* {
    padding: 0;
    margin: 0;
}

img,
a,
span {
    vertical-align: middle;
}

.main {
    width: 100%;
}
.banner {
    margin-top: 172px;
    height: 470px;
}

.banner img {
    width: 100%;
    height: 100%;
}

/* 在小屏幕设备上 */
@media screen and (max-width: 768px) {
    .banner {
        margin-top: 140px;
    }
    .banner img {
        height: 180px;
    }
}
.content-all:not(.content-daixing) {
    width: 1100px;
    margin: auto;
}
.top_height{
    display: none!important;
}
#s-header-nav {
    height: 82px!important;
}
@media screen and (max-width: 768px) {
    .content-all {
        width: 100%!important;
        margin: auto;
    }
    .dianhua{
        display: none!important;
    }
    .rates{
        display: none!important;
    }
    #s-header-nav {
        height: 0px!important;
    }
    .main {
        margin-top: 49px!important;
    }
    .dianhua-shang{
        display: none!important;
    }
}
.contactus{
    margin-top: 115px;
    padding-bottom: 168px!important;
}
@media screen and (max-width: 768px) {
    .contactus{
        margin-top: 22px!important;
        padding-bottom: 20px !important;
    }
}
@media screen and (min-width: 769px) and (max-width: 1024px) {
    .contactus{
        margin-top: 85px!important;
    }
}
@media screen and (min-width: 768px) and (max-width: 768px) { 
    .main {
        margin-top: 85px!important;
    }
} 
@media screen and (max-width: 768px) {
    .shouji_showgwc{
        display: none!important;
    }
}