French vlogger's Xiong'an diary -- the living "three cities" of innovation

　　Join French vlogger Mylene as she explores Xiong'an New Area, a futuristic city built in three coordinated layers: an underground network of utility corridors and logistics, efficient urban spaces above ground, and a cloud-based digital twin that monitors the "above ground city" in real time. A glimpse into the future of urban development!