.left-sidebar {
            margin-bottom: 20px;
        }
        .blue-menu {
            background-color: #fff;
            color: #000;
            border-radius: 4px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
            margin-bottom: 15px;
        }
        .blue-menu-main {
            display: block;
            color: #fff;
            text-align: center;
            padding: 10px 0;
            font-weight: bold;
            font-size: 16px;
            text-decoration: none;
            background-color: #0f467e;
            border-bottom: 1px solid rgba(255,255,255,0.2);
        }
        .blue-menu-sub {
            display: block;
            color: #000;
            text-align: center;
            padding: 9px 0;
            font-size: 14px;
            text-decoration: none;
            border-bottom: 1px solid rgba(0,0,0,0.15);
            transition: background 0.2s;
        }
        .blue-menu-sub:hover {
            background-color: #1e61b3;
            color: #fff;
        }
        .blue-menu-sub:last-child {
            border-bottom: none;
        }
        /* 广告图区域 */
        .ad-banner-box {
            background: #fff;
            border: 1px solid #e0e0e0;
            border-radius: 4px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
        }
        .ad-img-placeholder {
            background: linear-gradient(135px, #2b7cd9, #e67e22);
            color: white;
            padding: 0;
            text-align: center;
            position: relative;
        }
        /* 轮播小圆点模拟 */
        .dot-indicators {
            display: flex;
            justify-content: center;
            gap: 6px;
            padding: 10px 0;
            background: #fff;
        }
        .dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: #2b7cd9;
        }
        .dot.active {
            background-color: #a0c4ff;
        }


.custom-content-wrap{}
        /* ================= 中间：原产品分类导航样式 ================= */
        .sidebar {
            background: #f1f1f1;
            border-radius: 4px;
            overflow: hidden;
            margin-bottom: 20px;
        }
        .sidebar-header {
            background-color: #c8161d;
            color: white;
            padding: 12px 20px;
            font-weight: bold;
            font-size: 18px;
            border-top-left-radius: 4px;
            border-top-right-radius: 15px;
        }
        .sidebar-footer {
            background-color: #c8161d;
            color: white;
            font-size: 12px;
            padding: 6px 12px;
            display: inline-block;
            border-top-left-radius: 8px;
            border-bottom-right-radius: 4px;
            float: right;
        }
        .menu-item {
            border-bottom: 1px solid #e0e0e0;
        }
        .menu-title {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 20px;
            font-weight: 500;
            color: #333;
            text-decoration: none;
            background: #fdfdfd;
            cursor: pointer;
        }
        .menu-item.active .menu-title-text {
            color: #c8161d;
            font-weight: bold;
        }
        .sub-menu {
            list-style: none;
            padding: 5px 0 10px 35px;
            background: #fff;
            margin: 0;
        }
        .sub-menu li a {
            display: block;
            padding: 5px 0;
            color: #888;
            text-decoration: none;
            font-size: 14px;
        }
        .sub-menu li.active a {
            color: #c8161d;
            font-weight: bold;
        }
        .toggle-btn {
            background: #ccc;
            color: white;
            border-radius: 50%;
            width: 18px;
            height: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
        }
        .menu-item .menu-title[aria-expanded="true"] .toggle-btn {
            background: #c8161d;
        }

        /* ================= 右侧：商品主内容区域样式 ================= */
        .main-title {
            font-size: 22px;
            font-weight: bold;
            margin-bottom: 20px;
            border-bottom: 2px solid #ccc;
            padding-bottom: 8px;
        }
        .tag-btn {
            border: 1px solid #ccc;
            background: #fff;
            color: #555;
            padding: 4px 12px;
            font-size: 13px;
            border-radius: 4px;
            margin-right: 8px;
            margin-bottom: 10px;
            display: inline-block;
            text-decoration: none;
        }
        .tag-btn.active, .tag-btn:hover {
            background: #c8161d;
            color: #fff;
            border-color: #c8161d;
        }
        .product-card {
            background: #fff;
            border: 1px solid #eef0f2;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.04);
            margin-bottom: 20px;
            overflow: hidden;
        }
        .product-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .product-name {
            font-size: 16px;
            font-weight: bold;
            color: #111;
            margin: 0;
        }
        .btn-detail {
            font-size: 12px;
            border: 1px solid #dee2e6;
            padding: 4px 12px;
            border-radius: 12px;
            background-color: #f8f9fa;
            color: #333;
        }
        .btn-detail:not(.collapsed) {
            background-color: #c8161d;
            color: white;
            border-color: #c8161d;
        }
        .table-product {
            margin-bottom: 0;
            font-size: 13px;
        }
        .table-product thead {
            background-color: #c8161d;
            color: white;
            text-align: center;
        }
        .table-product th {
            font-weight: 500;
            padding: 10px 6px;
            border: none;
        }
        .table-product td {
            padding: 12px 8px;
            text-align: center;
            border-bottom: 1px solid #f0f0f0;
        }
        .table-product td .quantity-group {
            display: inline-flex;
            align-items: center;
            border: 1px solid #ccc;
            border-radius: 3px;
            background: #fff;
            white-space: nowrap;
        }
        .quantity-btn {
            background: none;
            border: none;
            width: 22px;
            height: 24px;
            font-size: 12px;
        }
        .quantity-input {
            width: 30px;
            text-align: center;
            border: none;
            border-left: 1px solid #ccc;
            border-right: 1px solid #ccc;
            font-size: 12px;
            font-weight: bold;
            height: 24px;
        }
        .cart-column {
            white-space: nowrap;
        }
        .cart-icon-btn {
            color: #c8161d;
            font-size: 20px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 4px 8px;
        }
        .pagination .page-link {
            color: #555;
            border-color: #dee2e6;
        }
        .pagination .page-item.active .page-link {
            background-color: #c8161d;
            border-color: #c8161d;
            color: #fff;
        }
        
      



 

        /* 顶部标题样式 */
        .page-header {
            font-size: 16px;
            font-weight: 600;
            color: #198754; /* 墨绿色 */
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 25px;
            padding-bottom: 10px;
            border-bottom: 1px solid #eeeeee;
        }

        /* 参考文献卡片基础样式 */
        .reference-card {
            background-color: #ffffff;
            border: 1px solid #eef0f2;
            border-radius: 4px;
            padding: 20px;
            height: 100%;
            box-shadow: 0 1px 3px rgba(0,0,0,0.02);
            transition: transform 0.2s ease, box-shadow 0.2s ease;
            margin-bottom: 5px;
        }
        .reference-card:hover {
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
        }

        /* 卡片左侧固定宽度容器（容纳化学式或Logo） */
        .card-media-box {
            width: 120px;
            height: 90px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            background-color: #ffffff;
        }
        
        /* 占位图/化学结构式样式模拟 */
        .card-media-box img {
            max-width: 100%;
            max-height: 100%;
            object-fit: contain;
        }

        /* 模拟未加载图片的化学式线条（UI占位） */
        .chemical-placeholder {
            width: 85%;
            height: 85%;
            opacity: 0.7;
            background: linear-gradient(45deg, transparent 48%, #999 49%, #999 51%, transparent 52%),
                        linear-gradient(-45deg, transparent 48%, #999 49%, #999 51%, transparent 52%);
            background-size: 30px 30px;
        }

        /* 文本内容样式 */
        .card-content-box {
            font-size: 13px;
            line-height: 1.5;
        }

        /* 影响因子 IF 标签 */
        .if-tag {
            color: #dc3545; /* 红色 */
            font-weight: 700;
            margin-right: 5px;
        }

        /* 文献标题/描述 */
        .ref-title {
            font-weight: 600;
            color: #222222;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .ref-title a {
            color: inherit;
            text-decoration: none;
        }
        .ref-title a:hover {
            color: #198754;
        }

        /* 产品信息文本 */
        .product-info {
            color: #666666;
            margin-bottom: 2px;
        }

        /* 分页组件样式定制 */
        .custom-pagination .page-link {
            color: #666666;
            border: 1px solid #e0e0e0;
            margin: 0 3px;
            padding: 5px 12px;
            font-size: 13px;
            background-color: #ffffff;
            border-radius: 3px !important;
        }
        .custom-pagination .page-item.active .page-link {
            background-color: #198754;
            border-color: #198754;
            color: #ffffff;
        }
        .custom-pagination .page-item.disabled .page-link {
            background-color: transparent;
            border-color: transparent;
            color: #bbbbbb;
        }
        
                .custom-content-wrap {
    width: 100%;
    max-width: 1350px; /* 如果觉得宽了或窄了，可以改成 1320px 或其他与导航条一致的宽度 */
    padding-left: 15px;
    padding-right: 15px;
}