:root {
      --sidebar-bg: #001529;
      --sidebar-active: #1890ff;
      --sidebar-text: rgba(255, 255, 255, 0.65);
      --sidebar-hover: rgba(255, 255, 255, 0.08);
      --page-bg: #f5f7fa;
      --border: #e8e8e8;
      --text: #262626;
      --text-secondary: #8c8c8c;
      --primary: #1890ff;
      --header-h: 64px;
      --sidebar-w: 240px;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue",
        "Microsoft YaHei", sans-serif;
      font-size: 14px;
      color: var(--text);
      background: var(--page-bg);
      min-height: 100vh;
    }

    .layout {
      display: flex;
      min-height: 100vh;
    }