/* 统一左侧导航栏样式 */
.sidebar {
    width: 200px;
    background-color: #ffffff;
    border-right: 1px solid #e8e8e8;
    padding: 20px 0;
    flex-shrink: 0;
    min-height: calc(100vh - 60px);
    overflow-y: auto;
}

.sidebar-menu {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sidebar-menu li {
    margin-bottom: 5px;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: #333;
    text-decoration: none;
    font-size: 14px;
    transition: background-color 0.2s, color 0.2s;
}

.sidebar-menu a:hover {
    background-color: #f0f5ff;
    color: #0052cc;
}

.sidebar-menu .active > a {
    background-color: #e6f0ff;
    color: #0052cc;
}

.submenu {
    list-style: none;
    padding: 0;
    margin: 0;
    padding-left: 20px;
    font-size: 13px;
    color: #666;
}

.submenu li {
    margin: 5px 0;
}

.submenu a {
    padding: 8px 20px;
}