:root{
	--width-maxcontent: 563px;
	--color-grey: #f0f0f0;
	--color-dark: #505050;
}
*,*::before,*::after{
	margin: 0;
	box-sizing: border-box;
}
html{
	background: #2a2a2a;
}
body{
	max-width: var(--width-maxcontent);
	font-family: "Noto Sans JP", sans-serif;
	margin-inline: auto;
	box-shadow: 0 0 1rem hsl(0deg 0% 0% / 0.25);
	background: hsl(0deg 0% 100%);
	color: var(--color-dark);
}
video,
img{
	max-width: 100%;
	vertical-align: middle;
}
footer{
	text-align: center;
	background: var(--color-dark);
	color: var(--color-grey);
	font-size: 0.875rem;
	padding: 0 1.5rem 1rem;
	margin-top: 4rem;
	position: relative;
}
footer p{
	margin-top: 4rem;
}
footer hr{
	margin-block: 1rem;
}
.title{
	text-align: center;
	margin-block: 2rem;
	padding-inline: 1rem;
}
.title img{
	max-height: 190px;
	width: auto;
}
.attension{
	display: flex;
	/*font-size: 1.0625rem;*/
	font-weight: 500;
	padding: 1em;
	background: var(--color-grey);
	margin-block: 2rem;
	gap: 1rem;
}
.attension--hasimg{
	flex-wrap: wrap;
	padding-bottom: 0;
}
.attension--check{
	--attension-color: #5cbd3e;
}
.attension--question{
	--attension-color: #5790e5;
}
.attension__icon{
	color: var(--attension-color, #000);
	font-size: 2rem;
	display: flex;
	align-items: center;
	padding-right: 1rem;
	border-right: 2px solid var(--attension-color, #000);
}
.attension__text{
	flex: 1 0 10px;
}
.attension__sample{
	padding-inline: 1rem;
}
.os-selections{
	display: flex;
	gap: 1rem;
	padding-inline: 1rem;
	justify-content: center;
	margin-block: 2rem;
}
.os-selections input{
	display: none;
}
.os-selections label{
	text-align: center;
	padding: 2rem;
	border-radius: 1.25rem;
	box-shadow: 0 0 1rem 0 hsl(0deg 0% 0% / 0.25);
	background: var(--color-grey);
	flex: 0 0 min(220px, 50% - 1.5rem);
	font-weight: 500;
	cursor: pointer;
	user-select: none;
}
.os-selections :checked + label{
	background: var(--color-dark);
	color: var(--color-grey);
}
.os-selections i{
	font-size: 3.5rem;
}
.os-selections span{
	display: block;
}
.os-content__title{
	padding-block: 1rem;
	text-align: center;
	font-size: 1.325rem;
	font-weight: 700;
}
.step-mark{
	margin-block: 2rem;
	text-align: center;
	position: relative;
	isolation: isolate;
}
.step-mark::before{
	content: "";
	width: 100%;
	height: 2px;
	background: var(--color-dark);
	top: calc(50% - 1px);
	left: 0;
	position: absolute;
	z-index: -1;
}
.step-mark img{
	width: 70px;
}
.step-content{
	text-align: center;
	padding-inline: 1rem;
	display: grid;
	gap: 1rem;
	font-size: 1.1rem;
	font-weight: 500;
}
.step-content div{
	padding-inline: 0.5rem;
}
.step-content img{
	max-width: min(460px, 100%);
}
#os-android{
	display: none;
}
.finalstep{
	position: absolute;
	width: 100%;
	left: 0;
	top: -40px;
}
.finalstep img{
	height: 110px;
	width: auto;
}