.index-banner-box{
    width: 100%;
    display: block;
    position: relative;
    overflow: hidden;
    margin-top: 100px;
}
.index-banner-box,
.index-banner-list,
.index-video-box,
.index-video,
.index-video-bg{
    height: calc(100vw * 0.3125);
}
.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-video-mask{
    width: 100%;
    height: 100%;
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    background-color: #000;
    opacity: 0.4;
    z-index: 5;
    pointer-events: none;
}
.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-text,
.index-video-text{
    width: calc(100% / 5);
    text-align: center;
    font-size: 16px;
    line-height: 46px;
    color: #FFF;
    z-index: 9;
    font-family: 'Noto Serif TC';
    font-weight: 900;
    letter-spacing: 2px;
    cursor: pointer;
    display: inline-block;
    vertical-align: middle;
    opacity: 0.5;
    position: relative;
}
.index-banner-text:after,
.index-video-text:after{
    content: '';
    border-left: 10px solid transparent;
    border-bottom: 10px solid #017cc2;
    border-right: 10px solid transparent;
    position: absolute;
    top: -10px;
    left: calc(50% - 10px);
    display: none;
}
.index-banner-text.slick-current,
.index-video-text.slick-current{
    background-color: #017cc2;
    opacity: 1;
}
.index-banner-text.slick-current:after,
.index-video-text.slick-current:after{
    display: block;
}
.index-banner-text-all-box{
    width: 1280px;
    max-width: 100%;
    display: block;
    margin: 0 auto;
}
.index-banner-text-box{
    width: 100%;
    display: block;
    position: absolute;
    bottom: 0;
    left: 0;
    z-index: 5;
    text-align: center;
    background-color: rgba(1,124,194,0.9);
}
.index-video-open{
    display: none;
}
.not-banner{
    display: none;
}
.index-banner-text-all-box .slick-list{
    overflow: inherit;
}




@media only screen and (max-width: 1280px){
    .index-banner-text-all-box{
        width: 1200px;
    }
}
@media only screen and (max-width: 1200px){
    .index-banner-text-all-box{
        width: 1000px;
    }
    .index-banner-box{
        margin-top: 79px;
    }
    .index-banner-text, 
    .index-video-text{
        font-size: 14px;
    }
}
@media only screen and (max-width: 1000px){
    .index-banner-text-all-box{
        width: 95%;
    }
}
@media only screen and (max-width: 550px){
    .index-banner-box{
        margin-top: 56px;
    }
    .index-banner-box,
    .index-banner-list,
    .index-video-box,
    .index-video,
    .index-video-bg{
        height: 170px;
    }
    .index-banner-text, 
    .index-video-text{
        font-size: 12px;
        line-height: 30px;
    }
}

/*hover*/
.index-banner-text:hover, 
.index-video-text:hover{
    opacity: 1;
}