/* Open groups share a quiet surface instead of individual connectors. */
.fi-main-sidebar.fi-sidebar-open .fi-sidebar-group.fi-collapsible:has(> .fi-sidebar-group-btn) > .fi-sidebar-group-items {
    padding: .35rem !important;
    margin-block-start: .28rem;
    border: 1px solid #ffffff17;
    border-radius: .78rem;
    background: #ffffff0d;
    box-shadow: inset 0 1px 0 #ffffff0b;
}

.fi-main-sidebar.fi-sidebar-open .fi-sidebar-group.fi-collapsible:has(> .fi-sidebar-group-btn) > .fi-sidebar-group-items > .fi-sidebar-item > .fi-sidebar-item-btn {
    border-radius: .56rem !important;
}