.fi-sidebar-nav-groups > .fi-sidebar-group + .fi-sidebar-group {
    margin-top: -15px !important;
    padding-top: 5px !important;
    border-top: 1px solid #d1d5db !important;
}

.dark .fi-sidebar-nav-groups > .fi-sidebar-group + .fi-sidebar-group {
    border-top-color: #4b5563 !important;
}