diff --git a/public/themes/dist_static/static/js/common.js b/public/themes/dist_static/static/js/common.js
index 454efe1..6532e25 100644
--- a/public/themes/dist_static/static/js/common.js
+++ b/public/themes/dist_static/static/js/common.js
@@ -40,6 +40,70 @@ $(function() {
 		lenis.raf(time * 1e3);
 	});
 	gsap.ticker.lagSmoothing(0);
+
+	const UI_I18N = {
+		zh: {
+			"video.play": "视频播放",
+			"filter.by_product": "按产品筛选",
+			"about.expand_more": "展开更多",
+			"about.collapse": "收起",
+			"brand.short": "睿能科技",
+			"stock.delay_note": "截止 {time}*报价有十五分钟或以上延迟。",
+			"contact.name_required": "请输入姓名",
+			"contact.phone_required": "请输入手机号",
+			"contact.company_required": "请输入公司名称",
+			"contact.email_required": "请输入邮箱",
+			"contact.submitting": "提交中...",
+			"contact.submit": "提交",
+			"contact.success": "提交成功，我们会尽快与您联系！",
+			"contact.fail": "提交失败，请稍后重试",
+			"contact.network_error": "网络错误，请稍后重试",
+			"earth.hq_fuzhou": "全球总部福州",
+			"earth.hq_fuzhou_html": "全球总部<br>福州"
+		},
+		en: {
+			"video.play": "Video",
+			"filter.by_product": "Filter by product",
+			"about.expand_more": "Show more",
+			"about.collapse": "Show less",
+			"brand.short": "RAYNEN",
+			"stock.delay_note": "As of {time}* Quotes delayed by 15 minutes or more.",
+			"contact.name_required": "Please enter your name",
+			"contact.phone_required": "Please enter your phone number",
+			"contact.company_required": "Please enter your company name",
+			"contact.email_required": "Please enter your email",
+			"contact.submitting": "Submitting...",
+			"contact.submit": "Submit",
+			"contact.success": "Submitted successfully. We will contact you soon.",
+			"contact.fail": "Submission failed. Please try again later.",
+			"contact.network_error": "Network error. Please try again later.",
+			"earth.hq_fuzhou": "Global HQ Fuzhou",
+			"earth.hq_fuzhou_html": "Global HQ<br>Fuzhou"
+		}
+	};
+
+	function getUiLang() {
+		const fromHeader = document.querySelector(".site-header__lang")?.getAttribute("data-lang-current");
+		if (fromHeader === "en" || fromHeader === "zh") return fromHeader;
+		const seg = location.pathname.replace(/^\//, "").split("/")[0] || "";
+		return seg === "en" ? "en" : "zh";
+	}
+
+	function t(key, vars) {
+		const lang = getUiLang();
+		const table = UI_I18N[lang] || UI_I18N.zh;
+		let str = table[key] ?? UI_I18N.zh[key] ?? key;
+		if (vars && typeof vars === "object") {
+			Object.keys(vars).forEach((k) => {
+				str = str.replace(new RegExp(`\\{${k}\\}`, "g"), String(vars[k]));
+			});
+		}
+		return str;
+	}
+
+	window.getUiLang = getUiLang;
+	window.t = t;
+
 	const $header = $(".site-header");
 	const $mask = $(".mask");
 	const $targets = $("[data-header-dark]");
@@ -280,7 +344,7 @@ $(function() {
 
 			const timeEl = document.querySelector('[data-stock="time"]');
 			if (timeEl && data.updateTime) {
-				timeEl.textContent = `截止 ${data.updateTime}*报价有十五分钟或以上延迟。`;
+				timeEl.textContent = t("stock.delay_note", { time: data.updateTime });
 			}
 
 			const chartEl = document.querySelector('#stock-chart, [data-stock="chart"]');