ETA Shenzhen airport 2330 hrs. Is there any shuttle bus to Lo Wu station during this hours?

The airport shuttle bus line 2 operates from the airport to the Luohu Station directly and this line stops at around 24:00.
In my opinion, you can try your best to catch the last bus of the line 2. If you cannot catch this line, you can take the shuttle bus line 1 to reach the terminal at Hualian Mansion. Then you can take a taxi to the Luohu Station. From Hualian Mansion to Luohu Station, there is around 5km.