请用Manim给我制作一个导数概念学习的视频…

We also rebuilt a detailed prompt from the video's frames, timed to the published video. It's our reconstruction, not the creator's words: a strong starting point, not a guarantee.

BRIEF
This is a 457-second Manim explainer video teaching the core concept of derivatives using a car’s motion along a number line as an intuitive example. It’s…