Scheme 1: Go out and cross the road and take Hanjiang Line or 603 or Yangjiang Line or Puxin Line to Puchang Community, take 157 to Nanjing Station, and take the subway 1 to Nanjing South Station. About an hour and a half.
Option 2, but take Puxin Line to Xinglong Street, then take Metro Line 2 to Xinjiekou, and then transfer to 1 Line to Nanjing South Railway Station, which takes about an hour.