/* 微动效与高级感材质修饰 */
.card-shadow {
  box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.05);
}
.dark .card-shadow {
  box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.3);
}

/* 丝滑的平滑折叠过渡 */
.folder-content {
  transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.2s ease;
}

/* 隐藏滚动条 */
.no-scrollbar::-webkit-scrollbar {
  display: none;
}
.no-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}