.nav {
    margin-top: 34px;
    margin-left: 374px;
    /* background-color: aqua; */
    height: 38px;
    border-bottom: 1px solid #595959;

}

.nav ul li {
    float: left;
    margin-right: 50px;
    
}
.nav ul li:nth-child(4) a{
    color:#288ece;}
   
    
    .nav ul li:nth-child(4)  {
        border-bottom: 1px solid #288ece;
    }
.nav ul li a {
    color: #c5c6c5;
    font-size: 16px;

}
/* .nav ul li:hover a {
    color:#288ece;
} */
.nav ul li {
    height:38px ;
}
/* .nav ul li:hover{

    border-bottom: 1px solid #288ece;

} */
.nav ul li:nth-last-child(1){
   
    font-weight: 700;
    margin-right: 0;
}
.nav ul li:nth-last-child(1) a {
    color: #288ece;
}



.synopsis {
    position: relative;
  /* height: 1234px; */
/*   
    background: url(../images/beibei_02.jpg) no-repeat;
    background-position: left 400px; */
}

.navigation ul {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: -50px;
}
.navigation ul li{
    float: left;
    width: 150px;
    height: 50px;
    font-size: 16px;
    margin-right: 11px;
    background-color: #aab0b7;
    opacity: 0.7;
    text-align: center;
    line-height: 50px;
    font-size: 16px;
    color: #fff;

}
.navigation ul li:nth-child(1){
    height: 48px;
   
    background-color: #fff;
    
    opacity: 1;
    border-top:2px solid #288ece;
}
.navigation ul li:nth-child(1) a {
    color: black;
}
/* .navigation ul .active{
    height: 48px;
    background-color: #fff;
    
    opacity: 1;
    border-top:2px solid #288ece;
}
.navigation ul .active a {
    color: black;
} */
.news-first{
    overflow: hidden;
    width: 1200px;
  margin: auto;
}
.news-first-top>ul {
    margin-top: 120px;
    /* height: 950px; */
}
.news-first-top>ul li {
    position:relative;
    float: left;
    margin-right: 60px;
    width: 360px;
    height: 406px;
    border-bottom: 2px solid #f5f5f5;
}
.news-first-top>ul li:nth-child(3n){
    margin-right: 0;
}
.news-first-top>ul li:hover {
    border-bottom: 2px solid #288ece;
}
.news-first-top>ul li h3 {
    margin-top: 40px;
    font-weight: 400;
    font-size: 16px;
}

.news-first-top>ul li h4 {
    margin-top: 20px;
    font-weight: 400;font-size:14px;
    color: #d2d2d2;
    line-height: 24px;

}

.news-first-top>ul li .ding {
    position: absolute;
    right: 0;
    bottom: 20px;
    color: #288ece;
    font-weight: 700;
}
.news-first-top>ul li {
    margin-bottom: 50px;
}



#pagination {
    margin-top: 60px;
   text-align: center;
}

#pagination #page_center_botton {
   display: none;
}

#pagination .btn-group {
   display: inline-block;
}

#pagination .btn-group span {
   padding: 10px 25px;
   display: inline-block;
   font-size: 16px;
   color: #333333;
   background-color: #f1f1f1;
   border: 1px solid #8e8e8e;
   margin: 0 15px;
}

#pagination .btn-group a {
   padding: 10px 25px;
   display: inline-block;
   font-size: 16px;
   color: #FFFFFF;
   color: #333333;
   background-color: #f1f1f1;
   margin: 0 15px;
   border: 1px solid #8e8e8e;
}

.item5 {
   height: 100px;
}

.news-first-top .pic img {
    width: 360px;
    height: 220px;
}