Originally Posted by
BigE
This website says a 24-hour transit is fine, even with a domestic flight within china, so long as the total time in China is less than 24 hours. https://www.travelchinaguide.com/embassy/visa/transit.htm
Having said that, I'm not sure I'm brave enough to try it, unless I heard from others who have done it. Even if the rules are clear, it doesn't mean that airlines will let you on the plane to China.
Transit means your intended destination is a 3rd country via China.
Not your home country. I tried this and was detained for 3 hours in a cell with a guard.