.index-banner-box{
    width: 100%;
    display: none;
    position: relative;
    overflow: hidden;
    margin-top: 90px;
}
.index-banner-box,
.index-banner-list,
.index-video-box,
.index-video,
.index-video-bg{
    height: calc(100vh - 90px);
}
.index-banner-list-box{
    width: 100%;
    display: block;
    position: relative;
    pointer-events: none;
    
}
.index-banner-list{
    width: 100%;
    display: block;
    position: relative;
}
.index-banner-list span{
    height: 100%;
    width: 100%;
    display: block;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}
.index-banner{
    width: 100%;
    height: 100%;
    display: block;
    position: relative;
}
.index-banner canvas{
    position: absolute;
    top: 0;
    left: 0;
}
.index-video-mask{
    width: 100%;
    height: 100%;
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    background-color: #000;
    opacity: 0.4;
    z-index: 5;
}
.index-video-box{
    width: 100%;
    display: block;
    position: relative;
}
.index-video{
    width: 100%;
    height: 100%;
    position: relative;
    z-index: 5;
    display: block;
}

.index-video-bg{
    width: 100%;
    height: 100%;
    display: block;
    position: absolute;
    z-index: 1;
    top: 0;
    left: 0;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}

.index-banner-slong-box{
    width: 50%;
    display: block;
    position: absolute;
    top: 30%;
    left: 25%;
    z-index: 5;
    pointer-events: none;
}
.index-banner-slong,
.index-video-slong{
    width: 100%;
    display: block;
    z-index: 9;
    cursor: context-menu;
}
.index-banner-slong p,
.index-video-slong p{
    font-size: 48px;
    color: #000;
    font-family: 'roboto';
    font-weight: 700;
    letter-spacing: 0.1em;
    line-height: 1;
}
.index-banner-slong span,
.index-video-slong span{
    font-size: 20px;
    color: #666;
    font-family: 'roboto';
    letter-spacing: 0.1em;
    line-height: 48px;
}
.index-video-open{
    display: none;
}
.not-banner{
    display: none;
}



@media only screen and (max-width: 1300px){
    .index-banner-slong-box{
        left: 20%;
    }
}
@media only screen and (max-width: 1000px){
    .index-banner-box{
        margin-top: 63px;
    }
    .index-banner-box, 
    .index-banner-list, 
    .index-video-box, 
    .index-video, 
    .index-video-bg {
        height: 600px
    }
    .index-banner-slong-box {
        left: 15%;
    }
}
@media only screen and (max-width: 768px){
    .index-banner-box, 
    .index-banner-list, 
    .index-video-box, 
    .index-video, 
    .index-video-bg {
        height: 450px
    }
    .index-banner-slong-box {
        width: 70%;
    }
    .index-banner-slong p, 
    .index-video-slong p{
        font-size: 36px;
        line-height: 36px;
    }
    .index-banner-slong span, 
    .index-video-slong span{
        font-size: 18px;
        line-height: 36px;
    }
}
@media only screen and (max-width: 550px){
    .index-banner-box, 
    .index-banner-list, 
    .index-video-box, 
    .index-video, 
    .index-video-bg {
        height: 60vw
    }
    .index-banner-slong-box {
        width: 50%;
        left: 5%;
    }
    .index-banner-slong p, 
    .index-video-slong p{
        font-size: 26px;
        line-height: 26px;
    }
    .index-banner-slong span, 
    .index-video-slong span{
        font-size: 14px;
        line-height: 26px;
        display: inline-block;
        margin-top: 5px;
    }
}