/* 全局基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Microsoft Yahei', 'PingFang SC', sans-serif;
}
/* 页面基础布局 */
body {
    display: flex;
    height: 100vh;
    overflow: hidden;
    background-color: #f8f9fa;
    color: #333;
}
/* 通用过渡动画 */
.transition {
    transition: all 0.3s ease;
}
/* 清除浮动 */
.clearfix::after {
    content: "";
    display: table;
    clear: both;
}
/* 虚拟列表容器 */
.menu-list {
    height: calc(100vh - 120px);
    overflow-y: auto;
    position: relative;
    /* 修复滚动条样式 */
    scrollbar-width: thin;
    scrollbar-color: #666 #212529;
}
.menu-list::-webkit-scrollbar {
    width: 6px;
}
.menu-list::-webkit-scrollbar-thumb {
    background-color: #666;
    border-radius: 3px;
}
.menu-list::-webkit-scrollbar-track {
    background-color: #212529;
}