How do trisolarans survive?

Excuse me, could you elaborate on how exactly the Trisolarans manage to survive in their unique environment? Are there any specific adaptations or technologies that they have developed to thrive in their challenging circumstances? Additionally, how do these survival strategies compare to those of other extraterrestrial life forms, if any, that we may be aware of? I'm particularly interested in understanding the innovative approaches the Trisolarans have taken to ensure their continued existence.