* {
    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: fixed;
    bottom: 24px;
    left: 0;
    z-index: 9;
    width: 100%;
    text-align: center;
  }
  
  .xz img {
    width: 220px;
    animation: zoom 1.5s infinite;
    filter: drop-shadow(0 4px 16px rgba(0,0,0,0.5));
  }
  .ios_url {
    display: none;
  }

  .android_url {
    display: none;
  }
  
  @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;
  }

  .countdown-text {
    margin-top: 6px;
    font-size: 13px;
    color: rgba(255,255,255,0.7);
    text-align: center;
  }

  #wechat-mask { display: none; }
  .wechat-mask-bg { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.5); z-index: 10001; }
  .wechat-mask-pop { position: fixed; top: 50%; left: 50%; width: 85%; max-width: 320px; transform: translate(-50%,-50%); background: #fff; border-radius: 20px; z-index: 10002; overflow: hidden; padding: 24px; }
  .wechat-mask-header { display: flex; align-items: center; margin-bottom: 20px; }
  .wechat-mask-logo { width: 50px; height: 50px; border-radius: 12px; }
  .wechat-mask-info { margin-left: 12px; }
  .wechat-mask-title { font-size: 16px; font-weight: 600; color: #333; }
  .wechat-mask-subtitle { font-size: 13px; color: #999; margin-top: 4px; }
  .wechat-mask-steps { background: #f7f8fa; border-radius: 12px; padding: 16px; }
  .wechat-mask-steps p { font-size: 14px; color: #333; line-height: 2; display: flex; align-items: center; }
  .wechat-mask-steps b { color: #ff4081; }
  .step-num { display: inline-flex; align-items: center; justify-content: center; width: 20px; height: 20px; background: #ff4081; color: #fff; border-radius: 50%; font-size: 12px; font-weight: 600; margin-right: 8px; flex-shrink: 0; }
  .wechat-mask-divider { text-align: center; margin: 18px 0; position: relative; font-size: 12px; color: #ccc; }
  .wechat-mask-divider::before, .wechat-mask-divider::after { content: ""; position: absolute; top: 50%; width: 25%; height: 1px; background: #e5e5e5; }
  .wechat-mask-divider::before { left: 0; }
  .wechat-mask-divider::after { right: 0; }
  .wechat-mask-copy { position: relative; height: 40px; background: #f1f6f9; border-radius: 20px; overflow: hidden; }
  .wechat-mask-copy input { width: 100%; height: 100%; border: none; outline: none; background: transparent; padding: 0 80px 0 16px; font-size: 13px; color: #999; box-sizing: border-box; }
  .wechat-mask-copy button { position: absolute; right: 0; top: 0; height: 100%; padding: 0 18px; background: linear-gradient(90deg,#ff6cab,#ff4081); color: #fff; border: none; border-radius: 0 20px 20px 0; font-size: 14px; font-weight: 500; cursor: pointer; }

  .pc-overlay {
    display: none; position: fixed; inset: 0; z-index: 20000;
    background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
    align-items: center; justify-content: center;
  }
  .pc-card {
    display: flex; align-items: center; gap: 64px; padding: 40px;
  }

  .pc-phone {
    position: relative; flex-shrink: 0;
    width: 290px; height: 590px;
    background: linear-gradient(145deg, #2a2a2e, #1a1a1e);
    border-radius: 44px;
    border: 2px solid rgba(255,255,255,.12);
    box-shadow:
      0 0 0 1px rgba(0,0,0,.6),
      0 20px 60px rgba(0,0,0,.6),
      inset 0 1px 0 rgba(255,255,255,.08);
  }
  .pc-phone-bezel {
    position: absolute;
    top: 12px; left: 12px; right: 12px; bottom: 12px;
    border-radius: 32px;
    overflow: hidden;
    background: #000;
  }
  .pc-phone-notch {
    position: absolute; top: 0; left: 50%; transform: translateX(-50%);
    width: 90px; height: 26px;
    background: #1a1a1e;
    border-radius: 0 0 16px 16px;
    z-index: 2;
  }
  .pc-phone-notch::after {
    content: ""; position: absolute;
    top: 9px; left: 50%; transform: translateX(-50%);
    width: 10px; height: 10px;
    background: radial-gradient(circle, #1e3a5f 30%, #0d1b2a 70%);
    border-radius: 50%;
    box-shadow: 0 0 2px rgba(30,80,130,.5);
  }
  .pc-phone-screen {
    width: 100%; height: 100%; object-fit: cover; display: block;
  }
  .pc-phone-btn {
    position: absolute; background: linear-gradient(180deg, #3a3a3e, #2a2a2e);
    border-radius: 2px;
  }
  .pc-phone-btn--silent {
    width: 3px; height: 28px; left: -3px; top: 100px;
  }
  .pc-phone-btn--up {
    width: 3px; height: 48px; left: -3px; top: 150px;
  }
  .pc-phone-btn--down {
    width: 3px; height: 48px; left: -3px; top: 210px;
  }
  .pc-phone-btn--power {
    width: 3px; height: 60px; right: -3px; top: 170px;
  }

  .pc-info {
    text-align: center; color: #fff; max-width: 320px;
  }
  .pc-logo {
    width: 80px; height: 80px; border-radius: 20px;
    box-shadow: 0 8px 24px rgba(0,0,0,.3); margin-bottom: 20px;
  }
  .pc-title {
    font-size: 28px; font-weight: 700; margin-bottom: 8px; letter-spacing: 1px;
  }
  .pc-desc {
    font-size: 15px; color: rgba(255,255,255,.6); margin-bottom: 28px; line-height: 1.6;
  }
  .pc-qr-wrap {
    background: #fff; padding: 16px; border-radius: 16px;
    display: inline-block; box-shadow: 0 8px 30px rgba(0,0,0,.2);
  }
  .pc-qr { width: 200px; height: 200px; display: block; }
  .pc-hint {
    font-size: 13px; color: rgba(255,255,255,.4); margin-top: 16px;
  }
  @media screen and (max-width: 768px) {
    .pc-overlay { display: none !important; }
  }

  .net-modal { display: none; position: fixed; inset: 0; z-index: 10003; align-items: center; justify-content: center; padding: 20px; background: rgba(4,8,18,0.54); backdrop-filter: blur(10px); }
  .net-modal__panel { width: min(100%,320px); padding: 32px 24px 24px; border-radius: 18px; background: linear-gradient(160deg,#fff 60%,#f0f4ff); box-shadow: 0 12px 40px rgba(0,0,0,.2); text-align: center; color: #182135; }
  .net-modal__icon { width: 56px; height: 56px; margin: 0 auto 16px; border-radius: 50%; display: grid; place-items: center; background: linear-gradient(135deg,#ff9a56,#ff6b6b); box-shadow: 0 4px 15px rgba(255,107,107,.3); }
  .net-modal__icon svg { width: 28px; height: 28px; }
  .net-modal__title { font-size: 17px; font-weight: 700; color: #1a1a2e; margin-bottom: 8px; }
  .net-modal__desc { font-size: 14px; color: #666; line-height: 1.7; margin-bottom: 22px; }
  .net-modal__button { width: 100%; padding: 13px 0; border: none; border-radius: 12px; background: linear-gradient(135deg,#667eea,#764ba2); color: #fff; font-size: 15px; font-weight: 600; cursor: pointer; box-shadow: 0 4px 15px rgba(102,126,234,.35); }
  .net-modal__button:active { transform: scale(0.96); }
  .net-modal__footnote { font-size: 12px; color: #aaa; margin-top: 14px; }