/* 自定义 overlay 滚动条样式 */
.custom-overlay-scrollbar {
  position: fixed;
  top: 50%;
  left: auto;
  right: 8px;
  transform: translateY(-50%);
  width: 6px;
  height: 256px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  z-index: 100;
  pointer-events: auto;
  opacity: 0;
  transition: opacity 0.3s ease;
  box-shadow: 0 0 8px rgba(255, 255, 255, 0.1), 0 2px 8px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}
.custom-overlay-scrollbar__thumb {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.4);
  border-radius: 3px;
  cursor: pointer;
  transition: background-color 0.2s ease, box-shadow 0.2s ease;
  min-height: 20px;
  box-shadow: 0 0 4px rgba(255, 255, 255, 0.2), 0 1px 3px rgba(0, 0, 0, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}
.custom-overlay-scrollbar__thumb:hover {
  background: rgba(255, 255, 255, 0.6);
  box-shadow: 0 0 6px rgba(255, 255, 255, 0.3), 0 2px 6px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}
.custom-overlay-scrollbar.visible {
  opacity: 1;
}