.d_flex{
	display: -moz-flex;
	display: -ms-flex;
	display: -o-flex;
	display: -webkit-box;
	display: -ms-flexbox;
	display: flex;
}
/* ============ footer============ */
footer{
    background-color: #f2f2f2;
    font-size: 15px;
    min-width: 320px;
    color: #000000;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    display: block;
}
.f_nav{
/*    max-width: calc( 1600px + 10% );*/
    
    padding: 30px 0px;
    margin: 0 auto;
    -webkit-box-sizing: border-box;
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
}
.f_nav_l,.f_nav_r{
    width: 50%;
    -ms-flex-pack: distribute;
    justify-content: space-around;
}

.f_nav_group{
    display: inline-block;
    
}
.f_nav_group h4{
    font-size: 18px;
    line-height: 20px;
    font-weight: bolder;
    padding: 36px 0 4px 0;
    color: #028760;
    display: block;
}
.f_nav_group ul li{
    font-size:11px ;
    line-height: 16px;
    padding: 8px 0;
    display: block;
}
.f_nav_group li a,.f_bottomR ul li a,.f_bottomL a{
    text-decoration: none;
    color: #616161;
    word-break: break-word;
    background-color: transparent;
}
.f_nav_group li a:hover,.f_bottomR ul li a:hover,.f_bottomL a:hover{
    text-decoration:underline;
    color:rgba(0,0,0,.9);
}
.f_new{
    width: 100%;
    max-width: 500px;
}
.f_store{
    width: 100%;
    max-width: 150px;
}
.f_education{
    width: 100%;
    max-width: 200px;
}
.f_enterprise{
    width: 100%;
    max-width: 215px;
}
.f_developer{
    width: 100%;
    max-width: 200px;
}
.f_company{
    width: 100%;
    max-width: 100px;
}

.f_bottom{
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
    padding:20px 5% 20px 5%;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
}
.f_bottomL{
    min-width: 100px;
    display: block;
    font-size: 11px;
    line-height: 16px;
    color: #616161;
    padding: 8px 0;
}
.f_bottomL:before{
    content: " ";
    background-image: url(../img/lan_earth.png);
    width: 22px;
    height: 22px;
    display: inline-block;
    line-height: 22px;
    margin-right: 5px;
    vertical-align: middle;
}
.f_bottomR{
    width:auto;
    display:block;
    padding: 8px 0;
}
.f_bottomR ul li{
    display: inline-block;
    padding: 0 24px 4px 0;
    font-size: 11px;
    line-height: 16px;
    color: #616161;
}

/*========== footer ==========*/
@media screen and (max-width: 1200px) {
    .f_nav {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        max-width: 100%;
    }

    .f_nav_l,.f_nav_r {
        width: auto;
    }

    .f_new,.f_store,.f_education,.f_enterprise,.f_developer,.f_company {
        width: 100%;
        max-width: 300px;
    }
}
@media screen and (max-width: 768px) {
    .f_bottomR{
        display: block;
        width: 100%;
    }
    .f_bottomR ul li{
        display: inline-block;
        padding: 0 4px 4px 6px;
        font-size: 11px;
        line-height: 16px;
        color: #616161;
    }
    
}
@media screen and (max-width: 540px){
    .f_nav_l,.f_nav_r{
        width: 100%;
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
    }
.f_new,.f_store,.f_education,.f_enterprise,.f_developer,.f_company{
        width: 100%;
    max-width: 320px;
    }
}