پرامپت تبلیغاتی دوچرخه سوار با افکت سرعت

A professional road cyclist in an aggressive aerodynamic racingposition, riding a modern carbon road bike on a clean light-grayseamless studio background. The cyclist is positioned on the left side ofthe frame with a soft realistic shadow beneath the bike. From behindthe rider's upper back, shoulders, and rear wheel emerges a singlecontinuous aerodynamic motion sheath, seamlessly fused to the rideras if speed is stretching the body into a sculptural stream of motion.The motion sheath is formed from thousands of ultra-fine longitudinallinear streaks compressed into one flowing three-dimensionalstructure with perfectly smooth parallel spacing and no separatedstrands. It wraps naturally around the cyclists back and rear wheelbefore expanding into broad flowing curves that taper toward the edgeof the frame. The structure features laminar airflow geometry,elongated velocity streaks, continuous spline curves, layered lineargradients, glossy satin transitions, fluid aerodynamic surfaces, subtlemotion compression, and seamless directional flow. The streaks remainperfectly parallel throughout the entire form, creating a sleek, high-speed racing aesthetic. The colors are sampled directly from the cyclistand bicycle—deep black, graphite, dark navy, metallic gray, bright racingred, white, and subtle steel-blue highlights—producing perfect colorharmony between the athlete and the motion trail. The rider remainsrazor-sharp while only the wheels show realistic rotational motion blur.Premium sports advertising photography, hyper-realistic CGI motiondesign, minimalist studio composition, cinematic soft lighting, ultra-clean background, photorealistic detail, dynamic sense of speed, 8K. ar