.pet-page-grid .product-card:nth-child(4n+1) .add-inquiry{background:#176c68}.pet-page-grid .product-card:nth-child(4n+2) .add-inquiry{background:#c96548}.pet-page-grid .product-card:nth-child(4n+3) .add-inquiry{background:#68528f}.pet-page-grid .product-card:nth-child(4n+4) .add-inquiry{background:#9a6a22}