body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", sans-serif; }
    .mask { position: fixed; top: 0; left: 0; bottom: 0; background: #333; width: 100%; z-index: 999; display: none; }
    .mask img { max-width: 100%; height: auto; }
    #app { box-sizing: border-box; min-height: 100vh; padding-bottom: 100px; display: flex; flex-direction: column; justify-content: center; align-items: center; }
    .main { display: flex; flex-direction: column; justify-content: center; align-items: center; width: 100%; }
    .tips { font-size: 18px; color: #666; }
    .tips-ip { margin: 40px 0 0 0; font-size: 26px; color: #999; }
    .tips-ts { margin-top: 0; font-size: 15px; color: #999; text-align: center; }
    .btn { font-size: 20px; height: 50px; min-width: 180px; background-color: #53c957; border-color: #53c957; border-radius: 4px; color: #fff; box-shadow: none; border: none; cursor: pointer; }
    .site-title { padding: 12px 0; text-align: center; font-weight: 700; color: #666; font-size: 18px; }
    .updata_hx { margin: 0 auto 12px auto; font-size: 12px; color: #ccc; text-align: center; }
    .xlcontainer { display: flex; flex-wrap: wrap; justify-content: center; max-width: 1100px; width: 100%; }
    .xlbtn {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 8px 10px;
      margin: 8px 12px;
      min-width: 140px;
      flex-shrink: 0;
      border: 1px solid #53c957;
      border-radius: 4px;
      border-top-right-radius: 20px;
      border-bottom-right-radius: 20px;
      font-size: 12px;
      font-weight: 700;
      color: #333;
      cursor: pointer;
      background: #fff;
      transition: all 0.15s;
    }
    .xlbtn:hover { box-shadow: 0 2px 8px rgba(0,0,0,0.1); }
    .xbtn-copy {
      display: flex;
      align-items: center;
      justify-content: center;
      margin-left: 10px;
      margin-right: -8px;
      margin-top: -4px;
      margin-bottom: -4px;
      width: 26px;
      height: 26px;
      background: #eee;
      border-radius: 50%;
      cursor: pointer;
      transition: background .1s;
    }
    .xbtn-copy:hover { background: #666; }
    .xbtn-copy-img { width: 16px; height: 16px; }
    .tipsicon { width: 8px; height: 8px; background: #53c957; border-radius: 50%; }
    .tipstext { margin: 0 6px; flex-grow: 1; text-align: right; font-size: 12px; font-weight: 700; color: #666; }
    
    /* 信任教程弹窗 */
    .modal-mask {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0,0,0,0.5);
      z-index: 1000;
      align-items: center;
      justify-content: center;
    }
    .modal-content {
      background: #fff;
      width: 90%;
      max-width: 450px;
      border-radius: 12px;
      padding: 20px;
      box-shadow: 0 4px 20px rgba(0,0,0,0.2);
    }