feat: 优化会展策划网站UI和添加Duoduo Agent设计流程展示

主要更新:
- 统一所有页面导航栏样式为glass-morphism风格
- 添加Duoduo Agent智能设计系统完整可视化流程
- 展示从CAD到展位概念的5个设计阶段
- 优化页面交互效果和用户体验

详细修改:
- web_frontend/web_result/pages/: 统一6个页面导航栏样式
- operation.html: 新增Duoduo Agent设计流程展示模块
- 添加5张设计阶段图片展示 (CAD/概念/白模/渲染/最终方案)
- 增强视觉效果和动画交互

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

web_frontend/exhibition-demo/src/components/ResultModal.tsx

@@ -142,7 +142,7 @@ const ResultModal: React.FC<ResultModalProps> = ({ isOpen, onClose, onViewDetail
                 {/* 操作按钮 */}
                 <div className="flex gap-3">
                   <a
-                    href="../../web_result/index.html"
+                    href="../web_result/index.html"
                     target="_blank"
                     rel="noopener noreferrer"
                     className="flex-1 px-6 py-3 bg-gradient-to-r from-blue-600 to-purple-600 text-white rounded-xl font-medium hover:shadow-lg transform hover:scale-105 transition-all flex items-center justify-center gap-2"