.index-banner-box{
    width: 100%;
    display: block;
    position: relative;
    overflow: hidden;
}
.index-banner-box,
.index-banner-list,
.index-video-box,
.index-video,
.index-video-bg{
     height: 100vh;
}
.index-banner-list-box{
    width: 100%;
    display: block;
    position: relative;
    
}
.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-slong-box{
    width: 100%;
    display: block;
    position: absolute;
    top: calc(50vh - 250px);
    left: calc(50% - 180px);
    z-index: 5;
    pointer-events: none;
    font-size: 0;
    width: 360px;
}
.index-banner-slong>p{
    width: 60px;
    font-size: 60px;
    line-height: 100px;
    color: #371268;
    display: inline-block;
    vertical-align: middle;
    cursor: context-menu;
    font-family: 'roboto';
    font-weight: 500;
    text-align: center;
}
.index-banner-slong h2{
    display: inline-block;
    vertical-align: middle;
    margin-left: 20px;
}
.index-banner-slong h2>span{
    font-size: 30px;
    color: #fff;
    letter-spacing: 0.06em;
    display: inline-block;
    vertical-align: top;
    cursor: context-menu;
    /* font-family: 'roboto'; */
    font-weight: 500;
    text-shadow: #fff 0.1em 0.1em 0.2em;
}
.index-banner-slong h2>p{
    font-size: 30px;
    line-height: 45px;
    color: #fff;
    letter-spacing: 0.06em;
    display: inline-block;
    vertical-align: top;
    font-weight: bold;
    cursor: context-menu;
    margin-left: 10px;
    text-shadow: #fff 0.1em 0.1em 0.2em;
}
.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-video-open{
    display: none;
}
.not-banner{
    display: none;
}



@media only screen and (max-width: 1000px){
    .index-banner-box, 
    .index-banner-list, 
    .index-video-box, 
    .index-video, 
    .index-video-bg{
        height: 600px;
    }
    .index-banner-slong-box{
        top: 102px;
        left: calc(50% - 140px);
        width: 280px;
    }
    .index-banner-slong>p{
        width: 40px;
        font-size: 50px;
        line-height: 80px;
    }
    .index-banner-slong h2>span {
        font-size: 24px;
    }
    .index-banner-slong h2>p {
        font-size: 24px;
        line-height: 35px;
        margin-left: 5px;
    }
}
@media only screen and (max-width: 550px){
    .index-banner-box, 
    .index-banner-list, 
    .index-video-box, 
    .index-video, 
    .index-video-bg{
        height: 300px;
    }
    .index-banner-slong-box{
        top: 73px;
        left: calc(50% - 100px);
        width: 200px;
    }
    .index-banner-slong>p{
        width: 27px;
        font-size: 30px;
        line-height: 40px;
    }
    .index-banner-slong h2{
        margin-left: 5px;
    }
    .index-banner-slong h2>span {
        font-size: 18px;
    }
    .index-banner-slong h2>p {
        font-size: 18px;
        line-height: 28px;
        margin-left: 3px;
    }
}

/* 
@media only screen and (min-width: 1001px){
    .index-banner-slong:nth-child(1){
        animation: fadeInUp 1s ease 0s 1 both;
    }
    .index-banner-slong:nth-child(2){
        animation: fadeInUp 1s ease 0.1s 1 both;
    }
    .index-banner-slong:nth-child(3){
        animation: fadeInUp 1s ease 0.2s 1 both;
    }
    .index-banner-slong:nth-child(4){
        animation: fadeInUp 1s ease 0.3s 1 both;
    }
    .index-banner-slong:nth-child(5){
        animation: fadeInUp 1s ease 0.4s 1 both;
    }
} */