*{margin:0;padding:0;box-sizing:border-box}.app-layout{min-height:100vh;background-color:#fff;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif}.main-content{max-width:900px;margin:0 auto;min-height:100vh;width:100%;box-sizing:border-box;padding-bottom:40px}