* {
	box-sizing: border-box;
}

body {
	font-family: "MS UI Gothic", "Noto Sans JP", sans-serif;
	font-size: 15px;
	line-height: 1.6;
	color: #000;
	margin: 0;
}

html, body {
	overflow-x: hidden;
}

/* -----------------------
   ヘッダー / ナビ
------------------------ */
.site-header {
	font-size: 18px;
	padding: 35px 24px;
}

.main-nav {
	display: flex;
	justify-content: space-between;
	align-items: flex-start;
	max-width: 1200px;
	margin: 0 auto;
}

.nav-left {
	display: flex;
	flex-wrap: wrap;
	gap:40px;
	line-height: 1.2;
	padding: 0;
	margin: 0;
	list-style: none;
}

.nav-left a {
	font-size: 15px;
	color: #000000;
	text-decoration: underline;
}

.nav-left a:hover {
	color: #ffffff;
	background-color: #0000ff;
}

.brand-text {
	display: block;
	font-family: "MS UI Gothic", "Noto Sans JP", sans-serif;
	font-size: 14px;
	color: #0000ff;
	text-align:right
}

.brand-area {
	line-height: 1.2;
	text-align: right;
}

.last-updated {
	font-size: 10px;
}

.nav-left a.active {
	color: #0000ff;
	border: 1px solid #0000ff;
	text-decoration: none;
}

.nav-left a.active:hover {
	color: #ffffff;
	background-color: #0000ff;
}


/* -----------------------
   ホームのメイン
------------------------ */
.home-hero {
	flex: 1;
	display: flex;
	max-width: 1000px;
	width: auto;
	flex-direction: column;
	align-items: center;
	text-align: center;
	margin: 0 auto;
}

.logo-block {
	margin-top: 16px;
}

.brand-logo {
	height: 53px;
	width: auto;
}

.hero-image-frame img {
	display: block;
	width: 100%;
	height: auto;
	align-items: center;
}

/* -----------------------
   通常のページ
------------------------ */

.page-content {
	max-width: 1200px;
	padding: 0 24px 80px;
	margin: 60px auto 0;
}

.page-content h1 {
	font-size: 20px;
	color: #0000ff;
	margin: 60px 0 24px;
}

.page-content h2 {
	font-size: 17px;
	color: #0000ff;
	margin: 150px 0 4px;
}

.year {
	display: inline-block;
	border-bottom: 1px solid #000;
}

.note-small {
	display: block;
	font-size: 11px;
	line-height: 1.2;
	color: #444;
	margin-top: 12px;
}

.site-footer {
	width: 100%;
	font-size: 11px;
	color: #000;
	text-align: center;
	padding: 24px 0 32px;
	margin-top: auto;
}

.back-to-top {
	text-align: center;
	margin: 10px 0 10px;
}

.back-to-top a {
	display: inline-block;
	font-size: 13px;
	color: #0000ff;
	text-decoration: underline;
}

img {
	-webkit-user-drag: none;
	user-select: none;
	pointer-events: auto;
}

@media (max-width: 768px) {
	.site-header {
		font-size: 16px;
		padding: 24px 16px;
	}

	.main-nav {
		max-width: 100%;
		align-items: flex-start;
		margin: 0 auto;
	}

	.nav-left {
		display: flex;
		flex-direction: column;
		gap: 8px;
		padding: 0;
		margin: 0;
		list-style: none;
	}

	.nav-left li {
		margin: 0;
	}

	.nav-left a {
		font-size: 14px;
	}

	.brand-text {
		font-size: 12px;
	}

	.last-updated {
		font-size: 10px;
	}
}