html{
    height: 100%;
    width: 100%;
    box-sizing: border-box;
    padding: 0px;
    margin: 0px;
}
body{
    height: 100%;
    width: 100%;
    box-sizing: border-box;
    padding: 0px;
    margin: 0px;
}
.breath-combined {
    animation: breathCombined 3s ease-in-out infinite;
}

@keyframes breathCombined {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.07);
        opacity: 0.9;
    }
}
.main{
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    position: relative;
    padding-top: 11vw;
    position: relative;
    overflow-x: hidden;
    overflow-y: auto;
    -webkit-overflow-scrolling : touch; 
}
.main .b1{
    position: absolute;
    top: 0px;
    width: 100%;
    height: auto;
    z-index: 1;
}

.header-box{
    display: flex;
    align-items: center;
    width: 100%;
    box-sizing: border-box;
    padding-left: 7vw;
    padding-right: 7vw;
    margin-bottom: 14vw;
    position: relative;
    z-index: 2;
}
.header-box .left{
    flex-shrink: 0;
}
.header-box .center{
    flex: 1;
    text-align: center;
}
.header-box .right{
    flex-shrink: 0;
}
.header-box .center img{
    height: 9vw;
    width: auto;
}
.header-box .left img{
    height: 6.500vw;
    width: auto;
}
.header-box .right img{
    height: 6.500vw;
    width: auto;
}
.c{
    width: calc(100% - 16vw);
    margin-left: auto;
    margin-right: auto;
    display: block;
    height: auto;
    position: relative;
    z-index: 3;
}
.button-box{
    display: block;
    box-sizing: border-box;
    padding-left: 10vw;
    padding-right: 10vw;
    color: #ffffff;
    padding-top: 9vw;
    /**/background-image: url(../images/b12.png);
    background-size: 100% auto;
    background-position: center bottom; 
    background-repeat: no-repeat;
    padding-bottom: 14vw;
}
.button-box .max-btn{
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 11vw;
    background-color: #5A95D8;
    border-radius: 2vw;
    margin-bottom: 3vw;
}
.button-box .max-btn:active{
    opacity: 0.65;
}
.button-box .minbtn-box{
    display: flex;
    width: 100%;
    box-sizing: border-box;
    margin-bottom: 3vw;
}

.button-box .minbtn-li{
    flex: 1;
    height: 11vw;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: #5A95D8;
    border-radius: 2vw;
}
.button-box .minbtn-li:active{
    opacity: 0.65;
}
.button-box .minbtn-li:nth-child(1){
    margin-right: 2vw;
}
.button-box .minbtn-li:nth-child(2){
    margin-left: 2vw;
}
.margin-b{
    margin-bottom: 0px!important;
}