/* 基础样式重置 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --primary-color: #165093;
            --primary-light: #2d6eb5;
            --primary-dark: #0f3a6b;
            --text-dark: #333333;
            --text-light: #666666;
            --text-gray: #999999;
            --bg-light: #f8f9fa;
            --bg-dark: #1a1a1a;
            --white: #ffffff;
            --shadow: 0 4px 20px rgba(0,0,0,0.1);
            --shadow-hover: 0 8px 30px rgba(0,0,0,0.15);
        }
 /* ----- PB分页数字条效果 结束 ----- */
.pagebar .pagination {
  display: flex;
  justify-content: center;
  margin-top: 20px;
  margin-bottom: 50px;
}
.pagination a {
  background: #fff;
  border: 1px solid #ccc;
  color: #333;
  font-size: 14px;
  padding: 8px 12px;
  margin: 0 5px;
  border-radius: 3px;
 
}
.pagination span {
    color: #333;
    font-size: 14px;
    padding: 8px 2px;
    margin: 0 5px;
    border-radius: 3px;
}
.pagination a:hover {
  color: #1759aa;
  border: 1px solid #1759aa;
}
.pagination a.page-num-current {
  color: #fff;
  background: #1759aa;
  border: 1px solid #1759aa;
}
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
            color: var(--text-dark);
            line-height: 1.6;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 产品展示区域 */
        .product-section {
            padding: 20px 0 80px;
            background: var(--white);
        }

        /* 上部分类导航 - 多级栏目 */
        .product-tabs-wrapper {
            margin-bottom: 40px;
            background: var(--bg-light);
            border-radius: 12px;
            padding: 20px;
        }

        .product-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: flex-start;
        }

        .product-tabs .tab-item {
            position: relative;
        }

        .product-tabs .tab-item > a {
            display: inline-flex;
            align-items: center;
            padding: 12px 24px;
            font-size: 15px;
            color: var(--text-dark);
            background: var(--white);
            border-radius: 8px;
            transition: all 0.3s ease;
            cursor: pointer;
            border: 1px solid transparent;
        }

        .product-tabs .tab-item:hover > a,
        .product-tabs .tab-item.active > a {
            color: var(--primary-color);
            border-color: var(--primary-color);
            box-shadow: 0 2px 10px rgba(22, 80, 147, 0.15);
        }

        /* 有二级栏目的箭头指示 */
        .product-tabs .tab-item.has-sub > a {
            padding-right: 40px;
        }

        .product-tabs .tab-item.has-sub > a::after {
            content: '';
            position: absolute;
            right: 15px;
            top: 50%;
            transform: translateY(-50%);
            width: 6px;
            height: 6px;
            border-right: 2px solid var(--text-gray);
            border-bottom: 2px solid var(--text-gray);
            transform: translateY(-50%) rotate(45deg);
            transition: all 0.3s ease;
        }

        .product-tabs .tab-item.has-sub:hover > a::after,
        .product-tabs .tab-item.has-sub.active > a::after {
            border-color: var(--primary-color);
            transform: translateY(-50%) rotate(-135deg);
        }

        /* 二级栏目下拉 - 大面板样式 */
        .product-tabs .sub-tabs-panel {
            position: absolute;
            top: 100%;
            left: 0;
            min-width: 500px;
            max-width: 700px;
            background: var(--white);
            border-radius: 12px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.15);
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.3s ease;
            padding: 20px;
            z-index: 100;
            margin-top: 5px;
        }

        .product-tabs .tab-item:hover .sub-tabs-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .product-tabs .sub-tabs-panel .panel-header {
            display: flex;
            gap: 20px;
            padding-bottom: 15px;
            margin-bottom: 15px;
            border-bottom: 1px solid var(--bg-light);
        }

        .product-tabs .sub-tabs-panel .panel-header .img {
            width: 100px;
            height: 100px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .product-tabs .sub-tabs-panel .panel-header .img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .product-tabs .sub-tabs-panel .panel-header .info {
            flex: 1;
        }

        .product-tabs .sub-tabs-panel .panel-header .info h4 {
            font-size: 16px;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .product-tabs .sub-tabs-panel .panel-header .info p {
            font-size: 13px;
            color: var(--text-gray);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .product-tabs .sub-tabs-panel .panel-body {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
        }

        .product-tabs .sub-tabs-panel .panel-body a {
            display: block;
            padding: 10px 15px;
            font-size: 14px;
            color: var(--text-dark);
            background: var(--bg-light);
            border-radius: 6px;
            transition: all 0.3s ease;
        }

        .product-tabs .sub-tabs-panel .panel-body a:hover {
            background: var(--primary-color);
            color: var(--white);
        }

        .product-tabs .sub-tabs-panel .panel-body a.active {
            background: var(--primary-color);
            color: var(--white);
        }

        /* 简单下拉样式（无图片描述） */
        .product-tabs .sub-tabs-simple {
            position: absolute;
            top: 100%;
            left: 0;
            min-width: 180px;
            background: var(--white);
            border-radius: 8px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.15);
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.3s ease;
            padding: 10px 0;
            z-index: 100;
            margin-top: 5px;
        }

        .product-tabs .tab-item:hover .sub-tabs-simple {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .product-tabs .sub-tabs-simple a {
            display: block;
            padding: 12px 20px;
            font-size: 14px;
            color: var(--text-dark);
            transition: all 0.3s ease;
        }

        .product-tabs .sub-tabs-simple a:hover {
            background: rgba(22, 80, 147, 0.05);
            color: var(--primary-color);
            padding-left: 25px;
        }

        .product-tabs .sub-tabs-simple a.active {
            color: var(--primary-color);
            font-weight: 600;
        }

        /* 移动端Tab样式 */
        .product-tabs-mobile {
            display: none;
            margin-bottom: 20px;
        }

        .product-tabs-mobile .mobile-tab-btn {
            width: 100%;
            padding: 15px 20px;
            font-size: 16px;
            border: 1px solid #e0e0e0;
            border-radius: 8px;
            background: var(--white);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .product-tabs-mobile .mobile-tab-btn i {
            transition: transform 0.3s ease;
        }

        .product-tabs-mobile .mobile-tab-btn.active i {
            transform: rotate(180deg);
        }

        .product-tabs-mobile .mobile-tab-content {
            display: none;
            margin-top: 10px;
            background: var(--white);
            border-radius: 8px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.1);
            padding: 15px;
        }

        .product-tabs-mobile .mobile-tab-content.active {
            display: block;
        }

        .product-tabs-mobile .mobile-tab-content .mobile-sub-item {
            padding: 12px 15px;
            font-size: 14px;
            color: var(--text-dark);
            border-bottom: 1px solid var(--bg-light);
            cursor: pointer;
        }

        .product-tabs-mobile .mobile-tab-content .mobile-sub-item:last-child {
            border-bottom: none;
        }

        .product-tabs-mobile .mobile-tab-content .mobile-sub-item:hover,
        .product-tabs-mobile .mobile-tab-content .mobile-sub-item.active {
            color: var(--primary-color);
        }

        .product-tabs-mobile .mobile-tab-content .mobile-sub-sub {
            display: none;
            padding-left: 15px;
        }

        .product-tabs-mobile .mobile-tab-content .mobile-sub-item.open .mobile-sub-sub {
            display: block;
        }

        .product-tabs-mobile .mobile-tab-content .mobile-sub-sub a {
            display: block;
            padding: 10px 15px;
            font-size: 13px;
            color: var(--text-gray);
        }

        .product-tabs-mobile .mobile-tab-content .mobile-sub-sub a:hover {
            color: var(--primary-color);
        }

        /* 产品网格布局 */
        .product-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .product-item {
            background: var(--white);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 15px rgba(0,0,0,0.08);
            transition: all 0.4s ease;
            display: block;
        }

        .product-item:hover {
            transform: translateY(-8px);
            box-shadow: 0 10px 30px rgba(0,0,0,0.12);
        }

        .product-item .img-box {
            position: relative;
            height:240px;
            overflow: hidden;
            background: var(--bg-light);
        }

        .product-item .img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .product-item:hover .img-box img {
            transform: scale(1.08);
        }

        .product-item .img-box .overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, transparent 50%);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .product-item:hover .img-box .overlay {
            opacity: 1;
        }

        .product-item .img-box .view-btn {
            position: absolute;
            bottom: 15px;
            left: 50%;
            transform: translateX(-50%) translateY(20px);
            padding: 8px 20px;
            background: var(--primary-color);
            color: var(--white);
            border-radius: 20px;
            font-size: 13px;
            opacity: 0;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .product-item:hover .img-box .view-btn {
            opacity: 1;
            transform: translateX(-50%) translateY(0);
        }

        .product-item .info {
            padding: 18px;
        }

        .product-item .info h4 {
            font-size: 15px;
            color: var(--text-dark);
            margin-bottom: 8px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .product-item .info p {
            font-size: 13px;
            color: var(--text-gray);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* 响应式设计 */
        @media (max-width: 1200px) {
            .product-grid {
                grid-template-columns: repeat(3, 1fr);
            }

            .product-tabs .sub-tabs-panel {
                min-width: 400px;
            }

            .product-tabs .sub-tabs-panel .panel-body {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 1024px) {
            .product-tabs {
                display: none;
            }

            .product-tabs-mobile {
                display: block;
            }

            .product-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 768px) {
            .product-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 15px;
            }

            .product-item .img-box {
                height: 160px;
            }
        }

        @media (max-width: 576px) {
            .product-grid {
                grid-template-columns: 1fr;
            }
        }

        /* WOW.js 动画初始样式 */
        .wow {
            visibility: hidden;
        }