.layui-nav {
    background-color: transparent !important;
}

.layui-nav .layui-nav-item>a {
    font-size: 16px;
    padding: 0 40px !important;
    color: #fff !important;
    font-weight: bold;
    opacity: 0.95;
}

.layui-nav .layui-nav-item .layui-this {
    background-color: transparent !important;
}

.layui-nav .layui-nav-item .layui-nav-child {
    background-color: rgba(0, 0, 0, 0.5);
    width: auto !important;
}


.layui-nav .layui-nav-child a {
    font-size: 16px;
    color: #fff !important;
    font-weight: bold;
    opacity: 0.95;
}

.layui-nav .layui-nav-child a:hover {
    background-color: transparent !important;
    color: rgb(214, 214, 214) !important;
}

.layui-nav .layui-nav-child a:hover {
    background-color: transparent !important;
    color: rgb(214, 214, 214) !important;
}

.layui-nav .layui-this:after {
    background-color: #00a74a !important;
}


.layui-nav .layui-this:after,
.layui-nav-bar {
    background-color: #00a74a !important;
}

.layui-nav .layui-nav-more {
    right: 16px !important;
}

.layui-btn {
    margin-top: 20px;
    width: 150px;
    padding: 0 !important;
    background-color: #00a74a !important;
    height: 56px !important;
    font-size: 18px !important;
    line-height: 56px !important;
    text-align: center;
    border-radius: 4px !important;
    cursor: pointer;
}


.wrap {
    width: 100%;
}

.header_top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 1200px;
    height: 72px;
    margin: 0px auto;
    position: relative;
}

.header_top_wrap {
    width: 100%;
    position: fixed;
    top: 0;
    z-index: 99999;
    transition: all .5s;
}

.header_top_wrap img {
    height: 50px;
}

.header_right {
    display: flex;
}

.tel {
    background: url(../img/tel.png) no-repeat left center;
    padding-left: 48px;
    width: 178px;
    line-height: 60px;
    color: #fff;
    font-size: 16px;
    font-weight: bold;
    opacity: 0.95;
}

.banner {
    width: 100%;
    height: 480px;
    color: #fff;
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.logo_txt {
    width: 100%;
    flex: 1;
    align-self: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 1200px;
    height: 72px;
    margin: 0px auto;
    text-align: left;
}

.logo_txt1 {
    max-width: 950px;
    font-size: 48px;
    line-height: 1.4em;
    margin: 12px 0px;
}

.logo_txt2 {
    font-size: 18px;
    line-height: 1.8em;
    margin: 12px 0px;
    max-width: 680px;
    font-family: 'PingFangSC-Regular', 'helvetica neue', tahoma, 'PingFang SC', 'microsoft yahei', arial, 'hiragino sans gb', sans-serif;
}

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

.main>h2 {
    font-size: 40px;
    text-align: center;
    line-height: 1 !important;
    margin-bottom: 30px;
}

.main>p {
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: 10px;
}

.main>img {
    margin-top: 20px;
}

.bottom {
    margin: 72px 0;
}

.footer {
    width: 100%;
    background: #151515;
}

.footer footer {
    width: 1200px;
    margin: 0px auto;
    padding-top: 35px;
    font-size: 14px;
    color: #b7b7b7;
    border-bottom: 1px solid #151515;
}

.footer footer .list_wrap {
    width: 100%;
    position: relative;
}

.footer footer .list {
    width: 83.333%;
    display: flex;
    margin-bottom: 20px;
}

.footer footer .list_wrap img {
    display: inline-block;
    width: 200px;
    position: absolute;
    top: 0;
    right: 0;
}

.footer footer .list_wrap .vx {
    width: 200px;
    position: absolute;
    text-align: center;
    top: 215px;
    right: 0;
    color: #fff;
}

dl {
    width: 20%;
    line-height: 44px;
}

dl dt,
dd {
    height: 44px;
}

.footer footer dl dt {
    font-size: 16px;
    color: #fff;
}

.footer footer dl dd {
    color: #b7b7b7;
}

.footer footer dl dd>a {
    color: #b7b7b7;
}

.footer footer .logo {
    color: #b7b7b7;
    padding-top: 10px;
    margin-bottom: 20px;
}

.footer footer .line {
    width: 100%;
    border-top: 1px solid #b7b7b7;
    margin-bottom: 20px;
}

.footer footer .footer_txt {
    margin-bottom: 30px;
}


.backTop {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 50px;
    height: 50px;
    box-shadow: 0 0 20px rgb(0 0 0 / 12%);
    cursor: pointer;
    border-radius: 50%;
    text-align: center;
    display: none;
    background: #fff;
}

.icon-zhiding {
    font-size: 16px;
    line-height: 50px;
    color: #00a74a;
}

.main a:hover {
    color: #000;
}