.js-product .t-product__option-variants_buttons .t-product__option-checkmark_image {
    border-radius: 5px;
    height: 100px;
    width: 100px;
}

.js-product .t-product__option-variants_buttons .t-product__option-input:checked+.t-product__option-checkmark_image:before {
    border-radius: 5px;
}

.t-product__option-title.t-product__option-title_image{
  font-size: 18px !important;
  font-weight: 700 !important;
  line-height: 1.15 !important;
  padding: 8px 14px !important;
  border-radius: 8px !important;

  overflow: visible !important;
  text-overflow: clip !important;
  max-width: 280px !important;     /* подбери: 200–260 */
  white-space: normal !important;
  word-break: break-word;
}