prompt: industrial design render of a medical ankle-knee rehabilitation robot, based on the 3d model shape. the main body is a rounded, sleek base with a hidden telescopic pull handle extending from the bottom. matte medical white plastic housing (clean, powder-coated feel). minimalist light blue accents integrated into the base and side panels, featuring a subtle textured composite finish (like fine speckled powder coating or frosted glass). the leg support frames are brushed aluminum with soft grey padded straps. the top has clean sliding rails. photorealistic, studio lighting, soft shadows, soft background, 8k resolution, high-end medical device aesthetic, keyshot render style.