/* CSS Document */

 * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Arial', 'Microsoft YaHei', sans-serif;
        }
        
        :root {
            --primary-color: #2c5c8e;
            --accent-color: #d5634a;
            --text-color: #333;
            --light-color: #fff;
            --gray-color: #f5f5f5;
            --dark-gray: #777;
            --border-color: #e0e0e0;
        }
        
        body {
            color: var(--text-color);
            line-height: 1.6;
            overflow-x: hidden;
        }
        
        a {
            text-decoration: none;
            color: inherit;
        }
        
        ul {
            list-style: none;
        }
        
        .container {
            width: 100%;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        /* 导航栏样式 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            transition: all 0.3s ease;
            background-color: var(--light-color);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }
        
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 5px 0;
        }
        
        .logo img {
            height: 70px;
            transition: all 0.3s ease;
        }
        
        .main-nav {
            display: flex;
            position: relative;
        }
        
        .nav-list {
            display: flex;
        }
        
        .nav-list > li {
            position: relative;
            margin: 0 15px;
        }
        
        .nav-list > li > a {
            color: var(--text-color);
            font-weight: 500;
            padding: 10px 0;
            transition: color 0.3s;
            display: flex;
            align-items: center;
        }
        
        .nav-list > li > a::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            margin-left: 5px;
            font-size: 12px;
        }
        
        .nav-list > li.active > a {
            color: var(--accent-color);
        }
        
        .nav-list > li:hover > a {
            color: var(--accent-color);
        }
        
        /* 二级菜单 */
        .sub-menu {
            position: absolute;
            top: 100%;
            left: 0;
            background-color: var(--light-color);
            width: 300px;
            padding: 15px 0;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            opacity: 0;
            visibility: hidden;
            transform: translateY(15px);
            transition: all 0.3s ease;
            border-radius: 4px;
            margin-top: 10px;
        }
        
        .nav-list > li:hover .sub-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        
        .sub-menu li {
            padding: 10px 20px;
            transition: background-color 0.2s;
        }
        
        .sub-menu li:hover {
            background-color: rgba(44, 92, 142, 0.05);
        }
        
        .sub-menu li a {
            color: var(--text-color);
            transition: color 0.3s;
            display: block;
        }
        
        .sub-menu li a:hover {
            color: var(--accent-color);
        }
        
        .nav-right {
            display: flex;
            align-items: center;
        }
        
        .nav-icon {
            color: var(--text-color);
            font-size: 18px;
            margin-left: 20px;
            cursor: pointer;
            transition: color 0.3s;
            position: relative;
        }
        
        .nav-icon:hover {
            color: var(--accent-color);
        }
        
        .search-box {
            position: absolute;
            top: 100%;
            right: 80px;
            background: var(--light-color);
            padding: 15px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            display: none;
            z-index: 1001;
            border-radius: 4px;
            margin-top: 10px;
        }
        
        .search-box.active {
            display: block;
        }
        
        .search-box input {
            border: 1px solid #ddd;
            padding: 8px 15px;
            width: 250px;
            border-radius: 4px;
        }
        
        .language-selector {
            position: absolute;
            top: 100%;
            right: 0;
            background: var(--light-color);
            padding: 15px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            display: none;
            z-index: 1001;
            border-radius: 4px;
            margin-top: 10px;
        }
        
        .language-selector.active {
            display: block;
        }
        
        .language-option {
            display: flex;
            align-items: center;
            padding: 8px 0;
            transition: background-color 0.2s;
        }
        
        .language-option:hover {
            background-color: rgba(44, 92, 142, 0.05);
        }
        
        .language-option img {
            width: 20px;
            height: 15px;
            margin-right: 10px;
            border-radius: 2px;
        }
        
        /* 移动端导航切换按钮 */
        .mobile-toggle {
            display: none;
            font-size: 24px;
            color: var(--text-color);
            cursor: pointer;
            padding-left: 50px;
        }
        
		
		
		/* 页脚样式 */
        .footer {
            background-color: #2a2a2a;
            color: var(--light-color);
            padding: 80px 0 30px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 40px;
            margin-bottom: 60px;
        }
        
        .footer-col h3 {
            font-size: 1.2rem;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-col h3:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 2px;
            background: var(--accent-color);
            transition: width 0.3s;
        }
        
        .footer-col:hover h3:after {
            width: 80px;
        }
        
        .footer-links li {
            margin-bottom: 12px;
        }
        
        .footer-links a {
            color: #ccc;
            transition: color 0.3s;
        }
        
        .footer-links a:hover {
            color: var(--accent-color);
        }
        
        .contact-info {
            color: #ccc;
        }
        
        .contact-info p {
            margin-bottom: 15px;
            display: flex;
            align-items: center;
        }
        
        .contact-info i {
            margin-right: 10px;
            color: var(--accent-color);
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #444;
            color: #999;
            font-size: 0.9rem;
        }
        
        /* 响应式设计 */
        @media (max-width: 1200px) {
            .footer-content {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        
        @media (max-width: 992px) {
            .mobile-toggle {
                display: block;
            }
            
            .main-nav {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 80%;
                height: calc(100vh - 80px);
                background: var(--light-color);
                flex-direction: column;
                transition: left 0.3s ease;
                overflow-y: auto;
                box-shadow: 5px 0 15px rgba(0, 0, 0, 0.1);
            }
            
            .main-nav.active {
                left: 0;
            }
            
            .nav-list {
                flex-direction: column;
                width: 100%;
            }
            
            .nav-list > li {
                margin: 0;
                width: 100%;
            }
            
            .nav-list > li > a {
                color: var(--text-color);
                padding: 15px 20px;
                border-bottom: 1px solid #eee;
            }
            
            .nav-list > li > a::after {
                content: '\f107';
                margin-left: auto;
            }
            
            .sub-menu {
                position: static;
                width: 100%;
                box-shadow: none;
                opacity: 1;
                visibility: visible;
                transform: none;
                display: none;
                background: rgba(44, 92, 142, 0.05);
                margin-top: 0;
            }
            
            .nav-list > li.active .sub-menu {
                display: block;
            }
            
            .nav-right {
                margin-left: auto;
            }
            
            /* 移动端产品列表布局 */
        
        }
        
        @media (max-width: 768px) {
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
            
        
        }
        
        @media (max-width: 576px) {
            .nav-container {
                padding: 15px 0;
            }
            
            .logo img {
                height: 40px;
            }
            
            .search-box {
                right: 60px;
            }
            
            .search-box input {
                width: 200px;
            }
            
            .footer-content {
                grid-template-columns: 1fr;
            }
            
        
        }