/* ── 产品详情页 ── */
html:has(.site-page-product-detail) {
	scroll-behavior: smooth;
}

.site-page-product-detail {
	--text-muted: var(--gray);
	--text-main: var(--gray-dark);
}

.site-page-product-detail a {
	color: inherit;
	text-decoration: none;
}

.site-page-product-detail a.btn-primary {
	color: #fff;
}

.site-page-product-detail a.btn-primary:hover,
.site-page-product-detail a.btn-primary:focus-visible {
	color: #fff;
}

.site-page-product-detail .kicker {
	font-size: 0.8rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 2px;
	color: var(--primary);
	margin-bottom: 10px;
}

.site-page-product-detail .section-header {
	margin-bottom: 48px;
	text-align: center;
}

.site-page-product-detail .section-title {
	font-size: 2.4rem;
	font-weight: 700;
	margin: 0 0 12px;
	letter-spacing: -0.5px;
	color: var(--text-main);
}

.site-page-product-detail .section-subtitle {
	color: var(--text-muted);
	font-size: 1.05rem;
	max-width: 650px;
	margin: 0 auto;
	line-height: 1.65;
}

.site-page-product-detail .pd-section {
	padding: 80px 5%;
	max-width: 1440px;
	margin: 0 auto;
}

.site-page-product-detail .btn-outline {
	display: inline-block;
	background: transparent;
	color: var(--primary);
	padding: 15px 36px;
	border-radius: 8px;
	font-weight: 600;
	font-size: 1rem;
	transition: all 0.3s;
	border: 2px solid rgba(0, 159, 232, 0.5);
}

.site-page-product-detail .btn-outline:hover,
.site-page-product-detail .btn-outline:focus-visible {
	background: var(--primary);
	color: #fff;
	border-color: var(--primary);
	transform: translateY(-2px);
}

/* Hero */
.site-page-product-detail .product-hero {
	padding: 70px 5%;
	background: linear-gradient(180deg, #ffffff 0%, var(--primary-light) 100%);
	border-bottom: 1px solid var(--border);
}

.site-page-product-detail .product-hero-inner {
	max-width: 1440px;
	margin: 0 auto;
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 60px;
	align-items: center;
}

.site-page-product-detail .hero-img-wrap {
	position: relative;
}

.site-page-product-detail .hero-img-wrap .main-img {
	display: block;
	width: 100%;
	height: auto;
	object-fit: contain;
	border-radius: 20px;
	box-shadow: var(--shadow-lg);
	background: #f0f2f5;
}

.site-page-product-detail .float-card {
	position: absolute;
	bottom: 22px;
	left: -22px;
	background: #ffffff;
	border: 1px solid var(--border);
	border-radius: 14px;
	box-shadow: var(--shadow-md);
	padding: 14px 22px;
	display: flex;
	align-items: center;
	gap: 14px;
	max-width: calc(100% - 20px);
}

.site-page-product-detail .float-card .fc-num {
	font-size: 1.6rem;
	font-weight: 800;
	color: var(--primary);
	line-height: 1;
	white-space: nowrap;
}

.site-page-product-detail .float-card .fc-label {
	font-size: 0.8rem;
	color: var(--text-muted);
	line-height: 1.35;
}

.site-page-product-detail .hero-copy .breadcrumb-nav {
	display: flex;
	align-items: center;
	justify-content: flex-start;
	flex-wrap: wrap;
	margin: 0 0 16px;
	font-size: 0.82rem;
	font-weight: 600;
	letter-spacing: 1px;
	text-transform: uppercase;
}

.site-page-product-detail .hero-copy .breadcrumb-nav a {
	color: var(--text-muted);
	text-decoration: none;
	transition: color 0.2s;
}

.site-page-product-detail .hero-copy .breadcrumb-nav a:hover,
.site-page-product-detail .hero-copy .breadcrumb-nav a:focus-visible {
	color: var(--primary);
}

.site-page-product-detail .hero-copy .breadcrumb-nav .sep {
	margin: 0 8px;
	opacity: 0.5;
	color: var(--text-muted);
}

.site-page-product-detail .hero-copy .breadcrumb-nav .current {
	color: var(--text-main);
	max-width: 100%;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
}

.site-page-product-detail .hero-copy h1 {
	font-size: 2.6rem;
	font-weight: 800;
	letter-spacing: -0.5px;
	line-height: 1.18;
	margin: 0 0 16px;
	color: var(--text-main);
}

.site-page-product-detail .hero-desc {
	color: var(--text-muted);
	font-size: 1.02rem;
	line-height: 1.75;
	margin-bottom: 22px;
}

.site-page-product-detail .hero-desc p {
	margin: 0 0 12px;
}

.site-page-product-detail .hero-desc p:last-child {
	margin-bottom: 0;
}

.site-page-product-detail .hero-points {
	list-style: none;
	margin: 0 0 26px;
	padding: 0;
	display: flex;
	flex-direction: column;
	gap: 10px;
}

.site-page-product-detail .hero-points li {
	display: flex;
	align-items: flex-start;
	gap: 10px;
	font-weight: 500;
	font-size: 0.95rem;
	color: var(--text-main);
}

.site-page-product-detail .hero-points li::before {
	content: '✓';
	color: var(--primary);
	font-weight: 700;
	flex-shrink: 0;
}

.site-page-product-detail .hero-actions {
	display: flex;
	gap: 14px;
	flex-wrap: wrap;
	margin-bottom: 26px;
}

.site-page-product-detail .hero-tags {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
}

.site-page-product-detail .hero-tags span {
	background: #ffffff;
	border: 1px solid rgba(0, 159, 232, 0.45);
	color: var(--primary);
	padding: 6px 15px;
	border-radius: 20px;
	font-size: 0.82rem;
	font-weight: 600;
}

/* Gallery */
.site-page-product-detail .gallery-grid {
	display: grid;
	grid-template-columns: 1.15fr 1fr;
	gap: 16px;
}

.site-page-product-detail .gallery-grid--solo {
	grid-template-columns: 1fr;
}

.site-page-product-detail .gallery-main,
.site-page-product-detail .g-item {
	position: relative;
	border-radius: 14px;
	overflow: hidden;
	box-shadow: var(--shadow-sm);
	background: #f0f2f5;
}

.site-page-product-detail .gallery-main img,
.site-page-product-detail .g-item img {
	display: block;
	width: 100%;
	height: auto;
	object-fit: contain;
	transition: transform 0.5s ease;
}

.site-page-product-detail .gallery-main:hover img,
.site-page-product-detail .g-item:hover img {
	transform: scale(1.04);
}

.site-page-product-detail .gallery-side {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 16px;
	align-content: start;
}

.site-page-product-detail .g-chip {
	position: absolute;
	bottom: 10px;
	left: 10px;
	z-index: 2;
	background: rgba(255, 255, 255, 0.92);
	color: var(--text-main);
	font-size: 0.75rem;
	font-weight: 600;
	padding: 4px 12px;
	border-radius: 20px;
	max-width: calc(100% - 20px);
}

/* Overview */
.site-page-product-detail .overview-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 60px;
	align-items: center;
}

.site-page-product-detail .overview-text h2 {
	font-size: 2.2rem;
	letter-spacing: -0.5px;
	margin: 0 0 14px;
	color: var(--text-main);
}

.site-page-product-detail .overview-desc {
	color: var(--text-muted);
	line-height: 1.75;
}

.site-page-product-detail .overview-desc p {
	margin: 0 0 16px;
}

.site-page-product-detail .overview-desc p:last-child {
	margin-bottom: 0;
}

.site-page-product-detail .spec-card {
	background: #ffffff;
	border: 1px solid var(--border);
	border-radius: 16px;
	box-shadow: var(--shadow-sm);
	overflow: hidden;
}

.site-page-product-detail .spec-head {
	padding: 18px 24px;
	background: var(--primary-light);
	font-weight: 700;
	font-size: 1.05rem;
	color: var(--text-main);
	border-bottom: 1px solid var(--border);
	display: flex;
	align-items: center;
	gap: 10px;
}

.site-page-product-detail .spec-head::before {
	content: '';
	width: 8px;
	height: 8px;
	border-radius: 50%;
	background: var(--primary);
	flex-shrink: 0;
}

.site-page-product-detail .spec-row {
	display: grid;
	grid-template-columns: 150px 1fr;
	padding: 15px 24px;
	border-bottom: 1px solid var(--border);
	transition: background 0.25s;
}

.site-page-product-detail .spec-row:last-child {
	border-bottom: none;
}

.site-page-product-detail .spec-row:hover {
	background: var(--primary-light);
}

.site-page-product-detail .spec-key {
	color: var(--text-muted);
	font-weight: 600;
	font-size: 0.92rem;
}

.site-page-product-detail .spec-val {
	font-weight: 600;
	font-size: 0.95rem;
	color: var(--text-main);
}

/* Customize */
.site-page-product-detail .customize-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 24px;
}

.site-page-product-detail .cus-card {
	background: #ffffff;
	border: 1px solid var(--border);
	border-radius: 16px;
	padding: 28px;
	box-shadow: var(--shadow-sm);
	transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.35s, border-color 0.35s;
}

.site-page-product-detail .cus-card:hover {
	transform: translateY(-6px);
	box-shadow: var(--shadow-md);
	border-color: rgba(0, 159, 232, 0.35);
}

.site-page-product-detail .cus-icon {
	width: 50px;
	height: 50px;
	border-radius: 12px;
	background: var(--primary-light);
	display: flex;
	align-items: center;
	justify-content: center;
	margin-bottom: 16px;
	overflow: hidden;
}

.site-page-product-detail .cus-icon img {
	display: block;
	width: 50px;
	height: 50px;
	object-fit: contain;
}

.site-page-product-detail .cus-card h3 {
	font-size: 1.15rem;
	margin: 0 0 12px;
	color: var(--text-main);
}

.site-page-product-detail .cus-card ul {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-direction: column;
	gap: 8px;
}

.site-page-product-detail .cus-card li {
	color: var(--text-muted);
	font-size: 0.9rem;
	display: flex;
	align-items: center;
	gap: 8px;
}

.site-page-product-detail .cus-card li::before {
	content: '✓';
	color: var(--primary);
	font-weight: 700;
	flex-shrink: 0;
}

/* Process */
.site-page-product-detail #product-process {
	scroll-margin-top: 100px;
}

.site-page-product-detail .process-flow {
	display: flex;
	align-items: stretch;
	justify-content: center;
	gap: 8px;
	flex-wrap: wrap;
}

.site-page-product-detail .process-step {
	background: #ffffff;
	border: 1px solid var(--border);
	border-radius: 16px;
	padding: 28px 20px 32px;
	text-align: center;
	flex: 1 1 150px;
	min-width: 130px;
	max-width: 200px;
	box-shadow: var(--shadow-sm);
	transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.site-page-product-detail .process-step:hover {
	transform: translateY(-6px);
	box-shadow: var(--shadow-md);
	border-color: var(--primary);
}

.site-page-product-detail .step-num {
	width: 44px;
	height: 44px;
	background: #eef8fe;
	color: var(--primary);
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	font-weight: 700;
	margin: 0 auto 16px;
	transition: all 0.3s;
	font-size: 1.1rem;
}

.site-page-product-detail .process-step:hover .step-num {
	background: var(--primary);
	color: #fff;
	transform: scale(1.1);
}

.site-page-product-detail .process-step h3 {
	font-size: 1rem;
	margin: 0 0 6px;
	color: var(--text-main);
}

.site-page-product-detail .process-step p {
	color: var(--text-muted);
	font-size: 0.82rem;
	margin: 0;
	line-height: 1.5;
}

.site-page-product-detail .process-arrow {
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 28px;
	color: var(--primary);
	font-weight: 300;
	flex-shrink: 0;
	padding: 0 4px;
	opacity: 0.7;
}

/* Related */
.site-page-product-detail .related-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 28px;
}

.site-page-product-detail .related-card {
	background: #ffffff;
	border: 1px solid var(--border);
	border-radius: 16px;
	overflow: hidden;
	box-shadow: var(--shadow-sm);
	transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s, border-color 0.4s;
	display: flex;
	flex-direction: column;
}

.site-page-product-detail .related-card:hover {
	transform: translateY(-8px);
	box-shadow: var(--shadow-md);
	border-color: rgba(0, 159, 232, 0.35);
}

.site-page-product-detail .related-card .r-img {
	overflow: hidden;
	background: #f0f2f5;
}

.site-page-product-detail .related-card .r-img img {
	display: block;
	width: 100%;
	height: auto;
	object-fit: contain;
	transition: transform 0.6s ease;
}

.site-page-product-detail .related-card:hover .r-img img {
	transform: scale(1.04);
}

.site-page-product-detail .related-info {
	padding: 20px 24px 24px;
	display: flex;
	flex-direction: column;
	flex: 1;
}

.site-page-product-detail .related-info h3 {
	font-size: 1.15rem;
	margin: 0 0 6px;
	color: var(--text-main);
}

.site-page-product-detail .related-info h3 a:hover {
	color: var(--primary);
}

.site-page-product-detail .related-info p {
	color: var(--text-muted);
	font-size: 0.9rem;
	margin: 0 0 14px;
	flex: 1;
	line-height: 1.55;
}

.site-page-product-detail .related-link {
	color: var(--primary);
	font-weight: 600;
	font-size: 0.92rem;
	display: inline-flex;
	align-items: center;
	gap: 6px;
	transition: gap 0.3s;
	margin-top: auto;
}

.site-page-product-detail .related-link::after {
	content: '→';
	font-size: 1.1rem;
}

.site-page-product-detail .related-card:hover .related-link {
	gap: 12px;
}

/* FAQ */
.site-page-product-detail .faq-list {
	max-width: 860px;
	margin: 0 auto;
	display: flex;
	flex-direction: column;
	gap: 14px;
}

.site-page-product-detail .faq-item {
	background: #ffffff;
	border: 1px solid var(--border);
	border-radius: 14px;
	box-shadow: var(--shadow-sm);
	overflow: hidden;
}

.site-page-product-detail .faq-item summary {
	list-style: none;
	cursor: pointer;
	padding: 20px 26px;
	font-weight: 600;
	font-size: 1.02rem;
	display: flex;
	justify-content: space-between;
	align-items: center;
	gap: 16px;
	transition: color 0.3s;
	color: var(--text-main);
}

.site-page-product-detail .faq-item summary::-webkit-details-marker {
	display: none;
}

.site-page-product-detail .faq-item summary:hover {
	color: var(--primary);
}

.site-page-product-detail .faq-icon {
	width: 28px;
	height: 28px;
	border-radius: 50%;
	background: var(--primary-light);
	color: var(--primary);
	display: flex;
	align-items: center;
	justify-content: center;
	font-weight: 700;
	font-size: 1.1rem;
	transition: all 0.3s;
	flex-shrink: 0;
}

.site-page-product-detail .faq-item[open] .faq-icon {
	background: var(--primary);
	color: #fff;
	transform: rotate(45deg);
}

.site-page-product-detail .faq-answer {
	padding: 0 26px 22px;
	color: var(--text-muted);
	line-height: 1.7;
}

.site-page-product-detail .faq-answer p {
	margin: 0 0 10px;
}

.site-page-product-detail .faq-answer p:last-child {
	margin-bottom: 0;
}

@media (max-width: 1100px) {
	.site-page-product-detail .customize-grid {
		grid-template-columns: repeat(2, 1fr);
	}

	.site-page-product-detail .related-grid {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media (max-width: 900px) {
	.site-page-product-detail .product-hero-inner,
	.site-page-product-detail .overview-grid,
	.site-page-product-detail .gallery-grid {
		grid-template-columns: 1fr;
		gap: 32px;
	}

	.site-page-product-detail .float-card {
		left: 12px;
		bottom: 12px;
	}

	.site-page-product-detail .hero-copy h1 {
		font-size: 2rem;
	}

	.site-page-product-detail .section-title {
		font-size: 1.8rem;
	}

	.site-page-product-detail .overview-text h2 {
		font-size: 1.7rem;
	}

	.site-page-product-detail .process-arrow {
		display: none;
	}
}

@media (max-width: 640px) {
	.site-page-product-detail .product-hero,
	.site-page-product-detail .pd-section {
		padding: 50px 4%;
	}

	.site-page-product-detail .hero-copy h1 {
		font-size: 1.7rem;
	}

	.site-page-product-detail .hero-actions {
		flex-direction: column;
	}

	.site-page-product-detail .hero-actions .btn-primary,
	.site-page-product-detail .hero-actions .btn-outline {
		width: 100%;
		text-align: center;
	}

	.site-page-product-detail .gallery-side {
		grid-template-columns: 1fr 1fr;
	}

	.site-page-product-detail .spec-row {
		grid-template-columns: 1fr;
		gap: 4px;
	}

	.site-page-product-detail .customize-grid,
	.site-page-product-detail .related-grid {
		grid-template-columns: 1fr;
	}

	.site-page-product-detail .process-step {
		max-width: none;
		flex: 1 1 100%;
	}
}