@charset "UTF-8";
/* CSS Document */

html,body{
	margin: 0;
	padding: 0;
}
*{
    box-sizing:border-box; /*余白や線を幅や高さに含める*/
}
body{
	font-family: source-han-sans-japanese, sans-serif;
	letter-spacing: 0.1em;
}
h1,h2,h3,h4,h5,p{
	margin: 0;
	padding: 0;
}
a{
	color: #000;
	text-decoration:none;
	display: block;
}
a:hover{
	opacity: 0.6;
}


/* HEADER */
header{
	position: fixed;
	top: 0;
	left: 0;
	
	width: 100%;
	background-color: rgba(255,255,255,0.8);
	z-index: 1000;
}
header .inner{
	max-width: 1500px;
	width: 100%;
	padding: 0.5em 1em;
	margin: 0 auto;
	display: flex;
	align-items: center;
	justify-content:space-between;
}
header .inner img{
	width: 200px;
	height: auto;
}
header .inner nav ul{
	display:flex;
	list-style:none;
}
header .inner nav ul li{
	margin-left: 1em;
}


/* SECTION */
.sec-inne{
	max-width: 1500px;
	width: 100%;
	padding: 5em 1em;
	margin: 0 auto;
}


/* TOP */
.top-img{
	height: 88vh;
	width: 100%;
}
.topics{
	max-width: 500px;
	width: 95%;
	margin: 0 auto;
}
.topics dl{
	display: flex;
	padding: 0.3em;
	border-bottom: 1px solid #eee;
}


.background1 {
	background-image: url("../image/topimage/topimage01.jpg");
	background-size:cover;
	background-repeat: no-repeat;
	background-position: center;
}
.background2 {
	background-image: url("../image/topimage/topimage02.jpg");
	background-size:cover;
	background-repeat: no-repeat;
	background-position: center;}
.background3 {
	background-image: url("../image/topimage/topimage03.jpg");
	background-size:cover;
	background-repeat: no-repeat;
	background-position: center;}
.background4 {
	background-image: url("../image/topimage/topimage04.jpg");
	background-size:cover;
	background-repeat: no-repeat;
	background-position: center;}
.background5 {
	background-image: url("../image/topimage/topimage05.jpg");
	background-size:cover;
	background-repeat: no-repeat;
	background-position: center;}


/* OFF */
.off{
	background-color: #efefef;
}
.event img{
	width: 100%;
	height: auto;
	/*border: 0.5em solid #fff;*/
}
.event-topics{
	margin-bottom: 3em;
}
.event-topics dl{
	max-width: 500px;
	width: 100% ;
	display: flex;
	padding: 0.3em;
	border-bottom: 1px solid #000;
}

.event-item{
	width: 100%;
	/*display: flex;*/
	font-size: 0;
}
.event-item2{
	width: calc(100%/4 - 1.1em) ;
	margin: 0.5em;
	text-align: center;
	display: inline-block;
	font-size: 12pt;
	vertical-align: top;
}
.event-item-image{
	width: 80%;
	margin: 0 auto;
}
.event-item-title{
	padding: 0.5em 0;
}


/* SNS */
.sns-list{
	text-align: center;
	font-size: 0;
	list-style: none;
	padding: 0;
}
.sns-list li{
	display: inline-block;
	width: calc(100%/5 - 2.5em) ;
	font-size: 12pt;
	margin: 1em;
}
.sns-list i{
	font-size: 2em;
	margin: 0.5em;
}


/* FOOTER */
footer{
	text-align: center;
	padding: 0.5em 0;
	color: #fff;
	background-color: #000;
}

@media only screen and (max-width: 900px) {
	header .inner{
		padding: 0.5em;
	}
	header .inner img{
		width: 150px;
		height: auto;
	}
	header .inner nav ul{
		display:flex;
		list-style:none;
	}
	header .inner nav ul li{
		margin-left: 0.5em;
		font-size: 0.8em;
	}
	.top-img{
		height: 70vh;
		width: 100%;
	}
	.event-item2{
		width: calc(100%/2 - 1.1em) ;
	}
	.event-item-image{
		width: 90%;
		margin: 0 auto;
	}
	.event-topics dl{
		display: block;
	}
	.event-topics dd{
		margin: 0;
	}
	.sns-list li{
		width: calc(100%/2 - 2.5em) ;
	}
}