What to do in 12 hour layover

I am traveling and coming back I’m going to have a 12 hour layover at Zurich airport from 9:25pm to 9:25am on May 12 this year. I really want to do explore Switzerland if possible in this short time. I looked up some things to do and a lot of them involve hiking and scenic train rides and I am going with my family and my parents are old so hiking is not really an option. Since most of my exploring time is going to be during the dark are there any scenic train rides that I can take at night from Zurich to somewhere beautiful and still be able to come back in time for my flight? Will it still be as beautiful at night as it is during the day or will it be all dark and no lit up cities? I am also open to any other suggestions you have that I can do to explore the beautiful scenery in Switzerland and is not expensive:) Thank you