* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        
        body {
            color: #333;
            line-height: 1.6;
            background-color: #f8f9fa;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 头部样式 */
        header {
            background-color: #005aa3;
            color: white;
            padding: 15px 0;
           /* position: sticky;*/
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            display: flex;
            align-items: center;
        }
        
        .logo i {
            margin-right: 10px;
            color: #ffcc00;
        }
        
        nav ul {
            display: flex;
            list-style: none;
        }
        
        nav ul li {
            margin-left: 30px;
        }
        
        nav ul li a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s;
        }
        
        nav ul li a:hover {
            color: #ffcc00;
        }
        
        /* Banner区域 */
        .banner {
            background: linear-gradient(135deg, #005aa3 0%, #0085d6 100%);
            color: white;
            padding: 80px 0;
            text-align: center;
            margin-bottom: 60px;
        }
        
        .banner h1 {
            font-size: 3.2rem;
            margin-bottom: 20px;
            line-height: 1.2;
            text-shadow: 0 2px 5px rgba(0,0,0,0.2);
        }
        
        .banner p {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto;
            opacity: 0.9;
        }
        
        /* 业务介绍 */
        .services {
            margin-bottom: 70px;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 50px;
            color: #005aa3;
            font-size: 2.2rem;
            position: relative;
        }
        
        .section-title:after {
            content: '';
            display: block;
            width: 80px;
            height: 4px;
            background-color: #ffcc00;
            margin: 15px auto;
            border-radius: 2px;
        }
        
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }
        
        .service-card {
            background: white;
            border-radius: 10px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: transform 0.3s, box-shadow 0.3s;
            border-top: 4px solid #005aa3;
        }
        
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        
        .service-icon {
            font-size: 2.5rem;
            color: #005aa3;
            margin-bottom: 20px;
        }
        
        .service-card h3 {
            margin-bottom: 15px;
            color: #005aa3;
            font-size: 1.4rem;
        }
        
        .service-card p {
            color: #666;
        }
        
        /* 常见问题 */
        .faq {
            margin-bottom: 70px;
        }
        
        .faq-container {
            background: white;
            border-radius: 10px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        
        .faq-item {
            margin-bottom: 25px;
            border-bottom: 1px solid #eee;
            padding-bottom: 25px;
        }
        
        .faq-item:last-child {
            margin-bottom: 0;
            border-bottom: none;
        }
        
        .faq-question {
            color: #005aa3;
            font-weight: 600;
            font-size: 1.2rem;
            margin-bottom: 10px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .faq-question:after {
            content: '+';
            font-size: 1.5rem;
            color: #005aa3;
        }
        
        .faq-answer {
            color: #555;
            line-height: 1.7;
            display: none;
        }
        
        .faq-item.active .faq-answer {
            display: block;
        }
        
        .faq-item.active .faq-question:after {
            content: '-';
        }
        
        /* 客户评价 */
        .testimonials {
            margin-bottom: 70px;
        }
        
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .testimonial-card {
            background: white;
            border-radius: 10px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            position: relative;
        }
        
        .testimonial-card:before {
            content: '"';
            position: absolute;
            top: 10px;
            left: 20px;
            font-size: 4rem;
            color: #ffcc00;
            opacity: 0.3;
            font-family: Georgia, serif;
        }
        
        .rating {
            color: #ffcc00;
            margin-bottom: 15px;
        }
        
        .client-name {
            font-weight: 600;
            margin-top: 20px;
            color: #005aa3;
            text-align: right;
        }
        
        /* 热门话题 */
        .topics {
            margin-bottom: 70px;
        }
        
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        
        @media (max-width: 768px) {
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .topic-btn {
            display: inline-block;
            background: #005aa3;
            color: white;
            text-decoration: none;
            padding: 12px 20px;
            border-radius: 30px;
            text-align: center;
            font-weight: 500;
            transition: all 0.3s;
            border: 2px solid #005aa3;
        }
        
        .topic-btn:hover {
            background: white;
            color: #005aa3;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        
        /* 页脚 */
        footer {
            background-color: #003a6d;
            color: white;
            padding: 40px 0 20px;
        }
        
        .footer-content {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            margin-bottom: 30px;
        }
        
        .footer-column {
            flex: 1;
            min-width: 250px;
            margin-bottom: 30px;
            padding-right: 20px;
        }
        
        .footer-column h3 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            color: #ffcc00;
        }
        
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            opacity: 0.8;
        }
        
        .keyword {
            font-weight: bold;
        }
        
        /* 响应式调整 */
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                text-align: center;
            }
            
            nav ul {
                margin-top: 15px;
                justify-content: center;
            }
            
            nav ul li {
                margin: 0 10px;
            }
            
            .banner h1 {
                font-size: 2.5rem;
            }
            
            .banner p {
                font-size: 1.1rem;
                padding: 0 15px;
            }
        }