/*通用样式*/
/*----------------------------------------------------------*/
.spot {
	display: inline-block;
	width: 10px;
	height: 10px;
	background-color: #004898;
	margin-right: 24px;
}
.pc-wrap {
	line-height: 0;
}
.part-item {
	display: flex;
	display: -ms-flexbox;
	display: -webkit-flex;
	align-items: center;
	-webkit-align-items: center;
}
.part-left,
.part-right {
	flex: 1;
	-ms-flex: 1;
	-webkit-flex: 1;
}
.part-item-info {
	margin: 0 16.6667%;
}
.part-item img {
	display: block;
	width: 100%;
}
.part-item-title {
	font-family: "HarmonyOS_Sans_SC_Bold";
	font-size: 50px;
}
.part-item-desc {
	font-family: "HarmonyOS_Sans_SC_Regular";
	line-height: 2;
	font-size: 18px;
	color: #333;
}
.part-item-desc span {
	vertical-align: middle;
}
@media only screen and (max-width: 1599px) {
	.part-item-info {
		margin: 0 8.3333%;
	}
	.part-item-title {
		font-family: "HarmonyOS_Sans_SC_Bold";
		font-size: 40px;
	}
	.spot {
		margin-right: 16px;
	}
}
@media only screen and (max-width: 1024px) {
	.spot {
		margin-right: 10px;
	}
	.pc-wrap {
		display: none;
	}
	.part-item-info {
		margin: 0;
	}
	.part-item {
		flex-wrap: wrap;
		-ms-flex-wrap: wrap;
		-webkit-flex-wrap: wrap;
		padding-top: 40px;
		padding-bottom: 40px;
	}
	.part-left,
	.part-right {
		min-width: 100%;
		width: 100%;
	}
	.part-item-title {
		margin-bottom: 16px;
		text-align: center;
		font-size: 28px;
	}
	.part-item-desc {
		font-size: 16px;
		line-height: 1.7;
	}
	.part-img-wrapper {
		margin-bottom: 16px;
	}
}
@media only screen and (max-width: 450px) {
	.part-item-title {
		font-size: 24px;
	}
	.part-item-desc {
		font-size: 14px;
	}
}
/*----------------------------------------------------------*/

/*banner*/
/*----------------------------------------------------------*/
.part1 {
	position: relative;
	width: 100%;
	padding-bottom: 26.041667%;
	background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/service-engineering/main-bg.jpg');
	background-repeat: no-repeat;
	background-size: cover;
}
.part1 .main-info {
	width: 100%;
	position: absolute;
	top: 0;
	left: 0;
}
.part1 .main-info .main-title {
	font-family: "HarmonyOS_Sans_SC_Bold";
	width: 100%;
	text-align: center;
	color: #004898;
	font-size: 72px;
}
@media only screen and (max-width: 1599px) {
	.part1 .main-info .main-title {
		font-size: 64px;
	}
}
@media only screen and (max-width: 1299px) {
	.part1 .main-info .main-title {
		font-size: 60px;
	}
}
@media only screen and (max-width: 1024px) {
	.part1 {
		padding-bottom: calc(600 / 750 * 100%);
		background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/service-engineering/m-main-bg.jpg');
	}
	.part1 .main-info .main-title {
		margin-top: 40px;
		font-size: 42px;
		line-height: 1.3;
	}
}
@media only screen and (max-width: 450px) {
	.part1 .main-info .main-title {
		font-size: 36px;
	}
}
/*----------------------------------------------------------*/


.part3 {
	background-color: #F6F6F6;
}
.part2 .part2-img-wrapper {
	padding-bottom: calc(400 / 872 * 100%);
	background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/service-engineering/part2.jpg');
	background-repeat: no-repeat;
	background-size: cover;
}
.part3 .part3-img-wrapper {
	padding-bottom: calc(400 / 872 * 100%);
	background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/service-engineering/part3.jpg');
	background-repeat: no-repeat;
	background-size: cover;
}
@media only screen and (max-width: 1599px) {
}
@media only screen and (max-width: 1024px) {
	.part2 .part-item-desc,
	.part3 .part-item-desc {
		margin: 0;
	}
	.part3 .part-left {
		order: 1;
	}
}


.part4 {
	position: relative;
	width: 100%;
	padding-bottom: 20.83333%;
	background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/service-engineering/part4.jpg');
	background-repeat: no-repeat;
	background-size: cover;
}
.part4-info {
	position: absolute;
	top: 50%;
	right: 0;
	transform: translateY(-50%);
	-o-transform: translateY(-50%);
	-ms-transform: translateY(-50%);
	-moz-transform: translateY(-50%);
	-webkit-transform: translateY(-50%);
	text-align: center;
}
.part4-title {
	color: #FFF;
}
.part4-info .part-item-desc {
	color: #FFF;
	line-height: 2;
}
.service-contact-btn{
	margin-left: auto;
	margin-right: auto;
}
@media only screen and (max-width: 1024px) {
	.part4 {
		padding-bottom: calc(600 / 750 * 100%);
		background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/service-engineering/m-part4.jpg');
	}
	.part4-info {
		top: 60px;
		transform: translateY(0);
		-o-transform: translateY(0);
		-ms-transform: translateY(0);
		-moz-transform: translateY(0);
		-webkit-transform: translateY(0);
	}
	.part4-info .part-item-desc {
		line-height: 1.8;
	}
}