html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  overflow-y: scroll;
}

.container {
  width: 100%;
  height: 100%;
  box-sizing: border-box;
  background: url('images/bg.png') no-repeat center center;
  background-size: cover;
  overflow-y: scroll;
}

.bread_bg {
  width: 100%;
  min-height: 100vh;
  min-height: 100svh;
  padding: 40px 10px;
  box-sizing: border-box;
}

.center {
  width: 100%;
  z-index: 1;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  overflow: hidden;
}

.logo {
  width: 50%;
  display: block;
  margin: 0 auto;
}

.img_center {
  display: block;
  margin: 0 auto;
}

.center .title {
  width: 92%;
  margin-bottom: 2%;
}

.center .demo {
  max-width: 70%;
  max-height: 100%;
  object-fit: contain;
  user-select: none;
  -webkit-user-select: none;
  -webkit-user-drag: none;
  pointer-events: auto;
  touch-action: none;
}

.bottom-btn-group {
  width: 100%;
  display: flex;
  justify-content: center;
  flex-direction: row;
  gap: 16%;
  margin: 3% 0;
  img {
    width: 18%;
  }
  .download-btn,
  .share-btn {
    cursor: pointer;
  }
}

.tips {
  width: 80%;
}

.mg-t {
  margin-top: 6%;
}

.is-hidden {
  display: none !important;
}

.download-loading {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.45);
}

.download-loading__spinner {
  width: 44px;
  height: 44px;
  border: 3px solid rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: download-spin 0.75s linear infinite;
}

@keyframes download-spin {
  to {
    transform: rotate(360deg);
  }
}

.save-success-dialog {
  position: fixed;
  inset: 0;
  z-index: 1001;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  box-sizing: border-box;
  background: rgba(0, 0, 0, 0.45);
}

.save-success-dialog__panel {
  width: 100%;
  max-width: 180px;
  padding: 14px 14px 12px;
  border-radius: 10px;
  background: #fff;
  text-align: center;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.18);
}

.save-success-dialog__title {
  margin: 0 0 12px;
  font-size: 15px;
  color: #111;
}

.save-success-dialog__ok {
  width: 100%;
  padding: 8px 12px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  color: #fff;
  background: #222;
  cursor: pointer;
}

.save-success-dialog__ok:active {
  opacity: 0.9;
}