@-ms-viewport {width:device-width;}
html {box-sizing:border-box;-ms-overflow-style:scrollbar}
*,*::before,*::after {box-sizing:inherit;}
.container {margin-left:auto;margin-right:auto;min-width:960px;padding-left:15px;padding-right:15px;width:100%;}
@media only screen and (min-width:1200px) {.container {max-width:1170px}}

.row {display:-ms-flexbox;display:flex;-ms-flex-wrap:wrap;flex-wrap:wrap;margin-left:-15px;margin-right:-15px;}
.no-gutters {margin-left:0; margin-right:0;}
.align-items-center {align-items:center !important;-ms-flex-align:center !important;}
.justify-content-center {-ms-flex-pack:center !important;justify-content:center !important;}
.no-gutters > .col,.no-gutters > [class*=col-] {padding-left:0;    padding-right:0;}
.col-1,.col-2,.col-3,.col-4,.col-5,.col-6,.col-7,.col-8,.col-9,.col-10,.col-11,.col-12,.col,.col-auto,.col-5ths {min-height:1px;padding-left:15px;    padding-right:15px;position:relative;width:100%;}
.col {flex-basis:0;flex-grow:1;-ms-flex-positive:1;-ms-flex-preferred-size:0;max-width:100%}
.col-auto {-ms-flex:0 0 auto;flex:0 0 auto;max-width:none;    width:auto;}
.col-1 {-ms-flex:0 0 8.333333%;flex:0 0 8.333333%;max-width:8.333333%}
.col-2 {-ms-flex:0 0 16.666667%;flex:0 0 16.666667%;max-width:16.666667%}
.col-3 {-ms-flex:0 0 25%;flex:0 0 25%;max-width:25%}
.col-4 {-ms-flex:0 0 33.333333%;flex:0 0 33.333333%;max-width:33.333333%}
.col-5 {-ms-flex:0 0 41.666667%;flex:0 0 41.666667%;max-width:41.666667%}
.col-6 {-ms-flex:0 0 50%;flex:0 0 50%;max-width:50%}
.col-7 {-ms-flex:0 0 58.333333%;flex:0 0 58.333333%;max-width:58.333333%}
.col-8 {-ms-flex:0 0 66.666667%;flex:0 0 66.666667%;max-width:66.666667%}
.col-9 {-ms-flex:0 0 75%;flex:0 0 75%;max-width:75%}
.col-10 {-ms-flex:0 0 83.333333%;flex:0 0 83.333333%;max-width:83.333333%}
.col-11 {-ms-flex:0 0 91.666667%;flex:0 0 91.666667%;max-width:91.666667%}
.col-12 {-ms-flex:0 0 100%;flex:0 0 100%;max-width:100%}
.col-5ths {-ms-flex:0 0 20%;flex:0 0 20%;max-width:20%}
body {background-color:#fff;font-family:Microsoft Yahei,Arial,sans-serif;font-size:14px;line-height:1.5;margin:0;min-width:992px;padding:0;}
h1,h2,h3,h4 {font-weight:400;line-height:1;margin:0;}
h2 {color:#333;font-size:36px;font-weight:700;}
h3 {color:#333;font-size:24px;font-weight:700;}
h4 {color:#333;font-size:18px;}
a {color:#212121;text-decoration:none;}
a:hover,a:active,a.active {color:#ffc107;}
ul {list-style:none;margin:0;padding:0}
p {color:#525a66;}
small {font-size:16px;}
.img-fluid {height:auto; max-width:100%;}
.talk {cursor:pointer;}

.media {display:table;line-height:0;overflow:hidden;position:relative;}
.lazyimg {-moz-transition:all 1s;-webkit-transition:all 1s;transition:all 1s;    transition-duration:.5s;width:100%;}
.lazyimg:hover {-moz-transform:scale(1.2);-ms-transform:scale(1.2);-o-transform:scale(1.2);    -webkit-transform:scale(1.2);transform:scale(1.2);}
img {border:0;}

.nk-banner{overflow:hidden;}
.nk-nav {background-color:rgba(0,0,0,.2);height:50px;margin-top:-50px;position:relative;width:100%;z-index: 9;}
.nk-nav ul {height:100%;}
.nk-nav ul li {cursor:pointer;display:inline-block;height:100%;line-height:1;transition:all ease 0.3s;}
.nk-nav ul li a {color:#ffffff;display:block;font-size:18px;height:100%;line-height:50px;text-align:center;transition:all ease 0.3s;}
.nk-nav ul li:hover,.nk-nav ul li.active {background-color:#eaf6fd;}
.nk-nav ul li:hover a,.nk-nav ul li.active a {color:#003f98;}
.xiding{position:fixed;top:0;margin-top:0 !important;z-index: 99999;background-color:#1976d2;}

.nk-jianjie{padding-top:60px;padding-bottom:60px;}
.nk-jianjie .word{float:left;width:40%;}
.nk-jianjie .word h2{margin-bottom:20px;color:#000f24;font-size:25px;  font-weight: inherit;}
.nk-jianjie .word p{font-size:14px;line-height:1.875;}
.nk-jianjie .image{float:right;width:60%;}
.nk-jianjie .image img{float: right;padding-left:30px;}



.nk-zucheng {padding-top:60px;background-color:#eaf6fd;padding-bottom:60px;}
.nk-zucheng .title h2 {color:#000f24;font-size:25px;  font-weight: inherit;text-align:center;background-image: url("../images/nk_title_bg.png");background-repeat: no-repeat;
    background-position: center center;background-size: 100% auto;margin-bottom:20px;}
.nk-zucheng .title span {font-size:14px;line-height:1.875;display:block;margin-left:auto;margin-right:auto;max-width:820px;text-align:center;}
.nk-zucheng:after{content: " ";clear:both;height:0;}
.nk-zucheng .body{position: relative;display: table;width: 100%;height: 100%;margin-top:30px;}
.nk-zucheng-tabs{height:380px;}
.nk-zucheng-tabs,.nk-zucheng-tabs_item {position:relative;}
.nk-zucheng-tabs {width:50%;float:right;}
.nk-zucheng-tabs .nk-zucheng-tabs_item{width:50%;height:33.3333333%;min-height:100px;float:left;}
.nk-zucheng-tabs .nk-zucheng-tabs_item:nth-child(1) div{background-image: url(../images/nk_1_bg.jpg);background-size: 100% 100%;}
.nk-zucheng-tabs .nk-zucheng-tabs_item:nth-child(2) div{-webkit-animation-delay:.15s;animation-delay:.15s;background-image: url(../images/nk_2_bg.jpg);background-size: 100% 100%;}
.nk-zucheng-tabs .nk-zucheng-tabs_item:nth-child(3) div{-webkit-animation-delay:.3s;animation-delay:.3s;background-image: url(../images/nk_3_bg.jpg);background-size: 100% 100%;}
.nk-zucheng-tabs .nk-zucheng-tabs_item:nth-child(4) div{background-image: url(../images/nk_4_bg.jpg);background-size: 100% 100%;}
.nk-zucheng-tabs .nk-zucheng-tabs_item:nth-child(5) div{background-image: url(../images/nk_5_bg.jpg);background-size: 100% 100%;}
.nk-zucheng-tabs .nk-zucheng-tabs_item:nth-child(6) div{background-image: url(../images/nk_6_bg.jpg);background-size: 100% 100%;}
.nk-zucheng-tabs_item div {cursor: pointer;height:100%;position:relative;width:100%;border-top: solid 1px #c4dcf4;border-right: solid 1px #c4dcf4;-webkit-animation-delay:.15s;animation-delay:.15s;}
.nk-zucheng-tabs .nk-zucheng-tabs_item:nth-child(1) div,
.nk-zucheng-tabs .nk-zucheng-tabs_item:nth-child(3) div,
.nk-zucheng-tabs .nk-zucheng-tabs_item:nth-child(5) div{border-left:solid 1px #c4dcf4;}
.nk-zucheng-tabs .nk-zucheng-tabs_item:nth-child(5) div,.nk-zucheng-tabs .nk-zucheng-tabs_item:nth-child(6) div{border-bottom:solid 1px #c4dcf4;}
.nk-zucheng-tabs_item div span {bottom:0;color:#525a66;display:block;font-size:18px;top: 40%;position:absolute;text-align:center;transition:all ease 0.15s;width:100%;}
.nk-zucheng-tabs_item:hover div span,.nk-zucheng-tabs_item.active div span {color:#ffffff;}
.nk-zucheng-tabs_item:hover div,.nk-zucheng-tabs_item.active div{background-color: #3671cf;background-image: none !important;-webkit-animation-delay:.15s;animation-delay:.15s;}
.nk-zucheng_content {width:50%;float:left;}
.nk-zucheng_content .item {display:none;}
.nk-zucheng_content .item:nth-of-type(1) {display:block;}
.nk-zucheng_content .item .nk-zucheng_content_item {position:relative;transition:all ease 0.45s;}


.nk-gongyi {padding-top:60px;}
.nk-gongyi .title h2 {color:#000f24;font-size:25px;  font-weight: inherit;text-align:center;background-image: url("../images/nk_title_bg.png");background-repeat: no-repeat;background-position: center center;background-size: 100% auto;margin-bottom:20px;}
.nk-gongyi .body{position: relative;display: table;width: 100%;height: 100%;margin-top:30px;}
.nk-gongyi-tabs,.nk-gongyi-tabs_item {position:relative;}
.nk-gongyi-tabs {width:30%;float:left;}
.nk-gongyi-tabs .nk-gongyi-tabs_item{width:100%;height:20%;min-height:80px;}
.nk-gongyi-tabs .nk-gongyi-tabs_item:nth-child(1)::after,
.nk-gongyi-tabs .nk-gongyi-tabs_item:nth-child(2)::after,
.nk-gongyi-tabs .nk-gongyi-tabs_item:nth-child(3)::after,
.nk-gongyi-tabs .nk-gongyi-tabs_item:nth-child(4)::after{content: "";height:4px;background-color: #ffffff;width: 100%;position: absolute;bottom:0;left:0;;}
.nk-gongyi-tabs_item div {cursor: pointer;height:100%;position:relative;width:100%;background-color: #eaf6fd;}
.nk-gongyi-tabs_item div span {color:#525a66;top:33%;display:block;font-size:18px;position:absolute;left:20px;transition:all ease 0.15s;}
.nk-gongyi-tabs_item:hover div span,.nk-gongyi-tabs_item.active div span {color:#ffffff;}
.nk-gongyi-tabs_item:hover div,
.nk-gongyi-tabs_item.active div{background-color: #3671cf;background-image: none !important;-webkit-animation-delay:.15s;animation-delay:.15s;}
.nk-gongyi_content {width:70%;float:right;}
.nk-gongyi_content .item {display:none;}
.nk-gongyi_content .item:nth-of-type(1) {display:block;}
.nk-gongyi_content .item {position:relative;transition:all ease 0.45s;}
.nk-gongyi_content .item img{float: right;padding-left:20px;}



.nk-youshi {padding-top:60px;padding-bottom:60px;background-color: #eaf6fd;margin-top:60px;}
.nk-youshi .title h2 {color:#000f24;font-size:25px;  font-weight: inherit;text-align:center;background-image: url("../images/nk_title_bg.png");background-repeat: no-repeat;background-position: center center;background-size: 100% auto;margin-bottom:20px;}
.nk-youshi .body{position: relative;display: table;width: 100%;height: 100%;margin-top:30px;}
.nk-youshi-tabs,.nk-youshi-tabs_item {position:relative;}
.nk-youshi-tabs {width:30%;float:left;}
.nk-youshi-tabs .nk-youshi-tabs_item{width:100%;height:16.66667%;min-height:70px;}
.nk-youshi-tabs .nk-youshi-tabs_item:nth-child(1)::after,
.nk-youshi-tabs .nk-youshi-tabs_item:nth-child(2)::after,
.nk-youshi-tabs .nk-youshi-tabs_item:nth-child(3)::after,
.nk-youshi-tabs .nk-youshi-tabs_item:nth-child(4)::after,
.nk-youshi-tabs .nk-youshi-tabs_item:nth-child(5)::after{content: "";height:4px;background-color: #eaf6fd;width: 100%;position: absolute;bottom:0;left:0;;}
.nk-youshi-tabs_item div {cursor: pointer;height:100%;position:relative;width:100%;background-color: #ffffff;}
.nk-youshi-tabs_item div span {color:#212121;top:33%;display:block;font-size:18px;position:absolute;left:20px;transition:all ease 0.15s;}
.nk-youshi-tabs_item div i{background-image: url(../images/nk_ico_default.png);width: 40px;height: 40px;display: block;float: right;top: 25%;position: absolute;right: 20px;}
.nk-youshi-tabs_item:hover div span,.nk-youshi-tabs_item.active div span {color:#ffffff;}
.nk-youshi-tabs_item:hover div,
.nk-youshi-tabs_item.active div{background-color: #3671cf;background-image: none !important;-webkit-animation-delay:.15s;animation-delay:.15s;}
.nk-youshi-tabs_item:hover div i,.nk-youshi-tabs_item.active div i {background-image: url(../images/nk_ico.png);}
.nk-youshi_content {width:70%;float:right;padding-left:20px;}
.nk-youshi_content .item {display:none;}
.nk-youshi_content .item:nth-of-type(1) {display:block;}
.nk-youshi_content .item {position:relative;transition:all ease 0.45s;}
.nk-youshi_content .item  div {background-color: #ffffff;height:100%}
.nk-youshi_content .item  div img{width:100%;}
.nk-youshi_content .item  div p{padding:20px;}


.nk-canshu {padding-top:40px;}


.nk-anli {padding-top:60px;}
.nk-anli .title h2 {color:#000f24;font-size:25px;  font-weight: inherit;text-align:center;background-image: url("../images/nk_title_bg.png");background-repeat: no-repeat;background-position: center center;background-size: 100% auto;margin-bottom:20px;}

.nk-blog {padding-top:60px;padding-bottom:60px;}
.nk-blog .title h2 {color:#000f24;font-size:25px;  font-weight: inherit;text-align:center;background-image: url("../images/nk_title_bg.png");background-repeat: no-repeat;background-position: center center;background-size: 100% auto;margin-bottom:20px;}
.nk-blog .row .item{margin-top:40px;}
.nk-blog .row .item:hover  .lazyimg{-moz-transform:scale(1.1);-ms-transform:scale(1.1);-o-transform:scale(1.1);    -webkit-transform:scale(1.1);transform:scale(1.1);}
.nk-blog .row .item img {border:0;}
.nk-blog .row .item .images{	background-color: #eaf6fd;}
.nk-blog .row .item .text{	background-color: #eaf6fd;padding: 20px 15px;}
.nk-blog .row .item .text h4{line-height: 1.5;height:60px;overflow:hidden;color:#000000;}
.nk-blog .row .item .text h4 a{color:inherit;}
.nk-blog .time-view{margin-top:10px;}
.nk-blog .time-view .time{float:right;}
.nk-blog .time-view .view_more{color:#ff9900;}
.nk-blog .time-view .view_more a{color:inherit;}

.product_contact{background-color: #eaf6fd;padding-bottom:30px;}
    .product_contact .product_contact_form_title{margin-top:40px;margin-bottom:40px;text-align: center;}
.product_contact_visible{display: block;background-image: url(../images/pro-form_bg.jpg);width: 100%;height: 100%;background-position: top;background-repeat: no-repeat;background-size: 100% auto;}


@media only screen and (min-width:1200px) {
    .nk-nav{height:60px;margin-top:-60px;}
    .nk-nav ul li a {font-size:20px;line-height:60px;}
	
	.nk-jianjie{padding-top:80px;padding-bottom:80px;}
	.nk-jianjie .word h2{margin-bottom:33px;color:#000f24;font-size:36px;  font-weight: inherit;}
	.nk-jianjie .word p{font-size:16px;line-height:30px;}
	
    .nk-zucheng{padding-top:80px;padding-bottom:80px;}
    .nk-zucheng .title h2 {font-size:36px;margin-bottom:33px;}
	.nk-zucheng .title span {font-size:16px;line-height:30px;}

    .nk-jianjie{padding-top:80px;}

    .nk-gongyi{padding-top:80px;}
    .nk-gongyi .title h2 {font-size:36px;margin-bottom:40px;}


    .nk-youshi{padding-top:80px;padding-bottom:80px;}
    .nk-youshi .title h2 {font-size:36px;margin-bottom:40px;}

    .nk-canshu{padding-top:60px;}

    .nk-anli{padding-top:80px;}
    .nk-anli .title h2 {font-size:36px;margin-bottom:53px;}

    .nk-blog{padding-top:80px;padding-bottom:80px;}
    .nk-blog .title h2 {font-size:36px;margin-bottom:53px;}
    .nk-blog .time-view .view_more{font-size:16px;}

}
@media only screen and (min-width:1600px) {
    .nk-nav{height:80px;margin-top:-80px;}
    .nk-nav ul li a {font-size:24px;line-height:80px;}
	
		
    
}