It is the begining of feudalization, so no levels of society, but just contrast between official and common people, farmer and landlords. In QIn, women has higher status, compared with later dynasties. They can own private property, can participate social activities, etc. I just say a bit better than thw women we know in ming and Qing dynasties.

The social class structure in China had four levels and the jobs that they had in ancient China varied according to the social classes:
Shang class - The lowest class. Consisted of merchants and traders. Even though they were at the bottom, they were regarded as important members of the community.
Gong class - Above the Shang class and made up of craftsmen and artisans, or people with certain skills. Many of these worked for the government or worked privately, sometimes employing artisans under them.
Nong class - Above the Gong class and made up of farmers and peasants.
Shi class - The top class, whose members were educated. They ran the government, planned battles, and enjoyed the good life.

i dont even knw this and im 21

I thought the farmers were at the bottom
but again you might be right because farmers and peasants are quite important.
Maybe research it up, I don't know.
I think that Qin Shihuang was paranoid because of the mercury pills. Mercury makes you insane. Anyway, just look at different websites. They all have different answers. Reading between the lines, you can sort of find it out.
Oh well, get a life other than this. I'm going out to a roller disco now. See ya!