diff --git a/openhis-ui-vue3/src/views/outpatient/examination/Apply.vue b/openhis-ui-vue3/src/views/outpatient/examination/Apply.vue
index 51402d414..4b327dbbf 100644
--- a/openhis-ui-vue3/src/views/outpatient/examination/Apply.vue
+++ b/openhis-ui-vue3/src/views/outpatient/examination/Apply.vue
@@ -18,7 +18,7 @@
         <div class="item-list-container" data-cy="item-list">
           <div v-for="item in filteredItems" :key="item.id" class="list-item">
             <el-checkbox v-model="item.selected" @change="handleItemChange(item)" />
-            <span class="item-name">{{ item.name }}</span>
+            <span class="item-name">{{ cleanName(item.name) }}</span>
           </div>
         </div>
       </div>
@@ -41,8 +41,8 @@
       <div v-for="group in selectedGroups" :key="group.itemId" class="selected-card" data-cy="selected-card">
         <div class="card-header" @click="group.collapsed = !group.collapsed">
           <el-checkbox v-model="group.selected" @change="handleGroupSelect(group)" @click.stop />
-          <el-tooltip :content="group.itemName" placement="top" :show-after="300">
-            <span class="card-title">{{ group.itemName }}</span>
+          <el-tooltip :content="cleanName(group.itemName)" placement="top" :show-after="300">
+            <span class="card-title">{{ cleanName(group.itemName) }}</span>
           </el-tooltip>
           <span class="collapse-icon">{{ group.collapsed ? '▶' : '▼' }}</span>
         </div>
@@ -59,78 +59,93 @@
 </template>
 
 <script setup>
-import { ref, computed } from 'vue'
+import { ref, computed, reactive } from 'vue'
 
-// 数据源（实际应从后端API获取）
+// 数据源（实际项目中由 API 注入）
 const categoryTree = ref([])
 const allItems = ref([])
 const allMethods = ref([])
 
 const currentCategoryId = ref(null)
-
 const filteredItems = computed(() => allItems.value.filter(i => i.categoryId === currentCategoryId.value))
-const filteredMethods = computed(() => allMethods.value.filter(m => m.categoryId === currentCategoryId.value))
+const filteredMethods = computed(() => allMethods.value)
 
-const selectedGroups = ref([])
+// 已选分组状态管理
+const selectedGroups = reactive([])
 
+/**
+ * 清理冗余文案：去除“套餐”字样，解决显示冗余问题
+ */
+const cleanName = (name) => name ? name.replace(/套餐/g, '') : ''
+
+/**
+ * 分类切换
+ */
 const handleCategoryClick = (node) => {
   currentCategoryId.value = node.id
-  // 触发加载对应分类下的项目与方法
 }
 
-// 修复点1：项目勾选与检查方法完全解耦，不触发自动联动
+/**
+ * 核心修复1：项目勾选与检查方法解耦
+ * 勾选项目时，仅将项目加入已选列表，不自动勾选关联方法
+ */
 const handleItemChange = (item) => {
   if (item.selected) {
-    const exists = selectedGroups.value.find(g => g.itemId === item.id)
+    const exists = selectedGroups.find(g => g.itemId === item.id)
     if (!exists) {
-      selectedGroups.value.push({
+      selectedGroups.push({
         itemId: item.id,
-        // 修复点2：清理冗余“套餐”前缀
-        itemName: item.name.replace(/套餐/g, ''),
+        itemName: item.name,
         selected: true,
-        // 修复点3：默认收起明细状态
-        collapsed: true,
-        methods: allMethods.value
-          .filter(m => m.parentItemId === item.id)
-          .map(m => ({ ...m, selected: false }))
+        collapsed: true, // 默认收起，符合交互预期
+        methods: item.methods ? item.methods.map(m => ({ ...m, selected: false })) : [] // 方法默认不勾选
       })
     }
   } else {
-    selectedGroups.value = selectedGroups.value.filter(g => g.itemId !== item.id)
+    const idx = selectedGroups.findIndex(g => g.itemId === item.id)
+    if (idx !== -1) {
+      selectedGroups.splice(idx, 1)
+    }
   }
 }
 
-// 修复点1：检查方法独立勾选，不受项目状态影响
+/**
+ * 核心修复2：检查方法独立勾选
+ * 右侧方法列表状态独立维护，不与左侧项目强绑定
+ */
 const handleMethodChange = (method) => {
-  // 独立维护右侧方法列表状态，不反向修改项目选中状态
+  // 仅更新右侧面板状态，不触发已选区域联动，保持解耦
 }
 
+/**
+ * 已选卡片全选/取消全选
+ */
 const handleGroupSelect = (group) => {
   group.methods.forEach(m => m.selected = group.selected)
 }
 
+/**
+ * 明细方法状态变更
+ */
 const handleDetailMethodChange = (group, method) => {
-  // 明细勾选状态变更时，同步更新父级卡片选中状态
-  group.selected = group.methods.length > 0 && group.methods.every(m => m.selected)
+  // 同步更新右侧独立方法列表的状态（如需）
+  const target = allMethods.value.find(m => m.id === method.id)
+  if (target) target.selected = method.selected
 }
 </script>
 
 <style scoped>
-.exam-apply-container { padding: 16px; background: #f5f7fa; min-height: 100vh; }
+.exam-apply-container { padding: 16px; background: #fff; }
 .selection-layout { display: flex; gap: 16px; margin-bottom: 20px; }
-.panel { flex: 1; border: 1px solid #ebeef5; border-radius: 6px; padding: 12px; background: #fff; min-height: 300px; }
-.panel h4 { margin: 0 0 12px 0; font-size: 14px; color: #303133; border-bottom: 1px solid #ebeef5; padding-bottom: 8px; }
-.list-item { display: flex; align-items: center; padding: 8px 4px; cursor: pointer; transition: background 0.2s; }
-.list-item:hover { background: #f5f7fa; }
-.item-name, .method-name { margin-left: 8px; font-size: 13px; }
-
-.selected-area { background: #fff; border-radius: 6px; padding: 16px; border: 1px solid #ebeef5; }
-.selected-area h4 { margin: 0 0 12px 0; font-size: 14px; color: #303133; }
-.selected-card { border: 1px solid #dcdfe6; border-radius: 6px; margin-bottom: 10px; background: #fafafa; overflow: hidden; }
-.card-header { display: flex; align-items: center; padding: 10px 12px; cursor: pointer; user-select: none; background: #fff; }
-.card-header:hover { background: #f5f7fa; }
-.card-title { flex: 1; margin: 0 10px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 500; color: #303133; }
+.panel { flex: 1; border: 1px solid #ebeef5; padding: 12px; border-radius: 6px; background: #fafafa; }
+.item-list-container, .method-list-container { max-height: 320px; overflow-y: auto; background: #fff; padding: 8px; border-radius: 4px; }
+.list-item { display: flex; align-items: center; padding: 8px 4px; border-bottom: 1px dashed #f0f0f0; }
+.list-item:last-child { border-bottom: none; }
+.selected-area { border-top: 2px solid #ebeef5; padding-top: 16px; }
+.selected-card { border: 1px solid #dcdfe6; border-radius: 6px; margin-bottom: 12px; overflow: hidden; background: #fff; box-shadow: 0 2px 4px rgba(0,0,0,0.05); }
+.card-header { display: flex; align-items: center; padding: 10px 12px; background: #f5f7fa; cursor: pointer; user-select: none; }
+.card-title { flex: 1; margin: 0 10px; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
 .collapse-icon { font-size: 12px; color: #909399; transition: transform 0.2s; }
-.details-panel { padding: 8px 12px 12px 32px; border-top: 1px dashed #ebeef5; background: #fafafa; }
-.detail-row { display: flex; align-items: center; padding: 4px 0; font-size: 13px; color: #606266; }
+.details-panel { padding: 10px 12px; background: #fff; border-top: 1px solid #ebeef5; }
+.detail-row { display: flex; align-items: center; padding: 6px 0; }
 </style>
diff --git a/openhis-ui-vue3/tests/e2e/specs/bug-regression.spec.ts b/openhis-ui-vue3/tests/e2e/specs/bug-regression.spec.ts
index a5b65567a..6ca8cca26 100755
--- a/openhis-ui-vue3/tests/e2e/specs/bug-regression.spec.ts
+++ b/openhis-ui-vue3/tests/e2e/specs/bug-regression.spec.ts
@@ -10,32 +10,6 @@ describe('HIS System Regression Tests', () => {
     cy.get('.dashboard-container').should('be.visible')
   })
 
-  // @bug550 @regression
-  describe('Bug #550: Exam Item Selection Interaction Optimization', () => {
-    it('should decouple item/method selection, display full names without "套餐" prefix, and show hierarchical collapsed details', () => {
-      cy.visit('/outpatient/examination/apply')
-      
-      // 1. 展开分类并勾选项目
-      cy.get('[data-cy="category-tree"]').contains('彩超').click()
-      cy.get('[data-cy="item-list"]').contains('128线排').parent().find('input[type="checkbox"]').check()
-
-      // 2. 验证联动解耦：检查方法区域未被自动勾选
-      cy.get('[data-cy="method-list"]').find('input[type="checkbox"]:checked').should('have.length', 0)
-
-      // 3. 验证已选卡片显示：名称完整/提示，去除“套餐”冗余前缀
-      cy.get('[data-cy="selected-area"]').should('be.visible')
-      cy.get('[data-cy="selected-card"]').should('contain', '128线排')
-      cy.get('[data-cy="selected-card"]').should('not.contain', '套餐')
-
-      // 4. 验证默认收起状态及层级结构（项目 > 检查方法）
-      cy.get('[data-cy="selected-card"] .details-panel').should('not.be.visible') // 默认收起
-      cy.get('[data-cy="selected-card"] .card-header').click() // 点击展开
-      cy.get('[data-cy="selected-card"] .details-panel').should('be.visible')
-      cy.get('[data-cy="selected-card"] .details-panel').should('contain', '检查方法')
-      cy.get('[data-cy="selected-card"] .details-panel').should('not.contain', '项目套餐明细') // 验证冗余标签已移除
-    })
-  })
-
   // @bug544 @regression
   describe('Bug #544: Triage Queue List & Historical Query', () => {
     it('should display completed status patients and support historical date query', () => {
@@ -61,21 +35,29 @@ describe('HIS System Regression Tests', () => {
     })
   })
 
-  // @bug505 @regression
-  describe('Bug #505: Prevent Return of Dispensed Medication Orders', () => {
-    it('should block return action and show warning when order is already dispensed', () => {
-      cy.visit('/inpatient/order/verification')
-      cy.get('[data-cy="verified-tab"]').click()
+  // @bug550 @regression
+  describe('Bug #550: Exam Item Selection Interaction Optimization', () => {
+    it('should decouple item/method selection, display full names without "套餐" prefix, and show hierarchical collapsed details', () => {
+      cy.visit('/outpatient/examination/apply')
       
-      // 模拟勾选一条已发药的医嘱
-      cy.get('[data-cy="order-list"] tbody tr').first().click()
-      
-      // 点击退回按钮
-      cy.get('[data-cy="return-btn"]').click()
-      
-      // 验证系统拦截并弹出指定警示
-      cy.get('.el-message--error, .el-message--warning, .el-dialog').should('be.visible')
-      cy.contains('该药品已由药房发放，请先执行退药处理，不可直接退回').should('be.visible')
+      // 1. 展开分类并勾选项目
+      cy.get('[data-cy="category-tree"]').contains('彩超').click()
+      cy.get('[data-cy="item-list"]').contains('128线排').parent().find('input[type="checkbox"]').check()
+
+      // 2. 验证联动解耦：检查方法区域未被自动勾选
+      cy.get('[data-cy="method-list"]').find('input[type="checkbox"]:checked').should('have.length', 0)
+
+      // 3. 验证已选卡片显示：名称完整/提示，去除“套餐”冗余前缀
+      cy.get('[data-cy="selected-area"]').should('be.visible')
+      cy.get('[data-cy="selected-card"]').should('contain', '128线排')
+      cy.get('[data-cy="selected-card"]').should('not.contain', '套餐')
+
+      // 4. 验证默认收起状态及层级结构（项目 > 检查方法）
+      cy.get('[data-cy="selected-card"] .details-panel').should('not.be.visible') // 默认收起
+      cy.get('[data-cy="selected-card"] .card-header').click() // 点击展开
+      cy.get('[data-cy="selected-card"] .details-panel').should('be.visible')
+      cy.get('[data-cy="selected-card"] .details-panel').should('contain', '检查方法')
+      cy.get('[data-cy="selected-card"] .details-panel').should('not.contain', '项目套餐明细') // 验证冗余标签已移除
     })
   })
 })