style: redesign hero section and auth split layout

app/(auth)/layout.tsx

@@ -1,8 +1,27 @@
+import { Gamepad2 } from "lucide-react"
+
 export default function AuthLayout({ children }: { children: React.ReactNode }) {
   return (
-    <div className="flex min-h-screen items-center justify-center bg-muted/30">
-      <div className="w-full max-w-md rounded-lg border bg-background p-6 shadow-sm">
-        {children}
+    <div className="flex min-h-screen">
+      <div className="hidden md:flex w-1/2 relative overflow-hidden bg-primary items-center justify-center p-12 text-primary-foreground">
+        <div className="absolute inset-0 bg-linear-to-br from-primary via-primary/90 to-primary/80" />
+        <div className="absolute top-[-10%] left-[-10%] w-[60%] h-[60%] rounded-full bg-white/10 blur-[120px]" />
+        <div className="absolute bottom-[-10%] right-[-10%] w-[60%] h-[60%] rounded-full bg-white/10 blur-[120px]" />
+        <div className="relative z-10 max-w-md space-y-6">
+          <div className="flex items-center gap-3">
+            <div className="rounded-2xl bg-white/20 p-3 backdrop-blur-sm">
+              <Gamepad2 className="h-10 w-10" />
+            </div>
+            <span className="text-3xl font-bold tracking-tighter">聚玩 JuWan</span>
+          </div>
+          <div className="space-y-2">
+            <h2 className="text-4xl font-bold leading-tight">找到你的游戏搭档</h2>
+            <p className="text-lg text-primary-foreground/80">找人一起打游戏，从这里开始</p>
+          </div>
+        </div>
+      </div>
+      <div className="flex-1 flex items-center justify-center p-6 bg-muted/30 md:bg-background">
+        <div className="w-full max-w-md">{children}</div>
       </div>
     </div>
   )