a{color: #000;}
.banner{
    height: 688px;
    background: url(../img/index2_img_1.jpg) no-repeat;
}
.banner2{
    height: 755px;
    width: 2561px;
    position: relative;
    top: 0;
    left: -320px;
    background: url(../img/index3_img_1.png) no-repeat;
}
.b-text{
    top: 283px;
}
.main-nav{
    width: 100%;
    height: 68px;
    line-height: 68px;
    background-color: #C7E0F9;
}
.main-nav .f-box{
    width: 750px;
    margin: 0 auto;
    font-size: 20px;
}
.main-nav .f-box a.act{
    color: #fff;
}
#div1 .tits{
    margin: 49px 0 76px;
}
.div1-list{
    width: 1300px;
    margin: 0 auto;
}
.div1-li{
    text-align: center;
}
.div1-li p{
    margin-top: 37px;
    line-height: 26px;
    font-size: 15px;
}
#div2 .tits{
    margin: 120px 0 45px;
}
#div2{
    width: 1350px;
    margin: 0 auto;
}
.div2-li{
    width: 1350px;
    height: 60px;
    line-height: 60px;
    font-size: 15px;
    border-radius: 10px;
    background-color: #fff;
    margin-bottom: 13px;
    box-shadow: RGBA(0, 0, 0, .11) 0 4px 9px 0;
}
.div2-li:hover{
    box-shadow: RGBA(0, 0, 0,.21) 0 4px 9px 0;

}
.div2-text{
    margin-left: 20px;
    flex: 1;
}
.div2-text p:nth-child(1){
    width: 410px;
}
.div2-text p:nth-child(2){
    flex: 1;
}
.div2-text span{color: #0F78E3;}
.div2-btn,.div4btn{
    width: 154px;
    height: 45px;
    line-height: 45px;
    border-radius: 10px;
    color: #fff;
    margin: 8px 4px 0 0;
    background-color: #0F78E3;
    text-align: center;
}
.div2-btn:hover{
    opacity: 0.8;
}
.div2-btn a{
    display: inline-block;
    width: 100%;
    height: 100%;
    color: #fff;
}
#div3{
    width: 1306px;
    margin: 86px auto 60px;
    text-align: center;
}

#div3 h2{
    font-size: 40px;
}
#div3 p{
    font-size: 20px;
    line-height: 36px;
    text-indent: 2em;
}

/* ------------------------ */
.main-nav2 .f-box{
    width: 500px;
}
#div4{
    width: 2650px;
    height: 340px;
    position: relative;
    top: 0;
    left: -365px;
    background: url(../img/index3_div4_bg.png) no-repeat;
    margin-top: 120px;
    overflow: hidden;
}
#div4 .tits{
    margin: 68px auto 38px;
    color: #fff;
}
#div4 .tits p{color: #fff;margin-top: 36px;font-size: 15px;line-height: 26px;}
.div4-ipt{
    width: 305px;
    height: 46px;
    margin: 0 auto;
    border-radius: 10px;
    background: #DDDDDD;
}
.div4-ipt input{
    background:none;
    margin-left: 12px;
    margin-top: 5px;
    width: 180px;
    float: left;
    font-size: 14px;
    height: 37px;
    line-height: 37px;
}
.div4btn{
    width: 103px;
    height: 37px;
    line-height: 37px;
    float: right;
    margin: 5px 5px 0 0;
    font-size: 15px;
    cursor: pointer;
    text-align: center;
}