* {
    box-sizing: border-box;
}

img {
    vertical-align: middle;
}

body {
    width: 100vw;
    height: 100vh;
    background: url(../img/pc/bg.png?sby=106) no-repeat;
    background-size: 100% 100%;
    position: relative;
    display: flex;
    flex-direction: column;
}

header {
    display: flex;
    align-items: flex-start;
    height: 14vh;
    z-index: 10;
    padding: 4vh 5vw 0;
}

header>img:first-of-type {
    height: 100%;
}

header>img:nth-of-type(2) {
    margin-left: auto;
    margin-right: 2vw;
    height: 30%;
    cursor: pointer;
}

header>img:nth-of-type(3) {
    height: 30%;
    margin-right: 2vw;
    cursor: pointer;
}

header>img:nth-of-type(4) {
    height: 30%;
    cursor: pointer;
}

main {
    flex: 1;
    overflow: hidden;
    display: flex;
    justify-content: flex-end;
    align-items: flex-end;
    padding-right: 10vw;
    position: relative;
}

main>img:first-of-type {
    height: 100%;
}

main>img:nth-of-type(2) {
    width: 30%;
    margin-bottom: 10vh;
}

main>img:nth-of-type(3) {
    position: absolute;
    bottom: 10px;
    right: 15vw;
    width: 55%;
}

.wraper {
    position: relative;
    width: 12vw;
    margin-bottom: 10vh;
    margin-left: 5vw;
}

.wraper>img {
    width: 100%;
}

#qrcode {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    padding: 25px;
}

#qrcode>img {
    width: 100%;
}