/* 3. 徹底隱藏灰色 SUBMIT 按鈕 */
.pbSubmit, 
button.pbSubmit, 
input.pbSubmit { 
    display: none !important; 
}
/* 2. 隱藏貨號 (SKU)、分類與標籤資訊 */
.product_meta {
    display: none !important;
}

/* 3. 隱藏數量選擇器 (如果也不需要) */
.quantity {
    display: none !important;
}
/* 隱藏產品頁面的 PayPal 智慧付款按鈕區塊 */
.single-product .ppcp-gateway-button-container,
.single-product #ppcp-smart-button-container,
.single-product .paypal-buttons {
    display: none !important;
}
<script>
document.addEventListener("DOMContentLoaded", function() {
    // 尋找包含特定英文的標籤並替換
    const targetText = "Subscribe to our Newsletter";
    const chineseText = "同意我們隱私權政策。";
    
    // 搜尋所有標籤
    const elements = document.querySelectorAll('label, span, div');
    elements.forEach(el => {
        if (el.innerText && el.innerText.includes(targetText)) {
            el.innerText = el.innerText.replace(targetText, chineseText);
        }
    });
});
</script>