* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft YaHei", sans-serif;
        }
        
        body {
            background-color: #f5f5f5;
            color: #333;
            line-height: 1.6;
        }
        
        header {
            background-color: #2c3e50;
            color: white;
            padding: 15px 0;
            text-align: center;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }
        
        .terms-title {
            font-size: 24px;
            margin-bottom: 20px;
            text-align: center;
        }
        
        .terms-section {
            margin-bottom: 30px;
        }
        
        .section-title {
            font-size: 20px;
            margin-bottom: 15px;
            color: #ff6a00;
        }
        
        p {
            margin-bottom: 10px;
        }
        
        h3 {
            font-size: 16px;
            margin: 15px 0 10px;
        }
        
        ul {
            list-style-type: disc;
            margin-left: 20px;
            margin-bottom: 15px;
        }
        
        li {
            margin-bottom: 8px;
        }
        
        footer {
            background-color: #2c3e50;
            color: white;
            text-align: center;
            padding: 20px 0;
            margin-top: 40px;
        }
        
        .back-to-top {
            text-align: center;
            margin-top: 30px;
            margin-bottom: 20px;
        }
        
        .back-to-top a {
            display: inline-block;
            padding: 8px 15px;
            background-color: #ff6a00;
            color: white;
            text-decoration: none;
            border-radius: 4px;
            transition: background-color 0.3s;
        }
        
        .back-to-top a:hover {
            background-color: #e65c00;
        }