Hi there, I am arriving at Guilin Airport at 00:45 and like to go to Yangshuo.

Oh, the direct bus to Yangshuo will be out of service upon your arrival. You can take a taxi to commute with the fare of CNY300-350 that late. Or take the shuttle bus to downtown and the last bus leaves around the arrival of the last flight. U will be dropped off at Civil Aviation Hotel, where you can stay overnight and leave for Yangshuo from the local General Long-distance Bus Station in the next morning.