diff --git a/index.html b/index.html
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index 0000000..c1e3c35
--- /dev/null
+++ b/index.html
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+<!DOCTYPE html>
+<html lang="zh-CN">
+  <head>
+    <meta charset="utf-8">
+    <title>导航页</title>
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <style>
+      body { font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial; padding: 20px; }
+      h1 { margin-bottom: 8px; }
+      p.description { color: #586069; margin: 0 0 16px; }
+      ul.nav-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
+      ul.nav-list li { margin: 0; }
+      ul.nav-list a { text-decoration: none; color: #0366d6; padding: 10px 14px; display: block; border: 1px solid #e1e4e8; border-radius: 6px; }
+      ul.nav-list a:hover { background: #f6f8fa; }
+    </style>
+
+</head>
+    <body>
+    <h1>学习 demo</h1>
+    <p class="description">为 Atlas 项目启动做准备的学习记录</p>
+    <ul class="nav-list">
+      <li><a href="/grid-study">Grid Study</a></li>
+      <li><a href="/login-page">Login Page</a></li>
+    </ul>
+  </body>
+</html>
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