body {
            font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
            line-height: 1.6;
            color: #333;
            max-width: 800px;
            margin: 0 auto;
            padding: 20px;
            background-color: #f9f9f9;
        }
        h1 {
            color: #2c3e50;
            border-bottom: 2px solid #3498db;
            padding-bottom: 10px;
        }
        p {
            margin-bottom: 20px;
        }
        i {
            margin-bottom: 20px;
        }
        ul {
            padding-left: 20px;
        }
        li {
            margin-bottom: 10px;
        }
        a .d{
            color: #3498db;
            text-decoration: none;
            transition: color 0.3s;
            display: inline-block;
            padding: 5px 10px;
            border-radius: 4px;
        }
        a{
            color: #3498db;
            text-decoration: none;
            transition: color 0.3s;
            display: inline-block;

        }
        a:hover {
            color: #2980b9;
            background-color: #ecf0f1;
        }
        .container {
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            padding: 30px;
        }
        .title-icon {
            color: #3498db;
            margin-right: 8px;
        }
        .back-button {
            display: inline-block;
            margin-bottom: 20px;
            padding: 8px 16px;
            background-color: #f0f0f0;
            border-radius: 20px;
            color: #555;
            text-decoration: none;
            transition: all 0.3s;
        }
        .back-button:hover {
            background-color: #e0e0e0;
            transform: translateY(-2px);
        }
        .footer {
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid #eee;
            font-size: 0.9em;
            color: #777;
        }
        hr{
            border: none; /* 移除默认边框 */
            height: 2px; /* 设置线条高度 */
            background: #3498db; /* 设置颜色 */
        }
        hr .a{

        }
        img{
            width: auto; 
        }
        p .red{
            color: #f00;
        }