Showing additional details on enabling checkboxes

In the screenshot below, there is a section for vendor types. On checking (enabling) each vendor type, the application requires the user to add more details to configure it (notice the cards at the bottom).

Each card is representing the additional details required for the respective vendor types. The current layout isn't intuitive and seems bad in terms of the UX.

What would be a good/acceptable way of showing additional details when a checkbox is enabled?