宝马到奥迪标志过渡视频提示

{ "description": "Low-angle cinematic shot on graphite floor. The BMW roundel logo hovers, chrome edges gleaming. Quadrants spin off as metallic rings, descending to form a silver Audi four circled logo; spokes click into place, and a blue pulse travels along the rim. No text.", "style": "premium, mechanical, sleek", "camera": "fixed low with subtle orbit", "lighting": "cool spotlight with chrome reflections", "environment": "dark showroom void", "elements": [ "BMW roundel", "rotating chrome rings", "Audi chrome logo", "blue energy pulse" ], "motion": { "type": "logo-to-rings-to-logo", "details": "logo disassembles into rings, rings lock forming wheel" }, "ending": "Audi chrome logo glows then powers down. Fade to black. No text.", "audio": { "voice_over": "none", "music": "subtle orchestral crescendo", "sfx": "metal spin, precision clicks, electric hum" }, "text_overlay": "none", "format": "16:9", "keywords": [ "BMW", "Audi", "logo build", "premium", "no text" ] }