/* chixu */
.sust {
	width: 100%;
	height: 100%;
	position: relative;
	overflow: hidden;
}

.subanner {
	width: 100%;
	height: 100vh;
	position: relative;
}

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

.subanner-text {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	width: 70%;
	text-align: center;
}

.subanner-text h3 {
	margin-bottom: 35px;
	font-weight: bold;
	font-size: 55px;
	line-height: 55px;
	color: #FFFFFF;
	font-family: 'Montserrat';
}

.subanner-text p {
	font-weight: 500;
	font-size: 20px;
	line-height: 30px;
	color: #FFFFFF;
	font-family: 'Montserrat';
}

.our {
	width: 100%;
	padding-top: 131px;
	padding-bottom: 131px;
	background: #FFFFFF;
}

.ourbanner {
	width: 1400px;
	height: 697px;
	margin: auto;
	display: flex;
	justify-content: center;
	align-items: center;
	position: relative;
}

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

.ourbanner-text {
	position: absolute;
	left: 50%;
	top: 50%;
	transform: translate(-50%, -50%);
	width: 79%;
}

.ourh4 {
	font-weight: bold;
	font-size: 55px;
	line-height: 55px;
	margin-bottom: 35px;
	color: #FFFFFF;
	text-align: center;
	font-family: 'Montserrat';
}

.ourp {
	font-weight: 500;
	font-size: 17px;
	line-height: 30px;
	margin-bottom: 45px;
	color: #FFFFFF;
	text-align: center;
	font-family: 'Montserrat';
}

.ourx {
	width: 122px;
	height: 5px;
	background: #FFFFFF;
	border: 1px solid #FFFFFF;
	color: #FFFFFF;
	margin: auto;
}

.our-p {
	margin-top: 44px;
	text-align: center;
}

.our-p p {
	font-weight: 600;
	font-size: 20px;
	line-height: 35px;
	color: #FFFFFF;
	font-family: 'Montserrat';
}

.env {
	width: 100%;
	background: #F5F5F5;
	padding-top: 94px;
	padding-bottom: 142px;
}

.env-content {
	width: 1112px;
	margin: auto;
	text-align: center;
}

.env-content h3 {
	font-size: 55px;
	line-height: 55px;
	color: #000000;
	font-weight: bold;
	margin-bottom: 35px;
	font-family: 'Montserrat';
}

.env-content p {
	font-size: 17px;
	line-height: 30px;
	color: #000000;
	font-weight: 500;
	margin-bottom: 93px;
	font-family: 'Montserrat';
}

.env-icon {
	display: flex;
	justify-content: space-between;
}

.env-item {
	width: 180px;
	height: 180px;
	background: #FFFFFF;
	border-radius: 10px;
	display: flex;
	justify-content: center;
	align-items: center;
}

.envi {
	position: relative;
	cursor: pointer;
}

.envi img {
	width: 100%;
	height: 100%;
	position: absolute;
	top: 0;
	left: 0;
}

.envi img:last-child {
	display: none;
}

.env-item:hover {
	background: #009173;
}

.env-item:hover .envi img:last-child {
	display: block;
}

.env-item:hover .envi img:first-child {
	display: none;
}

.envi1 {
	width: 104px;
	height: 108px;
}

.envi2 {
	width: 88px;
	height: 70px;
}

.envi3 {
	width: 78px;
	height: 93px;
}

.envi4 {
	width: 106px;
	height: 61px;
}

.sust .smart {
	width: 100%;
	height: 100%;
	position: relative;
	line-height: 0;
}

.sust .smart img {
	width: 100%;
	object-fit: cover;
	height: auto;
}

.sust .smart-content {
	position: absolute;
	top: 15%;
	left: 50%;
	transform: translateX(-50%);
	text-align: center;
	width: 1400px;
}

.sust .smart-content h3 {
	margin-bottom: 63px;
	font-size: 55px;
	line-height: 55px;
	color: #FFFFFF;
	font-weight: bold;
	font-family: 'Montserrat';
}

.sust .smart-content p {
	font-size: 17px;
	line-height: 30px;
	color: #FFFFFF;
	font-weight: 500;
	font-family: 'Montserrat';
	margin-bottom: 0px;
}

.co {
	width: 100%;
	height: 100%;
	position: relative;
	line-height: 0;
}

.co img {
	width: 100%;
	height: auto;
	object-fit: cover;
}

.co-content {
	width: 1164px;
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	text-align: center;
}

.co-content h3 {
	margin-bottom: 63px;
	font-size: 55px;
	line-height: 55px;
	color: #FFFFFF;
	font-weight: bold;
	font-family: 'Montserrat';
}

.co-content p {
	font-size: 17px;
	line-height: 30px;
	color: #FFFFFF;
	font-weight: 500;
	font-family: 'Montserrat';
}

.lx {
	width: 100%;
	height: 150px;
	background: #ECECEC;
}

.lx-content {
	width: 1162px;
	height: 100%;
	margin: auto;
	display: flex;
	align-items: center;
}

.lx-y {
	margin-right: 77px;
	width: 100px;
	height: 100px;
	border-radius: 50%;
	background: linear-gradient(to bottom, #00AAE6 0%, #009173 100%);
	display: flex;
	justify-content: center;
	align-items: center;
}

.lx-y img {
	width: 87px;
	height: 11px;
}

.lx-text h5 {
	font-size: 20px;
	line-height: 35px;
	color: #000000;
	font-weight: bold;
	font-family: 'Montserrat';
}

.lx-text p {
	margin-bottom: 10px;
	font-size: 17px;
	line-height: 35px;
	color: #000000;
	font-weight: 500;
	font-family: 'Montserrat';
}

.lx-text a {
	width: fit-content;
	height: 31px;
	border: 1px solid #000000;
	font-size: 14px;
	line-height: 14px;
	color: #000000;
	font-weight: 400;
	display: flex;
	justify-content: center;
	align-items: center;
	border-radius: 50px;
	cursor: pointer;
	font-family: 'Montserrat';
	padding: 0 5px;
}

@media (max-width: 1440px) {

	.ourbanner,
	.smart-content,
	.lx-content {
		width: 1140px;
	}
}

@media (max-width:1140px) {

	.ourbanner,
	.smart-content,
	.lx-content {
		width: 100%;
	}

	.subanner {
		height: auto;
		aspect-ratio: 15 / 19;
	}

	.env {
		padding-top: 34px;
		padding-bottom: 54px;
	}

	.env-content p {
		margin-bottom: 34px;
	}

	.ourbanner {
		flex-direction: column;
	}

	.ourbanner,
	.env-content {
		width: 100%;
		height: 100%;
	}

	.sust .smart-content,
	.co-content,
	.subanner-text,
	.ourbanner-text {
		position: relative;
		width: 90%;
		margin: auto;
		padding-top: 30px;
		padding-bottom: 30px;
		top: 0;
		left: 0;
		transform: translateX(0);
	}

	.sust .smart-content p,
	.sust .smart-content h3,
	.sust .co-content p,
	.sust .co-content h3,
	.sust .subanner-text h3,
	.sust .subanner-text p,
	.sust .ourbanner-text p,
	.sust .ourbanner-text h3 {
		color: #000000;
	}

	.sust .smart img {
		min-height: 50vh;
	}

	.co img {
		min-height: 50vh;
	}

	.our {
		padding-top: 30px;
		padding-bottom: 30px;
	}

	.ourbanner img {
		width: 100%;
		height: auto;
		object-fit: cover;
	}

	.subanner-text {
		width: 95%;
	}

	.our-p {
		margin-top: 0;
	}

	.env-icon {
		flex-wrap: wrap;
		justify-content: space-around;
	}

	.env-item {
		width: 47%;
		margin-bottom: 20px;
	}
}