/* 产品主容器 - 参考网站的左右布局 */
        .product-container {
            display: flex;
            gap: 25px;
            margin-bottom: 40px;
        }
        
        /* 左侧产品图片区 - 参考网站样式 */
        .product-gallery {
            width: 40%;
            flex-shrink: 0;
        }
        .gallery-big {
            width: 100%;
            height: 500px;
            border: 1px solid var(--border-gray);
            border-radius: 4px;
            overflow: hidden;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .gallery-big img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .gallery-thumbs {
            display: flex;
            gap: 8px;
            overflow-x: auto;
            padding-bottom: 5px;
        }
        .gallery-thumb {
            width: 80px;
            height: 80px;
            border: 2px solid transparent;
            border-radius: 4px;
            cursor: pointer;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .gallery-thumb.active {
            border-color: var(--zh-gold);
        }
        .gallery-thumb:hover {
            opacity: 0.8;
            border-color: var(--zh-blue);
        }
        
        /* 右侧产品信息区 - 参考网站样式 */
        .product-info {
            flex: 1;
        }
        .product-title {
            font-size: 28px;
            color: var(--zh-dark-blue);
            margin-bottom: 15px;
            font-weight: 600;
            line-height: 1.3;
        }
        .product-subtitle {
            color: var(--text-gray);
            font-size: 16px;
            margin-bottom: 25px;
            line-height: 1.6;
        }
        
        /* ========== 新增淘宝风格价格和型号选择样式 ========== */
        .product-price {
            background-color: var(--taobao-light-red);
            border-radius: 4px;
            padding: 15px;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .price-label {
            font-size: 14px;
            color: #999;
            white-space: nowrap;
        }
        .price-value {
            font-size: 28px;
            color: var(--taobao-red);
            font-weight: bold;
        }
        .price-unit {
            font-size: 16px;
            color: var(--taobao-red);
        }
        .price-original {
            margin-left: 15px;
            font-size: 14px;
            color: #999;
            text-decoration: line-through;
        }
        .price-note {
            margin-left: auto;
            font-size: 12px;
            color: #666;
        }
        
        /* 型号选择区域 */
        .product-models {
            margin-bottom: 25px;
        }
        .model-title {
            font-size: 16px;
            color: #333;
            margin-bottom: 10px;
            font-weight: 500;
        }
        .model-options {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .model-option {
            padding: 8px 15px;
            border: 1px solid var(--border-gray);
            border-radius: 4px;
            cursor: pointer;
            transition: var(--transition);
            font-size: 14px;
            background-color: white;
        }
        .model-option:hover {
            border-color: var(--taobao-red);
        }
        .model-option.active {
            border-color: var(--taobao-red);
            background-color: var(--taobao-light-red);
            color: var(--taobao-red);
            font-weight: 500;
        }
        
        /* 数量选择 */
        .product-quantity {
            margin-bottom: 25px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .quantity-label {
            font-size: 16px;
            color: #333;
            font-weight: 500;
        }
        .quantity-controls {
            display: flex;
            align-items: center;
            border: 1px solid var(--border-gray);
            border-radius: 4px;
            height: 36px;
        }
        .quantity-btn {
            width: 36px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 16px;
            color: #666;
            transition: var(--transition);
        }
        .quantity-btn:hover {
            background-color: #f5f5f5;
            color: var(--taobao-red);
        }
        .quantity-input {
            width: 60px;
            height: 100%;
            text-align: center;
            border: none;
            outline: none;
            font-size: 14px;
        }
        
        /* 购物车和购买按钮 */
        .product-cart-actions {
            display: flex;
            gap: 15px;
            margin-bottom: 30px;
            flex-wrap: wrap;
        }
        .cart-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 30px;
            border-radius: 4px;
            cursor: pointer;
            transition: var(--transition);
            font-size: 16px;
            font-weight: 500;
            border: none;
        }
        .cart-btn.add-cart {
            background-color: var(--taobao-red);
            color: white;
            flex: 1;
            max-width: 200px;
        }
        .cart-btn.buy-now {
            background-color: #ff6600;
            color: white;
            flex: 1;
            max-width: 200px;
        }
        .cart-btn:hover {
            opacity: 0.9;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(255, 68, 0, 0.2);
        }
        
        /* 购物车悬浮层 */
        .cart-popup {
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%) scale(0.8);
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.2);
            padding: 30px;
            z-index: 1000;
            display: none;
            opacity: 0;
            transition: all 0.3s ease;
            min-width: 300px;
            text-align: center;
        }
        .cart-popup.show {
            display: block;
            opacity: 1;
            transform: translate(-50%, -50%) scale(1);
        }
        .cart-popup-icon {
            font-size: 48px;
            color: #4CAF50;
            margin-bottom: 15px;
        }
        .cart-popup-title {
            font-size: 20px;
            color: #333;
            margin-bottom: 10px;
        }
        .cart-popup-desc {
            font-size: 14px;
            color: #666;
            margin-bottom: 20px;
        }
        .cart-popup-btns {
            display: flex;
            gap: 10px;
            justify-content: center;
        }
        .cart-popup-btn {
            padding: 8px 20px;
            border-radius: 4px;
            cursor: pointer;
            font-size: 14px;
            transition: var(--transition);
        }
        .cart-popup-btn.primary {
            background-color: var(--taobao-red);
            color: white;
            border: none;
        }
        .cart-popup-btn.secondary {
            background-color: white;
            color: #666;
            border: 1px solid var(--border-gray);
        }
        .cart-popup-btn:hover {
            opacity: 0.9;
        }
        
        /* 遮罩层 */
        .overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0,0,0,0.5);
            z-index: 999;
            display: none;
        }
        .overlay.show {
            display: block;
        }
        
        /* ========== 原有样式继续 ========== */
        
        /* 产品快速操作区 - 参考网站样式 */
        .product-actions {
            display: flex;
            gap: 15px;
            margin-bottom: 30px;
            flex-wrap: wrap;
        }
        .action-btn {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            background-color: var(--zh-blue);
            color: white;
            border-radius: 4px;
            cursor: pointer;
            transition: var(--transition);
        }
        .action-btn.primary {
            background-color: var(--zh-gold);
            color: var(--zh-dark-blue);
            font-weight: 600;
        }
        .action-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        
        /* 产品参数表格 - 参考网站样式 */
        .product-specs {
            background-color: var(--white);
            border: 1px solid var(--border-gray);
            border-radius: 4px;
            margin-bottom: 30px;
            overflow: hidden;
        }
        .specs-header {
            background-color: var(--zh-gray);
            padding: 12px 15px;
            font-weight: 600;
            color: var(--zh-dark-blue);
            border-bottom: 1px solid var(--border-gray);
        }
        .specs-table {
            width: 100%;
            border-collapse: collapse;
        }
        .specs-table tr {
            border-bottom: 1px solid var(--border-gray);
        }
        .specs-table tr:last-child {
            border-bottom: none;
        }
        .specs-table td {
            padding: 12px 15px;
            font-size: 14px;
        }
        .specs-table td:first-child {
            width: 30%;
            background-color: var(--zh-gray);
            color: var(--text-gray);
            font-weight: 500;
        }
        .specs-table td:last-child {
            color: var(--zh-dark-blue);
        }
        
        /* 产品详情标签页 - 参考网站核心交互 */
        .product-tabs {
            border: 1px solid var(--border-gray);
            border-radius: 4px;
            margin-bottom: 30px;
        }
        .tabs-nav {
            display: flex;
            background-color: var(--zh-gray);
            border-bottom: 1px solid var(--border-gray);
        }
        .tab-item {
            padding: 12px 20px;
            cursor: pointer;
            transition: var(--transition);
            font-weight: 500;
            color: var(--text-gray);
            border-right: 1px solid var(--border-gray);
        }
        .tab-item.active {
            background-color: var(--zh-blue);
            color: white;
        }
        .tab-item:hover:not(.active) {
            background-color: #e9edf2;
            color: var(--zh-dark-blue);
        }
        .tab-content {
            padding: 20px;
            display: none;
        }
        .tab-content.active {
            display: block;
            animation: fadeIn 0.3s ease;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        
        /* 产品详情内容样式 */
        .product-description p {
            color: var(--text-gray);
            line-height: 1.8;
            margin-bottom: 20px;
            font-size: 15px;
        }
        .product-description img {
		    max-width: 100% !important;
		    height: auto !important;
		    display: block;
		    box-sizing: border-box;
		}
        .feature-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin: 25px 0;
        }
        .feature-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .feature-icon {
            width: 32px;
            height: 32px;
            background-color: var(--zh-blue);
            color: var(--white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 14px;
        }
        .feature-content h4 {
            color: var(--zh-dark-blue);
            margin-bottom: 5px;
            font-size: 16px;
        }
        .feature-content p {
            margin-bottom: 0;
            font-size: 14px;
            line-height: 1.6;
        }
        
        /* 应用场景 - 参考样式 */
        .application-scenarios {
            margin-bottom: 40px;
        }
        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
        }
        .scenario-card {
            border: 1px solid var(--border-gray);
            border-radius: 4px;
            overflow: hidden;
            transition: var(--transition);
        }
        .scenario-card:hover {
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transform: translateY(-3px);
        }
        .scenario-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .scenario-content {
            padding: 15px;
        }
        .scenario-content h4 {
            color: var(--zh-dark-blue);
            font-size: 16px;
            margin-bottom: 10px;
        }
        .scenario-content p {
            color: var(--text-gray);
            font-size: 14px;
            line-height: 1.6;
        }
        
        /* 技术文档下载 - 参考样式 */
        .technical-docs {
            margin-bottom: 40px;
        }
        .docs-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 15px;
        }
        .doc-card {
            border: 1px solid var(--border-gray);
            border-radius: 4px;
            padding: 15px;
            display: flex;
            align-items: center;
            gap: 15px;
            transition: var(--transition);
        }
        .doc-card:hover {
            background-color: var(--zh-gray);
            border-color: var(--zh-blue);
        }
        .doc-icon {
            width: 40px;
            height: 40px;
            background-color: var(--zh-blue);
            color: white;
            border-radius: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
        }
        .doc-info h4 {
            color: var(--zh-dark-blue);
            font-size: 15px;
            margin-bottom: 5px;
        }
        .doc-download {
            color: var(--zh-blue);
            text-decoration: none;
            font-size: 13px;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .doc-download:hover {
            color: var(--zh-gold);
            text-decoration: underline;
        }
        
        /* 相关产品推荐 - 参考样式 */
        .related-products {
            margin-bottom: 40px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
        }
        .related-card {
            border: 1px solid var(--border-gray);
            border-radius: 4px;
            overflow: hidden;
            transition: var(--transition);
        }
        .related-card:hover {
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transform: translateY(-3px);
        }
        .related-img {
            width: 100%;
            height: 260px;
            object-fit: cover;
        }
        .related-content {
            padding: 15px;
        }
        .related-content h4 {
            color: var(--zh-dark-blue);
            font-size: 16px;
            margin-bottom: 8px;
        }
        .related-content p {
            color: var(--text-gray);
            font-size: 14px;
            line-height: 1.6;
            margin-bottom: 10px;
        }
        .related-link {
            color: var(--zh-blue);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
        }
        .related-link:hover {
            color: var(--zh-gold);
            text-decoration: underline;
        }
        
         .section-title_c {
            text-align: left;
            margin-bottom: 25px;
            color: var(--zh-dark-blue);
            font-size: 24px;
            font-weight: 600;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--zh-gold);
        }
        
        /* 移动端适配 - 适配参考网站布局 */
        @media (max-width: 1200px) {
            .feature-list {
                grid-template-columns: 1fr;
            }
        }
        
        @media (max-width: 992px) {
            .product-container {
                flex-direction: column;
            }
            .product-gallery {
                width: 100%;
            }
            .gallery-big {
                height: 350px;
            }
            .tabs-nav {
                flex-wrap: wrap;
            }
            .tab-item {
                flex: 1;
                text-align: center;
                padding: 10px;
                font-size: 14px;
            }
            .cart-btn {
                flex: 1;
                max-width: none;
            }
        }
        
        @media (max-width: 768px) {
            /* 移动端导航 */
            .main-nav {
                display: none;
                position: fixed;
                top: 80px;
                left: 0;
                width: 100%;
                height: calc(100vh - 80px);
                background-color: var(--otis-dark-blue);
                flex-direction: column;
                padding: 30px 0;
                z-index: 997;
            }
            .main-nav.show {
                display: flex;
            }
            .main-nav > li {
                margin: 10px 0;
                width: 100%;
                text-align: center;
            }
            .main-nav > li > a {
                color: var(--white);
                padding: 15px 0;
            }
            .mobile-menu-btn {
                display: block;
            }
            
            /* 移动端下拉菜单 - 统一样式 */
            .dropdown {
                position: static;
                width: 100%;
                transform: none;
                padding: 30px 20px;
                display: none;
                opacity: 1;
                visibility: visible;
                box-shadow: none;
                background-color: #001a47;
            }
            .dropdown-content {
                grid-template-columns: 1fr;
                padding: 0;
                gap: 20px;
            }
            .dropdown-title {
                left: 20px;
                font-size: 24px;
            }
            .dropdown-close {
                right: 20px;
            }
            .contact-card {
                grid-column: unset;
                margin-top: 0;
            }
            
            /* 移动端搜索 */
            .search-wrapper {
                margin-left: 10px;
            }
            .search-box {
                width: 250px;
            }
            
            /* 移动端产品内页 */
            .product-title {
                font-size: 24px;
            }
            .gallery-big {
                height: 280px;
            }
            .product-actions {
                flex-direction: column;
            }
            .action-btn {
                width: 100%;
                justify-content: center;
            }
            .specs-table td:first-child {
                width: 40%;
            }
            .product-price {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .price-note {
                margin-left: 0;
                margin-top: 5px;
            }
            .product-cart-actions {
                flex-direction: column;
            }
        }
        
        @media (max-width: 480px) {
            .container {
                width: 95%;
            }
            .top-bar-content {
                font-size: 12px;
            }
            .logo img {
                height: 40px;
            }
            .nav {
                height: 70px;
            }
            .search-box {
                width: 200px;
            }
            .gallery-big {
                height: 220px;
            }
            .gallery-thumb {
                width: 60px;
                height: 60px;
            }
            .specs-table td {
                padding: 8px 10px;
                font-size: 13px;
            }
            .price-value {
                font-size: 24px;
            }
        }
        
        
        .social-share {
    display: flex;
    gap: 16px; /* 原 space-x-4 */
}
.share-item {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    color: #ffffff;
    text-decoration: none;
    transition: background-color 0.25s ease;
}
.share-item.facebook {
    background-color: #1877F2;
}
.share-item.facebook:hover {
    background-color: #166FE5;
}
.share-item.x-twitter {
    background-color: #000000;
}
.share-item.x-twitter:hover {
    background-color: #333333;
}
.share-item.linkedin {
    background-color: #0A66C2;
}
.share-item.linkedin:hover {
    background-color: #095CB1;
}
.share-item.whatsapp {
    background-color: #25D366;
}
.share-item.whatsapp:hover {
    background-color: #21B858;
}
.share-item.pinterest {
    background-color: #E60023;
}
.share-item.pinterest:hover {
    background-color: #cc001f;
}
        
 /* 缩略图容器 */
    .product-image-gallery {
      display: flex;
      gap: 12px;
      margin: 20px 0;
    }
    .thumb-item {
      width:120px;
      height:120px;
      object-fit: cover;
      border:2px solid transparent;
      cursor: pointer;
      border-radius:4px;
    }
    .thumb-item:hover {
      border-color:#2563eb;
    }

    /* 放大弹窗遮罩 */
    .image-modal {
      position: fixed;
      top:0;
      left:0;
      width:100vw;
      height:100vh;
      z-index:9999;
      display:none;
    }
    .image-modal.show {
      display:block;
    }
    /* 点击关闭背景层 */
    .modal-bg {
      position:absolute;
      inset:0;
      background: rgba(0,0,0,0.85);
    }
    /* 上层交互容器：所有按钮、拖拽区都在bg之上 */
    .modal-inner {
      position:absolute;
      inset:0;
      z-index:1;
    }

    .modal-close {
      position:absolute;
      top:20px;
      right:30px;
      color:#fff;
      font-size:36px;
      cursor:pointer;
      z-index:10000;
      user-select:none;
    }
    /* 左右切换箭头 */
    .modal-arrow {
      position:absolute;
      top:50%;
      transform:translateY(-50%);
      color:#fff;
      font-size:48px;
      background:rgba(255,255,255,0.15);
      border:none;
      width:50px;
      height:80px;
      cursor:pointer;
      z-index:10000;
      user-select:none;
    }
    .modal-arrow:hover {
      background:rgba(255,255,255,0.3);
    }
    .arrow-prev {
      left:20px;
    }
    .arrow-next {
      right:20px;
    }
    /* 缩放提示信息 */
    .zoom-hint{
      position:absolute;
      bottom:24px;
      left:50%;
      transform:translateX(-50%);
      color:#ffffff99;
      font-size:14px;
      z-index:10000;
    }

    /* 拖拽容器 */
    .drag-wrap {
      width:100%;
      height:100%;
      cursor: grab;
      overflow:hidden;
    }
    .drag-wrap:active {
      cursor: grabbing;
    }
    .drag-image {
      position:absolute;
      transform-origin: 0 0;
      pointer-events:none;
    }