*{box-sizing:border-box;margin:0;padding:0}html,body{touch-action:none;-webkit-user-select:none;user-select:none;background:#000;height:100%;overflow:hidden}#app{justify-content:center;align-items:center;display:flex;position:fixed;top:0;bottom:0;left:0;right:0}#stage{width:100%;height:100%}#game{image-rendering:auto;width:100%;height:100%;display:block}#touch{display:none}body.touch #touch{display:block}#touch .steer{gap:12px;display:flex;position:fixed;bottom:14px;left:14px}#touch .pad{background:#ffb4271f;border:2px solid #ffb42780;border-radius:14px;width:84px;height:84px;position:relative}#touch .pad:after{content:"";border:14px solid #0000;width:0;height:0;margin:auto;position:absolute;top:0;bottom:0;left:0;right:0}#touch .pad.left:after{border-right-color:#ffb427cc;transform:translate(-8px)}#touch .pad.right:after{border-left-color:#ffb427cc;transform:translate(8px)}#touch .wing{position:fixed;bottom:14px;right:14px}#touch .flap-btn{color:#ffb427;letter-spacing:2px;background:#ff78142e;border:2px solid #ffb42799;border-radius:50%;width:110px;height:110px;font:700 20px Courier New,monospace}#touch button:active{background:#ffb42759}#sound{color:#ffb427;cursor:pointer;z-index:10;background:#0006;border:1px solid #ffb42766;border-radius:8px;width:40px;height:40px;font-size:20px;position:fixed;top:10px;right:12px}#sound.muted{color:#542;text-decoration:line-through}