Highly detailed 3D model of Hamburg Rathaus, preserving its original neo-Renaissance architecture: symmetrical facade, central clock tower with green copper roof, ornate windows and statues. Add subtle cyberpunk elements: soft neon-blue lines tracing the roof edges, faint purple glow from arched windows, digital signs embedded into old stone, and a light mist at ground level. Structure must remain historically accurate, geometry clean and proportioned for close-up player navigation. No sci-fi deformation.