/* 全局重置 - 移动端优先 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: system-ui, -apple-system, "Microsoft YaHei", sans-serif;
}
html, body {
    width: 100%;
    min-height: 100vh;
    background-color: #f5f7fa;
    font-size: 15px;
    color: #222;
    line-height: 1.6;
}
a {
    text-decoration: none;
    color: #2374e1;
}
button, input {
    border: none;
    outline: none;
}
ul, li {
    list-style: none;
}

/* 顶部用户信息栏 auth.php输出的头部 */
.user-header-bar {
    width: 100%;
    padding: 12px 16px;
    background: #fff;
    border-bottom: 1px solid #e6e8eb;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
}
.user-name {
    font-size: 16px;
    font-weight: 500;
}
.user-role {
    padding: 4px 10px;
    background: #e8f3ff;
    color: #2374e1;
    border-radius: 2px;
    font-size: 13px;
}
.logout-btn {
    margin-left: auto;
    padding: 6px 14px;
    background: #f53f3f;
    color: #fff;
    border-radius: 2px;
    font-size: 14px;
}
.logout-btn:active {
    background: #d93636;
}

/* 通用容器 页面内容盒子 */
.container {
    width: 100%;
    max-width: 750px;
    margin: 16px auto;
    padding: 0 16px;
}
.card {
    background: #ffffff;
    padding: 20px;
    border-radius: 2px;
    border: 1px solid #e6e8eb;
    margin-bottom: 16px;
}
.card-title {
    font-size: 17px;
    font-weight: 500;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid #f0f1f3;
}

/* 表单通用样式（登录页专用） */
.form-box {
    max-width: 420px;
    margin: 40px auto;
}
.form-item {
    margin-bottom: 16px;
}
.form-item label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    color: #555;
}
.form-input {
    width: 100%;
    height: 44px;
    padding: 0 12px;
    border: 1px solid #dcdfe6;
    font-size: 15px;
    border-radius: 2px;
    background: #fff;
}
.form-input:focus {
    border-color: #2374e1;
}
.submit-btn {
    width: 100%;
    height: 46px;
    background: #2374e1;
    color: #fff;
    font-size: 16px;
    border-radius: 2px;
}
.submit-btn:active {
    background: #1d62c3;
}

/* 错误提示文字 */
.error-tip {
    color: #f53f3f;
    text-align: center;
    margin-bottom: 14px;
    font-size: 14px;
}

/* 权限按钮/功能按钮通用 */
.func-btn {
    display: inline-block;
    padding: 10px 16px;
    background: #2374e1;
    color: white;
    margin: 6px 6px 6px 0;
    border-radius: 2px;
}
.func-btn.admin {
    background: #722ed1;
}

/* 响应式适配手机（320px~768px自动适配） */
@media screen and (max-width: 768px) {
    html, body {
        font-size: 14px;
    }
    .user-header-bar {
        padding: 10px 14px;
    }
    .card {
        padding: 16px;
    }
    .form-box {
        margin-top: 30px;
    }
}
@media screen and (max-width: 480px) {
    .user-header-bar {
        flex-direction: column;
        align-items: flex-start;
    }
    .logout-btn {
        margin-left: 0;
        margin-top: 6px;
        width: 100%;
        text-align: center;
    }
}