:root{color-scheme:dark;background:#0c1018;font-family:system-ui,-apple-system,Noto Sans CJK SC,sans-serif}*{box-sizing:border-box}html,body,#game-root{width:100%;height:100%;margin:0;overflow:hidden}body{display:grid;place-items:center;background:#0c1018}canvas{display:block;touch-action:none;user-select:none;-webkit-user-select:none}