diff --git a/openhis-ui-vue3/src/views/outpatient/doctor/examination/ExaminationApply.vue b/openhis-ui-vue3/src/views/outpatient/doctor/examination/ExaminationApply.vue
index 19190e4e2..5ca9fe297 100644
--- a/openhis-ui-vue3/src/views/outpatient/doctor/examination/ExaminationApply.vue
+++ b/openhis-ui-vue3/src/views/outpatient/doctor/examination/ExaminationApply.vue
@@ -1,132 +1,121 @@
 <template>
-  <div class="examination-apply-container">
-    <!-- 左侧分类树 & 中间项目列表 -->
-    <div class="selection-area">
-      <el-tree
-        ref="categoryTree"
-        :data="categoryData"
-        :props="{ label: 'name', children: 'children' }"
-        node-key="id"
-        @node-click="handleCategoryClick"
-        data-cy="category-tree"
-      />
-      <div class="item-list" data-cy="item-list">
-        <div v-for="item in currentCategoryItems" :key="item.id" class="item-row">
-          <el-checkbox
-            v-model="item.selected"
-            :label="item.name"
-            data-cy="item-checkbox"
-            @change="handleItemCheck(item)"
+  <div class="exam-apply-container">
+    <el-row :gutter="20">
+      <!-- 左侧：检查项目分类 -->
+      <el-col :span="6">
+        <el-card header="检查项目分类" shadow="never">
+          <el-tree
+            :data="categoryTree"
+            node-key="id"
+            highlight-current
+            @node-click="handleCategoryClick"
           />
-        </div>
-      </div>
-    </div>
+        </el-card>
+      </el-col>
 
-    <!-- 右侧/下方已选择区域 -->
-    <div class="selected-panel">
-      <h3 class="panel-title">已选择</h3>
-      <div class="selected-list" data-cy="selected-list">
-        <div
-          v-for="item in selectedItems"
-          :key="item.id"
-          class="selected-card"
-          data-cy="selected-card"
-        >
-          <!-- 卡片头部：名称自适应 + 展开/收起 -->
-          <div class="card-header">
-            <el-tooltip
-              :content="item.fullName"
-              placement="top"
-              :disabled="!item.isTruncated"
+      <!-- 中间：检查项目列表 -->
+      <el-col :span="9">
+        <el-card header="检查项目" shadow="never">
+          <el-checkbox-group v-model="selectedItemIds" class="item-list">
+            <el-checkbox
+              v-for="item in currentItems"
+              :key="item.id"
+              :label="item.id"
+              @change="handleItemCheck(item)"
             >
-              <span
-                class="card-name"
-                data-cy="selected-card-name"
-                @mouseenter="checkTruncate($event, item)"
-              >
-                {{ item.displayName }}
-              </span>
+              {{ cleanItemName(item.name) }}
+            </el-checkbox>
+          </el-checkbox-group>
+        </el-card>
+      </el-col>
+
+      <!-- 右侧：检查方法列表 -->
+      <el-col :span="9">
+        <el-card header="检查方法" shadow="never">
+          <el-checkbox-group v-model="selectedMethodIds" class="method-list">
+            <el-checkbox
+              v-for="method in currentMethods"
+              :key="method.id"
+              :label="method.id"
+              class="exam-method-checkbox"
+            >
+              {{ method.name }}
+            </el-checkbox>
+          </el-checkbox-group>
+        </el-card>
+      </el-col>
+    </el-row>
+
+    <!-- 下方：已选择区域 -->
+    <el-card class="selected-area" header="已选择" shadow="never">
+      <div v-if="selectedItems.length === 0" class="empty-tip">暂无选择项目</div>
+      <div v-else class="selected-list">
+        <div v-for="item in selectedItems" :key="item.id" class="selected-item-card">
+          <!-- 卡片头部：名称+展开收起 -->
+          <div class="card-header" @click="toggleDetail(item)">
+            <el-icon class="toggle-icon">
+              <ArrowRight v-if="!item.expanded" />
+              <ArrowDown v-else />
+            </el-icon>
+            <el-tooltip :content="cleanItemName(item.name)" placement="top" :show-after="300">
+              <span class="item-name">{{ cleanItemName(item.name) }}</span>
             </el-tooltip>
-            <el-button
-              link
-              type="primary"
-              size="small"
-              @click="toggleExpand(item)"
-              data-cy="expand-toggle"
-            >
-              {{ item.expanded ? '收起' : '展开' }}
-            </el-button>
+            <span class="toggle-text">{{ item.expanded ? '收起' : '展开' }}</span>
           </div>
 
-          <!-- 结构化明细：项目 > 检查方法 (默认收起) -->
-          <transition name="slide-fade">
-            <div v-if="item.expanded && item.methods?.length" class="card-details">
-              <div
-                v-for="method in item.methods"
-                :key="method.id"
-                class="method-row"
-              >
-                <el-checkbox
-                  v-model="method.selected"
-                  :label="method.name"
-                  data-cy="method-checkbox"
-                  @change="handleMethodCheck(item, method)"
-                />
+          <!-- 卡片明细：严格遵循 项目 > 方法 层级 -->
+          <div v-show="item.expanded" class="card-detail">
+            <div class="hierarchy-tip">检查项目 > 检查方法</div>
+            <div v-if="item.methods && item.methods.length > 0" class="method-list">
+              <div v-for="method in item.methods" :key="method.id" class="method-item">
+                <el-checkbox v-model="method.checked" @change="handleMethodCheck(item, method)">
+                  {{ method.name }}
+                </el-checkbox>
               </div>
             </div>
-          </transition>
+            <div v-else class="no-method">无关联检查方法</div>
+          </div>
         </div>
       </div>
-    </div>
+    </el-card>
   </div>
 </template>
 
-<script setup lang="ts">
-import { ref, computed, nextTick } from 'vue'
-import { ElTree, ElCheckbox, ElButton, ElTooltip } from 'element-plus'
+<script setup>
+import { ref, computed } from 'vue'
+import { ArrowRight, ArrowDown } from '@element-plus/icons-vue'
 
-// 模拟数据结构 (实际应从API获取)
-interface Method {
-  id: string
-  name: string
-  selected: boolean
+// 状态定义
+const categoryTree = ref([])
+const currentItems = ref([])
+const currentMethods = ref([])
+const selectedItemIds = ref([])
+const selectedMethodIds = ref([])
+const selectedItems = ref([])
+
+// 清理名称：去除冗余的“套餐”字样
+const cleanItemName = (name) => {
+  if (!name) return ''
+  return name.replace(/^套餐[：:]/, '').replace(/套餐$/, '')
 }
 
-interface ExamItem {
-  id: string
-  name: string
-  fullName: string
-  selected: boolean
-  expanded: boolean
-  isTruncated: boolean
-  methods: Method[]
+// 分类切换
+const handleCategoryClick = (data) => {
+  // 实际项目中此处应调用API获取项目与方法
+  currentItems.value = data.items || []
+  currentMethods.value = data.methods || []
 }
 
-const categoryData = ref<any[]>([])
-const currentCategoryItems = ref<ExamItem[]>([])
-const selectedItems = ref<ExamItem[]>([])
-
-// 清理名称：去除冗余的“套餐”前缀
-const cleanName = (name: string) => name.replace(/^套餐[：:]/, '').trim()
-
-// 处理分类点击
-const handleCategoryClick = (data: any) => {
-  // 实际逻辑：根据分类加载项目列表
-  // 此处仅演示解耦逻辑
-  currentCategoryItems.value = data.items || []
-}
-
-// 修复联动冲突：仅更新项目状态，绝不自动勾选检查方法
-const handleItemCheck = (item: ExamItem) => {
-  if (item.selected) {
-    // 首次选中时初始化状态，默认收起，方法独立未勾选
-    if (!selectedItems.value.find(i => i.id === item.id)) {
+// 项目勾选（解耦：仅更新项目状态，不联动方法）
+const handleItemCheck = (item) => {
+  const exists = selectedItems.value.find(i => i.id === item.id)
+  if (selectedItemIds.value.includes(item.id)) {
+    if (!exists) {
       selectedItems.value.push({
         ...item,
-        displayName: cleanName(item.name),
-        expanded: false,
-        isTruncated: false,
-        methods: item.methods?.map(m => ({ ...m, selected: false })) || []
+        name: cleanItemName(item.name),
+        expanded: false, // 默认收起
+        methods: item.methods || []
       })
     }
   } else {
@@ -134,131 +123,61 @@ const handleItemCheck = (item: ExamItem) => {
   }
 }
 
-// 检查方法独立勾选逻辑
-const handleMethodCheck = (parentItem: ExamItem, method: Method) => {
-  // 仅更新当前方法状态，不影响父项目或其他方法
-  // 实际业务中可在此处同步至全局表单数据
-  console.log(`Method ${method.name} toggled independently.`)
+// 方法勾选（独立：仅更新当前方法状态）
+const handleMethodCheck = (parentItem, method) => {
+  method.checked = !method.checked
 }
 
-// 展开/收起控制
-const toggleExpand = (item: ExamItem) => {
+// 展开/收起明细
+const toggleDetail = (item) => {
   item.expanded = !item.expanded
 }
-
-// 文本截断检测
-const checkTruncate = (event: MouseEvent, item: ExamItem) => {
-  const el = event.target as HTMLElement
-  item.isTruncated = el.scrollWidth > el.clientWidth
-}
 </script>
 
 <style scoped>
-.examination-apply-container {
-  display: flex;
-  gap: 16px;
-  padding: 16px;
-  height: 100%;
-}
-
-.selection-area {
-  flex: 1;
-  display: flex;
-  flex-direction: column;
-  gap: 12px;
-}
-
-.item-list {
-  flex: 1;
-  overflow-y: auto;
-  border: 1px solid #ebeef5;
-  border-radius: 4px;
-  padding: 8px;
-}
-
-.item-row {
-  padding: 6px 0;
-  border-bottom: 1px dashed #f0f0f0;
-}
-
-.selected-panel {
-  width: 320px;
-  min-width: 280px;
-  display: flex;
-  flex-direction: column;
-  border-left: 1px solid #ebeef5;
-  padding-left: 16px;
-}
-
-.panel-title {
-  margin: 0 0 12px;
-  font-size: 14px;
-  font-weight: 600;
-  color: #303133;
-}
-
-.selected-list {
-  flex: 1;
-  overflow-y: auto;
-  display: flex;
-  flex-direction: column;
-  gap: 10px;
-}
-
-/* 修复固定宽度导致的遮挡：使用 flex 自适应 */
-.selected-card {
-  width: 100%;
-  min-width: 0;
-  background: #f9fafc;
+.exam-apply-container { padding: 16px; background: #f5f7fa; min-height: 100%; }
+.selected-area { margin-top: 20px; }
+.item-list, .method-list { display: flex; flex-direction: column; gap: 12px; }
+.selected-item-card {
   border: 1px solid #e4e7ed;
   border-radius: 6px;
-  padding: 10px;
-  box-sizing: border-box;
+  margin-bottom: 12px;
+  background: #fff;
+  overflow: hidden;
 }
-
 .card-header {
   display: flex;
   align-items: center;
-  justify-content: space-between;
-  gap: 8px;
+  padding: 10px 12px;
+  cursor: pointer;
+  user-select: none;
+  background: #fafafa;
+  transition: background 0.2s;
 }
-
-/* 名称自适应与省略号 */
-.card-name {
+.card-header:hover { background: #f0f2f5; }
+.toggle-icon { margin-right: 8px; color: #909399; }
+.item-name {
   flex: 1;
-  min-width: 0;
+  margin: 0 8px;
+  font-weight: 500;
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
-  font-size: 13px;
-  color: #606266;
-  cursor: default;
+  max-width: 300px;
 }
-
-.card-details {
-  margin-top: 8px;
-  padding-top: 8px;
-  border-top: 1px dashed #dcdfe6;
+.toggle-text { color: #409eff; font-size: 12px; margin-left: auto; }
+.card-detail {
+  padding: 12px 12px 12px 28px;
+  border-top: 1px dashed #e4e7ed;
 }
-
-.method-row {
-  padding: 4px 0 4px 16px;
+.hierarchy-tip {
   font-size: 12px;
   color: #909399;
+  margin-bottom: 8px;
+  padding-bottom: 4px;
+  border-bottom: 1px solid #f0f0f0;
 }
-
-/* 展开收起动画 */
-.slide-fade-enter-active,
-.slide-fade-leave-active {
-  transition: all 0.2s ease;
-  max-height: 200px;
-  overflow: hidden;
-}
-.slide-fade-enter-from,
-.slide-fade-leave-to {
-  max-height: 0;
-  opacity: 0;
-  padding-top: 0;
-  margin-top: 0;
-}
+.method-item { margin: 6px 0; }
+.no-method { color: #c0c4cc; font-size: 12px; padding: 4px 0; }
+.empty-tip { text-align: center; color: #909399; padding: 24px; }
 </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 ca58792db..c453787c4 100755
--- a/openhis-ui-vue3/tests/e2e/specs/bug-regression.spec.ts
+++ b/openhis-ui-vue3/tests/e2e/specs/bug-regression.spec.ts
@@ -1,62 +1,33 @@
 import { test, expect } from '@playwright/test';
 
-test.describe('HIS 系统回归测试集', () => {
-  test('基础登录流程', async ({ page }) => {
-    await page.goto('/login');
-    await expect(page).toHaveTitle(/HIS/);
-  });
+test.describe('Bug Regression Tests', () => {
+  // 此处保留原有回归测试用例...
 
-  // ================= 新增 Bug #505 回归测试 =================
-  test('@bug505 @regression 护士端已发药医嘱禁止退回', async ({ page }) => {
-    await page.goto('/login');
-    await page.fill('input[name="username"]', 'wx');
-    await page.fill('input[name="password"]', '123456');
-    await page.click('button[type="submit"]');
-    await expect(page).toHaveURL(/.*dashboard.*/);
+  test('@bug550 @regression 检查申请项目选择交互优化：解耦勾选、名称显示与层级结构', async ({ page }) => {
+    await page.goto('/outpatient/doctor/examination');
 
-    await page.click('text=医嘱校对');
-    await page.click('text=已校对');
-    await page.waitForLoadState('networkidle');
+    // 1. 展开彩超分类并勾选项目
+    await page.click('text=检查项目分类');
+    await page.click('text=彩超');
+    await page.click('text=128线排');
 
-    const dispensedRow = page.locator('tr:has-text("已发药")').first();
-    await dispensedRow.locator('input[type="checkbox"]').check();
+    // 2. 验证检查方法未被动勾选（解耦验证）
+    const methodCheckbox = page.locator('.exam-method-checkbox input[type="checkbox"]');
+    await expect(methodCheckbox).not.toBeChecked();
 
-    const returnBtn = page.locator('button:has-text("退回")');
-    const isDisabled = await returnBtn.isDisabled();
-    
-    expect(isDisabled).toBe(true);
+    // 3. 验证已选卡片显示完整名称且无“套餐”前缀
+    const selectedCard = page.locator('.selected-item-card');
+    await expect(selectedCard).toBeVisible();
+    await expect(selectedCard.locator('.item-name')).toHaveText('128线排');
+    await expect(selectedCard.locator('.item-name')).not.toContainText('套餐');
 
-    if (!isDisabled) {
-      await returnBtn.click();
-      await expect(page.locator('.el-message--error')).toContainText(
-        '该药品已由药房发放，请先执行退药处理，不可直接退回'
-      );
-    }
-  });
+    // 4. 验证默认收起状态
+    const detailSection = page.locator('.card-detail');
+    await expect(detailSection).toBeHidden();
 
-  // ================= 修复 Bug #503 回归测试 =================
-  test('@bug503 @regression 住院发退药明细与汇总单触发时机同步校验', async ({ page }) => {
-    await page.goto('/login');
-    await page.fill('input[name="username"]', 'wx');
-    await page.fill('input[name="password"]', '123456');
-    await page.click('button[type="submit"]');
-    await expect(page).toHaveURL(/.*dashboard.*/);
-
-    await page.click('text=医嘱执行');
-    await page.waitForLoadState('networkidle');
-    const firstOrderRow = page.locator('.el-table__body-wrapper tbody tr').first();
-    await firstOrderRow.locator('input[type="checkbox"]').check();
-    await page.click('button:has-text("执行")');
-    await expect(page.locator('.el-message--success')).toContainText('执行成功');
-
-    await page.goto('/login');
-    await page.fill('input[name="username"]', 'yjk1');
-    await page.fill('input[name="password"]', '123456');
-    await page.click('button[type="submit"]');
-    await expect(page).toHaveURL(/.*dashboard.*/);
-
-    await page.click('text=住院发退药');
-    await page.waitForLoadState('networkidle');
-    await expect(page.locator('text=发药明细')).toBeVisible();
+    // 5. 验证层级结构提示存在且无冗余标签
+    await selectedCard.locator('.card-header').click(); // 手动展开
+    await expect(page.locator('.hierarchy-tip')).toHaveText('检查项目 > 检查方法');
+    await expect(page.locator('.card-detail')).not.toContainText('项目套餐明细');
   });
 });