@charset "utf-8"; 
html {
	-webkit-box-sizing: border-box;
	box-sizing: border-box;
	font-size: 62.5%;         
}

body {
	font-size:16px; /* 1.6em */
	font-family:'Avenir','Helvetica Neue','Helvetica','Arial','Hiragino Sans','ヒラギノ角ゴシック',YuGothic,'Yu Gothic','メイリオ', Meiryo,'ＭＳ Ｐゴシック','MS PGothic',sans-serif;
	-webkit-text-size-adjust: 100%;
	-moz-text-size-adjust: 100%;
	-ms-text-size-adjust: 100%;
	text-size-adjust: 100%;
}

* {
	padding: 0px;
	margin: 0px;
}

	*, 
	*:before, *:after {
	-webkit-box-sizing: inherit;
	box-sizing: inherit;
	}
	
a {
	text-decoration: none;
}




ul, li {
	list-style: none;
}


/*start ヘッダー*/
.header {
	width: 100%;
	position: fixed;
	left: 0;
	top: 0;
	height: 50px;
	background-color: white;
	z-index: 10;
}


.headerNavOuter {
	margin-bottom: 0;
	position: relative;
}


/* スタートナビゲーション */
.headerNav {
	position: fixed;
	left:  -250px;
	top: 0;
	width: 250px;
	height: 100vh;
	padding-top: 60px;
	background-color: rgba(255, 255, 255, 1); 
	-webkit-transition: all .6s;
	transition: alt .6s;
	overflow-y: auto;
	z-index: 20;
}

.logo {
	position: relative;
	top: 2vh;
	width: 55%;
	text-align: center;
	margin-left: 22%;
	margin-right: auto;
	margin-bottom: 50px;
}
.logo p {
	font-size: 12px; /* clamp(1.4rem, 2.5vw, 1.6rem) */
	font-weight: 520;
	color: #483D8B;
	line-height: 1.1;
	letter-spacing: -0.05px;  /*  -0.05em */
	}
	
	.accordion {
		width: 250px;
		margin-top: 6vh;
		margin-left: 5px;
	}
	.accordion__item {
		font-size: clamp(1.8rem, 2.5vw, 2.2rem); /*  18px  */
		font-weight: 450;
		line-height: 1.2;
		margin: 4px 2px 0 2px;  
		background: #FFFACD; 
		cursor: pointer;
	}
	
	.accordion__item li:hover {
		font-weight: 900;
	}
	
	.accordion__item li a{
		display: block;
		height: 100%;
		width: 100%;
		color: #0000CD;

	}
	
	.accordion__item li {
		border-bottom: solid 5px #B0E0E6;
	}
	
	
	.accordion__title {
		position: relative;
		padding: 15px 60px 15px 10px;
		line-height: 2.2;
		font-size: clamp(2.4rem, 2.5vw, 2.8rem);  
		font-weight: 450;
		color: #0000CD;
		background-color: #B0E0E6; 
		cursor: pointer;
	}
	
	.accordion__title:hover {
	   font-weight: 900;
	}
	
	
	.accordion__title::before,
	.accordion__title::after {
		content: "";
		position: absolute;
		right: 20px;
		top: 0;
		bottom: 0;
		margin: auto 0;
		background-color: #0000CD;   /* #3abec1 */
		width: 20px;
		height: 5px;
		transition: all 0.3s;
	}
	
	.accordion__title::after {
		transform: rotate(90deg);
	} 
	
	/* アコーディオンのコンテンツ */
	.accordion__content {
		padding: 0px 10px 0px 25px;
		line-height: 2.6;
		display: none;
		cursor: pointer;
	}
	
	.accordion__content.is-open {
		display: block;
	}
	
	/* アコーディオン展開時の(-)アイコン */
	.accordion__item.is-active .accordion__title::before {
		transform: rotate(180deg);
	}
	
	.accordion__item.is-active .accordion__title::after {
		transform: rotate(180deg);
		opacity: 0;
	}	
	
.hamburger_btn {
	position: absolute;
	left: 2px;
	top: 0px;
	width: 55px;
	height: 55px;
	cursor: pointer;
	z-index: 30;
}

.hamburger_line {
	position: absolute;
	left: 12px;
	width: 40px;
	height: 5px;
	background-color: #757373;
	-webkit-transition: all .6s;
	transition: all .6s;
}

.hamburger_line_1 {
	top: 22px;
} 
.hamburger_line_2 {
	top: 32px;
}


.hamburger_btn::before {
	position: absolute;
	left: 4px;
	top: 4px;
	content: 'MENU';
	display: block;
	width: 100%;
	color: #757373;
	font-size: 16px; /* clamp(1.6rem, 2.5vw, 1.8rem) */
	font-weight: 560;
	text-decoration: none;
	text-align: center;
	white-space: nowrap;
}
.nav-open .hamburger_btn::before {
	content: 'CLOSE';
}


.black-bg {
	display: block;
	position: fixed;
	right: 0;
	top: 0;
	width: 100vw;
	height: 100vh;
	z-index: 10;
	background-color: #fff;
	opacity: 0;
	visibility: hidden;
	-webkit-transition: all .6s;
	transition: all .6s;
	cursor: pointer;
}

/*ハンバーガーon ナビゲーション表示*/
.nav-open .headerNav {
	left: 0;
}

/*透明背景表示*/
.nav-open .black-bg {
	opacity: 0.7;
	visibility: visible;
}


.hamburger_btn:not(.nav-open):hover .hamburger_line_1 {
	left: 12px;
	width: 32px; 
}
.hamburger_btn:not(.nav-open):hover .hamburger_line_2 {
	left: 12px;
	width: 32px; 
}

.nav-open .hamburger_line_1 {
	top: 32px;
	-webkit-transform: rotate(45deg);
	transform: rotate(45deg);
/*	top: 32px; */
}

.nav-open .hamburger_line_2 {
	top: 32px;
	-webkit-transform: rotate(-45deg);
	transform: rotate(-45deg);
}

#test {
		position: absolute;
		top: 13vw;
		right: 27.8vw;
	margin-top: 12vw;
	margin-left: 30vw;
	width: 40%;
	height: auto;
	animation: fadein 6s;
	-moz-animation: fadein 6s; /* Firefox */
	-webkit-animation: fadein 6s; /* Safari and Chrome */
	-o-animation: fadein 6s; /* Opera */
}

@keyframes fadein {
	from {
		opacity:0;
	}
	to {
		opacity:1;
	}
}
@-moz-keyframes fadein { /* Firefox */
	from {
		opacity:0;
	}
	to {
		opacity:1;
	}
}
@-webkit-keyframes fadein { /* Safari and Chrome */
	from {
		opacity:0;
	}
	to {
		opacity:1;
	}
}
@-o-keyframes fadein { /* Opera */
	from {
		opacity:0;
	}
	to {
		opacity: 1;
	}
}



.scroll-to-top-btn{
  position: fixed;
  bottom: clamp(1rem, 4vw, 3rem);
  right: clamp(1rem, 4vw, 3rem);
  height: clamp(5rem, 5vw, 8rem);
  width: clamp(5rem, 5vw, 8rem);
  color: #FFF;
  font-size: clamp(3.4rem, 3.5vw, 6rem);
  font-weight: 600;
  background-color:#9E9E9E;
  border: none;
  border-radius: 50%;
  outline: none;
  transform: rotate(90deg);
  padding-bottom: 0.15em;
  opacity: 0;
  transition-duration: 0.3s;
}

.scroll-to-top-btn:hover {
	color: #9E9E9E;
	background: #FFF;
	border: solid 1px #9E9E9E;
	cursor: pointer;
}

footer .logo {
	position: relative;
	margin: 0.8em auto;
	bottom: 0.5em;
	top: auto;
}

footer p {
	font-size: clamp(1.4rem, 2.5vw, 1.8rem);
	color: black;
	bottom: 1.8em;
}
.copyright {
	text-align: center;
	font-size: clamp(1.4rem, 2.5vw, 1.8rem);
	color: black;
}