@charset "UTF-8";
*, ::before, ::after {
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
}

/*top title*/
/*----------------------------------------*/
.top-title{
	position: relative;
	width: 83.3%;
	margin-left: auto;
    margin-right: auto;
}
.top-title img{
	width: 100%;
}
.top-title img:nth-child(2){
	position: absolute;
	top: 0;
	left: 0;
}
@media only screen and (max-width: 1299px) {
	.top-title{
		width: 90%;
	}
}
@media only screen and (max-width: 1024px) {
	.top-area{
		margin-left: 0;
		margin-right: 0;
	}
	.top-title{
		width: 100%;
	}
}
/*----------------------------------------*/
/*top title end*/

/*正文内容*/
/*----------------------------------------*/
.subtitle-item{
	width: 100%;
	position: relative;
}
.subtitle-item figure{
	width: 100%;
	padding-bottom: 36.46%;
}
.jianjie figure{
	background: url(https://file.jingdiao.com/website/jingdiao/cn/images/about-us/jianjie.png);
	background-position: center;
	background-size: 100%;
	background-repeat: no-repeat;
}
.subtitle-content{
	position: absolute;
	color: #FFFFFF;
	width: 42%;
}
.jianjie .subtitle-content{
	right: 11.5%;
	top: 20%;
}
.part-title{
	line-height: 1;
	color: #FFFFFF;
	text-align: left;
}
.part-desc{
	line-height: 1.75;
	color: #FFFFFF;
	text-align: left;
}
.keyan figure{
	background: url(https://file.jingdiao.com/website/jingdiao/cn/images/about-us/keyan.png);
	background-position: center;
	background-size: 100%;
	background-repeat: no-repeat;
}
.keyan .subtitle-content{
	left: 11.5%;
	top: 20%;
}
.shengchan figure{
	background: url(https://file.jingdiao.com/website/jingdiao/cn/images/about-us/shengchan.png);
	background-position: center;
	background-size: 100%;
	background-repeat: no-repeat;
}
.shengchan .subtitle-content{
	left: 0;
	right: 0;
	top: 50%;
	transform: translateY(-50%);
	-moz-transform: translateY(-50%);
	-ms-transform: translateY(-50%);
	-webkit-transform: translateY(-50%);
	width: 62%;
	margin: auto;
}
.shengchan .part-title{
	text-align: center;
}
.pt-part .part-items {
	display: flex;
	display: -ms-flexbox;
	display: -webkit-flex;
	flex-wrap: wrap;
	-ms-flex-wrap: wrap;
	-webkit-flex-wrap: wrap;
}
.pt-part .part-items .part-item {
	display: block;
	width: calc((100% - 2.5%) / 3);
	margin-right: 1.25%;
}
.pt-part .part-items .part-item:nth-child(3n) {
	margin-right: 0;
}
.pt-part .part-items .part-item .part-item-img {
	overflow: hidden;
	position: relative;
}
.pt-part .part-items .part-item .part-item-img figure {
	width: 100%;
    transition: all 0.6s;
    -moz-transition: all 0.6s;
    -webkit-transition: all 0.6s;
    -ms-transition: all 0.6s;
    -o-transition: all 0.6s;
}
.pt-part2 .part-items .part-item .part-item-img figure,
.pt-part3 .part-items .part-item .part-item-img figure,
.pt-part4 .part-items .part-item .part-item-img figure {
	padding-bottom: 56.25%;
}
.pt-part2 .part-items .part-item:nth-child(1) .part-item-img figure {
	background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/about-us/part201.png');
	background-size: cover;
	background-repeat: no-repeat;
	background-position: center;
}
.pt-part2 .part-items .part-item:nth-child(2) .part-item-img figure {
	background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/about-us/part202.png');
	background-size: cover;
	background-repeat: no-repeat;
	background-position: center;
}
.pt-part2 .part-items .part-item:nth-child(3) .part-item-img figure {
	background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/about-us/part203.png');
	background-size: cover;
	background-repeat: no-repeat;
	background-position: center;
}
.pt-part3 .part-items .part-item:nth-child(1) .part-item-img figure {
	background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/about-us/part301.png');
	background-size: cover;
	background-repeat: no-repeat;
	background-position: center;
}
.pt-part3 .part-items .part-item:nth-child(2) .part-item-img figure {
	background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/about-us/part302.png');
	background-size: cover;
	background-repeat: no-repeat;
	background-position: center;
}
.pt-part3 .part-items .part-item:nth-child(3) .part-item-img figure {
	background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/about-us/part303.png');
	background-size: cover;
	background-repeat: no-repeat;
	background-position: center;
}
.pt-part3 .part-items .part-item:nth-child(4) .part-item-img figure {
	background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/about-us/part304.png');
	background-size: cover;
	background-repeat: no-repeat;
	background-position: center;
}
.pt-part3 .part-items .part-item:nth-child(5) .part-item-img figure {
	background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/about-us/part305.png');
	background-size: cover;
	background-repeat: no-repeat;
	background-position: center;
}
.pt-part4 .part-items .part-item:nth-child(1) .part-item-img figure {
	background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/about-us/part401.png');
	background-size: cover;
	background-repeat: no-repeat;
	background-position: center;
}
.pt-part4 .part-items .part-item:nth-child(2) .part-item-img figure {
	background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/about-us/part402.png');
	background-size: cover;
	background-repeat: no-repeat;
	background-position: center;
}
.pt-part4 .part-items .part-item:nth-child(3) .part-item-img figure {
	background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/about-us/part403.png');
	background-size: cover;
	background-repeat: no-repeat;
	background-position: center;
}
.pt-part .part-items .part-item .part-item-img .img-mask {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background-color: #2d2d2d;
	opacity: 0;
    -moz-opacity: 0;
    -webkit-opacity: 0;
    filter: alpha(opacity=0);
    transition: all 0.6s;
    -moz-transition: all 0.6s;
    -webkit-transition: all 0.6s;
    -ms-transition: all 0.6s;
    -o-transition: all 0.6s;
}
.pt-part .part-items .part-item:hover .part-item-img figure {
	transform: scale(1.1);
	-o-transform: scale(1.1);
	-ms-transform: scale(1.1);
	-moz-transform: scale(1.1);
	-webkit-transform: scale(1.1);
}
.pt-part .part-items .part-item:hover .part-item-img .img-mask {
	opacity: .3;
    -moz-opacity: .3;
    -webkit-opacity: .3;
    filter: alpha(opacity=30);
}
.pt-part .part-items .part-item .part-item-info {
	padding: 0 16px;
}
.pt-part .part-items .part-item .part-item-title {
	text-align: center;
}
.pt-part .part-items .part-item .part-item-desc {
	font-family: "Helvetica LT Pro","HarmonyOS_Sans_SC_Regular";
	text-align: center;
	font-size: 18px;
	line-height: 2;
	color: #333333;
}
@media only screen and (max-width: 1299px) {
	.subtitle-content{
		width: 45%;
	}
	.jianjie .subtitle-content {
	    right: 8%;
	    top: 18%;
	}
	.keyan .subtitle-content {
	    left: 8%;
	    top: 18%;
	}
	.shengchan .subtitle-content{
		width: 62%;
	}
	.pt-part .part-items .part-item .part-item-desc {
		font-size: 16px;
	}
}
@media only screen and (max-width: 1024px) {
	.part-subtitle{
		margin-bottom: 10px;
	}
	.subtitle-item figure {
	    padding-bottom: 80%;
	}
	.jianjie figure {
	    background: url(https://file.jingdiao.com/website/jingdiao/cn/images/about-us/jianjie-m.png);
	    background-position: center;
	    background-size: 100%;
	    background-repeat: no-repeat;
	}
	.keyan figure {
	    background: url(https://file.jingdiao.com/website/jingdiao/cn/images/about-us/keyan-m.png);
	    background-position: center;
	    background-size: 100%;
	    background-repeat: no-repeat;
	}
	.shengchan figure {
	    background: url(https://file.jingdiao.com/website/jingdiao/cn/images/about-us/shengchan-m.png);
	    background-position: center;
	    background-size: 100%;
	    background-repeat: no-repeat;
	}
	.subtitle-content,
	.jianjie .subtitle-content,
	.keyan .subtitle-content,
	.shengchan .subtitle-content {
	    position: relative;
	    width: auto;
	    margin-left: 3.8%;
	    margin-right: 3.8%;
	    left: 0;
	    right: 0;
	    top: 0;
	    transform: none;
		-moz-transform: none;
		-ms-transform: none;
		-webkit-transform: none;
	}
	.part-title {
	    color: #000000;
	    text-align: center;
	}
	.part-desc {
	    color: #333333;
	    text-align: center;
	}
	.part-items{
		margin-left: 3.8%;
		margin-right: 3.8%;
	}	
	.pt-part .part-main-desc {
		text-align: left;
	}
	.pt-part .part-items {
		display: block;
	}
	.pt-part .part-items .part-item {
		width: 100%;
		margin-right: 0;
	}
	.pt-part2 .part-items .part-item .part-item-img figure,
	.pt-part3 .part-items .part-item .part-item-img figure,
	.pt-part4 .part-items .part-item .part-item-img figure {
		padding-bottom: 46.38%;
	}
	.pt-part2 .part-items .part-item:nth-child(1) .part-item-img figure {
		background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/about-us/part201-m.png');
	}
	.pt-part2 .part-items .part-item:nth-child(2) .part-item-img figure {
		background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/about-us/part202-m.png');
	}
	.pt-part2 .part-items .part-item:nth-child(3) .part-item-img figure {
		background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/about-us/part203-m.png');
	}
	.pt-part3 .part-items .part-item:nth-child(1) .part-item-img figure {
		background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/about-us/part301-m.png');
	}
	.pt-part3 .part-items .part-item:nth-child(2) .part-item-img figure {
		background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/about-us/part302-m.png');
	}
	.pt-part3 .part-items .part-item:nth-child(3) .part-item-img figure {
		background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/about-us/part303-m.png');
	}
	.pt-part3 .part-items .part-item:nth-child(4) .part-item-img figure {
		background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/about-us/part304-m.png');
	}
	.pt-part3 .part-items .part-item:nth-child(5) .part-item-img figure {
		background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/about-us/part305-m.png');
	}
	.pt-part4 .part-items .part-item:nth-child(1) .part-item-img figure {
		background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/about-us/part401-m.png');
	}
	.pt-part4 .part-items .part-item:nth-child(2) .part-item-img figure {
		background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/about-us/part402-m.png');
	}
	.pt-part4 .part-items .part-item:nth-child(3) .part-item-img figure {
		background-image: url('https://file.jingdiao.com/website/jingdiao/cn/images/about-us/part403-m.png');
	}
	.pt-part .buttonBox {
		width: 200px;
	}
	.pt-part .part-items .part-item .part-item-img .img-mask {
		display: none;
	}
	.pt-part .part-items .part-item:hover .part-item-img figure {
		transform: none;
		-moz-transform: none;
		-ms-transform: none;
		-webkit-transform: none;
	}
	.pt-part .part-items .part-item .part-item-info {
		padding: 0;
	}
	.pt-part .part-items .part-item .part-item-desc {
	    line-height: 1.7;
	}
}
@media only screen and (max-width: 450px) {
	.pt-part .part-items .part-item .part-item-info .part-item-desc {
		font-size: 14px;
	}
	.part-subtitle{
		margin-bottom: 8px;
	}
}
/*----------------------------------------*/
/*正文内容 end*/