Taxi fare from Beijing Capital Airport to Citytel Inn at midnight

We're a family of four with lots of luggage, about 3 large suitcases and 3 cabin bags. Our flight is scheduled to land by 10.50pm. Please advise of the best way to get to Citytel Inn hotel (Block C and D, Nanheyan Street, Dongcheng). Is there any large cab which can accommodate the 4 of us plus luggage? And how much the cab trip will cost? Thanks.