html,body,#game{width:100%;height:100%;margin:0}body{overflow:hidden;background:#171824;font-family:PingFang SC,Microsoft YaHei,system-ui,sans-serif}canvas{image-rendering:pixelated;image-rendering:crisp-edges;display:block;outline:none}canvas:focus-visible{outline:3px solid #ffd18f;outline-offset:-3px}canvas[data-auto-focus=true]:focus-visible{outline:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}