使用场景图解：一天中的空间使用

Create a diagram showing how one public space is used across a day, drawn as a horizontal strip of four flat plan frames. Show the same simplified site plan four times, labelled morning, midday, afternoon and evening, identical in every respect except for the activity overlaid. Render the occupied areas as soft translucent colour blobs whose size reflects how many people are there, with small flat figure icons indicating the activity — exercise in the morning, lunch crowds at midday, children after school, and a smaller evening group. Detail the shadow of the surrounding buildings as a grey overlay shifting across the frames, so the relationship between shade and occupation is visible. Add a small bar chart beneath the strip showing estimated user numbers by hour, aligned with the four frames. Keep the base plan in a quiet grey and the overlays in two or three warm tones. Flat diagram strip, white background, consistent framing, no photorealism.