.banner-wrap {
	background: url('/frontend/web/image/product/energy/banner.png') no-repeat center;
	background-size: cover;
}

.banner-wrap .banner>h1 {
	text-align: left;
	color: #262626;
	font-size: 32px;
	line-height: 1.4;
	font-weight: bold;
	margin-bottom: 20px;
}

.banner-wrap .banner>h3 {
	text-align: left;
	color: rgba(137, 142, 156, 1);
	font-size: 16px;
	line-height: 1.8;
}

.section-title {
	text-align: center;
	font-size: 40px;
	color: #262626;
	margin-bottom: 80px;
}

.tongdian .desc h2 {
	margin-top: 0;
}

.tongdian {
	padding-top: 100px;
	padding-bottom: 60px;
}

.tongdian .desc .dditem {
	width: 450px;
	box-sizing: border-box;
	margin-bottom: 20px;
	padding: 25px 40px;
	border-radius: 8px;
	cursor: pointer;
	background: #fff;
	transition: all 0.3s;
}

.tongdian .desc .dditem.active {
	box-shadow: 0px 0px 20px 5px rgba(0, 0, 0, 0.08);
}

.tongdian .desc .dditem h4 {
	margin-bottom: 10px;
}

.tongdian .desc .dditem h4 span:first-child {
	display: inline-block;
	margin-right: 16px;
	width: 30px;
	height: 30px;
	text-align: center;
	font-size: 16px;
	line-height: 30px;
	color: #262626;
	border: 1px solid #262626;
	border-radius: 15px;
	float: left;
}

.tongdian .desc .dditem.active h4 span:first-child {
	color: #fff;
	border: none;
	background: url('/frontend/web/image/product/index/num_ac_bg.png') no-repeat top left;
}

.tongdian .desc .dditem.active p {
	display: block;
	margin-left: 46px;
	margin-top: 10px;
}

.tongdian .desc .dditem p {
	display: none;
	font-size: 14px;
	color: #8c8c8c;
	line-height: 1.6;
}

.tongdian .r-img {
	float: right;
	margin-top: -30px;
}

.tongdian .r-img img {
	max-width: 450px;
	margin-left: 80px;
}


/* part2 8040威尼斯官网注册智能能效设备管理平台 */
.part2-platform {
	padding: 100px 0 80px;
	width: 100%;
	overflow: hidden;
}

.part2-main-title {
	text-align: center;
	font-size: 40px;
	color: #262626;
	margin-bottom: 24px;
}

.part2-subtitle {
	text-align: center;
	font-size: 16px;
	color: #8c8c8c;
	margin-bottom: 60px;
	line-height: 1.8;
	letter-spacing: 4px;
}

.platform-wrapper {
	display: flex;
	align-items: center;
	justify-content: flex-end;
	gap: 60px;
	width: 1200px;
	margin: 80px auto 0 auto;
}

.platform-wrapper-inner {
	display: flex;
	align-items: center;
	flex: 0 0 auto;
	margin-right: auto;
	padding-right: 40px;
}

.platform-features {
	max-width: 480px;
}

.feature-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 40px 40px;
}

/* .feature-item:nth-child(5),
.feature-item:nth-child(6) {
	border-bottom: 1px dashed rgba(51, 170, 255, 0.3);
	padding-bottom: 24px;
} */

.feature-item-highlight span {
	background: linear-gradient(to right, rgba(51, 170, 255, 0.5), transparent) bottom no-repeat;
	background-size: 60% 2px;
	padding-bottom: 2px;
}

.feature-item {
	display: flex;
	align-items: center;
	gap: 12px;
	font-size: 16px;
	color: #262626;
}

.feature-icon {
	width: 24px;
	height: 24px;
	flex-shrink: 0;
	object-fit: contain;
}

.platform-video {
	flex: 0 0 auto;
	min-width: 720px;
	height: 320px;
	overflow: hidden;
	position: relative;
	border: 3px solid #fff;
	border-radius: 12px;
	aspect-ratio: 16/9;
	margin-right: -60px;
}

.platform-video video {
	width: 100%;
	max-width: none;
	height: 100%;
	display: block;
	border-radius: 12px;
	object-fit: cover;
	object-position: left center;
}


/* part3 数智化运维 */
.part3-operation {
	padding: 100px 0;
}

.part3-operation .section-title {
	margin-bottom: 60px;
}

.operation-list {
	display: flex;
	flex-direction: column;
	gap: 50px;
}

.operation-row {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 60px;
}

.operation-row-text-left .operation-content {
	order: 1;
}

.operation-row-text-left .operation-img-wrap {
	order: 2;
}

.operation-row-text-right .operation-img-wrap {
	order: 1;
}

.operation-row-text-right .operation-content {
	order: 2;
}

.operation-content {
	flex: 1;
	max-width: 480px;
}

.operation-content h4 {
	font-size: 24px;
	color: #262626;
	margin-bottom: 36px;
}

.operation-content p {
	font-size: 16px;
	color: #595959;
	line-height: 1.8;
}

.operation-img-wrap {
	flex: 1;
	max-width: 560px;
	display: flex;
	align-items: center;
	justify-content: center;
}

.operation-img-wrap img {
	max-width: 100%;
	height: auto;
	object-fit: contain;
	border-radius: 12px;
}


/* part4 设备类型 */
.part4-devices {
	background: #fff;
}


.devices-center {
	position: relative;
	text-align: center;
	margin-bottom: 50px;
	min-height: 320px;
	display: flex;
	align-items: center;
	justify-content: center;
}

.devices-circles {
	position: absolute;
	left: 50%;
	top: 50%;
	transform: translate(-48%, -45%);
	width: 200px;
	height: 200px;
}

.devices-circles .circle {
	position: absolute;
	left: 50%;
	top: 50%;
	border-radius: 50%;
	transform: translate(-50%, -50%) scale(0);
	animation: circle-expand 2.5s ease-out infinite;
	z-index: 100;
}

.devices-circles .circle-1 {
	width: 400px;
	height: 400px;
	background: rgba(51, 170, 255, 0.25);
	animation-delay: 0s;
}

.devices-circles .circle-2 {
	width: 580px;
	height: 580px;
	background: rgba(51, 170, 255, 0.12);
	animation-delay: 0.4s;
}

.devices-circles .circle-3 {
	width: 760px;
	height: 760px;
	background: rgba(51, 170, 255, 0.06);
	animation-delay: 0.8s;
}

@keyframes circle-expand {
	0% {
		transform: translate(-50%, -50%) scale(0);
		opacity: 1;
	}

	100% {
		transform: translate(-50%, -50%) scale(1.2);
		opacity: 0;
	}
}

.devices-center-img {
	position: relative;
	z-index: 1;
	max-width: 100%;
	max-height: 400px;
	object-fit: contain;
}

.devices-tags {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: 16px 24px;
}

.devices-tags span {
	display: inline-block;
	padding: 8px 20px;
	background: rgba(239, 249, 255, 1);
	color: #262626;
	font-size: 14px;
	border-radius: 20px;
}


/* CTA */
.part-cta {
	padding: 120px 0;
	text-align: center;
	background: linear-gradient(180deg, rgba(232, 246, 255, 0.6) 0%, #fff 100%);
}

.part-cta .cta-text {
	font-size: 18px;
	color: #262626;
	margin-bottom: 30px;
}

.cta-btn {
	display: inline-block;
	background: #33AAFF;
	color: #fff;
	font-size: 18px;
	padding: 15px 50px;
	border-radius: 30px;
	text-decoration: none;
	box-shadow: 0 4px 15px rgba(51, 170, 255, 0.35);
	transition: all 0.3s;
}

.cta-btn:hover {
	background: #2a99e6;
	transform: translateY(-2px);
}

.cross-bg {
	background: linear-gradient(180deg, rgb(138 206 244 / 10%) 0%, rgba(255, 255, 255, 0.35) 32%);
}

@media (max-width: 1024px) {
	.platform-wrapper-full {
		flex-direction: column;
		align-items: stretch;
	}

	.platform-wrapper-inner {
		padding-right: 0;
	}

	.platform-features {
		max-width: 100%;
	}

	.platform-video {
		min-width: 100%;
		margin-right: 0;
	}

	.platform-video video {
		width: 100%;
	}

	.operation-row {
		flex-direction: column;
		gap: 40px;
	}

	.operation-row-text-right .operation-img-wrap,
	.operation-row-text-right .operation-content {
		order: unset;
	}

	.operation-content {
		max-width: 100%;
	}

	.operation-img-wrap {
		max-width: 100%;
	}
}