Ultra‑high‑poly 3D model of a futuristic cyberpunk spider‑bot, eight articulated mechanical legs with hydraulic pistons and exposed circuitry; sleek dark alloy chassis segmented like an arachnid exoskeleton; vibrant neon accents—glowing cyan, magenta, acid‑green and violet filaments tracing every joint; intricate mesh panels revealing pulsing core energy; luminescent optic sensors for eyes; ambient volumetric neon fog; hyper‑detailed textures and reflective surfaces; cinematic dramatic lighting; rendered in 8K with photorealistic shading and ray‑traced reflections.