*{margin:0;padding:0;box-sizing:border-box}body,html{width:100%;height:100%;font-family:Microsoft YaHei,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}#app{width:100%;min-height:100vh;background:linear-gradient(135deg,#1a1a2e,#16213e 50%,#0f3460)}