Implement payment on the Robokassa website, a site on the Word Press engine

Implement Robokassa payment on the site with services.

There are not many pages, this is not an online store in which there are thousands of product cards.

Make up the button "Pay for the service" to implement on the site. This button is already drawn in the design, but you can see through the admin room, perhaps you can just rename the "Book" button to "Pay for the service"

Payment functionality should be available on each of the service pages in the same block.

The cost of work is 5 thousand rubles, including a safe deal.