#name, #captcha, #phone
		{
            width: 100%;
            padding: 10px;
            box-sizing: border-box;
            border: 1px solid #ccc;
            border-radius: 4px;
            height: 40px;
        }
        h2 {
            text-align: center;
            margin-bottom: 20px;
            color: #333;
        }

        .form-group {
            margin-bottom: 15px;
        }

        label {
            display: block;
            margin-bottom: 5px;
        }

       

        small {
            display: block;
            color: #777;
            font-size: 0.9em;
            margin-top: 5px;
        }

        button {
            width: 100%;
            padding: 10px;
            background-color: #dc3545;
            color: white;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            transition: background-color 0.3s ease;
        }

        button:hover {
            background-color: #c82333;
        }

        .captcha-container {
            position: relative;
        }
        
        .captcha-container input {
            padding-right: 100px;  /* 给图片预留空间 */
        }
        
        .captcha-image {
            position: absolute;
            right: 0;
            top: 70%;
            transform: translateY(-50%);
            height: 50%;  /* 按比例缩放 */
            aspect-ratio: 1/0.3;  /* 保持图片宽高比 */
            border-left: 1px solid #ccc;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            background: #fff;
        }