.t-store__parts-switch-wrapper .t-store__parts-switch-btn.t-active {
    font-weight: 700 !important; /* или bold */
    color: #D9889D !important;
}

.t-popup.t-popup_show .t-store__prod-popup__columns.t-img {
    max-height: 80vh !important;
    width: 100% !important;
    height: 100% !important;
    object-fit: cover;   /* растягивает с обрезкой */
    margin: 0 auto;
    display: block;
}