Seedance 2.5 液态金属机器人变形 赛博朋克科幻提示词

12s cinematic T2V. In a dark futuristic lab, a silver liquid-metal sphere floats above a black glass platform. 0–2s: Macro shot, realistic mercury-like surface and reflections. 2–4s: The sphere drops and spreads naturally with visible surface tension and ripples. 4–7s: The same liquid metal continuously reforms into a compact four-legged robot—no cuts, no sudden morphing, consistent volume. 7–9s: The robot fully solidifies with silver armor, dark mechanical joints, and a circular optical sensor. 9–10s: The sensor powers on and slowly scans the environment. 10–12s: The robot walks two stable steps toward camera as the low-angle camera tracks backward. Photorealistic fluid physics, realistic metal reflections, cinematic VFX, premium industrial design, smooth camera motion, high-end tech commercial look. No text, logo, humans, extra limbs, deformation, jitter, or abrupt transitions.