@media screen and (max-width: 960px){
  .t-store__card-list.t-store__card-list {
    row-gap: 15px !important;
  }
}

.t-store__card__descr {
  display: -webkit-box;
  -webkit-line-clamp: 3; /* количество строк */
  -webkit-box-orient: vertical;
  overflow: hidden;
}