Add login gate, calculation history, and AI markdown download.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/page.tsx

@@ -1,39 +1,6 @@
-import Link from "next/link";
 import PageShell from "@/components/page-shell";
-import { BookOpen, BrainCircuit, Compass, Sparkles } from "lucide-react";
-import { ZenCard } from "@/components/ui/zen-card";
 import { TaijiIcon } from "@/components/svg/taiji";
-
-const MODULES = [
-  {
-    href: "/learn",
-    title: "易经学习",
-    description: "64 卦卡片择读，繁体精简与简体图文",
-    icon: BookOpen,
-    accent: "from-amber-500/10 to-transparent",
-  },
-  {
-    href: "/liuyao",
-    title: "六爻算卦",
-    description: "三钱法起卦，卦辞 AI 智能解读",
-    icon: Sparkles,
-    accent: "from-stone-500/10 to-transparent",
-  },
-  {
-    href: "/bazi",
-    title: "生辰八字",
-    description: "四柱排盘，十神大运，AI 命理解读",
-    icon: BrainCircuit,
-    accent: "from-zinc-500/10 to-transparent",
-  },
-  {
-    href: "/combined",
-    title: "综合测算",
-    description: "天时地利人和，六爻可选",
-    icon: Compass,
-    accent: "from-neutral-500/10 to-transparent",
-  },
-];
+import HomeModules from "@/components/home/home-modules";
 
 export default function Home() {
   return (
@@ -45,25 +12,7 @@ export default function Home() {
           融合周易智慧与人工智能
         </p>
       </div>
-      <div className="grid gap-4 sm:grid-cols-2">
-        {MODULES.map(({ href, title, description, icon: Icon, accent }) => (
-          <Link key={href} href={href} className="group block">
-            <ZenCard
-              className={`h-full bg-gradient-to-br ${accent} transition-all duration-300 group-hover:-translate-y-0.5 group-hover:shadow-md`}
-            >
-              <div className="mb-3 flex items-center gap-3">
-                <span className="flex h-10 w-10 items-center justify-center rounded-full border border-border/60 bg-background/80">
-                  <Icon size={20} className="text-primary/80" />
-                </span>
-                <span className="text-lg font-medium tracking-wide">{title}</span>
-              </div>
-              <p className="text-sm leading-relaxed text-muted-foreground">
-                {description}
-              </p>
-            </ZenCard>
-          </Link>
-        ))}
-      </div>
+      <HomeModules />
     </PageShell>
   );
 }