冷靜的運動型男子穿著健行裝備，具電影感寫實風格

Ethan, 24-year-old man, 183 cm (6'0"), athletic build, short dark brown hair, light stubble beard, hazel eyes, wearing a dark green waterproof hiking jacket, black cargo pants, brown hiking boots, black hiking backpack, calm and determined expression, realistic facial features, ultra-realistic cinematic style, consistent appearance across all scenes.