健身房对镜自拍

{ "prompt": "Ultra-realistic gym mirror selfie of a young athletic man sitting on a workout bench inside a modern fitness center. He has slightly messy blond hair and a focused, neutral expression while looking down at his phone, which he holds with both hands. He is wearing a black oversized hoodie, short athletic shorts, and wireless earbuds. His legs are spread naturally while seated, showing a relaxed post-workout posture. The gym environment includes weight machines, barbells, and plates behind him, with a large mirror reflecting the space. The background features bright,"