.index-banner-box{
    width: 100%;
    display: block;
    position: relative;
    overflow: hidden;
    margin-top: 110px;
}
.index-banner-list,
.index-video-box,
.index-video,
.index-video-bg{
    height: calc((660 / 1920) * 100vw);
}
.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%;
    display: block;
    position: relative;
}
.index-banner-small-box{
    width: 1280px;
    max-width: 100%;
    display: block;
    margin: 0 auto;
    font-size: 0;
    -webkit-transform: translate(0, -50%);
    -ms-transform: translate(0, -50%);
    transform: translate(0, -50%);
}
.index-banner-small{
    width: 380px;
    height: 200px;
    display: block;
    margin: 0 20px;
}

.index-video-mask{
    width: 100%;
    height: 100%;
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    background-color: #000;
    opacity: 0;
    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;
}

.index-banner-small-box .slick-prev, 
.index-banner-small-box .slick-next{
    width: 60px;
    height: 60px;
    background-color: #a72a2e;
    z-index: 1;
    transition: all .3s linear;
}
.index-banner-small-box .slick-prev{
    left: 0;
}
.index-banner-small-box .slick-next{
    right: 0;
}
.index-banner-small-box .slick-prev:before, 
.index-banner-small-box .slick-next:before{
    font-size: 16px;
    color: #fff;
    width: 100%;
    line-height: 60px;
    text-align: center;
    font-family: "Noto Sans TC";
    font-weight: 300;
    display: block;
    pointer-events: none;
}
.index-banner-small-box .slick-prev:before{
    content: "〈";
    transform: translateX(-5px);
} 
.index-banner-small-box .slick-next:before{
    content: "〉";
    transform: translateX(5px);
}



@media only screen and (max-width: 1280px){
    .index-banner-small-box{
        width: 1000px;
    }
    .index-banner-small{
        width: 290px;
        height: calc((200 / 380) * 290px);
        margin: 0 20px;
    }
}
@media only screen and (max-width: 1000px){
    .index-banner-small-box{
        width: 750px;
    }
    .index-banner-small{
        width: 220px;
        height: calc((200 / 380) * 220px);
        margin: 0 15px;
    }
    .index-banner-small-box .slick-prev,
    .index-banner-small-box .slick-next{
        width: 40px;
        height: 40px;
    }
    .index-banner-small-box .slick-prev:before, 
    .index-banner-small-box .slick-next:before{
        line-height: 40px;
    }
}
@media only screen and (max-width: 768px){
    .index-banner-box{
        margin-top: 85px;
    }
    .index-banner-small-box{
        width: calc(70vw - 40px);
    }
    .index-banner-small{
        width: calc(((100vw - 40px) - 30px) / 2);
        height: calc((200 / 380) * (((100vw - 40px) - 30px) / 2));
        margin: 0 5px;
    }
    .index-banner-small-box .slick-prev{
        left: -15px;
    }
    .index-banner-small-box .slick-next{
        right: -15px;
    }
    .index-banner-small-box .slick-prev,
    .index-banner-small-box .slick-next{
        width: 30px;
        height: 30px;
    }
    .index-banner-small-box .slick-prev:before, 
    .index-banner-small-box .slick-next:before{
        line-height: 30px;
    }
}



@media only screen and (min-width: 769px){
    .index-banner-small-box .slick-prev:hover{
        background-color: #78161b;
    }
    .index-banner-small-box .slick-next:hover{
        background-color: #78161b;
    }
}