.sainou-site-menu-block,
.sainou-site-menu {
	box-sizing: border-box;
	width: 100%;
	color: #2b537b;
}

.sainou-site-menu a {
	color: inherit;
	text-decoration: none;
}

.sainou-site-menu ul {
	margin: 0;
	padding: 0;
	list-style: none;
}

.sainou-site-menu button {
	color: inherit;
	font: inherit;
}

.sainou-site-menu__desktop {
	display: none;
}

.sainou-site-menu__mobile {
	display: block;
	width: 100%;
}

.sainou-site-menu__level--1 {
	border-top: 1px solid currentColor;
}

.sainou-site-menu__item--level-1 {
	border-bottom: 1px solid currentColor;
}

.sainou-site-menu__row {
	position: relative;
	display: flex;
	align-items: center;
	width: 100%;
}

.sainou-site-menu__row--level-1 {
	min-height: 54px;
	padding-inline: 25px 21px;
}

.sainou-site-menu__link--level-1 {
	display: flex;
	min-width: 0;
	align-items: center;
	gap: 15px;
	font-size: 15px;
	line-height: 19px;
	letter-spacing: 0.025em;
}

.sainou-site-menu__title,
.sainou-site-menu__english {
	display: inline-block;
}

.sainou-site-menu__toggle {
	margin-left: auto;
	padding: 0;
	background: transparent;
	border: 0;
	cursor: pointer;
}

.sainou-site-menu__toggle--level-1 {
	width: 30px;
	height: 30px;
}

.sainou-site-menu__plus {
	position: relative;
	display: block;
	width: 12px;
	height: 12px;
	margin: auto;
}

.sainou-site-menu__plus::before,
.sainou-site-menu__plus::after {
	content: "";
	position: absolute;
	top: 50%;
	left: 50%;
	width: 10px;
	height: 1px;
	background: currentColor;
	transform: translate(-50%, -50%);
	transition: transform 0.25s ease, opacity 0.25s ease;
}

.sainou-site-menu__plus::after {
	transform: translate(-50%, -50%) rotate(90deg);
}

.sainou-site-menu__toggle[aria-expanded="true"] .sainou-site-menu__plus::after {
	transform: translate(-50%, -50%) rotate(0deg);
	opacity: 0;
}

.sainou-site-menu__arrow {
	display: block;
	flex: 0 0 8px;
	width: 8px;
	height: 10px;
	margin-left: auto;
	background: url("../../assets/images/icon-menu-arrow-sp-min.svg") center / contain no-repeat;
}

.sainou-site-menu__submenu {
	display: grid;
	grid-template-rows: 0fr;
	transition: grid-template-rows 0.25s ease;
}

.sainou-site-menu__submenu > * {
	overflow: hidden;
}

.sainou-site-menu__submenu.is-open {
	grid-template-rows: 1fr;
}

.sainou-site-menu__item--level-2 {
	margin-block: 2px;
}

.sainou-site-menu__row--level-2 {
	min-height: 51px;
	padding: 0 25px 0 40px;
}

.sainou-site-menu__link--level-2 {
	display: flex;
	min-height: 51px;
	align-items: center;
	font-size: 15px;
	line-height: 19px;
	letter-spacing: 0.025em;
}

.sainou-site-menu__toggle--level-2 {
	flex: 0 0 30px;
	width: 30px;
	height: 30px;
}

.sainou-site-menu__level--3 {
	padding-bottom: 2px;
}

.sainou-site-menu__item--level-3 {
	margin-block: 2px;
}

.sainou-site-menu__link--level-3 {
	display: flex;
	min-height: 48px;
	align-items: center;
	padding: 0 25px 0 40px;
	font-size: 14px;
	line-height: 19px;
	letter-spacing: 0.025em;
}

.sainou-site-menu__dash {
	flex: 0 0 10px;
	width: 10px;
	margin-right: 5px;
}

.sainou-site-menu__promoted {
	border-top: 1px solid currentColor;
}

.sainou-site-menu__link--promoted {
	display: flex;
	min-height: 54px;
	align-items: center;
	gap: 15px;
	padding-inline: 25px 21px;
	font-size: 15px;
	line-height: 19px;
	letter-spacing: 0.025em;
}

/* 現在ページは強く、現在地までの経路は弱く示す */
.sainou-site-menu__item.is-current-trail > .sainou-site-menu__row,
.sainou-site-menu__promoted.is-current-trail,
.sainou-site-menu__item--level-3.is-current-trail {
	background: rgb(43 83 123 / 8%);
}

.sainou-site-menu__item.is-current-page > .sainou-site-menu__row,
.sainou-site-menu__promoted.is-current-page,
.sainou-site-menu__item--level-3.is-current-page {
	background: rgb(43 83 123 / 20%);
	box-shadow: inset 3px 0 0 currentColor;
}

/* Header overlay: 800px未満はスマホ型Accordionを使用 */
.sainou-site-menu--header .sainou-site-menu__desktop {
	display: none;
}

@media (640px <= width) {
	.sainou-site-menu--footer .sainou-site-menu__mobile {
		display: none;
	}

	.sainou-site-menu--footer .sainou-site-menu__desktop {
		display: block;
	}
}

@media (800px <= width) {
	.sainou-site-menu--header .sainou-site-menu__mobile {
		display: none;
	}

	.sainou-site-menu--header .sainou-site-menu__desktop {
		display: block;
	}
}

/* Tablet / PC 共通 */
@media (640px <= width) {
	.sainou-site-menu__desktop {
		width: min(1100px, 100%);
		margin-inline: auto;
	}

	.sainou-site-menu__desktop-grid {
		display: grid;
		grid-template-columns: repeat(2, minmax(0, 1fr));
		gap: 40px;
	}

	.sainou-site-menu__column {
		min-width: 0;
	}

	.sainou-site-menu__desktop-heading {
		height: 69px;
		border-bottom: 1px solid currentColor;
	}

	.sainou-site-menu__desktop-heading-title {
		font-size: 16px;
		line-height: 28px;
	}

	.sainou-site-menu__desktop-heading-english {
		font-size: 14px;
		line-height: 24px;
		letter-spacing: 0.025em;
	}

	.sainou-site-menu__desktop-children {
		margin-top: 7px !important;
	}

	.sainou-site-menu__desktop .sainou-site-menu__item--level-2 {
		margin-block: 2px;
	}

	.sainou-site-menu__desktop .sainou-site-menu__row--level-2 {
		min-height: 48px;
		padding: 0;
	}

	.sainou-site-menu__desktop .sainou-site-menu__link--level-2 {
		position: relative;
		min-height: 48px;
		font-size: 14px;
		line-height: 18px;
		letter-spacing: 0.025em;
	}

	.sainou-site-menu__desktop .sainou-site-menu__toggle {
		display: none;
	}

	.sainou-site-menu__desktop .sainou-site-menu__submenu {
		display: block;
		grid-template-rows: none;
	}

	.sainou-site-menu__desktop .sainou-site-menu__level--3 {
		overflow: visible;
	}

	.sainou-site-menu__desktop .sainou-site-menu__item--level-3 {
		margin: 0;
	}

	.sainou-site-menu__desktop .sainou-site-menu__link--level-3 {
		position: relative;
		min-height: 44px;
		padding: 0;
		font-size: 13px;
		line-height: 18px;
		letter-spacing: 0;
	}

	.sainou-site-menu__desktop .sainou-site-menu__dash {
		flex-basis: 10px;
		width: 10px;
		margin-right: 4px;
	}

	.sainou-site-menu__desktop .is-current-page > .sainou-site-menu__row,
	.sainou-site-menu__desktop .sainou-site-menu__item--level-3.is-current-page {
		background: rgb(43 83 123 / 20%);
		box-shadow: none;
	}

	.sainou-site-menu__desktop .is-current-trail > .sainou-site-menu__row,
	.sainou-site-menu__desktop .sainou-site-menu__item--level-3.is-current-trail {
		background: rgb(43 83 123 / 8%);
		box-shadow: none;
	}
}

/* Tablet */
@media (640px <= width < 1100px) {
	.sainou-site-menu__desktop-grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.sainou-site-menu__column--departments,
	.sainou-site-menu__column--services {
		grid-column: 1 / -1;
	}

	.sainou-site-menu__column--departments .sainou-site-menu__desktop-children {
		display: block;
	}

	.sainou-site-menu__department-columns {
		display: grid;
		grid-template-columns: repeat(2, minmax(0, 1fr));
		gap: 0 10px;
	}

	.sainou-site-menu__department-column {
		margin: 0;
		padding: 0;
		list-style: none;
	}


}

/* PC */
@media (1100px <= width) {
	.sainou-site-menu__desktop-grid {
		grid-template-columns: 210px 210px 330px 210px;
		gap: 40px;
		justify-content: center;
	}

	.sainou-site-menu__column--departments .sainou-site-menu__desktop-children {
		display: block;
	}

	.sainou-site-menu__column--departments .sainou-site-menu__department-columns {
		display: grid;
		grid-template-columns: repeat(2, 160px);
		gap: 0 10px;
	}


	.sainou-site-menu__desktop .sainou-site-menu__item.is-current-page > .sainou-site-menu__row,
	.sainou-site-menu__desktop .sainou-site-menu__item--level-3.is-current-page,
	.sainou-site-menu__desktop .sainou-site-menu__item.is-current-trail > .sainou-site-menu__row,
	.sainou-site-menu__desktop .sainou-site-menu__item--level-3.is-current-trail {
		background: transparent;
		box-shadow: none;
	}

	.sainou-site-menu__desktop .sainou-site-menu__item.is-current-trail > .sainou-site-menu__row,
	.sainou-site-menu__desktop .sainou-site-menu__item--level-3.is-current-trail {
		font-weight: 500;
	}

	.sainou-site-menu__desktop .sainou-site-menu__link--level-2::after,
	.sainou-site-menu__desktop .sainou-site-menu__link--level-3::after {
		content: "";
		position: absolute;
		right: 0;
		bottom: 5px;
		left: 0;
		height: 1px;
		background: currentColor;
		transform: scaleX(0);
		transform-origin: left center;
		transition: transform 0.12s ease-out;
	}

	.sainou-site-menu__desktop .is-current-page > .sainou-site-menu__row .sainou-site-menu__link--level-2::after,
	.sainou-site-menu__desktop .sainou-site-menu__item--level-3.is-current-page .sainou-site-menu__link--level-3::after,
	.sainou-site-menu__desktop .sainou-site-menu__link--level-2:hover::after,
	.sainou-site-menu__desktop .sainou-site-menu__link--level-3:hover::after {
		transform: scaleX(1);
	}

	.sainou-site-menu__desktop .sainou-site-menu__link--level-2:hover::after,
	.sainou-site-menu__desktop .sainou-site-menu__link--level-3:hover::after {
		transition-duration: 0.35s;
		transition-timing-function: ease;
	}
}

@media (prefers-reduced-motion: reduce) {
	.sainou-site-menu__submenu,
	.sainou-site-menu__plus::before,
	.sainou-site-menu__plus::after,
	.sainou-site-menu__desktop .sainou-site-menu__link--level-2::after,
	.sainou-site-menu__desktop .sainou-site-menu__link--level-3::after {
		transition: none;
	}
}

/* ==========================================================
 * beta5: クリック／タップ領域
 * 見た目の余白は維持し、paddingをリンク／ボタン側へ持たせる。
 * ========================================================== */

/* Smartphone */
@media (width < 640px) {
	.sainou-site-menu__row--level-1 {
		box-sizing: border-box;
		padding-inline: 0;
	}

	.sainou-site-menu__link--level-1 {
		display: flex;
		flex: 1 1 auto;
		align-self: stretch;
		box-sizing: border-box;
		width: 100%;
		min-width: 0;
		min-height: 54px;
		padding-left: 25px;
		align-items: center;
	}

	.sainou-site-menu__item--level-1:not(.has-children)
		.sainou-site-menu__link--level-1 {
		padding-right: 25px;
	}

	.sainou-site-menu__toggle--level-1 {
		align-self: stretch;
		flex: 0 0 58px;
		width: 58px;
		height: auto;
		min-height: 54px;
	}

	.sainou-site-menu__link--level-1 .sainou-site-menu__arrow {
		margin-left: auto;
	}

	.sainou-site-menu__row--level-2 {
		box-sizing: border-box;
		padding: 0;
	}

	.sainou-site-menu__link--level-2 {
		display: flex;
		flex: 1 1 auto;
		align-self: stretch;
		box-sizing: border-box;
		width: 100%;
		min-width: 0;
		min-height: 51px;
		padding-left: 40px;
		align-items: center;
	}

	.sainou-site-menu__item--level-2:not(.has-children)
		.sainou-site-menu__link--level-2 {
		padding-right: 25px;
	}

	.sainou-site-menu__toggle--level-2 {
		align-self: stretch;
		flex: 0 0 58px;
		width: 58px;
		height: auto;
		min-height: 51px;
	}


	.sainou-site-menu__link--promoted {
		padding-inline: 25px 25px;
	}


	.sainou-site-menu__link--level-1,
	.sainou-site-menu__link--promoted {
		letter-spacing: normal;
	}

	.sainou-site-menu__link--level-3,
	.sainou-site-menu__link--promoted {
		box-sizing: border-box;
		width: 100%;
	}

	.sainou-site-menu__link,
	.sainou-site-menu__toggle {
		-webkit-tap-highlight-color: transparent;
	}

	.sainou-site-menu__link:active {
		background-color: rgb(43 83 123 / 12%);
	}

	.sainou-site-menu__toggle:active {
		background:
			radial-gradient(
				circle at center,
				rgb(43 83 123 / 10%) 0 18px,
				transparent 19px
			);
	}
}

/* Header: 640〜799pxもAccordionのリンク領域を行いっぱいにする。 */
@media (640px <= width < 800px) {
	.sainou-site-menu--header .sainou-site-menu__row--level-1 {
		box-sizing: border-box;
		padding-inline: 0;
	}

	.sainou-site-menu--header .sainou-site-menu__link--level-1 {
		display: flex;
		flex: 1 1 auto;
		align-self: stretch;
		box-sizing: border-box;
		width: 100%;
		min-width: 0;
		min-height: 54px;
		padding-left: 25px;
		align-items: center;
	}

	.sainou-site-menu--header
		.sainou-site-menu__item--level-1:not(.has-children)
		.sainou-site-menu__link--level-1 {
		padding-right: 25px;
	}

	.sainou-site-menu--header .sainou-site-menu__toggle--level-1 {
		align-self: stretch;
		flex: 0 0 58px;
		width: 58px;
		height: auto;
		min-height: 54px;
	}

	.sainou-site-menu--header
		.sainou-site-menu__link--level-1
		.sainou-site-menu__arrow {
		margin-left: auto;
	}

	.sainou-site-menu--header .sainou-site-menu__row--level-2 {
		box-sizing: border-box;
		padding: 0;
	}

	.sainou-site-menu--header .sainou-site-menu__link--level-2 {
		display: flex;
		flex: 1 1 auto;
		align-self: stretch;
		box-sizing: border-box;
		width: 100%;
		min-width: 0;
		min-height: 51px;
		padding-left: 40px;
		align-items: center;
	}

	.sainou-site-menu--header
		.sainou-site-menu__item--level-2:not(.has-children)
		.sainou-site-menu__link--level-2 {
		padding-right: 25px;
	}

	.sainou-site-menu--header .sainou-site-menu__toggle--level-2 {
		align-self: stretch;
		flex: 0 0 58px;
		width: 58px;
		height: auto;
		min-height: 51px;
	}

	.sainou-site-menu--header .sainou-site-menu__link--promoted {
		padding-inline: 25px;
	}

	.sainou-site-menu--header .sainou-site-menu__link--level-1,
	.sainou-site-menu--header .sainou-site-menu__link--promoted {
		letter-spacing: normal;
	}

	.sainou-site-menu--header .sainou-site-menu__link--level-3,
	.sainou-site-menu--header .sainou-site-menu__link--promoted {
		box-sizing: border-box;
		width: 100%;
	}

	.sainou-site-menu--header .sainou-site-menu__link,
	.sainou-site-menu--header .sainou-site-menu__toggle {
		-webkit-tap-highlight-color: transparent;
	}

	.sainou-site-menu--header .sainou-site-menu__link:active {
		background-color: rgb(43 83 123 / 12%);
	}

	.sainou-site-menu--header .sainou-site-menu__toggle:active {
		background:
			radial-gradient(
				circle at center,
				rgb(43 83 123 / 10%) 0 18px,
				transparent 19px
			);
	}
}

/* Tablet: menu overall keeps 25px on both sides. */
@media (640px <= width < 1100px) {
	.sainou-site-menu__desktop {
		box-sizing: border-box;
		width: calc(100% - 50px);
		margin-inline: 25px;
	}

	.sainou-site-menu__desktop .sainou-site-menu__row--level-2 {
		box-sizing: border-box;
		width: 100%;
		padding: 0;
	}

	.sainou-site-menu__desktop .sainou-site-menu__link--level-2 {
		display: flex;
		box-sizing: border-box;
		width: 100%;
		min-height: 48px;
		align-items: center;
	}

	.sainou-site-menu__desktop .sainou-site-menu__link--level-3 {
		display: flex;
		box-sizing: border-box;
		width: 100%;
		min-height: 44px;
		align-items: center;
	}

}

/* PC */
@media (1100px <= width) {
	.sainou-site-menu__desktop .sainou-site-menu__row--level-2 {
		box-sizing: border-box;
		width: 100%;
		padding: 0;
	}

	.sainou-site-menu__desktop .sainou-site-menu__link--level-2 {
		display: flex;
		box-sizing: border-box;
		width: 100%;
		min-height: 48px;
		align-items: center;
	}

	.sainou-site-menu__desktop .sainou-site-menu__link--level-3 {
		display: flex;
		box-sizing: border-box;
		width: 100%;
		min-height: 44px;
		align-items: center;
	}

	.sainou-site-menu__desktop
		.sainou-site-menu__item--level-2 > .sainou-site-menu__row:active,
	.sainou-site-menu__desktop
		.sainou-site-menu__item--level-3:active {
		background-color: rgb(43 83 123 / 12%);
	}
}

/* beta8: スマホ昇格表示の第2階層でも第1階層と同じ英語表記を使用。 */
.sainou-site-menu__link--promoted .sainou-site-menu__english {
	flex: 0 0 auto;
}