Art style: vibrant 3D animation, bright colors, expressive Disney Pixar cartoon look.
0-3s: Mark yanks at his backpack zipper and it snags. 3-6s: he hitches the strap higher on his shoulder and turns his face deeper into the locker, stiff and nervous.
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FINAL STYLE ENFORCEMENT (this is the authoritative rendering directive — it overrides any style wording ...
