* {
  box-sizing: border-box;
}

img {
  vertical-align: middle;
}

body {
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-width: 1300px;
  background: url(../img/pc/bg.png?v=15) no-repeat;
  background-size: 100% 100%;
}

header {
  width: 100vw;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 3vh 2vw 0;
}

header > img:first-of-type {
  height: 10vh;
  margin-right: auto;
}

header > img:nth-of-type(n + 2) {
  width: 8%;
  display: flex;
  margin-left: 24px;
  cursor: pointer;
}

header > img:nth-of-type(3) {
  width: 8%;
}

main {
  height: 72%;
  display: flex;
  flex-direction: row;
  justify-content: center;
  overflow: hidden;
}

.left {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  margin-right: 6vw;
  margin-top: 5vh;
}

.seg-img {
  width: 85%;
  object-fit: cover;
}

.qr-box {
  width: 70%;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  margin-top: 50px;
}

.qrcode > img {
  width: 180px;
  height: 180px;
}

.down-btns {
  display: flex;
  flex-wrap: wrap;
  margin-left: 20px;
}

.down-btns > img:nth-of-type(2) {
  margin-left: 15px;
}

.down-btns > img:nth-of-type(3) {
    margin-top: 15px;
  }

.down-img {
  width: 172px;
  height: 54px;
  cursor: pointer;
}

main .right > img {
  width: 100%;
  object-fit: cover;
}

footer {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

footer > img {
  width: 70%;
}