.banner .slide-banner .swiper-slide video {
        display: block;
    }

    .banner .slide-banner .swiper-slide {
        overflow: hidden;
    }

    .banner .slide-banner .swiper-slide-active .sc {
        transform: scale(1);
    }

    .banner .slide-banner .sc img {
        width: 100%
    }

    .banner .slide-banner .sc {
        transform: scale(1.1);
        transition: linear 5s;
        width: 100%
    }

    .banner .slide-banner .imgPc a.pic {
        position: relative;
        display: block;
        height: 100vh;
        overflow: hidden;
    }

    .banner .slide-banner .imgPc a.pic img {
        position: absolute;
        left: 50%;
        top: 50%;
        min-height: 100%;
        min-width: 100%;
        max-width: 1000%;
        max-height: inherit;
        transform: translate(-50%, -50%);
    }

    .banner .slide-banner a.pic:after {
        position: absolute;
        content: '';
        left: 0;
        bottom: 0;
        right: 0;
        z-index: 1;
        height: 30%;
        background: url(../images/bamask.png) no-repeat bottom center;
        background-size: 101% 101%
    }

    .banner .slide-banner h4 {
        position: absolute;
        left: .5rem;
        bottom: .9rem;
        z-index: 5;
        right: .5rem;
        color: #fff;
        font-size: .28rem;
        display: block;
        line-height: 1.4em
    }

    .banner .slide-banner h4 a {}

    .banner .swiper-pagination-bullets {
        width: auto;
        left: 50%;
        transform: translate(-50%);
    }

    .banner .swiper-pagination-bullets .swiper-pagination-bullet {
        width: auto;
        height: auto;
        opacity: 1;
        color: #92bcf3;
        background: transparent;
        border-radius: 0;
        font-size: .24rem;
        margin: 0 6px;
        transition: .3s
    }

    .banner .swiper-pagination-bullets .swiper-pagination-bullet:before {
        content: "\e601";
        font-family: "iconfont" !important;
    }

    .banner .swiper-pagination-bullets .swiper-pagination-bullet-active {
        opacity: 1;
        color: #fff;
        font-size: .32rem
    }

    .banner .slide-banner .imgM {
        display: none
    }


    #main-content-region {
        background: #fff;
        z-index: 3;
        position: fixed;
        top: 100%;
        left: 0;
        right: 0;
        bottom: 0;
        transition: all .7s cubic-bezier(.5, 0, .2, 1) 0s;
        -webkit-transition: all .7s cubic-bezier(.5, 0, .2, 1) 0s;
        -moz-transition: all .7s cubic-bezier(.5, 0, .2, 1) 0s;
        -ms-transition: all .7s cubic-bezier(.5, 0, .2, 1) 0s;
        -o-transition: all .7s cubic-bezier(.5, 0, .2, 1) 0s;
        overflow: hidden;
        overflow-y: scroll;
    }

    #main-content-region.showdiv {
        top: 0;
    }

    .banner .swiper-slide a {
        display: block;
        height: calc(100vh);
        width: 100%;
        position: relative;
    }

    .banner .swiper-slide a .sc {
        height: 100%
    }

    .banner .slide-video .videoU {
        display: -webkit-box;
        display: -webkit-flex;
        display: -moz-box;
        display: -ms-flexbox;
        display: flex;
        position: relative;
        -webkit-box-align: center;
        -webkit-align-items: center;
        -moz-box-align: center;
        -ms-flex-align: center;
        align-items: center;
        -webkit-box-orient: horizontal;
        -webkit-box-direction: normal;
        -webkit-flex-direction: row;
        -moz-box-orient: horizontal;
        -moz-box-direction: normal;
        -ms-flex-direction: row;
        flex-direction: row;
        -webkit-justify-content: space-around;
        -ms-flex-pack: distribute;
        justify-content: space-around;
        height: calc(100vh - 1.05rem);
        overflow: hidden
    }

    .banner .slide-video video {
        min-width: 100%;
        min-height: 100%;
        position: absolute;
        bottom: 0;
        left: 50%;
        -webkit-transform: translate3d(-50%, 0, 0);
        transform: translate3d(-50%, 0, 0)
    }

  .banner {
    overflow: hidden;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 0;
}
    .fix-top {
        height: 100vh;
        position: relative;
        top: 0;
        transition: all .7s cubic-bezier(.5, 0, .2, 1) 0s;
        -webkit-transition: all .7s cubic-bezier(.5, 0, .2, 1) 0s;
        -moz-transition: all .7s cubic-bezier(.5, 0, .2, 1) 0s;
        -ms-transition: all .7s cubic-bezier(.5, 0, .2, 1) 0s;
        -o-transition: all .7s cubic-bezier(.5, 0, .2, 1) 0s;
        z-index: -1;
        display: none;
    }

    .fix-top.fixed {
        height: 1.3rem;
    }

    .fixed .banner {
        display: none
    }

    @media screen and (max-width:1200px) {
        .banner {
            position: relative;
            top: 0
        }

        .banner .swiper-slide a {
            height: auto;
            background: 0 0
        }

        .banner .swiper-slide .sc {
            height: auto;
            background: 0 0
        }

        .banner .swiper-slide a img {
            display: block
        }

        .fix-top {
            display: none
        }
    }


    @media screen and (min-width:1921px) {
        .banner .wp1600 {
            width: 83.333333%;
            max-width: inherit;
        }

        .header .wp1600 {
            width: 83.333333%;
            max-width: inherit;
        }
    }


    @media screen and (max-width: 1366px) {
        .banner .slide-banner .imgPc a.pic {
            height: auto;
            overflow: hidden;
        }

        .banner .slide-banner .imgPc a.pic img {
            position: static;
            left: 50%;
            width: 100%;
            transform: translate(0, 0);
        }
    }

    @media screen and (max-width: 640px) {
        .banner .swiper-pagination-bullets .swiper-pagination-bullet {
            width: .3rem;
            height: 3px;
        }

        .slide-banner .swiper-pagination {
            bottom: .15rem
        }
    }

    @media screen and (max-width:980px) {
        .wp {
            width: 90%
        }

        .header {
            display: none
        }

        .headerm {
            display: flex;
        }

    }

    @media screen and (max-width:980px) {
        html {
            font-size: 80px !important;
        }

        .banner .slide-banner h4 {
            position: absolute;
            left: 5%;
            bottom: .6rem;
            z-index: 5;
            right: 5%
        }

        .banner .slide-banner h4 a {
            font-size: .22rem;
            text-align: center;
            font-weight: bold;
        }

        .banner .swiper-pagination-bullets {
            width: 100%;
        }

        .slide-banner .swiper-pagination {
            bottom: .2rem
        }
    }

    @media screen and (max-width:640px) {
        .menu-btn {
            margin-left: 20px
        }

        .headerm {
            height: 55px
        }

        html {
            font-size: 75px !important;
        }

        .banner .slide-banner .imgM {
            display: block;
        }

        .banner .slide-banner .imgPc {
            display: none;
        }

        .banner .slide-banner h4 a {
            font-size: .21rem;
        }
    }