:root {
  --font-family-base: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", sans-serif;
  --color-primary: #409eff;
  --color-bg-light: #eef3f8;
  --color-bg-dark: #0d0d0d;
  --color-surface-light: rgba(255, 255, 255, 0.92);
  --color-surface-dark: #1a1a1a;
  --color-border-light: #d6e4ef;
  --color-border-dark: #2a2a2a;
  --color-text-primary: #303133;
  --color-text-secondary: #606266;
  --color-text-dark: #e5eaf3;
  --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.08);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
}
