futuristic floating fortress 3d model

A massive futuristic castle floating above a cyberpunk Tokyo-inspired city at night. The structure is built forming a fortress-like silhouette with sci-fi detailing. Its exterior glows with neon lights in blue, magenta, and cyan, with illuminated lines running along the cube edges and tech panels embedded in the walls. Below it stretches a dense cityscape filled with skyscrapers, holographic signs, and flying vehicles, reflecting vibrant neon colors. The atmosphere is rainy and moody, with mist, reflections, and electric energy in the air. The castle should look imposing, industrial, and heavily modular — a blend of brutalist architecture and cyberpunk aesthetics.