.head-nav {
    position: sticky;
    top: 0;
    left: 0;
    background-color: #fff;
    z-index: 5000;
}
.head-nav .head-search {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding-top: 10px;
}
.head-nav .head-search .language {
    margin-right: 16px;
}
.head-nav .head-search .language span {
    font-size: 14px;
    color: #999999;
}
.head-nav .head-search .language .txt {
    cursor: pointer;
}
.head-nav .head-search .language span.active {
    color: #E21824;
}
.head-nav .head-search .input {
    position: relative;
}
.head-nav .head-search .input input {
    width: 220px;
    height: 28px;
    /* border-color: #ccc; */
    border: 1px solid #ccc;
    padding-left: 12px;
    padding-right: 24px;
    color: #666;
}
.head-nav .head-search .input img {
    width: 15px;
    height: 15px;
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
}

.head-nav .head-tabs {
    display: flex;
    justify-content: space-between;
}

.head-nav .head-tabs .left-logo {
    height: 77px;
}
.head-nav .head-tabs .right-item {
    padding-top: 27px;
}
.head-nav .head-tabs .right-item ul {
    display: flex;
}
.head-nav .head-tabs .right-item ul>li {
    width: 120px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    color: #222;
    position: relative;
}
.head-nav .head-tabs .right-item ul>li>a {
    display: block;
    width: 120px;
    height: 50px;
}
.head-nav .head-tabs .right-item ul>li:hover {
    background-color: #E21824;
    cursor: pointer;
}
.head-nav .head-tabs .right-item ul>li:hover>a {
    color: #fff;
}
.head-nav .head-tabs .right-item ul>li.active {
    background-color: #E21824;
}
.head-nav .head-tabs .right-item ul>li.active>a {
    color: #fff;
}
.head-nav .head-tabs .right-item ul .about {
    position: relative;
}
.head-nav .head-tabs .right-item ul li.about:hover .menu,
.head-nav .head-tabs .right-item ul li.nav-news:hover .menu,
.head-nav .head-tabs .right-item ul li.nav-center:hover .menu,
.head-nav .head-tabs .right-item ul li.nav-aftersale:hover .menu,
.head-nav .head-tabs .right-item ul li.nav-contact:hover .menu
{
    display: block;
}
.head-nav .head-tabs .right-item ul .about ol 
 {
    position: absolute;
    width: 540px;
    height: 89px;
    left: 0;
    bottom: -89px;
    background-color: #fff;
    z-index: 2222;
}
.head-nav .head-tabs .right-item ul .nav-center ol {
    position: absolute;
    width: 570px;
    height: 135px;
    left: 0;
    bottom: -135px;
    background-color: #fff;
    z-index: 2222;
}
.head-nav .head-tabs .right-item ul .nav-news ol,
.head-nav .head-tabs .right-item ul .nav-aftersale ol {
    position: absolute;
    width: 440px;
    height: 48px;
    left: 0;
    bottom: -48px;
    background-color: #fff;
    z-index: 2222;
}
.head-nav .head-tabs .right-item ul .nav-contact ol {
    position: absolute;
    width: 274px;
    height: 48px;
    left: 0;
    bottom: -48px;
    background-color: #fff;
    z-index: 2222;
}
.head-nav .head-tabs .right-item ul .about .menu,
.head-nav .head-tabs .right-item ul .nav-news .menu,
.head-nav .head-tabs .right-item ul .nav-center .menu,
.head-nav .head-tabs .right-item ul .nav-aftersale .menu,
.head-nav .head-tabs .right-item ul .nav-contact .menu {
    display: none;
}
.head-nav .head-tabs .right-item ul .about .menu ol::after,
.head-nav .head-tabs .right-item ul .nav-news .menu ol::after,
.head-nav .head-tabs .right-item ul .nav-center .menu ol::after,
.head-nav .head-tabs .right-item ul .nav-aftersale .menu ol::after,
.head-nav .head-tabs .right-item ul .nav-contact .menu ol::after
 {
    content: "";
    display: block;
    clear: both;
}
.head-nav .head-tabs .right-item ul .about ol li,
.head-nav .head-tabs .right-item ul .nav-news ol li,
.head-nav .head-tabs .right-item ul .nav-center ol li,
.head-nav .head-tabs .right-item ul .nav-aftersale ol li,
.head-nav .head-tabs .right-item ul .nav-contact ol li
 {
    float: left;
    height: 20px;
    margin:0 20px;
    margin-top: 16px;
}
.head-nav .head-tabs .right-item ul .about ol li a,
.head-nav .head-tabs .right-item ul .nav-news ol li a,
.head-nav .head-tabs .right-item ul .nav-center ol li a,
.head-nav .head-tabs .right-item ul .nav-aftersale ol li a,
.head-nav .head-tabs .right-item ul .nav-contact ol li a
{
    font-size: 14px;
    display: block;
    line-height: 16px;
}
.head-nav .head-tabs .right-item ul .about ol li:hover a,
.head-nav .head-tabs .right-item ul .nav-news ol li:hover a,
.head-nav .head-tabs .right-item ul .nav-center ol li:hover a,
.head-nav .head-tabs .right-item ul .nav-aftersale ol li:hover a,
.head-nav .head-tabs .right-item ul .nav-contact ol li:hover a
 {
    color: #E21824;
}