body{
	background: #898f91;
}

header{
	display: flex;
	align-items: center;
	height: calc( 100vh );
	background: url(../img/bg_sp.png) center center /cover no-repeat;
}

@media screen and (min-width: 757px) {
	header{
	background: url(../img/bg_pc.png) center center /cover no-repeat;
}
}

h1,h2,h3,label{
	text-align: center;
	width: 100%;
	margin: 0 auto;
	padding: 0;
}

h2{
	font: 24px;
	padding-bottom: 20px;

}

h3,label{
	text-align: left;
	font-size: 16px;
	padding-bottom: 10px;
	display: block;
}

main{
	background: #b9c1c4;
	height: calc( 100vh - 54px );
	padding: 40px 10px;
}

form{
	max-width: 728px;
	margin: 0 auto;	
}

form div{
	padding-bottom: 20px;
}

input,textarea{
	padding: 10px;
    width: 100%;
    border-radius: 5px;
    border: 1px solid #888;
}

.mail_send input{
	width: 220px;
	margin: 0 auto;
	border: 0;
	display: block;
	background: #f8dcda;
	border-bottom: 4px solid #cca6a3;
	transition: all 300ms 0s ease;
	margin-bottom: 20px;
}

.mail_send input.btn_back{
	background: #dadada;
	border-bottom: 4px solid #a3a3a3;
}

.mail_send input:hover{
	filter: brightness(105%);
	cursor: pointer;
}

footer{
background: #898f91;
padding: 20px;
}

footer p, .container{
	max-width: 728px;
	margin: 0 auto;
}

.text-right{
	text-align: right;
	font-size: 8px;
	max-width: 728px;
	margin: 0 auto;
}

a:link,a:visited,a:hover,a:active{
	color: inherit;
}