Joomla has its own product card and Buy button, how to make it work?

Question

Joomla

Good afternoon! There is an old site, we decided to fix the look a little. Reimplemented the product card How do I make my "Buy" button work? Just set it to all the classes of the add-button button, which does not help in the virtuemart component. Please tell me is this even possible? https://postimg.cc/k6X48rhf