.banner{
    width: 100%;
    height: 50.5vw;
}
.shutter {
    overflow: hidden;
    width: 100%!important;
    height: 100%!important;
    position: relative;
}
.shutter-img {
    z-index: 1;
}
.shutter-img,
.shutter-img a {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
}
.shutter-img a {
    cursor: default;
}
.shutter-img a > img {
    width: 100%;
    height: 100%;
}
.shutter-img .created {
    overflow: hidden;
    position: absolute;
    z-index: 20;
}
.shutter-btn{
    display:flex;
    justify-content: space-between;
    align-items: center;
    position:absolute;
    height: 50px;
    left:50%;
    top:50%;
    -webkit-transform: translate(-50%,-50%);
    -moz-transform: translate(-50%,-50%);
    -ms-transform: translate(-50%,-50%);
    -o-transform: translate(-50%,-50%);
    transform: translate(-50%,-50%);
    z-index: 1000;
}
.shutter-btn li {
    width:67px;
    height: 67px;
    border-radius: 50%;
    overflow:hidden;
    cursor: pointer;
    -webkit-transition: 350ms 0s all ease;
    -moz-transition: 350ms 0s all ease;
    -ms-transition: 350ms 0s all ease;
    -o-transition: 350ms 0s all ease;
    transition: 350ms 0s all ease;
}
.shutter-btn li.prev {
    background: rgba(0, 0, 0, 0.2) url(../Image/banjt_l.png) no-repeat center;
}
.shutter-btn li.next {
    background:rgba(0, 0, 0, 0.2) url(../Image/banjt_r.png) no-repeat center;
}
.shutter-btn li:hover{
    background-color:#003e3b;
}

.ban_text{
    position: absolute;
    top:45%;
    text-align: center;
    z-index: 999;
    color: #fff;
    left:50%;
    -webkit-transform: translateX(-50%);
    -moz-transform: translateX(-50%);
    -ms-transform: translateX(-50%);
    -o-transform: translateX(-50%);
    transform: translateX(-50%);
}
.ban_text h3{
    font-size: 6.8rem;
    font-family: alimama;
    text-shadow: 0 3px 3px #525252;
}
.ban_text p{
    font-size: 2rem;
    text-shadow: 0 3px 3px #525252;
}
.ban_des{
    display:block;
    position:absolute;
    bottom:4%;
    z-index: 999;
    color: #fff;
    text-align: right;
    font-size: 2.3rem;
    font-weight: lighter;
    left:50%;
    -webkit-transform: translateX(-50%);
    -moz-transform: translateX(-50%);
    -ms-transform: translateX(-50%);
    -o-transform: translateX(-50%);
    transform: translateX(-50%);
    text-shadow:3px 0 3px #525252;
}

.bannerdown{
    width: 110px;
    height: 85px;
    position: absolute;
    bottom:0;
    left:50%;
    -webkit-transform: translateX(-50%);
    -moz-transform: translateX(-50%);
    -ms-transform: translateX(-50%);
    -o-transform: translateX(-50%);
    transform: translateX(-50%);
    color: #fff;
    text-align: center;
    z-index: 100;
    background: none;
    cursor: pointer;
}
.bannerdown span{
    font-size: 16px;
    color: #fff;
    display:block;
    width:100%;
    font-weight: bold;
    position: absolute;
    top:0;
    left:0;
}
.bannerdown b{
    position: absolute;
    top:25px;
    left:50%;
    -webkit-transform: translateX(-50%);
    -moz-transform: translateX(-50%);
    -ms-transform: translateX(-50%);
    -o-transform: translateX(-50%);
    transform: translateX(-50%);
    display: block;
    width:2px;
    height: 60px;
    background: rgba(255, 255, 255, 0.72);
    -webkit-animation: mybannerdown 3s linear 0s infinite normal;
    -o-animation: mybannerdown 3s linear 0s infinite normal;
    animation: mybannerdown 3s linear 0s infinite normal;
}
@keyframes mybannerdown {
    0%{
        height: 0;
    }
    100%{
        height: 60px;
    }
}
@-webkit-keyframes mybannerdown {
    0%{
        height: 0;
    }
    100%{
        height: 60px;
    }
}