Using the uploaded product image ONLY, generate a 15-second vertical video for Douyin.
This video is strictly about walnut black sesame powder (核桃芝麻粉).
DO NOT add any elements that are not explicitly described.
Style: realistic, authentic, traditional Chinese food product, calm, trustworthy.
STRICT RULES (VERY IMPORTANT):
• NO coffee, NO cocoa, NO latte, NO café-related elements
• NO women, NO men, NO people, NO hands, NO faces
• NO cups of coffee, NO mugs, NO modern drinks
• NO text, NO subtitles, NO captions
• NO voice-over, NO narration
• NO lifestyle scenes
Scene 1 0–4s
Close-up of walnut pieces with visible particles placed into a ceramic bowl, followed by black sesame powder. Emphasize texture difference.
Scene 2 5–8s
Macro slow-motion of black sesame powder falling naturally.
Scene 3 9–12s
Hot water poured into the mixture, slow stirring with a spoon. Thick consistency, visible walnut particles, steam.
Scene 4 13–15s
Clean product packaging shot, centered, simple background.
Camera: cinematic macro, shallow depth of field, smooth transitions.