* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: Arial, sans-serif;
        }
        
        body {
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        /* 顶部导航 */
        header {
            background-color: #fff;
            padding: 20px 0;
            border-bottom: 1px solid #eaeaea;
            margin-bottom: 30px;
        }
        
        .logo {
            font-size: 28px;
            font-weight: bold;
            color: #1a5fb4;
            text-align: center;
            margin-bottom: 10px;
        }
        
        nav {
            text-align: center;
            margin-top: 15px;
        }
        
        nav a {
            text-decoration: none;
            color: #555;
            margin: 0 15px;
            font-size: 16px;
        }
        
        nav a:hover {
            color: #1a5fb4;
        }
        
        /* 主要内容区域 */
        .container {
            background-color: #fff;
            padding: 30px;
            border-radius: 5px;
            box-shadow: 0 0 10px rgba(0,0,0,0.05);
            margin-bottom: 30px;
        }
        
        h1 {
            color: #1a5fb4;
            margin-bottom: 20px;
            text-align: center;
            font-size: 32px;
        }
        
        h2 {
            color: #1a5fb4;
            margin: 30px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #eaeaea;
        }
        
        h3 {
            color: #333;
            margin: 25px 0 15px;
        }
        
        p {
            margin-bottom: 15px;
        }
        
        /* 关键词样式 */
        .keyword {
            font-weight: bold;
            color: #1a5fb4;
        }
        
        /* 优势列表 */
        .advantages {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin: 25px 0;
        }
        
        .advantage-item {
            flex: 1 1 300px;
            background-color: #f0f7ff;
            padding: 20px;
            border-radius: 5px;
            border-left: 4px solid #1a5fb4;
        }
        
        /* FAQ样式 */
        .faq-list {
            margin: 25px 0;
        }
        
        .faq-item {
            margin-bottom: 20px;
            padding-bottom: 20px;
            border-bottom: 1px dashed #eaeaea;
        }
        
        .faq-question {
            font-weight: bold;
            color: #1a5fb4;
            margin-bottom: 8px;
        }
        
        /* 热门话题按钮 */
        .topics-section {
            margin: 40px 0;
            text-align: center;
        }
        
        .topics-title {
            margin-bottom: 25px;
            font-size: 22px;
            color: #333;
        }
        
        .topics-buttons {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px;
            margin-top: 20px;
        }
        
        .topic-btn {
            display: inline-block;
            background-color: #1a5fb4;
            color: white;
            text-decoration: none;
            padding: 12px 24px;
            border-radius: 4px;
            font-weight: bold;
            transition: background-color 0.3s;
            flex: 1;
            min-width: 200px;
            max-width: 250px;
            text-align: center;
        }
        
        .topic-btn:hover {
            background-color: #0d4a9c;
        }
        
        /* 底部 */
        footer {
            text-align: center;
            padding: 30px 0;
            margin-top: 40px;
            border-top: 1px solid #eaeaea;
            color: #666;
            font-size: 14px;
        }
        
        .contact-info {
            margin-top: 15px;
            font-size: 16px;
        }
        
        /* 响应式调整 */
        @media (max-width: 768px) {
            .container {
                padding: 20px;
            }
            
            h1 {
                font-size: 26px;
            }
            
            .advantage-item {
                flex: 1 1 100%;
            }
            
            .topics-buttons {
                flex-direction: column;
                align-items: center;
            }
            
            .topic-btn {
                width: 100%;
                max-width: 300px;
            }
        }