:root {
	--ink: #1c2230;
	--muted: #6d7480;
	--paper: #f3f4f8;
	--card: #fdfdfe;
	--line: rgba(28, 34, 48, 0.12);
	--brand: #2166c9;
	--brand-dark: #174a94;
	--accent: #7d3ac4;
	--navy: #1a2238;
	--shadow: 0 18px 50px rgba(28, 34, 48, 0.1);
	--shadow-soft: 0 6px 24px rgba(28, 34, 48, 0.05);
	--radius-lg: 26px;
	--radius-md: 18px;
	--radius-sm: 13px;
	--header-h: 84px;
}

* {
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

body {
	margin: 0;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
	background: var(--paper);
	color: var(--ink);
	line-height: 1.65;
	-webkit-font-smoothing: antialiased;
}

::selection {
	background: var(--brand);
	color: #fff;
}

:focus-visible {
	outline: 2px solid var(--brand);
	outline-offset: 3px;
}

img {
	max-width: 100%;
}

.skip-link {
	position: fixed;
	top: 12px;
	left: 12px;
	z-index: 200;
	padding: 10px 18px;
	border-radius: 999px;
	background: var(--navy);
	color: #fff;
	font-size: 13px;
	font-weight: 600;
	text-decoration: none;
	transform: translateY(-72px);
	opacity: 0;
}

.skip-link:focus {
	transform: none;
	opacity: 1;
}

html.js .reveal {
	opacity: 0;
	transform: translateY(26px);
	transition: opacity 0.7s ease, transform 0.7s ease;
}

html.js .reveal.in {
	opacity: 1;
	transform: none;
}

html.js .product-list .reveal:nth-child(3n + 2),
html.js .about-grid .reveal:nth-child(3n + 2) {
	transition-delay: 0.08s;
}

html.js .product-list .reveal:nth-child(3n),
html.js .about-grid .reveal:nth-child(3n) {
	transition-delay: 0.16s;
}

html.js .contact-grid .reveal:nth-child(2) {
	transition-delay: 0.08s;
}

html.js .contact-grid .reveal:nth-child(3) {
	transition-delay: 0.16s;
}

html.js .contact-grid .reveal:nth-child(4) {
	transition-delay: 0.24s;
}

.site-header {
	position: sticky;
	top: 0;
	z-index: 50;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 28px;
	padding: 12px clamp(20px, 5vw, 72px);
	padding-top: calc(12px + env(safe-area-inset-top));
	background: rgba(253, 253, 254, 0.82);
	border-bottom: 1px solid rgba(28, 34, 48, 0.08);
	backdrop-filter: blur(18px);
	-webkit-backdrop-filter: blur(18px);
	transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
	box-shadow: 0 10px 30px rgba(28, 34, 48, 0.08);
}

.brand {
	display: flex;
	align-items: center;
	gap: 12px;
	color: var(--ink);
	text-decoration: none;
	flex-shrink: 0;
}

.brand-logo {
	display: block;
	width: 46px;
	height: 46px;
	border-radius: 15px;
	object-fit: cover;
	box-shadow: 0 6px 16px rgba(28, 34, 48, 0.16);
}

.brand-copy {
	display: grid;
	gap: 2px;
	line-height: 1.15;
	letter-spacing: 0.06em;
}

.brand-copy strong {
	font-size: 15px;
	color: var(--navy);
}

.brand-copy small {
	color: var(--muted);
	font-size: 9px;
	letter-spacing: 0.18em;
}

nav ul {
	display: flex;
	align-items: center;
	gap: clamp(16px, 3vw, 38px);
	list-style: none;
	margin: 0;
	padding: 0;
}

.nav-link {
	position: relative;
	color: var(--muted);
	font-size: 14px;
	font-weight: 600;
	text-decoration: none;
	letter-spacing: 0.03em;
	transition: color 0.2s ease;
}

.nav-link::after {
	content: "";
	position: absolute;
	left: 0;
	right: 0;
	bottom: -7px;
	height: 2px;
	border-radius: 2px;
	background: linear-gradient(90deg, var(--brand), var(--accent));
	transform: scaleX(0);
	transform-origin: left;
	transition: transform 0.25s ease;
}

.nav-link:hover {
	color: var(--brand-dark);
}

.nav-link:hover::after,
.nav-link.active::after {
	transform: scaleX(1);
}

.nav-link.active {
	color: var(--brand-dark);
}

.header-actions {
	display: flex;
	align-items: center;
	gap: 12px;
	flex-shrink: 0;
}

.lang-switch {
	display: flex;
	gap: 6px;
}

.nav-toggle {
	display: none;
	flex-direction: column;
	justify-content: center;
	gap: 5px;
	width: 44px;
	height: 44px;
	padding: 0;
	border: 1px solid var(--line);
	border-radius: 12px;
	background: transparent;
	cursor: pointer;
}

.nav-toggle span {
	display: block;
	width: 20px;
	height: 2px;
	margin: 0 auto;
	border-radius: 2px;
	background: var(--navy);
	transition: transform 0.25s ease, opacity 0.25s ease;
}

.site-header.nav-open .nav-toggle span:nth-child(1) {
	transform: translateY(7px) rotate(45deg);
}

.site-header.nav-open .nav-toggle span:nth-child(2) {
	opacity: 0;
}

.site-header.nav-open .nav-toggle span:nth-child(3) {
	transform: translateY(-7px) rotate(-45deg);
}

.lang-btn {
	font: inherit;
	cursor: pointer;
	background: transparent;
	border: 1px solid var(--line);
	border-radius: 999px;
	color: var(--muted);
	padding: 6px 14px;
	font-size: 12px;
	font-weight: 600;
	transition: 0.2s ease;
}

.lang-btn.active,
.lang-btn:hover {
	background: var(--navy);
	border-color: var(--navy);
	color: #fff;
}

main {
	display: block;
}

main section {
	max-width: 1240px;
	margin: 0 auto;
	padding: clamp(88px, 10vw, 132px) clamp(20px, 5vw, 72px);
	scroll-margin-top: var(--header-h);
}

#home {
	position: relative;
	max-width: none;
	overflow: hidden;
	padding: 0 0 clamp(64px, 8vw, 110px);
}

.hero-bg {
	position: absolute;
	inset: 0;
	background:
		radial-gradient(900px 520px at 18% 6%, rgba(33, 102, 201, 0.16), transparent 65%),
		radial-gradient(760px 480px at 82% 14%, rgba(125, 58, 196, 0.13), transparent 62%),
		radial-gradient(1100px 620px at 50% 100%, rgba(26, 34, 56, 0.06), transparent 70%);
	mask-image: linear-gradient(to bottom, #000 46%, transparent 96%);
	-webkit-mask-image: linear-gradient(to bottom, #000 46%, transparent 96%);
}

.hero-content {
	position: relative;
	z-index: 1;
	max-width: 1240px;
	margin: 0 auto;
	padding: clamp(96px, 14vw, 176px) clamp(20px, 5vw, 72px) 0;
}

.eyebrow {
	margin: 0 0 18px;
	color: var(--accent);
	font-size: 12px;
	font-weight: 700;
	letter-spacing: 0.22em;
	text-transform: uppercase;
}

.title {
	max-width: 820px;
	margin: 0;
	color: var(--navy);
	font-size: clamp(44px, 7vw, 88px);
	font-weight: 700;
	letter-spacing: -0.045em;
	line-height: 1.06;
}

html[lang="en"] .title {
	max-width: 1020px;
	font-size: clamp(32px, 5.2vw, 64px);
	letter-spacing: -0.025em;
}

.subtitle {
	max-width: 540px;
	margin: 26px 0 34px;
	color: var(--muted);
	font-size: clamp(17px, 2vw, 21px);
}

.hero-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 14px;
}

.hero-cta {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 156px;
	padding: 13px 26px;
	border: 1px solid transparent;
	border-radius: 999px;
	background: linear-gradient(135deg, var(--brand), var(--brand-dark));
	color: #fff;
	font-size: 14px;
	font-weight: 700;
	letter-spacing: 0.02em;
	text-decoration: none;
	box-shadow: 0 12px 28px rgba(33, 102, 201, 0.32);
	transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.hero-cta.secondary {
	background: rgba(253, 253, 254, 0.6);
	border-color: rgba(28, 34, 48, 0.16);
	color: var(--navy);
	box-shadow: none;
}

.hero-cta.secondary:hover {
	background: var(--navy);
	border-color: var(--navy);
	color: #fff;
}

@keyframes heroIn {
	from {
		opacity: 0;
		transform: translateY(30px);
	}
	to {
		opacity: 1;
		transform: none;
	}
}

.hero-content > * {
	animation: heroIn 0.8s ease both;
}

.hero-content > *:nth-child(2) {
	animation-delay: 0.1s;
}

.hero-content > *:nth-child(3) {
	animation-delay: 0.2s;
}

.hero-content > *:nth-child(4) {
	animation-delay: 0.3s;
}

.carousel {
	position: relative;
	z-index: 1;
	width: min(100%, 1120px);
	margin: clamp(46px, 7vw, 84px) auto 0;
	padding: 0 20px;
}

.carousel-inner {
	position: relative;
	height: clamp(320px, 48vw, 590px);
	overflow: hidden;
	border: 1px solid rgba(28, 34, 48, 0.08);
	border-radius: var(--radius-lg);
	background: var(--card);
	box-shadow: var(--shadow);
}

.carousel-item {
	position: absolute;
	inset: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	opacity: 0;
	transition: opacity 0.6s ease;
}

.carousel-item.active {
	z-index: 1;
	opacity: 1;
}

.carousel-item img {
	width: 100%;
	height: 100%;
	object-fit: contain;
	padding: 20px;
}

.carousel-btn {
	position: absolute;
	top: 50%;
	z-index: 3;
	display: grid;
	width: 46px;
	height: 46px;
	transform: translateY(-50%);
	place-items: center;
	border: 1px solid rgba(255, 255, 255, 0.45);
	border-radius: 50%;
	background: rgba(26, 34, 56, 0.78);
	color: #fff;
	font-size: 20px;
	cursor: pointer;
	transition: background 0.2s ease, transform 0.2s ease;
}

.carousel-btn:hover {
	background: var(--brand);
}

.carousel-btn.prev {
	left: 34px;
}

.carousel-btn.next {
	right: 34px;
}

.carousel-dots {
	position: absolute;
	z-index: 3;
	bottom: 18px;
	left: 50%;
	transform: translateX(-50%);
	display: flex;
	gap: 7px;
	padding: 9px 15px;
	border-radius: 999px;
	background: rgba(26, 34, 56, 0.45);
	backdrop-filter: blur(8px);
	-webkit-backdrop-filter: blur(8px);
}

.carousel-dots button {
	width: 8px;
	height: 8px;
	padding: 0;
	border: 0;
	border-radius: 999px;
	background: rgba(255, 255, 255, 0.55);
	cursor: pointer;
	transition: width 0.25s ease, background 0.25s ease;
}

.carousel-dots button:hover {
	background: #fff;
}

.carousel-dots button.active {
	width: 24px;
	background: #fff;
}

.carousel-count {
	position: absolute;
	z-index: 3;
	right: 34px;
	bottom: 20px;
	padding: 6px 13px;
	border-radius: 999px;
	background: rgba(26, 34, 56, 0.45);
	backdrop-filter: blur(8px);
	-webkit-backdrop-filter: blur(8px);
	color: rgba(255, 255, 255, 0.92);
	font-size: 12px;
	font-weight: 600;
	letter-spacing: 0.08em;
	font-variant-numeric: tabular-nums;
}

.section-heading {
	max-width: 720px;
	margin: 0 auto 48px;
	text-align: center;
}

.section-title {
	margin: 0;
	color: var(--navy);
	font-size: clamp(32px, 4.6vw, 56px);
	font-weight: 700;
	letter-spacing: -0.04em;
	line-height: 1.12;
}

.section-intro {
	margin: 18px auto 0;
	color: var(--muted);
	font-size: clamp(15px, 1.6vw, 17px);
}

.product-tabs {
	display: flex;
	justify-content: center;
	flex-wrap: wrap;
	gap: 10px;
	margin-bottom: 38px;
}

.tab-btn {
	padding: 11px 26px;
	border: 1px solid var(--line);
	border-radius: 999px;
	background: transparent;
	color: var(--muted);
	font: inherit;
	font-size: 14px;
	font-weight: 600;
	cursor: pointer;
	transition: 0.2s ease;
}

.tab-btn.active,
.tab-btn:hover {
	border-color: var(--navy);
	background: var(--navy);
	color: #fff;
}

.product-category {
	display: none;
}

.product-category.active {
	display: block;
}

.product-list {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
	gap: 24px;
}

.product-item {
	overflow: hidden;
	padding: 15px 15px 20px;
	border: 1px solid rgba(28, 34, 48, 0.08);
	border-radius: var(--radius-md);
	background: var(--card);
	box-shadow: var(--shadow-soft);
	text-align: left;
	transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.thumb-wrap {
	position: relative;
	margin: 0 0 16px;
}

.fabric-thumb {
	display: block;
	width: 100%;
	height: 200px;
	border-radius: var(--radius-sm);
	object-fit: cover;
	cursor: zoom-in;
	transition: transform 0.35s ease;
}

.badge {
	position: absolute;
	top: 11px;
	left: 11px;
	padding: 4px 11px;
	border-radius: 999px;
	background: linear-gradient(90deg, var(--brand), var(--accent));
	color: #fff;
	font-size: 11px;
	font-weight: 700;
	letter-spacing: 0.06em;
	box-shadow: 0 6px 14px rgba(33, 102, 201, 0.35);
}

.product-info {
	padding: 0 4px;
}

.product-info h3 {
	margin: 0 0 6px;
	color: var(--navy);
	font-size: 17px;
	line-height: 1.32;
	letter-spacing: -0.01em;
}

.product-info p {
	margin: 0;
	color: var(--muted);
	font-size: 13.5px;
}

.modal {
	position: fixed;
	inset: 0;
	z-index: 100;
	display: none;
	flex-direction: column;
	align-items: center;
	justify-content: safe center;
	gap: 16px;
	padding: 24px;
	padding-bottom: calc(24px + env(safe-area-inset-bottom));
	overflow-y: auto;
	background: rgba(13, 25, 29, 0.88);
	backdrop-filter: blur(10px);
	-webkit-backdrop-filter: blur(10px);
}

.modal.show {
	display: flex;
}

.modal-content {
	max-width: min(88vw, 1000px);
	max-height: 76vh;
	border: 5px solid rgba(253, 253, 254, 0.92);
	border-radius: 18px;
	box-shadow: 0 25px 70px rgba(0, 0, 0, 0.3);
}

.modal-caption {
	max-width: min(88vw, 900px);
	margin: 0;
	color: rgba(255, 255, 255, 0.88);
	font-size: 14px;
	font-weight: 600;
	letter-spacing: 0.02em;
	text-align: center;
}

.close {
	position: fixed;
	top: 26px;
	right: 32px;
	top: calc(26px + env(safe-area-inset-top));
	right: calc(32px + env(safe-area-inset-right));
	z-index: 2;
	display: grid;
	width: 46px;
	height: 46px;
	place-items: center;
	padding: 0;
	border: 0;
	border-radius: 50%;
	background: rgba(255, 255, 255, 0.14);
	color: #fff;
	font-family: inherit;
	font-size: 30px;
	line-height: 1;
	cursor: pointer;
	transition: background 0.2s ease, transform 0.2s ease;
}

.close:hover {
	background: var(--brand);
}

.modal-nav {
	position: fixed;
	top: 50%;
	z-index: 2;
	display: grid;
	width: 48px;
	height: 48px;
	place-items: center;
	transform: translateY(-50%);
	border: 1px solid rgba(255, 255, 255, 0.3);
	border-radius: 50%;
	background: rgba(255, 255, 255, 0.1);
	color: #fff;
	font-size: 20px;
	cursor: pointer;
	transition: background 0.2s ease;
}

.modal-nav:hover {
	background: var(--brand);
}

.modal-nav.prev {
	left: 26px;
}

.modal-nav.next {
	right: 26px;
}

.about-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
	gap: 22px;
}

.about-card {
	padding: 30px 26px;
	border: 1px solid rgba(28, 34, 48, 0.08);
	border-radius: var(--radius-md);
	background: var(--card);
	box-shadow: var(--shadow-soft);
	transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.about-icon {
	display: grid;
	place-items: center;
	width: 54px;
	height: 54px;
	margin-bottom: 18px;
	border-radius: 17px;
	background: rgba(33, 102, 201, 0.1);
	color: var(--brand);
}

.about-icon svg {
	width: 26px;
	height: 26px;
}

.about-card h3 {
	margin: 0 0 8px;
	color: var(--navy);
	font-size: 18px;
	letter-spacing: -0.01em;
}

.about-card p {
	margin: 0;
	color: var(--muted);
	font-size: 14.5px;
}

.contact-grid {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 22px;
}

.contact-card {
	display: flex;
	align-items: flex-start;
	gap: 18px;
	padding: 26px 24px;
	border: 1px solid rgba(28, 34, 48, 0.08);
	border-radius: var(--radius-md);
	background: var(--card);
	box-shadow: var(--shadow-soft);
	transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.contact-card.wide {
	grid-column: 1 / -1;
}

.contact-icon {
	display: grid;
	place-items: center;
	flex-shrink: 0;
	width: 54px;
	height: 54px;
	border-radius: 17px;
	background: rgba(125, 58, 196, 0.09);
	color: var(--accent);
}

.contact-icon svg {
	width: 26px;
	height: 26px;
}

.contact-body {
	display: grid;
	gap: 4px;
	min-width: 0;
}

.contact-label {
	color: var(--muted);
	font-size: 12px;
	font-weight: 700;
	letter-spacing: 0.12em;
	text-transform: uppercase;
}

.contact-value {
	color: var(--ink);
	font-size: 16px;
	font-weight: 600;
	text-decoration: none;
	line-height: 1.6;
}

a.contact-value {
	color: var(--brand-dark);
	transition: color 0.2s ease;
}

a.contact-value:hover {
	color: var(--brand);
	text-decoration: underline;
}

.footer {
	padding: 46px 20px 34px;
	padding-bottom: calc(34px + env(safe-area-inset-bottom));
	background: var(--navy);
	color: rgba(255, 255, 255, 0.72);
	text-align: center;
}

.footer-inner {
	max-width: 1240px;
	margin: 0 auto;
	display: grid;
	justify-items: center;
	gap: 18px;
}

.footer-brand {
	display: flex;
	align-items: center;
	gap: 12px;
}

.footer-logo {
	display: block;
	width: 40px;
	height: 40px;
	border-radius: 13px;
	object-fit: cover;
	box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
}

.footer-brand strong {
	color: #fff;
	font-size: 16px;
	letter-spacing: 0.06em;
}

.footer-nav {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: 10px 26px;
}

.footer-link {
	color: rgba(255, 255, 255, 0.7);
	font-size: 13px;
	font-weight: 600;
	text-decoration: none;
	transition: color 0.2s ease;
}

.footer-link:hover {
	color: #fff;
}

.footer-inner p {
	margin: 6px 0 0;
	color: rgba(255, 255, 255, 0.55);
	font-size: 12px;
	letter-spacing: 0.05em;
}

@media (max-width: 900px) {
	:root {
		--header-h: 76px;
	}

	.site-header {
		flex-wrap: nowrap;
		gap: 12px;
		padding: 8px 14px;
		padding-top: calc(8px + env(safe-area-inset-top));
	}

	.brand {
		margin-right: auto;
	}

	.header-actions {
		gap: 8px;
	}

	.nav-toggle {
		display: flex;
	}

	nav {
		position: absolute;
		top: 100%;
		left: 0;
		right: 0;
		z-index: 49;
		overflow: hidden;
		padding: 0 20px;
		background: rgba(253, 253, 254, 0.98);
		border-bottom: 1px solid rgba(28, 34, 48, 0.08);
		box-shadow: 0 18px 34px rgba(28, 34, 48, 0.12);
		opacity: 0;
		visibility: hidden;
		transform: translateY(-10px);
		pointer-events: none;
		transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
	}

	.site-header.nav-open nav {
		opacity: 1;
		visibility: visible;
		transform: none;
		pointer-events: auto;
	}

	nav ul {
		flex-direction: column;
		align-items: stretch;
		gap: 2px;
		min-width: 0;
		padding: 10px 0 16px;
	}

	.nav-link {
		display: block;
		padding: 13px 6px;
		font-size: 16px;
	}

	.nav-link::after {
		bottom: 4px;
	}
}

@media (max-width: 640px) {
	.product-list {
		grid-template-columns: repeat(2, minmax(0, 1fr));
		gap: 14px;
	}

	.product-item {
		padding: 10px 10px 14px;
		border-radius: 15px;
	}

	.fabric-thumb {
		height: 160px;
		object-fit: contain;
		background: #eceef3;
		padding: 6px;
	}

	.product-info h3 {
		font-size: 14px;
	}

	.product-info p {
		font-size: 12px;
	}

	.contact-grid {
		grid-template-columns: 1fr;
	}

	.carousel-item img {
		padding: 12px;
	}

	.carousel-btn {
		width: 40px;
		height: 40px;
	}

	.carousel-btn.prev {
		left: 14px;
	}

	.carousel-btn.next {
		right: 14px;
	}

	.carousel-count {
		right: 14px;
		bottom: 14px;
	}

	.modal-nav {
		width: 42px;
		height: 42px;
	}

	.modal-nav.prev {
		left: 10px;
	}

	.modal-nav.next {
		right: 10px;
	}
}

@media (max-width: 560px) {
	.carousel-dots {
		display: none;
	}
}

@media (max-width: 420px) {
	.brand-copy {
		display: none;
	}

	.product-list {
		grid-template-columns: 1fr;
	}

	.product-item {
		display: flex;
		align-items: center;
		gap: 14px;
	}

	.thumb-wrap {
		flex: 0 0 42%;
		margin: 0;
	}

	.fabric-thumb {
		height: 118px;
		object-fit: cover;
		padding: 0;
	}

	.product-info {
		padding: 0;
	}
}

@media (prefers-reduced-motion: reduce) {
	html {
		scroll-behavior: auto;
	}

	html.js .reveal {
		opacity: 1;
		transform: none;
		transition: none;
	}

	.hero-content > * {
		animation: none;
	}

	.carousel-item,
	.site-header,
	.nav-link,
	.nav-link::after,
	.hero-cta,
	.product-item,
	.fabric-thumb,
	.about-card,
	.contact-card,
	.close,
	.carousel-dots button {
		transition: none;
	}
}