body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    /* 使用 flexbox 布局实现 body 内元素的居中 */
    display: flex;
    justify-content: center;
    align-items: center;
    padding-top: 80px;
    /* 增加顶部内边距避免内容被导航栏遮挡 */
    min-height: calc(100vh - 80px);
    /* 补偿导航栏高度 */
}


/* 导航栏样式 */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: #f8f9fa;
    padding: 1rem 2rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;

    .nav-left .logo {
        font-weight: 700;
        font-size: 1.5rem;
        color: #2c3e50;
        text-decoration: none;
    }

    .nav-links {
        display: flex;
        gap: 2rem;
        list-style: none;
        margin: 0;
        padding: 0;
    }

    .nav-links a {
        text-decoration: none;
        color: #34495e;
        font-weight: 500;
        transition: color 0.3s ease;
    }

    .nav-links a:hover {
        color: #3498db;
    }

    .menu-toggle {
        display: none;
        cursor: pointer;
        padding: 10px 15px;
        font-size: 24px;
    }
}

main {
    /* 可选：添加一些内边距，让内容不紧贴容器边缘 */
    padding: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    /* 设置背景颜色为纯白色 */
    background-color: #ffffff;
    color: #333;
    width: 40%;
    max-width: 1200px;

}

.scale-list .title {
    text-decoration: none;
    font-weight: 700;
    font-size: x-large;
    transition: color 0.3s ease;
    color: #34495e;
}

@media (max-width: 768px) {
    body {
        justify-content: baseline;
        align-items: baseline;
    }

    nav {
        .menu-toggle {
            display: block;
        }

        .nav-links {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: #ffffff;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
            flex-direction: column;
            padding: 10px;
        }

        .nav-links.active {
            display: flex;
        }
    }

    main {
        box-shadow: 0 0 10px rgba(0, 0, 0, 0);
        width: 95%;
    }
}

.scale {
    .scale-button {
        display: flex;

        input[type="radio"] {
            display: none;
        }

        label {
            flex-grow: 1;
            padding: 10px 0px;
            cursor: pointer;
            text-align: center;
            border: 3px solid #ffffff00;
        }

        input[type="radio"]:checked+label {
            border: 3px solid #909090;
            border-radius: 20px;
        }
    }

    input[type="submit"] {
        float: right;
        margin-top: 20px;
        background-color: #000000;
        color: rgb(255, 255, 255);
        padding: 15px 30px;
        border: none;
        border-radius: 4px;
        cursor: pointer;
    }
}