From pudong airport to caoyang subway station when flight arrival time is 10:10pm

can any one tell me the answer, i want to come from datong to pudong airport and then want to go to caoyang station in shanghai.My flight arrival time is 10:10pm at pudong. how can i reach caoyang. what is the time of last metro line 2 .Can i catch this line up to zhongshan park.if not how much taxi will get money.or any other option cheap than taxi.what should i do for shortest way.Pls any one help me.