/* 以 1920px 设计稿为基准缩放留白，内容区使用自然高度。 */
.cases-page {
	--case-unit: clamp(0.5px, 0.052083333vw, 1px);
	--case-gap: calc(20 * var(--case-unit));
	background: #0a0a0a;
	font-size: clamp(16px, 1.25vw, 24px);
	line-height: 1.25;
}

.cases-shell,
.wintime-cases-page .site-header__inner,
.wintime-cases-page .site-footer__inner {
	width: min(calc(100% - 2 * var(--wintime-page-padding)), 1440px);
	margin-inline: auto;
	padding-inline: 0;
}

.cases-page p,
.cases-page h1,
.cases-page h2,
.cases-page h3,
.cases-page h4,
.cases-page ul {
	margin-block: 0;
}

/* 标题保留设计稿的大写样式，文案数据使用审核稿原文。 */
.cases-hero h1,
.cases-category h2,
.case-services h4,
.cases-cta h2 {
	text-transform: uppercase;
}

.cases-section--dark {
	background: #0a0a0a;
	color: #ffffff;
}

.cases-section--light {
	background: #ffffff;
	color: #111111;
}

.cases-page a:focus-visible,
.case-gallery:focus-visible,
.case-gallery button:focus-visible,
.case-video:focus-visible {
	outline: 3px solid #4b96ff;
	outline-offset: 6px;
}

.cases-hero {
	min-height: calc(900 * var(--case-unit));
	background: #030303 var(--cases-hero-image) center / cover no-repeat;
	background-position: calc(50% + 110 * var(--case-unit)) calc(50% + 20 * var(--case-unit));
}

.cases-hero__inner {
	padding-block: calc(227 * var(--case-unit)) calc(150 * var(--case-unit));
}

.cases-hero h1 {
	font-size: clamp(40px, 3.125vw, 60px);
	font-weight: 400;
	letter-spacing: -0.02em;
	line-height: 1.2;
}

.cases-hero__description,
.cases-hero__services {
	max-width: 800px;
	line-height: 1.5;
}

.cases-page .cases-hero__description {
	margin-top: calc(31 * var(--case-unit));
}

.cases-page .cases-hero__services {
	margin-top: calc(75 * var(--case-unit));
}

/* 品牌标识保留素材自身的透明边距。 */
.cases-clients {
	padding-block: calc(127 * var(--case-unit)) calc(180 * var(--case-unit));
}

.cases-clients__grid {
	display: grid;
	grid-template-columns: minmax(0, 310fr) minmax(0, 720fr) minmax(0, 410fr);
	grid-auto-rows: calc(162 * var(--case-unit));
	align-items: center;
	justify-items: center;
	row-gap: calc(36 * var(--case-unit));
	padding: 0;
	list-style: none;
}

.cases-clients__grid li {
	display: grid;
	place-items: center;
	max-width: 100%;
}

.cases-clients__grid img {
	width: auto;
	max-width: 100%;
	max-height: calc(162 * var(--case-unit));
	object-fit: contain;
}

.cases-category h2 {
	background: linear-gradient(90deg, #4b96ff, #a0d2fa, #69b9fa);
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent;
	font-size: clamp(32px, 2.604167vw, 50px);
	font-weight: 700;
	line-height: 1.2;
	-webkit-text-fill-color: transparent;
}

.cases-category p {
	max-width: 900px;
	margin-top: calc(40 * var(--case-unit));
}

.cases-category--right {
	text-align: right;
}

.cases-category--right p {
	margin-left: auto;
}

.case-brand {
	display: flex;
	justify-content: center;
	line-height: 0;
}

.case-brand img {
	max-width: 100%;
	height: auto;
}

.case-services h4 {
	font-size: clamp(20px, 1.5625vw, 30px);
	font-weight: 700;
	line-height: 1.2;
}

.case-services ul {
	display: grid;
	gap: calc(30 * var(--case-unit));
	margin-top: calc(44 * var(--case-unit));
	padding: 0;
	list-style: none;
}

.case-description {
	text-align: justify;
	text-align-last: right;
}

.case-wide-image {
	width: 100%;
	height: auto;
}

.case-website-link a {
	color: inherit;
	text-decoration: none;
}

.case-website-link a:hover {
	text-decoration: underline;
	text-underline-offset: 5px;
}

/* 网站开发：Isofast Energia。 */
.case-ie {
	padding-block: calc(70 * var(--case-unit)) calc(90 * var(--case-unit));
}

.case-ie .case-brand {
	margin-block: calc(150 * var(--case-unit)) calc(130 * var(--case-unit));
}

.case-brand--ie img {
	width: calc(400 * var(--case-unit));
}

.case-ie__overview {
	display: grid;
	grid-template-columns: minmax(0, 870fr) minmax(0, 550fr);
	gap: var(--case-gap);
	align-items: start;
	margin-bottom: calc(78 * var(--case-unit));
}

.case-ie__mockup {
	width: calc(100% + 30 * var(--case-unit));
	max-width: none;
	height: auto;
	aspect-ratio: 900 / 760;
	margin-top: calc(-20 * var(--case-unit));
	margin-left: calc(-30 * var(--case-unit));
}

.case-ie__details {
	text-align: right;
}

.case-ie__details .case-description {
	margin-top: calc(60 * var(--case-unit));
}

.case-ie .case-website-link {
	margin-top: calc(44 * var(--case-unit));
	text-align: center;
}

/* 网站开发：MAKA 的左右交错展示。 */
.case-maka {
	padding-block: calc(100 * var(--case-unit)) calc(130 * var(--case-unit));
}

.case-maka .case-brand {
	margin-bottom: calc(76 * var(--case-unit));
}

.case-brand--maka img {
	width: calc(358 * var(--case-unit));
}

.case-maka__first,
.case-maka__second {
	display: grid;
	align-items: center;
}

.case-maka__first {
	grid-template-columns: minmax(0, 600fr) minmax(0, 740fr);
	gap: calc(100 * var(--case-unit));
}

.case-maka__services {
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	align-self: stretch;
	gap: 40px;
}

.case-maka__first > img,
.case-maka__second > img {
	width: 100%;
	height: auto;
	aspect-ratio: 740 / 480;
	object-fit: cover;
}

.case-maka__second {
	grid-template-columns: minmax(0, 740fr) minmax(0, 550fr);
	gap: calc(150 * var(--case-unit));
	margin-top: calc(56 * var(--case-unit));
}

/* 社交媒体：OYA 视频与图片轮播。 */
.case-oya {
	padding-block: calc(100 * var(--case-unit)) calc(140 * var(--case-unit));
}

.case-oya .cases-category p {
	margin-top: calc(50 * var(--case-unit));
}

.case-oya .case-brand {
	margin-block: calc(150 * var(--case-unit)) calc(80 * var(--case-unit));
}

.case-brand--oya img {
	width: calc(305 * var(--case-unit));
}

.case-video {
	display: block;
	width: 100%;
	height: auto;
	aspect-ratio: 1440 / 690;
	background: #0a0a0a;
	object-fit: cover;
}

.case-oya__social {
	display: grid;
	grid-template-columns: minmax(0, 890fr) minmax(0, 450fr);
	align-items: center;
	gap: calc(100 * var(--case-unit));
	margin-top: calc(56 * var(--case-unit));
}

.case-oya__social .case-services {
	text-align: right;
}

.case-gallery {
	position: relative;
	min-width: 0;
}

.case-gallery__viewport {
	position: relative;
	aspect-ratio: var(--case-gallery-ratio);
	overflow: hidden;
	background: #171717;
}

.case-gallery__slide {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.case-gallery__slide[hidden],
.case-gallery__controls[hidden] {
	display: none;
}

.case-gallery__controls {
	position: absolute;
	right: 0;
	bottom: calc(30 * var(--case-unit));
	left: 0;
	display: flex;
	justify-content: space-around;
	gap: 20px;
}

.case-gallery__controls button {
	min-height: 44px;
	padding: 6px 14px;
	border: 0;
	background: transparent;
	color: #ffffff;
	font-size: inherit;
	font-weight: 700;
	line-height: 1.2;
	text-decoration: underline;
	text-underline-offset: 5px;
	text-shadow: 0 1px 6px #000000;
	cursor: pointer;
}

.case-gallery__controls button:hover {
	color: #a0d2fa;
}

/* 社交媒体：MODO。 */
.case-modo {
	padding-block: calc(180 * var(--case-unit)) calc(170 * var(--case-unit));
}

.case-modo .case-brand {
	margin-bottom: calc(105 * var(--case-unit));
}

.case-brand--modo img {
	width: calc(475 * var(--case-unit));
}

.case-modo__social {
	display: grid;
	grid-template-columns: minmax(0, 575fr) minmax(0, 865fr);
	align-items: center;
	margin-top: calc(80 * var(--case-unit));
}

.case-modo__profile {
	width: 100%;
	height: auto;
}

/* 活动与展台：OPPO 拼接布局。 */
.case-oppo {
	padding-block: calc(150 * var(--case-unit)) calc(110 * var(--case-unit));
}

.case-oppo .cases-category p {
	margin-top: calc(44 * var(--case-unit));
}

.case-oppo .case-brand {
	margin-block: calc(190 * var(--case-unit)) calc(110 * var(--case-unit));
}

.case-brand--oppo img {
	width: calc(470 * var(--case-unit));
}

.case-oppo__top,
.case-oppo__bottom,
.case-h3c__gallery,
.case-apollo__details,
.case-yulin__top,
.case-yulin__bottom {
	display: grid;
	gap: var(--case-gap);
	align-items: stretch;
}

.case-oppo__top {
	grid-template-columns: minmax(0, 870fr) minmax(0, 550fr);
}

.case-oppo__bottom {
	grid-template-columns: minmax(0, 550fr) minmax(0, 300fr) minmax(0, 550fr);
	margin-top: var(--case-gap);
}

.case-oppo__top img,
.case-oppo__bottom img,
.case-h3c__gallery img,
.case-apollo__details img,
.case-yulin__top img,
.case-yulin__bottom img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.case-oppo__services {
	display: flex;
	flex-direction: column;
	justify-content: center;
	gap: calc(30 * var(--case-unit));
	padding: 0;
	list-style: none;
	text-align: center;
}

/* H3C 与 APOLLO 共用白色底。 */
.case-h3c {
	padding-block: calc(160 * var(--case-unit)) calc(120 * var(--case-unit));
}

.case-brand--h3c img {
	width: calc(331 * var(--case-unit));
}

.case-caption {
	text-align: center;
}

.case-h3c .case-caption {
	margin-block: calc(50 * var(--case-unit)) calc(80 * var(--case-unit));
}

.case-h3c__gallery {
	grid-template-columns: minmax(0, 655fr) minmax(0, 765fr);
}

.case-h3c__details {
	display: grid;
	grid-template-rows: minmax(0, 288fr) minmax(0, 537fr);
	gap: var(--case-gap);
	min-height: 0;
}

.case-apollo {
	padding-block: calc(45 * var(--case-unit)) calc(110 * var(--case-unit));
}

.case-brand--apollo img {
	width: calc(622 * var(--case-unit));
}

.case-apollo .case-caption {
	margin-block: calc(45 * var(--case-unit)) calc(80 * var(--case-unit));
}

.case-apollo__details {
	grid-template-columns: minmax(0, 864fr) minmax(0, 546fr);
	gap: calc(30 * var(--case-unit));
	margin-top: calc(24 * var(--case-unit));
}

/* 榆林羊绒：品牌活动标题与四图组合。 */
.case-yulin {
	padding-block: calc(100 * var(--case-unit)) calc(140 * var(--case-unit));
}

.case-yulin__heading {
	text-align: center;
}

.case-yulin h3 {
	font-size: clamp(25px, 2.083333vw, 40px);
	line-height: 1.2;
}

.case-yulin .case-yulin__subtitle {
	margin-top: calc(18 * var(--case-unit));
	font-size: clamp(20px, 1.5625vw, 30px);
	font-weight: 600;
	line-height: 1.2;
}

.case-yulin .case-caption {
	margin-block: calc(32 * var(--case-unit)) calc(80 * var(--case-unit));
}

.case-yulin__top {
	grid-template-columns: minmax(0, 864fr) minmax(0, 547fr);
	gap: calc(29 * var(--case-unit));
}

.case-yulin__bottom {
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: calc(32 * var(--case-unit));
	margin-top: calc(32 * var(--case-unit));
}

/* 巴黎眼镜展：一张主图搭配可滚动的五列缩略图。 */
.case-paris {
	padding-block: calc(100 * var(--case-unit)) calc(110 * var(--case-unit));
}

.case-paris__heading {
	text-align: center;
}

.case-paris h3 {
	font-size: clamp(25px, 2.083333vw, 40px);
	line-height: 1.2;
	scroll-margin-top: 120px;
}

.case-paris .case-caption {
	margin-block: calc(40 * var(--case-unit)) calc(70 * var(--case-unit));
}

.case-gallery__thumbnail-nav {
	position: relative;
	margin-top: var(--case-gap);
}

.case-gallery__thumbnail-nav[hidden] {
	display: none;
}

.case-gallery__thumbnails {
	position: relative;
	display: flex;
	gap: var(--case-gap);
	overflow-x: auto;
	scrollbar-width: none;
}

.case-gallery__thumbnails::-webkit-scrollbar {
	display: none;
}

.case-gallery__thumbnail {
	flex: 0 0 calc((100% - 4 * var(--case-gap)) / 5);
	min-width: 0;
	height: calc(200 * var(--case-unit));
	padding: 0;
	border: 2px solid transparent;
	background: #171717;
	cursor: pointer;
}

.case-gallery__thumbnail img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.case-gallery__thumbnail[aria-pressed="true"] {
	border-color: #69b9fa;
}

.case-gallery__thumbnail:focus-visible {
	outline-offset: -5px;
}

.case-gallery__thumbnail-arrow {
	position: absolute;
	top: 50%;
	z-index: 1;
	width: 44px;
	height: 44px;
	padding: 0;
	border: 0;
	background: transparent;
	color: #333333;
	transform: translateY(-50%);
	cursor: pointer;
}

.case-gallery__thumbnail-arrow::before {
	position: absolute;
	inset: 4px;
	border-radius: 50%;
	background: rgba(190, 190, 190, 0.8);
	content: "";
}

.case-gallery__thumbnail-arrow > span[aria-hidden] {
	position: relative;
	font-size: 38px;
	line-height: 1;
}

.case-gallery__thumbnail-arrow--previous {
	left: -22px;
}

.case-gallery__thumbnail-arrow--next {
	right: -22px;
}

.case-gallery__thumbnail-arrow:disabled {
	opacity: 0.55;
	cursor: default;
}

/* 项目咨询入口复用全站蓝色品牌素材。 */
.cases-cta {
	border-block: 1px solid rgba(255, 255, 255, 0.6);
	background: #000000 url("../../home-material/689a943b-0c69-453c-bd81-8fbbfc787dc9.png") calc(50% + 180 * var(--case-unit)) calc(50% + 60 * var(--case-unit)) / auto 190% no-repeat;
	color: #ffffff;
}

.cases-cta__inner {
	display: flex;
	align-items: center;
	min-height: calc(500 * var(--case-unit));
	padding-block: 60px;
}

.cases-cta__inner > div {
	margin-left: calc(140 * var(--case-unit));
}

.cases-cta h2 {
	font-size: clamp(32px, 2.604167vw, 50px);
	line-height: 1.2;
}

.cases-cta .cases-cta__description {
	max-width: 650px;
	margin-top: calc(24 * var(--case-unit));
	line-height: 1.5;
}

.cases-cta a {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: min(100%, calc(300 * var(--case-unit)));
	min-height: 58px;
	margin-top: calc(34 * var(--case-unit));
	padding: 8px 28px;
	border: 2px solid #69b9fa;
	border-radius: 10px;
	background: #080808;
	font-size: clamp(22px, 1.875vw, 36px);
	text-decoration: none;
}

.cases-cta a:hover {
	background: #122239;
}

@media (max-width: 1000px) {
	.case-ie__overview,
	.case-maka__first,
	.case-maka__second,
	.case-oya__social,
	.case-modo__social {
		grid-template-columns: minmax(0, 1fr);
		gap: 40px;
	}

	.case-ie__mockup {
		justify-self: center;
		width: min(100%, 760px);
		aspect-ratio: 1;
		margin: 0;
	}

	.case-ie__details,
	.case-oya__social .case-services {
		text-align: left;
	}

	.case-description {
		text-align: left;
		text-align-last: auto;
	}

	.case-maka__first > img {
		grid-row: 1;
	}

	.case-maka__second {
		margin-top: 56px;
	}

	.case-modo__profile {
		justify-self: center;
		max-width: 760px;
	}

	.case-oppo__bottom {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.case-oppo__services {
		grid-column: 1 / -1;
		grid-row: 2;
		padding-top: 20px;
	}
}

@media (max-width: 782px) {
	.cases-hero {
		min-height: 680px;
		background-image: linear-gradient(90deg, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.12)), var(--cases-hero-image);
		background-position: 58% center;
	}

	.cases-hero__inner {
		padding-block: 140px 64px;
	}

	.cases-hero h1 {
		font-size: clamp(34px, 8.5vw, 52px);
	}

	.cases-hero__description,
	.cases-hero__services {
		max-width: 600px;
	}

	.cases-page .cases-hero__services {
		margin-top: 40px;
	}

	.cases-clients {
		padding-block: 56px 70px;
	}

	.cases-clients__grid {
		grid-template-columns: repeat(3, minmax(0, 1fr));
		grid-auto-rows: 72px;
		gap: 24px;
	}

	.cases-clients__grid img {
		max-height: 64px;
	}

	.cases-category,
	.cases-category--right {
		text-align: left;
	}

	.cases-category h2 {
		font-size: clamp(27px, 6.2vw, 38px);
		overflow-wrap: anywhere;
	}

	.cases-category p {
		margin-top: 26px;
	}

	.case-ie,
	.case-maka,
	.case-oya,
	.case-modo,
	.case-oppo,
	.case-h3c,
	.case-apollo,
	.case-yulin,
	.case-paris {
		padding-block: 56px;
	}

	.case-ie .case-brand,
	.case-oya .case-brand,
	.case-oppo .case-brand {
		margin-block: 60px 40px;
	}

	.case-maka .case-brand,
	.case-modo .case-brand {
		margin-bottom: 40px;
	}

	.case-services ul {
		gap: 18px;
		margin-top: 24px;
	}

	.case-ie__details .case-description {
		margin-top: 32px;
	}

	.case-video {
		aspect-ratio: 16 / 9;
	}

	.case-oya__social,
	.case-modo__social {
		margin-top: 36px;
	}

	.case-gallery__controls {
		bottom: 8px;
	}

	.case-gallery__controls button {
		font-size: 14px;
	}

	.case-oppo__top,
	.case-h3c__gallery {
		grid-template-columns: minmax(0, 1fr);
	}

	.case-oppo__top img,
	.case-oppo__bottom img,
	.case-h3c__gallery img,
	.case-apollo__details img,
	.case-yulin__top img,
	.case-yulin__bottom img {
		height: auto;
	}

	.case-h3c__details {
		grid-template-rows: auto auto;
	}

	.case-h3c .case-caption,
	.case-apollo .case-caption,
	.case-yulin .case-caption {
		margin-block: 28px 36px;
	}

	.case-yulin h3 {
		font-size: clamp(24px, 5.5vw, 32px);
	}

	.case-yulin .case-yulin__subtitle {
		font-size: 19px;
	}

	.case-paris h3 {
		font-size: clamp(24px, 5.5vw, 32px);
	}

	.case-paris .case-caption {
		margin-block: 28px 36px;
	}

	.case-gallery__thumbnail {
		flex-basis: calc((100% - 2 * var(--case-gap)) / 3);
		height: clamp(72px, 18vw, 120px);
	}

	.case-gallery__thumbnail-arrow--previous {
		left: -12px;
	}

	.case-gallery__thumbnail-arrow--next {
		right: -12px;
	}

	.cases-cta {
		background-position: 60% center;
		background-size: auto 150%;
	}

	.cases-cta__inner {
		min-height: 380px;
	}

	.cases-cta__inner > div {
		margin-left: 0;
	}

	.cases-cta a {
		min-width: 220px;
	}
}