/* 自定义蓝色主色调（符合海外审美） */
        :root {
            --primary-color: #0F52BA; /* 沉稳商务蓝 */
            --secondary-color: #1A73E8;
            --light-blue: #F0F7FF;
            --dark-blue: #083378;
            --text-dark: #202124;
            --text-gray: #5F6368;
        }
        
        /* 全局样式 */
        body {
            font-family: 'Roboto', sans-serif;
            color: var(--text-dark);
            line-height: 1.6;
        }
        
        /* 导航栏样式 - 核心修改部分 */
        .navbar {
            background-color: white !important;
            box-shadow: 0 2px 8px rgba(0,0,0,0.08);
            padding: 1rem 0;
        }
        .navbar-brand {
            color: var(--primary-color) !important;
            font-weight: 700;
            font-size: 1.5rem;
            letter-spacing: -0.5px;
        }
        /* 导航容器布局调整 */
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }
        /* 导航菜单居中 */
        .nav-menu {
            display: flex;
            justify-content: center;
            flex: 1;
        }
        .nav-link {
            color: var(--text-gray) !important;
            font-weight: 500;
            margin: 0 10px;
            transition: color 0.3s;
            font-size: 0.95rem;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary-color) !important;
        }
        /* 右侧按钮区域 */
        .nav-actions {
            display: flex;
            align-items: center;
        }
        .btn-primary {
            background-color: var(--primary-color) !important;
            border-color: var(--primary-color) !important;
            padding: 0.6rem 1.5rem;
            font-weight: 500;
            border-radius: 4px;
        }
        .btn-primary:hover {
            background-color: var(--secondary-color) !important;
            border-color: var(--secondary-color) !important;
        }
        .btn-outline-primary {
            border-color: var(--primary-color) !important;
            color: var(--primary-color) !important;
            padding: 0.6rem 1.5rem;
            font-weight: 500;
            border-radius: 4px;
        }
        .btn-outline-primary:hover {
            background-color: var(--primary-color) !important;
            color: white !important;
        }
        .middle-line-space {
  /* 总宽度 */
  width: 300px;
  /* 让横线居中 */
  margin: 20px auto;
  /* 关键：通过边框实现横线，左右留空 */
  border-top: 1px solid #666;
  /* 左右内边距（控制两侧空白宽度） */
  padding: 0 20px;
  /* 消除默认高度 */
  height: 0;
}

 .left-line-space {
  /* 总宽度 */
  width: 30%;
  /* 让横线居中 */
  margin: 10px 20px 10px 0px;
  /* 关键：通过边框实现横线，左右留空 */
  border-top: 1px solid #fff;
  /* 左右内边距（控制两侧空白宽度） */
  padding: 0 20px;
  /* 消除默认高度 */
  height: 0;
}
        /* 轮播图样式 */
        .carousel-item {
            height: 650px;
        }
        .carousel-item img {
            object-fit: cover;
            height: 100%;
            filter: brightness(1);
        }
        .carousel-caption {
            bottom: 120px;
            text-align: left;
            max-width: 600px;
            left: 8%;
            right: auto;
        }
        .carousel-caption h1 {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        .carousel-caption p {
            font-size: 1.1rem;
            margin-bottom: 2rem;
            color: #f8f9fa;
        }
        
        /* 核心优势 */
        .feature-section {
            padding: 6rem 0;
        }
        .feature-card {
            background-color: white;
            border: none;
            box-shadow: 0 4px 20px rgba(15, 82, 186, 0.08);
            border-radius: 8px;
            transition: transform 0.3s;
            padding: 2.5rem 2rem;
            height: 100%;
        }
        .feature-card:hover {
            transform: translateY(-8px);
        }
        .feature-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-dark);
        }
        .section-subtitle {
            color: var(--text-gray);
            max-width: 600px;
            margin: 0 auto 4rem;
        }
        
        /* 商品展示 */
        .product-section {
            padding: 4rem 0 6rem;
            background-color: var(--light-blue);
        }
		
		.product-section2{
            padding: 4rem 0 6rem;
            background-color: #fff;
        }
        .product-card {
            border: none;
            border-radius: 8px;
            overflow: hidden;
            transition: all 0.3s;
            background-color: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            height: 100%;
        }
        .product-card:hover {
            box-shadow: 0 8px 25px rgba(15, 82, 186, 0.15);
        }
        .product-img {
            height: 220px;
            object-fit: cover;
        }
        .price {
            color: var(--primary-color);
            font-weight: 700;
            font-size: 1.3rem;
        }
        .product-title {
            font-weight: 600;
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
        }
        
        /* 配送与支付 */
        .shipping-section {
            padding: 4rem 0;
            background-color: white;
        }
        .payment-icon {
            font-size: 2rem;
            color: var(--text-gray);
            margin: 0 10px;
        }
        
        /* 联系我们（外贸核心） */
        .contact-section {
            padding: 6rem 0;
            background-color: var(--light-blue);
        }
        .contact-card {
            background-color: white;
            border-radius: 8px;
            padding: 3rem;
            box-shadow: 0 4px 20px rgba(15, 82, 186, 0.08);
        }
        .form-control {
            border: 1px solid #e0e0e0;
            padding: 0.8rem 1rem;
            border-radius: 4px;
        }
        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.2rem rgba(15, 82, 186, 0.1);
        }
        
        /* 页脚（外贸信息） */
        .footer {
            background-color: var(--dark-blue);
            color: white;
            padding: 4rem 0 2rem;
        }
        .footer-link {
            color: #d0d7e3;
            text-decoration: none;
            transition: color 0.3s;
            display: block;
            margin-bottom: 0.8rem;
        }
        .footer-link:hover {
            color: white;
        }
        .footer-title {
            font-weight: 600;
            font-size: 1.1rem;
            margin-bottom: 1.5rem;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .social-icon {
            font-size: 1.5rem;
            color: white;
            margin-right: 1.5rem;
            transition: color 0.3s;
        }
        .social-icon:hover {
            color: #b8d0f5;
        }
		
		  
        /* 产品图片轮播核心样式 */
        .product-gallery {
            width: 100%;
        }
        /* 缩略图导航 */
        .thumbnail-container {
            display: flex;
            gap: 10px;
            margin-top: 10px;
            overflow-x: auto;
            padding-bottom: 8px;
        }
        .thumbnail {
            width: 80px;
            height: 80px;
            object-fit: cover;
            cursor: pointer;
            border: 2px solid transparent;
            border-radius: 4px;
            transition: border-color 0.3s;
        }
        .thumbnail.active {
            border-color: var(--primary-color);
        }
        /* 主图展示区 */
        .main-image {
            height: 500px;
            object-fit: cover;
            border-radius: 8px;
            box-shadow: 0 2px 15px rgba(0,0,0,0.1);
        }
        
        /* 产品信息模块 */
        .product-info {
            padding: 2rem 0;
        }
        .product-title {
            font-size: 4rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-dark);
        }
        .product-price {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
        }
        .product-specs {
            background-color: var(--light-blue);
            padding: 1.5rem;
            border-radius: 8px;
            margin-bottom: 2rem;
        }
        .spec-item {
            display: flex;
            justify-content: space-between;
             
            border-bottom: 1px solid var(--border-gray);
        }
        .spec-item:last-child {
            border-bottom: none;
        }
        .spec-label {
            font-weight: 500;
            color: var(--text-dark);
        }
        .spec-value {
            color: var(--text-gray);
        }
        
        /* 订购表单 */
        .order-form {
            background-color: white;
            padding: 2rem;
            border-radius: 8px;
            box-shadow: 0 4px 20px rgba(15, 82, 186, 0.08);
            margin-bottom: 3rem;
        }
        .form-control {
            border: 1px solid var(--border-gray);
            padding: 0.8rem 1rem;
            border-radius: 4px;
        }
        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.2rem rgba(15, 82, 186, 0.1);
        }
        
        /* 产品详情标签页 */
        .product-tabs {
            margin: 3rem 0;
        }
        .nav-tabs {
            border-bottom: 1px solid var(--border-gray);
        }
        .nav-tabs .nav-link {
            border: none;
            color: var(--text-gray);
            font-weight: 600;
            padding: 1rem 1.5rem;
        }
        .nav-tabs .nav-link.active {
            color: var(--primary-color);
            border-bottom: 2px solid var(--primary-color);
            background-color: transparent;
        }
        .tab-content {
            padding: 2rem 0;
        }
        
        /* 相关产品 */
        .related-products {
            padding: 3rem 0;
            background-color: var(--light-blue);
        }
        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 2rem;
            color: var(--text-dark);
            text-align: center;
        }
        .related-card {
            border: none;
            border-radius: 8px;
            overflow: hidden;
            transition: all 0.3s;
            background-color: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            height: 100%;
        }
        .related-card:hover {
            box-shadow: 0 8px 25px rgba(15, 82, 186, 0.15);
        }
        .related-img {
            height: 180px;
            object-fit: cover;
        }
        .related-title {
            font-weight: 600;
            font-size: 1rem;
            margin-bottom: 0.5rem;
        }
        .related-price {
            color: var(--primary-color);
            font-weight: 700;
        }
        
        /* 响应式适配 */
        @media (max-width: 992px) {
            .main-image {
                height: 400px;
            }
        }
        @media (max-width: 768px) {
            .main-image {
                height: 300px;
            }
            .product-title {
                font-size: 1.5rem;
            }
            .product-price {
                font-size: 1.5rem;
            }
            .order-form {
                padding: 1.5rem;
            }
        }
	.position a{color:#fff;text-decoration: none; }	
	.position a:hover{color:#2196f3;}	
 /* 页面标题 */
        .page-header {
            padding: 2rem 0;
            background-color: var(--light-blue);
            margin-bottom: 2rem;
        }
        .page-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-dark);
        }
        .page-subtitle {
            color: var(--text-gray);
            max-width: 800px;
        }

        /* 筛选栏 */
        .filter-section {
            background-color: white;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            margin-bottom: 2rem;
        }
        .filter-title {
            font-weight: 600;
            font-size: 1.1rem;
            margin-bottom: 1rem;
            color: var(--text-dark);
        }
        .form-select {
            border: 1px solid var(--border-gray);
            padding: 0.6rem 1rem;
            border-radius: 4px;
            color: var(--text-gray);
        }
        .form-select:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.2rem rgba(15, 82, 186, 0.1);
        }

        /* 产品列表卡片 */
        .product-grid {
            margin-bottom: 3rem;
        }
        .product-card {
            border: none;
            border-radius: 8px;
            overflow: hidden;
            transition: all 0.3s;
            background-color: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            height: 100%;
        }
		.product-card a{
			text-decoration: none;
        }
        .product-card:hover {
            box-shadow: 0 8px 25px rgba(15, 82, 186, 0.15);
            transform: translateY(-5px);
        }
        .product-img {
            height: 200px;
            object-fit: cover;
        }
        .product-card-body {
            padding: 1.5rem;
        }
        .product-title {
            font-weight: 600;
            font-size: 1.1rem;
            margin-bottom: 0.8rem;
            color: var(--text-dark);
        }
        .product-desc {
            color: var(--text-gray);
            font-size: 0.9rem;
            margin-bottom: 1rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .product-price {
            color: var(--primary-color);
            font-weight: 700;
            font-size: 1.3rem;
            margin-bottom: 1rem;
        }
        .product-spec {
            font-size: 0.85rem;
            color: var(--text-gray);
            margin-bottom: 0.3rem;
        }

        /* 分页样式 */
        .pagination-section {
            display: flex;
            justify-content: center;
            margin: 3rem 0;
        }
        .pagination {
            gap: 8px;
        }
		.pagination li {
			background-color:#fff;
            color: var(--text-gray);
            border: 1px solid #d9ebff;
            border-radius: 4px !important;
            padding: 10px 20px;
            font-weight: 500;
        }
		.pagination li a{
			text-decoration: none;
        }
		.pagination .active{
			border:1px var(--primary-color) solid;
            background-color:var(--primary-color) !important;
			color:#fff;
        }
		
        .page-link {
            color: var(--text-gray);
            border: 1px solid var(--border-gray);
            border-radius: 4px !important;
            padding: 0.8rem 1.2rem;
            font-weight: 500;
        }
        .page-link:hover {
            color: var(--primary-color);
            border-color: var(--primary-color);
            background-color: transparent;
        }
        .page-item.active .page-link {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
        }

        /* 响应式适配 */
        @media (max-width: 992px) {
            .product-img {
                height: 180px;
            }
        }
        @media (max-width: 768px) {
            .page-title {
                font-size: 1.8rem;
            }
            .filter-section {
                padding: 1rem;
            }
            .product-img {
                height: 160px;
            }
            .page-link {
                padding: 0.6rem 0.9rem;
            }
        }		
		
		
        @media (min-width: 1400px) {
.container, .container-lg, .container-md, .container-sm, .container-xl, .container-xxl {
    max-width: 90% !important;
}
.me-auto {
    margin-right: auto !important;
    margin-left: auto !important;
}
}
        /* 响应式适配 */
        @media (max-width: 768px) {
            .carousel-item {
                height: 350px;
            }
            .carousel-caption h1 {
                font-size: 1.8rem;
            }
            .carousel-caption p {
                font-size: 0.9rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .contact-card {
                padding: 2rem 1.5rem;
            }
        }
		
		
	 /* ========== 新增：回到顶部按钮样式 ========== */
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--primary-color);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            box-shadow: 0 4px 12px rgba(15, 82, 186, 0.3);
            cursor: pointer;
            transition: all 0.3s ease;
            opacity: 0;
            visibility: hidden;
            z-index: 9999;
        }
        
        .back-to-top:hover {
            background-color: var(--secondary-color);
            transform: translateY(-3px);
        }
        
        .back-to-top.show {
            opacity: 1;
            visibility: visible;
        }