.related-products {
  display: block;
}

.related-products__heading {
  margin: 0 0 3rem; font-weight:600;
}

.related-products .card__information{font-weight:600;}
.related-products .card__heading{font-weight:600;}

@media screen and (min-width: 750px){
.related-products__heading {border-top:1px solid #D3D3D3; padding-top:70px; margin-top:76px;}
}  

@media screen and (max-width: 600px){
.related-products ul.product-grid{flex-direction: column; gap:20px;} 
.related-products ul.product-grid li{width: 100%; max-width:100%;}  
}