季節・天気・夜モードを切り替えられるインタラクティブなボクセル都市

Build an interactive voxel city diorama that runs in the browser, preferably with Three.js. Show a compact floating slab of land with a dense downtown of colorful blocky towers, one tall landmark tower with an observation pod, a waterfront with small boats, parks with trees and puffy voxel clouds. Let the user orbit, zoom and pan around the model. Add a small translucent control panel with buttons for seasons and for weather and time of day: clear, rain, snow, fog, sunset and night. Each choice changes sky color, lighting, particles and the look of the ground, for example falling snow, rain streaks, foggy depth, warm evening light and lit windows at night. Keep a soft muted blue-gray background and a clean minimal interface. Done means smooth camera control, readable buildings at every setting and transitions between moods that feel polished.