#loading-spinner {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.8);
  display: flex;
  flex-direction: column; /* 垂直方向布局 */
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

.spinner {
  position: relative;
  border: 4px solid #f3f3f3;
  border-top: 4px solid #3498db;
  border-radius: 50%;
  width: 30px;
  height: 30px;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.additional-text {
  position: relative; /* 相对定位 */
  top: -20px; /* 调整与转圈圈的垂直距离 */
  text-align: center;
  font-size: 40px;
  font-weight: bold;
}

.loading-text {
  margin-top: 20px;
  text-align: center;
  font-size: 18px;
}