Setup Apple pay for my website having stripe payment gateway already integrated. Also change the UI for mobile users for order section like card view. Reference provided

I have an SMM panel which already have multiple payment gateways integrated.
1. I'm using stripe payment gateway in this which is working fine. There is a feature of apple pay with stripe, which i need to integrate in my website (my website - https://ppcpro.in/ ).
2. I need to change the UI of order screen, currently its a single screen where all the process take place. I need it in card view like the reference website. https://app.tagerinsta.com/services
3. When creating this as card, i need the option in admin panel to link the categories and sub-categories to card, so user only see what i had linked.

Please find the image screenshots