/* AI 落地页 ai.html — 与 PC rem 适配一致 */

.page-ai {
	--brand-red: #fe0000;
	--brand-red-dark: #cc0000;
	font-family: "IBMPlexSansSC-Light", "IBM Plex Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
	font-weight: 300;
	background: #fff;
	color: #1a1a1a;
	line-height: 1.5;
}

.page-ai .page-wrapper {
	overflow-x: hidden;
}

.page-ai .container-1200 {
	width: 12rem;
	margin: 0 auto;
	padding-left: 0.24rem;
	padding-right: 0.24rem;
}

.page-ai .btn-primary {
	display: inline-block;
	background: var(--brand-red);
	color: #fff;
	font-weight: 400;
	padding: 0.14rem 0.36rem;
	border-radius: 0.4rem;
	text-decoration: none;
	transition: background 0.25s ease;
	border: none;
	cursor: pointer;
	font-size: 0.17rem;
	letter-spacing: 0.005rem;
}

.page-ai .btn-primary:hover {
	background: var(--brand-red-dark);
}

.page-ai .btn-outline {
	display: inline-block;
	background: transparent;
	border: 0.01rem solid #d4d4d4;
	color: #2c2c2c;
	font-weight: 400;
	padding: 0.14rem 0.36rem;
	border-radius: 0.4rem;
	text-decoration: none;
	transition: border-color 0.2s ease, color 0.2s ease;
	font-size: 0.17rem;
}

.page-ai .btn-outline:hover {
	border-color: var(--brand-red);
	color: var(--brand-red);
}

.page-ai .section {
	padding: 1rem 0;
}

.page-ai .section-sm {
	padding: 0.7rem 0;
}

.page-ai .section-title {
	font-size: 0.44rem;
	font-weight: 300;
	letter-spacing: -0.003rem;
	line-height: 1.25;
	text-align: center;
	margin-bottom: 0.24rem;
	color: #1a1a1a;
}

.page-ai .section-sub {
	text-align: center;
	color: #6b6b6b;
	max-width: 8.2rem;
	margin: 0 auto 0.56rem;
	font-size: 0.2rem;
	font-weight: 300;
	line-height: 1.65;
}

/* 与 app 页合作伙伴模块标题一致（避免被上方 .page-ai .section-title 缩小） */
.page-ai .partners-section .section-title {
	font-size: 0.44rem;
	margin-bottom: 1rem;
	color: #333;
}

.page-ai .grid-3 {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 0.32rem;
}

.page-ai .service-card {
	background: #fff;
	padding: 0.32rem 0.28rem;
	border: 0.01rem solid #efefef;
	transition: border-color 0.2s ease;
}

.page-ai .service-card:hover {
	border-color: var(--brand-red);
}

.page-ai .card-title {
	font-size: 0.24rem;
	font-weight: 400;
	margin-bottom: 0.14rem;
	color: #1a1a1a;
	letter-spacing: -0.002rem;
	line-height: 1.35;
}

.page-ai .card-tags {
	display: flex;
	flex-wrap: wrap;
	gap: 0.08rem;
	margin: 0.14rem 0 0.16rem;
}

.page-ai .tag {
	background: #f8f8f8;
	color: #5a5a5a;
	font-size: 0.14rem;
	padding: 0.05rem 0.14rem;
	border-radius: 0.2rem;
	font-weight: 400;
	letter-spacing: 0.003rem;
}

.page-ai .card-desc {
	color: #5a5a5a;
	margin-bottom: 0.2rem;
	line-height: 1.65;
	font-size: 0.17rem;
	font-weight: 300;
}

.page-ai .card-scene {
	font-size: 0.15rem;
	color: #8a8a8a;
	border-top: 0.01rem solid #f0f0f0;
	padding-top: 0.16rem;
	margin-top: 0.08rem;
	font-weight: 300;
	line-height: 1.55;
}

.page-ai .value-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 0.24rem;
	margin-top: 0.4rem;
}

.page-ai .value-item {
	text-align: center;
	padding: 0.28rem 0.2rem;
	background: #fff;
	border: 0.01rem solid #efefef;
}

.page-ai .value-item h4 {
	font-size: 0.22rem;
	font-weight: 400;
	margin-bottom: 0.12rem;
	letter-spacing: -0.002rem;
	line-height: 1.35;
}

.page-ai .value-item p {
	font-size: 0.16rem;
	color: #6b6b6b;
	font-weight: 300;
	line-height: 1.6;
}

.page-ai .steps {
	display: flex;
	justify-content: space-between;
	gap: 0.24rem;
	flex-wrap: wrap;
}

.page-ai .step {
	flex: 1;
	background: #fff;
	padding: 0.32rem 0.24rem;
	text-align: center;
	border: 0.01rem solid #efefef;
	transition: border-color 0.2s ease;
	min-width: 0;
}

.page-ai .step:hover {
	border-color: var(--brand-red);
}

.page-ai .step-number {
	font-size: 0.36rem;
	font-weight: 300;
	color: var(--brand-red);
	margin-bottom: 0.2rem;
	letter-spacing: -0.005rem;
	line-height: 1.1;
}

.page-ai .step h3 {
	font-size: 0.22rem;
	font-weight: 400;
	margin-bottom: 0.16rem;
	letter-spacing: -0.002rem;
	line-height: 1.35;
}

.page-ai .step-desc {
	font-size: 0.16rem;
	color: #6b6b6b;
	line-height: 1.65;
	font-weight: 300;
}

.page-ai .hero-section {
	position: relative;
	display: flex;
	flex-direction: column;
	color: #fff;
}

.ai-bg {
	position: absolute;
	width: 100%;
	z-index: 1;
}

.page-ai .ai-hero-inner {
	flex: 1;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 0.48rem 0.24rem 0.52rem;
	position: relative;
	z-index: 2;
	width: 100%;
	min-height: 0;
	box-sizing: border-box;
}

/* 仅版心排版，无背景块 */
.page-ai .ai-hero-content {
	width: 100%;
	max-width: 8.6rem;
	margin: 0 auto;
	text-align: center;
}

.page-ai .bg-pure {
	background: #fff;
}

.page-ai .bg-light {
	background: #fcfcfc;
}

.page-ai .hero-badge {
	display: inline-block;
	color: #ff8a8a;
	font-size: 0.15rem;
	font-weight: 500;
	letter-spacing: 0.04rem;
	margin: 0 0 0.22rem;
	line-height: 1.45;
	text-shadow: 0 0.02rem 0.12rem rgba(0, 0, 0, 0.35);
}

.page-ai .ai-hero-title {
	font-size: 0.54rem;
	font-weight: 400;
	letter-spacing: -0.008rem;
	margin: 0 0 0.26rem;
	color: #fff;
	line-height: 1.2;
	text-shadow: 0 0.04rem 0.24rem rgba(0, 0, 0, 0.45);
}

.page-ai .ai-hero-desc {
	font-size: 0.22rem;
	color: rgba(255, 255, 255, 0.92);
	font-weight: 300;
	max-width: 7.6rem;
	margin: 0 auto 0.36rem;
	line-height: 1.55;
	text-shadow: 0 0.02rem 0.14rem rgba(0, 0, 0, 0.55), 0 0.06rem 0.2rem rgba(0, 0, 0, 0.35);
}

.page-ai .ai-hero-actions {
	display: flex;
	gap: 0.18rem;
	justify-content: center;
	flex-wrap: wrap;
	margin-bottom: 0.28rem;
}

.page-ai .ai-hero-content .btn-primary {
	box-shadow: 0 0.04rem 0.16rem rgba(254, 0, 0, 0.35);
}

.page-ai .ai-hero-content .ai-hero-btn-outline {
	border-color: rgba(255, 255, 255, 0.55);
	color: rgba(255, 255, 255, 0.98);
	background: transparent;
}

.page-ai .ai-hero-content .ai-hero-btn-outline:hover {
	border-color: #fff;
	color: #fff;
	background: rgba(255, 255, 255, 0.12);
}

.page-ai .ai-hero-meta {
	margin: 0;
	padding: 0;
	list-style: none;
	display: flex;
	flex-direction: row;
	flex-wrap: wrap;
	justify-content: center;
	align-items: center;
	gap: 0;
	font-size: 0.16rem;
	color: rgba(255, 255, 255, 0.92);
	font-weight: 400;
}

.page-ai .ai-hero-meta li {
	padding: 0;
	line-height: 1.5;
	white-space: nowrap;
	text-shadow: 0 0.02rem 0.12rem rgba(0, 0, 0, 0.6), 0 0.04rem 0.2rem rgba(0, 0, 0, 0.4);
}

.page-ai .ai-hero-meta li + li::before {
	content: "·";
	display: inline-block;
	margin: 0 0.14rem;
	color: rgba(255, 255, 255, 0.45);
	text-shadow: none;
	font-weight: 300;
}

@media (max-width: 1024px) {
	.page-ai .grid-3 {
		grid-template-columns: repeat(2, 1fr);
	}

	.page-ai .value-grid {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media (max-width: 768px) {
	.page-ai .grid-3 {
		grid-template-columns: 1fr;
	}

	.page-ai .value-grid {
		grid-template-columns: 1fr;
	}

	.page-ai .steps {
		flex-direction: column;
	}

	.page-ai .section-title {
		font-size: 0.36rem;
	}

	.page-ai .partners-section .section-title {
		font-size: 0.38rem;
	}

	.page-ai .section-sub {
		font-size: 0.17rem;
	}

	.page-ai .section {
		padding: 0.6rem 0;
	}

	.page-ai .ai-hero-inner {
		padding: 0.36rem 0.2rem 0.44rem;
	}

	.page-ai .ai-hero-content {
		max-width: none;
	}

	.page-ai .hero-badge {
		font-size: 0.13rem;
		margin-bottom: 0.16rem;
	}

	.page-ai .ai-hero-title {
		font-size: 0.4rem;
		margin-bottom: 0.18rem;
	}

	.page-ai .ai-hero-desc {
		font-size: 0.17rem;
		margin-bottom: 0.28rem;
	}

	.page-ai .ai-hero-actions {
		margin-bottom: 0.22rem;
	}

	.page-ai .ai-hero-meta {
		font-size: 0.14rem;
	}

	.page-ai .ai-hero-meta li {
		white-space: normal;
	}

	.page-ai .card-title {
		font-size: 0.2rem;
	}

	.page-ai .card-desc {
		font-size: 0.15rem;
	}

	.page-ai .card-scene {
		font-size: 0.14rem;
	}

	.page-ai .tag {
		font-size: 0.13rem;
	}

	.page-ai .value-item h4 {
		font-size: 0.18rem;
	}

	.page-ai .value-item p {
		font-size: 0.14rem;
	}

	.page-ai .step-number {
		font-size: 0.3rem;
	}

	.page-ai .step h3 {
		font-size: 0.18rem;
	}

	.page-ai .step-desc {
		font-size: 0.14rem;
	}
}