@charset "UTF-8";

/* ==========================================================================
   加工事例詳細
   ========================================================================== */


/* ---------- ヘッダー ---------- */

.product-detail__header {
	margin-bottom: 40px;
}

.product-detail__tag {
	display: inline-block;
	padding: 4px 16px;
	background-color: var(--color-primary);
	color: var(--color-text-on-dark);
	font-size: 0.75rem;
	font-weight: 500;
	letter-spacing: 0.05em;
	border-radius: var(--radius);
	margin-bottom: 12px;
}

.product-detail__title {
	font-size: 1.75rem;
	font-weight: 700;
	line-height: 1.5;
}


/* ---------- 画像ギャラリー ---------- */

.product-gallery {
	margin-bottom: 48px;
}

.product-gallery__main {
	position: relative;
	overflow: hidden;
	border-radius: var(--radius-lg);
	margin-bottom: 12px;
	cursor: pointer;
}

.product-gallery__main img {
	width: 100%;
	height: auto;
	display: block;
	aspect-ratio: 4 / 3;
	object-fit: cover;
}

.product-gallery__thumbs {
	display: flex;
	gap: 8px;
	overflow-x: auto;
	-webkit-overflow-scrolling: touch;
}

.product-gallery__thumb {
	flex-shrink: 0;
	width: 80px;
	height: 80px;
	border: 2px solid transparent;
	border-radius: var(--radius);
	overflow: hidden;
	cursor: pointer;
	transition: border-color var(--transition), opacity var(--transition);
	padding: 0;
	background: none;
}

.product-gallery__thumb img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}

.product-gallery__thumb:hover {
	opacity: 0.8;
}

.product-gallery__thumb.is-active {
	border-color: var(--color-primary);
}


/* ---------- ライトボックス ---------- */

.gallery-lightbox {
	position: fixed;
	inset: 0;
	z-index: 200;
	display: flex;
	align-items: center;
	justify-content: center;
	background-color: rgba(0, 0, 0, 0.85);
	padding: 40px;
	cursor: pointer;
}

.gallery-lightbox__image {
	max-width: 100%;
	max-height: 90vh;
	object-fit: contain;
	border-radius: var(--radius-lg);
}

.gallery-lightbox__close {
	position: absolute;
	top: 20px;
	right: 20px;
	width: 48px;
	height: 48px;
	display: flex;
	align-items: center;
	justify-content: center;
	color: var(--color-text-on-dark);
	font-size: 2rem;
	line-height: 1;
	cursor: pointer;
	border: none;
	background: none;
	transition: opacity var(--transition);
}

.gallery-lightbox__close:hover {
	opacity: 0.7;
}


/* ---------- セクション共通 ---------- */

.product-detail__section-title {
	font-size: 1.25rem;
	font-weight: 700;
	padding-bottom: 12px;
	margin-bottom: 20px;
	border-bottom: 2px solid var(--color-primary);
}

.product-detail__spec {
	margin-bottom: 48px;
}

.product-detail__description {
	margin-bottom: 48px;
}

.product-detail__text {
	font-size: 0.9375rem;
	line-height: 2;
	color: var(--color-text);
}

.product-detail__process {
	margin-bottom: 48px;
}


/* ---------- 動画 ---------- */

.product-detail__video {
	margin-bottom: 48px;
}

.product-detail__video-wrap {
	position: relative;
	width: 100%;
	padding-bottom: 56.25%;
	height: 0;
	overflow: hidden;
	border-radius: var(--radius-lg);
}

.product-detail__video-wrap iframe {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
}


/* ---------- 関連技術リンク ---------- */

.product-detail__tech-link {
	margin-bottom: 48px;
}

.product-detail__tech-link-inner {
	display: flex;
	align-items: center;
	gap: 16px;
	padding: 24px 32px;
	background-color: var(--color-bg-alt);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-lg);
	transition: background-color var(--transition), border-color var(--transition);
}

.product-detail__tech-link-inner:hover {
	background-color: var(--color-primary-light);
	border-color: var(--color-primary);
	color: var(--color-text);
}

.product-detail__tech-link-label {
	font-size: 0.8125rem;
	color: var(--color-text-light);
	white-space: nowrap;
}

.product-detail__tech-link-title {
	font-size: 1rem;
	font-weight: 700;
	flex: 1;
}


/* ==========================================================================
   レスポンシブ
   ========================================================================== */

@media screen and (max-width: 768px) {

	.product-detail__title {
		font-size: 1.375rem;
	}

	.product-gallery {
		margin-bottom: 32px;
	}

	.product-gallery__thumb {
		width: 64px;
		height: 64px;
	}

	.product-detail__section-title {
		font-size: 1.125rem;
	}

	.product-detail__spec,
	.product-detail__description,
	.product-detail__process,
	.product-detail__video,
	.product-detail__tech-link {
		margin-bottom: 36px;
	}

	.product-detail__tech-link-inner {
		flex-direction: column;
		align-items: flex-start;
		gap: 8px;
		padding: 20px;
	}

	.gallery-lightbox {
		padding: 16px;
	}
}


/* ==========================================================================
   本文タイポグラフィ（加工内容エディタ本文）
   ========================================================================== */

.product-detail__text > * + * {
	margin-top: 1em;
}

.product-detail__text h2 {
	font-size: 1.125rem;
	font-weight: 700;
	margin-top: 48px;
	padding-bottom: 10px;
	border-bottom: 2px solid var(--color-primary);
}

.product-detail__text h3 {
	font-size: 1.0625rem;
	font-weight: 700;
	margin-top: 40px;
	padding-left: 12px;
	border-left: 3px solid var(--color-accent);
}

.product-detail__text h2:first-child,
.product-detail__text h3:first-child {
	margin-top: 0;
}

.product-detail__text h4 {
	font-size: 1rem;
	font-weight: 700;
	margin-top: 32px;
}

.product-detail__text ul,
.product-detail__text ol {
	display: flex;
	flex-direction: column;
	gap: 8px;
}

.product-detail__text ul li {
	position: relative;
	padding-left: 18px;
}

.product-detail__text ul li::before {
	content: '';
	position: absolute;
	left: 0;
	top: 0.85em;
	width: 8px;
	height: 2px;
	background-color: var(--color-accent);
}

.product-detail__text ol {
	counter-reset: product-ol;
}

.product-detail__text ol li {
	position: relative;
	padding-left: 28px;
	counter-increment: product-ol;
}

.product-detail__text ol li::before {
	content: counter(product-ol, decimal-leading-zero);
	position: absolute;
	left: 0;
	top: 0;
	font-family: var(--font-number);
	font-weight: 700;
	color: var(--color-accent);
}

.product-detail__text a {
	color: var(--color-primary);
	text-decoration: underline;
	text-underline-offset: 3px;
	transition: color var(--transition);
}

.product-detail__text a:hover {
	color: var(--color-accent);
}

.product-detail__text blockquote {
	padding: 16px 20px;
	background-color: var(--color-bg-alt);
	border-left: 3px solid var(--color-steel);
	color: var(--color-text-light);
}

.product-detail__text img {
	max-width: 100%;
	height: auto;
}


/* ==========================================================================
   よくあるご質問（アコーディオン）
   ========================================================================== */

.product-detail__faq {
	margin-bottom: 48px;
}

.product-detail__faq .faq-section__list {
	display: flex;
	flex-direction: column;
	gap: 8px;
}

.product-detail__faq .faq-item {
	border: 1px solid var(--color-border);
	border-radius: var(--radius-lg);
	overflow: hidden;
}

.product-detail__faq .faq-item__question {
	display: flex;
	align-items: center;
	gap: 16px;
	width: 100%;
	padding: 20px 24px;
	text-align: left;
	font-size: 0.9375rem;
	font-weight: 700;
	line-height: 1.6;
	color: var(--color-text);
	background-color: var(--color-bg);
	cursor: pointer;
	transition: background-color var(--transition);
	border: none;
}

.product-detail__faq .faq-item__question:hover,
.product-detail__faq .faq-item__question[aria-expanded="true"] {
	background-color: var(--color-bg-alt);
}

.product-detail__faq .faq-item__icon {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 32px;
	height: 32px;
	flex-shrink: 0;
	font-family: var(--font-english);
	font-size: 1rem;
	font-weight: 700;
	color: var(--color-text-on-dark);
	background-color: var(--color-primary);
	border-radius: var(--radius);
}

.product-detail__faq .faq-item__icon--answer {
	background-color: var(--color-accent);
}

.product-detail__faq .faq-item__text {
	flex: 1;
}

.product-detail__faq .faq-item__toggle {
	flex-shrink: 0;
	width: 20px;
	height: 20px;
	position: relative;
}

.product-detail__faq .faq-item__toggle::before,
.product-detail__faq .faq-item__toggle::after {
	content: '';
	position: absolute;
	top: 50%;
	left: 50%;
	background-color: var(--color-text-light);
	transition: transform var(--transition);
}

.product-detail__faq .faq-item__toggle::before {
	width: 14px;
	height: 2px;
	transform: translate(-50%, -50%);
}

.product-detail__faq .faq-item__toggle::after {
	width: 2px;
	height: 14px;
	transform: translate(-50%, -50%);
}

.product-detail__faq .faq-item__question[aria-expanded="true"] .faq-item__toggle::after {
	transform: translate(-50%, -50%) rotate(90deg);
}

/* 開閉アニメーション: grid-template-rows 0fr↔1fr（実高さに比例したなめらかな開閉） */
.product-detail__faq .faq-item__answer {
	display: grid;
	grid-template-rows: 0fr;
	visibility: hidden;
	transition: grid-template-rows 0.3s ease, visibility 0.3s ease;
}

.product-detail__faq .faq-item.is-open .faq-item__answer {
	grid-template-rows: 1fr;
	visibility: visible;
}

.product-detail__faq .faq-item__answer-inner {
	overflow: hidden;
	min-height: 0;
}

.product-detail__faq .faq-item__answer-text {
	display: flex;
	gap: 16px;
	font-size: 0.9375rem;
	line-height: 1.8;
	color: var(--color-text);
	margin: 0 24px;
	padding: 16px 0 24px;
	border-top: 1px solid var(--color-border);
}

.product-detail__faq .faq-item__answer-text p {
	flex: 1;
	margin: 0;
}

@media (prefers-reduced-motion: reduce) {
	.product-detail__faq .faq-item__answer {
		transition: none;
	}
}


/* ==========================================================================
   本文・FAQ レスポンシブ
   ========================================================================== */

@media screen and (max-width: 768px) {

	.product-detail__text h2 {
		font-size: 1.0625rem;
		margin-top: 40px;
	}

	.product-detail__text h3 {
		font-size: 1rem;
		margin-top: 32px;
	}

	.product-detail__faq {
		margin-bottom: 36px;
	}

	.product-detail__faq .faq-item__question {
		padding: 16px;
		gap: 12px;
		font-size: 0.875rem;
	}

	.product-detail__faq .faq-item__icon {
		width: 28px;
		height: 28px;
		font-size: 0.875rem;
	}

	.product-detail__faq .faq-item__answer-text {
		flex-direction: column;
		gap: 8px;
		font-size: 0.875rem;
		margin: 0 16px;
		padding: 14px 0 18px;
	}
}