/* 深色风格加载指示器 CSS */
.loading {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #f5f5f7;
  font-size: 18px;
  z-index: 1000;
  background: rgba(44, 44, 46, 0.95);
  padding: 20px 30px;
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  border: 1px solid #3a3a3c;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  min-width: 200px;
}

/* 旋转动画 */
.spinner {
  width: 40px;
  height: 40px;
  margin-bottom: 15px;
  border: 3px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  border-top: 3px solid #0A84FF;
  animation: spin 1s linear infinite;
}

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