提示词

A muscular man with light to medium tan skin ascends stairs away from camera, back to viewer. He grips black socks or footwear at his thighs while shirtless in black athletic shorts and white crew-length socks. The shot highlights defined latissimus dorsi and prominent glutes under soft shadows cast on the indoor staircase landing. Vertical phone-camera perspective with black bars frames the documentary-style capture of physical form., a single uninterrupted photograph only, no written words or typography anywhere in frame, no captions, no app UI, no social-media post layout, no screenshot borders