Parchment fold and double paneling in door

I’m building an interior door from pine with with floating panels in a 3-over-3 pattern (the bottom three panels are much taller than the top 3). The stiles and rails are 1.5″ thick (final) and the pine for the panels is 7/8″ thick (rough). I’m considering doing a parchment fold pattern on the top central panel (9″ tall, 13 ” wide). In order to have sufficient depth between the high point of the parchment fold and the panel field I’m worried I may need to offset the panel and its groove in the stile/rail toward the front face of the door (so it is no longer in line with the mortises). If I did this, it feels like there should be a second panel behind it, offset a similar amount toward the back face of the door and less thick so that it is coplanar with the other panels when seen from behind. Does anyone have any experience/tips for the difference between the highpoint and field of a parchment fold, and/or double paneling in doors?