diff --git a/src/Jiaowu.Api/Infrastructure/Grades/ExperimentGradeAggregationService.cs b/src/Jiaowu.Api/Infrastructure/Grades/ExperimentGradeAggregationService.cs
index e9baff4..e30c0bf 100644
--- a/src/Jiaowu.Api/Infrastructure/Grades/ExperimentGradeAggregationService.cs
+++ b/src/Jiaowu.Api/Infrastructure/Grades/ExperimentGradeAggregationService.cs
@@ -58,9 +58,8 @@ public static class ExperimentGradeAggregationService
             cancellationToken);
         var requestedStudentIds = studentIds.Distinct().ToArray();
         var persistedScores = await db.ExperimentCourseGrades.AsNoTracking()
-            .Where(x =>
-                x.TeachingTaskId == teachingTaskId &&
-                requestedStudentIds.Contains(x.StudentId))
+            .Where(x => x.TeachingTaskId == teachingTaskId)
+            .WhereIn(requestedStudentIds, x => x.StudentId)
             .ToDictionaryAsync(
                 x => x.StudentId,
                 x => x.WeightedAverageScore,
diff --git a/tests/Jiaowu.Api.Tests/MySqlMigrationTests.cs b/tests/Jiaowu.Api.Tests/MySqlMigrationTests.cs
index 724dfeb..63e038a 100644
--- a/tests/Jiaowu.Api.Tests/MySqlMigrationTests.cs
+++ b/tests/Jiaowu.Api.Tests/MySqlMigrationTests.cs
@@ -109,6 +109,34 @@ public sealed class MySqlMigrationTests
         Assert.Contains(ids[1].ToString(), sql, StringComparison.OrdinalIgnoreCase);
     }
 
+    [Fact]
+    public void MySql_experiment_course_grade_lookup_uses_provider_safe_predicates()
+    {
+        using var db = new AppDbContext(CreateMySqlOptions());
+        var teachingTaskId = Guid.Parse(
+            "33333333-3333-3333-3333-333333333333");
+        var studentIds = new[]
+        {
+            Guid.Parse("11111111-1111-1111-1111-111111111111"),
+            Guid.Parse("22222222-2222-2222-2222-222222222222")
+        };
+
+        var sql = db.ExperimentCourseGrades
+            .Where(x => x.TeachingTaskId == teachingTaskId)
+            .WhereIn(studentIds, x => x.StudentId)
+            .ToQueryString();
+
+        Assert.Contains(" IN (", sql, StringComparison.OrdinalIgnoreCase);
+        Assert.Contains(
+            teachingTaskId.ToString(),
+            sql,
+            StringComparison.OrdinalIgnoreCase);
+        Assert.All(studentIds, studentId => Assert.Contains(
+            studentId.ToString(),
+            sql,
+            StringComparison.OrdinalIgnoreCase));
+    }
+
     [Fact]
     public void MySql_attendance_device_hash_query_uses_provider_safe_predicates()
     {
diff --git a/web/src/layouts/AdminLayout.vue b/web/src/layouts/AdminLayout.vue
index 7d97de7..d022158 100644
--- a/web/src/layouts/AdminLayout.vue
+++ b/web/src/layouts/AdminLayout.vue
@@ -151,21 +151,14 @@ const navigationGroups = computed<NavigationGroup[]>(() => [
       ),
       ...whenVisible(isStudent.value || isTeacher.value, { path: '/my-timetable', label: isTeacher.value ? '我的授课课表' : '我的课表' }),
       ...whenVisible(isStudent.value, { path: '/free-classrooms', label: '空闲教室' }),
+      {
+        path: '/class-timetable',
+        label: isTimetableManager.value ? '课表查询中心' : '班级课表查询',
+      },
       {
         path: '/classroom-reservations',
         label: hasAnyRole(['CollegeAdmin']) ? '教室借用审核' : '教室借用',
       },
-      ...whenVisible(isTeacher.value || isTeachingAdmin.value || hasAnyRole(['Counselor']), { path: '/teacher-attendance', label: '教学点名' }),
-      ...whenVisible(isStudent.value, { path: '/my-attendance', label: '我的考勤' }),
-      {
-        path: '/evaluations',
-        label: isStudent.value ? '学生评教' : isTeacher.value ? '评教结果' : '教学评价',
-      },
-      ...whenVisible(isTeacher.value, { path: '/teacher-roster', label: '选课名单' }),
-      ...whenVisible(!isStudent.value, {
-        path: '/class-timetable',
-        label: isTimetableManager.value ? '课表查询中心' : '班级课表查询',
-      }),
       ...whenVisible(
         hasAnyRole(['SuperAdmin', 'AcademicAdmin', 'CollegeAdmin', 'Student']),
         {
@@ -173,6 +166,26 @@ const navigationGroups = computed<NavigationGroup[]>(() => [
           label: isTeachingAdmin.value ? '选课管理' : '学生选课',
         },
       ),
+      ...whenVisible(
+        hasAnyRole(['SuperAdmin', 'AcademicAdmin', 'CollegeAdmin', 'Teacher']),
+        {
+          path: '/course-adjustments',
+          label: isTeacher.value ? '我的调停课' : '调停课审核',
+        },
+      ),
+    ],
+  },
+  {
+    key: 'teaching-assessment',
+    label: '教学考核',
+    items: [
+      ...whenVisible(isTeacher.value || isTeachingAdmin.value || hasAnyRole(['Counselor']), { path: '/teacher-attendance', label: '教学点名' }),
+      ...whenVisible(isStudent.value, { path: '/my-attendance', label: '我的考勤' }),
+      {
+        path: '/evaluations',
+        label: isStudent.value ? '学生评教' : isTeacher.value ? '评教结果' : '教学评价',
+      },
+      ...whenVisible(isTeacher.value, { path: '/teacher-roster', label: '选课名单' }),
       ...whenVisible(
         hasAnyRole(['SuperAdmin', 'AcademicAdmin', 'CollegeAdmin', 'Teacher', 'Student', 'Counselor']),
         { path: '/grades', label: isStudent.value ? '学业成绩' : isTeacher.value ? '成绩录入' : '成绩管理' },
@@ -181,6 +194,12 @@ const navigationGroups = computed<NavigationGroup[]>(() => [
         hasAnyRole(['SuperAdmin', 'AcademicAdmin', 'CollegeAdmin', 'Leader', 'Teacher']),
         { path: '/grade-analytics', label: isTeacher.value ? '教学班成绩分析' : '成绩分析中心' },
       ),
+    ],
+  },
+  {
+    key: 'examinations',
+    label: '考试管理',
+    items: [
       ...whenVisible(
         hasAnyRole(['SuperAdmin', 'AcademicAdmin', 'Student']),
         { path: '/other-exams', label: '其他考试成绩' },
@@ -199,26 +218,11 @@ const navigationGroups = computed<NavigationGroup[]>(() => [
           label: isStudent.value ? '我的补考' : isTeacher.value ? '补考监考' : '补考安排',
         },
       ),
-      ...whenVisible(
-        hasAnyRole(['SuperAdmin', 'AcademicAdmin', 'CollegeAdmin', 'Teacher']),
-        {
-          path: '/course-adjustments',
-          label: isTeacher.value ? '我的调停课' : '调停课审核',
-        },
-      ),
-      ...whenVisible(
-        hasAnyRole(['SuperAdmin', 'AcademicAdmin', 'CollegeAdmin', 'Counselor', 'Teacher', 'Student']),
-        { path: '/approvals', label: '审批中心' },
-      ),
-      ...whenVisible(
-        hasAnyRole(['SuperAdmin', 'AcademicAdmin', 'Counselor', 'Student']),
-        { path: '/warnings', label: '学业预警' },
-      ),
     ],
   },
   {
     key: 'student-status',
-    label: '学籍管理',
+    label: '学籍与服务',
     items: [
       ...whenVisible(
         isStudent.value,
@@ -232,6 +236,14 @@ const navigationGroups = computed<NavigationGroup[]>(() => [
         hasAnyRole(['SuperAdmin', 'AcademicAdmin', 'CollegeAdmin', 'Student']),
         { path: '/official-documents', label: isStudent.value ? '电子成绩单与证明' : '官方凭证签发' },
       ),
+      ...whenVisible(
+        hasAnyRole(['SuperAdmin', 'AcademicAdmin', 'CollegeAdmin', 'Counselor', 'Teacher', 'Student']),
+        { path: '/approvals', label: '审批中心' },
+      ),
+      ...whenVisible(
+        hasAnyRole(['SuperAdmin', 'AcademicAdmin', 'Counselor', 'Student']),
+        { path: '/warnings', label: '学业预警' },
+      ),
     ],
   },
   {
diff --git a/web/src/style.css b/web/src/style.css
index 3213825..c9389a8 100644
--- a/web/src/style.css
+++ b/web/src/style.css
@@ -1274,6 +1274,9 @@ button { cursor: pointer; }
 .sso-binding-card > a { color: #315b73; font-size: 13px; font-weight: 650; text-decoration: none; }
 
 @media (max-width: 1100px) {
+  .desktop-navigation { padding-inline: 20px; }
+  .horizontal-menu.el-menu--horizontal > .el-menu-item,
+  .horizontal-menu.el-menu--horizontal > .el-sub-menu .el-sub-menu__title { padding-inline: 12px; }
   .metric-grid { grid-template-columns: repeat(2, 1fr); }
   .dashboard-grid { grid-template-columns: 1fr; }
   .login-page { grid-template-columns: 1fr 430px; }