/* ── 关于我们 ── */
html:has(.site-page-about) {
	scroll-behavior: smooth;
}

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

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

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

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

/* Banner extras（关于我们） */
#page-banner .page-banner__actions {
	display: flex;
	justify-content: center;
	gap: 16px;
	flex-wrap: wrap;
	margin-top: 28px;
	margin-bottom: 28px;
}

#page-banner .page-banner__btn {
	display: inline-block;
	background-color: var(--primary);
	color: #ffffff;
	padding: 15px 38px;
	border-radius: 30px;
	font-weight: 600;
	font-size: 1rem;
	transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
	box-shadow: 0 4px 20px rgba(0, 159, 232, 0.4);
	border: 2px solid transparent;
	text-decoration: none;
}

#page-banner .page-banner__btn:hover,
#page-banner .page-banner__btn:focus-visible {
	background-color: #ffffff;
	color: var(--primary);
	transform: translateY(-3px);
}

#page-banner .page-banner__btn-outline {
	display: inline-block;
	background: transparent;
	color: inherit;
	padding: 15px 38px;
	border-radius: 30px;
	font-weight: 600;
	font-size: 1rem;
	transition: all 0.3s;
	border: 2px solid rgba(255, 255, 255, 0.65);
	text-decoration: none;
}

#page-banner.page-banner--gradient .page-banner__btn-outline {
	color: var(--primary);
	border-color: rgba(0, 159, 232, 0.5);
}

#page-banner.page-banner--image .page-banner__btn-outline {
	color: #ffffff;
}

#page-banner .page-banner__btn-outline:hover,
#page-banner .page-banner__btn-outline:focus-visible {
	background: #ffffff;
	color: var(--primary);
	border-color: #ffffff;
	transform: translateY(-3px);
}

#page-banner .page-banner__badges {
	display: flex;
	justify-content: center;
	flex-wrap: wrap;
	gap: 12px;
}

#page-banner .page-banner__badges span {
	padding: 7px 18px;
	border-radius: 24px;
	font-size: 0.85rem;
	font-weight: 600;
}

#page-banner.page-banner--image .page-banner__badges span {
	background: rgba(255, 255, 255, 0.1);
	border: 1px solid rgba(255, 255, 255, 0.25);
	backdrop-filter: blur(4px);
	color: #ffffff;
}

#page-banner.page-banner--gradient .page-banner__badges span {
	background: #ffffff;
	border: 1px solid rgba(0, 159, 232, 0.45);
	color: var(--primary);
}

#page-banner.page-banner--image .banner-desc {
	margin-bottom: 0;
}

/* Sections */
.site-page-about .about-section {
	padding: 80px 5%;
	max-width: 1440px;
	margin: 0 auto;
}

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

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

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

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

#about-advantage,
#about-process {
	scroll-margin-top: 100px;
}

/* Who We Are */
.site-page-about .about-grid {
	display: grid;
	grid-template-columns: 1.05fr 0.95fr;
	gap: 60px;
	align-items: center;
}

.site-page-about .about-imgs {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 16px;
}

.site-page-about .about-imgs .img-item {
	position: relative;
	border-radius: 14px;
	overflow: hidden;
	box-shadow: var(--shadow-sm);
	background: #f0f2f5;
}

.site-page-about .about-imgs .img-main {
	grid-column: 1 / -1;
}

.site-page-about .about-imgs .img-item img {
	display: block;
	width: 100%;
	height: auto;
	object-fit: contain;
	transition: transform 0.5s ease;
}

.site-page-about .about-imgs .img-item:hover img {
	transform: scale(1.04);
}

.site-page-about .img-chip {
	position: absolute;
	top: 12px;
	left: 12px;
	z-index: 2;
	background: rgba(255, 255, 255, 0.92);
	color: var(--text-main);
	font-size: 0.75rem;
	font-weight: 600;
	padding: 5px 12px;
	border-radius: 20px;
}

.site-page-about .about-text h2 {
	font-size: 2.2rem;
	line-height: 1.25;
	letter-spacing: -0.5px;
	margin: 0 0 18px;
	color: var(--text-main);
}

.site-page-about .about-editor {
	color: var(--text-muted);
	font-size: 1rem;
	line-height: 1.75;
	margin-bottom: 16px;
}

.site-page-about .about-editor p {
	margin: 0 0 16px;
}

.site-page-about .about-list {
	list-style: none;
	margin: 22px 0 30px;
	padding: 0;
	display: flex;
	flex-direction: column;
	gap: 10px;
}

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

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

/* Advantage cards */
.site-page-about .adv-card {
	display: grid;
	grid-template-columns: 1fr 1fr;
	background: #ffffff;
	border: 1px solid var(--border);
	border-radius: 20px;
	overflow: hidden;
	box-shadow: var(--shadow-sm);
	margin-bottom: 28px;
	transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s, border-color 0.4s;
}

.site-page-about .adv-card:last-child {
	margin-bottom: 0;
}

.site-page-about .adv-card:hover {
	box-shadow: var(--shadow-md);
	border-color: rgba(0, 159, 232, 0.35);
	transform: translateY(-4px);
}

.site-page-about .adv-card .adv-img {
	display: block;
	width: 100%;
	height: auto;
	object-fit: contain;
	background: #f0f2f5;
}

.site-page-about .adv-body {
	padding: 48px 52px;
	display: flex;
	flex-direction: column;
	justify-content: center;
}

.site-page-about .adv-num {
	font-size: 0.95rem;
	font-weight: 800;
	color: var(--primary);
	letter-spacing: 1px;
	margin-bottom: 8px;
}

.site-page-about .adv-body h3 {
	font-size: 1.7rem;
	margin: 0 0 6px;
	letter-spacing: -0.3px;
	color: var(--text-main);
}

.site-page-about .adv-sub {
	font-size: 1.05rem;
	font-weight: 600;
	color: var(--primary);
	margin-bottom: 14px;
}

.site-page-about .adv-text {
	color: var(--text-muted);
	font-size: 0.98rem;
	line-height: 1.75;
	margin: 0;
}

.site-page-about .adv-card.reverse .adv-img {
	order: 2;
}

.site-page-about .adv-card.reverse .adv-body {
	order: 1;
}

/* Capabilities */
.site-page-about .cap-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 24px;
}

.site-page-about .cap-card {
	position: relative;
	border-radius: 16px;
	overflow: hidden;
	box-shadow: var(--shadow-sm);
	background: #0a1828;
}

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

.site-page-about .cap-card:hover img {
	transform: scale(1.04);
}

.site-page-about .cap-card::after {
	content: '';
	position: absolute;
	inset: 0;
	background: linear-gradient(180deg, rgba(10, 24, 40, 0) 30%, rgba(10, 24, 40, 0.88) 100%);
	pointer-events: none;
}

.site-page-about .cap-info {
	position: absolute;
	bottom: 0;
	left: 0;
	right: 0;
	padding: 22px 26px;
	z-index: 2;
	color: #ffffff;
}

.site-page-about .cap-info h3 {
	font-size: 1.25rem;
	margin: 0 0 4px;
}

.site-page-about .cap-info p {
	font-size: 0.88rem;
	opacity: 0.85;
	margin: 0;
}

/* Fabric */
.site-page-about .fabric-band {
	max-width: 100%;
	padding: 90px 5%;
	background: linear-gradient(180deg, #ffffff 0%, var(--primary-light) 100%);
}

.site-page-about .fabric-inner {
	max-width: 1440px;
	margin: 0 auto;
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 70px;
	align-items: center;
}

.site-page-about .fabric-imgs {
	display: grid;
	grid-template-columns: 1.15fr 1fr;
	gap: 16px;
}

.site-page-about .fabric-imgs .img-item {
	position: relative;
	border-radius: 14px;
	overflow: hidden;
	box-shadow: var(--shadow-sm);
	background: #f0f2f5;
}

.site-page-about .fabric-imgs .f-img-main {
	grid-row: 1 / span 2;
}

.site-page-about .fabric-imgs .img-item img {
	display: block;
	width: 100%;
	height: auto;
	object-fit: contain;
	transition: transform 0.5s ease;
}

.site-page-about .fabric-imgs .img-item:hover img {
	transform: scale(1.04);
}

.site-page-about .fabric-text h2 {
	font-size: 2.1rem;
	letter-spacing: -0.5px;
	line-height: 1.25;
	margin: 0 0 14px;
	color: var(--text-main);
}

.site-page-about .fabric-desc {
	color: var(--text-muted);
	line-height: 1.75;
	margin-bottom: 22px;
}

.site-page-about .fabric-desc p {
	margin: 0 0 12px;
}

.site-page-about .check-list {
	list-style: none;
	margin: 0 0 26px;
	padding: 0;
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 12px 24px;
}

.site-page-about .check-list li {
	display: flex;
	align-items: center;
	gap: 10px;
	font-weight: 500;
	font-size: 0.95rem;
	color: var(--text-main);
}

.site-page-about .check-list li::before {
	content: '✓';
	color: var(--primary);
	font-weight: 700;
	flex-shrink: 0;
}

.site-page-about .svc-tags {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
}

.site-page-about .svc-tags span {
	background: #ffffff;
	border: 1px solid rgba(0, 159, 232, 0.45);
	color: var(--primary);
	padding: 6px 15px;
	border-radius: 20px;
	font-size: 0.85rem;
	font-weight: 600;
}

/* Timeline */
.site-page-about .timeline {
	position: relative;
	max-width: 1020px;
	margin: 0 auto;
}

.site-page-about .timeline::before {
	content: '';
	position: absolute;
	left: 50%;
	top: 0;
	bottom: 0;
	width: 2px;
	transform: translateX(-50%);
	background: linear-gradient(180deg, var(--primary) 0%, rgba(0, 159, 232, 0.25) 100%);
}

.site-page-about .tl-item {
	position: relative;
	width: 50%;
	padding: 0 52px 44px 0;
}

.site-page-about .tl-item:nth-child(even) {
	left: 50%;
	padding: 0 0 44px 52px;
}

.site-page-about .tl-item:last-child {
	padding-bottom: 0;
}

.site-page-about .tl-dot {
	position: absolute;
	top: 6px;
	right: -9px;
	width: 18px;
	height: 18px;
	border-radius: 50%;
	background: var(--primary);
	border: 4px solid #ffffff;
	box-shadow: 0 0 0 3px rgba(0, 159, 232, 0.35);
	z-index: 2;
}

.site-page-about .tl-item:nth-child(even) .tl-dot {
	right: auto;
	left: -9px;
}

.site-page-about .tl-card {
	background: #ffffff;
	border: 1px solid var(--border);
	border-radius: 16px;
	padding: 24px 28px;
	box-shadow: var(--shadow-sm);
	transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.site-page-about .tl-card:hover {
	box-shadow: var(--shadow-md);
	border-color: var(--primary);
	transform: translateY(-4px);
}

.site-page-about .tl-num {
	font-size: 0.9rem;
	font-weight: 800;
	color: var(--primary);
	letter-spacing: 1px;
	margin-bottom: 6px;
}

.site-page-about .tl-card h3 {
	font-size: 1.2rem;
	margin: 0 0 6px;
	color: var(--text-main);
}

.site-page-about .tl-card p {
	color: var(--text-muted);
	font-size: 0.9rem;
	line-height: 1.65;
	margin: 0;
}

/* Stats */
.site-page-about .stats-band {
	max-width: 100%;
	padding: 90px 5%;
	background: var(--footer-bg);
}

.site-page-about .stats-inner {
	max-width: 1440px;
	margin: 0 auto;
}

.site-page-about .stats-head {
	text-align: center;
	color: #ffffff;
	margin-bottom: 52px;
}

.site-page-about .stats-head .kicker {
	color: var(--primary);
}

.site-page-about .stats-head h2 {
	font-size: 2.4rem;
	letter-spacing: -0.5px;
	margin: 0 0 12px;
}

.site-page-about .stats-head p {
	color: var(--footer-muted);
	max-width: 620px;
	margin: 0 auto;
	font-size: 1.02rem;
}

.site-page-about .stats-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 28px;
}

.site-page-about .stat-card {
	background: rgba(255, 255, 255, 0.05);
	border: 1px solid rgba(255, 255, 255, 0.09);
	border-radius: 16px;
	padding: 36px 24px;
	text-align: center;
	transition: transform 0.35s, background 0.35s, border-color 0.35s;
}

.site-page-about .stat-card:hover {
	background: rgba(0, 159, 232, 0.12);
	border-color: rgba(0, 159, 232, 0.45);
	transform: translateY(-6px);
}

.site-page-about .stat-num {
	font-size: 3rem;
	font-weight: 800;
	color: #ffffff;
	letter-spacing: -1px;
	line-height: 1.1;
	margin-bottom: 8px;
}

.site-page-about .stat-num .suffix {
	color: var(--primary);
}

.site-page-about .stat-label {
	color: var(--footer-muted);
	font-size: 0.92rem;
}

.site-page-about .stat-card:hover .stat-label {
	color: #ffffff;
}

/* Quality */
.site-page-about .quality-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 60px;
	align-items: center;
}

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

.site-page-about .quality-text p {
	color: var(--text-muted);
	line-height: 1.75;
	margin: 0 0 22px;
}

.site-page-about .q-list {
	list-style: none;
	margin: 0;
	padding: 0;
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 12px 24px;
}

.site-page-about .q-list li {
	display: flex;
	align-items: center;
	gap: 10px;
	font-weight: 500;
	font-size: 0.95rem;
	color: var(--text-main);
}

.site-page-about .q-list li::before {
	content: '✓';
	color: var(--primary);
	font-weight: 700;
	flex-shrink: 0;
}

.site-page-about .q-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 16px;
}

.site-page-about .q-grid .img-item {
	border-radius: 14px;
	overflow: hidden;
	box-shadow: var(--shadow-sm);
	background: #f0f2f5;
}

.site-page-about .q-grid .img-item img {
	display: block;
	width: 100%;
	height: auto;
	object-fit: contain;
	transition: transform 0.5s ease;
}

.site-page-about .q-grid .img-item:hover img {
	transform: scale(1.04);
}

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

	.site-page-about .stats-grid {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media (max-width: 900px) {
	.site-page-about .about-grid,
	.site-page-about .adv-card,
	.site-page-about .fabric-inner,
	.site-page-about .quality-grid {
		grid-template-columns: 1fr;
		gap: 32px;
	}

	.site-page-about .adv-card.reverse .adv-img,
	.site-page-about .adv-card.reverse .adv-body {
		order: initial;
	}

	.site-page-about .adv-body {
		padding: 32px 28px;
	}

	.site-page-about .fabric-imgs .f-img-main {
		grid-row: auto;
		grid-column: 1 / -1;
	}

	.site-page-about .timeline::before {
		left: 9px;
		transform: none;
	}

	.site-page-about .tl-item,
	.site-page-about .tl-item:nth-child(even) {
		width: 100%;
		left: 0;
		padding: 0 0 32px 40px;
	}

	.site-page-about .tl-dot,
	.site-page-about .tl-item:nth-child(even) .tl-dot {
		left: 0;
		right: auto;
	}

	.site-page-about .section-title,
	.site-page-about .about-text h2,
	.site-page-about .stats-head h2,
	.site-page-about .quality-text h2,
	.site-page-about .fabric-text h2 {
		font-size: 1.8rem;
	}
}

@media (max-width: 640px) {
	.site-page-about .about-section,
	.site-page-about .fabric-band,
	.site-page-about .stats-band {
		padding: 50px 4%;
	}

	#page-banner .page-banner__actions {
		flex-direction: column;
		align-items: center;
	}

	#page-banner .page-banner__btn,
	#page-banner .page-banner__btn-outline {
		width: min(280px, 100%);
		text-align: center;
	}

	.site-page-about .cap-grid,
	.site-page-about .stats-grid,
	.site-page-about .check-list,
	.site-page-about .q-list {
		grid-template-columns: 1fr;
	}

	.site-page-about .stat-num {
		font-size: 2.4rem;
	}
}