@charset "UTF-8";
/* CSS Document */

*,
*::before,
*::after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

:root {
	--navy: #0d2137;
	--navy-mid: #163655;
	--blue: #1a6fa8;
	--blue-light: #2d8fcf;
	--accent: #e85c1a;
	--accent-light: #f27340;
	--gray-dark: #2a2a2a;
	--gray-mid: #555;
	--gray-light: #f4f4f2;
	--white: #ffffff;
	--border: #d0d8e0;
	--font-heading: "Oswald", sans-serif;
	--font-body: "Noto Sans JP", sans-serif;
}

html {
	scroll-behavior: smooth;
	font-size: 100%;
}
body {
	font-family: var(--font-body);
	color: var(--gray-dark);
	background: var(--white);
	line-height: 1.7;
	text-align: left;
}

body a,
body a:link,
body a:visited,
body a:active {
	text-decoration: none;
}

/* ── SITE HEADER ── */
.site-header {
	width: 100%;
	background: #fff;
	border-bottom: 1px solid #e0e0e0;
	position: sticky;
	top: 0;
	z-index: 1000;
	box-shadow: 0 1px 4px rgba(0, 0, 0, 0.07);
}
.site-header-inner {
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 24px;
	height: 70px;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 20px;
}
/* Logo */
.header-logo a {
	display: flex;
	align-items: center;
	gap: 10px;
	text-decoration: none;
}
.header-logo img {
	height: 48px;
	width: auto;
	display: block;
}
/* Tel */
.header-tel {
	display: flex;
	align-items: center;
}
.header-tel a {
	display: block;
	text-decoration: none;
}
.header-tel img {
	height: 44px;
	width: auto;
	display: block;
}
/* Right nav */
.header-nav {
	display: flex;
	align-items: center;
	gap: 12px;
	flex-shrink: 0;
}
.header-contact {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 3px;
	text-decoration: none;
	color: #333;
}
.header-contact img {
	width: 28px;
	height: auto;
	display: block;
}
.header-contact span {
	font-size: 10px;
	letter-spacing: 0.04em;
	color: #444;
	white-space: nowrap;
}
.header-menu-btn {
	display: flex;
	align-items: center;
	gap: 8px;
	background: #1a6fa8;
	color: #fff;
	border: none;
	padding: 0 18px;
	height: 44px;
	font-size: 0.88rem;
	font-weight: 700;
	letter-spacing: 0.1em;
	cursor: pointer;
	text-decoration: none;
	transition: background 0.2s;
}
.header-menu-btn:hover {
	background: #155d8e;
}
.header-menu-btn svg {
	flex-shrink: 0;
}

/* ── HERO ── */
.hero {
	position: relative;
	height: 100vh;
	min-height: 600px;
	overflow: hidden;
	display: flex;
	align-items: flex-end;
	padding-bottom: 80px;
}
.hero-bg {
	position: absolute;
	inset: 0;
	background-image: url("../img/silo-cleaning/MV.png");
	background-size: cover;
	background-position: center 40%;
	transform: scale(1.05);
	animation: zoomOut 8s ease forwards;
}
@keyframes zoomOut {
	from {
		transform: scale(1.05);
	}
	to {
		transform: scale(1);
	}
}
.hero-overlay {
	position: absolute;
	inset: 0;
	background: linear-gradient(to top, rgba(13, 33, 55, 0.92) 0%, rgba(13, 33, 55, 0.4) 55%, rgba(13, 33, 55, 0.1) 100%);
}
.hero-content {
	position: relative;
	max-width: 1100px;
	margin: auto 0px auto 420px;
	padding: 0 40px;
	width: 100%;
	animation: fadeUp 1s 0.3s both;
}
@keyframes fadeUp {
	from {
		opacity: 0;
		transform: translateY(30px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}
.hero-label {
	display: inline-block;
	font-family: var(--font-heading);
	font-size: 11px;
	letter-spacing: 0.15em;
	text-transform: uppercase;
	color: var(--accent-light);
	border: 1px solid var(--accent-light);
	padding: 5px 14px;
	margin-bottom: 20px;
}
.hero h1 {
	font-family: var(--font-heading);
	font-size: clamp(2.6rem, 6vw, 5rem);
	font-weight: 600;
	color: var(--white);
	line-height: 1.05;
	letter-spacing: 0.02em;
	margin-bottom: 6px;
}
.hero h1 span {
	display: block;
	font-size: clamp(1.2rem, 2.5vw, 1.8rem);
	font-weight: 400;
	letter-spacing: 0.12em;
	color: rgba(255, 255, 255, 0.75);
	margin-bottom: 10px;
}
.hero-lead {
	font-size: clamp(0.9rem, 1.6vw, 1.05rem);
	color: rgba(255, 255, 255, 0.85);
	max-width: 600px;
	margin-bottom: 36px;
	line-height: 1.85;
}
.hero-cta {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	background: var(--accent);
	color: var(--white);
	font-family: var(--font-body);
	font-size: 0.95rem;
	font-weight: 700;
	padding: 16px 34px;
	text-decoration: none;
	letter-spacing: 0.05em;
	transition: background 0.2s;
	color: #fff !important;
}
.hero-cta:hover {
	background: var(--accent-light);
}
.hero-cta svg {
	flex-shrink: 0;
}

/* ── BREADCRUMB ── */
.breadcrumb {
	background: var(--gray-light);
	padding: 12px 0;
	border-bottom: 1px solid var(--border);
}
.breadcrumb-inner {
	max-width: 1100px;
	margin: 0 auto;
	padding: 0 40px;
	font-size: 0.78rem;
	color: var(--gray-mid);
}
.breadcrumb-inner a {
	color: var(--blue) !important;
	text-decoration: none;
}
.breadcrumb-inner a:hover {
	text-decoration: underline;
}

/* ── SECTION COMMON ── */
section {
	padding: 88px 0;
}
.container {
	max-width: 1100px;
	margin: 0 auto;
	padding: 0 40px;
}
.section-label {
	font-family: var(--font-heading);
	font-size: 11px;
	letter-spacing: 0.18em;
	text-transform: uppercase;
	color: var(--blue);
	margin-bottom: 10px;
}
.section-title {
	font-family: var(--font-heading);
	font-size: clamp(1.6rem, 3vw, 2.4rem);
	font-weight: 600;
	color: var(--navy);
	line-height: 1.2;
	margin-bottom: 20px;
	text-align: left;
}
.section-title em {
	font-style: normal;
	color: var(--accent);
}
.section-lead {
	font-size: 0.95rem;
	color: var(--gray-mid);
	max-width: 640px;
	line-height: 1.9;
}
.before-after .section-lead {
	max-width: 660px;
}

/* ── INTRO (LEAD) ── */
.intro {
	background: var(--white);
	padding-top: 72px;
	padding-bottom: 72px;
}
.intro-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 60px;
	align-items: center;
}
.intro-text p {
	font-size: 0.97rem;
	line-height: 2;
	color: var(--gray-dark);
	margin-bottom: 20px;
}
.intro-highlight {
	border-left: 4px solid var(--accent);
	padding: 16px 20px;
	background: #fff7f3;
	font-size: 0.93rem;
	font-weight: 500;
	color: var(--navy);
	margin-top: 10px;
	line-height: 1.8;
}
.intro-img {
	width: 100%;
	aspect-ratio: 4/3;
	object-fit: cover;
	display: block;
}

/* ── CONCERN ── */
.concern {
	background: var(--navy);
}
.concern .section-title {
	color: var(--white);
}
.concern .section-label {
	color: var(--accent-light);
}
.concern-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 2px;
	margin-top: 48px;
	border: 1px solid rgba(255, 255, 255, 0.08);
}
.concern-item {
	padding: 32px 28px;
	border: 1px solid rgba(255, 255, 255, 0.06);
	background: rgba(255, 255, 255, 0.03);
	display: flex;
	gap: 16px;
	align-items: flex-start;
	transition: background 0.2s;
}
.concern-item:hover {
	background: rgba(255, 255, 255, 0.06);
}
.concern-icon {
	width: 40px;
	height: 40px;
	background: var(--accent);
	color: white;
	display: flex;
	align-items: center;
	justify-content: center;
	flex-shrink: 0;
	font-size: 18px;
}
.concern-text {
	font-size: 0.92rem;
	color: rgba(255, 255, 255, 0.85);
	line-height: 1.7;
	font-weight: 400;
}
.concern-text strong {
	display: block;
	font-size: 0.98rem;
	color: var(--white);
	margin-bottom: 4px;
}

/* ── CLEANING SCENE ── */
.cleaning-scene {
	background: var(--gray-light);
	padding: 88px 0;
}
.scene-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 60px;
	align-items: center;
}
.scene-img-wrap {
	position: relative;
}
.scene-img {
	width: 100%;
	aspect-ratio: 16/10;
	object-fit: cover;
	display: block;
}
.scene-badge {
	position: absolute;
	bottom: -18px;
	right: -18px;
	background: var(--navy);
	color: var(--white);
	font-family: var(--font-heading);
	font-size: 13px;
	letter-spacing: 0.08em;
	padding: 18px 24px;
	line-height: 1.4;
	text-align: center;
}
.scene-badge strong {
	display: block;
	font-size: 2rem;
	color: var(--accent-light);
	line-height: 1;
}

/* ── MECHANISM ── */
.mechanism {
	background: var(--white);
	padding: 88px 0;
}
.mechanism-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 60px;
	align-items: center;
	margin-top: 48px;
}
.mechanism-img {
	width: 100%;
	object-fit: contain;
	display: block;
	background: var(--gray-light);
	padding: 24px;
}
.mechanism-steps {
	display: flex;
	flex-direction: column;
	gap: 0;
}
.mstep {
	display: flex;
	gap: 20px;
	padding: 20px 0;
	border-bottom: 1px solid var(--border);
}
.mstep:last-child {
	border-bottom: none;
}
.mstep-num {
	font-family: var(--font-heading);
	font-size: 2rem;
	font-weight: 600;
	color: var(--blue-light);
	line-height: 1;
	min-width: 40px;
	padding-top: 2px;
}
.mstep-body strong {
	display: block;
	font-size: 0.97rem;
	font-weight: 700;
	color: var(--navy);
	margin-bottom: 4px;
}
.mstep-body p {
	font-size: 0.87rem;
	color: var(--gray-mid);
	line-height: 1.7;
}

/* ── FLOW ── */
.flow {
	background: var(--gray-light);
}
.flow-steps {
	display: grid;
	grid-template-columns: repeat(6, 1fr);
	gap: 0;
	margin-top: 56px;
	position: relative;
}
.flow-step {
	text-align: center;
	padding: 28px 12px;
	position: relative;
}
.flow-step::after {
	content: "▶";
	position: absolute;
	right: -8px;
	top: 50%;
	transform: translateY(-50%);
	font-size: 12px;
	color: var(--blue-light);
}
.flow-step:last-child::after {
	display: none;
}
.flow-num {
	width: 44px;
	height: 44px;
	background: var(--navy);
	color: var(--white);
	font-family: var(--font-heading);
	font-size: 1.2rem;
	font-weight: 600;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	margin: 0 auto 12px;
}
.flow-step strong {
	display: block;
	font-size: 0.82rem;
	font-weight: 700;
	color: var(--navy);
	margin-bottom: 4px;
	line-height: 1.4;
}
.flow-step p {
	font-size: 0.74rem;
	color: var(--gray-mid);
	line-height: 1.5;
}
.flow-onestop {
	margin-top: 40px;
	background: var(--navy-mid);
	color: var(--white);
	padding: 28px 36px;
	display: flex;
	align-items: center;
	gap: 24px;
}
.onestop-icon {
	background: var(--accent);
	width: 52px;
	height: 52px;
	display: flex;
	align-items: center;
	justify-content: center;
	flex-shrink: 0;
	font-size: 24px;
}
.onestop-text strong {
	display: block;
	font-family: var(--font-heading);
	font-size: 1.1rem;
	letter-spacing: 0.06em;
	color: var(--accent-light);
	margin-bottom: 4px;
}
.onestop-text p {
	font-size: 0.88rem;
	color: rgba(255, 255, 255, 0.8);
	line-height: 1.7;
}

/* ── FAQ ── */
.faq {
	background: var(--white);
}
.faq-list {
	margin-top: 48px;
	display: flex;
	flex-direction: column;
	gap: 0;
	border-top: 1px solid var(--border);
}
.faq-item {
	border-bottom: 1px solid var(--border);
	padding: 0;
	overflow: hidden;
}
.faq-q {
	width: 100%;
	background: none;
	border: none;
	cursor: pointer;
	display: flex;
	align-items: flex-start;
	gap: 16px;
	padding: 24px 0;
	text-align: left;
	font-family: var(--font-body);
}
.faq-q-icon {
	width: 28px;
	height: 28px;
	background: var(--blue);
	color: var(--white);
	font-family: var(--font-heading);
	font-size: 1rem;
	font-weight: 600;
	display: flex;
	align-items: center;
	justify-content: center;
	flex-shrink: 0;
	margin-top: 1px;
}
.faq-q-text {
	font-size: 0.97rem;
	font-weight: 700;
	color: var(--navy);
	line-height: 1.6;
	flex: 1;
}
.faq-toggle {
	font-size: 20px;
	color: var(--blue);
	transition: transform 0.3s;
	flex-shrink: 0;
	margin-top: 2px;
}
.faq-item.open .faq-toggle {
	transform: rotate(45deg);
}
.faq-a {
	max-height: 0;
	overflow: hidden;
	transition: max-height 0.35s ease;
}
.faq-item.open .faq-a {
	max-height: 200px;
}
.faq-a-inner {
	display: flex;
	gap: 16px;
	padding: 0 0 24px 44px;
}
.faq-a-icon {
	width: 28px;
	height: 28px;
	background: #f0f4f0;
	color: var(--accent);
	font-family: var(--font-heading);
	font-size: 1rem;
	font-weight: 600;
	display: flex;
	align-items: center;
	justify-content: center;
	flex-shrink: 0;
}
.faq-a-text {
	font-size: 0.92rem;
	color: var(--gray-mid);
	line-height: 1.8;
}

/* ── RELATED ── */
.related {
	background: var(--gray-light);
	padding: 72px 0;
}
.related-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 16px;
	margin-top: 40px;
}
.related-card {
	background: var(--white);
	border: 1px solid var(--border);
	padding: 24px 20px;
	text-decoration: none;
	color: var(--navy);
	display: flex;
	align-items: flex-start;
	gap: 12px;
	transition:
		border-color 0.2s,
		box-shadow 0.2s;
}
.related-card:hover {
	border-color: var(--blue);
	box-shadow: 0 4px 16px rgba(26, 111, 168, 0.1);
}
.related-card-icon {
	color: var(--blue-light);
	font-size: 22px;
	flex-shrink: 0;
	margin-top: 2px;
}
.related-card p {
	font-size: 0.87rem;
	font-weight: 700;
	line-height: 1.5;
}
.related-card small {
	font-size: 0.75rem;
	color: var(--gray-mid);
	font-weight: 400;
	display: block;
	margin-top: 3px;
}

/* ── CTA BANNER ── */
.cta-banner {
	background: var(--navy);
	padding: 72px 0;
	text-align: center;
}
.cta-banner h2 {
	font-family: var(--font-heading);
	font-size: clamp(1.5rem, 3vw, 2.2rem);
	font-weight: 600;
	color: var(--white);
	letter-spacing: 0.04em;
	margin-bottom: 12px;
}
.cta-banner p {
	font-size: 0.93rem;
	color: rgba(255, 255, 255, 0.7);
	margin-bottom: 36px;
	line-height: 1.8;
}
.cta-row {
	display: flex;
	justify-content: center;
	gap: 20px;
	flex-wrap: wrap;
}
.btn-primary {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	background: var(--accent);
	color: var(--white);
	font-family: var(--font-body);
	font-size: 0.97rem;
	font-weight: 700;
	padding: 18px 40px;
	text-decoration: none;
	letter-spacing: 0.06em;
	transition: background 0.2s;
	color: #fff !important;
}
.btn-primary:hover {
	background: var(--accent-light);
}
.btn-secondary {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	background: transparent;
	border: 1px solid rgba(255, 255, 255, 0.4);
	color: var(--white);
	font-family: var(--font-body);
	font-size: 0.97rem;
	font-weight: 500;
	padding: 18px 40px;
	text-decoration: none;
	letter-spacing: 0.06em;
	transition:
		border-color 0.2s,
		background 0.2s;
	color: #fff !important;
}
.btn-secondary:hover {
	border-color: var(--white);
	background: rgba(255, 255, 255, 0.05);
}
.cta-tel {
	margin-top: 24px;
	font-size: 0.85rem;
	color: rgba(255, 255, 255, 0.5);
}
.cta-tel strong {
	color: rgba(255, 255, 255, 0.85);
	font-size: 1.5rem;
	font-family: var(--font-heading);
	letter-spacing: 0.08em;
	margin: 0 6px;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
	html {
		font-size: 112.5%;
	}
	.container {
		padding: 0 20px;
	}
	.hero-bg {
		background-position: left 7% top;
	}
	.hero-content {
		padding: 0 20px;
	}
	.intro-grid,
	.scene-grid,
	.mechanism-grid {
		grid-template-columns: 1fr;
		gap: 32px;
	}
	.concern-grid {
		grid-template-columns: 1fr;
	}
	.flow-steps {
		grid-template-columns: repeat(2, 1fr);
	}
	.flow-step::after {
		display: none;
	}
	.related-grid {
		grid-template-columns: repeat(2, 1fr);
	}
	.scene-badge {
		position: static;
		margin-top: 16px;
	}
	section {
		padding: 60px 0;
	}
}
/* ── BEFORE / AFTER ── */
.before-after {
	background: var(--navy);
}
.before-after .section-label {
	color: var(--accent-light);
}
.before-after .section-title {
	color: var(--white);
}
.before-after .section-lead {
	color: rgba(255, 255, 255, 0.7);
	margin-bottom: 48px;
}

.ba-wrap {
	max-width: 880px;
	margin: 0 auto;
}
.ba-slider {
	position: relative;
	width: 100%;
	aspect-ratio: 16/9;
	overflow: hidden;
	cursor: col-resize;
	user-select: none;
	-webkit-user-select: none;
}
.ba-after,
.ba-before {
	position: absolute;
	inset: 0;
}
.ba-after img,
.ba-before img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
	pointer-events: none;
}
.ba-before {
	clip-path: inset(0 50% 0 0);
}
.ba-label {
	position: absolute;
	bottom: 20px;
	font-family: var(--font-heading);
	font-size: 13px;
	font-weight: 600;
	letter-spacing: 0.18em;
	padding: 6px 16px;
	pointer-events: none;
}
.ba-label--after {
	right: 20px;
	background: rgba(22, 54, 85, 0.85);
	color: #fff;
}
.ba-label--before {
	left: 20px;
	background: rgba(232, 92, 26, 0.9);
	color: #fff;
}
.ba-handle {
	position: absolute;
	top: 0;
	bottom: 0;
	left: 50%;
	transform: translateX(-50%);
	display: flex;
	flex-direction: column;
	align-items: center;
	pointer-events: none;
	z-index: 10;
}
.ba-handle__line {
	flex: 1;
	width: 2px;
	background: rgba(255, 255, 255, 0.75);
}
.ba-handle__btn {
	width: 44px;
	height: 44px;
	background: var(--white);
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	box-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
	flex-shrink: 0;
	color: var(--navy);
}
.ba-legend {
	display: flex;
	justify-content: center;
	gap: 32px;
	margin-top: 20px;
}
.ba-legend__item {
	display: flex;
	align-items: center;
	gap: 8px;
	font-size: 0.82rem;
	color: rgba(255, 255, 255, 0.65);
}
.ba-legend__dot {
	width: 10px;
	height: 10px;
	border-radius: 50%;
	flex-shrink: 0;
}
.ba-legend__dot--before {
	background: var(--accent);
}
.ba-legend__dot--after {
	background: var(--blue-light);
}
.ba-hint {
	text-align: center;
	font-size: 0.78rem;
	color: rgba(255, 255, 255, 0.4);
	margin-top: 10px;
	letter-spacing: 0.06em;
}

/* 画面幅が768px以下のときだけ適用 */
@media screen and (max-width: 768px) {
	.hero-content {
		margin: auto;
		padding: 0 20px;
	}
}