body {
            font-family: Arial, sans-serif;
            background-color: #f8f9fa;
            margin: 0;
            padding: 0;
        }
        .container {
            max-width: 600px;
            margin: 50px auto;
            padding: 20px;
            background-color: #fff;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
            border-radius: 5px;
        }
        h1 {
            text-align: center;
            color: #333;
        }
        .form-group {
            margin-bottom: 15px;
        }
        label {
            display: block;
            margin-bottom: 5px;
            color: #555;
        }
        input[type="text"], input[type="password"] {
            width: 100%;
            padding: 10px;
            border: 1px solid #ccc;
            border-radius: 4px;
            box-sizing: border-box;
        }
        button {
            width: 100%;
            padding: 10px;
            background-color: #007bff;
            color: #fff;
            border: none;
            border-radius: 4px;
            cursor: pointer;
        }
        button:hover {
            background-color: #0056b3;
        }
        .alert {
            margin-top: 20px;
            padding: 10px;
            border: 1px solid transparent;
            border-radius: 4px;
        }
        .alert-success {
            color: #155724;
            background-color: #d4edda;
            border-color: #c3e6cb;
        }
        .alert-danger {
            color: #721c24;
            background-color: #f8d7da;
            border-color: #f5c6cb;
        }
        .hidden {
            display: none;
        }
        /* 弹窗样式 */
        .modal {
            display: none;
            position: fixed;
            z-index: 1;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            overflow: auto;
            background-color: rgb(0,0,0);
            background-color: rgba(0,0,0,0.4);
            padding-top: 60px;
        }
        .modal-content {
            background-color: #fefefe;
            margin: 5% auto;
            padding: 20px;
            border: 1px solid #888;
            width: 80%;
            max-width: 600px;
            border-radius: 5px;
        }
        .close {
            color: #aaa;
            float: right;
            font-size: 28px;
            font-weight: bold;
        }
        .close:hover,
        .close:focus {
            color: black;
            text-decoration: none;
            cursor: pointer;
        }
        /* 密码可视按钮样式 */
        .password-toggle {
            margin-left: -40px;
            position: relative;
            top: 4px;
            cursor: pointer;
        }
        /* 标黑内容样式 */
        .black-number {
            color: black;
        }
        /* 红色内容样式 */
        .red-text {
            color: red;
        }
        /* 按钮样式 */
        .btn-disagree {
            background-color: gray;
            color: white;
        }
        .btn-agree {
            background-color: red;
            color: white;
        }
        /* 验证码输入容器样式 */
        .verification-code-container {
            display: flex;
            gap: 10px;
        }
        
        .verification-code-container input {
            flex: 1;
        }
        
        /* 发送验证码按钮样式 */
        .btn-secondary {
            padding: 10px 15px;
            background-color: #6c757d;
            color: white;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            width: auto;
        }
        
        .btn-secondary:hover {
            background-color: #5a6268;
        }
        
        /* 验证码消息样式 */
        #codeMessage {
            display: block;
            margin-top: 5px;
            font-size: 14px;
        }
        
        /* 邮箱输入框样式 */
        input[type="email"] {
            width: 100%;
            padding: 10px;
            border: 1px solid #ccc;
            border-radius: 4px;
            box-sizing: border-box;
        }
        
        /* 前往官网按钮样式 */
        .go-to-official-site {
            display: inline-block;
            margin-top: 15px;
            padding: 10px 20px;
            background-color: #28a745;
            color: white;
            text-decoration: none;
            border-radius: 4px;
            transition: background-color 0.3s ease;
        }
        .go-to-official-site:hover {
            background-color: #218838;
        }