.banner img{
    width: 100%;
    vertical-align: bottom;
}
.body{
    padding: 35px 0 20px 0;
}
.little-title{
    font-size: 18px;
    color: #1d367f;
    text-align: center;
    margin-top: 35px;
}
.little-title i{
    display: inline-block;
    width: 25px;
    height: 1px;
    background-color: #1d367f;
    vertical-align: middle;
}
.little-title span{
    margin: 0 15px;
    font-weight:bold;
    vertical-align: middle;
}
.little-title p{
    font-size: 14px;
        font-weight:bold;
    color: #157cc4;
}
.title-5152{
    font-size: 30px;
    color: #003990;
    font-weight: bold;
    width: 100%;
    /*line-height: 2em;*/
    text-align: center;
    /*background-color: #eeeeee;*/
    margin: 25px 0 30px 0;
        padding: 20px 0;
}
.body-list{
    text-align: center;
    margin-bottom: 50px;
}
.tree-img{
    width: 100%;
    height: 300px;
    line-height: 300px;
}
.tree-img img{
    max-width: 100%;
    max-height: 100%;
    vertical-align: bottom;
}
.tree-title{
    width: 100%;
    line-height: 55px;
    font-size: 16px;
    background-size: 100% 100%;
    font-weight: bold;
}
.tree-title a{
    display: block;
    color: #FFFFFF;
    -webkit-transition: all .3s ease-in;
    -moz-transition: all .3s ease-in;
    -o-transition: all .3s ease-in;
    -ms-transition: all .3s ease-in;
    transition: all .3s ease-in;
}
.tree-title a:hover{
    color: #e1e1e1;
}
.tree-title-1{
    background-image: url("../images/tree-bg-1.png");
}
.tree-title-2{
    background-image: url("../images/tree-bg-2.png");
}
.tree-title-3{
    background-image: url("../images/tree-bg-3.png");
}
.tree-title-4{
    background-image: url("../images/tree-bg-4.png");
}
.tree-list{
    display: none;
    padding: 20px 30px;
    text-align: left;
}
.tree-1{
    background-color: #0081cc;
}
.tree-2{
    background-color: #6ea700;
}
.tree-3{
    background-color: #e1a400;
}
.tree-4{
    background-color: #003990;
}
.tree-list a{
    display: block;
    width: 100%;
    color: #FFFFFF;
    font-size: 14px;
    padding-bottom: 15px;
    -webkit-transition: all .2s ease-in;
    -moz-transition: all .2s ease-in;
    -o-transition: all .2s ease-in;
    -ms-transition: all .2s ease-in;
    transition: all .2s ease-in;
}

.tree-list a:hover{
    opacity: .7;
}
@media screen and (max-width: 1200px) {
    .banner{position: relative;overflow:hidden;}
    .banner img{
        position: relative;
        left: 50%;
        transform: translate3d(-50%, 0, 0);
        width: calc(1.6*100%);
    }
}
@media screen and (max-width:767px){
    .body{
        padding: 30px 0;
    }
    .body-list{
        margin-bottom: 20px;
    }
    .title-5152{
        margin: 20px 0 0 0;
    }
}