**Visual tone**: A sci-fi cinematic feel, photorealistic, with a film-grain texture
> A close-up, continuously tracking downward along a forearm. A man's [@Image 1]
worn leather jacket cuff suddenly splits open, and a hidden metal mechanical plate beneath it violently springs outward and unfolds. A heavy titanium-alloy piston extends, meshing and locking with a set of precision gears with a crisp "click." Thick, industrial-style metal armor segments rapidly spread up along the arm, covering it up to the shoulder and chest. The whole process is full of heavy mechanical weight and industrial power. Cool cyan ambient light from the side, sharp-edged hard rim lighting. The camera tracks in a smooth, linear slide upward from the forearm. Sound: the hiss of the piston venting, the crisp, continuous metallic "clack-clack" of the gears meshing, the heavy "thud" of the armor plates locking into place.
> The shot transitions from close-up to medium shot, the camera continuing to move downward (the same continuous take). In the armored palm, precision metal mechanical parts fold and unfold layer by layer, reassembling and transforming into an industrial-feeling heavy sword hilt. The tip of the hilt suddenly ignites, a blazing blue core of light switching on. Then, a semi-transparent holographic laser crystal extends forward at extreme speed in segments — each segment hovering briefly in the air before rapidly locking into place — finally combining with a "hum" into a complete, extremely slender holographic laser katana. The blade radiates a deep blue glow and faint digital particles. Hard top light at a 45-degree angle, deep shadows. The camera slowly pulls back to reveal the full blade. The character transforms into the final heavy-mech form [Image 2]
Sound: the sound of metal parts grinding and reassembling, the crackling arc of the laser igniting, and finally a deep, powerful low-frequency "hum."