更新前端页面，调整表单布局和样式，优化响应式设计，添加移动端卡片视图，修改AWS报价单的显示方式。

frontend/src/App.vue

@@ -7,7 +7,7 @@
           <el-menu mode="horizontal" router :default-active="'/awsSearch'" class="menu" background-color="#3498db" text-color="#fff" active-text-color="#ffd04b">
             <!-- <el-menu-item index="/"><i class="el-icon-s-finance"></i> 价格计算器</el-menu-item> -->
             <el-menu-item index="/awsSearch"><i class="el-icon-search"></i>AWS报价</el-menu-item>
-            <el-menu-item index="/awsSearchDiscount"><i class="el-icon-search"></i>AWS折扣</el-menu-item>
+            <!-- <el-menu-item index="/awsSearchDiscount"><i class="el-icon-search"></i>AWS折扣</el-menu-item> -->
             <!-- <el-menu-item index="/compare"><i class="el-icon-data-analysis"></i> 价格对比</el-menu-item> -->
           </el-menu>
         </div>