Hyper-realistic cinematic action sequence, 15 seconds, 16:9. A futuristic pursuit begins above the clouds at the summit of the tallest city ever built. The interceptor dives continuously downward along the exterior of the megastructure, passing rooftop gardens, luxury sky districts, dense residential towers, elevated transit systems, giant industrial levels, glowing neon commercial zones, and immense ventilation shafts before reaching the bustling streets at ground level. The camera constantly alternates between cockpit POV, FPV pursuit, side-mounted flybys, rooftop drone shots, and dramatic IMAX-wide reveals that emphasize the city's staggering vertical scale. Final shot: the aircraft disappears into a glowing underground transit tunnel beneath the city. Style: IMAX realism, believable architecture, crystal-clear action, cinematic lighting, seamless continuous descent.