What are the requirements for a Hegang high-speed rail flight attendant?

Railway attendants must be between 18 and 30 years old (recruitment requirements vary from place to place); height must be 160cm; junior high school, technical secondary school, college degree or above; good facial features, well-proportioned figure, clear articulation, and no color blindness ; Good health, no chronic or infectious diseases, no heart disease, no motion sickness, etc.