 18px;
        }
        
        /* 移动端 meta-row 允许换行 */
        :where(.deal-page) .deal-meta-row {
            flex-wrap: wrap;
            gap: 8px;
        }
        
        :where(.deal-page) .deal-tabs-nav {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        
        :where(.deal-page) .deal-tab-link {
            padding: 14px 16px;
            font-size: 13px;
        }
        
        :where(.deal-page) .deal-action-buttons {
            grid-template-columns: 1fr;
        }
        
        /* 移动端缩略图仍然一行 - 只调整间距 */
        :where(.deal-page) .deal-thumbs-track {
            gap: 6px;
        }
        
        :where(.deal-page) .options-header {
            flex-direction: column;
            align-items: flex-start;
            gap: 12px;
        }
    }
}