浏览器中的等距 3D 生活模拟，五位室友自主生活

Build a browser-based life simulation in an isometric 3D view with no game engine. Show a cutaway house with a kitchen, bedroom, bathroom and office, a garden, a road with passing cars, and five small blocky characters who live there. Each character has needs such as hunger, energy, social, hygiene, fun and bladder that decay over time, plus skills like cooking, coding, charisma and handiness that level up with practice. Characters choose actions on their own: cook, eat, sleep, shower, work, chat, hug, argue or joke, shown in speech bubbles. Add friendship levels between characters, a simple economy with jobs, weekly bills, deliveries and shopping, a day and night cycle, speed controls and an event log. Provide a side panel to inspect a selected character, and let the camera pan, zoom and orbit. Done means the household keeps running without input and the panels update live.