Nhịp điệu công trường sau mưa

Create a 12-second continuous cinematic heavy machinery advertisement, aspect ratio 16:9, without cuts. [00-04s] A remote camera glides along a protected ground-level route beside a bulldozer, using a compressed 70mm lens feel. Its steel tracks grip damp aggregate while the blade spreads a thin, even layer of crushed stone. Rain has stopped; overcast daylight creates soft reflections on wet metal and shallow puddles. [04-08s] The camera curves outward, keeping safely beyond the operating perimeter, revealing a second bulldozer grading a parallel lane and two excavators arranged farther back in offset work bays. Excavator booms lift steadily, buckets curl around damp spoil, and water beads tremble on hydraulic hoses. Cool, diffuse light emphasizes dense steel and dark soil without exaggerated spray. [08-12s] The camera eases into a low three-quarter tracking composition as the nearer bulldozer passes, its blade load settling naturally. Behind it, an excavator releases material onto a stable stockpile inside its isolated work zone. Cab operators wear appropriate hard hats, high-visibility workwear, and seat belts. Maintain a gritty, deliberate industrial mood. Sound design: close track crunch, subdued diesel rumble, hydraulic hiss, dripping water, and sparse metallic percussion.