.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{
    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,
.index-video-slong{
    width: 100%;
    text-align: center;
    font-size: 36px;
    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-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: 100%;
    display: block;
    position: absolute;
    top: 48%;
    left: 0;
    z-index: 5;
    pointer-events: none;
    text-align: center;
}
.index-video-open{
    display: none;
}
.not-banner{
    display: none;
}
.index-banner-logo-box{
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 9;
    display:         flex;
    display: -webkit-flex;
    align-items: center;
    -webkit-align-items: center;
    justify-content: center;
    -webkit-justify-content: center;
    flex-direction: column;
}
.index-banner-menu-box{
    position: absolute;
    top: calc(70% - 200px);
    left: 15%;
    z-index: 10;
}
.index-banner-menu-text-box{
    display: block;
    width: initial;
    margin: 20px 0;
}
.index-banner-menu-text-box span{
    width: 30px;
    height: 30px;
    display: inline-block;
    vertical-align: middle;
    margin-right: 10px;
}
.index-banner-menu-text{
    font-size: 20px;
    color: #fff;
    letter-spacing: 0.2em;
    display: inline-block;
    vertical-align: middle;
    position: relative;
}
.index-banner-menu-text:after{
    content: '';
    width: 0%;
    height: 1px;
    background-color: #fff;
    position: absolute;
    bottom: 1px;
    left: 0;
    transition: all .3s linear;
}
.index-banner-menu-text-box span>img:nth-child(2),
.index-banner-menu-text-box:hover span>img:nth-child(1){
    display: none;
}
.index-banner-menu-text-box:hover span>img:nth-child(2){
    display: block;
}
.index-banner-menu-text-box:hover .index-banner-menu-text:after{
    width: 100%;
}


@media only screen and (max-width: 1000px){
    .index-banner-menu-box{
        left: 10%;
    }
}
@media only screen and (max-width: 750px){
    .index-banner-logo-box{
        width: 100px;
        height: initial;
        position: static;
        display: block;
    }
    .index-banner-menu-box{
        width: 250px;
        position: static;
    }
    .index-banner-logo-box span{
        width: 100%;
    }
    .index-banner-other-box{
        position: absolute;
        top: 0;
        left: 0;
        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: row-reverse;

    }
}
@media only screen and (max-width: 550px){
    .index-banner-logo-box{
        width: 80px;
    }
    .index-banner-menu-box{
        width: 200px;
    }
    .index-banner-menu-text-box{
        margin: 15px 0;
    }
    .index-banner-menu-text{
        font-size: 16px;
        letter-spacing: 0.1em;
    }
    .index-banner-menu-text-box span{
        width: 25px;
        height: 25px;
        margin-right: 5px;
    }
}




.index-banner-logo-box{
    animation: loading_logo_banner .1s ease 2s 1 both;
}
.index-banner-menu-text-box:nth-child(1){
    animation: fadeInRight 1s ease 1.4s 1 both;
}
.index-banner-menu-text-box:nth-child(2){
    animation: fadeInRight 1s ease 1.6s 1 both;
}
.index-banner-menu-text-box:nth-child(3){
    animation: fadeInRight 1s ease 1.8s 1 both;
}
.index-banner-menu-text-box:nth-child(4){
    animation: fadeInRight 1s ease 2s 1 both;
}
.index-banner-menu-text-box:nth-child(5){
    animation: fadeInRight 1s ease 2.2s 1 both;
}

/*animation*/
/*<-------------動畫------------->*/

@keyframes loading_logo_banner {
    0%{
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}