/* 复用全局样式变量 */
        :root { 
            --main-blue:#165DFF; 
            --accent-orange: #ff6a00; 
            --bg-light: #f4f7f9; 
            --footer-blue: #33a3dc; /* 截图中的天蓝色 */
        }
       

        /* 1. 头部与导航 */
        header { background: #fff; padding: 15px 0; }
        .header-flex { display: flex; justify-content: space-between; align-items: center; }
        .phone { font-size: 20px; color: var(--main-blue); font-weight: bold; }

        .main-nav { background: #fff; border-top: 1px solid #eee; position: sticky; top: 0; z-index: 1000; box-shadow: 0 2px 5px rgba(0,0,0,0.05); }
        .nav-list { display: flex; justify-content: space-between; list-style: none; }
        .nav-list > li { position: relative; }
        .nav-list > li > a { display: block; padding: 15px 10px; color: #333; font-size: 16px; text-decoration: none; transition: 0.3s; }
        .nav-list > li > a:hover, .nav-list > li > a.active { color: #165DFF; border-bottom: 2px solid #165DFF; }

        /* 下拉菜单 */
        .dropdown:hover .submenu { display: block; }
        .submenu { 
            display: none; position: absolute; top: 100%; left: 0; background: #fff; 
            min-width: 160px; box-shadow: 0 5px 15px rgba(0,0,0,0.1); border-top: 2px solid #165DFF; list-style: none; 
        }
        .submenu li a { display: block; padding: 10px 20px; color: #666; font-size: 14px; text-decoration: none; }
        .submenu li a:hover { background: #e8f3ff; color: #165DFF; }

 /* 基础复位 */

 * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: "PingFang SC", "Microsoft YaHei", sans-serif; color: #333; background: #fff; line-height: 1.6; }
        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 15px; }
        img { max-width: 100%; display: block; }
        a { text-decoration: none; color: inherit; transition: 0.3s; }
		
		
		
		
        /* 面包屑导航 */
        .breadcrumb { background: var(--bg-light); padding: 15px 0; font-size: 14px; color: #888; }
        .breadcrumb a:hover { color: var(--main-blue); }

        /* 产品主区域布局 */
        .product-main { display: flex; gap: 30px; padding: 40px 0 80px; }

        /* 左侧分类栏 */
        .sidebar { width: 280px; flex-shrink: 0; }
        .sidebar-box { border: 1px solid #eee; margin-bottom: 30px; border-radius: 4px; overflow: hidden; }
        .sidebar-title { background: var(--main-blue); color: #fff; padding: 15px 20px; font-size: 18px; font-weight: bold; }
        .cate-list { list-style: none; }
        .cate-list li a { display: block; padding: 12px 20px; border-bottom: 1px solid #f5f5f5; font-size: 15px; }
        .cate-list li a:hover, .cate-list li a.active { background: #e8f3ff; color: #165DFF; padding-left: 25px; }

        /* 右侧产品列表 */
        .product-content { flex: 1; }
        .list-header { display: flex; justify-content: space-between; align-items: center; border-bottom: 2px solid #eee; padding-bottom: 10px; margin-bottom: 30px; }
        .list-header h2 { color: var(--main-blue); font-size: 24px; }

        .product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 25px; }
        .product-card { border: 1px solid #eee; border-radius: 8px; overflow: hidden; transition: 0.3s; }
        .product-card:hover { border-color: #165DFF; box-shadow: 0 10px 20px rgba(0,0,0,0.1); transform: translateY(-5px); }
        .p-img { height: 220px; overflow: hidden; background: #f9f9f9; display: flex; align-items: center; justify-content: center; }
        .p-img img { width: 90%; height: 90%; object-fit: contain; }
        
        .p-info { padding: 20px; text-align: center; }
        .p-info h3 { font-size: 17px; margin-bottom: 10px; color: #333; height: 48px; display: flex; align-items: center; justify-content: center; }
        .btn-more { display: inline-block; padding: 8px 20px; border: 1px solid var(--main-blue); color: var(--main-blue); border-radius: 4px; font-size: 14px; }
        .product-card:hover .btn-more { background: var(--main-blue); color: #fff; }

        /* 分页 */
        .pagination { margin-top: 50px; display: flex; justify-content: center; gap: 10px; }
        .pagination a { padding: 8px 15px; border: 1px solid #ddd; border-radius: 4px; }
        .pagination a.active { background: var(--main-blue); color: #fff; border-color: var(--main-blue); }

        /* --- 底部 (复刻截图样式) --- */
        /* footer { background-color: #1a1a1a; color: #fff; padding: 60px 0 20px; }
        .footer-container { 
            max-width: 1200px; margin: 0 auto; padding: 0 15px; 
            display: flex; justify-content: space-between; align-items: center; 
            flex-wrap: wrap;
        }

        .footer-left { flex: 0 0 auto; }
        .footer-logo { margin-bottom: 25px; }
        .footer-logo img { height: 40px; }
         */
        /* 导航网格：4列2行 */
        /* .footer-nav-grid { 
            display: grid; grid-template-columns: repeat(4, auto); gap: 12px 35px; 
        }
        .footer-nav-grid a { color: #ccc; font-size: 14px; white-space: nowrap; }
        .footer-nav-grid a:hover { color: var(--accent-orange); }

        .footer-center { flex: 0 0 auto; }
        .qr-code-box { background: #fff; padding: 6px; border: 1px solid #444; line-height: 0; }
        .qr-code-box img { width: 100px; height: 100px; }

        .footer-right { flex: 0 0 auto; text-align: left; }
        .contact-group { margin-bottom: 20px; }
        .contact-label { color: #fff; font-size: 14px; margin-bottom: 5px; }
        .contact-phone { color:#fff; font-size: 28px; font-weight: bold; line-height: 1; }
        .contact-address { color: #ccc; font-size: 14px; margin-top: 5px; }

        .footer-bottom { 
            max-width: 1200px; margin: 50px auto 0; padding: 20px 15px 0; 
            border-top: 1px solid #2d2d2d; color: #666; font-size: 12px; text-align: center;
        } */
         footer { background-color: #1a1a1a; color: #fff; padding: 60px 0 20px; }
        .footer-container { display: flex; justify-content: space-between; gap: 40px; }
        .footer-nav-grid { display: grid; grid-template-columns: repeat(4, auto); gap: 12px 30px; margin-top: 20px; }
        .footer-nav-grid a { color: #ccc; font-size: 14px; }
        .footer-center .qr-code-box { background: #fff; padding: 5px; width: 110px; margin: 0 auto;}
        .footer-right { text-align: right; }
        .contact-phone { font-size: 28px; font-weight: bold; color: #fff; }
        .footer-bottom { margin-top: 50px; padding-top: 20px; border-top: 1px solid #2d2d2d; color: #666; font-size: 12px; text-align: center; }

        /* 响应式调整 */
        @media (max-width: 992px) {
            .footer-container { flex-direction: column; text-align: center; gap: 40px; }
            /* .footer-nav-grid { grid-template-columns: repeat(2, 1fr); gap: 15px 20px; }*/
            .footer-right { text-align: center; } 
            .sidebar { width: 100%; }
            .product-main { flex-direction: column; }
            .product-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .header-flex { flex-direction: column; gap: 10px; }
            .nav-list { overflow-x: auto; white-space: nowrap; justify-content: flex-start; }
            .product-grid { grid-template-columns: 1fr; }
            /* .footer-nav-grid { grid-template-columns: repeat(2, auto); } */
        }