web: 幸福三支柱改为平台角色并锚点到#roles，五维幸福维度改为幸福维度

web/index.html

@@ -142,9 +142,9 @@
               在爱与价值观中培养下一代的健全人格与核心竞争力。"</p>
           </div>
           <div class="product-stats">
-            <a href="#product" class="stat stat-link">
+            <a href="#roles" class="stat stat-link">
               <span class="stat-num">3</span>
-              <span class="stat-label">幸福三支柱</span>
+              <span class="stat-label">平台角色</span>
             </a>
             <a href="#products" class="stat stat-link">
               <span class="stat-num">4</span>
@@ -152,7 +152,7 @@
             </a>
             <a href="#dimensions" class="stat stat-link">
               <span class="stat-num">5</span>
-              <span class="stat-label">五维幸福维度</span>
+              <span class="stat-label">幸福维度</span>
             </a>
             <a href="#ai-tech" class="stat stat-link">
               <span class="stat-num">6</span>