.index-banner-box{
    width: 100%;
    display: block;
    position: relative;
    overflow: hidden;
    background-color: #000;
}
.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{
    opacity: 0.3;
}
.index-banner{
    width: 100%;
    height: 100%;
    display: block;
    position: relative;
}

.index-video-mask{
    width: 100%;
    height: 100%;
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0.2;
    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-logo-box{
    width: 100%;
    height: 100%;
    display: flex;
    display: -webkit-flex;
    align-items: center;
    -webkit-align-items: center;
    justify-content: center;
    -webkit-justify-content: center;
    flex-direction:column;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 5;
    pointer-events: none;
    text-align: center;
    box-sizing: border-box;
    padding: 80px 10vw;
}
.index-banner-logo{
    position: relative;
}
.index-video-slong{
    width: 100%;
    text-align: center;
    color: #FFF;
    display: block;
    position: absolute;
    z-index: 9;
    top: 48%;
    text-shadow: rgba(0,0,0,0.6) 2px 2px 2px;
    cursor: context-menu;
}
.index-video-open{
    display: none;
}
.not-banner{
    display: none;
}

.index-banner-scroll-box{
    width: 100%;
    display: block;
    position: absolute;
    bottom: 0;
    left: 0;
    text-align: center;
    z-index: 6;
    box-sizing: border-box;
    padding: 15px 0;
}
.index-banner-scroll{
    display: inline-block;
    vertical-align: middle;
}
.index-banner-scroll p{
    font-size: 12px;
    font-family: 'Noto Sans TC';
    font-weight: 300;
    line-height: 30px;
    color: #fff;
    letter-spacing: 0.06em;
    box-sizing: border-box;
    padding-left: 0.06em;
    opacity: 0;
    transition: all .3s linear;
}
.index-banner-scroll span{
    width: 1px;
    height: 60px;
    display: block;
    margin: 0 auto;
    /* background-color: #ccc; */
    position: relative;
    transition: all .3s linear;
}

.bannerScroll-class{
    position: relative;
    top: -80px;
}



@media only screen and (max-width: 768px){
    .index-banner-logo{
        width: 40vw;
    }
    .index-banner-scroll-box{
        display: none;
    }
}



@media only screen and (min-width: 769px){
    .index-banner-scroll:hover p{
        opacity: 1;
        transform: translateY(20px);
    }
    .index-banner-scroll span::before{
        content: '';
        width: 100%;
        height: 100%;
        background-color: #ccc;
        position: absolute;
        bottom: 0;
        left: 0;
        transition: all .3s linear;
    }
    .index-banner-scroll span::after{
        content: '';
        width: 0;
        height: 0;
        border-top: 6px solid #ccc;
        border-left: 5px solid transparent;
        border-right: 4px solid transparent;
        position: absolute;
        bottom: 0;
        left: -4px;
        opacity: 0;
        display: block;
        transform: translateY(-10px);
        transition: all .3s linear;
    }
    .index-banner-scroll:hover span::before{
        height: 60%;
    }
    .index-banner-scroll:hover span::after{
        opacity: 1;
        transform: translateY(0%);
    }




}
    
.loading-log-2_1{
    animation: fadeInDown .5s linear 0s 1 both;
}
.loading-log-2_2{
    animation: fadeInDown .5s linear .1s 1 both;
}
.loading-log-2_3{
    animation: fadeInDown .5s linear .2s 1 both;
}
.loading-log-2_4{
    animation: fadeInDown .5s linear .3s 1 both;
}
.loading-log-3{
    animation: fade .5s linear .8s 1 both;
}