细节优化——1

frontend/src/components/Layout.vue

@@ -7,7 +7,7 @@
       </div>
       <el-menu 
         router 
-        :default-active="$route.path"
+        :default-active="activeMenu"
         :collapse="isCollapsed"
         :collapse-transition="true"
         class="aside-menu"
@@ -75,7 +75,7 @@
           </el-sub-menu>
           <el-menu-item index="/study/finance">
             <el-icon><Coin /></el-icon>
-            <span>费用治理</span>
+            <span>费用管理</span>
           </el-menu-item>
           <el-menu-item index="/study/faq">
             <el-icon><Notebook /></el-icon>
@@ -143,7 +143,7 @@
 
 <script setup lang="ts">
 import { computed, ref } from "vue";
-import { useRouter } from "vue-router";
+import { useRoute, useRouter } from "vue-router";
 import { useAuthStore } from "../store/auth";
 import { useStudyStore } from "../store/study";
 import StudySelector from "./StudySelector.vue";
@@ -155,9 +155,23 @@ import {
 const auth = useAuthStore();
 const study = useStudyStore();
 const router = useRouter();
+const route = useRoute();
 const isAdmin = computed(() => auth.user?.role === "ADMIN");
 const isPm = computed(() => auth.user?.role === "PM" || study.currentStudyRole === "PM");
 const isCollapsed = ref(localStorage.getItem("ctms_sidebar_collapsed") === "1");
+const activeMenu = computed(() => {
+  const path = route.path;
+  if (path.startsWith("/study/milestones/")) return "/study/milestones";
+  if (path.startsWith("/study/subjects/")) return "/study/subjects";
+  if (path.startsWith("/study/aes/")) return "/study/aes";
+  if (path.startsWith("/study/issues/")) return "/study/issues";
+  if (path.startsWith("/study/data-queries/")) return "/study/data-queries";
+  if (path.startsWith("/study/finance/")) return "/study/finance";
+  if (path.startsWith("/study/faq/")) return "/study/faq";
+  if (path.startsWith("/projects/")) return "/admin/projects";
+  if (path.startsWith("/admin/projects/")) return "/admin/projects";
+  return path;
+});
 
 const toggleCollapse = () => {
   isCollapsed.value = !isCollapsed.value;