body {
    font-size: 16px;
    padding: 0px;
    margin: 0px;
    background: #fff;
    font-family: "微软雅黑";
}

*,
:after,
:before {
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    margin: 0px;
    padding: 0px;
}

ul {
    list-style-type: none;
}

li {
    list-style-type: none;
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    border: 0px;
}

input {
    outline: none;
}

button {
    outline: none;
}


.fix {
    *zoom: 1;
    *clear: both;
}

.fix:before,
.fix:after {
    display: table;
    clear: both;
    content: '';
}

.fl {
    float: left;
}

.fr {
    float: right;
}

.clear:after {
    content: '';
    display: block;
    clear: both;
}

.wrap {
    width: 1200px;
    margin: 0 auto;
}

.head {
    height: 97px;
}

.logo {
    margin-top: 27px;
    margin-left: 21px;
}

.nav {
    margin-right: 98px;
    margin-top: 37px;
}

.nav ul li {
    position: relative;
    float: left;
    line-height: 38px;
    width: 90px;
    text-align: center;
    font-size: 14px;
}

.nav ul li a {
    width: 86px;
    display: block;
    margin: 0 auto;
}

.nav ul li a:hover,
.nav ul li a.active {
    background: #38b449;
    width: 83px;
    height: 39px;
    border-radius: 20px;
    color: #fff;
}

.nav ul li::before {
    position: absolute;
    content: '';
    width: 1px;
    height: 15px;
    background: #333;
    right: 0;
    top: 13px;
}

.nav ul li:last-child::before {
    display: none;
}

.bottom {
    width: 100%;
    height: 350px;
    background: url(../images/bottom.png) no-repeat;
}

.read {
    margin-top: 33px;
}

.read_size {
    width: 328px;
    line-height: 30px;
    color: #9d9d9d;
    margin-top: 64px;
    font-size: 12px;
}

.contact_us {
    position: relative;
    margin-top: 38px;
    margin-left: 55px;
}

.contact_uss {
    position: relative;
    margin-top: 38px;
    margin-left: 55px;
}

.contact_uss p {
    color: #fff;
    font-size: 20px;
}

.contact_uss p::after {
    position: absolute;
    content: '';
    width: 41px;
    height: 3px;
    background: #fff;
    top: 50px;
    left: 0px;
}

.contact_us p {
    color: #fff;
    font-size: 20px;
}

.contact_us p::after {
    position: absolute;
    content: '';
    width: 41px;
    height: 3px;
    background: #fff;
    top: 50px;
    left: 0px;
}

.introduce {
    margin-top: 65px;
}

.introduce_img {
    margin-top: 5px;
}

.introduce_size p {
    font-size: 12px;
    color: #9d9d9d;
    margin-top: 5px;
    margin-left: 10px;
}

.phone {
    margin-top: 10px;
}

.email {
    margin-top: 10px;
}

.site_map {
    margin-top: 65px;
    width: 300px;
    height: 103px;
}

.site_map ul li {
    width: 110px;
    height: 34px;
    float: left;
}

.site_map ul li img {
    float: left;
    margin-top: 8px;
}

.site_map ul li p {
    float: left;
    font-size: 12px;
    color: #9d9d9d;
    margin-left: 11px;
}

.sweep {
    margin-top: 54px;
}

.bottom {
    height: 350px;
}

.bottom_all {
    height: 277px;
}

.bbt_size {
    color: #b7b7b7;
    text-align: center;
    margin-top: 22px;
    font-size: 12px;
}

.bbt {
    border-top: 1px solid #555555;
    height: 73px;
}

.mobile_nav {
    display: none;
}

@media screen and (min-width:320px) and (max-width:1220px) {
    /*头部*/
    .head {
        display: none;
    }
    /*手机导航*/
    .mobile_nav {
        position: relative;
        display: block;
        height: 80px;
        width: 100%;
        padding: 0 2%;
        line-height: 80px;
    }
    .sider_xs {
        position: absolute;
        top: 80px;
        background: #fff;
        left: 0;
        width: 100%;
        z-index: 10;
        text-align: center;
        line-height: 42px;
        display: none;
    }
    .sider_xs ul li.cur,.sider_xs ul li:active{
        background: #fed30c;
    }
    .m_logo img {
        vertical-align: middle;
    }
    .m_nav {
        height: 80px;
    }
    .m_nav img {
        width: 35px;
        vertical-align: middle;
    }
    /*底部*/
    .read_logo {
        display: none;
    }
    .contact_us {
        margin-top: 15px;
        margin-left: 125px;
    }
    .wrap {
        width: 100%;
    }
}

@media screen and (min-width:768px) and (max-width:1128px) {
    /*底部*/
    .contact_us {
        margin-left: 25px;
        margin-right: 10px;
        width: 33.3%;
    }
    .contact_uss {
        margin-left: 0px;
        margin-right: 10px;
        margin-top: 12px;
    }
    .site_map {
        width: 240px;
    }
    .bbt_size {
        font-size: 15px;
    }
}

@media screen and (min-width:320px) and (max-width:767px) {
    /*头部*/
    .m_logo img {
        width: 100px;
        height: 28px;
    }
    .m_nav img {
        width: 20px;
        height: 20px;
    }
    .m_logo {
        height: 50px;
    }
    .m_nav {
        height: 50px;
    }
    .mobile_nav {
        line-height: 50px;
        height: 50px;
    }
    /*底部*/
    .zx_xiug{
        display: none;
    }
    .contact_us {
        margin-left: 0px;
        padding: 0 15%;
        width: 100%;
    }
    .contact_us p::after {
        left: 15%;
        top: 38px;
    }
    .contact_uss {
        margin-left: 0px;
        padding: 0 15%;
        margin-bottom: 10px;
        width: 100%;
    }
    .contact_uss p::after {
        left: 15%;
        top: 38px;
    }
    .introduce {
        text-align: center;
        margin-top: 30px;
    }
    .site_map {
        margin-top: 30px;
        width: 100%;
    }
    .sweep {
        margin-top: 28px;
    }
    .bbt_size {
        width: 100%;
        padding: 0 2%;
        text-align: center;
        font-size: 12px;
    }
    .bottom {
        width: 100%;
        height: auto;
        background-size: 100% 100%;
    }
    .sider_xs {
        top: 50px;
        background: #38b449;
        color: #fff;
    }
}