首次提交：姜十三论坛

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frontend/app/layout.tsx

@@ -0,0 +1,36 @@
+import type { Metadata } from "next";
+import { cookies } from "next/headers";
+import "./globals.css";
+import Header from "@/components/Header";
+import Footer from "@/components/Footer";
+
+export const metadata: Metadata = {
+  title: "姜十三论坛",
+  description: "姜十三论坛 - 技术分享与讨论社区",
+  openGraph: {
+    title: "姜十三论坛",
+    description: "姜十三论坛 - 技术分享与讨论社区",
+    type: "website",
+  },
+};
+
+export default async function RootLayout({
+  children,
+}: {
+  children: React.ReactNode;
+}) {
+  const cookieStore = await cookies();
+  const theme = cookieStore.get("j13-theme")?.value || "light";
+
+  return (
+    <html lang="zh-CN" className={theme === "dark" ? "dark" : ""}>
+      <body className="min-h-screen flex flex-col">
+        <Header />
+        <main className="flex-1 max-w-5xl mx-auto w-full px-4 py-6">
+          {children}
+        </main>
+        <Footer />
+      </body>
+    </html>
+  );
+}