/* 主题图标基础样式 */
.zay-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    color: var(--primary-color, #0d6efd);
  }
  
  /* 大小变体 */
  .zay-icon-sm { font-size: 0.875rem; }
  .zay-icon-md { font-size: 1.25rem; }
  .zay-icon-lg { font-size: 1.5rem; }
  .zay-icon-xl { font-size: 2rem; }
  
  /* 圆形按钮图标 */
  .zay-icon-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background-color: rgba(var(--bs-primary-rgb), 0.1);
    color: var(--bs-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
  }
  
  .zay-icon-btn:hover {
    background-color: rgba(var(--bs-primary-rgb), 0.2);
    transform: translateY(-2px);
  }
  
  /* 文件类型图标样式 */
  .file-icon {
    padding: 8px;
    border-radius: 8px;
    margin-right: 10px;
    background-color: rgba(var(--bs-secondary-rgb), 0.1);
  }
  
  /* 文件类型特定颜色 */
  .file-icon-video { color: #ff4757; background-color: rgba(255, 71, 87, 0.1); }
  .file-icon-audio { color: #2ed573; background-color: rgba(46, 213, 115, 0.1); }
  .file-icon-image { color: #1e90ff; background-color: rgba(30, 144, 255, 0.1); }
  .file-icon-document { color: #5352ed; background-color: rgba(83, 82, 237, 0.1); }
  .file-icon-archive { color: #ffa502; background-color: rgba(255, 165, 2, 0.1); }
  .file-icon-code { color: #a55eea; background-color: rgba(165, 94, 234, 0.1); }
  .file-icon-folder { color: #ff9f43; background-color: rgba(255, 159, 67, 0.1); }
  
  /* 悬停动画效果 */
  .zay-icon-animated:hover {
    animation: pulse 0.5s ease-in-out;
  }
  
  @keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
  }

  /* 操作按钮图标样式 */
.action-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    background-color: rgba(var(--bs-primary-rgb), 0.08);
    color: var(--bs-primary);
  }
  
  .action-icon:hover {
    background-color: var(--bs-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(var(--bs-primary-rgb), 0.3);
  }
  
  /* 操作类型特定样式 */
  .action-icon-edit { background-color: rgba(var(--bs-warning-rgb), 0.08); color: var(--bs-warning); }
  .action-icon-edit:hover { background-color: var(--bs-warning); color: white; }
  
  .action-icon-delete { background-color: rgba(var(--bs-danger-rgb), 0.08); color: var(--bs-danger); }
  .action-icon-delete:hover { background-color: var(--bs-danger); color: white; }
  
  .action-icon-download { background-color: rgba(var(--bs-success-rgb), 0.08); color: var(--bs-success); }
  .action-icon-download:hover { background-color: var(--bs-success); color: white; }

  #itemsContainer {
    contain: layout style paint;
}
.file-item {
    contain: layout style;
    will-change: transform;
    transform: translateZ(0);
}
img {
    backface-visibility: hidden;
}
.fade-transition {
  opacity: 0;
  transition: opacity 0.3s ease-in-out;
}

.fade-transition.show {
  opacity: 1;
}


.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.7);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10;
}

.spinner-container {
  background: white;
  padding: 15px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}


@keyframes skeleton-loading {
  0% {
    background-position: -200px 0;
  }
  100% {
    background-position: calc(200px + 100%) 0;
  }
}

.skeleton-item {
  pointer-events: none;
}

.skeleton-preview,
.skeleton-line,
.skeleton-circle,
.skeleton-actions {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200px 100%;
  animation: skeleton-loading 1.5s infinite;
}

.skeleton-preview {
  width: 100%;
  height: 150px;
  border-radius: 4px;
}

.skeleton-circle {
  width: 24px;
  height: 24px;
  border-radius: 50%;
}

.skeleton-actions {
  width: 120px;
  height: 32px;
  border-radius: 4px;
}