* {
    box-sizing: border-box;
}

img {
    vertical-align: middle;
}

body {
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    background: url(../img/pc/bg.jpg?s=11) no-repeat;
    background-size: cover;
    background-position: top;
}

header {
    height: 15vh;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 0 5vw;
    padding-top: 5vh;
}

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

header>img:nth-of-type(2) {
    margin-left: auto;
    height: 80%;
    margin-right: 20px;
}

header>img:nth-of-type(3) {
    height: 80%;
}

main {
    height: 90vh;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    position: relative;
}

.t {
    width: 50%;
}

.qrbox {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 5vh;
}

#qrcode {
    background: #fff;
    padding: 10px;
    border-radius: 10px;
    height: 15vh;
    width: 15vh;
    box-sizing: border-box;
}

#qrcode>img {
    width: 100%;
    height: 100%;
}

.tip {
    position: absolute;
    right: 5vw;
    bottom: 5vh;
}

.t1 {
    color: #fff;
    font-weight: 500;
    text-align: center;
    font-size: 2.5rem;
    line-height: 1;
    margin-top: 2vh;
}

.t2 {
    color: #fff;
    text-align: center;
    font-size: 1.5rem;
    line-height: 1;
    margin-top: 20px;
}