On July 31, the Y778 "Firefly Rendezvous · Xiangwang" special train for study tours departed Kunming Railway Station for Xishuangbanna Dai autonomous prefecture with more than 100 parents and children aboard, embarking on a tropical rainforest study tour. Guided by professional researchers and study tour instructors, participants explored the ecological mysteries of the rainforest, bringing the "Kingdom of Plants" described in textbooks to life during the journey.