@charset "utf-8";
/* CSS Document */

/*清除默认样式*/
body, div, dl, dt, dd, ul, ol, nl, li, h1, h2, h3, h4, h5, h6, p, span, a, b, strong, object, iframe, label, 

img, select, form, input, textarea, 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}
body{font-size:12px;font-family:'微软雅黑';}
.left{float:left;_display:inline;}
.right{float:right;_display:inline;}
.clear:after{content:"";clear:both;display:block;}
.clear{zoom:1;}
a{text-decoration:none;font-size:12px;}
li{list-style: none}
/* header */
.header{
    width: 100%;
    background: linear-gradient(to bottom, #3460ab, rgba(255,255,255,0));
    height: 100px;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 9999;
    transition: background .3s ease-out;
}

/* 滚动后导航栏样式（通过JS添加） */
.header.scrolled {
    background-color: #3460ab;
    
}

.top{
    height: 100px;
    width: 1200px;
    margin: 0 auto ;
}
.topLeft{
    width:130px;
    height:46px;
    float: right;
    margin-top: 20px;
}
.topLeft a{
    font-size:14px;
    font-family:STSongti-SC-Regular;
    font-weight:400;
    color:rgba(3,91,178,1);
    line-height:18px;
}
.topLeft>a{
    font-size: 12px;
    line-height: 23px;
    margin-top: 6px;
}
.top img{
    width: 90px;
    height: 90px;
    margin-top: 8px;
}
.top h3{
    font-size: 40px;
    font-family: MicrosoftYaHei;
    font-weight: bold;
    color: #fff;
    margin-left: 320px;
    line-height: 60px;
}
.top p{
    font-size: 21px;
    font-family: PingFangSC-Regular;
    font-weight: 400;
    color: rgba(4,120,169,1);
    padding-top: 10px;
}
.title{
    margin-left: 14px;
    margin-top: 14px;
    background: url(../images/top-name-w.png) no-repeat;
    background-size: 300px 50px;
    background-position: 0 5px;
    width: 900px;
    height: 110px;
}

.backWeb a {
    color: #fff;
    display: block;
    margin: 20px 20px 0 0;
    font-size: 15px;
}

.nav{
    width: 100%;
    height:74px;
    margin: 0 auto;
    background: url("../images/矩形@2x.png") no-repeat center;
    background-size: cover;
}
.nav>ul{
    width: 1200px;
    height: 100%;
    margin: 0 auto;
}
.nav>ul>li{
    height: 74px;
    text-align: center;
    line-height: 74px;
    float: left;
}
/* .nav>ul>.navBg{
    background: url("../images/矩形@2x\(1\).png")
} */
.nav>ul>li>a{
    width: 131px;
    height: 74px;
    text-align: center;
    line-height: 74px;
    float: left;
    font-size: 20px;
    color: white;
    border-right: 1px solid #1D6292;
    border-left: 1px solid #3085C0;
    margin: 0 0;
}
.nav>ul>li:nth-child(1)>a{
    border-left: none;
}
.nav>ul>li:nth-child(7)>a{
    border-right: none;
}
.nav>ul>li img{
    vertical-align:middle;
    width: 20px;
    height: 20px;
    margin-top:-4px;
}
/* content */
.content{
    width: 100%;
    
    overflow: hidden;
}

#demo{
    overflow:hidden;
    height:54px;
    width:150px;
    /* margin:90px auto; */
    position:relative;
  }
  #demo1{
    height:auto;
    text-align:left;
  }
  #demo2{
    height:auto;
    text-align:left;
  }
  #demo1 li{
    list-style-type:none;
    height:50px;
    text-align:left;
    /* text-indent:15px; */
  }
  #demo2 li{
    list-style-type:none;
    height:50px;
    text-align:left;
    /* text-indent:15px; */
  }

/*---- Dropdown Menu CSS ----*/
#mainNav ul.navbar-nav li.nav-item.dropdown-box {
    position: relative;
}
#mainNav ul.navbar-nav li.nav-item.dropdown-box .dropdown-list {
    top: 100%;
    left: 0;
    width: 100%;
    background-color: #1e7ab9;
    position: absolute;
    transition: .5s;
    visibility: hidden;
    opacity: 0;
    padding: 10px 0 30% 0;
    z-index: 1000;
}

.dropdown-list a {
    color: #fff;
    font-size: 17px;
    display: block;
    height: 48px;
    line-height: 48px;
}

.dropdown-list a:hover {
   background: #ffd800;
   color: #333;
}

.dropdown-list li {
    height: 48px;
}

#mainNav ul.navbar-nav li.nav-item.dropdown-box .dropdown-list:before {
   content:'';
   position: absolute;
   top: 0;
   left: 0;
   width: 0;
   height: 2px;
   transition: all 0.3s ease-in-out 0s;
   background: #ffd800;
   visibility: hidden;
}

#mainNav ul.navbar-nav li.nav-item.dropdown-box:hover .dropdown-list:before {
   width: 100%;
   visibility: visible;
}

#mainNav ul.navbar-nav li.nav-item.dropdown-box:hover .dropdown-list {
    top: 100%;
    visibility: visible;
    opacity: 1;
   text-align: center;
  background: #1e7ab9;
  
  
}