.header {
    position: relative;
}

header {
    position: fixed;
    top: 0;
    display: flex;
    width: 100%;
    height: 4.375rem;
    line-height: 4.375rem;
    background: #FFFFFF;
    z-index: 999;
}

header a,
.banner a {
    color: rgba(51, 51, 51, 1);
}

.header-logo {
    width: 24.6875rem;
    /* width: 27rem; */
    padding: .8125rem 0 0;
    text-align: right;
}

.header-logo img {
    width: 9.4588rem;
    height: 2.7746rem;
}

.header-nav {
    width: 71.1875rem;
    padding: .625rem 0;
    font-size: .875rem;
    white-space: nowrap;
    overflow: hidden;
}

.header-nav i {
    display: none;
}

.header-nav img {
    display: none;
}

.navs {
    display: flex;
    color: #ffffff;
}

.navs li {
    width: 7rem;
    height: 3.125rem;
    line-height: 3.125rem;
    border-radius: 3.125rem;
    text-align: center;
}

.navs>li>a {
    display: inline-block;
    width: 100%;
    height: 100%;
    /* padding: 0 1.5rem; */
}

.navs>li:hover {
    color: #ffffff;
    background: linear-gradient(180deg, #093FCF 0%, #285AE2 100%);
}

.navs>li:hover a {
    color: #ffffff;
}

.navs-active {

    background: linear-gradient(180deg, #093FCF 0%, #285AE2 100%);
}

.navs-active a {
    color: #ffffff;
}

.nav-two {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
}

.nav-two1 {
    height: 4.125rem;
    line-height: 4.125rem;
    /* background: rgba(255, 255, 255, .9); */
    background: #285AE2;
    box-shadow: 0px 6px 10px rgba(0, 0, 0, 0.08);
    overflow: hidden;
   
}

.nav-two1 .two {
    padding: 0;
    height: 4.125rem;
    /* background:rgba(255,255,255,.9); */
}

.two {
    height: 14.0625rem;
    padding: 1.25rem 3.75rem;
    /* background:rgba(255,255,255,.9); */
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
}

.two .two-item {
    margin: 0 1.875rem;
}

/* .nav-two1 {
    display: none;
    position: absolute;
    left: 0;
    width: 100%;
    height: 4.125rem;
    background:rgba(255,255,255,.9)
} */
.nav-two1-content {
    width: 19.375rem;
    display: flex;
}

.two-title {
    display: flex;
    color: rgba(255, 255, 255, .7);
    border-bottom: 1px solid rgba(112, 112, 112, .3);
}

.two-title:hover {
    color: #ffffff;
}

.two-title>a {
    color: #333333 !important;
}

.two-title>a:hover {
    color: #ffffff !important;
}

.two-title_active {
    color: #3385FF;
}

.two-title_active>a {
    color: #3385FF !important;
}

.two-title h3 {
    height: 3rem;
    line-height: 3rem;
    font-size: 1rem;
    color: #000000;

}

.two-title img {
    display: inline-block;
    width: 1.375rem;
    height: 1.375rem;
    vertical-align: middle;
    margin-right: .375rem;
}

.three-nav {
    font-size: .875rem;
    color: #333333;
    width: 39.125rem;
}

.three-nav li {
    height: 2.125rem;
    line-height: 2.125rem;
}

.header-tel {
    width: 24.25rem;
    font-size: 1rem;
    color: rgba(51, 51, 51, 1);
}

.header-tel span {
    vertical-align: middle;
}

.header-tel img {
    width: 1.375rem;
    height: 1.375rem;
    vertical-align: middle;
}

.list,
.problemlist {
    display: none;
}

@media screen and (max-width: 750px) {

    header {
        height: 5.5rem;
        width: 46.875rem;
    }

    .header-logo {
        width: 15.25rem;
        text-align: left;
    }

    .header-nav {
        width: 28.5rem;
    }

    .header-logo img {
        width: 13.75rem;
        height: 4rem;
    }

    .list,
    .problemlist {
        font-size: 2rem;
        color: #ffffff;
    }

    .list img,
    .problemlist img {
        width: 2.5rem;
        height: 2.5rem;
        vertical-align: middle;
        margin-right: 1rem;
    }

    .header-nav i {
        display: inline-block;
    }

    .header-nav img {
        display: inline-block;
    }

    .header-nav ul,
    .header-tel {
        display: none;
    }

    .header-nav>ul {
        position: absolute;
        top: 5.5rem;
        left: 0;
        right: 0;
        /* height: 28.75rem; */
        background: rgba(43, 48, 59, .96);
    }

    .header-nav li {
        /* height: 5.625rem; */
        line-height: 5.625rem;
        border-bottom: .0625rem solid rgba(255, 255, 255, .1);
        width: 100%;
        text-align: left;
    }

    .navs>li:hover {
        background: rgba(255, 255, 255, .1);

    }

    .header-nav .navs>li:first-child,
    .header-nav .navs>li:last-child {
        /*display: none;*/
    }

    .header-nav>img {
        position: absolute;
        top: 1.375rem;
        right: 1.75rem;
        width: 2.75rem;
        height: 2.75rem;
        z-index: 100000;
    }

    .header-nav li img {
        width: 1.875rem;
        height: 1.875rem;
        vertical-align: middle;
        margin-right: .875rem;
    }

    .header-nav li .nav-icon {
        width: 1.875rem;
        height: 1.875rem;
        vertical-align: middle;
        margin-right: .875rem;
    }

    .header-nav li .icon-0 {
        background-image: url(http://static.web3di.com/img/icon0.png);
        background-size: 100% 100%;
    }

    .header-nav li .icon-1 {
        background-image: url(http://static.web3di.com/img/1_Web3D_cz@2x.png);
        background-size: 100% 100%;
    }

    .header-nav li .icon-2 {
        background-image: url(http://static.web3di.com/img/1_swdh_cz@2x.png);
        background-size: 100% 100%;
    }

    .header-nav li .icon-3 {
        background-image: url(http://static.web3di.com/img/1_3Djm_cz@2x.png);
        background-size: 100% 100%;
    }

    .header-nav li .icon-4 {
        background-image: url(http://static.web3di.com/img/1_xgtzz_cz@2x.png);
        background-size: 100% 100%;
    }

    .header-nav li .icon-5 {
        background-image: url(http://static.web3di.com/img/1_jpal@2x.png);
        background-size: 100% 100%;
    }

    .header-nav li .icon-6 {
        background-image: url(http://static.web3di.com/img/icon6.png);
        background-size: 100% 100%;
    }

    .header-nav li .icon-7 {
        background-image: url(http://static.web3di.com/img/icon7.png);
        background-size: 100% 100%;
    }

    .nav-two {
        width: 100%;

        /* height: 42rem; */
        /* height: 23.25rem; */
        /* padding: 0 2.125rem 0 5.25rem; */
        color: #ffffff;
        background: #2B303B;
    }

    .nav-two1 {
        height: 100%;
        position: relative;
        border-bottom: .0625rem solid rgba(255, 255, 255, .1);
    }

    .nav-two .two,
    .nav-two1 .two {
        height: 100%;
        flex-wrap: wrap;
        background: #2B303B;
        color: #ffffff;
    }

    .nav-two1 .two {
        padding: 0 2.125rem 0 5.25rem;
    }

    .two-item {
        width: 100%;
    }

    .two-title {
        width: 39.125rem;
        color: #ffffff !important;
    }

    .two-title>a {
        color: #ffffff !important;
    }

    .two-title h3 {
        width: 37.9375rem;
        height: 5.25rem;
        line-height: 5.25rem;
        font-size: 1.5rem;
        color: #fff;
    }

    .two-title .left-img {
        display: none;
    }

    .right-img {
        display: inline-block;
        width: 1.5rem;
        height: .75rem;
        vertical-align: middle;
        margin-top: 1.875rem;
    }

    .three-nav {
        font-size: 1.5rem;
        color: #ffffff;
    }

    .three-nav li {
        height: 100%;
        padding: 0 2.75rem;
    }
}