/**
 * About page — styles from mach-about.html (page sections only).
 * Nav / footer come from the theme chrome.
 */

/* ---- page chrome overrides (match static: banner under fixed transparent nav) ---- */
html:has(body.page-about) {
	scroll-behavior: smooth;
	scroll-padding-top: 88px;
}

body.page-about {
	padding-top: 0 !important;
}

/* Force Mach palette on this page (base.css green must not leak) */
body.page-about {
	--black: #0b0c0e;
	--black2: #141518;
	--white: #ffffff;
	--off: #f7f7f8;
	--tint: #f4f6fa;
	--blue: #1f6feb;
	--blue-deep: #0d2f66;
	--blue-light: #5a97ff;
	--gray: #6b7280;
	--line: rgba(0, 0, 0, 0.09);
	--line-d: rgba(255, 255, 255, 0.14);
	--maxw: 1400px;
	--radius: 2px;
	--ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* Match static .wrap — exclude shared footer (.wrap.footgrid / .wrap.footbar) */
body.page-about h1,
body.page-about h2,
body.page-about h3 {
	font-family: 'Archivo', sans-serif;
	letter-spacing: -0.01em;
}

body.page-about p {
	margin: 0;
	line-height: 1.65;
	color: var(--gray, #6b7280);
}

body.page-about .wrap:not(.footgrid):not(.footbar) {
	max-width: var(--maxw, 1400px);
	margin: 0 auto;
	padding: 0 40px;
	box-sizing: border-box;
}

@media (max-width: 1000px) {
	body.page-about .wrap:not(.footgrid):not(.footbar) {
		padding: 0 24px;
	}
}

/* Match static: CTA → footer seam */
body.page-about .site-footer {
	border-top: 1px solid var(--line-d, rgba(255, 255, 255, 0.14));
}

/* Transparent light nav over dark banner (undo inner-page white nav) */
body.page-about #nav {
	background: transparent !important;
	backdrop-filter: none !important;
	-webkit-backdrop-filter: none !important;
	color: #fff !important;
	box-shadow: none !important;
}

body.page-about #nav .nav-inner {
	height: 96px !important;
}

body.page-about #nav .nav-rule {
	background: rgba(255, 255, 255, 0.22) !important;
}

body.page-about #nav .logo .lg-light {
	display: block !important;
}

body.page-about #nav .logo .lg-dark {
	display: none !important;
}

body.page-about #nav .navcta {
	border-color: rgba(255, 255, 255, 0.55) !important;
	color: inherit !important;
}

body.page-about #nav .navcta:hover {
	background: var(--blue, #1f6feb) !important;
	border-color: var(--blue, #1f6feb) !important;
	color: #fff !important;
}

body.page-about #nav .searchbtn,
body.page-about #nav .iconbtn {
	background: rgba(255, 255, 255, 0.14) !important;
	border-color: rgba(255, 255, 255, 0.3) !important;
	color: #fff !important;
}

body.page-about #nav .searchbtn:hover,
body.page-about #nav .iconbtn:hover {
	background: var(--blue, #1f6feb) !important;
	border-color: var(--blue, #1f6feb) !important;
	color: #fff !important;
}

/* Scrolled / menu-open: restore white chrome */
body.page-about #nav.scrolled,
body.page-about #nav.menu-open {
	background: rgba(255, 255, 255, 0.96) !important;
	backdrop-filter: blur(12px) !important;
	-webkit-backdrop-filter: blur(12px) !important;
	color: var(--black, #0b0c0e) !important;
	box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08) !important;
}

body.page-about #nav.scrolled .nav-inner,
body.page-about #nav.menu-open .nav-inner {
	height: 70px !important;
}

body.page-about #nav.scrolled .nav-rule,
body.page-about #nav.menu-open .nav-rule {
	background: var(--line, rgba(0, 0, 0, 0.09)) !important;
}

body.page-about #nav.scrolled .logo .lg-light,
body.page-about #nav.menu-open .logo .lg-light {
	display: none !important;
}

body.page-about #nav.scrolled .logo .lg-dark,
body.page-about #nav.menu-open .logo .lg-dark {
	display: block !important;
}

body.page-about #nav.scrolled .navcta,
body.page-about #nav.menu-open .navcta {
	border-color: rgba(11, 12, 14, 0.24) !important;
}

body.page-about #nav.scrolled .navcta:hover,
body.page-about #nav.menu-open .navcta:hover {
	background: var(--blue, #1f6feb) !important;
	border-color: var(--blue, #1f6feb) !important;
	color: #fff !important;
}

body.page-about #nav.scrolled .searchbtn,
body.page-about #nav.menu-open .searchbtn,
body.page-about #nav.scrolled .iconbtn,
body.page-about #nav.menu-open .iconbtn {
	background: transparent !important;
	border-color: rgba(0, 0, 0, 0.16) !important;
	color: var(--black, #0b0c0e) !important;
}

body.page-about #nav.scrolled .searchbtn:hover,
body.page-about #nav.menu-open .searchbtn:hover,
body.page-about #nav.scrolled .iconbtn:hover,
body.page-about #nav.menu-open .iconbtn:hover {
	background: var(--blue, #1f6feb) !important;
	border-color: var(--blue, #1f6feb) !important;
	color: #fff !important;
}

@media (max-width: 900px) {
	body.page-about #nav .nav-inner {
		height: 76px !important;
		padding: 0 22px;
	}

	body.page-about #nav.scrolled .nav-inner,
	body.page-about #nav.menu-open .nav-inner {
		height: 70px !important;
	}
}

/* ---- inner banner (Mach) ---- */
.page-about #banner {
	position: relative;
	background: var(--black, #0b0c0e);
	color: #fff;
	overflow: hidden;
	min-height: 340px;
	display: flex;
	align-items: flex-end;
	margin: 0;
	width: 100%;
}

.page-about #banner .bg {
	position: absolute;
	inset: -4% 0;
	background: var(--black, #0b0c0e) 50% 55% / cover no-repeat;
	will-change: transform;
	animation: about-bgIn 1.6s var(--ease, cubic-bezier(.2, .8, .2, 1)) both;
}

.page-about #banner .bg.has-img {
	background-color: transparent;
}

@keyframes about-bgIn {
	from { opacity: 0; transform: scale(1.12); }
	to { opacity: 1; transform: scale(1.04); }
}

@keyframes about-rise {
	to { opacity: 1; transform: none; }
}

.page-about .bn-in > * {
	opacity: 0;
	transform: translateY(22px);
	animation: about-rise .9s var(--ease, cubic-bezier(.2, .8, .2, 1)) forwards;
}

.page-about .bn-in > *:nth-child(1) { animation-delay: .1s; }
.page-about .bn-in > *:nth-child(2) { animation-delay: .2s; }
.page-about .bn-in > *:nth-child(3) { animation-delay: .3s; }
.page-about .bn-in > *:nth-child(4) { animation-delay: .42s; }
.page-about .bn-in > *:nth-child(5) { animation-delay: .54s; }

@media (prefers-reduced-motion: reduce) {
	.page-about .bn-in > * {
		opacity: 1;
		transform: none;
		animation: none;
	}
	.page-about #banner .bg {
		animation: none;
	}
}

.page-about #banner::before {
	content: '';
	position: absolute;
	inset: 0;
	z-index: 1;
	background:
		linear-gradient(to bottom, rgba(5, 7, 10, .62) 0%, rgba(5, 7, 10, .2) 34%, rgba(5, 7, 10, 0) 55%),
		linear-gradient(to top, rgba(5, 7, 10, .9) 0%, rgba(5, 7, 10, .45) 38%, rgba(5, 7, 10, .1) 70%),
		linear-gradient(to right, rgba(5, 7, 10, .55) 0%, rgba(5, 7, 10, 0) 55%);
}

.page-about .bn-inner {
	position: relative;
	z-index: 2;
	width: 100%;
	max-width: var(--maxw, 1400px);
	margin: 0 auto;
	padding: 112px 48px 28px;
}

.page-about #banner .bn-lede {
	max-width: 960px;
	margin: 6px 0 26px;
	font-size: 16.5px;
	line-height: 1.7;
	color: rgba(255, 255, 255, .75);
}

.page-about #banner h1 {
	font-family: 'Archivo', sans-serif;
	font-weight: 800;
	font-size: 40px;
	line-height: 1.06;
	letter-spacing: -.02em;
	margin: 0 0 18px;
	color: #fff;
}

.page-about .crumbs {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 10px;
	font-size: 13px;
	color: rgba(255, 255, 255, .62);
}

.page-about .crumbs a {
	transition: color .2s;
	color: inherit;
	text-decoration: none;
}

.page-about .crumbs a:hover { color: #fff; }

.page-about .crumbs .sep {
	width: 5px;
	height: 5px;
	border-top: 1px solid currentColor;
	border-right: 1px solid currentColor;
	transform: rotate(45deg);
	opacity: .6;
}

.page-about .crumbs .now {
	color: #fff;
	font-weight: 600;
}

@media (max-width: 900px) {
	.page-about .bn-inner { padding: 88px 20px 16px; }
	.page-about #banner { min-height: 170px; }
	.page-about #banner h1 { font-size: 28px; margin-bottom: 10px; }
	.page-about #banner .bn-lede {
		font-size: 14.5px;
		line-height: 1.55;
		max-width: 100%;
		margin: 0 0 16px;
	}
	.page-about #banner .bg { background-position: center 45%; }
}

/* ---- story ---- */
.page-about #story {
	position: relative;
	overflow: hidden;
	padding: 56px 0 88px;
	background: #e9edf3 center center / cover no-repeat fixed;
}

.page-about #story.has-bg {
	background-color: #e9edf3;
}

@media (max-width: 900px) {
	.page-about #story { background-attachment: scroll; }
}

.page-about .storygrid {
	display: grid;
	grid-template-columns: minmax(0, 597px) 1fr;
	gap: 56px;
	align-items: center;
}

@media (max-width: 900px) {
	.page-about .storygrid { grid-template-columns: 1fr; }
	.page-about .story-l { padding: 60px 0; }
}

.page-about .story-l {
	display: flex;
	flex-direction: column;
	justify-content: center;
}

.page-about .story-l .tag {
	display: block;
	font-size: 12.5px;
	font-weight: 700;
	color: var(--blue, #1f6feb);
	letter-spacing: .03em;
	margin-bottom: 16px;
}

.page-about .story-l h2 {
	font-family: 'Archivo', sans-serif;
	font-size: clamp(30px, 3.4vw, 44px);
	font-weight: 800;
	line-height: 1.12;
	letter-spacing: -.02em;
	margin: 0 0 22px;
	color: var(--black, #0b0c0e);
}

.page-about .story-l p,
.page-about .story-l .story-copy {
	font-size: 15px;
	max-width: 500px;
	margin: 0;
	line-height: 1.65;
	color: var(--gray, #6b7280);
}

/* 公司简介固定约 10 行，超出纵向滚动 */
.page-about .story-l .story-copy {
	max-height: calc(1.65em * 10);
	overflow-x: hidden;
	overflow-y: auto;
	padding-right: 8px;
	-webkit-overflow-scrolling: touch;
	scrollbar-width: thin;
	scrollbar-color: rgba(31, 111, 235, 0.45) transparent;
}

.page-about .story-l .story-copy::-webkit-scrollbar {
	width: 4px;
}

.page-about .story-l .story-copy::-webkit-scrollbar-thumb {
	background: rgba(31, 111, 235, 0.45);
	border-radius: 2px;
}

.page-about .story-l .story-copy::-webkit-scrollbar-track {
	background: transparent;
}

.page-about .story-l .story-copy p {
	margin: 0 0 .75em;
	max-width: none;
	color: inherit;
}

.page-about .story-l .story-copy p:last-child { margin-bottom: 0; }

.page-about .story-r {
	position: relative;
	display: flex;
}

.page-about .storypic {
	position: relative;
	z-index: 1;
	display: block;
	width: 100%;
	aspect-ratio: 1.42;
	object-fit: cover;
	background: #d5dae3;
}

.page-about .shtri {
	position: absolute;
	z-index: 0;
	display: block;
	background: var(--blue, #1f6feb);
}

.page-about .shtri-a {
	left: 100%;
	top: 0;
	width: 26.8%;
	aspect-ratio: 189 / 198;
	clip-path: polygon(0 24.2%, 100% 0, 0 100%);
}

.page-about .shtri-b {
	right: 100%;
	top: 39.9%;
	width: 18.3%;
	aspect-ratio: 129 / 168;
	clip-path: polygon(100% 0, 100% 100%, 0 19%);
}

.page-about .shtri-c {
	left: 23.5%;
	top: 100%;
	width: 24.2%;
	aspect-ratio: 171 / 88;
	clip-path: polygon(0 0, 100% 0, 48% 100%);
}

/* ---- stats ---- */
.page-about .stats {
	background: var(--black, #0b0c0e);
	color: #fff;
}

.page-about .statrow {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
}

.page-about .statitem {
	padding: 50px 30px;
	border-left: 1px solid var(--line-d, rgba(255, 255, 255, .14));
	text-align: left;
	position: relative;
	transition: background .3s ease;
}

.page-about .statitem:hover { background: rgba(31, 111, 235, .09); }
.page-about .statitem:first-child { border-left: none; }

@media (max-width: 800px) {
	.page-about .statrow { grid-template-columns: 1fr 1fr; }
	.page-about .statitem {
		border-left: none;
		border-top: 1px solid var(--line-d, rgba(255, 255, 255, .14));
	}
}

.page-about .statitem .sicon {
	display: block;
	width: 40px;
	height: 40px;
	object-fit: contain;
	margin-bottom: 18px;
}

.page-about .statitem .n {
	font-family: 'Archivo', sans-serif;
	font-size: 38px;
	font-weight: 800;
	line-height: 1;
	color: var(--blue-light, #5a97ff);
	transition: transform .3s ease;
}

.page-about .statitem .n.inf {
	font-size: 46px;
	line-height: 38px;
}

.page-about .statitem:hover .n { transform: translateX(4px); }

.page-about .statitem .l {
	font-size: 16px;
	color: rgba(255, 255, 255, .55);
	margin-top: 6px;
}

.page-about .statitem::after {
	content: '';
	position: absolute;
	left: 30px;
	bottom: 0;
	width: 0;
	height: 2px;
	background: var(--blue-light, #5a97ff);
	transition: width .35s ease;
}

.page-about .statitem:hover::after { width: 28px; }

/* ---- factory ---- */
.page-about #factory {
	padding: 120px 0 112px;
	background: #fff;
	border-top: 1px solid var(--line, rgba(0, 0, 0, .09));
}

.page-about .fx-head {
	display: flex;
	justify-content: space-between;
	align-items: flex-end;
	gap: 48px;
	margin-bottom: 56px;
	padding-bottom: 28px;
	border-bottom: 1px solid var(--line, rgba(0, 0, 0, .09));
}

.page-about .fx-head .tag {
	display: block;
	font-size: 12.5px;
	font-weight: 700;
	color: var(--blue, #1f6feb);
	letter-spacing: .03em;
	margin-bottom: 16px;
}

.page-about .fx-head h2 {
	font-family: 'Archivo', sans-serif;
	font-size: clamp(30px, 3.4vw, 44px);
	font-weight: 800;
	line-height: 1.12;
	letter-spacing: -.02em;
	max-width: 660px;
	margin: 0;
	color: var(--black, #0b0c0e);
}

.page-about .fx-head .fx-desc {
	max-width: 380px;
	font-size: 15px;
	line-height: 1.65;
	color: var(--gray, #6b7280);
	margin: 0;
	padding-bottom: 6px;
}

@media (max-width: 900px) {
	.page-about .fx-head {
		flex-direction: column;
		align-items: flex-start;
		gap: 20px;
	}
	.page-about .fx-head .fx-desc { max-width: none; }
}

.page-about .fx-slider { position: relative; }

.page-about .fx-rail {
	display: flex;
	gap: 24px;
	overflow-x: auto;
	scroll-snap-type: x mandatory;
	padding-bottom: 2px;
	-webkit-overflow-scrolling: touch;
	scrollbar-width: none;
	-ms-overflow-style: none;
	cursor: grab;
}

.page-about .fx-rail::-webkit-scrollbar { display: none; }
.page-about .fx-rail.dragging {
	cursor: grabbing;
	scroll-snap-type: none;
	scroll-behavior: auto;
}

.page-about .fx-slide {
	flex: 0 0 calc((100% - 48px) / 3);
	margin: 0;
	padding: 0;
	aspect-ratio: 3 / 2;
	scroll-snap-align: start;
	position: relative;
	background: var(--tint, #f4f6fa);
	border: none;
	overflow: hidden;
	box-shadow: 0 1px 0 var(--line, rgba(0, 0, 0, .09)), 0 18px 40px -26px rgba(11, 12, 14, .28);
	transition: box-shadow .5s ease, transform .5s cubic-bezier(.2, .8, .2, 1);
}

.page-about figure.fx-slide {
	margin: 0;
}

.page-about .fx-slide::after {
	content: '';
	position: absolute;
	inset: 0;
	pointer-events: none;
	background: linear-gradient(to top, rgba(11, 12, 14, .5), transparent 45%);
	opacity: 0;
	transition: opacity .5s ease;
}

.page-about .fx-slide::before {
	content: '';
	position: absolute;
	left: 0;
	bottom: 0;
	z-index: 2;
	width: 0;
	height: 3px;
	background: var(--blue, #1f6feb);
	transition: width .6s cubic-bezier(.2, .8, .2, 1);
}

.page-about .fx-slide:hover {
	box-shadow: 0 1px 0 var(--line, rgba(0, 0, 0, .09)), 0 28px 50px -24px rgba(11, 12, 14, .4);
}

.page-about .fx-slide:hover::after { opacity: 1; }
.page-about .fx-slide:hover::before { width: 100%; }

.page-about .fx-slide img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform 1.1s cubic-bezier(.2, .8, .2, 1);
	user-select: none;
	-webkit-user-drag: none;
}

.page-about .fx-slide:hover img { transform: scale(1.06); }

.page-about .fx-arrow {
	position: absolute;
	top: 50%;
	z-index: 2;
	width: 52px;
	height: 52px;
	margin-top: -26px;
	padding: 0;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	background: var(--blue, #1f6feb);
	color: #fff;
	border: 1px solid var(--blue, #1f6feb);
	border-radius: var(--radius, 2px);
	box-shadow: 0 10px 24px -8px rgba(31, 111, 235, .55);
	transition: background .25s ease, border-color .25s ease, opacity .25s ease, transform .25s ease;
}

.page-about .fx-arrow svg {
	width: 18px;
	height: 18px;
	display: block;
}

.page-about .fx-arrow:hover:not(:disabled) {
	background: var(--blue-deep, #0d2f66);
	border-color: var(--blue-deep, #0d2f66);
	transform: scale(1.08);
}

.page-about .fx-arrow:active:not(:disabled) { transform: scale(.96); }

.page-about .fx-arrow:disabled {
	opacity: 0;
	pointer-events: none;
}

.page-about .fx-prev { left: -26px; }
.page-about .fx-next { right: -26px; }

.page-about .fx-bar {
	position: relative;
	height: 2px;
	margin-top: 34px;
	background: var(--line, rgba(0, 0, 0, .09));
	overflow: hidden;
}

.page-about .fx-bar i {
	position: absolute;
	left: 0;
	top: 0;
	height: 100%;
	width: 33%;
	background: var(--blue, #1f6feb);
	transition: transform .35s cubic-bezier(.2, .8, .2, 1), width .35s ease;
	will-change: transform;
}

@media (max-width: 1500px) {
	.page-about .fx-prev { left: 14px; }
	.page-about .fx-next { right: 14px; }
}

@media (max-width: 1100px) {
	.page-about .fx-slide { flex: 0 0 calc((100% - 24px) / 2); }
}

@media (max-width: 700px) {
	.page-about #factory { padding: 80px 0; }
	.page-about .fx-head { margin-bottom: 36px; }
	.page-about .fx-slide { flex: 0 0 86%; }
	.page-about .fx-arrow {
		width: 42px;
		height: 42px;
		margin-top: -21px;
	}
	.page-about .fx-prev { left: 8px; }
	.page-about .fx-next { right: 8px; }
}

/* ---- advantages ---- */
.page-about #advantages {
	position: relative;
	padding: 120px 0;
	background: var(--black, #0b0c0e);
	color: #fff;
	border-top: 1px solid var(--line, rgba(0, 0, 0, .09));
	overflow: hidden;
}

.page-about .adv-bg {
	position: absolute;
	inset: 0;
	z-index: 0;
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: center 45%;
}

.page-about #advantages > .wrap {
	position: relative;
	z-index: 1;
}

.page-about .adv-grid {
	display: grid;
	grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
	gap: 64px;
	align-items: start;
}

@media (max-width: 1000px) {
	.page-about .adv-grid {
		grid-template-columns: 1fr;
		gap: 44px;
	}
}

.page-about .adv-l { position: sticky; top: 130px; }

@media (max-width: 1000px) {
	.page-about .adv-l { position: static; }
}

.page-about .adv-l .tag {
	display: block;
	font-size: 12.5px;
	font-weight: 700;
	color: var(--blue-light, #5a97ff);
	letter-spacing: .03em;
	margin-bottom: 16px;
}

.page-about .adv-l h2 {
	font-family: 'Archivo', sans-serif;
	font-size: clamp(30px, 3.4vw, 44px);
	font-weight: 800;
	line-height: 1.12;
	letter-spacing: -.02em;
	margin: 0 0 20px;
	color: #fff;
}

.page-about .adv-l p {
	font-size: 15px;
	max-width: 330px;
	margin: 0;
	line-height: 1.65;
	color: rgba(255, 255, 255, .72);
}

.page-about .adv-mark {
	display: flex;
	flex-direction: column;
	gap: 5px;
	margin-top: 34px;
}

.page-about .adv-mark i {
	display: block;
	height: 1px;
	width: 34px;
	background: rgba(255, 255, 255, .42);
}

.page-about .adv-mark i:nth-child(3) { width: 20px; }

.page-about .adv-matrix {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 0;
	background: transparent;
	border: none;
	box-shadow: 0 30px 60px -40px rgba(13, 47, 102, .3);
}

@media (max-width: 640px) {
	.page-about .adv-matrix { grid-template-columns: 1fr; }
}

.page-about .adv-cell {
	position: relative;
	overflow: hidden;
	min-height: 250px;
	padding: 40px 36px 46px;
	display: flex;
	flex-direction: column;
	background: rgba(255, 255, 255, .05);
	border-right: 1px solid var(--line-d, rgba(255, 255, 255, .14));
	border-bottom: 1px solid var(--line-d, rgba(255, 255, 255, .14));
	transition: background .4s ease, transform .5s cubic-bezier(.2, .8, .2, 1), box-shadow .5s ease;
}

.page-about .adv-cell:nth-child(2n) { border-right: none; }
.page-about .adv-cell:nth-child(n + 3) { border-bottom: none; }

@media (max-width: 640px) {
	.page-about .adv-cell { border-right: none; }
	.page-about .adv-cell:nth-child(n + 3) {
		border-bottom: 1px solid var(--line-d, rgba(255, 255, 255, .14));
	}
	.page-about .adv-cell:last-child { border-bottom: none; }
}

.page-about .adv-cell .idx {
	font-family: 'Archivo', sans-serif;
	font-size: clamp(34px, 3.2vw, 46px);
	font-weight: 800;
	letter-spacing: -.02em;
	margin-bottom: auto;
	padding-bottom: 36px;
	color: transparent;
	-webkit-text-stroke: 1.2px rgba(90, 151, 255, .6);
	transition: color .4s ease, -webkit-text-stroke-color .4s ease, transform .5s cubic-bezier(.2, .8, .2, 1);
}

.page-about .adv-cell:hover .idx {
	color: var(--blue-light, #5a97ff);
	-webkit-text-stroke-color: var(--blue-light, #5a97ff);
	transform: translateX(6px);
}

.page-about .adv-cell h3 {
	font-family: 'Archivo', sans-serif;
	font-size: 20px;
	font-weight: 700;
	margin: 0 0 10px;
	color: #fff;
	transition: color .3s ease;
}

.page-about .adv-cell:hover h3 { color: var(--blue-light, #5a97ff); }

.page-about .adv-cell p {
	font-size: 14.5px;
	line-height: 1.7;
	margin: 0;
	color: rgba(255, 255, 255, .66);
}

.page-about .adv-cell:hover {
	background: rgba(255, 255, 255, .1);
	transform: translateY(-4px);
	box-shadow: 0 24px 46px -28px rgba(0, 0, 0, .8);
	z-index: 1;
}

.page-about .adv-cell::before {
	content: '';
	position: absolute;
	left: 0;
	bottom: 0;
	width: 0;
	height: 2px;
	background: var(--blue-light, #5a97ff);
	transition: width .4s cubic-bezier(.2, .8, .2, 1);
}

.page-about .adv-cell:hover::before { width: 100%; }

.page-about .adv-cell::after {
	content: '';
	position: absolute;
	right: 28px;
	top: 46px;
	width: 8px;
	height: 8px;
	background: var(--blue-light, #5a97ff);
	transform: rotate(45deg) scale(0);
	transition: transform .3s cubic-bezier(.3, 1.3, .5, 1);
}

.page-about .adv-cell:hover::after {
	transform: rotate(45deg) scale(1);
}

/* ---- certificates ---- */
.page-about #certificates {
	padding: 120px 0;
	background: #eff2f8;
	border-top: 1px solid var(--line, rgba(0, 0, 0, .09));
}

.page-about .cert-head {
	text-align: center;
	margin-bottom: 64px;
}

.page-about .cert-head .tag {
	display: block;
	font-size: 12.5px;
	font-weight: 700;
	color: var(--blue, #1f6feb);
	letter-spacing: .03em;
	margin-bottom: 16px;
}

.page-about .cert-head h2 {
	font-family: 'Archivo', sans-serif;
	font-size: clamp(30px, 3.4vw, 44px);
	font-weight: 800;
	line-height: 1.12;
	letter-spacing: -.02em;
	margin: 0;
	color: var(--black, #0b0c0e);
}

.page-about .cert-head p {
	max-width: 580px;
	margin: 18px auto 0;
	font-size: 15px;
	line-height: 1.65;
	color: var(--gray, #6b7280);
}

.page-about .cert-grid {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: 32px 24px;
}

.page-about .cert {
	display: block;
	width: calc((100% - 96px) / 5);
	height: auto;
	aspect-ratio: 318 / 446;
	object-fit: contain;
	cursor: zoom-in;
	background: transparent;
	filter: drop-shadow(0 14px 22px rgba(13, 47, 102, .16));
	transition: transform .5s cubic-bezier(.2, .8, .2, 1), filter .5s ease;
}

.page-about .cert.is-empty {
	background: rgba(255, 255, 255, .7);
	border: 1px dashed rgba(13, 47, 102, .18);
	cursor: default;
	filter: none;
}

.page-about .cert:not(.is-empty):hover {
	transform: translateY(-10px) scale(1.03);
	filter: drop-shadow(0 26px 34px rgba(13, 47, 102, .28));
}

@media (max-width: 1100px) {
	.page-about .cert { width: calc((100% - 48px) / 3); }
}

@media (max-width: 700px) {
	.page-about #certificates { padding: 80px 0; }
	.page-about .cert { width: calc((100% - 24px) / 2); }
}

/* ---- certificate lightbox ---- */
body.cert-lightbox-open {
	overflow: hidden;
}

.cert-lightbox {
	position: fixed;
	inset: 0;
	z-index: 2000;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 48px 72px;
	background: rgba(5, 7, 10, 0.88);
	backdrop-filter: blur(6px);
	-webkit-backdrop-filter: blur(6px);
	cursor: zoom-out;
}

.cert-lightbox[hidden] {
	display: none !important;
}

.cert-lightbox__stage {
	margin: 0;
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 14px;
	width: min(920px, 100%);
	max-width: 100%;
	cursor: default;
}

.cert-lightbox__viewport {
	width: 100%;
	overflow-x: auto;
	overflow-y: hidden;
	scroll-snap-type: x mandatory;
	-webkit-overflow-scrolling: touch;
	scrollbar-width: none;
	cursor: grab;
	touch-action: pan-y;
}

.cert-lightbox__viewport::-webkit-scrollbar {
	display: none;
}

.cert-lightbox__viewport.is-dragging {
	cursor: grabbing;
	scroll-snap-type: none;
}

.cert-lightbox__track {
	display: flex;
	align-items: center;
	width: 100%;
}

.cert-lightbox__slide {
	flex: 0 0 100%;
	width: 100%;
	scroll-snap-align: center;
	display: flex;
	align-items: center;
	justify-content: center;
	user-select: none;
}

.cert-lightbox__img {
	max-width: 100%;
	max-height: calc(100vh - 120px);
	width: auto;
	height: auto;
	object-fit: contain;
	pointer-events: none;
	filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.45));
}

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

.cert-lightbox__count {
	font-size: 13px;
	letter-spacing: 0.08em;
	color: rgba(255, 255, 255, 0.65);
	font-variant-numeric: tabular-nums;
}

.cert-lightbox__close,
.cert-lightbox__nav {
	position: absolute;
	padding: 0;
	border: 1px solid rgba(255, 255, 255, 0.35);
	border-radius: var(--radius, 2px);
	background: rgba(255, 255, 255, 0.08);
	color: #fff;
	cursor: pointer;
	transition: background 0.2s ease, border-color 0.2s ease, opacity 0.2s ease;
}

.cert-lightbox__close {
	top: 78px;
	right: 22px;
	width: 44px;
	height: 44px;
	font-size: 28px;
	line-height: 1;
}

.cert-lightbox__nav {
	top: 50%;
	width: 52px;
	height: 52px;
	margin-top: -26px;
	display: flex;
	align-items: center;
	justify-content: center;
	background: var(--blue, #1f6feb);
	border-color: var(--blue, #1f6feb);
	box-shadow: 0 10px 24px -8px rgba(31, 111, 235, 0.55);
}

.cert-lightbox__nav svg {
	width: 18px;
	height: 18px;
	display: block;
}

.cert-lightbox__prev {
	left: 22px;
}

.cert-lightbox__next {
	right: 22px;
}

.cert-lightbox__close:hover,
.cert-lightbox__nav:hover {
	background: var(--blue-deep, #0d2f66);
	border-color: var(--blue-deep, #0d2f66);
}

.cert-lightbox__nav:disabled,
.cert-lightbox__nav[hidden] {
	opacity: 0;
	pointer-events: none;
}

@media (max-width: 700px) {
	.cert-lightbox {
		padding: 56px 16px 24px;
	}

	.cert-lightbox__nav {
		width: 42px;
		height: 42px;
		margin-top: -21px;
	}

	.cert-lightbox__prev {
		left: 8px;
	}

	.cert-lightbox__next {
		right: 8px;
	}

	.cert-lightbox__img {
		max-height: calc(100vh - 140px);
	}
}

/* ---- CTA ---- */
.page-about #cta {
	position: relative;
	background: var(--black, #0b0c0e);
	color: #fff;
	overflow: hidden;
	isolation: isolate;
	padding: 104px 0;
}

.page-about #cta::before {
	content: '';
	position: absolute;
	right: -40px;
	top: 0;
	width: 44%;
	height: 100%;
	background: linear-gradient(120deg, transparent 20%, rgba(31, 111, 235, .2) 70%, transparent 100%);
	transform: skewX(-14deg);
	z-index: -1;
	animation: about-ctaSweep 9s ease-in-out infinite alternate;
}

.page-about #cta::after {
	content: '';
	position: absolute;
	left: 0;
	right: 0;
	top: 0;
	height: 1px;
	z-index: -1;
	background: linear-gradient(90deg, transparent, rgba(90, 151, 255, .6), transparent);
}

@keyframes about-ctaSweep {
	0% { transform: skewX(-14deg) translateX(0); }
	100% { transform: skewX(-14deg) translateX(-60px); }
}

.page-about .cta-in {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 40px;
	flex-wrap: wrap;
}

.page-about #cta .tag {
	display: block;
	font-size: 12.5px;
	font-weight: 700;
	color: var(--blue-light, #5a97ff);
	letter-spacing: .03em;
	margin-bottom: 14px;
}

.page-about #cta h2 {
	font-family: 'Archivo', sans-serif;
	font-size: clamp(28px, 3.2vw, 42px);
	font-weight: 800;
	line-height: 1.12;
	letter-spacing: -.02em;
	margin: 0 0 14px;
	max-width: 700px;
	color: #fff;
}

.page-about #cta p {
	color: rgba(255, 255, 255, .62);
	max-width: 520px;
	font-size: 15px;
	line-height: 1.65;
	margin: 0;
}

.page-about .cta-btns {
	display: flex;
	gap: 14px;
	flex-wrap: wrap;
}

.page-about .cta-btns .btn,
.page-about .cta-btns .btn-ghost-d {
	display: inline-flex;
	align-items: center;
	gap: 12px;
	height: 54px;
	padding: 0 32px;
	border: 1px solid transparent;
	border-radius: var(--radius, 2px);
	font-size: 13px;
	font-weight: 600;
	letter-spacing: .04em;
	line-height: 1;
	white-space: nowrap;
	text-decoration: none;
	cursor: pointer;
	transition: background .25s ease, color .25s ease, border-color .25s ease, transform .3s cubic-bezier(.2, .8, .2, 1);
}

.page-about .cta-btns .btn .chev,
.page-about .cta-btns .btn-ghost-d .chev {
	display: block;
	width: 7px;
	height: 7px;
	flex: none;
	margin: 0 2px 0 0;
	border-top: 1.6px solid currentColor;
	border-right: 1.6px solid currentColor;
	transform: rotate(45deg);
	transition: transform .3s cubic-bezier(.2, .8, .2, 1);
}

.page-about .cta-btns .btn:hover .chev,
.page-about .cta-btns .btn-ghost-d:hover .chev {
	transform: translateX(4px) rotate(45deg);
}

.page-about .cta-btns .btn {
	background: var(--blue, #1f6feb);
	color: #fff;
	border-color: var(--blue, #1f6feb);
	box-shadow: 0 14px 30px -12px rgba(31, 111, 235, .7);
}

.page-about .cta-btns .btn:hover {
	background: var(--blue-deep, #0d2f66);
	border-color: var(--blue-deep, #0d2f66);
	transform: translateY(-2px);
}

.page-about .cta-btns .btn-ghost-d {
	background: rgba(255, 255, 255, .06);
	color: #fff;
	border-color: rgba(255, 255, 255, .55);
}

.page-about .cta-btns .btn-ghost-d:hover {
	background: #fff;
	border-color: #fff;
	color: var(--black, #0b0c0e);
	transform: translateY(-2px);
}

@media (max-width: 700px) {
	.page-about #cta { padding: 72px 0; }
	.page-about .cta-btns { width: 100%; }
	.page-about .cta-btns a {
		flex: 1;
		justify-content: center;
	}
}

/* ---- scroll reveal ---- */
.page-about.js-about .rv {
	opacity: 0;
	transform: translateY(32px);
	transition: opacity .9s ease var(--d, 0s), transform .9s cubic-bezier(.2, .8, .2, 1) var(--d, 0s);
}

.page-about.js-about .rv.rv-left { transform: translateX(-32px); }
.page-about.js-about .rv.rv-scale { transform: scale(.96) translateY(20px); }
.page-about.js-about .rv.in {
	opacity: 1;
	transform: none;
}

@media (prefers-reduced-motion: reduce) {
	.page-about.js-about .rv {
		opacity: 1;
		transform: none;
		transition: none;
	}
	.page-about #cta::before { animation: none; }
}