diff --git a/docs/design-doc-v1.md b/docs/design-doc-v1.md
index 87f4a84..5036dc3 100644
--- a/docs/design-doc-v1.md
+++ b/docs/design-doc-v1.md
@@ -3,6 +3,8 @@
 ### 🔹 品牌主轴：
 
 > 「一家融合创意与技术的定制开发工作室，专注于网站、软件、游戏与交互体验的全栈实现。」
+> A creative technology studio offering **custom development services**, specializing in full-stack solutions for websites, software, games, and interactive experiences.
+
 
 ### 🔹 品牌关键词：
 
diff --git a/nuxt.config.ts b/nuxt.config.ts
index 2e1b48b..b262423 100644
--- a/nuxt.config.ts
+++ b/nuxt.config.ts
@@ -1,8 +1,24 @@
+const DEFAULT_SEO = {
+  title: "Tootaio Studio",
+  description:
+    "A creative technology studio offering custom development services, specializing in full-stack solutions for websites, software, games, and interactive experiences.",
+  keywords:
+    "Tootaio, Tootaio Studio, custom development, full-stack solutions, web development, software development, game development, interactive experiences",
+  url: "https://tootaio.com",
+  image: "https://tootaio.com/og-image-1.png",
+};
+
 // https://nuxt.com/docs/api/configuration/nuxt-config
 export default defineNuxtConfig({
   compatibilityDate: "2025-07-15",
   devtools: { enabled: true },
-  modules: ["@nuxt/content", "@nuxt/ui", "@nuxt/eslint", "@nuxtjs/i18n"],
+  modules: [
+    "@nuxt/content",
+    "@nuxt/ui",
+    "@nuxt/eslint",
+    "@nuxtjs/i18n",
+    "@nuxtjs/seo",
+  ],
   css: ["@/assets/css/main.css"],
   i18n: {
     defaultLocale: "en",
@@ -21,4 +37,19 @@ export default defineNuxtConfig({
       },
     ],
   },
+  seo: {
+    meta: {
+      title: DEFAULT_SEO.title,
+      description: DEFAULT_SEO.description,
+      keywords: DEFAULT_SEO.keywords,
+      ogTitle: DEFAULT_SEO.title,
+      ogDescription: DEFAULT_SEO.description,
+      ogImage: DEFAULT_SEO.image,
+      ogUrl: DEFAULT_SEO.url,
+      twitterCard: "summary_large_image",
+      twitterTitle: DEFAULT_SEO.title,
+      twitterDescription: DEFAULT_SEO.description,
+      twitterImage: DEFAULT_SEO.image,
+    },
+  },
 });
diff --git a/package.json b/package.json
index 4be804d..9a4e05f 100644
--- a/package.json
+++ b/package.json
@@ -14,6 +14,7 @@
     "@nuxt/eslint": "1.10.0",
     "@nuxt/ui": "4.1.0",
     "@nuxtjs/i18n": "10.2.0",
+    "@nuxtjs/seo": "3.2.2",
     "better-sqlite3": "^12.4.1",
     "eslint": "^9.39.0",
     "nuxt": "^4.2.0",
diff --git a/public/robots.txt b/public/_robots.txt
similarity index 100%
rename from public/robots.txt
rename to public/_robots.txt
diff --git a/public/og-image-1.png b/public/og-image-1.png
new file mode 100644
index 0000000..c6eea25
Binary files /dev/null and b/public/og-image-1.png differ