### Camera and video style requirements

Every generated video must be a realistic single continuous shot.

Required:
- The entire video must be captured from one continuous camera trajectory.
- The camera should maintain temporal continuity throughout the 15-second duration.
- The scene should feel like a real-world observation video.

Allowed:
- smooth camera tracking;
- handheld camera movement;
- dashcam view;
- fixed surveillance camera;
- gradual panning;
- natural viewpoint changes.

Strictly avoid:
- cuts;
- scene transitions;
- camera switching;
- replay;
- montage;
- time jumps;
- sudden viewpoint changes.

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### Motion requirements

The video should contain normal-speed realistic motion.

Required:
- Subjects should move at natural real-world speed.
- Motion should reflect realistic physics and interactions.

Strictly avoid:
- slow motion;
- slow-motion effects;
- cinematic slow-motion shots;
- time-lapse;
- fast-forward effects;
- exaggerated motion;
- unrealistic acceleration.

The generated video should resemble a real continuous recording rather than a cinematic highlight or edited movie sequence.