diff --git a/mobile-uni/src/components/WorkDateSelector.vue b/mobile-uni/src/components/WorkDateSelector.vue
index 7049a07a..a115dd9c 100644
--- a/mobile-uni/src/components/WorkDateSelector.vue
+++ b/mobile-uni/src/components/WorkDateSelector.vue
@@ -20,6 +20,7 @@
 
 <script setup lang="ts">
 import { computed } from 'vue';
+import { currentShanghaiDate } from '@/utils/date';
 
 const props = withDefaults(defineProps<{
   modelValue: string;
@@ -33,8 +34,7 @@ const emit = defineEmits<{
   change: [value: string];
 }>();
 
-const currentDate = () => new Date().toLocaleDateString('sv-SE', { timeZone: 'Asia/Shanghai' });
-const today = computed(() => props.maxDate || currentDate());
+const today = computed(() => props.maxDate || currentShanghaiDate());
 
 const displayDate = computed(() => {
   if (props.modelValue === today.value) return `今天 · ${props.modelValue}`;
diff --git a/mobile-uni/src/pages/supervisor/review/index.vue b/mobile-uni/src/pages/supervisor/review/index.vue
index 6ec43acd..941ab1b3 100644
--- a/mobile-uni/src/pages/supervisor/review/index.vue
+++ b/mobile-uni/src/pages/supervisor/review/index.vue
@@ -528,9 +528,9 @@ const markReviewed = async () => {
       nextReason: nextScenarioId.value ? nextReason.value.trim() : undefined,
       confirmedGrowthLevel: confirmedGrowthLevel.value || undefined
     });
-    const params = new URLSearchParams({ id: String(detail.value.id) });
-    if (assignedScenario) params.set('assigned', assignedScenario);
-    uni.redirectTo({ url: `/pages/supervisor/review/done?${params.toString()}` });
+    const params = [`id=${encodeURIComponent(String(detail.value.id))}`];
+    if (assignedScenario) params.push(`assigned=${encodeURIComponent(assignedScenario)}`);
+    uni.redirectTo({ url: `/pages/supervisor/review/done?${params.join('&')}` });
   } catch (error) {
     handleRequestError(error, '标记失败');
   } finally {
diff --git a/mobile-uni/src/pages/supervisor/work-results/index.vue b/mobile-uni/src/pages/supervisor/work-results/index.vue
index 4b0a723f..18e30ac6 100644
--- a/mobile-uni/src/pages/supervisor/work-results/index.vue
+++ b/mobile-uni/src/pages/supervisor/work-results/index.vue
@@ -55,6 +55,7 @@ import { fetchMobileIdentity } from '@/services/position';
 import { updateAssistantCaptureStatus } from '@/services/personal-assistant';
 import { openProtectedSource } from '@/services/source-preview';
 import { getProjectWorkResult } from '@/services/work-results';
+import { currentShanghaiDate } from '@/utils/date';
 import SupervisorTabBar from '@/components/SupervisorTabBar.vue';
 import WorkDateSelector from '@/components/WorkDateSelector.vue';
 
@@ -62,8 +63,7 @@ const result = ref<ProjectWorkResult | null>(null);
 const currentProject = ref<MobileProject | null>(getCurrentProject());
 const message = ref('');
 const loading = ref(false);
-const currentDate = () => new Date().toLocaleDateString('sv-SE', { timeZone: 'Asia/Shanghai' });
-const today = ref(currentDate());
+const today = ref(currentShanghaiDate());
 const workDate = ref(today.value);
 const pageNum = ref(1);
 const pageSize = 20;
@@ -116,7 +116,7 @@ const openSource = (item: WorkResultItem) => openProtectedSource(item.sourceUrl,
 const sourceLabel = (value: string) => ({ TEXT: '文字来源', VOICE: '原始语音', IMAGE: '现场照片', VIDEO: '现场视频' }[value] || '原始来源');
 const goBack = () => uni.navigateBack({ fail: () => uni.redirectTo({ url: '/pages/supervisor/index/index' }) });
 onShow(() => {
-  today.value = currentDate();
+  today.value = currentShanghaiDate();
   load();
 });
 </script>
diff --git a/mobile-uni/src/pages/user/work-results/index.vue b/mobile-uni/src/pages/user/work-results/index.vue
index 088e5c88..c871d0f4 100644
--- a/mobile-uni/src/pages/user/work-results/index.vue
+++ b/mobile-uni/src/pages/user/work-results/index.vue
@@ -73,14 +73,14 @@ import { fetchMobileIdentity } from '@/services/position';
 import { updateAssistantCaptureStatus } from '@/services/personal-assistant';
 import { openProtectedSource } from '@/services/source-preview';
 import { generateMyWorkResult } from '@/services/work-results';
+import { currentShanghaiDate } from '@/utils/date';
 import WorkDateSelector from '@/components/WorkDateSelector.vue';
 
 const result = ref<WorkResult | null>(null);
 const currentProject = ref<MobileProject | null>(getCurrentProject());
 const loading = ref(false);
 const message = ref('');
-const currentDate = () => new Date().toLocaleDateString('sv-SE', { timeZone: 'Asia/Shanghai' });
-const today = ref(currentDate());
+const today = ref(currentShanghaiDate());
 const workDate = ref(today.value);
 const isToday = computed(() => workDate.value === today.value);
 const emptyTitle = computed(() => isToday.value ? '今天还没有已确认的工作记录' : '这一天没有已确认的工作记录');
@@ -147,7 +147,7 @@ const handleEmptyAction = () => isToday.value ? goAssistant() : changeWorkDate(t
 const goBack = () => uni.navigateBack({ fail: () => uni.switchTab({ url: '/pages/user/today/index' }) });
 
 onShow(() => {
-  today.value = currentDate();
+  today.value = currentShanghaiDate();
   load();
 });
 </script>
diff --git a/mobile-uni/src/services/work-results.ts b/mobile-uni/src/services/work-results.ts
index 9baf6f47..5faee848 100644
--- a/mobile-uni/src/services/work-results.ts
+++ b/mobile-uni/src/services/work-results.ts
@@ -2,11 +2,11 @@ import type { ProjectWorkResult, WorkResult } from '@/types/api';
 import { apiRequest } from './api';
 
 const params = (projectCode: string, workDate?: string, pageNum?: number, pageSize?: number) => {
-  const query = new URLSearchParams({ projectCode });
-  if (workDate) query.set('workDate', workDate);
-  if (pageNum) query.set('pageNum', String(pageNum));
-  if (pageSize) query.set('pageSize', String(pageSize));
-  return query.toString();
+  const query = [`projectCode=${encodeURIComponent(projectCode)}`];
+  if (workDate) query.push(`workDate=${encodeURIComponent(workDate)}`);
+  if (pageNum) query.push(`pageNum=${pageNum}`);
+  if (pageSize) query.push(`pageSize=${pageSize}`);
+  return query.join('&');
 };
 
 export const generateMyWorkResult = (projectCode: string, workDate?: string) =>
diff --git a/mobile-uni/src/utils/date.ts b/mobile-uni/src/utils/date.ts
new file mode 100644
index 00000000..1414fdc6
--- /dev/null
+++ b/mobile-uni/src/utils/date.ts
@@ -0,0 +1 @@
+export const currentShanghaiDate = () => new Date(Date.now() + 8 * 60 * 60 * 1000).toISOString().slice(0, 10);
diff --git a/mobile-uni/tests/work-results.test.mjs b/mobile-uni/tests/work-results.test.mjs
index 3841ea04..79da62fe 100644
--- a/mobile-uni/tests/work-results.test.mjs
+++ b/mobile-uni/tests/work-results.test.mjs
@@ -32,6 +32,33 @@ test('员工成果页与主管成果页复用真实项目成果接口', async ()
   assert.match(service, /pageSize/);
 });
 
+test('App-Plus 查询参数不依赖 URLSearchParams', async () => {
+  const [service, supervisorReview] = await Promise.all([
+    read('../src/services/work-results.ts'),
+    read('../src/pages/supervisor/review/index.vue')
+  ]);
+
+  assert.doesNotMatch(`${service}\n${supervisorReview}`, /URLSearchParams/);
+  assert.match(service, /encodeURIComponent\(projectCode\)/);
+  assert.match(supervisorReview, /encodeURIComponent\(assignedScenario\)/);
+});
+
+test('App-Plus 工作成果日期固定为上海 yyyy-MM-dd', async () => {
+  const [dateUtil, selector, employeePage, supervisorPage] = await Promise.all([
+    read('../src/utils/date.ts'),
+    read('../src/components/WorkDateSelector.vue'),
+    read('../src/pages/user/work-results/index.vue'),
+    read('../src/pages/supervisor/work-results/index.vue')
+  ]);
+
+  assert.match(dateUtil, /Date\.now\(\) \+ 8 \* 60 \* 60 \* 1000/);
+  assert.match(dateUtil, /toISOString\(\)\.slice\(0, 10\)/);
+  assert.doesNotMatch(`${selector}\n${employeePage}\n${supervisorPage}`, /toLocaleDateString/);
+  for (const source of [selector, employeePage, supervisorPage]) {
+    assert.match(source, /currentShanghaiDate/);
+  }
+});
+
 test('主管成果页显式分页，避免把接口上限误当作完整团队', async () => {
   const [supervisorPage, service, types] = await Promise.all([
     read('../src/pages/supervisor/work-results/index.vue'),
@@ -80,7 +107,7 @@ test('员工与主管成果页复用日期选择器查看历史成果且禁止
   assert.match(supervisorPage, /getProjectWorkResult\(currentProject\.value\.projectCode, workDate\.value, pageNum\.value, pageSize\)/);
   assert.match(dateSelector, /mode="date"/);
   assert.match(dateSelector, /:end="today"/);
-  assert.match(dateSelector, /props\.maxDate \|\| currentDate\(\)/);
+  assert.match(dateSelector, /props\.maxDate \|\| currentShanghaiDate\(\)/);
   assert.match(dateSelector, /nextDate > today\.value/);
   assert.match(employeePage, /这一天没有已确认的工作记录/);
   assert.match(employeePage, /回到今天/);