{notempty name="$arrVideo['v_seo_words']"}
{php}
    $intRewrite = (int)($pageCfg['seowords']['rewrite'] ?? 0);
    // ⭐ 执行 variant 策略
    $arrSeoWords = \app\common\helper\SeoWordsHelper::build(
        $arrVideo['v_seo_words'],
        $intRewrite
    );

{/php}

{switch $pageCfg.seowords.layout}
    {case value="A"}{include file="module/seowords/layout/layout_A" /}{/case}
    {case value="B"}{include file="module/seowords/layout/layout_B" /}{/case}
    {case value="C"}{include file="module/seowords/layout/layout_C" /}{/case}
    {case value="D"}{include file="module/seowords/layout/layout_D" /}{/case}
{/switch}

{/notempty}