昼から夜へ照明が変わるガラス張りオフィスのアイソメ・ジオラマ

Build an isometric 3D diorama of a modern single-storey office for a web onboarding page. Model the building in Blender (or procedurally) and export it for Three.js: glass walls, a wooden floor, rows of desks with chairs and computers, a meeting table, a lounge corner and a small parking strip with colourful cars along one side. Use a clean white page background with soft shadows under the floor slab. Add a day-to-evening transition: bright neutral daylight first, then warm interior lights glowing while the exterior goes dark. Animate small people walking between desks. Use a fixed isometric orthographic camera. Deliver one web project that loads the model and plays the lighting change in a loop. Done when the scene renders smoothly, the evening lighting looks warm and readable, and the figures move without clipping.