And you should provide a lot of contact information, such as photos and letters of falling in love together, the longer the better.
It is difficult for you to explain to the immigration officer that you are traveling, getting married at first sight and applying for a green card. It's incredible.
If you have to do this, at least don't hold a tourist visa, this idiot will feel abnormal. And China people have low credibility in the eyes of immigration officials. If it is found to be a fake marriage, it will be bad, and your stain will always limit your freedom to leave the country. And may get into trouble or litigation. I still advise you not to do this, or you can go there first and then try to change a visa for a longer period of time.
Then do more "proof" with the person you want to deal with in the preparation stage. But I suggest you protect yourself.