:root {
	--color-navy: #1d2087;
	--color-blue: #009fe8;
	--color-teal: #17adb0;
	--color-yellow: #faed00;
	--color-bg: #e8ecee;
	--color-box: #dbdcdc;
	--color-text: #231815;
	--color-white: #ffffff;
	--font-base: "Yu Gothic", "YuGothic", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
	--font-en: "Google Sans", "Product Sans", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { overflow-y: scroll; }

body {
	margin: 0;
	font-family: var(--font-base);
	font-weight: 500;
	color: var(--color-text);
	background: var(--color-bg);
	line-height: 1.8;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ---------- Header ---------- */
.site-header {
	position: fixed;
	top: 0; left: 0; right: 0;
	z-index: 100;
	padding: 79px 87px 0 80px;
	transition: padding .3s ease, background-color .3s ease;
}

.site-header.is-scrolled {
	padding-top: 16px;
	padding-bottom: 16px;
	background: rgba(232, 236, 238, .92);
	backdrop-filter: blur(6px);
}

.site-header__inner {
	display: flex;
	align-items: flex-start;
	justify-content: space-between;
}

.site-header__logo { display: block; }
.site-header__logo img { width: 126px; height: auto; transition: width .3s ease; }
.site-header.is-scrolled .site-header__logo img { width: 80px; }

.menu-toggle {
	display: flex;
	flex-direction: column;
	gap: 9px;
	width: 140px;
	margin-top: 12px;
	background: none;
	border: 0;
	cursor: pointer;
	padding: 0;
}

.menu-toggle i {
	display: block;
	width: 100%;
	height: 8px;
}
.menu-toggle i:nth-child(1) { background: var(--color-navy); }
.menu-toggle i:nth-child(2) { background: var(--color-blue); }
.menu-toggle i:nth-child(3) { background: var(--color-teal); }
.menu-toggle i:nth-child(4) { background: var(--color-yellow); }

.site-header.is-scrolled .menu-toggle { width: 70px; gap: 5px; margin-top: 0; }
.site-header.is-scrolled .menu-toggle i { height: 4px; }

/* ---------- Global nav overlay ---------- */
.global-nav {
	position: fixed;
	inset: 0;
	background: var(--color-navy);
	color: var(--color-white);
	z-index: 90;
	display: flex;
	align-items: center;
	justify-content: center;
	opacity: 0;
	visibility: hidden;
	transition: opacity .4s ease, visibility 0s linear .4s;
}

.global-nav.is-open {
	opacity: 1;
	visibility: visible;
	transition: opacity .4s ease, visibility 0s;
}

.global-nav__list {
	list-style: none;
	margin: 0;
	padding: 0;
	text-align: left;
}

.global-nav__list li { margin: 20px 0; }

.global-nav__list a {
	font-size: 28px;
	font-weight: 700;
}

/* ---------- Business page ---------- */
.page-hero {
	aspect-ratio: 1317 / 457;
	background-color: var(--color-box);
	background-size: cover;
	background-position: center;
}

.page-body {
	padding-bottom: 160px;
	background-color: var(--color-bg);
	background-image: var(--page-bg);
	background-size: 100% 100%;
	background-repeat: no-repeat;
}

.page-intro { padding-top: 110px; }

.page-intro__head {
	position: relative;
	padding-left: 10.2vw;
}

.page-intro__title {
	margin: 0;
	font-family: var(--font-en);
	font-size: 60px;
	font-weight: 500;
	line-height: 78px;
	letter-spacing: -.01em;
}

.page-intro__lead {
	margin: 0;
	font-family: var(--font-en), var(--font-base);
	font-size: 18px;
	line-height: 28px;
}

.page-intro__line {
	display: block;
	width: 62vw;
	height: 72px;
	margin: 18px 0 0 -9.4vw;
	overflow: visible;
}

.page-intro__line line {
	stroke: var(--color-text);
	stroke-width: 2px;
	vector-effect: non-scaling-stroke;
}

.page-intro__statement {
	margin: 100px 24px 0;
	text-align: center;
	font-size: 36px;
	font-weight: 700;
	line-height: 58px;
}

.business-list {
	max-width: 1058px;
	margin: 200px auto 0;
	padding: 0 24px;
}

.business-item {
	display: grid;
	grid-template-columns: 380px 1fr;
	column-gap: 50px;
	align-items: center;
	margin-bottom: 170px;
}

.business-item:last-child { margin-bottom: 0; }

.business-item--text-first { grid-template-columns: 1fr 380px; }
.business-item--text-first .page-slider { order: 2; }
.business-item--text-first .business-item__body { order: 1; padding-left: 30px; }
.business-item:not(.business-item--text-first) .business-item__body { padding-right: 33px; }

/* slider */
.page-slider {
	position: relative;
	overflow: hidden;
	aspect-ratio: 380 / 500;
	border-radius: 10px;
	background: var(--color-box);
	isolation: isolate;
}

.page-slider__slide {
	position: absolute;
	inset: 0;
	z-index: 1;
	overflow: hidden; /* 拡大した画像をスライド枠で切り取り、退場時にはみ出さないようにする */
	visibility: hidden;
}

.page-slider__slide.is-active { visibility: visible; }
.page-slider__slide.is-leaving { z-index: 2; }

.page-slider__img {
	width: 100%;
	height: 100%;
	max-width: none;
	object-fit: cover;
	transform-origin: 50% 50%;
	will-change: transform;
}

/* text */
.business-item__head {
	display: flex;
	align-items: flex-start;
	gap: 18px;
}

.business-item__num {
	font-family: var(--font-en);
	font-size: 18px;
	line-height: 42px;
}

.business-item__label {
	margin: 0;
	font-size: 26px;
	font-weight: 700;
	letter-spacing: .08em;
	line-height: 42px;
}

.business-item__en {
	margin: -2px 0 0;
	font-family: var(--font-en);
	font-size: 14px;
	line-height: 22px;
}

.business-item__title {
	margin: 30px 0 0 36px;
	font-size: clamp(26px, 2.73vw, 36px);
	font-weight: 700;
	line-height: 58px;
}

.business-item__text {
	max-width: 505px;
	margin: 22px 0 0 36px;
	font-size: 16px;
	line-height: 30px;
	letter-spacing: .02em;
}

/* ---------- Sustainability page ---------- */
.sustainability-page .page-body { padding-bottom: 200px; }
.sustainability-page .page-intro__statement { margin-top: 77px; }

.sus-lead {
	max-width: 1000px;
	margin: 81px auto 0;
	padding: 0 24px;
}

.sus-lead p {
	margin: 0 0 38px;
	font-size: 16px;
	line-height: 38px;
	font-feature-settings: "palt";
}
.sus-lead p:last-child { margin-bottom: 0; }

.sus-block {
	display: grid;
	grid-template-columns: 372px 1fr;
	grid-template-rows: auto auto;
	column-gap: 114px;
	align-items: start;
	max-width: 1109px;
	margin: 0 auto 234px;
	padding: 0 24px;
}
.sus-lead + .sus-block { margin-top: 247px; }
.sus-block:last-child { margin-bottom: 0; }

.sus-block .page-slider { grid-column: 1; grid-row: 1; aspect-ratio: 372 / 531; }
.sus-block__body { grid-column: 2; grid-row: 1; padding-top: 12px; }
.sus-block__logos { grid-column: 2; grid-row: 2; }

.sus-block--text-first { grid-template-columns: 1fr 372px; column-gap: 50px; }
.sus-block--text-first .page-slider { grid-column: 2; }
.sus-block--text-first .sus-block__body { grid-column: 1; padding-left: 68px; }
.sus-block--text-first .sus-block__logos { grid-column: 1; padding-left: 68px; }

.sus-block__label {
	margin: 0;
	font-size: 15px;
	font-weight: 400;
	line-height: 24px;
	color: #717071;
}

.sus-block__title {
	margin: 0;
	font-size: clamp(22px, 2.255vw, 29.7px);
	font-weight: 700;
	line-height: 48px;
	white-space: nowrap;
}

.sus-point { max-width: 503px; margin-top: 39px; }
.sus-block__title + .sus-point { margin-top: 52px; }

.sus-point__label {
	margin: 0;
	padding: 0 0 3px 3px;
	font-size: 17px;
	font-weight: 700;
	line-height: 28px;
	border-bottom: 1px solid rgba(35, 24, 21, .6);
}

.sus-point__text {
	margin: 6px 0 0 3px;
	font-size: 17px;
	font-weight: 400;
	line-height: 25.5px;
	font-feature-settings: "palt";
}

.sus-block__logos {
	display: flex;
	align-items: center;
	flex-wrap: wrap;
	gap: 16px 82px;
	margin: 85px 0 0;
	padding: 0;
	list-style: none;
}
.sus-block__logos li { display: block; }
.sus-block__logos a { display: block; transition: opacity .3s ease; }
.sus-block__logos a:hover { opacity: .7; }
.sus-block__logos img {
	width: auto;
	max-width: none;
	filter: drop-shadow(0 3px 6px rgba(0, 0, 0, .22));
}
.sus-block__logos img[src$=".png"] { width: 185px; }
.sus-block--text-first .sus-block__logos { gap: 16px 60px; margin-top: 78px; }
.sus-block:not(.sus-block--text-first) .sus-block__logos { padding-left: 0; }

/* ---------- Footer ---------- */
.site-footer {
	background: var(--color-navy);
	color: var(--color-white);
}

.site-footer__stripes {
	display: flex;
	flex-direction: column;
}
.site-footer__stripes span { display: block; height: 23px; }

.site-footer__inner {
	padding: 129px 128px 125px;
}

.site-footer__logo { display: block; width: 192px; }
.site-footer__logo img { width: 100%; height: auto; }

.site-footer__nav ul {
	list-style: none;
	margin: 66px 0 0;
	padding: 0;
}

.site-footer__nav li { font-size: 18px; font-weight: 700; line-height: 35.5px; }

/* ---------- Responsive ---------- */
@media (max-width: 1023px) {
	/* 内容は 508px 幅に収め、それより広い画面（タブレット）では中央寄せにする */
	:root { --gutter: max(26px, calc((100vw - 508px) / 2)); }

	.site-header { padding: 45px 22px 0; }
	.site-header__logo img { width: 56px; }
	.site-header.is-scrolled { padding-top: 12px; padding-bottom: 12px; }
	.site-header.is-scrolled .site-header__logo img { width: 44px; }
	.menu-toggle { width: 61px; gap: 4px; margin-top: 4px; }
	.menu-toggle i { height: 5px; }
	.site-header.is-scrolled .menu-toggle { width: 48px; gap: 3px; margin-top: 0; }
	.site-header.is-scrolled .menu-toggle i { height: 4px; }

	.page-hero { aspect-ratio: 375 / 250; max-height: 480px; width: 100%; }

	.page-body {
		padding-bottom: 90px;
		background-size: 100% auto;
		background-repeat: repeat-y;
	}

	.page-intro { padding-top: 86px; }
	.page-intro__head { padding-left: var(--gutter); }
	.page-intro__title { font-size: 24px; line-height: 36px; }
	.page-intro__lead { font-size: 11px; line-height: 20px; }
	.page-intro__line { width: 92vw; height: 29px; margin: 10px 0 0 calc(-1 * var(--gutter)); }
	.page-intro__line line { stroke-width: 1px; }
	.page-intro__statement {
		margin: 56px 20px 0;
		font-size: 12px;
		line-height: 21px;
	}

	.business-list { max-width: none; margin-top: 110px; padding: 0 var(--gutter); }

	.business-item,
	.business-item--text-first {
		grid-template-columns: 1fr;
		row-gap: 14px;
		margin-bottom: 100px;
	}
	.business-item--text-first .page-slider { order: 0; }
	.business-item--text-first .business-item__body,
	.business-item:not(.business-item--text-first) .business-item__body { order: 0; padding: 0; }

	.page-slider { aspect-ratio: 325 / 427; }

	.business-item__head { flex-direction: column; gap: 0; }
	.business-item__num { font-size: 13px; line-height: 22px; }
	.business-item__label { font-size: 18px; line-height: 26px; }
	.business-item__en { font-size: 10px; line-height: 16px; margin-top: 0; }
	.business-item__title { margin: 18px 0 0; font-size: 17px; line-height: 24px; }
	.business-item__text { max-width: none; margin: 14px 0 0; font-size: 12px; line-height: 21px; letter-spacing: .01em; }
	.pc-br { display: none; }

	/* Sustainability */
	.sustainability-page .page-body {
		padding-bottom: 130px;
		background-image: var(--page-bg-sp, var(--page-bg));
		background-size: 100% 100%;
		background-repeat: no-repeat;
	}
	.sustainability-page .page-intro__lead { display: none; }
	.sustainability-page .page-intro__statement { margin-top: 56px; }

	.sus-lead { max-width: none; margin-top: 38px; padding: 0 var(--gutter); }
	.sus-lead p { margin-bottom: 24px; font-size: 12px; line-height: 24px; }

	.sus-block,
	.sus-block--text-first {
		display: block;
		max-width: none;
		margin-bottom: 150px;
		padding: 0 var(--gutter);
	}
	.sus-lead + .sus-block { margin-top: 110px; }
	.sus-block:last-child { margin-bottom: 0; }

	.sus-block .page-slider { aspect-ratio: 325 / 427; }
	.sus-block__body,
	.sus-block--text-first .sus-block__body { max-width: none; padding: 50px 0 0; }
	.sus-block__label { font-size: 12px; line-height: 19px; }
	.sus-block__title { font-size: 16px; line-height: 26px; white-space: normal; }
	.sus-point { max-width: none; margin-top: 27px; }
	.sus-block__title + .sus-point { margin-top: 44px; }
	.sus-point__label { padding-left: 0; font-size: 12px; line-height: 20px; }
	.sus-point__text { margin: 8px 0 0; font-size: 12px; line-height: 19px; }
	.sus-block__logos { display: none; }

	.site-footer__stripes span { height: 15px; }
	.site-footer__inner { padding: 78px 41px 80px; }
	.site-footer__logo { width: 124px; }
	.site-footer__nav ul { margin-top: 44px; }
	.site-footer__nav li { font-size: 12px; line-height: 24px; }
}