html, body, div, span, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
abbr, address, cite, code,
del, dfn, em, img, ins, kbd, q, samp,
small, strong, sub, sup, var,
b, i,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section, summary,
time, mark, audio, video {
    margin:0;
    padding:0;
    border:0;
    outline:0;
    vertical-align:baseline;
    background:transparent;
}



article,aside,canvas,details,figcaption,figure,
footer,header,hgroup,menu,nav,section,summary { 
    display:block;
}

nav ul {
    list-style:none;
}

blockquote, q {
    quotes:none;
}

img{
    vertical-align: middle;
}

blockquote:before, blockquote:after,
q:before, q:after {
    content:'';
    content:none;
}

a {
    margin:0;
    padding:0;
    border:0;
    
    vertical-align:baseline;
    background:transparent;
    text-decoration: none;
}
z{
    font-family: Microsoft YaHei;
    color: #363635;
}


table {
    border-collapse:collapse;
    border-spacing:0;
}
input, select{
    outline: medium none;
}

hr {
    display:block;
    height:1px;
    border:0;   
    border-top:1px solid #cccccc;
    margin:1em 0;
    padding:0;
}
input{
    padding: 0;
}
input, select {
    vertical-align:middle;
}
li{
    list-style: none;
}
body{
  
    background-color: #ffffff;
     min-width: 1250px;
    margin:0 auto;
}
.width1200{
    width: 1200px;
    margin: 0 auto;
}
.width1250px{
     width: 1250px;
     margin: 0 auto;
}
.clearfix::after{
    display: block;
    content: '';
    height: 0;
    width: 0;
    clear: both;
}
.clearfix{
    zoom: 1;
}
input:focus::-webkit-input-placeholder {

color: transparent;



}



input:focus:-moz-placeholder {

color: transparent;

}



input:focus::-moz-placeholder {

color: transparent;

}



input:focus:-ms-input-placeholder {

color: transparent;

}
.top-case{
    margin:0 auto;
    background: url(../images/topa.png) no-repeat center top;
    background-size: 100%  100%;
}
.top{
    width: 100%;
    padding-top: 1px;
    height: 518px;
    background: linear-gradient( 180deg, #1A3D71 0%, rgba(2,83,199,0) 100%);
    border-radius: 0px 0px 0px 0px;
   
}
.top .width1200{
    display: flex;
    align-items: center;
    justify-content: space-between;
}
 .top  .line{
    padding:50px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.5);
    overflow: hidden;
 }
   

.top  .logo{
    /* padding: 50px 0; */
    width: 570px;
    display: block;
    float: left;
}
.line{
   
}
.mar_top{
    margin-top: 20px;
}
.nav {
    height: 65px;
  
}
.nav .nLi {
    float:left;
    position:relative;
    display:inline;
    z-index:999;
    height: 62px;
    line-height: 62px;
    text-align: center;
    /* width: 8%; */
    /* margin-right: 1%; */
    margin: 0px 16px;
}
.nav .nLi a{
    display: block;
    width: 100%;
    height: 62px;
    line-height: 62px;
    font-size: 20px;
    font-weight: normal;
    font-stretch: normal;
    letter-spacing: 0px;
    color: #ffffff;
    position: relative;
    z-index: 10;
}
.nav .nLi {
    position: relative;
    display: inline-block;
    padding-bottom: 5px; /* 给下划线留空间 */
}

.nav .nLi::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 100%;
    height: 3px;
    background-color: #ffffff;
    transition: transform 0.3s ease;
    transform-origin: center;
}

.nav .nLi:hover::after {
    transform: translateX(-50%) scaleX(1);
}

.nav .nLi:hover h3 a{
   color: #ffffff;
   font-weight: bold;
}
.nav .sub {
    width: 180px;
    left:0;
    top:64px;
    position:absolute;
    display:none;
    background: #0B4CAA;
}
.nav .sub li {
    zoom:1;
    height:40px;
    line-height:40px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}
.nav .sub a {
    font-size:16px;
    color:#fff;
    height:40px;
    line-height:40px;
    display:block;
    text-align: left;
    text-indent: 20px;
}
.nav .sub li:hover {
    background-color:rgba(131, 182, 255, 0.4);
    /*color:#fff;*/
    /*font-weight: 400;*/
}
.nav .on h3 a {
    /*background-color: #3583e6;*/
    color: #ffffff;
    font-weight: bold;

}

.nav .on::after{
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(1);
    width: 100%;
    height: 3px;
    background-color: #ffffff;
    transition: transform 0.3s ease;
    transform-origin: center;
}
.martop{
    margin-top:25px;
}


.seacher {
    width: 173px;
    height: 31px;
    float: right;
    background: rgba(255,255,255,0.1);
}
.seacher .text {
    border: none;
    height: 31px;
    width: 126px;
    line-height: 31px;
    text-indent: 10px;
    float: left;
    font-size: 14px;
    outline: none;
    background: none;
     color: #ffffff;
}

.seacher .button {
    float: right;
    width: 47px;
    height: 31px;
    text-align: center;
    line-height: 49px;
    background: url(../images/ss.png) no-repeat center;
    background-size: 16px;
    color: #ffffff;
    border: none;
    font-size: 16px;
}
.seacher  input::placeholder {
    color: #FFFFFF;
    font-size: 14px;
    opacity: 0.7;
    
}

.fl{
    float: left;
}

.fr{
    float: right;
}

.footer{
    width: 100%;
    background: url(../images/footer.png) no-repeat center;
    background-size: 100%;
    padding: 40px 0;
    margin-top:30px;
}
.footer .width1200{
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.footer .width1200 .ewm-box img{
    width: 80px;
    float: left;
}
.footer .width1200 .ewm-box span{
    font-weight: 400;
    font-size: 14px;
    color: #FFFFFF;
    line-height: 20px;
    display: block;
    float: left;
    margin-top: 40px;
    margin-right: 13px;
}
.footer  p{
    font-family: Microsoft YaHei, Microsoft YaHei;
    font-weight: 400;
    font-size: 16px;
    color: #FFFFFF;
    line-height: 30px;
    text-align: center;
}
.footer  a{
    font-family: Microsoft YaHei, Microsoft YaHei;
    font-weight: 400;
    font-size: 16px;
    color: #FFFFFF;
    line-height: 30px;
}

.footer div a:hover{
    font-size: 18px;
    color:#0351AB;
}

.footer-bottom{
    width: 100%;
    background: #003D95;
    border-radius: 0px 0px 0px 0px;
    /*opacity: 0.6;*/
    padding:20px 0;
}
.footer-bottom .width1200{
    font-weight: 400;
    font-size: 14px;
    color: #FFFFFF;
    opacity: 0.6;
}


.listTop-case .top{
    background: linear-gradient( 90deg, #0253C7 0%, #0E4492 100%);
    opacity: 0.9; 
    /*max-width: 1920px;*/
    margin:0 auto;
}
.listTop-case .top{
    height: auto; 
}
.banner-top{
    width: 100%;
    height: 240px;
    background: url(../images/list-top1.png) no-repeat center;
    background-size: 100% 100%;
}

.listTop-case .top .nav .nLi{
    margin:0;
    padding:0 16px;
}



.listTop-case .top .nav{
     background-color: rgba(150, 193, 255, 0.1);
}


.listTop-case .top .nav .nLi::after{
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 100%;
    height:64px;
    background-color: rgba(150, 193, 255, 0.1);
    transition: transform 0.3s ease;
    transform-origin: center;
}

.listTop-case .top .nav .on::after{
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0%;
    transform: translateX(0%) scaleX(1);
    width: 100%;
    height: 64px;
    background-color: rgba(150, 193, 255, 0.1);
    transition: transform 0.3s ease;
    transform-origin: center;
}
.listTop-case .top .nav .nLi:hover::after {
    transform: translateX(-50%) scaleX(1);
}

.listTop-case .top .nav .nLi.on:hover::after {
    transform: translateX(0%) scaleX(1);
}