html, body, #app { height: 100%; margin: 0; padding: 0; }
.app-loading {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: #16151c;
  color: #ffffff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  z-index: 9999;
}
.app-loading__logo {
  width: 72px;
  height: 72px;
  margin-bottom: 24px;
}
.app-loading__title {
  font-size: 22px;
  font-weight: 600;
  line-height: 32px;
  margin: 0 0 8px;
  letter-spacing: 1px;
}
.app-loading__subtitle {
  font-size: 14px;
  font-weight: 300;
  line-height: 22px;
  margin: 0 0 40px;
  color: rgba(255, 255, 255, 0.65);
}
.app-loading__spinner {
  width: 36px;
  height: 36px;
  border: 3px solid rgba(255, 255, 255, 0.15);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: app-loading-spin 0.9s linear infinite;
}
.app-loading__text {
  margin-top: 16px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}
@keyframes app-loading-spin {
  to { transform: rotate(360deg); }
}