@media screen and (max-width: 991px) {
  .filter__item-group:not(.filter__item-group .filter__item-group)>*:not(:first-child) {
    padding-left: 20px !important; /* 20px = no indent */
  }

  .filter__item-group .filter__item-inner {
    font-size: 13px !important;
  }
}