A little I guess, but I'm an American, so I feel somewhat safer. Also, everything I know about my adopted homeland tells me that you only really get in trouble if you're agitating vocally for serious political change (something I don't really care about).

Probably not. China is not North Korea, I would guess nobody really cares what you are searching for.

(Conceptually it’s probably not that much different from children watching M-rated movies. The government in the US doesn’t care, even if they know children are watching that stuff. Police won’t come busting through your door. They are only interested in making it impossible for children to buy that stuff. The problem in China is of course that much more stuff is blocked and not just for children.)