:root {
	--primary-color: #3aabd2;
	--primary-dark: #2891b5;
	--primary-light: #e8f5fa;
	--text-dark: #222;
	--text-medium: #555;
	--text-light: #777;
	--border-color: #e0e0e0;
	--bg-light: #f8f9fa;
	--bg-activity: #fafbfc;
	--shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
	--shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
	--shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
	--shadow-card: 0 8px 20px rgba(0, 0, 0, 0.15);
	--transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

main {
	background-color: #fff;
	min-height: 100vh;
}

/* Page Title Section */
#id_pageTitle {
	position: relative;
	height: 280px;
	display: flex;
	align-items: center;
	justify-content: center;
	overflow: hidden;
	margin-bottom: 60px;
	z-index: 0;
}

#id_pageTitleBackground {
	position: absolute;
	width: 100%;
	height: 100%;
	top: 0;
	left: 0;
	z-index: 1;
}

#id_pageTitleBackgroundBottom {
	position: absolute;
	width: 100%;
	height: 100%;
	background: linear-gradient(135deg, #3aabd2 0%, #2891b5 100%);
}

#id_pageTitleBackgroundTop {
	position: absolute;
	width: 100%;
	height: 100%;
	background: linear-gradient(45deg, rgba(255,255,255,0.05) 0%, transparent 100%);
}

#id_pageTitleCaption {
	position: relative;
	z-index: 2;
	text-align: center;
	color: #fff;
	padding: 20px;
}

#id_pageTitleCaption h1 {
	font-size: 2.5rem;
	font-weight: normal;
	margin: 0;
	line-height: 1.4;
	font-family: 'Noto Serif JP', serif;
	letter-spacing: 0.05em;
}

#id_pageTitleCaption h1 span {
	display: block;
	font-size: 1.2rem;
	font-weight: 400;
	margin-top: 12px;
	opacity: 0.95;
	letter-spacing: 0.15em;
}

/* Container */
.class_flexContainer {
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 20px 80px;
	position: relative;
	z-index: 0;
}

/* Card Wrapper - 重なり構造のラッパー */
.class_articleCard {
	position: relative;
	margin-bottom: 70px;
	padding-left: 30px;
	opacity: 0;
	transform: translateY(20px);
	transition: var(--transition);
	z-index: 0;
	scroll-margin-top: 60px;
}

.class_articleCard.animation_fadeInShow {
	opacity: 1;
	transform: translateY(0);
}

/* 名前カード - 傾きなし、前面に表示 */
.class_articleCard h2 {
	/* h2はカードの内側いっぱい＆既定の位置に */
	position: absolute;
	top: 0;
	left: 30px;
	right: 0;              /* 幅を白カードと揃える */
	width: auto;
	box-sizing: border-box;
	border-radius: 12px 12px 0 0;    /* 白カードと同じ角丸 */
	border: 1px solid var(--border-color);
	border-bottom: none;
	background: #d0d0d0; /* フォールバック */
	background: linear-gradient(180deg, #d0d0d0 0%, #ffffff 100%);
	color: var(--text-dark);
	display: flex;
	align-items: baseline;
	gap: 16px;
	padding: 28px 36px 24px 32px;
	margin: 0;
	z-index: 3;
	transition: var(--transition);
	min-width: 0px;
}

.class_name {
	font-size: 1.8rem;
	font-weight: 700;
	font-family: 'Noto Serif JP', serif;
	letter-spacing: 0.05em;
	text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.class_nameSub {
	font-size: 1rem;
	font-weight: 400;
	letter-spacing: 0.05em;
	opacity: 0.95;
}

/* プロフィールカード - 背後に装飾カード */
.class_profileList {
	position: relative;
	padding: 100px 40px 40px 40px;
	margin-top: 0px;
	z-index: 2;
	transition: var(--transition);
	line-height: 1.8;
}

/* 白いカード本体（前面） */
.class_profileList::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background: #fff;
	border-radius: 12px;
	box-shadow: var(--shadow-md);
	border: 1px solid var(--border-color);
	z-index: 0;
	transition: var(--transition);
}

/* 背後の装飾カード（プライマリーカラー、傾き付き） */
.class_profileList::after {
	content: '';
	position: absolute;
	top: 8px;
	left: -6px;
	right: 6px;
	bottom: -8px;
	background: var(--primary-color);
	border-radius: 12px;
	transform: rotate(-1.2deg);
	z-index: -1;
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
	transition: var(--transition);
	pointer-events: none;
}

/* 白いカードの内容を確実に前面に */
.class_profileList > * {
	position: relative;
	z-index: 1;
}

.class_profileList dl {
	margin: 0;
}

.class_profileList dt {
	font-size: 1rem;
	font-weight: 700;
	color: var(--primary-color);
	margin: 32px 0 16px 0;
	padding: 8px 12px;
	background: var(--primary-light);
	border-left: 4px solid var(--primary-color);
	border-radius: 4px;
	letter-spacing: 0.05em;
}

.class_profileList dt:first-child {
	margin-top: 0;
}

.class_profileList dd {
	margin: 0 0 12px 0;
	padding: 12px 16px;
	color: var(--text-medium);
	font-size: 0.95rem;
	background: var(--bg-activity);
	border-radius: 6px;
	border-left: 3px solid transparent;
	transition: var(--transition);
}

.class_profileList dd:hover {
	background: #f0f4f8;
	border-left-color: var(--primary-color);
	transform: translateX(4px);
}

/* 年号と内容を常に分離 */
.class_profileList dd span {
	display: block;
	position: relative;
}

.class_profileList dd span:first-child {
	font-weight: 600;
	color: var(--text-dark);
	padding: 4px 10px;
	background: #fff;
	border-radius: 4px;
	font-size: 0.9rem;
	border: 1px solid var(--border-color);
	margin-bottom: 6px;
	display: inline-block;
	min-width: 70px;
}

.class_profileList dd span:last-child {
	padding-left: 0;
	line-height: 1.7;
}

.class_profileList dd span small {
	display: inline-block;
	margin-left: 8px;
	font-size: 0.85rem;
	color: var(--text-light);
}

/* Links in Profile */
.class_profileList a {
	color: var(--primary-color);
	text-decoration: none;
	transition: var(--transition);
	border-bottom: 1px solid var(--primary-color);
	padding-bottom: 2px;
	position: relative;
	display: inline-block;
}

.class_profileList a::before {
	content: "🔗";
	margin-right: 4px;
	font-size: 0.85em;
	opacity: 0.7;
}

.class_profileList a:hover {
	background-color: rgba(58, 171, 210, 0.1);
	border-bottom-color: var(--text-dark);
	opacity: 1;
}

/* Nested Lists for Publications */
.class_profileList dd dt {
	font-size: 0.9rem;
	font-weight: 600;
	color: var(--text-dark);
	margin: 20px 0 12px 0;
	padding: 8px 12px;
	border-left: 3px solid var(--primary-color);
	background: #fff;
	border-radius: 4px;
}

.class_profileList dd dd {
	margin-left: 20px;
	margin-bottom: 16px;
	padding: 14px 18px;
	border-left: 3px solid var(--primary-color);
	background: #fff;
	border-radius: 6px;
	box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.class_profileList dd dd:hover {
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
	transform: translateX(6px);
}

/* Responsive Design */
@media screen and (max-width: 768px) {
	#id_pageTitle {
		height: 220px;
		margin-bottom: 40px;
	}

	#id_pageTitleCaption h1 {
		font-size: 2rem;
	}

	#id_pageTitleCaption h1 span {
		font-size: 1rem;
	}

	.class_articleCard {
		margin-bottom: 65px;
		padding-left: 20px;
		scroll-margin-top: 60px;
	}

	.class_articleCard h2 {
		left: 20px;
		right: 0;
		flex-direction: column;
		gap: 8px;
		align-items: flex-start;
		padding: 20px 28px 18px 24px;
		min-width: 240px;
	}

	.class_name {
		font-size: 1.6rem;
	}

	.class_nameSub {
		font-size: 0.9rem;
	}

	.class_profileList {
		padding: 90px 24px 32px 24px;
		margin-top: 40px;
	}

	.class_profileList::after {
		top: 6px;
		left: -4px;
		right: 4px;
		bottom: -6px;
		transform: rotate(-1deg);
	}

	.class_profileList dd {
		padding: 10px 12px;
		margin-bottom: 10px;
	}

	.class_profileList dd span:first-child {
		min-width: 60px;
		font-size: 0.85rem;
	}

	.class_profileList dd dd {
		margin-left: 12px;
		padding: 12px 14px;
		margin-bottom: 12px;
	}
}

@media screen and (max-width: 480px) {
	.class_flexContainer {
		padding: 0 16px 60px;
	}

	.class_articleCard {
		margin-bottom: 60px;
		padding-left: 15px;
		scroll-margin-top: 60px;
	}

	.class_articleCard h2 {
		padding: 20px 24px 24px 20px;
		min-width: 200px;
	}

	.class_name {
		font-size: 1.4rem;
	}

	.class_profileList {
		padding: 85px 20px 28px 20px;
		margin-top: 35px;
	}

	.class_profileList::after {
		top: 5px;
		left: -3px;
		right: 3px;
		bottom: -5px;
		transform: rotate(-0.8deg);
	}

	.class_profileList dd span:first-child {
		margin-bottom: 4px;
	}
}

/* Animation */
@keyframes fadeInUp {
	from {
		opacity: 0;
		transform: translateY(20px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

.class_scrollAnimation {
	animation-fill-mode: both;
}

.class_scrollAnimation.animation_fadeInShow {
	animation: fadeInUp 0.6s ease-out;
}
/* ==========================================
   Members Navigation
   ========================================== */

.class_membersNav {
	background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
	padding: 60px 20px;
	margin-bottom: 40px;
	border-bottom: 1px solid var(--border-color);
}

.class_membersNavContainer {
	max-width: 1200px;
	margin: 0 auto;
}

.class_membersNavTitle {
	font-family: 'Noto Serif JP', serif;
	font-size: 1.8rem;
	font-weight: 700;
	color: var(--text-dark);
	text-align: center;
	margin: 0 0 40px 0;
	padding-bottom: 16px;
	border-bottom: 3px solid var(--primary-color);
	display: inline-block;
	width: 100%;
	letter-spacing: 0.05em;
}

.class_membersNavGrid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
	gap: 20px;
	width: 100%;
}

.class_memberNavCard {
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	padding: 24px 20px;
	background: #fff;
	border: 1px solid var(--border-color);
	border-radius: 8px;
	text-decoration: none;
	transition: var(--transition);
	box-shadow: var(--shadow-sm);
	position: relative;
	overflow: hidden;
	min-height: 90px;
}

.class_memberNavCard::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 4px;
	background: linear-gradient(90deg, var(--primary-color) 0%, var(--primary-dark) 100%);
	transform: scaleX(0);
	transform-origin: left;
	transition: transform 0.3s ease;
}

.class_memberNavCard:hover::before {
	transform: scaleX(1);
}

.class_memberNavCard:hover {
	transform: translateY(-4px);
	box-shadow: var(--shadow-md);
	border-color: var(--primary-color);
	background: linear-gradient(135deg, #ffffff 0%, #f8fcfe 100%);
}

.class_memberNavName {
	font-family: 'Noto Serif JP', serif;
	font-size: 1.2rem;
	font-weight: 700;
	color: var(--text-dark);
	margin-bottom: 8px;
	letter-spacing: 0.05em;
	transition: var(--transition);
}

.class_memberNavCard:hover .class_memberNavName {
	color: var(--primary-color);
}

.class_memberNavNameEn {
	font-size: 0.85rem;
	font-weight: 400;
	color: var(--text-light);
	letter-spacing: 0.05em;
	transition: var(--transition);
}

.class_memberNavCard:hover .class_memberNavNameEn {
	color: var(--text-medium);
}

/* Responsive Design for Members Navigation */
@media screen and (max-width: 768px) {
	.class_membersNav {
		padding: 50px 20px;
		margin-bottom: 30px;
	}

	.class_membersNavTitle {
		font-size: 1.6rem;
		margin-bottom: 32px;
		padding-bottom: 12px;
	}

	.class_membersNavGrid {
		grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
		gap: 16px;
	}

	.class_memberNavCard {
		padding: 20px 16px;
		min-height: 80px;
	}

	.class_memberNavName {
		font-size: 1.1rem;
		margin-bottom: 6px;
	}

	.class_memberNavNameEn {
		font-size: 0.8rem;
	}
}

@media screen and (max-width: 480px) {
	.class_membersNav {
		padding: 40px 16px;
		margin-bottom: 24px;
	}

	.class_membersNavTitle {
		font-size: 1.4rem;
		margin-bottom: 28px;
	}

	.class_membersNavGrid {
		grid-template-columns: 1fr;
		gap: 12px;
	}

	.class_memberNavCard {
		padding: 18px 16px;
		min-height: 70px;
	}

	.class_memberNavName {
		font-size: 1.05rem;
	}
}