.box{
    background: #fff;
	overflow:hidden;
}
img{
    width: 100%;
    height: 100%;
}
/* 头部 nav */
.nav{
    width: 1200px;
    height: 53px;
    padding: 23px 0 25px;
    margin: auto;
    overflow: hidden;
}
.nav div{
    float: left;
    width: 55px;
    height: 53px;
}
.nav ul{
    float: right;
}
.nav ul li {
    float: left;
    margin-left: 75px;
    position: relative;
}
.nav ul li a{
    font-size: 18px;
    color: #333;
    line-height: 60px;
}
.nav ul li.active a{
    color: #052950;
}
.nav ul li.active i{
    position: absolute;
    bottom: 8px;
    left: 50%;
    margin-left: -11px;
    width: 22px;
    height: 4px;
    border-radius: 2px;
    background: #0c2f54;
}
.img_conf{
	width: 100%;
	height: 300px;
}

/* footer */
.footer{
    height: 250px;
    background: #333;
    color: #999;
}
.footer ul{
    width: 1200px;
    margin: 0 auto;
    
    overflow: hidden;
}
.footer ul li{
    float: left;
    margin: 0 70px;
}
.footer ul li div {
    margin-bottom: 32px;
}
.footer ul li div a{
    font-size: 20px;
    color: #999;
}
.footer ul li p{
    font-size: 16px;
    margin-bottom: 10px;
}
.footer ul li .img{
    width: 55px;
    height: 54px;
    margin-top: 34px;
}
.footer .footer_web{
    text-align: center;
    font-size: 16px;
    line-height: 26px;
}