#nav-menu {
    width: 64px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    padding: 12px 0;
    border-right: 1px solid #e8e8e8;
    background: #fff;
}

.nav-item {
    width: 100%;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #606266;
    font-size: 22px;
    transition: all 0.25s ease;
    position: relative;
    margin: 4px 0;
}

.nav-item i {
    font-size: 22px;
    transition: transform 0.25s ease;
}

.nav-item:hover {
    color: #409eff;
}

.nav-item:hover::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 44px;
    height: 44px;
    background: rgba(64, 158, 255, 0.1);
    border-radius: 12px;
    z-index: -1;
}

.nav-item:hover i {
    transform: scale(1.1);
}

.nav-item.active {
    color: #409eff;
}

.nav-item.active::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 44px;
    height: 44px;
    background: rgba(64, 158, 255, 0.12);
    border-radius: 12px;
    z-index: -1;
}

.nav-item-text {
    font-size: 11px;
    font-weight: 500;
    white-space: nowrap;
    color: #909399;
    margin-top: 4px;
    font-size: 10px;
}

.nav-item:hover .nav-item-text {
    color: #409eff;
}

.nav-item.active .nav-item-text {
    color: #409eff;
}