diff --git a/index.html b/index.html
index 8d1b60a..2dcf41d 100644
--- a/index.html
+++ b/index.html
@@ -4,7 +4,24 @@
     <meta charset="UTF-8" />
     <link rel="icon" type="image/svg+xml" href="/vite.svg" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>ThinkFlow AI</title>
+    <title>ThinkFlow AI - Visual Idea Expansion Tool | 视觉化思路扩展工具</title>
+    <meta name="description" content="ThinkFlow AI - 基于大语言模型的视觉化思路扩展与灵感激发工具。通过图形化界面深度挖掘创意，支持多维扩展、图片生成与结构化总结。A visual idea expansion and inspiration tool powered by LLM." />
+    <meta name="keywords" content="ThinkFlow AI, 思路扩展, 灵感激发, 视觉化思维, AI工具, 脑图, 创意辅助, Idea Expansion, Inspiration Tool, Visual Thinking, AI Tools, Mind Map, Creative Assistant" />
+    <meta name="author" content="Liuziting" />
+
+    <!-- Open Graph / Facebook -->
+    <meta property="og:type" content="website" />
+    <meta property="og:url" content="https://github.com/liu-ziting/ThinkFlowAI" />
+    <meta property="og:title" content="ThinkFlow AI - Visual Idea Expansion Tool" />
+    <meta property="og:description" content="A visual idea expansion and inspiration tool powered by LLM. 基于大模型的视觉化思路扩展与灵感激发工具。" />
+    <meta property="og:image" content="/vite.svg" />
+
+    <!-- Twitter -->
+    <meta property="twitter:card" content="summary_large_image" />
+    <meta property="twitter:url" content="https://github.com/liu-ziting/ThinkFlowAI" />
+    <meta property="twitter:title" content="ThinkFlow AI - Visual Idea Expansion Tool" />
+    <meta property="twitter:description" content="A visual idea expansion and inspiration tool powered by LLM. 基于大模型的视觉化思路扩展与灵感激发工具。" />
+    <meta property="twitter:image" content="/vite.svg" />
   </head>
   <body>
     <div id="app"></div>
diff --git a/src/i18n/locales/zh.json b/src/i18n/locales/zh.json
index 5d55968..b90a7f2 100644
--- a/src/i18n/locales/zh.json
+++ b/src/i18n/locales/zh.json
@@ -31,7 +31,7 @@
     "title": "ThinkFlow AI",
     "subtitle": "思维导图 & AI 助手",
     "placeholder": "在这里输入您的想法...",
-    "execute": "提交问题",
+    "execute": "提交想法",
     "reset": "重置",
     "fit": "适配",
     "layout": "布局",
