球类无缝过渡（首尾帧）提示词

Scene: Mid-action court / pitch / center-court morphing into the next sport's location during the transition. Characters: The ball is the protagonist; player silhouettes blurred. Action: Ball transitions from basketball to football to tennis ball, occupying frame center across cuts. Camera: Camera constantly following the ball, keeping it centered. Do not let the ball go left or backwards. Keep the motion smooth and steady. Audio & Style: Whoosh, sport-specific impacts; energetic ad cinematic.