canvas {
	user-select: none; 
	-webkit-user-select: none; 
	-moz-user-select: none; 
	-webkit-touch-callout: none;
}
.game_wrap {
	margin: 0 auto;
	position: relative;
	width: 100%;
	max-width: 800px;
	aspect-ratio: 16 / 9;
}
.game_wrap #fullscreen {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	border: none;
	background: rgb(0 0 0 / .2);
	color: #fff;
	font-size: 30px;
}
.game_wrap #close {
	display: none;
}
#game {
	position: absolute;
	width: 100%;
	height: 100%;
}
body.play {
	overflow: hidden;
}
body.play .game_wrap {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	max-width: none;
	height: 100%;
	background: rgb(0 0 0 / .9);
	z-index: 2;
}
body.play #fullscreen {
	display: none;
}
body.play #close {
	display: inherit;
	position: absolute;
	top: 0;
	right: 0;
	z-index: 1;
	width: 40px;
	height: 40px;
	border: none;
	background: #ccc;
}
body.play #close:hover {
	background: #999;
}
body.play #close i {
	line-height: 20px;
	font-size: 20px;
}

.open_flag {
	display: none;
}

.open_flag + div {
	display: none;
}

.open_flag:checked + div {
	display: block;
}

label.flag {
	display: block;
	position: absolute;
	top: 0;
	right: 0;
	line-height: 16px;
	text-align: center;
	width: 16px;
	height: 16px;
	padding: 16px;
}

label.flag:hover {
	background: #eee;
	border-radius: calc(infinity * 1px); /* 円形に */
}

.pwa_recommend {
	position: fixed;
	width: 300px;
	bottom: 16px;
	left: 50%;
	transform: translateX(-50%);
	padding: 16px;
	background: #fff;
	filter: drop-shadow(0 1px 4px rgb(0 0 0 / 0.5));
}

.pwa_recommend::before {
	content: "";
	position: absolute;
	top: 100%;
	left: 50%;
	margin-left: -10px;
	border: 10px solid transparent;
	border-top: 10px solid #fff;
}

.pwa_recommend span {
	background: #eee;
	border-radius: 2px;
	padding: 2px 8px;
}

.pwa_recommend ol {
	display: none;
}