Create or revise a Chinese short-video cover from a spoken script, headline, and the creator's own portrait photo. Use this skill whenever a user asks for a Douyin/TikTok China, Xiaohongshu, Reels, or vertical video cover that should feature their real face and vary with each topic. Require a clear portrait upload before generating; choose or recommend one of five built-in visual styles from the content, then derive the pose, expression, outfit, diagram, and composition instead of reusing one template.
