/* 工具按钮组样式 */
    .header-tools {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .tool-btn {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      border: 1px solid var(--border-color);
      background: var(--bg-elevated);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: all 0.2s ease;
      color: var(--text-secondary);
    }

    .tool-btn:hover {
      border-color: var(--accent-primary);
      color: var(--accent-primary);
      transform: scale(1.05);
    }

    .tool-btn svg {
      width: 18px;
      height: 18px;
    }

    /* 语言切换按钮样式 */
    .lang-toggle-btn {
      font-size: 12px;
      font-weight: 600;
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
      background: var(--bg-primary);
      color: var(--text-primary);
      min-height: 100vh;
      min-height: 100dvh; /* Safari 移动端：动态视口高度 */
      overflow-x: hidden;
    }

    /* 自定义滚动条 */
    ::-webkit-scrollbar {
      width: 6px;
      height: 6px;
    }
    ::-webkit-scrollbar-track {
      background: var(--bg-secondary);
    }
    ::-webkit-scrollbar-thumb {
      background: var(--border-color);
      border-radius: 3px;
    }
    ::-webkit-scrollbar-thumb:hover {
      background: var(--border-hover);
    }

    /* 防止 Vue 加载前显示模板内容 */
    [v-cloak] {
      display: none !important;
    }

    /* 加载遮罩 */
    .loading-screen {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: var(--bg-primary);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      z-index: 9999;
      transition: opacity 0.3s ease, visibility 0.3s ease;
    }

    .loading-screen.hidden {
      opacity: 0;
      visibility: hidden;
      pointer-events: none;
    }

    .loading-screen .logo-icon {
      width: 64px;
      height: 64px;
      margin-bottom: 20px;
      animation: pulse 2s ease-in-out infinite;
    }

    @keyframes pulse {
      0%, 100% { transform: scale(1); opacity: 1; }
      50% { transform: scale(1.1); opacity: 0.8; }
    }

    .loading-screen .loading-text {
      font-size: 18px;
      color: var(--text-secondary);
      margin-bottom: 24px;
    }

    .loading-screen .progress-container {
      width: 280px;
      margin-bottom: 16px;
    }

    .loading-screen .progress-bar {
      width: 100%;
      height: 6px;
      background: var(--border-color);
      border-radius: 3px;
      overflow: hidden;
    }

    .loading-screen .progress-fill {
      height: 100%;
      background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
      border-radius: 3px;
      width: 0%;
      transition: width 0.3s ease;
    }

    .loading-screen .progress-info {
      display: flex;
      justify-content: space-between;
      margin-top: 8px;
      font-size: 12px;
      color: var(--text-muted);
    }

    .loading-screen .progress-percent {
      color: var(--accent-primary);
      font-weight: 500;
    }

    .loading-screen .loading-status {
      font-size: 13px;
      color: var(--text-muted);
      margin-top: 12px;
      min-height: 20px;
    }

    #app {
      min-height: 100vh;
      min-height: 100dvh;
      display: flex;
      flex-direction: column;
    }