Hi there, we have fought 10 hour nights for a long time so I feel your pain. Things did not get better for us until this last week, 12.5 months and after starting daycare. I do still think you need an earlier bedtime, that last A time is pretty long for 11 mths and is bound to cause OT. It seems like she is UT at bedtime but in fact probably in second wind and long past when she should have been in bed.
The total naps length is a bit on the lower side but not uncommon at 11 mths when they begin the 2-1 transition. Their day sleep gets cut back to closer to 2-2.25 hrs. What we did at 11 mths to get a better longer PM nap is to cut the AM nap to 20 mins and then next nap at no more than 3 hours later.
How is she during the day? Are her nights solid? I think it's a matter of shifting and playing with the A time in the day and naps to help adjust the nights.