Neon Balloon Over a Cyberpunk Subway Tunnel

A retro-futuristic hot air balloon outfitted with neon cyberpunk tech floats through a rain-soaked subway tunnel at night. The balloon's envelope glows with cyan, magenta, and electric blue panels while the wicker basket is replaced with a ventilated metallic cradle lined with holographic displays. Inside, passengers in chrome jackets and AR visors steer with a touch of bio-luminescent HUDs. The tunnel walls are covered in glowing graffiti, kanji and English street ads, with steam billowing from vents and neon signs flickering along riveted concrete arches. Electric cables snaking overhead drip rain onto the rails; puddles reflect the intense neon glow. Drones circle the balloon as mist swirls in the air, and the tunnel recedes into a deep blue-purple vanishing point. Cinematic, photorealistic cyberpunk aesthetic, high detail, 8k, dynamic lighting, concept art.