The above answer should be clear, you don't have to pay with a guaranteed credit card.
Ctrip is a very good hotel reservation company, which is trustworthy.
Ctrip will inform you by SMS, phone or email according to your agreement with him.
Finally, I will tell you a trick. Credit card guarantee is risky for customers, because if you don't stay, your money will be deducted. So you can give him false information. I tried to give him the wrong security code (the last three digits of the signature column on the back of the credit card), and the reservation can still be successful, but if you don't check in, the hotel can't deduct your money. Ha ha!