AI Video Prompt: Powder Brush ASMR

Create an 8-second vertical 9:16 ultra-realistic macro beauty ASMR video. Show a single large cosmetic powder brush interacting with a small mound of fine white cosmetic powder on a clean white studio surface. Start with the brush positioned close to the powder. Slowly press the soft bristles into the powder, allowing the bristles to bend naturally and compress the fine particles. Move the brush gently across the surface, creating realistic texture changes and soft powder movement. Capture every detail of the bristles, powder grains, and contact point using an extreme macro lens style. Use a locked macro camera, shallow depth of field, soft diffused studio lighting, realistic material physics, smooth controlled motion, and a premium beauty advertisement appearance. Maintain the exact same brush, powder, environment, lighting, and camera throughout the entire continuous shot. No cuts, no transitions, no extra objects, no people, no text, no unrealistic effects.