Split-Screen Cinematic Time Travel Prompt

**Visual Tone**: Sci-fi cinematic feel, realistic feel, film grain.
> Close-up, continuous tracking downward shot of the forearm. A man's 【@图片1】
worn leather jacket cuff suddenly splits open, and the hidden metal mechanical plate beneath violently springs outward and unfolds. Heavy titanium alloy pistons extend, and with a crisp "click" from the precise gear assembly, they interlock and lock into place. Thick industrial-style metal armor segments rapidly spread upward along the arm to cover the shoulder and chest. The entire process is full of heavy mechanical feel and industrial power. Cool cyan side ambient light, hard rim light with sharp edges. The camera tracks upward from the forearm with a steady linear dolly. Sound effects: hiss of piston exhaust, continuous crisp metallic "click-click" of gears engaging, heavy "thud" of armor plates locking.
> Close-up to medium shot, camera continues moving downward (same long take). In the armored palm, precise metal mechanical parts fold and unfold layer by layer, reassembling and transforming into a heavy industrial-style sword hilt. The top of the hilt suddenly ignites, and a blazing blue light core lights up. Then, translucent holographic laser crystals extend forward from the core at extreme speed in segments—each segment briefly hovers in the air before quickly assembling and locking—finally, with a "hum," they combine into a complete, extremely slender holographic laser katana. The blade emits a deep blue glow and faint digital particles. 45-degree top hard light, deep heavy shadows. Camera slowly pulls back to show the full blade. The character transforms into the heavy mecha final form 【图片2】
Sound effects: metal parts friction and reassembly sounds, crackling electric arcs of laser ignition, and finally a deep powerful low-frequency "hum."