diff --git a/README.md b/README.md
index 556ded3..11ff605 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 ## 安装和更新
 
 1. 在 Chrome / Edge 中安装并启用油猴（Tampermonkey）。
-2. 新建脚本，将 `谊安学题库导出.user.js` 的全部内容粘贴进去，保存。升级时替换原脚本全文，不要同时启用新旧两份脚本。
+2. 新建脚本，将 `谊安学助手 2.0.user.js` 的全部内容粘贴进去，保存。脚本显示名称为“谊安学助手 2.0”。升级时替换原脚本全文，不要同时启用新旧两份脚本。
 3. 刷新网页，点击右下角“题库助手”入口展开面板。
 4. 选择“主操 / 班长 / 副操”，点击“导入题库”，选择 ZIP、CSV 或 JSON 文件。
 
@@ -34,7 +34,9 @@
 
 ## 网页题目导出
 
-进入兼容练习页后，默认等待题目和参考答案加载完整，再自动下载 CSV；可在面板关闭自动导出，或点击 CSV / JSON / TXT 按钮手动导出。导出直接读取网页中的参考答案，包括隐藏答案，不用导入题库补全缺失答案。
+“导出题库”是独立的折叠开关，每次刷新默认关闭，升级前的自动导出设置也不会使它自动开启。关闭时导出区收起，自动下载和手动导出均禁用。
+
+开启“导出题库”后展开 CSV / JSON / TXT 按钮。在兼容练习页中，题目和参考答案加载完整后会自动下载一次 CSV，也可点击格式按钮手动导出。再次关闭后停止后续导出；主动重新开启可再次下载当前题库。导出直接读取网页中的参考答案，包括隐藏答案，不用导入题库补全缺失答案。
 
 - CSV 使用 UTF-8 BOM，可用 Excel 打开；JSON 保留结构化选项和图片地址；TXT 便于阅读。
 - 缺题或缺答案时不自动下载；手动导出会标记不完整。没有答题卡总数时，只能核对当前页面内容。
diff --git a/assistant-panel.js b/assistant-panel.js
index eea1ec8..23a0a28 100644
--- a/assistant-panel.js
+++ b/assistant-panel.js
@@ -21,7 +21,7 @@
     const state = {
       autoAnswer: false, allowCopy: true, role: '', course: '', courses: [],
       bankTotal: 0, roleCounts: {}, storageMode: 'userscript', pageStatus: '等待识别练习页面',
-      canAnswer: false, canExport: false, metrics: {}, autoExport: true, expanded: false, loading: false
+      canAnswer: false, canExport: false, metrics: {}, exportEnabled: false, expanded: false, loading: false
     };
     let destroyed = false;
     let selectionText = '';
@@ -43,7 +43,7 @@
     visibilityStyle.textContent = '[hidden]{display:none!important}';
     root.appendChild(visibilityStyle);
     const panel = el(doc, 'section', 'panel collapsed');
-    panel.setAttribute('aria-label', '谊安学题库助手');
+    panel.setAttribute('aria-label', '谊安学助手 2.0');
     const header = el(doc, 'div', 'header');
     const brand = el(doc, 'span', 'brand', '题库助手');
     const expand = el(doc, 'button', 'toggle', '展开');
@@ -76,7 +76,7 @@
     brand.addEventListener('click', togglePanel);
 
     const switches = el(doc, 'div', 'switches');
-    function makeSwitch(labelText, callback) {
+    function makeSwitch(labelText, callback, container) {
       const label = el(doc, 'label', 'switch-row');
       const text = el(doc, 'span', '', labelText);
       const input = el(doc, 'input', 'switch');
@@ -84,7 +84,7 @@
       input.setAttribute('role', 'switch');
       input.setAttribute('aria-label', labelText);
       label.append(text, input);
-      switches.appendChild(label);
+      (container || switches).appendChild(label);
       input.addEventListener('change', callback);
       return { input: input, label: label };
     }
@@ -227,22 +227,35 @@
     const unprocessedList = el(doc, 'div', 'unprocessed-list');
     unprocessed.append(unprocessedSummary, unprocessedList);
     unprocessed.hidden = true;
+    pageSection.append(pageStatus, metrics, unprocessed);
+    body.appendChild(pageSection);
+
+    const exportSection = el(doc, 'section', 'page-section export-section');
+    exportSection.setAttribute('aria-label', '题库导出设置');
+    const exportSwitch = makeSwitch('导出题库', function () {
+      state.exportEnabled = exportSwitch.input.checked;
+      refresh();
+      invoke('onExportEnabledChange', state.exportEnabled);
+    }, exportSection);
+    const exportContent = el(doc, 'div', 'export-content');
+    exportContent.id = 'yian-export-content';
+    exportContent.hidden = true;
+    exportSwitch.input.setAttribute('aria-controls', exportContent.id);
+    exportContent.appendChild(el(doc, 'p', 'hint', '开启后，题目和答案完整时自动导出 CSV；也可点击下方按钮重新导出。关闭后停止后续导出。'));
     const exportRow = el(doc, 'div', 'exports');
     const exportButtons = [];
     ['csv', 'json', 'txt'].forEach(function (format) {
       const button = el(doc, 'button', '', '导出 ' + format.toUpperCase());
       button.type = 'button';
-      button.addEventListener('click', function () { invoke('onExport', format); });
+      button.addEventListener('click', function () {
+        if (state.exportEnabled && state.canExport) invoke('onExport', format);
+      });
       exportRow.appendChild(button);
       exportButtons.push(button);
     });
-    const autoExportLabel = el(doc, 'label', 'auto-export');
-    const autoExportInput = el(doc, 'input');
-    autoExportInput.type = 'checkbox';
-    autoExportLabel.append(autoExportInput, el(doc, 'span', '', '进入练习时自动导出 CSV'));
-    autoExportInput.addEventListener('change', function () { state.autoExport = autoExportInput.checked; invoke('onAutoExportChange', state.autoExport); });
-    pageSection.append(pageStatus, metrics, unprocessed, exportRow, autoExportLabel);
-    body.appendChild(pageSection);
+    exportContent.appendChild(exportRow);
+    exportSection.appendChild(exportContent);
+    body.appendChild(exportSection);
 
     function autoUnavailableReason() {
       if (!state.role) return '请选择岗位后再开启自动选择。';
@@ -260,7 +273,7 @@
       if (destroyed) return;
       panel.classList.toggle('collapsed', !state.expanded);
       body.hidden = !state.expanded;
-      brand.textContent = state.expanded ? '谊安学助手' : '题库助手';
+      brand.textContent = state.expanded ? '谊安学助手 2.0' : '题库助手';
       expand.textContent = state.expanded ? '收起' : '展开';
       expand.setAttribute('aria-label', state.expanded ? '收起题库助手' : '展开题库助手');
       expand.setAttribute('aria-expanded', String(Boolean(state.expanded)));
@@ -310,8 +323,9 @@
       notProcessed.forEach(function (item) {
         unprocessedList.appendChild(el(doc, 'div', '', '第 ' + item.number + ' 题 · ' + (metricLabels[item.status] || '已跳过') + '：' + (item.reason || '请人工核对。')));
       });
-      exportButtons.forEach(function (button) { button.disabled = !state.canExport; });
-      autoExportInput.checked = Boolean(state.autoExport);
+      exportSwitch.input.checked = Boolean(state.exportEnabled);
+      exportContent.hidden = !state.exportEnabled;
+      exportButtons.forEach(function (button) { button.disabled = !state.exportEnabled || !state.canExport; });
       previous.disabled = currentOffset === 0 || Boolean(state.loading);
       next.disabled = currentOffset + PAGE_SIZE >= resultTotal || Boolean(state.loading);
     }
diff --git a/build-userscript.mjs b/build-userscript.mjs
index f9ece6d..7b09f51 100644
--- a/build-userscript.mjs
+++ b/build-userscript.mjs
@@ -1,9 +1,9 @@
 import { readFileSync, writeFileSync } from 'node:fs';
 
 const metadata = `// ==UserScript==
-// @name         谊安学练习题库自动导出
+// @name         谊安学助手 2.0
 // @namespace    yianxue-question-bank
-// @version      2.0.0
+// @version      2.0.1
 // @description  不绑定网址的题库助手：岗位题库搜索、允许复制、练习自动选择与导出。
 // @match        *://*/*
 // @match        file:///*
@@ -25,5 +25,5 @@ const zipWrapper = '(function () { const module = { exports: {} }; const exports
 const modules = ['question-bank-core.js', 'bank-store.js', 'answer-matcher.js',
   'copy-controller.js', 'assistant-panel.js', 'answer-runner.js', 'practice-exporter.js'];
 const source = modules.map(name => readFileSync(new URL('./' + name, import.meta.url), 'utf8')).join('\n');
-writeFileSync(new URL('./谊安学题库导出.user.js', import.meta.url), metadata + '\n' + notices + zipWrapper + source, 'utf8');
-console.log('已生成 谊安学题库导出.user.js');
+writeFileSync(new URL('./谊安学助手 2.0.user.js', import.meta.url), metadata + '\n' + notices + zipWrapper + source, 'utf8');
+console.log('已生成 谊安学助手 2.0.user.js');
diff --git a/package.json b/package.json
index 0750d09..63314e7 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "yianxue-question-bank-exporter",
-  "version": "2.0.0",
+  "version": "2.0.1",
   "private": true,
   "description": "不绑定网址的谊安学题库助手：岗位搜索、允许复制和练习自动选择",
   "scripts": {
diff --git a/practice-exporter.js b/practice-exporter.js
index 7a79eda..b69bbb6 100644
--- a/practice-exporter.js
+++ b/practice-exporter.js
@@ -4,7 +4,7 @@
   const core = window.QuestionBankCore;
   const store = window.YianBankStore;
   const matcher = window.YianAnswerMatcher;
-  const config = { autoAnswer: false, allowCopy: true, autoExport: true, role: '', course: '' };
+  const config = { autoAnswer: false, allowCopy: true, exportEnabled: false, role: '', course: '' };
   let snapshot = { records: [], counts: {}, total: 0, revision: '', storage: 'origin' };
   let loading = true, disposed = false, page = null, previous = null;
   let searchQuery = '', runKey = '', debounceTimer;
@@ -61,7 +61,7 @@
   }
   function refreshPanel(extra) {
     panel.setState(Object.assign({ autoAnswer: config.autoAnswer, allowCopy: config.allowCopy,
-      autoExport: config.autoExport, role: config.role, course: config.course, courses: courses(),
+      exportEnabled: config.exportEnabled, role: config.role, course: config.course, courses: courses(),
       bankTotal: snapshot.total, roleCounts: snapshot.counts, storageMode: snapshot.storage, loading, metrics }, extra || {}));
   }
   function performSearch(query = searchQuery, options = {}) {
@@ -106,6 +106,7 @@
     } finally { loading = false; refreshPanel(); performSearch(searchQuery, { quiet: true }); tick(); }
   }
   function exportCurrent(format = 'csv') {
+    if (!config.exportEnabled) throw new Error('请先开启“导出题库”开关');
     const route = routeInfo();
     if (!route.practice) throw new Error('请先进入支持的练习页面');
     const bank = core.extract(document, route.sourceUrl);
@@ -115,6 +116,13 @@
       + '，' + bank.total + ' 题、' + bank.answered + ' 个答案。若没有文件，请点击导出按钮。', bank.complete ? 'success' : 'warning');
     return bank;
   }
+  function setExportEnabled(enabled) {
+    const opening = !!enabled && !config.exportEnabled;
+    config.exportEnabled = !!enabled;
+    // 用户主动重新开启可再次下载；同一开启期间只自动导出一次相同题库。
+    if (opening) exported.clear();
+    refreshPanel(); tick(); return config.exportEnabled;
+  }
   const panel = window.YianAssistantPanel.create({
     onAutoChange: setAutoAnswer, onCopyChange: setCopy,
     onRoleChange: role => { setRole(role).catch(error => panel.setNotice(error.message, 'error')); },
@@ -122,7 +130,7 @@
     onImport: files => { importFiles(files).catch(() => {}); }, onSearch: performSearch,
     onSelectionSearch: text => performSearch(text),
     onExport: format => { try { exportCurrent(format); } catch (error) { panel.setNotice(error.message, 'error'); } },
-    onAutoExportChange: enabled => { config.autoExport = !!enabled; saveSetting('autoExport', config.autoExport); tick(); }
+    onExportEnabledChange: setExportEnabled
   });
 
   function tick() {
@@ -160,11 +168,11 @@
     refreshPanel({ pageStatus: status, canExport: route.practice && !!bank.total,
       canAnswer: route.practice && !route.local && page.ready && !loading && !!config.role && !!snapshot.counts[config.role] });
     if (!route.practice || !page.ready || loading) { if (runner.running) runner.stop('等待兼容练习页面准备完成'); return; }
-    if (config.autoExport && bank.complete) {
+    if (config.exportEnabled && bank.complete) {
       const key = route.key + '|' + signature;
       if (!exported.has(key)) {
         try { exportCurrent('csv'); exported.add(key); }
-        catch (error) { config.autoExport = false; refreshPanel(); panel.setNotice('自动下载失败：' + error.message, 'error'); }
+        catch (error) { config.exportEnabled = false; refreshPanel(); panel.setNotice('自动下载失败：' + error.message, 'error'); }
       }
     }
     const nextRunKey = route.key + '|' + signature + '|' + config.role + '|' + snapshot.revision;
@@ -188,13 +196,13 @@
   }
   const ready = (async () => {
     try {
-      const values = await Promise.all([store.load(), store.getSetting('role', ''), store.getSetting('allowCopy', true), store.getSetting('autoExport', true)]);
+      const values = await Promise.all([store.load(), store.getSetting('role', ''), store.getSetting('allowCopy', true)]);
       snapshot = values[0]; config.role = store.roles.includes(values[1]) ? values[1] : '';
-      config.allowCopy = values[2] !== false; config.autoExport = values[3] !== false;
+      config.allowCopy = values[2] !== false;
     } catch (error) { panel.setNotice('题库读取失败：' + error.message + '。可重新导入题库。', 'error'); }
     loading = false; copy.setEnabled(config.allowCopy); refreshPanel(); tick(); return snapshot;
   })();
-  const api = Object.freeze({ ready, importFiles, setRole, setAutoAnswer, setCopy, search: performSearch, getContext,
+  const api = Object.freeze({ ready, importFiles, setRole, setAutoAnswer, setCopy, setExportEnabled, search: performSearch, getContext,
     getSnapshot: () => snapshot, getState: () => ({ ...config, metrics, pageReady: !!page && page.ready }),
     exportCurrent, collectCurrent: () => core.extract(document, routeInfo().sourceUrl), stop: dispose });
   window.YianAssistant = api; window.YianQuestionBankExporter = api;
diff --git a/tests/assistant.cjs b/tests/assistant.cjs
index 0755b8e..d4bc885 100644
--- a/tests/assistant.cjs
+++ b/tests/assistant.cjs
@@ -6,9 +6,10 @@ const os = require('node:os');
 const http = require('node:http');
 const { chromium } = require('playwright');
 const workspace = path.resolve(__dirname, '..');
-const script = fs.readFileSync(path.join(workspace, '谊安学题库导出.user.js'), 'utf8');
+const script = fs.readFileSync(path.join(workspace, '谊安学助手 2.0.user.js'), 'utf8');
 assert(script.includes('// @match        *://*/*'));
 assert(!/\/\/ @match\s+https?:\/\/10\./.test(script));
+assert(script.includes('// @name         谊安学助手 2.0'));
 const qaDir = process.env.YIAN_QA_DIR || path.join(os.tmpdir(), 'yianxue-assistant-qa');
 fs.mkdirSync(qaDir, { recursive: true });
 
@@ -48,7 +49,7 @@ function documentHTML(practice) {
 }
 
 (async () => {
-  const memory = new Map([['yianxue.assistant.setting.v2.autoExport', false]]);
+  const memory = new Map([['yianxue.assistant.setting.v2.autoExport', true], ['yianxue.assistant.setting.v2.exportEnabled', true]]);
   let clipboard = '';
   const server = http.createServer((req, res) => {
     res.writeHead(200, { 'Content-Type': 'text/html;charset=utf-8' });
@@ -76,6 +77,8 @@ function documentHTML(practice) {
     assert.equal(page.url(), startURL); assert.equal(await page.title(), '普通网页验证');
     assert(await page.getByRole('heading', { name: '任意网址的题库搜索' }).isVisible());
     await page.getByRole('button', { name: '展开题库助手' }).click();
+    assert(await page.locator('#yian-question-assistant .brand').textContent() === '谊安学助手 2.0');
+    assert.equal(await page.getByRole('switch', { name: '导出题库', exact: true }).isChecked(), false);
     assert(await page.getByRole('switch', { name: '自动选择答案' }).isDisabled());
     assert.equal(await page.evaluate(() => typeof window.GM_getValue), 'undefined');
     console.log('PASS 任意路径显示搜索面板，非练习页禁止自动选择，沙箱API兼容');
@@ -134,6 +137,7 @@ function documentHTML(practice) {
     const secondURL = `http://localhost:${port}/different/application/route?flag=exercise`;
     await second.goto(secondURL); await second.addScriptTag({ content: sandboxScript }); await second.evaluate(() => YianAssistant.ready);
     await second.waitForFunction(() => YianAssistant.getState().pageReady);
+    assert.equal(await second.getByRole('switch', { name: '导出题库', exact: true }).isChecked(), false, '旧版导出偏好不能开启新版开关');
     assert.equal(await second.evaluate(() => YianAssistant.getSnapshot().total), input.total);
     assert.equal(await second.evaluate(() => YianAssistant.getState().role), '主操');
     assert.equal(await second.getByRole('switch', { name: '自动选择答案' }).isChecked(), false);
diff --git a/tests/verify.cjs b/tests/verify.cjs
index 8f94f34..135518d 100644
--- a/tests/verify.cjs
+++ b/tests/verify.cjs
@@ -8,7 +8,7 @@ const { chromium } = require('playwright');
 
 const root = path.resolve(__dirname, '..');
 const coreSource = fs.readFileSync(path.join(root, 'question-bank-core.js'), 'utf8');
-const scriptSource = fs.readFileSync(path.join(root, '谊安学题库导出.user.js'), 'utf8');
+const scriptSource = fs.readFileSync(path.join(root, '谊安学助手 2.0.user.js'), 'utf8');
 const qaDir = process.env.YIAN_QA_DIR || path.join(os.tmpdir(), 'yianxue-export-qa');
 fs.mkdirSync(qaDir, { recursive: true });
 const samplePath = path.join(root, '网页样本', '考试答案', '谊安学.html');
@@ -68,9 +68,21 @@ function parseCSV(text) {
     const practiceURL = title => origin + '/clientcn/exam/' + encodeURIComponent(title) + '/questions?title=' + encodeURIComponent(title) + '&flag=exercise';
     await page.goto(practiceURL('模拟练习'));
     await page.evaluate(() => { window.answerClicks = 0; });
-    const firstDownload = page.waitForEvent('download');
     await page.addScriptTag({ content: scriptSource });
+    await page.evaluate(() => YianAssistant.ready);
+    await page.waitForFunction(() => YianAssistant.getState().pageReady);
+    await page.waitForTimeout(800);
+    assert.equal(downloads.length, 0, '导出开关默认关闭，不应自动下载');
+    assert.equal(await page.getByRole('switch', { name: '导出题库', exact: true }).isChecked(), false);
+    assert(await page.getByRole('button', { name: '导出 CSV', exact: true, includeHidden: true }).isHidden());
+    const blockedMessage = await page.evaluate(() => {
+      try { YianAssistant.exportCurrent('csv'); return ''; } catch (error) { return error.message; }
+    });
+    assert(blockedMessage.includes('开关'), '开关关闭时导出入口必须拒绝手动下载');
+    const firstDownload = page.waitForEvent('download');
+    await page.getByRole('switch', { name: '导出题库', exact: true }).check();
     const downloaded = await firstDownload;
+    assert(await page.getByRole('button', { name: '导出 CSV', exact: true }).isVisible());
     await downloaded.saveAs(path.join(qaDir, 'synthetic.csv'));
     const bank = await page.evaluate(() => QuestionBankCore.extract(document));
     assert.equal(bank.total, 3); assert.equal(bank.answered, 3); assert.equal(bank.complete, true);
@@ -140,6 +152,26 @@ function parseCSV(text) {
     assert.equal(await page.evaluate(() => window.answerClicks), 0);
     console.log('PASS 缺题等待、考试页面不触发、不改变答题状态');
 
+    await page.getByRole('switch', { name: '导出题库', exact: true }).uncheck();
+    assert(await page.getByRole('button', { name: '导出 CSV', exact: true, includeHidden: true }).isHidden());
+    const beforeClosedRoute = downloads.length;
+    await page.evaluate(({ url, html }) => {
+      history.pushState({}, '', url);
+      document.querySelector('app-examtest').innerHTML = new DOMParser().parseFromString(html, 'text/html').querySelector('app-examtest').innerHTML;
+    }, { url: practiceURL('开关关闭练习'), html: fixture('开关关闭练习') });
+    await page.waitForFunction(() => YianAssistant.getState().pageReady);
+    await page.waitForTimeout(800);
+    assert.equal(downloads.length, beforeClosedRoute, '开关关闭时新练习也不自动导出');
+    const reopening = page.waitForEvent('download');
+    await page.getByRole('switch', { name: '导出题库', exact: true }).check();
+    assert.equal((await reopening).suggestedFilename(), '开关关闭练习_题库_3题.csv');
+    await page.getByRole('switch', { name: '导出题库', exact: true }).uncheck();
+    const closedManual = await page.evaluate(() => {
+      try { YianAssistant.exportCurrent('json'); return ''; } catch (error) { return error.message; }
+    });
+    assert(closedManual.includes('开关'));
+    console.log('PASS 导出默认关闭与折叠、关闭后换页不下载、手动入口拒绝、开启才导出');
+
     const sampleHTML = fs.existsSync(samplePath) ? fs.readFileSync(samplePath, 'utf8') : fixture();
     const tool = await context.newPage();
     tool.on('pageerror', error => errors.push(error.message));
@@ -183,7 +215,10 @@ function parseCSV(text) {
     const localHTML = '<!doctype html><!-- saved from url=(0100)http://10.119.67.7/clientcn/exam/local/questions?flag=exercise -->' + fixture('本地练习');
     const localPath = path.join(qaDir, 'local-practice.html'); fs.writeFileSync(localPath, localHTML);
     await local.goto(require('node:url').pathToFileURL(localPath).href);
-    const localDownload = local.waitForEvent('download'); await local.addScriptTag({ content: scriptSource });
+    await local.addScriptTag({ content: scriptSource });
+    await local.evaluate(() => YianAssistant.ready);
+    const localDownload = local.waitForEvent('download');
+    await local.getByRole('switch', { name: '导出题库', exact: true }).check();
     assert.equal((await localDownload).suggestedFilename(), '本地练习_题库_3题.csv');
     assert.equal(errors.length, 0, '浏览器不应有控制台/运行时错误：' + errors.join('\n'));
     console.log('PASS 本地保存网页自动识别与浏览器错误检查');
diff --git a/谊安学题库导出.user.js b/谊安学助手 2.0.user.js
similarity index 98%
rename from 谊安学题库导出.user.js
rename to 谊安学助手 2.0.user.js
index e8ff83d..7efefc3 100644
--- a/谊安学题库导出.user.js
+++ b/谊安学助手 2.0.user.js	
@@ -1,7 +1,7 @@
 // ==UserScript==
-// @name         谊安学练习题库自动导出
+// @name         谊安学助手 2.0
 // @namespace    yianxue-question-bank
-// @version      2.0.0
+// @version      2.0.1
 // @description  不绑定网址的题库助手：岗位题库搜索、允许复制、练习自动选择与导出。
 // @match        *://*/*
 // @match        file:///*
@@ -1070,7 +1070,7 @@ window.JSZip = module.exports;
     const state = {
       autoAnswer: false, allowCopy: true, role: '', course: '', courses: [],
       bankTotal: 0, roleCounts: {}, storageMode: 'userscript', pageStatus: '等待识别练习页面',
-      canAnswer: false, canExport: false, metrics: {}, autoExport: true, expanded: false, loading: false
+      canAnswer: false, canExport: false, metrics: {}, exportEnabled: false, expanded: false, loading: false
     };
     let destroyed = false;
     let selectionText = '';
@@ -1092,7 +1092,7 @@ window.JSZip = module.exports;
     visibilityStyle.textContent = '[hidden]{display:none!important}';
     root.appendChild(visibilityStyle);
     const panel = el(doc, 'section', 'panel collapsed');
-    panel.setAttribute('aria-label', '谊安学题库助手');
+    panel.setAttribute('aria-label', '谊安学助手 2.0');
     const header = el(doc, 'div', 'header');
     const brand = el(doc, 'span', 'brand', '题库助手');
     const expand = el(doc, 'button', 'toggle', '展开');
@@ -1125,7 +1125,7 @@ window.JSZip = module.exports;
     brand.addEventListener('click', togglePanel);
 
     const switches = el(doc, 'div', 'switches');
-    function makeSwitch(labelText, callback) {
+    function makeSwitch(labelText, callback, container) {
       const label = el(doc, 'label', 'switch-row');
       const text = el(doc, 'span', '', labelText);
       const input = el(doc, 'input', 'switch');
@@ -1133,7 +1133,7 @@ window.JSZip = module.exports;
       input.setAttribute('role', 'switch');
       input.setAttribute('aria-label', labelText);
       label.append(text, input);
-      switches.appendChild(label);
+      (container || switches).appendChild(label);
       input.addEventListener('change', callback);
       return { input: input, label: label };
     }
@@ -1276,22 +1276,35 @@ window.JSZip = module.exports;
     const unprocessedList = el(doc, 'div', 'unprocessed-list');
     unprocessed.append(unprocessedSummary, unprocessedList);
     unprocessed.hidden = true;
+    pageSection.append(pageStatus, metrics, unprocessed);
+    body.appendChild(pageSection);
+
+    const exportSection = el(doc, 'section', 'page-section export-section');
+    exportSection.setAttribute('aria-label', '题库导出设置');
+    const exportSwitch = makeSwitch('导出题库', function () {
+      state.exportEnabled = exportSwitch.input.checked;
+      refresh();
+      invoke('onExportEnabledChange', state.exportEnabled);
+    }, exportSection);
+    const exportContent = el(doc, 'div', 'export-content');
+    exportContent.id = 'yian-export-content';
+    exportContent.hidden = true;
+    exportSwitch.input.setAttribute('aria-controls', exportContent.id);
+    exportContent.appendChild(el(doc, 'p', 'hint', '开启后，题目和答案完整时自动导出 CSV；也可点击下方按钮重新导出。关闭后停止后续导出。'));
     const exportRow = el(doc, 'div', 'exports');
     const exportButtons = [];
     ['csv', 'json', 'txt'].forEach(function (format) {
       const button = el(doc, 'button', '', '导出 ' + format.toUpperCase());
       button.type = 'button';
-      button.addEventListener('click', function () { invoke('onExport', format); });
+      button.addEventListener('click', function () {
+        if (state.exportEnabled && state.canExport) invoke('onExport', format);
+      });
       exportRow.appendChild(button);
       exportButtons.push(button);
     });
-    const autoExportLabel = el(doc, 'label', 'auto-export');
-    const autoExportInput = el(doc, 'input');
-    autoExportInput.type = 'checkbox';
-    autoExportLabel.append(autoExportInput, el(doc, 'span', '', '进入练习时自动导出 CSV'));
-    autoExportInput.addEventListener('change', function () { state.autoExport = autoExportInput.checked; invoke('onAutoExportChange', state.autoExport); });
-    pageSection.append(pageStatus, metrics, unprocessed, exportRow, autoExportLabel);
-    body.appendChild(pageSection);
+    exportContent.appendChild(exportRow);
+    exportSection.appendChild(exportContent);
+    body.appendChild(exportSection);
 
     function autoUnavailableReason() {
       if (!state.role) return '请选择岗位后再开启自动选择。';
@@ -1309,7 +1322,7 @@ window.JSZip = module.exports;
       if (destroyed) return;
       panel.classList.toggle('collapsed', !state.expanded);
       body.hidden = !state.expanded;
-      brand.textContent = state.expanded ? '谊安学助手' : '题库助手';
+      brand.textContent = state.expanded ? '谊安学助手 2.0' : '题库助手';
       expand.textContent = state.expanded ? '收起' : '展开';
       expand.setAttribute('aria-label', state.expanded ? '收起题库助手' : '展开题库助手');
       expand.setAttribute('aria-expanded', String(Boolean(state.expanded)));
@@ -1359,8 +1372,9 @@ window.JSZip = module.exports;
       notProcessed.forEach(function (item) {
         unprocessedList.appendChild(el(doc, 'div', '', '第 ' + item.number + ' 题 · ' + (metricLabels[item.status] || '已跳过') + '：' + (item.reason || '请人工核对。')));
       });
-      exportButtons.forEach(function (button) { button.disabled = !state.canExport; });
-      autoExportInput.checked = Boolean(state.autoExport);
+      exportSwitch.input.checked = Boolean(state.exportEnabled);
+      exportContent.hidden = !state.exportEnabled;
+      exportButtons.forEach(function (button) { button.disabled = !state.exportEnabled || !state.canExport; });
       previous.disabled = currentOffset === 0 || Boolean(state.loading);
       next.disabled = currentOffset + PAGE_SIZE >= resultTotal || Boolean(state.loading);
     }
@@ -1852,7 +1866,7 @@ window.JSZip = module.exports;
   const core = window.QuestionBankCore;
   const store = window.YianBankStore;
   const matcher = window.YianAnswerMatcher;
-  const config = { autoAnswer: false, allowCopy: true, autoExport: true, role: '', course: '' };
+  const config = { autoAnswer: false, allowCopy: true, exportEnabled: false, role: '', course: '' };
   let snapshot = { records: [], counts: {}, total: 0, revision: '', storage: 'origin' };
   let loading = true, disposed = false, page = null, previous = null;
   let searchQuery = '', runKey = '', debounceTimer;
@@ -1909,7 +1923,7 @@ window.JSZip = module.exports;
   }
   function refreshPanel(extra) {
     panel.setState(Object.assign({ autoAnswer: config.autoAnswer, allowCopy: config.allowCopy,
-      autoExport: config.autoExport, role: config.role, course: config.course, courses: courses(),
+      exportEnabled: config.exportEnabled, role: config.role, course: config.course, courses: courses(),
       bankTotal: snapshot.total, roleCounts: snapshot.counts, storageMode: snapshot.storage, loading, metrics }, extra || {}));
   }
   function performSearch(query = searchQuery, options = {}) {
@@ -1954,6 +1968,7 @@ window.JSZip = module.exports;
     } finally { loading = false; refreshPanel(); performSearch(searchQuery, { quiet: true }); tick(); }
   }
   function exportCurrent(format = 'csv') {
+    if (!config.exportEnabled) throw new Error('请先开启“导出题库”开关');
     const route = routeInfo();
     if (!route.practice) throw new Error('请先进入支持的练习页面');
     const bank = core.extract(document, route.sourceUrl);
@@ -1963,6 +1978,13 @@ window.JSZip = module.exports;
       + '，' + bank.total + ' 题、' + bank.answered + ' 个答案。若没有文件，请点击导出按钮。', bank.complete ? 'success' : 'warning');
     return bank;
   }
+  function setExportEnabled(enabled) {
+    const opening = !!enabled && !config.exportEnabled;
+    config.exportEnabled = !!enabled;
+    // 用户主动重新开启可再次下载；同一开启期间只自动导出一次相同题库。
+    if (opening) exported.clear();
+    refreshPanel(); tick(); return config.exportEnabled;
+  }
   const panel = window.YianAssistantPanel.create({
     onAutoChange: setAutoAnswer, onCopyChange: setCopy,
     onRoleChange: role => { setRole(role).catch(error => panel.setNotice(error.message, 'error')); },
@@ -1970,7 +1992,7 @@ window.JSZip = module.exports;
     onImport: files => { importFiles(files).catch(() => {}); }, onSearch: performSearch,
     onSelectionSearch: text => performSearch(text),
     onExport: format => { try { exportCurrent(format); } catch (error) { panel.setNotice(error.message, 'error'); } },
-    onAutoExportChange: enabled => { config.autoExport = !!enabled; saveSetting('autoExport', config.autoExport); tick(); }
+    onExportEnabledChange: setExportEnabled
   });
 
   function tick() {
@@ -2008,11 +2030,11 @@ window.JSZip = module.exports;
     refreshPanel({ pageStatus: status, canExport: route.practice && !!bank.total,
       canAnswer: route.practice && !route.local && page.ready && !loading && !!config.role && !!snapshot.counts[config.role] });
     if (!route.practice || !page.ready || loading) { if (runner.running) runner.stop('等待兼容练习页面准备完成'); return; }
-    if (config.autoExport && bank.complete) {
+    if (config.exportEnabled && bank.complete) {
       const key = route.key + '|' + signature;
       if (!exported.has(key)) {
         try { exportCurrent('csv'); exported.add(key); }
-        catch (error) { config.autoExport = false; refreshPanel(); panel.setNotice('自动下载失败：' + error.message, 'error'); }
+        catch (error) { config.exportEnabled = false; refreshPanel(); panel.setNotice('自动下载失败：' + error.message, 'error'); }
       }
     }
     const nextRunKey = route.key + '|' + signature + '|' + config.role + '|' + snapshot.revision;
@@ -2036,13 +2058,13 @@ window.JSZip = module.exports;
   }
   const ready = (async () => {
     try {
-      const values = await Promise.all([store.load(), store.getSetting('role', ''), store.getSetting('allowCopy', true), store.getSetting('autoExport', true)]);
+      const values = await Promise.all([store.load(), store.getSetting('role', ''), store.getSetting('allowCopy', true)]);
       snapshot = values[0]; config.role = store.roles.includes(values[1]) ? values[1] : '';
-      config.allowCopy = values[2] !== false; config.autoExport = values[3] !== false;
+      config.allowCopy = values[2] !== false;
     } catch (error) { panel.setNotice('题库读取失败：' + error.message + '。可重新导入题库。', 'error'); }
     loading = false; copy.setEnabled(config.allowCopy); refreshPanel(); tick(); return snapshot;
   })();
-  const api = Object.freeze({ ready, importFiles, setRole, setAutoAnswer, setCopy, search: performSearch, getContext,
+  const api = Object.freeze({ ready, importFiles, setRole, setAutoAnswer, setCopy, setExportEnabled, search: performSearch, getContext,
     getSnapshot: () => snapshot, getState: () => ({ ...config, metrics, pageReady: !!page && page.ready }),
     exportCurrent, collectCurrent: () => core.extract(document, routeInfo().sourceUrl), stop: dispose });
   window.YianAssistant = api; window.YianQuestionBankExporter = api;