* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
        }
        
        .container {
            max-width: 1310px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        /* Banner 样式 - 无边框全宽 */
        .banner {
            height: 300px;
            background: linear-gradient(135deg, #1e5799 0%, #207cca 51%, #2989d8 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 30px;
            position: relative;
            overflow: hidden;
            border: none;
        }
        
        .banner::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><polygon points="0,0 100,100 0,100" fill="rgba(255,255,255,0.1)"/></svg>');
            background-size: 100% 100%;
        }
        
        .banner h1 {
            color: white;
            font-size: 3rem;
            text-shadow: 0 2px 10px rgba(0,0,0,0.3);
            z-index: 1;
            text-align: center;
            padding: 0 20px;
        }
        
        /* 面包屑导航 */
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: #666;
            margin-bottom: 20px;
            border-bottom: 1px solid #eee;
        }
        
        .breadcrumb a {
            color: #0066cc;
            text-decoration: none;
            transition: color 0.2s;
        }
        
        .breadcrumb a:hover {
            color: #004080;
            text-decoration: underline;
        }
        
        .breadcrumb span {
            margin: 0 8px;
            color: #999;
        }
        
        /* 多级导航 - PC端 */
        .category-nav {
            background: white;
            border-radius: 8px;
            box-shadow: 0 2px 15px rgba(0,0,0,0.05);
            margin-bottom: 30px;
            padding: 15px;
            position: relative;
            z-index: 10;
        }
        
        .nav-container {
            display: flex;
            flex-wrap: wrap;
        }
        
        .nav-item1 {
            position: relative;
            width: 20%;
            padding: 10px 15px;
            border-right: 1px solid #f0f0f0;
        }
        
        .nav-item1:last-child {
            border-right: none;
        }
        
        .nav-item1 > a {
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: #333;
            text-decoration: none;
            font-weight: 500;
            padding: 8px 0;
            transition: color 0.2s;
        }
        
        .nav-item1 > a:hover {
            color: #0066cc;
        }
        
        .nav-item1 > a i {
            font-size: 0.8rem;
            color: #999;
            transition: transform 0.3s;
        }
        
        .sub-nav {
            position: absolute;
            top: 100%;
            left: 0;
            width: 200px;
            background: white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            border-radius: 0 0 8px 8px;
            padding: 10px 0;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.3s ease;
            z-index: 100;
        }
        
        .nav-item1:hover .sub-nav {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        
        .sub-nav-item1 {
            position: relative;
            padding: 8px 20px;
        }
        
        .sub-nav-item1 a {
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: #555;
            text-decoration: none;
            transition: color 0.2s;
        }
        
        .sub-nav-item1 a:hover {
            color: #0066cc;
        }
        
        .sub-nav-item1 a i {
            font-size: 0.7rem;
            color: #999;
        }
        
        .sub-sub-nav {
            position: absolute;
            left: 100%;
            top: 0;
            width: 180px;
            background: white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            border-radius: 0 8px 8px 8px;
            padding: 10px 0;
            opacity: 0;
            visibility: hidden;
            transform: translateX(10px);
            transition: all 0.3s ease;
        }
        
        .sub-nav-item1:hover .sub-sub-nav {
            opacity: 1;
            visibility: visible;
            transform: translateX(0);
        }
        
        .sub-sub-nav-item1 {
            padding: 8px 20px;
        }
        
        .sub-sub-nav-item1 a {
            color: #777;
            text-decoration: none;
            transition: color 0.2s;
        }
        
        .sub-sub-nav-item1 a:hover {
            color: #0066cc;
        }
        
        /* 产品展示 */
        .product-section {
            margin-bottom: 40px;
        }
        
        .section-title {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: #222;
            position: relative;
            padding-bottom: 10px;
        }
        
        .section-title::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background: #0066cc;
            border-radius: 3px;
        }
        
        .products-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
            margin-bottom: 30px;
        }
        
        .product-card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 3px 10px rgba(0,0,0,0.08);
            transition: all 0.3s ease;
            position: relative;
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        
        .product-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.15);
            background-color: #f9f9f9;
        }
        
        .product-image {
            height: 200px;
            overflow: hidden;
            position: relative;
            background: #f0f0f0;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .product-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .product-card:hover .product-image img {
            transform: scale(1.05);
        }
        
        .product-info {
            padding: 15px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        
        .product-name {
            font-weight: 600;
            margin-bottom: 10px;
            color: #333;
            font-size: 1.1rem;
            flex-grow: 1;
            text-align: center;
        }
        
        .product-price {
            color: #e53935;
            font-weight: 700;
            font-size: 1.2rem;
            margin-top: auto;
            text-align: center;
        }
        
        /* 分页 */
        .pagination {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            margin: 30px 0 50px;
        }
        
        .pagination-info {
            width: 100%;
            text-align: center;
            margin-bottom: 15px;
            color: #666;
            font-size: 0.95rem;
        }
        
        .pagination-links {
            display: flex;
            gap: 8px;
        }
        
        .pagination a, 
        .pagination span {
            display: inline-block;
            padding: 8px 16px;
            text-decoration: none;
            border-radius: 5px;
            transition: all 0.2s;
            min-width: 40px;
            text-align: center;
        }
        
        .pagination a {
            color: #0066cc;
            background: white;
            border: 1px solid #ddd;
        }
        
        .pagination a:hover {
            background: #f0f7ff;
            border-color: #a3d0ff;
        }
        
        .pagination .current {
            background: #0066cc;
            color: white;
            border: 1px solid #0066cc;
            font-weight: 600;
        }
        
        .pagination .disabled {
            color: #999;
            background: #f5f5f5;
            cursor: not-allowed;
            border: 1px solid #eee;
        }
        
        /* 移动端样式 */
        @media (max-width: 992px) {
            .nav-item1 {
                width: 33.333%;
            }
            
            .products-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        
        @media (max-width: 768px) {
            .banner {
                height: 200px;
            }
            
            .banner h1 {
                font-size: 2.2rem;
            }
            
            .nav-item1 {
                width: 50%;
                border-bottom: 1px solid #f0f0f0;
                border-right: none;
            }
            
            /* 移动端产品展示调整为两列 */
            .products-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 15px;
            }
            
            .product-image {
                height: 180px;
            }
            
            .pagination-links {
                flex-wrap: wrap;
                justify-content: center;
            }
            
            .pagination a, 
            .pagination span {
                padding: 6px 12px;
                margin: 2px;
            }
        }
        
        @media (max-width: 576px) {
            .banner {
                height: 180px;
            }
            
            .banner h1 {
                font-size: 1.8rem;
            }
            
            .nav-item1 {
                width: 100%;
            }
            
            /* 在更小的移动设备上保持两列布局 */
            .products-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            
            .product-image {
                height: 160px;
            }
            
            .product-name {
                font-size: 1rem;
            }
            
            .pagination a, 
            .pagination span {
                padding: 6px 10px;
                font-size: 0.9rem;
            }
        }
        
        /* 移动端导航交互 */
        .mobile-nav {
            display: none;
        }
        
        .mobile-toggle {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 15px;
            background: #f8f9fa;
            border-radius: 5px;
            margin-bottom: 8px;
            cursor: pointer;
            font-weight: 500;
        }
        
        .mobile-toggle i {
            transition: transform 0.3s;
        }
        
        .mobile-toggle.active i {
            transform: rotate(180deg);
        }
        
        .mobile-subnav {
            display: none;
            padding: 0 15px 10px;
            background: #f8f9fa;
            border-radius: 0 0 5px 5px;
        }
        
        .mobile-subnav-item1 {
            padding: 8px 0;
            border-bottom: 1px solid #eee;
        }
        
        .mobile-subnav-item1:last-child {
            border-bottom: none;
        }
        
        .mobile-subnav-item1 > a {
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: #555;
            text-decoration: none;
            padding: 5px 0;
        }
        
        .mobile-subnav-item1.has-children > a::after {
            content: "›";
            font-size: 1.2rem;
            transition: transform 0.3s;
        }
        
        .mobile-subnav-item1.has-children.active > a::after {
            transform: rotate(90deg);
        }
        
        .mobile-subsubnav {
            display: none;
            padding: 10px 0 0 15px;
        }
        
        .mobile-subsubnav-item1 {
            padding: 6px 0;
        }
        
        .mobile-subsubnav-item1 a {
            color: #777;
            text-decoration: none;
            display: block;
            padding: 5px 10px;
            border-left: 2px solid #ddd;
        }
        
        @media (max-width: 992px) {
            .nav-container {
                display: none;
            }
            
            .mobile-nav {
                display: block;
            }
        }
        
        /* 指示器 */
        .has-children > a:after {
            content: "›";
            margin-left: 5px;
            font-size: 1.2rem;
        }
        
        /* 最终栏目样式 */
        .final-category {
            color: #777;
            font-weight: 600;
        }

    
   
    /* 重置Font Awesome默认样式 */
.fa-chevron-down::before,
.fa-chevron-right::before {
  content: "" !important;
  font-family: inherit !important;
}

/* 基础箭头样式 */
.fa-chevron-down,
.fa-chevron-right {
  display: inline-block;
  position: relative;
  width: 12px;
  height: 12px;
  transition: transform 0.3s ease;
  vertical-align: middle;
  margin: 0 4px;
}

/* 向下箭头 */
.fa-chevron-down::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid #555;
  transform: translate(-50%, -30%);
}

/* 向右箭头 */
.fa-chevron-right::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  border-left: 6px solid #555;
  transform: translate(-30%, -50%);
}