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Create one continuous 13-second video, aspect ratio 16:9, showing a large highway tunnel approach under active construction at night. [00-05s] Use a slow ground-level push-in with a 28mm wide-angle lens feel toward a freshly excavated portal framed by shotcrete, steel ribs, drainage channels, and exposed rock. Electric light towers cast hard white pools across the site while amber work lamps glow inside the tunnel. Workers wear reflective coveralls, hard hats, eye protection, gloves, and sturdy boots, moving deliberately behind marked exclusion zones. [05-09s] Pan with a tracked drilling rig as it advances along the stable rock face; show rotating drill heads, dust suppression mist, hydraulic hoses, and realistic vibration without showing blasting or danger. [09-13s] Crane upward to reveal a temporary access road winding past excavators and concrete trucks, with the tunnel portal glowing against the dark mountain. Keep shadows physically consistent and surfaces dusty but believable. No logos, watermarks, signs, or on-screen text. Sound design: diesel idling, drill percussion softened by distance, ventilation fans, reversing beeps, bootsteps on gravel, and a restrained industrial pulse.