body, div, ul ,li{
    margin: 0;
    padding: 0;
}
body{
    background-color: #5e9dc8;
}
header{
    position: fixed;
    top: 0;
    background-color: #fff;
    z-index: 100;
}
header, main, footer{
    width: 100%;
}
main{
    overflow: hidden;
}
header img, main img, footer img{
    width: 100%;
    vertical-align: middle;
    height: auto;
}
#logo{
    width: 70vw;
}
#menu{
    width: 20vw;
    position: absolute;
    right: 0;
    top: 0;
}
.nav{
    background: #fff;
    height: 100vh;
    display: none;
    justify-content: center;
    align-items: center;
}
.nav.action{
    display: flex;
}
.nav ul{
    width: 45vw;
    margin: 0 27.5vw;
}
.nav ul li:nth-of-type(n+2){
    padding-bottom: 20px;
}
.nav ul li:nth-of-type(n+2){
    background: transparent url("../images/hr.jpg") top center no-repeat;
    padding-top: 20px;
    background-size: contain;
}
ul{
    list-style: none;
    width: 100%;
}
/*nav{
    display: none;
    width: 100%;
    line-height: 100px;
    background-color: red;
    height: 100vh;
    text-align: center;
    color: white;
    font-size: 32px;
}*/
.box{
    position: relative;
}
nav.open{
    display: block;
}
.ani-box{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
}
.ani{
    /*position: absolute;*/
    display: none;
    margin-bottom: 20px;
    position: relative;
}
.box-5 .ani{
    margin-bottom: 0;
}
.nav-5-2{
    text-align: center;
}
.nav-2-2{
    position: absolute;
    top:32vw;
}
.nav-2-2 li{
    width: 50%;
    float: left;    
}
.nav-2-2 li a{
    display: block;
    width: 100%;
    height: 15vw;    
}
.nav-5-2 li{
    width: 30vw;
    display: inline-block;
    cursor: pointer;
}
.nav-5-3 li{
    display: none;
}
.nav-5-3 li.action{
    display: block;
}
.nav-8-1{
    position: absolute;
    top:100vw;
}
.nav-8-1 li a{
    display: block;
    width: 100%;
    height: 16vw;   
}
.nav-10-2{
    position: absolute;
    top:46vw;
}
.nav-10-2 li{
    float: left;
    width: 33.3%;
}
.nav-10-2 li a{
    display: block;
    width: 100%;
    height: 20vw;   
}
.box-10 .ani{
    margin-bottom: 0;
}
.videobox {
    position: relative;
    width: 92vw;
    height: 0;
    padding-bottom: calc(92vw * 0.5625);
    margin-left: 4vw;
}

.videobox iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}
.cloud{
    position: absolute;
    overflow-x: hidden;
    top:-40vw;
    height: 100vw;
}
.finger{
    width: 38.3vw;
    top:2vw;
    right: 0;
    position: absolute;
    right: -45.8vw;
    margin-right: 7.5vw;
    opacity: 0;
}
.cloud li{
    position:absolute;
    width:50vw;
    top:5vw;
    animation:cloud1 4s linear infinite both;
}
.cloud li:nth-of-type(1){
    width:50vw;
    top:0;
    animation:cloud1 113s linear infinite both;
}
.cloud li:nth-of-type(2){
    width:60vw;
    top:4vw;
    animation:cloud2 229s linear infinite both;
}
.cloud li:nth-of-type(3){
    width:70vw;
    top:8vw;
    animation:cloud3 463s linear infinite both;
}
.cloud li:nth-of-type(4){
    width:80vw;
    top:20vw;
    animation:cloud1 331s linear infinite both;
}
.cloud li:nth-of-type(5){
    width:90vw;
    top:16vw;
    animation:cloud5 617s linear infinite both;
}
@keyframes cloud1{
    0%{
        left:-50vw;
    }
    100%{
        left:100vw;
    }
}
@keyframes cloud2{
    0%{
        left:60vw;
        opacity: 1;
    }
    24%{
        left:100vw;
        opacity: 1;
    }
    25%{
        left:100vw;
        opacity: 0;
    }
    26%{
        left:-80vw;
        opacity: 0;
    }
    27%{
        left:-80vw;
        opacity: 1;
    }
    100%{
        left:40vw;
        opacity: 1;
    }
}
@keyframes cloud3{
    0%{
        left:20vw;
        opacity: 1;
    }
    55%{
        left:100vw;
        opacity: 1;
    }
    56%{
        left:100vw;
        opacity: 0;
    }
    57%{
        left:-80vw;
        opacity: 0;
    }
    58%{
        left:-80vw;
        opacity: 1;
    }
    100%{
        left:20vw;
        opacity: 1;
    }
}
@keyframes cloud5{
    0%{
        left:0;
        opacity: 1;
    }
    49%{
        left:100vw;
        opacity: 1;
    }
    50%{
        left:100vw;
        opacity: 0;
    }
    51%{
        left:-100vw;
        opacity: 0;
    }
    52%{
        left:-100vw;
        opacity: 1;
    }
    100%{
        left:0;
        opacity: 1;
    }
}
@media screen and (max-width: 1023px){
    .videobox {
        margin-bottom: 7vw;
    }
}
@media screen and (min-width: 1024px) {
    /*nav{
        position: absolute;
        top:0;
        left: 40%;
        width: 40%;
        color: transparent;
        background-color: transparent;
        height: 100px;
        font-size: 6px;
        display: block;
    }
    li{
        width: 25%;
        float: left;
    }*/
    header{
        display: none;
    }
    #logo{
        width: 30vw;
    }
    #menu{
        display: none;
    }
    header.action{
        display: block;
    }
    .nav{
        background: #fff;
        height: auto;
        display: block;
    }
    .nav ul{
        width: 65vw;
        margin: 0;
        position: absolute;
        right: 0;
        top: 0;
        display: block;
    }
    .nav ul li{
        width: 15vw;
        float: left;
    }
    .nav ul li:nth-of-type(n+2){
        padding-top: 0;
    }
    .nav ul li:nth-of-type(n+2){
        margin-right: -2.5vw;
    }
    .nav-2-2{
        top:10vw;
        left: 25%;
        width: 59%;
    }
    .nav-2-2 li{
        width: 25%;  
    }
    .nav-2-2 li a{
        height: 6vw; 
    }
    .nav-5-2 li{
        width: 15vw;
    }
    .nav-8-1{
        position: absolute;
        top:25vw;
    }
    .nav-8-1 li{
        width: 50%;
        float: left;
    }
    .nav-8-1 li a{
        height: 5vw;   
    }
    .ani-8-2, .ani-8-3{
        width: 50%;
        float: left;
    }
    .nav-10-2{
        top:3vw;
        width: 28%;
        left: 57%;
    }
    .nav-10-2 li{
        width: 33%;
    }
    .nav-10-2 li a{
        height: 6vw;   
    }
    .ani-box{
        left: 7.25vw;
        width: 85vw;
    }
    .ani-4-1{
        width: calc(100% / 0.85);
        margin-left: -7.5vw;
    }
    .box-10 .ani-box{
        width: 100%;
        left: 0;
    }
    .videobox {
        width: 46%;
        margin-left: 27%;
        padding-bottom: calc(46vw * 0.5625);
    }
    .finger{
        width: 34vw;
        top:-3.3vw;
        right: -7.25vw;
        right: -41.25vw;
        margin-right: 0;
    }
    .box-5 .ani{
        margin-bottom: -3.5vw;
    }
    .cloud{
        top:-15vw;
    }
    .cloud li:nth-of-type(1){
        width:50vw;
        top:0;
    }
    .cloud li:nth-of-type(2){
        width:60vw;
        top:3vw;
    }
    .cloud li:nth-of-type(3){
        width:70vw;
        top:6vw;
    }
    .cloud li:nth-of-type(4){
        width:80vw;
        top:9vw;
    }
    .cloud li:nth-of-type(5){
        width:90vw;
        top:12vw;
    }
}