Tripod shot, completely static and locked camera frame, absolute zero camera motion, no zoom, no dolly, no panning, fixed focal length. A female model in a pajama shorts set standing in front of a mirror, recording a mirror selfie video with her smartphone. The camera shot remains 100% frozen and fixed. Only the model smoothly turns slightly to the side and gently pulls the fabric on the side of her pajama shorts to demonstrate its elasticity and high quality. Stable background, zero camera movement."