.sidebar {
    width: 280px;
    height: 100vh;
    padding: 20px 0;
    flex-shrink: 0;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.08);
    /* 修复固定定位 */
    position: relative;
    z-index: 10;
}
.sidebar-logo {
    text-align: center;
    font-size: 18px;
    font-weight: 600;
    padding: 10px 0;
    margin: 0 20px 20px;
    letter-spacing: 1px;
}
.menu-search {
    padding: 0 20px 15px;
}
.menu-search input {
      width: 100%;
    padding: 9px 12px;
    border-radius: 6px;
    font-size: 14px;
}
.menu-search input::placeholder {
    color: #999;
}
/* 一级菜单 */
.menu-level-1 {
    padding: 12px 0px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    display: flex;
    align-items: center;
    margin: 0 10px;
}
.menu-level-1 i.bi-chevron-down {
    margin-left: auto;
    transition: transform 0.3s ease;
}
.menu-level-1.expanded i.bi-chevron-down {
    transform: rotate(180deg);
}
/* 二级菜单容器 */
.menu-level-2-container {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-in-out;
}
.menu-level-2-container.expanded {
    max-height: 5000px;
}
/* 二级菜单 */
.menu-level-2 {
    padding: 10px 40px;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
}
.menu-level-2:hover {
    color:#0d6efd ;
}
.menu-level-2.active {
    background-color: #A8C1E8;
    color: #0066CC;
}
/* 修复移动端菜单图标显示 */
.menu-level-1 i, .menu-level-2 i {
    font-size: 16px;
    display: inline-block;
    min-width: 20px;
    text-align: center;
}