Vertical 9:16. One continuous five-second photorealistic shot. Natural stable anatomy, consistent identity, clothing and object shapes throughout. Gentle believable motion only. Clean premium composition, no cuts, no text, no logos, no captions, no dialogue. The selected adult woman age 28 wears a modest fitted navy athletic top and full-length leggings. In a bright gym she walks slowly and naturally on a treadmill, full body side view with both feet clearly visible, hands kept clear of handles. Gentle comfortable pace, no limb crossing, stable treadmill and body proportions.