.bk {
        border: 1px solid red;
    }
    .bu {
        border: 1px solid yellowgreen;
    }
    ul,
    li {
        list-style: none;
    }
    .containermargin {
        padding: 50px 0;
    }
    .maxwidth-500 {
        max-width: 500px;
    }
    .top {
        background:rgba(0,0,0,.8);
        padding: 0 8%;
        height: 78px;
        position: fixed;
        width: 100%;
        top: 0;
        left: 0;
        z-index: 1000;
    }
    .top .logo {
        float: left;
        height: 78px;
        line-height: 78px;
    }
    .top .topNav {
        float: right;
        height: 100%;
        height: 78px;
    }
    .top .topNav nav {
        margin-top: 18px;
    }
    .navbar-toggle .icon-bar {
        background: #ccc;
    }
    .top .topNav li a {
        color: #fff;
        font-size: 18px;
    }
    .nav .open>a, .nav .open>a:focus, .nav .open>a:hover{
        background-color:#000;
    }
    .dropdown-menu{
        background-color:rgba(0,0,0,.5);
    }
    .dropdown-menu>li>a:focus, .dropdown-menu>li>a:hover{
        background-color:rgba(255,255,255,.5);
    }
    .procuct li{
        font-size: 16px;
    }
    .product-title{
        text-align:center;
    }
    .product-title h2{
        font-size:28px;
    }
    .product-title p{
        font-size:18px;
        padding:30px 0;
    }
    .talentBanner .wrapper {
        height: 658px;
        position: relative;
        /* overflow:hidden; */
        background: rgba(53, 54, 68, 0.9);
        /* padding-top:78px; */
    }
    .talentBanneritem1 {
        top: 0px;
        background: url("../images/bg1.png");
    }
    .talentBanneritem2 {
        background: url("../images/bg2.png");
    }
    .talentBanner .wrapper .talentBanner-show {
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        z-index: 2;
        overflow: hidden;
    }
    .talentBanner .talentBanner-show .slider {
        position: absolute;
        left: 0;
        top: 0;
    }
    .talentBanner .talentBanner-show .slider-item {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        color: #fff;
        padding-top: 78px;
    }
    .talentBanner .talentBanner-show .container {
        width: 100%;
        height: 100%;
    }
    .talentBanner .talentBanner-show .item-row {
        width: 100%;
        height: 100%;
        margin: 0;
        padding: 0 10%;
    }
    .talentBanner .talentBanner-show .item-left {
        height: 100%;
        opacity: 0;
        position: relative;
    }
    .talentBanner .item-left .item-content {
        height: 200px;
        position: absolute;
        top: 50%;
        transform: translate(0, -100px);
        padding-left: 10%;
    }
    .talentBanner .item-left .item-title {
        display: inline-block;
        padding: 0 0 20px;
        font-size: 46px;
        position: relative;
        overflow: hidden;
    }
    .talentBanner .item-left .item-title .item-line {
        position: absolute;
        left: 0;
        bottom: 5px;
        height: 4px;
        width: 100%;
        border-radius: 2px;
        background: linear-gradient(to right, #fff, #dcb752);
    }
    .talentBanner .item-left .item-line:after {
        position: absolute;
        top: 0;
        left: -20px;
        content: '';
        width: 10px;
        height: 4px;
        background-color: currentColor;
        border-radius: 50%;
        box-shadow: 0 0 2px, 0 0 4px, 0 0 6px, 0 0 8px, 0 0 10px, 0 0 0 10px rgba(255, 255, 0, 0.1);
    }
    .talentBanner .item-left .item-content:hover .item-line:after {
        left: 150%;
        transition: left 0.5s ease 0s;
        opacity: 1;
    }
    .talentBanner .item-right {
        text-align: center;
        height: 100%;
        position: relative;
    }
    .talentBanner .item-right .item-img {
        position: absolute;
        height: 400px;
        top: 50%;
        transform: translate(0, -210px);
        text-align: center;
        width: 100%;
        line-height: 400px;
    }
    .talentBanner .slider-item .item-right img {
        transform: scale(0);
        transition: transform 1.5s;
        height: 400px;
    }
    .talentBanner .slider-item.current .item-right img {
        transform: scale(1);
    }
    .talentBanner .item-tip{
        font-size:16px;
        line-height:34px;
    }
    .talentBanner .talentBanner-show .slider-btn {
        position: absolute;
        right: 20px;
        top: 50%;
        text-align: center;
        margin: 0 auto;
        z-index: 200;
        transform: translate(0, -70px);
    }
    .talentBanner .slider-btn span {
        display: block;
        width: 10px;
        height: 10px;
        border-radius: 50%;
        margin: 15px 10px;
        background: rgba(0, 0, 0, .3);
        cursor: pointer;
        border: 1px solid #fff;
    }
    .talentBanner .slider-btn span.current {
        background: rgba(255, 255, 255, .8);
        border: 1px solid rgba(255, 255, 255, .8);
    }
    
    .case .case-img{
        margin-bottom:30px;
    }
    
    .case .case-img img{
        width:100%;
        max-height:600px;
    }
    .course .course-img{
        text-align:center;
        padding:0;
        
    }
    .course .course-img img{
        max-height:260px;
    }
    .course .course-list li {
        font-size:18px;
        margin-bottom:20px;
    }
    .team .team-img{
        text-align:center;
    }
    .team .team-img img{
        width:200px;
    }
    .team .team-list{
        font-size:18px;
        padding-top:80px;
    }
    .bottom{
        font-size:18px;
        background:rgba(0,0,0,0.8);
        color:#fff;
        padding:10px 0;
    }
    .bottom a{
        color: #fff;
    }
    .bottom .bottom-title{
        margin-bottom:10px;
    }
    .bottom .bottom-img {
        padding-left:50px;
    }
    .bottom .bottom-img img{
        width:200px;
        height:200px;
    }
    .bottom .bottom-desc{
        max-width:400px;
    }
    
    @media (min-width:1500px) and (max-width: 1600px) {
        .talentBanner .talentBanner-show .item-row {
            padding: 0 8%;
        }
    }
    
    @media (min-width:1400px) and (max-width: 1500px) {
        .talentBanner .wrapper {
            height: 628px;
        }
        .talentBanner .talentBanner-show .item-row {
            padding: 0 6%;
        }
        .talentBanner .item-left .item-title {
            font-size: 42px;
        }
        .talentBanner .slider-item .item-right img {
            height: 350px;
        }
    }
    
    @media (min-width:1300px) and (max-width: 1400px) {
        .talentBanner .wrapper {
            height: 598px;
        }
        .talentBanner .talentBanner-show .item-row {
            padding: 0 5%;
        }
        .talentBanner .item-left .item-content {
            padding-left: 8%;
        }
        .talentBanner .item-left .item-title {
            font-size: 38px;
        }
        .talentBanner .slider-item .item-right img {
            height: 340px;
        }
    }
    
    @media (min-width:1200px) and (max-width: 1300px) {
        .talentBanner .wrapper {
            height: 588px;
        }
        .talentBanner .talentBanner-show .item-row {
            padding: 0 3%;
        }
        .talentBanner .item-left .item-content {
            padding-left: 8%;
        }
        .talentBanner .item-left .item-title {
            font-size: 36px;
        }
        .talentBanner .slider-item .item-right img {
            height: 320px;
        }
    }
    
    @media (min-width:992px) and (max-width: 1200px) {
        .talentBanner .wrapper {
            height: 568px;
        }
        .talentBanner .talentBanner-show .item-row {
            padding: 0 3%;
        }
        .talentBanner .item-left .item-content {
            padding-left: 6%;
        }
        .talentBanner .item-left .item-title {
            font-size: 34px;
        }
        .talentBanner .slider-item .item-right img {
            height: 300px;
        }
    }
    
    @media (min-width:700px) and (max-width: 992px) {
        .talentBanner .col-md-5 {
            float: left;
            width: 41.6667%;
            padding: 0;
        }
        .talentBanner .col-md-7 {
            float: left;
            width: 58.3333%;
            padding: 0;
        }
        .talentBanner .wrapper {
            height: 458px;
        }
        .talentBanner .talentBanner-show .item-row {
            padding: 0 1%;
        }
        .talentBanner .item-left .item-content {
            height: 220px;
            transform: translate(0, -110px);
            padding-left: 6%;
        }
        .talentBanner .item-left .item-title {
            font-size: 30px;
        }
        .talentBanner .item-right .item-img {
            height: 300px;
            transform: translate(0, -160px);
            line-height: 300px;
        }
        .talentBanner .slider-item .item-right img {
            height: 240px;
        }
        .talentBanner .talentBanner-show .slider-btn {
            position: absolute;
            top: 100%;
            text-align: center;
            margin: 0 auto;
            width: 100%;
            z-index: 200;
            transform: translate(0, -30px);
        }
        .talentBanner .slider-btn span {
            display: inline-block;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            margin: 0px 10px;
            background: rgba(0, 0, 0, .3);
            cursor: pointer;
            border: 1px solid #fff;
        }
        .nav>li>a{
            padding:8px 6px; 
        }
    }
    
    @media (min-width:500px) and (max-width: 700px) {
        .talentBanner .col-md-5 {
            float: left;
            width: 41.6667%;
            padding: 0;
        }
        .talentBanner .col-md-7 {
            float: left;
            width: 58.3333%;
            padding: 0;
        }
        .talentBanner .wrapper {
            height: 428px;
        }
        .talentBanner .talentBanner-show .item-row {
            padding: 0 1%;
        }
        .talentBanner .item-left .item-content {
            height: 200px;
            transform: translate(0, -100px);
            padding-left: 6%;
        }
        .talentBanner .item-left .item-title {
            font-size: 28px;
        }
        .talentBanner .item-tip{
            font-size:14px;
            line-height:28px;
        }
        .talentBanner .item-right .item-img {
            height: 300px;
            transform: translate(0, -160px);
            line-height: 300px;
        }
        .talentBanner .slider-item .item-right img {
            height: 220px;
        }
        .talentBanner .talentBanner-show .slider-btn {
            position: absolute;
            top: 100%;
            text-align: center;
            margin: 0 auto;
            width: 100%;
            z-index: 200;
            transform: translate(0, -30px);
        }
        .talentBanner .slider-btn span {
            display: inline-block;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            margin: 0px 10px;
            background: rgba(0, 0, 0, .3);
            cursor: pointer;
            border: 1px solid #fff;
        }
       
       
    }
    @media (min-width:0) and (max-width: 768px){
        .navbar-collapse{
            background:rgba(130,130,130,0.9);
        }
    }
    @media (min-width:0) and (max-width: 500px) {
       
        .talentBanner .col-md-5 {
            float: left;
            width: 50%;
            padding: 0;
        }
        .talentBanner .col-md-7 {
            float: left;
            width: 50%;
            padding: 0;
        }
        .talentBanner .wrapper {
            height: 368px;
        }
        .talentBanner .talentBanner-show .item-row {
            padding: 0 1%;
        }
        .talentBanner .item-left .item-content {
            height: 160px;
            transform: translate(0, -80px);
            padding-left: 10%;
            top: 35%;
        }
        .talentBanner .item-left .item-title {
            font-size: 20px;
            display: block;
        }
        .talentBanner .item-tip{
            font-size:14px;
            line-height:24px;
        }
        .talentBanner .item-left .item-title .item-line {
            height: 2px;
        }
        .talentBanner .item-right .item-img {
            height: 200px;
            transform: translate(0, -110px);
            line-height: 200px;
        }
        .talentBanner .slider-item .item-right img {
            height: 160px;
        }
        .talentBanner .talentBanner-show .slider-btn {
            position: absolute;
            top: 100%;
            text-align: center;
            margin: 0 auto;
            width: 100%;
            z-index: 200;
            transform: translate(0, -30px);
        }
        .talentBanner .slider-btn span {
            display: inline-block;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            margin: 0px 10px;
            background: rgba(0, 0, 0, .3);
            cursor: pointer;
            border: 1px solid #fff;
        }
        .case .case-img iframe{
            height:260px;
        }
       
    }
    /* add START */
    
    .productVMlddle {
        top: 50%;
        transform: translate(0, 130px);
    }
    
    @media (min-width:0) and (max-width: 992px) {
        .productVMlddle {
            top: 15%;
            transform: translate(0, 0);
        }
        .team .team-img{
            padding-left:0;
        }
    }
    
  
    .nav>li>a:focus,.nav>li>a:hover {
        background-color: unset;
    }