Three-View Running Stretch Guide — Pre, Mid, Post-Run

1536×864 high-fidelity triptych demonstrating running stretches: left = pre-run start, center = active stretch, right = post-run close-up with clear muscle texture. Industrial studio lighting, neutral low-saturation gradient, soft shadows. Composited from reference photos with un

• Aspect ratio：16:9
• Resolution：1536
• Task ID：820326640046597