.index-banner-box{
    width: 1900px;
    max-width: calc(100vw - 20px);
    margin: 0 auto;
    display: block;
    position: relative;
    overflow: hidden;
    margin-top: 92px;
}
.index-banner-box,
.index-banner-list,
.index-video-box,
.index-video,
.index-video-bg,
.index-banner-list span{
     height: calc(100vh - 92px);
}
.slider-nav{
    position: absolute;
    z-index: 1000;
    font-size: 0px;
    width: 20px;
    text-align: center;
    right: 2%;
    top: 0;
    height: 100%;
    text-align: center;
    display: -webkit-flex;
    display: flex;
    -webkit-justify-content: center;
    justify-content: center;
    flex-direction: column;
}
.slider-nav li{
    width: 10px;
    height: 10px;
    opacity: 0.5;
    background-color: #FFF;
    display: block;
    border-radius: 50%;
    display: inline-block;
    margin-bottom: 10px;
}
.slider-nav li.active{
    opacity: 1;
}
.index-banner-list-box{
    width: 100%;
    display: block;
    position: relative;
    
}
.index-banner-list{
    width: 100%;
    display: block;
    
}
.index-banner-list span{
   
    width: 100vw;
    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: 1000;
    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: 999;
    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-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;
}

.index-box{
    width: 100%;
    padding: 120px 0; 
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    background-image: url(../img/index-bg.jpg);
    padding-top: 50px;
}
.index-slong-box{
    width: 100%;
    height: 490px;
    overflow: hidden;
    position: relative;
}
.index-slong{
    height: 100%;
    text-align: center;
    position: relative;
    z-index: 1;
    color: #FFF;
    display:         flex;
    display: -webkit-flex;
    align-items: center;
    -webkit-align-items: center;
    justify-content: center;
    -webkit-justify-content: center;
    flex-direction:column;
    padding-bottom: 100px;
    box-sizing: border-box;
}
.index-slong-bg-box{
    width: 100%;
    height: 100%;
    display: block;
    overflow: hidden;
    position: absolute;
}


.index-slong-bg{
    width: 100%;
    height: 100%;
    display: block;
    transform: rotate(-4deg);
    position: relative;
    top: 23%;
}
.index-slong-bg2{
    width: 100%;
    height: 100%;
    display: block;
    background-image: url(../img/index-slong-bg.jpg);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    position: relative;
    transition: all .5s ease;

}
.index-slong1{
    font-size: 28px;
    letter-spacing: 2px;
}

.index-slong1 span{
    font-size: 24px;
     letter-spacing: 2px;
}
.index-slong2{
    margin-top: 30px;
    font-size: 30px;
     letter-spacing: 2px;
}
.index-service-box{
    padding-top: 50px;
}


.index-service-title{
    font-size: 36px;
    letter-spacing: 2px;
    color: #2c4e8b;
    display: block;
    text-align: center;
    padding: 50px 0;
}

.index-service-list-box{
    font-size: 0;
    width: 1200px;
    max-width: 100%;
    display: block;
    margin: 0 auto;
}
.index-service-list{
    width: 360px;
    max-height: 100%;
    display: inline-block;
    transition: all 1s linear;
    opacity: 0;
    box-shadow: rgba(0,0,0,0.8)0px 0px 0px;
}
.index-service-list:nth-child(3n+2){
    margin: 0 60px;
}
.index-service-img{
    width: 100%;
    height: 300px;
    display: block;
    overflow: hidden;
}
.index-service-img span{
    width: 100%;
    height: 100%;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    display: block;
    transition: all .5s ease;
}
.index-service-list-title{
    text-align: center;
    width: 100%;
    display: block;
    position: relative;
    height: 60px;
    line-height: 60px;
    overflow: hidden;
}
.index-service-list-title span{
    font-size: 20px;
    color: #555;
    display: block;
    position: relative;
    z-index: 1;
    transition: all .5s ease;
}
.index-scroll-box{
    width: 48px;
    display: block;
    position: absolute;
    bottom: 20px;
    z-index: 9999;
    color: #FFF;
    text-align: center;
    left: calc(50% - 24px);

}
.index-scroll-box i{
    display: block;
    font-size: 33px;
    animation: fadeUpout-banner-arrow 1s linear 0s infinite alternate;
}

.index-scroll-box span{
    display: block;
    font-size: 16px;
    transition: all .5s ease;
}
#index-scroll{
    position: relative;
    top: -75px;
}
.index-slong-bg-mask{
    width: 120%;
    height: 120%;
    position: absolute;
    display: block;
    transform: rotate(4deg);
    left: -10%;
    top: -34%;
    overflow: hidden;
}

/*過場動畫*/

.dt-loading-2 {
    width: 100%;
    height: 100vh;
    display: table;
    position: fixed;
    top: 0;
    z-index: 99999;
    transition: all .4s linear;
    background-color: #FFF;
}

.laying-2 {
   display: table-cell;
   vertical-align: middle;
}

.loading-logo-box{
    width: 154px;
    display: block;
    position: relative;
    margin: 0 auto;
    overflow: hidden;
}
.loading-log{
    width: 100%;
    display: block;
    position: relative;
 
}
.loading-mask{
    width: 100%;
    height: 100%;
    display: block;
    position: absolute;
    top: 0;
    background: #FFF;
    right: 0%;
    animation:  right2 2s linear 0s 1 forwards;

}