* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
    overflow-x: hidden; /* 防止横向滚动 */
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

input {
    font-family: inherit;
}

.main-container {
    display: flex;
    margin-top: 70px;
    margin-bottom: 60px;
    min-height: calc(100vh - 130px);
}

.content-area {
    flex: 1;
    padding: 20px;
    margin-left: 200px !important; /* 强制使用桌面端样式，确保侧边栏始终显示 */
    overflow-y: auto;
    background-color: #fff;
    min-height: calc(100vh - 130px);
}

.section-title {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 20px;
    color: #333;
}

.loading {
    text-align: center;
    padding: 40px;
    color: #999;
    font-size: 14px;
}

.no-data {
    text-align: center;
    padding: 40px;
    color: #999;
    font-size: 14px;
}