diff --git a/e2e/auth-guard.spec.ts b/e2e/auth-guard.spec.ts
index 5a559df..a1c6f67 100644
--- a/e2e/auth-guard.spec.ts
+++ b/e2e/auth-guard.spec.ts
@@ -20,7 +20,7 @@ test.describe('Auth guard', () => {
   });
 
   test('allows access to /welcome when authenticated', async ({ page }) => {
-    await page.route('**/api/review/feed', (route) =>
+    await page.route('**/api/review/feed**', (route) =>
       route.fulfill({
         status: 200,
         contentType: 'application/json',
diff --git a/e2e/review.spec.ts b/e2e/review.spec.ts
index bf46c5c..a2ae0e6 100644
--- a/e2e/review.spec.ts
+++ b/e2e/review.spec.ts
@@ -2,31 +2,29 @@ import { test, expect } from '@playwright/test';
 
 const mockTasksData = {
   code: 200,
-  data: {
-    records: [
-      {
-        taskNum: 'T001',
-        taskName: '学习 Vue3',
-        reportCount: 3,
-        fragmentCount: 5,
-        effectiveTime: '2h 30m',
-      },
-      {
-        taskNum: 'T002',
-        taskName: '学习 TypeScript',
-        reportCount: 1,
-        fragmentCount: 2,
-        effectiveTime: '1h 15m',
-      },
-    ],
-  },
+  data: [
+    {
+      taskNum: 'T001',
+      taskName: '学习 Vue3',
+      reportCount: 3,
+      fragmentCount: 5,
+      effectiveTime: 9000,
+    },
+    {
+      taskNum: 'T002',
+      taskName: '学习 TypeScript',
+      reportCount: 1,
+      fragmentCount: 2,
+      effectiveTime: 4500,
+    },
+  ],
 };
-const mockTasksEmpty = { code: 200, data: { records: [] } };
+const mockTasksEmpty = { code: 200, data: [] };
 const mockFeed = { code: 200, data: [] };
 
 test.describe('Review page', () => {
   test.beforeEach(async ({ page }) => {
-    await page.route('**/api/tasks**', (route) =>
+    await page.route('**/api/review/tasks**', (route) =>
       route.fulfill({
         status: 200,
         contentType: 'application/json',
@@ -52,7 +50,7 @@ test.describe('Review page', () => {
   });
 
   test('shows empty state when no tasks', async ({ page }) => {
-    await page.route('**/api/tasks**', (route) =>
+    await page.route('**/api/review/tasks**', (route) =>
       route.fulfill({
         status: 200,
         contentType: 'application/json',
diff --git a/e2e/welcome.spec.ts b/e2e/welcome.spec.ts
index abb93e5..00de01a 100644
--- a/e2e/welcome.spec.ts
+++ b/e2e/welcome.spec.ts
@@ -2,7 +2,7 @@ import { test, expect } from '@playwright/test';
 
 test.describe('Welcome page', () => {
   test.beforeEach(async ({ page }) => {
-    await page.route('**/api/review/feed', (route) =>
+    await page.route('**/api/review/feed**', (route) =>
       route.fulfill({
         status: 200,
         contentType: 'application/json',
diff --git a/src/__tests__/api/review.spec.ts b/src/__tests__/api/review.spec.ts
index 516f6a2..7e7c661 100644
--- a/src/__tests__/api/review.spec.ts
+++ b/src/__tests__/api/review.spec.ts
@@ -5,12 +5,25 @@ vi.mock('@/utils/request', () => ({
     get: vi.fn(),
     post: vi.fn(),
     put: vi.fn(),
-    delete: vi.fn(),
+    del: vi.fn(),
   },
 }))
 
 import request from '@/utils/request'
-import { getReviewFeed, getReportDetail, getFragmentDetail, getTaskReview } from '@/api/review'
+import {
+  createReviewApplication,
+  deleteReviewApplication,
+  getFragmentDetail,
+  getReportDetail,
+  getReviewApplications,
+  getReviewFeed,
+  getReviewMindMap,
+  getReviewTaskStats,
+  getReviewTaskStatsByTask,
+  getTaskReview,
+  updateReviewApplication,
+  upsertReviewMindMap,
+} from '@/api/review'
 
 const mockedRequest = vi.mocked(request)
 
@@ -22,14 +35,32 @@ describe('review API', () => {
   it('getReviewFeed calls GET /review/feed with limit', async () => {
     mockedRequest.get.mockResolvedValue({ code: 200, data: [] })
     const result = await getReviewFeed(10)
-    expect(mockedRequest.get).toHaveBeenCalledWith('/review/feed', { limit: 10 })
+    expect(mockedRequest.get).toHaveBeenCalledWith('/review/feed', { limit: 10, mode: 'recent' })
     expect(result).toEqual({ code: 200, data: [] })
   })
 
-  it('getReviewFeed uses default limit of 30', async () => {
+  it('getReviewFeed uses default limit of 30 and recent mode', async () => {
     mockedRequest.get.mockResolvedValue({ code: 200, data: [] })
     await getReviewFeed()
-    expect(mockedRequest.get).toHaveBeenCalledWith('/review/feed', { limit: 30 })
+    expect(mockedRequest.get).toHaveBeenCalledWith('/review/feed', { limit: 30, mode: 'recent' })
+  })
+
+  it('getReviewFeed accepts random mode', async () => {
+    mockedRequest.get.mockResolvedValue({ code: 200, data: [] })
+    await getReviewFeed(50, 'random')
+    expect(mockedRequest.get).toHaveBeenCalledWith('/review/feed', { limit: 50, mode: 'random' })
+  })
+
+  it('getReviewTaskStats calls GET /review/tasks', async () => {
+    mockedRequest.get.mockResolvedValue({ code: 200, data: [] })
+    await getReviewTaskStats()
+    expect(mockedRequest.get).toHaveBeenCalledWith('/review/tasks')
+  })
+
+  it('getReviewTaskStatsByTask calls GET /review/tasks/:taskNum', async () => {
+    mockedRequest.get.mockResolvedValue({ code: 200, data: {} })
+    await getReviewTaskStatsByTask('T001')
+    expect(mockedRequest.get).toHaveBeenCalledWith('/review/tasks/T001')
   })
 
   it('getReportDetail calls GET /review/report/:id', async () => {
@@ -50,4 +81,49 @@ describe('review API', () => {
     await getTaskReview('T001')
     expect(mockedRequest.get).toHaveBeenCalledWith('/review/task/T001')
   })
+
+  it('review applications API calls expected endpoints', async () => {
+    mockedRequest.get.mockResolvedValue({ code: 200, data: [] })
+    mockedRequest.post.mockResolvedValue({ code: 200, data: { id: 1 } })
+    mockedRequest.put.mockResolvedValue({ code: 200, data: { id: 1 } })
+    mockedRequest.del.mockResolvedValue({ code: 200 })
+
+    await getReviewApplications('T001')
+    expect(mockedRequest.get).toHaveBeenCalledWith('/review/applications/T001')
+
+    await createReviewApplication({ taskNum: 'T001', title: 'Demo', status: 'TODO' })
+    expect(mockedRequest.post).toHaveBeenCalledWith('/review/applications', {
+      taskNum: 'T001',
+      title: 'Demo',
+      status: 'TODO',
+    })
+
+    await updateReviewApplication(1, { title: 'Demo 2', status: 'DOING' })
+    expect(mockedRequest.put).toHaveBeenCalledWith('/review/applications/1', {
+      title: 'Demo 2',
+      status: 'DOING',
+    })
+
+    await deleteReviewApplication(1)
+    expect(mockedRequest.del).toHaveBeenCalledWith('/review/applications/1')
+  })
+
+  it('review mind map API calls expected endpoints', async () => {
+    mockedRequest.get.mockResolvedValue({ code: 200, data: null })
+    mockedRequest.put.mockResolvedValue({ code: 200, data: { id: 1 } })
+
+    await getReviewMindMap('T001')
+    expect(mockedRequest.get).toHaveBeenCalledWith('/review/mind-map/T001')
+
+    await upsertReviewMindMap('T001', {
+      title: 'Map',
+      content: 'content',
+      contentFormat: 'TEXT',
+    })
+    expect(mockedRequest.put).toHaveBeenCalledWith('/review/mind-map/T001', {
+      title: 'Map',
+      content: 'content',
+      contentFormat: 'TEXT',
+    })
+  })
 })
diff --git a/src/api/review.ts b/src/api/review.ts
index c439965..923f162 100644
--- a/src/api/review.ts
+++ b/src/api/review.ts
@@ -10,8 +10,50 @@ export interface ReviewFeedItem {
   createdTime: string;
 }
 
-export const getReviewFeed = (limit: number = 30) => {
-  return request.get("/review/feed", { limit });
+export interface ReviewTaskStats {
+  taskNum: string;
+  taskName: string;
+  reportCount: number;
+  fragmentCount: number;
+  effectiveTime: number;
+  sessionCount: number;
+  todayEffectiveTime: number;
+  weekEffectiveTime: number;
+  avgEffectiveTime: number;
+  avgEffectivenessRatio: number;
+}
+
+export interface ReviewApplication {
+  id: number;
+  taskNum: string;
+  title: string;
+  description?: string;
+  resourceUrl?: string;
+  status: "TODO" | "DOING" | "DONE";
+  createdTime?: string;
+  lastModifiedTime?: string;
+}
+
+export interface ReviewMindMap {
+  id: number;
+  taskNum: string;
+  title: string;
+  content: string;
+  contentFormat: "TEXT" | "MERMAID" | "JSON";
+  createdTime?: string;
+  lastModifiedTime?: string;
+}
+
+export const getReviewFeed = (limit: number = 30, mode: "recent" | "random" = "recent") => {
+  return request.get("/review/feed", { limit, mode });
+};
+
+export const getReviewTaskStats = () => {
+  return request.get("/review/tasks");
+};
+
+export const getReviewTaskStatsByTask = (taskNum: string) => {
+  return request.get(`/review/tasks/${taskNum}`);
 };
 
 export const getReportDetail = (id: number) => {
@@ -25,3 +67,48 @@ export const getFragmentDetail = (id: number) => {
 export const getTaskReview = (taskNum: string) => {
   return request.get(`/review/task/${taskNum}`);
 };
+
+export const getReviewApplications = (taskNum: string) => {
+  return request.get(`/review/applications/${taskNum}`);
+};
+
+export const createReviewApplication = (payload: {
+  taskNum: string;
+  title: string;
+  description?: string;
+  resourceUrl?: string;
+  status?: ReviewApplication["status"];
+}) => {
+  return request.post("/review/applications", payload);
+};
+
+export const updateReviewApplication = (
+  id: number,
+  payload: {
+    title: string;
+    description?: string;
+    resourceUrl?: string;
+    status?: ReviewApplication["status"];
+  },
+) => {
+  return request.put(`/review/applications/${id}`, payload);
+};
+
+export const deleteReviewApplication = (id: number) => {
+  return request.del(`/review/applications/${id}`);
+};
+
+export const getReviewMindMap = (taskNum: string) => {
+  return request.get(`/review/mind-map/${taskNum}`);
+};
+
+export const upsertReviewMindMap = (
+  taskNum: string,
+  payload: {
+    title: string;
+    content: string;
+    contentFormat?: ReviewMindMap["contentFormat"];
+  },
+) => {
+  return request.put(`/review/mind-map/${taskNum}`, payload);
+};
diff --git a/src/components/Review.vue b/src/components/Review.vue
index a495feb..162e927 100644
--- a/src/components/Review.vue
+++ b/src/components/Review.vue
@@ -1,17 +1,19 @@
 <script setup lang="ts">
 import { computed, onMounted, ref } from "vue";
-import request from "@/utils/request";
+import { useRouter } from "vue-router";
+import { ElMessage } from "element-plus";
+import {
+  getReviewTaskStats,
+  getTaskReview,
+  type ReviewFeedItem,
+  type ReviewTaskStats,
+} from "@/api/review";
 
-interface ReviewTask {
-  taskNum: string;
-  taskName: string;
-  reportCount: number | string;
-  fragmentCount: number | string;
-  effectiveTime: number | string;
-}
+const router = useRouter();
 
 const loading = ref(false);
-const tasks = ref<ReviewTask[]>([]);
+const openingTaskNum = ref("");
+const tasks = ref<ReviewTaskStats[]>([]);
 
 const summary = computed(() => ({
   totalTasks: tasks.value.length,
@@ -31,19 +33,30 @@ const formatEffectiveTime = (seconds: number | string): string => {
 const loadTasks = async () => {
   loading.value = true;
   try {
-    const res = await request.get("/review/tasks");
-    tasks.value = (res?.data || []).map((item: any) => ({
-      taskNum: item.taskNum,
-      taskName: item.taskName,
-      reportCount: item.reportCount ?? 0,
-      fragmentCount: item.fragmentCount ?? 0,
-      effectiveTime: item.effectiveTime ?? 0,
-    }));
+    const res = await getReviewTaskStats();
+    tasks.value = res?.data || [];
   } finally {
     loading.value = false;
   }
 };
 
+const openTaskReview = async (row: ReviewTaskStats) => {
+  if (!row.taskNum) return;
+  openingTaskNum.value = row.taskNum;
+  try {
+    const res = await getTaskReview(row.taskNum);
+    const items: ReviewFeedItem[] = res?.data || [];
+    const first = items[0];
+    if (!first) {
+      ElMessage.info("该任务暂无可复习内容");
+      return;
+    }
+    router.push(`/review/detail/${first.sourceType.toLowerCase()}/${first.id}`);
+  } finally {
+    openingTaskNum.value = "";
+  }
+};
+
 onMounted(() => {
   loadTasks();
 });
@@ -72,7 +85,7 @@ onMounted(() => {
     </div>
 
     <article class="surface-card table-card">
-      <el-table v-loading="loading" :data="tasks" stripe>
+      <el-table v-loading="loading" :data="tasks" stripe @row-click="openTaskReview">
         <el-table-column prop="taskName" label="任务名" min-width="180" />
         <el-table-column prop="effectiveTime" label="累计有效学习时长" min-width="150">
           <template #default="{ row }">
@@ -81,6 +94,18 @@ onMounted(() => {
         </el-table-column>
         <el-table-column prop="reportCount" label="学习报告数" min-width="120" />
         <el-table-column prop="fragmentCount" label="学习残片数" min-width="120" />
+        <el-table-column label="操作" width="120">
+          <template #default="{ row }">
+            <el-button
+              text
+              type="success"
+              :loading="openingTaskNum === row.taskNum"
+              @click.stop="openTaskReview(row)"
+            >
+              查看记录
+            </el-button>
+          </template>
+        </el-table-column>
       </el-table>
     </article>
   </section>
@@ -125,6 +150,10 @@ onMounted(() => {
   padding: 10px;
 }
 
+.table-card :deep(.el-table__row) {
+  cursor: pointer;
+}
+
 @media (max-width: 900px) {
   .summary-grid {
     grid-template-columns: 1fr;
diff --git a/src/components/ReviewDetail.vue b/src/components/ReviewDetail.vue
index 96e3957..2e473e1 100644
--- a/src/components/ReviewDetail.vue
+++ b/src/components/ReviewDetail.vue
@@ -1,7 +1,20 @@
 <script setup lang="ts">
-import { computed, onMounted, ref } from "vue";
+import { computed, ref, watch } from "vue";
 import { useRoute, useRouter } from "vue-router";
-import { getReportDetail, getFragmentDetail, getTaskReview, type ReviewFeedItem } from "@/api/review";
+import {
+  createReviewApplication,
+  deleteReviewApplication,
+  getFragmentDetail,
+  getReportDetail,
+  getReviewApplications,
+  getReviewMindMap,
+  getTaskReview,
+  updateReviewApplication,
+  upsertReviewMindMap,
+  type ReviewApplication,
+  type ReviewFeedItem,
+  type ReviewMindMap,
+} from "@/api/review";
 import { getSessionDetail } from "@/api/studySessions";
 import { updateFragments } from "@/api/reportFragments";
 import { ElMessage } from "element-plus";
@@ -17,12 +30,37 @@ const content = ref("");
 const sourceTypeLabel = ref("");
 const taskNum = ref("");
 
-// 编辑状态
 const isEditing = ref(false);
 const editContent = ref("");
 const saving = ref(false);
 
-// 当前会话信息
+const applications = ref<ReviewApplication[]>([]);
+const applicationSaving = ref(false);
+const editingApplicationId = ref<number | null>(null);
+const applicationForm = ref<{
+  title: string;
+  description: string;
+  resourceUrl: string;
+  status: ReviewApplication["status"];
+}>({
+  title: "",
+  description: "",
+  resourceUrl: "",
+  status: "TODO",
+});
+
+const mindMap = ref<ReviewMindMap | null>(null);
+const mindMapSaving = ref(false);
+const mindMapForm = ref<{
+  title: string;
+  content: string;
+  contentFormat: ReviewMindMap["contentFormat"];
+}>({
+  title: "任务思维导图",
+  content: "",
+  contentFormat: "TEXT",
+});
+
 const sessionInfo = ref<{
   taskName: string;
   sessionNum: string;
@@ -32,7 +70,6 @@ const sessionInfo = ref<{
   startTime?: string;
 } | null>(null);
 
-// 该任务下的所有学习记录（按 session 分组）
 const taskSessions = ref<{
   sessionNum: string;
   startTime: string;
@@ -40,7 +77,13 @@ const taskSessions = ref<{
   fragments: ReviewFeedItem[];
 }[]>([]);
 
-const formatDuration = (seconds: number): string => {
+const statusText: Record<ReviewApplication["status"], string> = {
+  TODO: "待应用",
+  DOING: "进行中",
+  DONE: "已完成",
+};
+
+const formatDuration = (seconds?: number): string => {
   if (seconds == null) return "-";
   const h = Math.floor(seconds / 3600);
   const m = Math.floor((seconds % 3600) / 60);
@@ -50,47 +93,26 @@ const formatDuration = (seconds: number): string => {
   return `${s}秒`;
 };
 
-const loadDetail = async () => {
-  loading.value = true;
-  try {
-    let res;
-    if (contentType.value === "report") {
-      res = await getReportDetail(contentId.value);
-      sourceTypeLabel.value = "学习报告";
-    } else {
-      res = await getFragmentDetail(contentId.value);
-      sourceTypeLabel.value = "学习残片";
-    }
-    const data = res?.data;
-    content.value = data?.content || "";
-
-    const sessionNum = data?.sessionNum;
-    if (sessionNum) {
-      try {
-        const sessionRes = await getSessionDetail(sessionNum);
-        const info = sessionRes?.data;
-        sessionInfo.value = info || null;
-        taskNum.value = info?.taskNum || "";
-
-        // 加载该任务下的所有报告和残片
-        if (info?.taskNum) {
-          await loadTaskHistory(info.taskNum, sessionNum);
-        }
-      } catch {
-        // 非关键数据
-      }
-    }
-  } finally {
-    loading.value = false;
-  }
+const formatRatio = (ratio?: number): string => {
+  if (ratio == null) return "-";
+  return `${(ratio * 100).toFixed(1)}%`;
 };
 
-const loadTaskHistory = async (tn: string, currentSessionNum: string) => {
+const resetApplicationForm = () => {
+  editingApplicationId.value = null;
+  applicationForm.value = {
+    title: "",
+    description: "",
+    resourceUrl: "",
+    status: "TODO",
+  };
+};
+
+const loadTaskHistory = async (tn: string) => {
   try {
     const res = await getTaskReview(tn);
     const items: ReviewFeedItem[] = res?.data || [];
 
-    // 按 sessionNum 分组
     const map = new Map<string, { report: ReviewFeedItem | null; fragments: ReviewFeedItem[]; startTime: string }>();
     for (const item of items) {
       const entry = map.get(item.sessionNum) || { report: null, fragments: [], startTime: item.createdTime };
@@ -117,6 +139,70 @@ const loadTaskHistory = async (tn: string, currentSessionNum: string) => {
   }
 };
 
+const loadReviewExtensions = async (tn: string) => {
+  const applicationsRes = await getReviewApplications(tn).catch(() => null);
+  applications.value = applicationsRes?.data || [];
+
+  const mindMapRes = await getReviewMindMap(tn).catch(() => null);
+  const loadedMindMap: ReviewMindMap | null = mindMapRes?.data || null;
+  mindMap.value = loadedMindMap;
+  mindMapForm.value = loadedMindMap
+    ? {
+        title: loadedMindMap.title || "任务思维导图",
+        content: loadedMindMap.content || "",
+        contentFormat: loadedMindMap.contentFormat || "TEXT",
+      }
+    : {
+        title: `${sessionInfo.value?.taskName || "任务"}思维导图`,
+        content: "",
+        contentFormat: "TEXT",
+      };
+};
+
+const loadDetail = async () => {
+  loading.value = true;
+  isEditing.value = false;
+  editContent.value = "";
+  content.value = "";
+  sourceTypeLabel.value = "";
+  taskNum.value = "";
+  sessionInfo.value = null;
+  taskSessions.value = [];
+  applications.value = [];
+  mindMap.value = null;
+  try {
+    let res;
+    if (contentType.value === "report") {
+      res = await getReportDetail(contentId.value);
+      sourceTypeLabel.value = "学习报告";
+    } else {
+      res = await getFragmentDetail(contentId.value);
+      sourceTypeLabel.value = "学习残片";
+    }
+    const data = res?.data;
+    content.value = data?.content || "";
+
+    const sessionNum = data?.sessionNum;
+    if (sessionNum) {
+      try {
+        const sessionRes = await getSessionDetail(sessionNum);
+        const info = sessionRes?.data;
+        sessionInfo.value = info || null;
+        taskNum.value = info?.taskNum || "";
+
+        if (info?.taskNum) {
+          await loadTaskHistory(info.taskNum);
+          await loadReviewExtensions(info.taskNum);
+        }
+      } catch {
+        // 非关键数据
+      }
+    }
+  } finally {
+    loading.value = false;
+  }
+};
+
 const goToDetail = (type: string, id: number) => {
   router.push(`/review/detail/${type}/${id}`);
 };
@@ -146,6 +232,9 @@ const saveEdit = async () => {
     if (res?.code === 200) {
       content.value = editContent.value;
       isEditing.value = false;
+      if (taskNum.value) {
+        await loadTaskHistory(taskNum.value);
+      }
       ElMessage.success("保存成功");
     } else {
       ElMessage.error(res?.message || "保存失败");
@@ -157,9 +246,84 @@ const saveEdit = async () => {
   }
 };
 
-onMounted(() => {
-  loadDetail();
-});
+const saveApplication = async () => {
+  if (!taskNum.value) {
+    ElMessage.warning("未找到关联任务");
+    return;
+  }
+  if (!applicationForm.value.title.trim()) {
+    ElMessage.warning("应用项目标题不能为空");
+    return;
+  }
+  applicationSaving.value = true;
+  try {
+    const payload = {
+      title: applicationForm.value.title,
+      description: applicationForm.value.description,
+      resourceUrl: applicationForm.value.resourceUrl,
+      status: applicationForm.value.status,
+    };
+    if (editingApplicationId.value) {
+      await updateReviewApplication(editingApplicationId.value, payload);
+      ElMessage.success("应用场景已更新");
+    } else {
+      await createReviewApplication({ taskNum: taskNum.value, ...payload });
+      ElMessage.success("应用场景已添加");
+    }
+    resetApplicationForm();
+    await loadReviewExtensions(taskNum.value);
+  } finally {
+    applicationSaving.value = false;
+  }
+};
+
+const editApplication = (item: ReviewApplication) => {
+  editingApplicationId.value = item.id;
+  applicationForm.value = {
+    title: item.title || "",
+    description: item.description || "",
+    resourceUrl: item.resourceUrl || "",
+    status: item.status || "TODO",
+  };
+};
+
+const removeApplication = async (item: ReviewApplication) => {
+  await deleteReviewApplication(item.id);
+  ElMessage.success("应用场景已删除");
+  if (editingApplicationId.value === item.id) {
+    resetApplicationForm();
+  }
+  if (taskNum.value) {
+    await loadReviewExtensions(taskNum.value);
+  }
+};
+
+const saveMindMap = async () => {
+  if (!taskNum.value) {
+    ElMessage.warning("未找到关联任务");
+    return;
+  }
+  if (!mindMapForm.value.title.trim() || !mindMapForm.value.content.trim()) {
+    ElMessage.warning("思维导图标题和内容不能为空");
+    return;
+  }
+  mindMapSaving.value = true;
+  try {
+    const res = await upsertReviewMindMap(taskNum.value, mindMapForm.value);
+    mindMap.value = res?.data || null;
+    ElMessage.success("思维导图已保存");
+  } finally {
+    mindMapSaving.value = false;
+  }
+};
+
+watch(
+  () => [contentType.value, contentId.value],
+  () => {
+    loadDetail();
+  },
+  { immediate: true },
+);
 </script>
 
 <template>
@@ -189,6 +353,11 @@ onMounted(() => {
           编辑
         </el-button>
       </div>
+      <div v-if="sessionInfo" class="session-stats">
+        <span>实际：{{ formatDuration(sessionInfo.actualTime) }}</span>
+        <span>有效：{{ formatDuration(sessionInfo.effectiveTime) }}</span>
+        <span>效率：{{ formatRatio(sessionInfo.effectivenessRatio) }}</span>
+      </div>
 
       <!-- 编辑模式 -->
       <div v-if="isEditing" class="edit-area">
@@ -214,6 +383,82 @@ onMounted(() => {
       </template>
     </article>
 
+    <section class="review-extension-grid" v-if="taskNum">
+      <article class="surface-card extension-card">
+        <div class="extension-head">
+          <h3>应用场景</h3>
+          <el-tag size="small" type="success" effect="plain">{{ applications.length }}</el-tag>
+        </div>
+
+        <div class="application-list" v-if="applications.length > 0">
+          <div class="application-item" v-for="item in applications" :key="item.id">
+            <div class="application-main">
+              <strong>{{ item.title }}</strong>
+              <el-tag size="small" effect="plain">{{ statusText[item.status] || item.status }}</el-tag>
+            </div>
+            <p v-if="item.description">{{ item.description }}</p>
+            <el-link v-if="item.resourceUrl" :href="item.resourceUrl" target="_blank" type="primary">
+              {{ item.resourceUrl }}
+            </el-link>
+            <div class="item-actions">
+              <el-button text type="primary" size="small" @click="editApplication(item)">编辑</el-button>
+              <el-button text type="danger" size="small" @click="removeApplication(item)">删除</el-button>
+            </div>
+          </div>
+        </div>
+        <el-empty v-else description="暂无应用场景" :image-size="64" />
+
+        <div class="application-form">
+          <el-input v-model="applicationForm.title" placeholder="应用项目" />
+          <el-input
+            v-model="applicationForm.description"
+            type="textarea"
+            :rows="3"
+            placeholder="应用描述"
+          />
+          <el-input v-model="applicationForm.resourceUrl" placeholder="相关链接" />
+          <div class="form-row">
+            <el-select v-model="applicationForm.status" placeholder="状态">
+              <el-option label="待应用" value="TODO" />
+              <el-option label="进行中" value="DOING" />
+              <el-option label="已完成" value="DONE" />
+            </el-select>
+            <el-button type="success" :loading="applicationSaving" @click="saveApplication">
+              {{ editingApplicationId ? "更新" : "添加" }}
+            </el-button>
+            <el-button v-if="editingApplicationId" @click="resetApplicationForm">取消</el-button>
+          </div>
+        </div>
+      </article>
+
+      <article class="surface-card extension-card">
+        <div class="extension-head">
+          <h3>思维导图</h3>
+          <el-tag size="small" type="warning" effect="plain">{{ mindMap?.contentFormat || mindMapForm.contentFormat }}</el-tag>
+        </div>
+
+        <div class="mind-map-form">
+          <div class="form-row">
+            <el-input v-model="mindMapForm.title" placeholder="标题" />
+            <el-select v-model="mindMapForm.contentFormat" placeholder="格式">
+              <el-option label="文本" value="TEXT" />
+              <el-option label="Mermaid" value="MERMAID" />
+              <el-option label="JSON" value="JSON" />
+            </el-select>
+          </div>
+          <el-input
+            v-model="mindMapForm.content"
+            type="textarea"
+            :rows="12"
+            placeholder="思维导图内容"
+          />
+          <div class="edit-actions">
+            <el-button type="success" :loading="mindMapSaving" @click="saveMindMap">保存</el-button>
+          </div>
+        </div>
+      </article>
+    </section>
+
     <!-- 该任务下的所有学习记录 -->
     <article class="surface-card history-card" v-if="taskSessions.length > 0">
       <h3>该任务下的所有学习记录</h3>
@@ -280,6 +525,15 @@ onMounted(() => {
   flex-wrap: wrap;
 }
 
+.session-stats {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px 14px;
+  margin: -6px 0 16px;
+  color: var(--text-secondary);
+  font-size: 13px;
+}
+
 .meta-task-name {
   font-weight: 600;
   color: var(--green-800);
@@ -310,6 +564,84 @@ onMounted(() => {
   padding: 40px 0;
 }
 
+.review-extension-grid {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
+  gap: 14px;
+}
+
+.extension-card {
+  padding: 20px 22px;
+}
+
+.extension-head {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+  margin-bottom: 14px;
+}
+
+.extension-head h3 {
+  margin: 0;
+  color: var(--green-900);
+  font-size: 16px;
+}
+
+.application-list {
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+  margin-bottom: 14px;
+}
+
+.application-item {
+  padding: 12px;
+  border: 1px solid var(--border-soft);
+  border-radius: 8px;
+  background: #fbfefc;
+}
+
+.application-main {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 10px;
+}
+
+.application-main strong {
+  min-width: 0;
+  color: var(--text-primary);
+  word-break: break-word;
+}
+
+.application-item p {
+  margin: 8px 0 0;
+  color: var(--text-secondary);
+  font-size: 13px;
+  word-break: break-word;
+}
+
+.item-actions {
+  display: flex;
+  justify-content: flex-end;
+  gap: 4px;
+  margin-top: 8px;
+}
+
+.application-form,
+.mind-map-form {
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+}
+
+.form-row {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+}
+
 /* 历史记录卡片 */
 .history-card {
   padding: 20px 22px;
@@ -420,4 +752,15 @@ onMounted(() => {
   margin-top: 12px;
 }
 
-</style>
\ No newline at end of file
+@media (max-width: 900px) {
+  .review-extension-grid {
+    grid-template-columns: 1fr;
+  }
+
+  .form-row {
+    flex-direction: column;
+    align-items: stretch;
+  }
+}
+
+</style>
diff --git a/src/components/Study.vue b/src/components/Study.vue
index 1f67765..c83a656 100644
--- a/src/components/Study.vue
+++ b/src/components/Study.vue
@@ -3,6 +3,7 @@ import { computed, onMounted, ref, watch } from "vue";
 import request from "@/utils/request";
 import router from "@/router";
 import { ElMessage } from "element-plus";
+import { getReviewTaskStatsByTask } from "@/api/review";
 
 interface TaskItem {
   title: string;
@@ -44,7 +45,7 @@ async function loadTaskStats(taskNum: string) {
   if (!task || task.statsLoaded) return;
 
   try {
-    const res = await request.get(`/review/tasks/${taskNum}`);
+    const res = await getReviewTaskStatsByTask(taskNum);
     if (res?.data) {
       task.reportCount = res.data.reportCount ?? 0;
       task.fragmentCount = res.data.fragmentCount ?? 0;
diff --git a/src/components/Welcome.vue b/src/components/Welcome.vue
index bfb4cd5..391351d 100644
--- a/src/components/Welcome.vue
+++ b/src/components/Welcome.vue
@@ -63,7 +63,7 @@ const duplicatedGroups = computed(() => [...sessionGroups.value, ...sessionGroup
 
 const loadReviewFeed = async () => {
   try {
-    const res = await getReviewFeed(100);
+    const res = await getReviewFeed(100, "random");
     reviewItems.value = res?.data || [];
   } catch {
     // feed 加载失败不影响页面主体功能