Add AI Creator Economy homepage feature

app/page.tsx

@@ -28,6 +28,33 @@ export default function Home() {
       <div className="shell proof"><div><i>✦</i>一套完整的创作者增长系统</div><div><strong>1:1</strong><span>专属合作方案</span></div><div><strong>4</strong><span>核心增长模块</span></div><div><strong>∞</strong><span>可扩展场景</span></div></div>
     </section>
 
+    <section className="economy-section">
+      <div className="shell economy-grid">
+        <div className="economy-copy">
+          <p className="eyebrow">COZSWEET CREATOR REVENUE ENGINE</p>
+          <h2>THE AI CREATOR<br/>ECONOMY HAS<br/><span>ARRIVED.</span></h2>
+          <p>Cozsweet 不只帮你生产更多内容，更把内容带来的流量转化为可持续经营的粉丝关系，并通过订阅、付费聊天、付费内容、打赏与专属互动，帮助创作者持续增加账号收入。</p>
+          <div className="economy-actions"><Link className="btn economy-btn" href="/advantages">了解增收方式 <b>→</b></Link><small>从流量，到关系，再到收入</small></div>
+        </div>
+        <div className="revenue-visual" aria-label="Cozsweet 创作者多元收入增长系统示意">
+          <div className="revenue-glow"/>
+          <div className="revenue-phone">
+            <div className="phone-top"><i/><span>COZSWEET</span><b>•••</b></div>
+            <div className="phone-greeting"><span>CREATOR REVENUE</span><strong>多元收入持续增长</strong><small>内容价值正在被转化</small></div>
+            <div className="revenue-chart"><div/><div/><div/><div/><div/><div/></div>
+            <div className="revenue-list">
+              <div><i>01</i><span>订阅收入</span><b>↗</b></div>
+              <div><i>02</i><span>付费聊天</span><b>↗</b></div>
+              <div><i>03</i><span>付费内容</span><b>↗</b></div>
+              <div><i>04</i><span>粉丝打赏</span><b>↗</b></div>
+            </div>
+          </div>
+          <div className="revenue-float top"><small>关系运营</small><strong>评论 → 私信 → 私域</strong></div>
+          <div className="revenue-float bottom"><small>增长目标</small><strong>账号收入 ↑</strong></div>
+        </div>
+      </div>
+    </section>
+
     <section className="section shell">
       <div className="split"><div><p className="kicker">OUR MODEL</p><h2>不是替代创作者，<br/>而是放大创作者。</h2></div><div className="model-copy"><p>已有真人创作者，我们放大其形象、表达与粉丝信任；没有真人原型，也可以从零定义形象、人设与故事，打造完全原创的数字人 IP。</p><div className="model-paths"><span><i/>真人授权分身</span><span><i/>原创数字人 IP</span></div></div></div>
       <div className="service-grid">{services.map(([no,title,text])=><article key={no}><span>{no}</span><div/><h3>{title}</h3><p>{text}</p></article>)}</div>