/* 页面加载动画样式 */
.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.5s ease-out, visibility 0.5s ease-out;
}

.page-loader.fade-out {
  opacity: 0;
  visibility: hidden;
}

.loader {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: 5px solid #f3f3f3;
  border-top: 5px solid #3498db;
  animation: spin 1s linear infinite;
  position: relative;
}

.loader::after {
  content: "";
  position: absolute;
  top: -5px;
  left: -5px;
  right: -5px;
  bottom: -5px;
  border-radius: 50%;
  border: 5px solid transparent;
  border-top: 5px solid #e74c3c;
  animation: spin-reverse 1.5s linear infinite;
}

.loader-text {
  position: absolute;
  bottom: -30px;
  font-size: 16px;
  color: #333;
  font-weight: 500;
}

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

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

/* 页面内容淡入效果 */
.page-content {
  opacity: 0;
  transition: opacity 0.5s ease-in;
}

.page-content.fade-in {
  opacity: 1;
}