'优化课程'

app/components/course/CTASection.tsx

@@ -0,0 +1,46 @@
+"use client";
+
+import { useState, useEffect } from "react";
+import { Link } from "@/i18n/navigation";
+import { CTA_CONFIG } from "@/config/course";
+import { isPaid } from "@/app/lib/course-payment";
+
+export function CTASection() {
+  const [paid, setPaid] = useState(false);
+  useEffect(() => {
+    setPaid(isPaid());
+    const onPayUpdate = () => setPaid(isPaid());
+    window.addEventListener("pay:updated", onPayUpdate);
+    return () => window.removeEventListener("pay:updated", onPayUpdate);
+  }, []);
+
+  return (
+    <section className="border-t border-[var(--border)] py-16 sm:py-20 md:py-24">
+      <div className="mx-auto max-w-3xl px-4 text-center sm:px-6">
+        <h2 className="mb-4 text-xl font-bold sm:text-2xl md:text-3xl">
+          {CTA_CONFIG.title}
+        </h2>
+        <p className="mb-6 text-[var(--muted-foreground)] sm:mb-8">
+          {CTA_CONFIG.subtitle}
+        </p>
+        <div className="mb-8 flex flex-wrap justify-center gap-4 text-sm text-[var(--muted-foreground)] sm:mb-10 sm:gap-6">
+          {CTA_CONFIG.badges.map((b, i) => (
+            <span
+              key={b}
+              className="animate-float-badge rounded-full border border-[var(--border)] bg-[var(--card)] px-4 py-2"
+              style={{ animationDelay: `${i * 0.2}s` }}
+            >
+              {b}
+            </span>
+          ))}
+        </div>
+        <Link
+          href={paid ? "/course/0/0" : "/join"}
+          className="inline-flex items-center gap-2 rounded-full bg-[var(--accent)] px-8 py-4 text-lg font-semibold text-[var(--accent-foreground)] shadow-lg shadow-[var(--accent)]/25 transition-all duration-300 hover:scale-105 hover:opacity-95 hover:shadow-xl hover:shadow-[var(--accent)]/30 sm:px-10"
+        >
+          {paid ? "开始学习 →" : "立即加入 →"}
+        </Link>
+      </div>
+    </section>
+  );
+}