Nút giao giữa đồng bằng

Create one continuous 14-second video, aspect ratio 16:9, showing an immense multi-level highway interchange under construction across open plains. [00-04s] Begin with a top-down drone-style descent toward looping earthworks, using a 24mm lens feel and smooth stabilized movement. Graders shape embankments while pavers, rollers, dump trucks, and concrete crews work in coordinated lanes; all workers wear hard hats, high-visibility garments, gloves, and protective boots. Clear midday sunlight produces sharp shadows and emphasizes tire tracks, compacted soil, aggregate piles, and concrete pier geometry. [04-09s] Transition into a low forward fly-through beneath a partially completed ramp, with a 20mm lens feel. A line of trucks delivers base material as a roller makes visible, realistic passes over the granular surface. [09-14s] Rise rapidly to a wide reveal of the interchange pattern, showing drainage channels, bridge decks, temporary barriers, and distant fields without any readable markings. Maintain believable vehicle spacing and dust movement in light wind. No logos, watermarks, signage, or on-screen text. Sound design: layered truck engines, roller vibration, hydraulic lifts, tire crunch over aggregate, open-country wind, and an expansive cinematic rhythm.