* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
  }
  
  body {
    background-color: #000;
    display: flex;
    justify-content: center;
  }
  
  .swiper {
    height: 100vh;
    width: 500px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: -1;
  }
  
  .swiper-slide {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .swiper-slide img {
    height: 100vh;
    width: 100%;
  }
  
  .overlay {
    position: relative;
    height: 100vh;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    text-align: center;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.3);
  }
  
  @keyframes zoom {
    0% {
      transform: scale(1);
    }
    50% {
      transform: scale(1.1);
    }
    100% {
      transform: scale(1);
    }
  }
  
  .xz {
    position: absolute;
    top: 92%;
    z-index: 9;
    width: 100%;
    text-align: center;
  }
  
  .xz img {
    width: 160px;
    animation: zoom 2s infinite;
  }
  .ios_url {
    padding-right: 15px;
  }

  .android_url {
    padding-right: 15px;
  }
  
  @media screen and (max-width: 768px) {
    .swiper {
      height: 100vh;
      width: 100%;
      top: 0;
      left: 0;
      transform: none;
    }
  
    main {
      width: 100%;
      height: 100vh;
    }
  
    #model {
      width: 100% !important;
      height: 100vh;
    }
  }
  
  a {
    z-index: 99999;
  }