/* 全局样式 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Helvetica Neue', Arial, sans-serif;
        }
        
        body {
            color: #333;
            line-height: 1.6;
            background-color: #f8f9fa;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .btn {
            display: inline-block;
            background: #0066ff;
            color: white;
            padding: 12px 30px;
            border-radius: 38px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        
        .btn:hover {
            background: #0052d4;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 102, 255, 0.2);
        }
        
        .btn-outline {
            background: transparent;
            border: 2px solid #0066ff;
            color: #0066ff;
        }
        
        .btn-outline:hover {
            background: #0066ff;
            color: white;
        }
        
        section {
            padding: 80px 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }
        
        .section-title h2 {
            font-size: 36px;
            color: #222;
            margin-bottom: 20px;
        }
        
        .section-title p {
            font-size: 18px;
            color: #666;
            max-width: 700px;
            margin: 0 auto;
        }
        
        /* 导航栏 */
        header {
            background: white;
            box-shadow: 0 2px 100px rgba(0, 0, 0, 0.1);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
        }
        
        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
        }
        
        .logoimg {
            width: 43.8%;
        }
        
		/* 当屏幕宽度小于680px时，应用以下样式 */
		@media (max-width: 680px) {
		  .logoimg {
			width: 95.8%;
		  }
		}
        .nav-links {
            display: flex;
            list-style: none;
        }
        
        .nav-links li {
            margin-left: 30px;
            position: relative;
        }
        
        .nav-links a {
            text-decoration: none;
            color: #333;
            font-weight: 500;
            transition: color 0.3s;
        }
        
        .nav-links a:hover {
            color: #0066ff;
        }
        
        .nav-links .submenu {
            display: none;
            position: absolute;
            background: white;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            border-radius: 4px;
            width: 200px;
            top: 100%;
            left: 0;
            padding: 10px 0;
            z-index: 100;
        }
        
        .nav-links li:hover .submenu {
            display: block;
        }
        
        .submenu li {
            margin: 0;
            padding: 0;
        }
        
        .submenu a {
            display: block;
            padding: 10px 20px;
        }
        
        .mobile-menu-btn {
            display: none;
            font-size: 24px;
            background: none;
            border: none;
            cursor: pointer;
        }
        
        /* 页面内容容器 */
        .page-content {
            display: none;
        }
        
        .page-content.active {
            display: block;
        }
        
        /* 英雄区域 */
        .hero {
            background: linear-gradient(135deg, #0066ff 0%, #0052d4 100%);
            color: white;
            padding: 100px 0 100px;
            margin-top: 80px;
        }
        
        .hero-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        
        .hero-text {
            flex: 1;
            text-align: center;
        }
        
        .hero-text h1 {
            font-size: 48px;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        
        .hero-text p {
            font-size: 20px;
            margin-bottom: 30px;
            opacity: 0.9;
        }
        
        .hero-buttons {
            gap: 15px;
        }
        
        .hero-image {
            flex: 1;
            text-align: center;
        }
        
        .hero-image img {
            max-width: 100%;
            border-radius: 8px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
        }
        
        /* 特性部分 */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        
        .feature-card {
            background: white;
            border-radius: 8px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            cursor: pointer;
        }
        
        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .feature-icon {
            font-size: 40px;
            color: #0066ff;
            margin-bottom: 20px;
        }
        
        .feature-card h3 {
            font-size: 20px;
            margin-bottom: 15px;
        }
        
        /* 客户评价 */
        .testimonials {
            background: #f8f9fa;
        }
        
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }
        
        .testimonial-card {
            background: white;
            border-radius: 8px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        
        .testimonial-text {
            font-style: italic;
            margin-bottom: 20px;
            position: relative;
        }
        
        .testimonial-text:before {
            content: """;
            font-size: 60px;
            color: #0066ff;
            opacity: 0.2;
            position: absolute;
            top: -20px;
            left: -15px;
        }
        
        .testimonial-author {
            display: flex;
            align-items: center;
        }
        
        .author-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: #ddd;
            margin-right: 15px;
            overflow: hidden;
        }
        
        .author-info h4 {
            font-size: 18px;
            margin-bottom: 5px;
        }
        
        .author-info p {
            color: #666;
            font-size: 14px;
        }
        
        /* 客户标志 */
        .clients {
            text-align: center;
        }
        
        .client-logos {
            display: flex;
            justify-content: center;
            align-items: center;
            flex-wrap: wrap;
            gap: 40px;
            margin-top: 40px;
        }
        
        .client-logo {
            opacity: 0.6;
            transition: opacity 0.3s;
            font-weight: 700;
            font-size: 18px;
        }
        
        .client-logo:hover {
            opacity: 1;
        }
        
        /* 行动召唤 */
        .cta {
            background: linear-gradient(135deg, #0066ff 0%, #0052d4 100%);
            color: white;
            text-align: center;
            padding: 80px 0;
        }
        
        .cta h2 {
            font-size: 36px;
            margin-bottom: 20px;
        }
        
        .cta p {
            font-size: 20px;
            margin-bottom: 30px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }
        
        /* 产品二级页面样式 */
        .product-hero {
            background: linear-gradient(135deg, #0066ff 0%, #0052d4 100%);
            color: white;
            padding: 140px 0 60px;
            margin-top: 80px;
        }
        
        .product-detail {
            background: white;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            padding: 40px;
            margin-top: -60px;
            position: relative;
        }
        
        .product-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
            margin: 40px 0;
        }
        
        .product-feature {
            display: flex;
            align-items: flex-start;
        }
        
        .product-feature-icon {
            font-size: 24px;
            color: #0066ff;
            margin-right: 15px;
            flex-shrink: 0;
        }
        
        .pricing-plans {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin: 40px 0;
        }
        
        .pricing-plan {
            background: white;
            border-radius: 8px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            text-align: center;
            transition: transform 0.3s ease;
        }
        
        .pricing-plan:hover {
            transform: translateY(-5px);
        }
        
        .pricing-plan.popular {
            border: 2px solid #0066ff;
            position: relative;
        }
        
        .pricing-plan.popular:before {
            content: "最受欢迎";
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: #0066ff;
            color: white;
            padding: 4px 15px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
        }
        
        .plan-price {
            font-size: 36px;
            font-weight: 700;
            color: #0066ff;
            margin: 20px 0;
        }
        
        .plan-price span {
            font-size: 16px;
            color: #666;
            font-weight: normal;
        }
        
        .plan-features {
            list-style: none;
            margin: 20px 0;
        }
        
        .plan-features li {
            padding: 8px 0;
            border-bottom: 1px solid #eee;
        }
        
        /* 页脚 */
        footer {
            background: #1a1a1a;
            color: #fff;
            padding: 60px 0 30px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        
        .footer-column h3 {
            font-size: 18px;
            margin-bottom: 20px;
            color: #fff;
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 10px;
        }
        
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-links a:hover {
            color: #0066ff;
        }
        
        .footer-bottom {
            text-align: center;
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid #333;
            color: #666;
            font-size: 14px;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .features-grid, .product-features, .pricing-plans {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .hero-content {
                flex-direction: column;
            }
            
            .hero-text {
                padding-right: 0;
                margin-bottom: 40px;
                text-align: center;
            }
            
            .hero-buttons {
                justify-content: center;
            }
            
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .features-grid, .product-features, .pricing-plans {
                grid-template-columns: 1fr;
            }
            
            .hero-text h1 {
                font-size: 36px;
            }
            
            .section-title h2 {
                font-size: 30px;
            }
            
            .footer-content {
                grid-template-columns: 1fr;
            }
        }