/* ====================================
	Header
======================================*/
.site-header{
	background: white;	
	width: 100%;
	box-shadow: 0 2px 5px rgba(0,0,0,0.1);
	
	position: static;
	top: auto;
	z-index: auto;
}

.header-top{
	position: static;
	padding: 10px 20px;
	text-align: left;
	max-width: 10000px;
	margin: 0 auto;
	background: #eef4fa;
}

.header-top a{
	text-decoration: none;
	display: inline-block;
}

.logo{
	width: 80px;
	height: auto;
	margin-right: 30px;
	transform: translateY(12px);
}

.unit-name{
	font-family: "Inter", sans-serif;
	font-size: 2.7rem;
	font-weight: 700;
	color: #002d5e;
	letter-spacing: 0.01em;
	display: block;
	margin-bottom: -8px;	
}

.parent-org{
	font-family: "Inter", sans-serif;
	font-size: 1.0rem;
	color: #222;
	display: inline-block;
	margin-bottom: 0px;
}

/* ====================================
	Navigation
======================================*/
.header-nav{
	position: sticky;
	background-color: #002d5e;
	top: 0;
	z-index: 1000;
}

.nav-list{
	display: flex;
	list-style: none;
	margin: 0 auto;
	padding: 0;
	max-width: 100%;
	width: 100%;
}

.nav-list > li{
	flex: 1;
	text-align: center;
	position: relative;
}

.nav-list > li > a{
	color: #ffffff;
	text-decoration: none;
	display: block;
	padding: 15px 0px;
	font-size: 1.1rem;
	font-weight: 1000;
	transition: 0.5s;
	border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.nav-list a:hover{
	background-color: #004a99;
	color: #ffffff;
}

.nav-list li:last-child a{
	border-right: none;
} 

.submenu {
	display: none;
	position: absolute;
	top: 100%;
	left: 0;
	
	margin: 0;
	padding: 0;
	min-width: 100px;
	list-style: none;
	
	background: rgba(255,255,255,0.7);
	border: 1px solid #ccc;
	z-index: 1001;
}

.has-submenu:hover > .submenu{
	display: block;
}

.submenu li{
	text-align: left;
}

.submenu li a{
	display: block;
	padding: 10px 14px;
	color: #333;
	text-decoration: none;
	white-space: nowrap;
	border-right: none;
}

.submenu li a:hover{
	background-color: #eee;
	color: #333;
}
/* ====================================
	Contents
======================================*/
body{
	font-family: "Helvetica Neue", Arial, sans-serif;
	line-height: 1.6;
	color: #333;
	background-color: #f8f9fa;
	margin: 0;
	padding: 0 0 100px;
}
section{
	width: calc(100%-40px);
/*	max-width: 1500px; */
	padding: 0px 60px;
	margin: 0 auto;
	box-sizing: border-box;
}

.section-title{
	text-align: center;
	color: #002d5e;
	margin-bottom: 0px;
	font-size: 2.5rem;
	margin-top: 20px;
}

h3{
	align-items: center;
	margin-top: 30px;
	display: flex;
	font-size: 1.4rem;
	gap: 12px;
}

h3::before{
	content: "▪";
	color: #002d5e;
	font-size: 2.2em;
	margin-right: 4px;
	vertical-align: middle;
}

h3::after{
	content: "";
	flex: 1;
	height: 1px;
	background: #d5dee8;
}

.sound{
	display: flex;
	align-items: flex-start;
	gap: 0px;
}

.audio-list{
	display: flex;
	flex-direction: column;
	margin-top: 70px;
	gap: 120px;
}

.audio-item{
	display: flex;
	flex-direction: column;
}

.audio-title{
	margin: 0 0 5px 0;
	font-weight: bold;
	font-size: 18px;
}

.sound-img{
	text-align: left;
	margin: 10px 0;
}

.sound-img img{
	width: 90%;
/*	max-width: 1000px; */
	height: auto;
}

.sound-img img:hover{
	opecity: 0.8;
}

.audio-item audio{
	width: 200px;
}

.caution {
	font-size: 13px;
	color: red;
}

.viewer-container{
	display: flex;
	justify-content: center;
	align-items: flex-start;
	gap: 20px;
	width: 100%;
	flex-wrap: nowrap;
}

.viewer{
	display: flex;
	flex-direction: column;
	align-items: center;
	
	flex: 1 1 0;
	min-width: 0;
/*	max-width: 300px; */
	height: auto;
}

.viewer-title{
	color: red;
	z-index: 10;
	font-size: 20px;
	font-weight: bold;
	margin-bottom: 8px;
	text-align: center;
}

.viewer canvas{
	outline: none;
	display: block;
	width: 100%;
	height: auto;
	aspect-ratio: 1/2;
}