.head .hei {
    height: 76px;
}

.head .language img {
    margin-right: 20px;
}

.nav1 {
    width: 100%;
    min-width: 1170px;
    height: 49.5px;
    background: #014fa2 url(../images/1710272244256288705.jpg) no-repeat center;
    background-size: cover;
}

.nav_con {
    width: 1170px;
    height: 50px;
    margin: 0 auto;
    background: url(../images/1710272244256693604.jpg) no-repeat;
    /*position:relative;z-index:12;*/
    z-index: 10;
}

.nav_con ul li a,
.nav_con ul li {
    width: 145px !important
}

.nav_con ul li a,
.nav_con ul li {
    z-index: 99;
    line-height: 49.5px;
    color: #FFF;
    font-size: 18px;
    text-decoration: none;
    font-weight: 800;
    height: 49.5px;
    display: block;
    position: relative;
}

.nav_con ul li {
    float: left;
}

#s7 {
    height: 192px;
    width: 640px;
    border: 0px #aaa solid;
    position: absolute;
    top: 48px;
    left: -465px;
    z-index: 999;
}

#nav_con li {
    position: relative;
}

.nav_con ul li.sy {
    text-indent: 30px;
    text-align: left;
}

#s1 {
    height: 192px;
    width: 640px;
    border: 0px #aaa solid;
    position: absolute;
    top: 49.5px;
    left: -36px;
    z-index: 999;
}

.nac_b {
    display: none;
}

.nav1 .aaa:hover .nac_b {
    display: block;
}

#s1 a,
#s2 a,
#s3 a,
#s4 a,
#s5 a,
#s6 a,
#s7 a,
#s8 a {
    width: 100px;
    line-height: 48px;
    height: 48px;
    text-align: center;
    color: #333;
    display: block;
    float: left;
    font-size: 14px;
    background: none;
    position: relative;
    border-bottom: 1px solid #999;
    margin-right: 30px;
    font-weight: 400;
}

#s2 {
    height: 240px;
    width: 740px;
    border: 0px #aaa solid;
    position: absolute;
    top: 49.5px;
    left: -185px;
    z-index: 999;
}

#s3 {
    height: 192px;
    width: 640px;
    border: 0px #aaa solid;
    position: absolute;
    top: 49.5px;
    left: -27px;
    z-index: 999;
}

#s4 {
    height: 192px;
    width: 640px;
    border: 0px #aaa solid;
    position: absolute;
    top: 49.5px;
    left: -175px;
    z-index: 999;
}

#s5 {
    height: 240px;
    width: 740px;
    border: 0px #aaa solid;
    position: absolute;
    top: 49.5px;
    left: -300px;
    z-index: 999;
}

#s6 {
    height: 192px;
    width: 640px;
    border: 0px #aaa solid;
    position: absolute;
    top: 49.5px;
    left: -465px;
    z-index: 999;
}
.align_items_center {
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
}
.flex {
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
}
.justify_content_space_between {
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
}