body {
  font-family: 'Hiragino Sans', 'ヒラギノ角ゴシック', 'Sans-serif';
}
img{
	vertical-align: bottom;
}
section{
	width: 940px;
	margin: 0 auto 120px;
}
#contents{
	width: calc(100% - 20px);
	max-width: 1024px;
	padding: 0 10px;
}
.text-indent {
  text-indent: -1em;
  padding-left: 1em;
}
.text-small{
	font-size: 0.9em;
}
.pc {
  display: block;
}
.about{
	margin-bottom: 50px;

	.about_title{
		margin: 0 0 20px 0;
		font-size: 24px;
		font-weight: 600;
		text-align: left;
	}
	.about_text{
		display: flex;
		justify-content: space-between;
		align-items: center;
		flex-direction: row-reverse;
	}
	.about_text img{
		max-width: 200px;
	}
	.about_text p{
		margin: 0 30px 0 0;
		font-size: 16px;
	}
}
.howto{
	margin-bottom: 50px;

	h3{
		margin: 0 0 0.5em 0;
		font-weight: 600;
	}
	.howto_btn{
		width: 220px;
    	margin: 0 0 20px 10px;
	}
	.howto_btn a{
		font-weight: 600;
		line-height: 2.5;
		text-align: center;
		color: #fff;
		text-decoration: none;
		background: #ef3838;
		display: block;
		opacity: 1;
		transition: opacity 0.2s ease-in-out;
	}
	.howto_btn a:hover{
		opacity: 0.6;
	}
	.howto_mail,
	.howto_hand{
		padding: 0 10px;
		margin: 0 0 20px 0;
	}
	.mail_list,
	.contact_list {
    	padding: 0 0 0 1em;
	}
	.mail_list{
		margin: 0 0 5px 0;
	}
	.howto_note{
		padding: 0 10px;
	}
}
.present{
	max-width: 800px;
    margin: 50px auto 50px;

	img{
		margin: 0 auto 1em;
    	max-width: 400px;
		display: block;
	}
}
.caution-box{
	margin: 0 0 1em 0;
    padding: 0.8em;
    border: solid 1px #000;
    display: inline-block;
}
@media screen and (max-width: 1024px){
	section{
		width: 95%;
	}
}

@media screen and (max-width: 800px) {
	section{
		width: 100%;
	}
	.pc {
		display: none;
	}
	.about{
		.about_title{
			font-size: 20px;
			text-align: center;
		}
		.about_text{
			flex-direction: column;
			font-size: 16px;
		}
		.about_text p{
			margin-top: 2em;
			margin-right: 0;
		}
	}
	.present{
		img{
			max-width: 300px;
		}
	}
	.caution-box{
		padding-left: 0.5em;
		padding-right: 0.5em;
	}
}

@media screen and (max-width: 480px){
	
}