01/ 01
A 4-second perfectly looping video of [SATISFYING ACTION — e.g., a pen drawing a perfect circle on paper / colorful liquid being poured into a geometric mold]. The end frame seamlessly connects to the start frame. Close-up camera angle. Crisp, detailed. ASMR-style visual. 9:16 vertical. ======================================== 产品与营销视频提示词 ========================================