Generate an ultra-realistic 15-second downhill mountain biking sequence combining huge jumps, near collisions, and a desperate escape from a collapsing forest trail. The entire video must happen in **ONE ABSOLUTELY UNBROKEN CONTINUOUS CAMERA SHOT** with no cuts, no hidden transitions, no time manipulation, and no impossible perspective jumps. The camera should behave like an elite FPV operator moving impossibly well through real terrain, while preserving believable spatial continuity and real-world physics.0–3 seconds: Start with the rider already midair off a wooden drop on a steep downhill trail, bike angled slightly nose-down, wheels spinning fast. The camera surges upward from below the bike frame and rotates around the rider as they land into a dusty berm at speed, immediately exiting toward a narrow tree-lined section.3–6 seconds: A fallen branch crashes down ahead as the rider enters a fast sequence of switchbacks. The rider ducks low, threads between two trunks, and narrowly avoids a hiker stepping back from the trail edge. The camera dives low beside the rear wheel, then banks sharply upward around the handlebars, capturing dirt spray, fork compression, and the near miss.6–9 seconds: The trail abruptly narrows onto a wooden boardwalk spanning a steep ravine. Part of the structure has broken loose and drops away behind the rider as they sprint across it. The camera races parallel to the bike, then swings outward over the ravine just as the rider hits a kicker at the end and launches onto the far rocky trail.9–12 seconds: On landing, the rider enters a root-filled forest chute while loose earth begins sliding from the uphill side, sending rocks and soil across the track. The rider holds the line, hops a rock cluster, and slices between a trail marker and a collapsing dirt edge. The camera corkscrews around the rider in one seamless burst.12–15 seconds: The rider bursts out of the trees toward a final jump over a mountain access road just as an emergency pickup truck speeds below. The bike clears the gap cleanly. The camera follows in a breathtaking side arc, then rockets backward to reveal the rider landing and continuing downhill as part of the upper trail collapses into the ravine behind.Keep everything grounded in reality: true downhill handling, accurate body movement, authentic bike vibration, realistic jumps, dirt and wood texture, natural light flicker through trees, chain slap, wind rush, and raw danger. EXACTLY 15 SECONDS. ONE CONTINUOUS UNBROKEN TAKE.