/* 解决方案页（对齐 yahe/solutions.html，仅作用于 .site-page-solutions） */

.site-page-solutions {
	--ink: #12161b;
	--graphite: #232b33;
	--steel: #6d7681;
	--steel-line: rgba(255, 255, 255, 0.12);
	--paper: #eff1f1;
	--paper-dim: #e4e7e7;
	--white: #ffffff;
	--navy: #1d6fb8;
	--navy-deep: #123c6e;
	--brand-a: #2e8fd1;
	--brand-b: #14336b;
	--brand-grad: linear-gradient(135deg, var(--brand-a) 0%, var(--navy) 46%, var(--brand-b) 100%);
	--signal: #f2b705;
	--max: 1450px;
	--display: "Oswald", sans-serif;
	--body: "Inter", sans-serif;
	--mono: "IBM Plex Mono", monospace;
	font-family: var(--body);
	color: var(--ink);
	background: var(--paper);
	line-height: 1.55;
}

.site-page-solutions img {
	max-width: 100%;
	display: block;
}

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

.site-page-solutions .wrap {
	max-width: var(--max);
	margin: 0 auto;
	padding: 0 40px;
}

.site-page-solutions h1,
.site-page-solutions h2,
.site-page-solutions h3,
.site-page-solutions h4 {
	font-family: var(--display);
	text-transform: uppercase;
	font-weight: 600;
	letter-spacing: 0.01em;
	line-height: 1.08;
	margin: 0;
}

.site-page-solutions .btn {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	font-family: var(--mono);
	font-size: 13px;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	padding: 15px 28px;
	border: 1.5px solid var(--ink);
	background: transparent;
	color: var(--ink);
	cursor: pointer;
	transition: 0.25s ease;
	white-space: nowrap;
}

.site-page-solutions .btn:hover {
	background: var(--ink);
	color: var(--white);
}

.site-page-solutions .btn.solid {
	background: var(--brand-grad);
	border-color: var(--navy);
	color: var(--white);
}

.site-page-solutions .btn.solid:hover {
	background: var(--navy-deep);
	border-color: var(--navy-deep);
}

/* ---- Page hero ---- */
.site-page-solutions .page-hero {
	position: relative;
	/* banner 延伸至顶栏下，顶部含导航高度（对齐静态页 160px） */
	padding: 160px 0 72px;
	overflow: hidden;
	background-color: var(--ink);
	background-size: cover;
	background-position: center;
}

.site-page-solutions .page-hero::before {
	content: "";
	position: absolute;
	inset: 0;
	background: linear-gradient(90deg, rgba(18, 22, 27, 0.86) 0%, rgba(18, 22, 27, 0.6) 50%, rgba(18, 22, 27, 0.22) 100%);
	z-index: 0;
}

.site-page-solutions .page-hero::after {
	content: "";
	position: absolute;
	right: -140px;
	top: -140px;
	width: 460px;
	height: 460px;
	border-radius: 50%;
	border: 1px solid rgba(255, 255, 255, 0.08);
	z-index: 0;
}

.site-page-solutions .page-hero .crumb {
	font-family: var(--mono);
	font-size: 12px;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: rgba(255, 255, 255, 0.5);
	display: flex;
	gap: 10px;
	align-items: center;
	margin-bottom: 20px;
	position: relative;
	z-index: 1;
	flex-wrap: wrap;
}

.site-page-solutions .page-hero .crumb a {
	color: rgba(255, 255, 255, 0.5);
	transition: 0.2s;
}

.site-page-solutions .page-hero .crumb a:hover {
	color: var(--signal);
}

.site-page-solutions .page-hero .crumb span {
	color: rgba(255, 255, 255, 0.25);
}

.site-page-solutions .page-hero .crumb .now {
	color: var(--signal);
}

.site-page-solutions .page-hero .eyebrow {
	font-family: var(--mono);
	font-size: 12px;
	letter-spacing: 0.18em;
	text-transform: uppercase;
	color: var(--signal);
	display: flex;
	align-items: center;
	gap: 10px;
	margin-bottom: 14px;
	position: relative;
	z-index: 1;
}

.site-page-solutions .page-hero .eyebrow::before {
	content: "";
	width: 26px;
	height: 2px;
	background: var(--signal);
}

.site-page-solutions .page-hero h1 {
	color: var(--white);
	font-size: clamp(30px, 3.8vw, 50px);
	position: relative;
	z-index: 1;
}

.site-page-solutions .page-hero p {
	color: rgba(255, 255, 255, 0.66);
	max-width: 580px;
	margin-top: 16px;
	font-size: 15px;
	position: relative;
	z-index: 1;
}

/* ---- Section heads ---- */
.site-page-solutions .sec-head {
	display: flex;
	justify-content: space-between;
	align-items: flex-end;
	margin-bottom: 56px;
	gap: 30px;
	flex-wrap: wrap;
}

.site-page-solutions .sec-head .eyebrow {
	font-family: var(--mono);
	font-size: 12px;
	letter-spacing: 0.18em;
	text-transform: uppercase;
	color: var(--navy);
	display: flex;
	align-items: center;
	gap: 10px;
	margin-bottom: 14px;
}

.site-page-solutions .sec-head .eyebrow::before {
	content: "";
	width: 26px;
	height: 2px;
	background: var(--signal);
}

.site-page-solutions .sec-head h2 {
	font-size: clamp(26px, 3vw, 40px);
}

.site-page-solutions .sec-head .desc {
	max-width: 430px;
	color: var(--steel);
	font-size: 15px;
	margin: 0;
}

/* ---- Solution cards ---- */
.site-page-solutions #solCards {
	background: var(--white);
	padding: 100px 0;
}

.site-page-solutions .sol-row {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 0;
	border: 1px solid var(--paper-dim);
	margin-bottom: 26px;
	overflow: hidden;
	background: var(--white);
	transition: 0.35s;
}

.site-page-solutions .sol-row:hover {
	box-shadow: 0 18px 40px rgba(0, 0, 0, 0.08);
}

.site-page-solutions .sol-row .img {
	position: relative;
	aspect-ratio: 16 / 10;
	overflow: hidden;
}

.site-page-solutions .sol-row .img img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform 0.6s ease;
}

.site-page-solutions .sol-row:hover .img img {
	transform: scale(1.05);
}

.site-page-solutions .sol-row .img .num {
	position: absolute;
	top: 16px;
	left: 16px;
	background: var(--brand-grad);
	color: var(--white);
	font-family: var(--mono);
	font-size: 12px;
	letter-spacing: 0.1em;
	padding: 8px 14px;
}

.site-page-solutions .sol-row .body {
	padding: 38px 40px;
	display: flex;
	flex-direction: column;
	justify-content: center;
}

.site-page-solutions .sol-row .body h3 {
	font-size: 22px;
	margin-bottom: 14px;
}

.site-page-solutions .sol-row .body p {
	color: var(--steel);
	font-size: 14.5px;
	line-height: 1.7;
	margin: 0 0 24px;
}

.site-page-solutions .sol-row .body .btn {
	align-self: flex-start;
	padding: 12px 24px;
	font-size: 12px;
}

.site-page-solutions .sol-row:nth-child(even) .img {
	order: 2;
}

.site-page-solutions .sol-row:nth-child(even) .body {
	order: 1;
}

/* ---- Applications ---- */
.site-page-solutions #applications {
	background: var(--paper);
	padding: 100px 0;
}

.site-page-solutions .app-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 24px;
}

.site-page-solutions .app-card {
	background: var(--white);
	border: 1px solid var(--paper-dim);
	padding: 34px 30px;
	position: relative;
	overflow: hidden;
	transition: 0.35s;
}

.site-page-solutions .app-card::before {
	content: "";
	position: absolute;
	left: 0;
	top: 0;
	right: 0;
	height: 3px;
	background: var(--brand-grad);
	transform: scaleX(0);
	transform-origin: left;
	transition: 0.4s;
}

.site-page-solutions .app-card:hover::before {
	transform: scaleX(1);
}

.site-page-solutions .app-card:hover {
	box-shadow: 0 16px 34px rgba(0, 0, 0, 0.08);
	transform: translateY(-5px);
}

.site-page-solutions .app-card .ic {
	width: 52px;
	height: 52px;
	border-radius: 12px;
	background: var(--paper);
	display: flex;
	align-items: center;
	justify-content: center;
	margin-bottom: 20px;
}

.site-page-solutions .app-card .ic svg {
	width: 24px;
	height: 24px;
	stroke: var(--navy);
	fill: none;
	stroke-width: 1.7;
}

.site-page-solutions .app-card .ic img {
	width: 24px;
	height: 24px;
	object-fit: contain;
	display: block;
}

.site-page-solutions .app-card h4 {
	font-size: 16px;
	margin-bottom: 10px;
}

.site-page-solutions .app-card p {
	font-size: 13.5px;
	color: var(--steel);
	margin: 0;
}

/* ---- Process ---- */
.site-page-solutions #process {
	background: var(--white);
	padding: 100px 0;
}

.site-page-solutions .proc-steps {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 1px;
	background: var(--paper-dim);
	border: 1px solid var(--paper-dim);
}

.site-page-solutions .proc-step {
	background: var(--white);
	padding: 38px 30px;
	position: relative;
	transition: 0.35s;
}

.site-page-solutions .proc-step:hover {
	background: var(--ink);
}

.site-page-solutions .proc-step .n {
	font-family: var(--mono);
	font-size: 13px;
	color: var(--signal);
	display: block;
	margin-bottom: 16px;
}

.site-page-solutions .proc-step h4 {
	font-size: 16px;
	margin-bottom: 10px;
}

.site-page-solutions .proc-step p {
	font-size: 13.5px;
	color: var(--steel);
	margin: 0;
	transition: 0.35s;
}

.site-page-solutions .proc-step:hover h4 {
	color: var(--white);
}

.site-page-solutions .proc-step:hover p {
	color: rgba(255, 255, 255, 0.6);
}

.site-page-solutions .proc-step .arrow {
	position: absolute;
	right: 12px;
	top: 34px;
	font-size: 20px;
	color: var(--paper-dim);
}

.site-page-solutions .proc-step:last-child .arrow {
	display: none;
}

/* ---- CTA ---- */
.site-page-solutions #cta {
	background: var(--brand-grad);
	color: var(--white);
	padding: 90px 0;
	text-align: center;
	position: relative;
	overflow: hidden;
}

.site-page-solutions #cta::before {
	content: "";
	position: absolute;
	right: -140px;
	top: -140px;
	width: 480px;
	height: 480px;
	border-radius: 50%;
	border: 1px solid rgba(255, 255, 255, 0.1);
}

.site-page-solutions #cta .wrap {
	position: relative;
	z-index: 1;
}

.site-page-solutions #cta h2 {
	font-size: clamp(26px, 3vw, 40px);
	margin-bottom: 14px;
	color: var(--white);
}

.site-page-solutions #cta p {
	color: rgba(255, 255, 255, 0.7);
	max-width: 480px;
	margin: 0 auto 30px;
	font-size: 15px;
}

.site-page-solutions #cta .btns {
	display: flex;
	gap: 14px;
	justify-content: center;
	flex-wrap: wrap;
}

.site-page-solutions #cta .btn {
	border-color: var(--white);
	color: var(--white);
}

.site-page-solutions #cta .btn:hover {
	background: var(--white);
	color: var(--ink);
}

.site-page-solutions #cta .btn.solid {
	background: rgba(255, 255, 255, 0.14);
	border-color: rgba(255, 255, 255, 0.4);
}

.site-page-solutions #cta .btn.solid:hover {
	background: var(--white);
	color: var(--ink);
	border-color: var(--white);
}

@media (max-width: 1100px) {
	.site-page-solutions .sol-row,
	.site-page-solutions .sol-row:nth-child(even) {
		grid-template-columns: 1fr;
	}

	.site-page-solutions .sol-row .img,
	.site-page-solutions .sol-row:nth-child(even) .img {
		order: 1;
		aspect-ratio: 16 / 9;
	}

	.site-page-solutions .sol-row .body,
	.site-page-solutions .sol-row:nth-child(even) .body {
		order: 2;
		padding: 30px 26px;
	}

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

	.site-page-solutions .proc-steps {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media (max-width: 768px) {
	.site-page-solutions #solCards,
	.site-page-solutions #applications,
	.site-page-solutions #process,
	.site-page-solutions #cta {
		padding: 40px 0;
	}

	.site-page-solutions .sec-head {
		margin-bottom: 28px;
	}

	.site-page-solutions .sol-row .body,
	.site-page-solutions .sol-row:nth-child(even) .body {
		padding: 24px 20px;
	}
}

@media (max-width: 680px) {
	.site-page-solutions .wrap {
		padding: 0 22px;
	}

	.site-page-solutions #solCards,
	.site-page-solutions #applications,
	.site-page-solutions #process,
	.site-page-solutions #cta {
		padding: 32px 0;
	}

	.site-page-solutions .sec-head {
		margin-bottom: 22px;
	}

	.site-page-solutions .app-grid {
		grid-template-columns: 1fr;
	}

	.site-page-solutions .proc-steps {
		grid-template-columns: 1fr;
	}

	.site-page-solutions .proc-step .arrow {
		display: none;
	}
}