动作过程
Slowly releasing arms, placing palms on the ground behind for support, then gradually opening both legs outward in a V-shape, smooth motion, legs moving apart symmetrically.

结束姿态
Legs fully open in a wide V, arms extended backward supporting the body, chest lifted, looking forward, seated on the floor, final pose.

通用风格补充
Realistic human movement, soft natural lighting, neutral background, 4K, slow motion, no camera shake.