html{
    box-sizing: border-box;
    width: 100%;
    height: 100%;
    padding: 0px;
    margin: 0px;
}
body{
    box-sizing: border-box;
    width: 100%;
    height: 100%;
    padding: 0px;
    margin: 0px;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling : touch;
}
.main{
    display: block;
    box-sizing: border-box;
    width: 100%;
    height: auto;
    min-height: 100%;
    background: url("../images/bg.png");
    background-size: 100% 100%;
    background-repeat: no-repeat;
}
.head{
    position: relative;
}
.head .logo{
    height: 15vw;
    width: 15vw;
    position: absolute;
    top: 2vw;
    left: 4.500vw;
    border-radius: 2.800vw;
}
.c{
    display: block;
    box-sizing: border-box;
    width: 100%;
    height: auto;
    padding-left: 4vw;
    padding-right: 4vw;
    padding-top: 4.500vw;
}
.c img{
    margin-bottom: 3vw;
}
.c .h4div{
    display: block;
    box-sizing: border-box;
    width: 100%;
    position: relative;
}
.c .h4div .h4btn{
    position: absolute;
    display: block;
    width: calc(100% - 8vw);
    height: auto;
    bottom: 7.300vw;
    left: 4vw;
}
/* .c .h4div .h4btn:active{
    opacity: 0.56;
} */

.b{
    display: block;
    box-sizing: border-box;
    width: 100%;
    height: auto;
    padding-left: 4vw;
    padding-right: 4vw;
    padding-bottom: 8vw;
    position: relative;
}
.b .btn{
    width: calc(100% - 20vw);
    height: auto;
    position: absolute;
    left: 10vw;
    top: 23vw;
}
.b .btn:active{
    opacity: 0.56;
}
.su{
    display: inline-block;
    width: 12vw;
    height: auto;
    position: fixed;
    right: 0px;
    top: 60%;
    z-index: 99;
}