/*通用样式*/
/*----------------------------------------------------------*/
.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 img {
	display: block;
	width: 100%;
}
.part-item-desc {
	font-family: "HarmonyOS_Sans_SC_Regular";
	line-height: 1.7;
	font-size: 18px;
	color: #333;
}
@media only screen and (max-width: 1024px) {
	.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-img-wrapper {
		margin-bottom: 16px;
	}
	.part-item-desc {
		font-size: 16px;
		line-height: 1.7;
	}
}
@media only screen and (max-width: 450px) {
	.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/aboutus-mechanical-field/main-bg.png');
	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/aboutus-mechanical-field/m-main-bg.png');
	}
	.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 .part-item-desc,
.mechanical-btn {
	margin-left: 16.666%;
}
.part3 .part-item-desc {
	margin-right: 16.666%;
}
.part2 .part2-img-wrapper {
	padding-bottom: calc(400 / 872 * 100%);
	background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/aboutus-mechanical-field/part2.png');
	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/aboutus-mechanical-field/part3.png');
	background-repeat: no-repeat;
	background-size: cover;
}
@media only screen and (max-width: 1599px) {
	.part2 .part-item-desc,
	.mechanical-btn {
		margin-left: 8.3333%;
	}
	.part3 .part-item-desc {
		margin-right: 8.3333%;
	}
}
@media only screen and (max-width: 1024px) {
	.part2 .part-item-desc,
	.part3 .part-item-desc,
	.mechanical-btn {
		margin: 0;
	}
	.part3 .part-left {
		order: 1;
	}
	.part2 .part2-img-wrapper {
		padding-bottom: calc(316 / 690 * 100%);
		background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/aboutus-mechanical-field/m-part2.png');
	}
	.part3 .part3-img-wrapper {
		padding-bottom: calc(316 / 690 * 100%);
		background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/aboutus-mechanical-field/part3.png');
	}
}


/*相关链接*/
/*--------------------------------------------------------*/
.rL-title-wrapper {
	display: flex;
	display: -ms-flexbox;
	display: -webkit-flex;
	align-items: center;
	-webkit-align-items: center;
}
.rL-title-wrapper::before,
.rL-title-wrapper::after {
	content: '';
	display: inline-block;
	flex: 1;
	-ms-flex: 1;
	-webkit-flex: 1;
	height: 1px;
	background: #004898;
}
.rL-title {
	font-family: "HarmonyOS_Sans_SC_Bold";
	font-size: 48px;
	color: #004898;
	margin: 0 60px;
	line-height: 1.3;
}
.rL-main {
	display: flex;
	display: -ms-flexbox;
	display: -webkit-flex;
}
.rL-item {
	flex: 1;
	-ms-flex: 1;
	-webkit-flex: 1;
	overflow: hidden;
	display: block;
	position: relative;
	margin-right: 15px;
}
.rL-item::after {
	display: block;
	content: '';
	position: absolute;
	width: 100%;
	height: 100%;
	top: 0;
	left: 0;
	opacity: 1;
	-moz-opacity: 1;
	-webkit-opacity: 1;
	filter: alpha(opacity=100);
	background-color: rgba(0, 0, 0, .4);
	transition: all .4s;
	-o-transition: all .4s;
	-ms-transition: all .4s;
	-moz-transition: all .4s;
	-webkit-transition: all .4s;
}
/*.rL-item:hover::after {
	opacity: 0;
	-moz-opacity: 0;
	-webkit-opacity: 0;
	filter: alpha(opacity=0);
}*/
.rL-item:last-child {
	margin-right: 0;
}
.rL-item .rL-item-img {
	width: 100%;
	padding-bottom: calc(500 / 1760 * 100%);
	background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/aboutus-mechanical-field/rl-item1.png');
	background-repeat: no-repeat;
	background-size: cover;
	cursor: pointer;
	transition: all .4s;
	-o-transition: all .4s;
	-ms-transition: all .4s;
	-moz-transition: all .4s;
	-webkit-transition: all .4s;
}
.rL-item:hover .rL-item-img {
	transform: scale(1.1);
	-o-transform: scale(1.1);
	-ms-transform: scale(1.1);
	-moz-transform: scale(1.1);
	-webkit-transform: scale(1.1);
}
.rL-item .rL-item-info {
	/*width: 100%;*/
	/*height: 100%;*/
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	-o-transform: translate(-50%, -50%);
	-ms-transform: translate(-50%, -50%);
	-moz-transform: translate(-50%, -50%);
	-webkit-transform: translate(-50%, -50%);
	text-align: center;
	z-index: 1;
}
.rL-item .rL-item-title {
	font-family: "HarmonyOS_Sans_SC_Regular";
	color: #FFF;
	font-size: 48px;
}

.rL-item .rL-item-more span {
	font-family: "HarmonyOS_Sans_SC_Medium";
	color: #FFF;
	font-size: 24px;
}
.rL-item .rL-item-more span.icon--6::before {
	color: #FFF;
}

.research-link-item:nth-child(1) figure{
	background: url(https://file.jingdiao.com/website/jingdiao/cn/images/research-development/link2.png);
	background-position: center;
	background-size: 100%;
	background-repeat: no-repeat;
}
.research-link-item:nth-child(2) figure{
	background: url(https://file.jingdiao.com/website/jingdiao/cn/images/research-development/link3.png);
	background-position: center;
	background-size: 100%;
	background-repeat: no-repeat;
}
.research-link-item:nth-child(3) figure{
	background: url(https://file.jingdiao.com/website/jingdiao/cn/images/research-development/link4.png);
	background-position: center;
	background-size: 100%;
	background-repeat: no-repeat;
}
.research-link-item:nth-child(4) figure{
	background: url(https://file.jingdiao.com/website/jingdiao/cn/images/research-development/link5.png);
	background-position: center;
	background-size: 100%;
	background-repeat: no-repeat;
}
@media only screen and (max-width: 1599px) {
	.rL-title {
		font-size: 38px;
	}
	.rL-item .rL-item-title {
		font-size: 38px;
	}
	.rL-item .rL-item-more span {
		font-size: 20px;
	}
	.rL-item .rL-item-more span.icon--6::before {
		font-size: 14px;
	}
}
@media only screen and (max-width: 1024px) {
	.rL-wrapper {
		margin-top: 40px;
		margin-bottom: 40px;
	}
	.rL-title {
		font-size: 28px;
		margin: 0 15px;
	}
	.rL-title-wrapper {
		margin-bottom: 24px;
	}
	.rL-main {
		display: block;
	}
	.rL-item {
		flex: 1;
		-ms-flex: 1;
		-webkit-flex: 1;
		overflow: hidden;
		display: block;
		position: relative;
		margin-right: 0;
		margin-bottom: 16px;
	}
	.rL-item:last-child {
		margin-bottom: 0;
	}
	.rL-item .rL-item-img {
		padding-bottom: calc(280 / 690 * 100%);
		background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/aboutus-mechanical-field/m-rl-item1.png');
	}
	.rL-item .rL-item-title {
		font-family: "HarmonyOS_Sans_SC_Bold";
		font-size: 20px;
		margin-bottom: 12px;
	}
	.rL-item .rL-item-more span {
		font-size: 16px;
	}
	.rL-item .rL-item-more span.icon--6::before {
		font-size: 12px;
	}
}
@media only screen and (max-width: 450px) {
	.rL-title {
		font-size: 24px;
	}
	.rL-item .rL-item-title {
		font-size: 18px;
	}
	.rL-item .rL-item-more span {
		font-size: 14px;
	}
	.rL-item .rL-item-more span.icon--6::before {
		font-size: 10px;
	}
}
/*--------------------------------------------------------*/
/*相关链接    end*/