* {
    box-sizing: border-box;
}

img {
    vertical-align: middle;
}

body {
    width: 100%;
    height: 100vh;
    background: url(/img/pc/bg.jpg?v=1) no-repeat;
    background-size: 100% 100%;
    position: relative;
    margin: 0 auto;
}

header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    display: flex;
    align-items: center;
    padding: 3vh 5vw;
}

header>img:nth-of-type(1) {
    width: 12vw;
}

header>img:nth-of-type(2) {
    width: 10vw;
    margin-left: auto;
    margin-right: 1vw;
}

header>img:nth-of-type(3) {
    width: 10vw;
}

main {
    width: 100%;
    height: 100%;
}

.swiper,
.swiper-wrapper,
.swiper-slide {
    width: 100%;
    height: 100%;
}

.swiper-slide {
    text-align: center;
}

.swiper-slide>img {
    height: 100%;
    object-fit: contain;
    background: url(/img/pc/bg2.jpg) no-repeat;
    background-size: 100% 100%;
}

footer {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 5vw 3vh;
}

footer>img {
    width: 20vw;
}

footer>div {
    width: 12vw;
}

footer>div>img {
    width: 100%;
}

#qrcode {
    background: #fff;
    padding: 25px;
    margin-bottom: 10px;
    background: url(/img/pc/qr.png) no-repeat;
    background-size: 100% 100%;
}

#qrcode>img {
    width: 100%;
}