*,
*::before,
*::after {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

body {
  width: 100%;
  max-width: 750px;
  margin: 0 auto;
}

img {
  display: block;
  max-width: 100%;
}

#cs {
  position: fixed;
  top: 50%;
  right: 10px;
  transform: translateY(-50%);
  z-index: 10;
  width: 80px;
}

#qrcode {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10;
  padding: 20px;
  background-color: white;
  border-radius: 8px;
}

@media (min-width: 751px) {
  #qrcode {
    display: block;
  }
}

html:has([data-device="pc"]) #qrcode {
  display: block !important;
}