/* 重置一些默认样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    padding: 20px;
}

.payment-option {
               display: flex;
               align-items: center;
               margin-bottom: 15px;
           }

.payment-option input[type="radio"] {
               margin-right: 10px;
           }

.card-logo {
            height: 30px;
            margin-left: 10px;
        }

.payment-description {
               margin-bottom: 15px;
               color: #666;
           }

.form-group {

        }

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

.form-group input {
            width: 100%;
            padding: 8px;
            border: 1px solid #ccc;
            border-radius: 3px;
        }

.form-group:last-child label {
                         display: inline-block;
                         margin-right: 10px;
                     }

.form-group:last-child input {
                         width: auto;
                     }

button {
    padding: 10px 20px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 3px;
    cursor: pointer;
}

button:hover {
    background-color: #0056b3;
}