/* 工具栏样式 */
  .toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
  }


  .toolbar-right {
    display: flex;
    align-items: center;
    gap: 15px;
  }

  .word-count {
    font-size: 12px;
    margin-left: 10px;
  }

  .btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 5px 10px;
    transition: all 0.2s ease;
  }

  .btn:hover {
    background-color: var(--button-hover);
  }
  
  /* 绘图工具容器样式 */
  .drawing-tools-container {
    display: flex;
    align-items: center;
    margin-left: 20px;
    gap: 12px;
    flex: 1;
    flex-wrap: wrap;
  }
  
  /* 底部工具栏（移动端绘图工具） */
  .mobile-drawing-tools {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--bg-color);
    border-top: 1px solid var(--border-color);
    padding: 12px 10px;
    z-index: 9;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    justify-content: space-around;
  }
  
  /* 移动端笔刷大小选项 */
  .mobile-stroke-size-option {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
  }
  
  .mobile-stroke-size-option:hover {
    background-color: var(--button-hover);
  }
  
  .mobile-stroke-size-option.selected {
    background-color: var(--primary-color);
    color: var(--bg-color);
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.2);
    transform: scale(1.05);
  }
  
  /* 移动端适配样式 */
  @media (max-width: 768px) {
    .tool-group {
      gap: 4px;
    }
    
    .stroke-size-option {
      width: 24px;
      height: 24px;
    }
  }
  
  @media (max-width: 480px) {
    /* 在移动端隐藏顶部绘图工具 */
    .header-drawing-tools {
      display: none;
    }
    
    /* 显示底部绘图工具 */
    .mobile-drawing-tools {
      display: flex;
      justify-content: space-between;
    }
    
    .toolbar {
      padding: 8px;
    }
    
    .drawing-container {
      height: calc(100vh - 130px) !important;
    }
  }
  
  .tool-group {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 8px;
    border-right: 1px solid var(--border-color);
  }
  
  .tool-group:last-child {
    border-right: none;
  }
  
  /* 笔刷大小选择器 */
  .stroke-selector-container {
    padding: 0 8px;
  }
  
  .stroke-size-container {
    display: flex;
    align-items: center;
    gap: 8px;

  }
  
  .stroke-size-option {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
  }
  
  .stroke-size-option:hover {
    background-color: var(--button-hover);
  }
  .stroke-size-option.selected {
    background-color: var(--primary-color);
    color: var(--bg-color);
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.2);
    transform: scale(1.05);
  }

  
  .color-preview {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: #000000;
    border: 1px solid var(--border-color);
  }
  
  /* 颜色选择器弹出窗口 */
  .color-palette {
    position: absolute;
    top: 50px;
    left: 0;
    width: 300px;
    max-height: 80vh;
    overflow-y: auto;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    z-index: 100;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  }
  
  @media (max-width: 480px) {
    .color-palette {
      width: 280px;
      left: 50%;
      transform: translateX(-50%);
    }
  }
  .donation-banner{
    color: var(--bg-color);
    background-color: var(--text-color);
  }