红杉倒塌：摩托穿过山崩

ULTRA-PHOTOREALISTIC, 15 seconds, one continuous shot. A scarlet superbike tears along a broad forest road at ferocious speed, its rider crouched low as colossal redwoods tower above the open corridor. Low sunlight burns through drifting mist, revealing wet bark, trembling needles, and copper reflections across the fuel tank. Begin beside the spinning front wheel, then surge ahead and look back at the approaching rider.  A fractured cliff releases a house-sized boulder onto a giant tree beside the road. The trunk snaps and falls diagonally across the space the motorcycle has just vacated, crushing asphalt five meters behind its rear tire. Its crown strikes an already leaning redwood farther along the shoulder, initiating a catastrophic domino collapse. Each overlapping crown drives the next tree downward.  Climb through the clear road corridor into a true overhead shot: an entire hillside of ancient trees folds toward the narrow ribbon of pavement. Hold a distant view long enough to make the motorcycle look impossibly small, then plunge back beside the rider as a descending trunk grazes the roadside barrier within a meter of the handlebar.  The rider accelerates onto a stone causeway crossing a deep ravine. Behind, the final redwood tears loose a rooted rock shelf, unleashing a thunderous avalanche across the abandoned approach. Sweep into an elevated rear-quarter view to show the last boulder striking seven meters behind the bike.  End above the opposite ridge as the rider reaches bare, stable ground and the forest disappears beneath an enormous rolling cloud. Realistic weight, fierce parallax, fixed sunlight, tactile debris, no cuts or slow motion.

Create a photorealistic 15-second continuous action shot. A {{bike_color}} superbike and one helmeted rider race along a broad road through giant redwoods in fixed low golden sunlight, with mist, wet bark and realistic reflections. Begin beside the front wheel, accelerate ahead and look back at the rider. A boulder falls onto a roadside tree; the trunk crashes across the road five meters behind the bike, its crown knocking the next tree down in a readable domino chain. Rise through clear road space into a true overhead view so the rider looks small beneath the collapsing hillside, then dive beside the rider as a trunk brushes the barrier within one meter. The rider reaches a stone causeway over a ravine. Behind them the final falling tree tears loose a rock shelf, releasing an avalanche. Sweep to an elevated rear-quarter view with the last boulder striking seven meters behind the bike. Finish above the opposite ridge as the motorcycle reaches stable open ground and a rolling dust cloud swallows the forest. Keep the same bike, rider, travel direction and sunlight; physical mass, strong parallax and legible near misses. No cuts, slow motion, captions or logos. Add engine acceleration, snapping wood, rock impacts and rumbling debris; no dialogue.