You can check on the c-trip website that it is confirmed under your profile. The only way you can get the ticket numbers is by going to a ctrip office to pick it up...

But this doesn't matter at all, and you have nothing to worry about. Just show up at the airport and show your passport to check in. I'd get there a little bit early to ensure a window/aisle seat because you can't do that online, and try to check the airport website to see if there's been a cancellation or change (common in china) before leaving