.main-header {
    height: 72px;
    width: 100%;
    position: relative;
}

.mod-nav {
    width: 1200px;
    margin: 0 auto;
    height: 72px;
}

.logo {
    padding: 12px 0;
    float: left;
}

.item {
    float: left;
    margin-left: 300px;
}

.item li {
    float: left;
    padding: 0 16px;
}

.item li:hover {
    background: #F7F7F7
}

.item li .link {
    font-family: "Microsoft YaHei";
    color: #333;
    line-height: 72px;
    font-size: 14px;
}

.phone-num {
    float: right;
    height: 26px;
    margin: 23px 0;
}

.phone-content {
    display: inline-block;
    line-height: 26px;
    color: #fff;
    padding: 0 6px;
    font-size: 14px;
    background: #3E94F9;
    height: 26px;
    box-sizing: border-box;
    vertical-align: top;
}

.tel-phone-num {
    height: 26px;
    line-height: 26px;
    box-sizing: border-box;
    display: inline-block;
    border: 1px solid #4C86F4;
    margin-left: -8px;
    padding: 0 8px;
}

.phone-icon {
    margin-top: 4px;
}

.phone-num-content {
    vertical-align: top;
    font-size: 16px;
    height: 24px;
    line-height: 24px;
    color: #3E94F9;
}

.mod-subnav {
    width: 100%;
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    height: 100px;
    background: #fff;
    box-shadow: 0px 2px 8px 0px rgba(0, 0, 0, 0.1);
}

.mod-dropdown:hover .mod-subnav {
    display: block;
}


/* .product-link {
    position: relative;
}

.mod-dropdown:hover .product-link::after {
    display: block;
}

.product-link::after {
    content: "";
    position: absolute;
    bottom: -27px;
    left: 5px;
    display: none;
    width: 0;
    height: 0;
    border-left: 7.5px solid transparent;
    border-right: 7.5px solid transparent;
    border-bottom: 14px solid #fff;
    filter: drop-shadow(2px 2px 2px rgba(0, 0, 0, .8));
} */

.main-footer {
    height: 350px;
    background: #303030;
}

.footbox {
    width: 1200px;
    margin: 0 auto;
    height: 330px;
    color: #DCDCDC;
}

.foot-content {
    padding: 50px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.main-footer .foot-content li {
    float: left;
    margin-right: 112px;
}

.main-footer .foot-content li:last-child {
    margin-right: 0px;
}

.main-footer .foot-content li dt {
    color: #F8F8F8;
    font-size: 16px;
}

.main-footer .foot-content li dd,
.main-footer .foot-content li dd a {
    color: #DCDCDC;
    font-size: 14px;
}

.foot-num {
    margin-left: 71px;
}

.reference {
    text-align: center;
    color: #DCDCDC;
    padding-top: 12px;
}

.reference a {
    color: #DCDCDC;
    font-size: 14px;
}