main{
        overflow: hidden;
    }
    main .banner>img{
        opacity: .43;
    }

    main .case{
        position: relative;
        padding: 80px 0px 205px;
    }
    main .case .lftNav{
        display: none;
        align-items: flex-end;
        position: fixed;
        top: 20%;
        z-index: 2;
        transition: transform .35s;
        right: 100vw;
        white-space: nowrap;
    }
    main .case .lftNav.active{
        transform: translateX(calc(50vw - 565px));
    }
    main .case .lftNav li{
        cursor: pointer;
        font-size: 18px;
        position: relative;
        padding-right: 20px;
        margin-top: 20px;
        transition: color .4s;
        line-height: 1;
    }
    main .case .lftNav li:hover,
    main .case .lftNav li.active{
        color: #0c7faf;
    }
    main .case .lftNav li:first-child{
        margin-top: 0px;
    }
    main .case .lftNav li .dc{
        width: 10px;
        position: absolute;
        right: 0px;
    }
    main .case .lftNav li:hover .dc img,
    main .case .lftNav li.active .dc img{
        opacity: 0;
    }
    main .case .lftNav li:hover .dc img:last-child,
    main .case .lftNav li.active .dc img:last-child{
        opacity: 1;
    }
    main .case::before{
        content: '';
        width: 50%;
        z-index: -1;
        background-color: #eee;
    }
    main .case .inner{
        position: relative;
    }
    main .case .inner .cate{
        padding-top: 0px !important;
        padding-bottom: 50px;
        font-size: 18px;
    }
    main .case .inner .cate a:first-child{
        margin-left: 0px;
    }
    main .case .inner .cate a{
        margin-left: 48px;
        color: #999;
        position: relative;
        transition: .4s color;
        padding-bottom: 8px;
    }
    main .case .inner .cate a:hover{
        color: #309CD4;
    }
    main .case .inner .cate a::after{
        content: '';
        position: absolute;
        width: 100%;
        height: 1px;
        background: #309CD4;
        left: 0px;
        bottom: 0px;
        opacity: 0;
        transition: opacity .4s;
    }
    main .case .inner .cate a.active::after{
        opacity: 1;
    }
    main .case .inner .load{
        position: fixed;
        z-index: 5;
        right: 0px;
        transform: translateX(100%);
        width: 50px;
        top: 50% !important;
        border-radius: 50%;
        background-color: #fff;
        box-shadow: 0px 0px 4px 2px rgba(0,0,0,.1);
        transition: right .35s,transform .35s;
    }
    main .case .inner .load.active{
        right: calc(50vw - 645px);
        transform: translateX(0px);
    }
    main .case .inner .load img{
        width: 55%;
    }
    main .case .inner .load .fill{
        transform: rotate(180deg);
    }
    main .case .palace .item{
        width: 50%;
        position: relative;
        padding: 0 45px 0px 100px;
        line-height: 1;
        opacity: 0;
        transform: translateY(30px);
        transition: opacity .5s,transform .5s;
    }
    main .case .palace .item.frozen{
        opacity: 1;
        transform: translateY(0px);
    }
    main .case .palace .item:nth-child(n + 3){
        margin-top: 100px;
    }
    main .case .palace .item .pic .code{
        z-index: 2;
        opacity: 0;
        display: block;
        width: 40%;
        max-width: 200px;
        transition: opacity .5s;
    }
    main .case .palace .item a:hover .pic .code{
        opacity: 1;
    }
    main .case .palace .item a{
        display: block;
    }
    main .case .palace .item .pic{
        position: relative;
        background-color: #000;
    }
    main .case .palace .item .pic .fill{
        overflow: hidden;
    }
    main .case .palace .item .fill img{
        transition: transform .5s,opacity .5s;
    }
    main .case .palace .item a:hover .fill img{
        transform: scale(1.1);
    }
    main .case .palace .item.hasCode a:hover .fill img{
        opacity: .7;
    }
    main .case .palace .item .pic::before{
        padding-bottom: 65%;
    }
    main .case .palace .item .pic span{
        font-size: 48px;
        line-height: .7;
        font-weight: bold;
        position: absolute;
        bottom: 0px;
        text-align: right;
        right: -45px;
        transform: translateY(50%);
        transition: letter-spacing .3s;
    }
    main .case .palace .item a:hover .pic span{
        letter-spacing: 8px;
    }
    main .case .palace .item .name{
        font-size: 18px;
        margin: 12px 0px 8px;
        position: relative;
        padding-right: 20px;
    }
    main .case .palace .item .name img{
        right: 0px;
        width: 8px;
    }
    main .case .palace .item .type{
        font-size: 14px;
        color: #c2c2c2;
    }

    @media(max-width:1600px){
        main .case .inner .load{
            width: 3.125vw;
            top: calc(100% + 3.75vw);
        }
        main .case .inner .cate{
            padding-top: 56px;
        }
    }

    @media(max-width:1450px){
        main .case .lftNav li{
            font-size: 14px;
        }
    }

    @media(max-width:1400px){
        main .case{
            padding: 70px 0px 12.8vw;
        }
        main .case .palace .item{
            padding: 0 3.2vw 0px 7.1vw;
        }
        main .case .palace .item .pic span{
            font-size: 3.4vw;
            right: -3.2vw;
        }
        main .case .inner .cate{
            padding-bottom: 40px;
        }
    }

    @media(max-width:1200px){
        main .case .inner .cate{
            padding-top: 48px;
            font-size: 16px;
        }
    }

    @media(max-width:1024px){
        main .case{
            padding-top: 56px;
        }
        main .case .inner .cate{
            padding-top: 36px;
            padding-bottom: 36px;
        }
        main .case .inner .cate a{
            margin-left: 30px;
        }
        main .case .palace .item .name{
            font-size: 16px;
            padding-right: 15px;
        }
        main .case .palace .item .name img{
            width: 7px;
        }
        main .case .palace .item:nth-child(n + 3) {
            margin-top: 7.1vw;
        }
        
    }

    @media(max-width:800px){
        main .case .palace .item .name{
            font-size: 14px;
            margin: 10px 0px 7px;
        }
        main .case .palace .item .type{
            font-size: 12px;
        }
        main .case .inner .load{
            width: 24px;
        }
    }

    @media(max-width:540px){
        main .case{
            padding: 45px 0px 70px;
        }
        main .case .inner .cate{
            padding: 24px 0px;
            font-size: 14px;
        }
        main .case .palace .item{
            width: 100%;
            padding: 0px;
        }
        main .case .palace .item:nth-child(n + 2){
            margin-top: 20px;
        }
        main .case .palace .item .pic span{
            right: 0px;
            font-size: 8vw;
        }
    }

    @media(max-width:480px){
        main .case{
            padding-top: 32px;
        }
        main .case .inner .cate{
            font-size: 12px;
            padding: 20px 0px;
        }
        main .case .inner .cate a{
            padding-bottom: 4px;
            margin-left: 16px;
        }
    }