/* 整体布局 */
body {
    font-family: Arial, sans-serif;
    background-color: #f8f8f8;
    padding: 20px;
}

/* 表单容器 */
form {
    max-width: 500px;
    margin: 0 auto;
    background-color: #fff;
    border: 1px solid #ccc;
    padding: 20px;
    border-radius: 5px;
}

/* 表单元素 */
label {
    font-weight: bold;
    display: block;
    margin-bottom: 12px;
}

input[type="text"],
input[type="number"] {
    padding: 10px;
    border-radius: 3px;
    border: 1px solid #ddd;
    width: 100%;
    margin-bottom: 20px;
    font-size: 16px;
}

input[type="submit"] {
    background-color: #4CAF50;
    border: none;
    color: white;
    padding: 12px 30px;
    text-decoration: none;
    display: inline-block;
    font-size: 18px;
    margin-top: 20px;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s ease-in-out;
}

input[type="submit"]:hover {
    background-color: #3e8e41;
}

/* 标题样式 */
.title {
    text-align: center;
    font-size: 30px;
    margin: 10px auto 25px;
    line-height: 1.2;
}