.dvhead{
    width: 100%;
    min-width: 1080px;
    height: 120px;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 100;
}
main {
    display: inline-block;
    width: 100%;
    min-width: 1080px;
    position: relative;
}

.sub-menu-nav .menu-container .sub-menu-category {
    border-left: 1px solid #fff;
    border-right: 1px solid #fff;
    z-index: 1;
}

.sub-menu-nav {
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 65px;
    color: #fff;
    border-top: 1px solid #fff;
    border-bottom: solid 1px lightgray;
    z-index: 10;
}

.sub-menu-nav.smart-home.scroll-on {
    position: fixed;
    top: -1px;
    z-index: 998;
    transition: top .5s ease-in-out;
    background-color: #F7F7F7;
    border-bottom: solid 1px lightgray;
    box-shadow: 1px 1px 1px #F7F7F7;
}


section {
    position: relative;
    height: 520px;
}

.mainbao {
    position: absolute;
    margin-left: 1065px;
    margin-top: 9px;
    font-size: 12px;
    height: 34px;
    border-left: solid 1px lightgray;
    border-right: solid 1px lightgray;
    padding: 10px;
}

section a {
    color: #101010;
}