diff --git a/clis/xiaohongshu/creator-note-detail.js b/clis/xiaohongshu/creator-note-detail.js
index 8b9dcd231..876e29603 100644
--- a/clis/xiaohongshu/creator-note-detail.js
+++ b/clis/xiaohongshu/creator-note-detail.js
@@ -9,7 +9,7 @@
  * Requires: logged into creator.xiaohongshu.com in Chrome.
  */
 import { cli, Strategy } from '@jackwener/opencli/registry';
-import { EmptyResultError } from '@jackwener/opencli/errors';
+import { CommandExecutionError, EmptyResultError } from '@jackwener/opencli/errors';
 const NOTE_DETAIL_DATETIME_RE = /^\d{4}-\d{2}-\d{2} \d{2}:\d{2}$/;
 const NOTE_DETAIL_METRICS = [
     { label: '曝光数', section: '基础数据' },
@@ -247,37 +247,170 @@ const DETAIL_API_ENDPOINTS = [
     { suffix: '/api/galaxy/creator/datacenter/note/base', key: 'noteBase' },
     { suffix: '/api/galaxy/creator/datacenter/note/analyze/audience/trend', key: 'audienceTrend' },
     { suffix: '/api/galaxy/creator/datacenter/note/audience/source/detail', key: 'audienceSourceDetail' },
-    { suffix: '/api/galaxy/creator/datacenter/note/audience', key: 'audienceSource' },
+    { suffix: '/api/galaxy/creator/datacenter/note/audience/source', key: 'audienceSource' },
 ];
+const CAPTURE_POLL_ATTEMPTS = 20;
+const CAPTURE_POLL_INTERVAL_S = 0.5;
+function detailApiEndpointForUrl(url) {
+    if (!url)
+        return null;
+    try {
+        const parsed = new URL(String(url), 'https://creator.xiaohongshu.com');
+        return DETAIL_API_ENDPOINTS.find((endpoint) => parsed.pathname === endpoint.suffix) ?? null;
+    }
+    catch {
+        return null;
+    }
+}
+function findCapturedUrl(captureMap, suffix) {
+    return Object.keys(captureMap).find((url) => detailApiEndpointForUrl(url)?.suffix === suffix);
+}
+function isPlainObject(value) {
+    return value !== null && typeof value === 'object' && !Array.isArray(value);
+}
+function assertOptionalArray(payload, key, suffix) {
+    if (key in payload && !Array.isArray(payload[key])) {
+        throw new CommandExecutionError(`xiaohongshu creator-note-detail: signed API ${suffix} returned malformed ${key}`);
+    }
+}
+function assertOptionalPlainObject(payload, key, suffix) {
+    if (key in payload && !isPlainObject(payload[key])) {
+        throw new CommandExecutionError(`xiaohongshu creator-note-detail: signed API ${suffix} returned malformed ${key}`);
+    }
+}
+function validateCapturedPayload(payload, endpoint) {
+    const suffix = endpoint.suffix;
+    if (!isPlainObject(payload)) {
+        throw new CommandExecutionError(`xiaohongshu creator-note-detail: signed API ${suffix} returned a malformed payload`);
+    }
+    if (endpoint.key === 'noteBase') {
+        assertOptionalPlainObject(payload, 'hour', suffix);
+        assertOptionalPlainObject(payload, 'day', suffix);
+    }
+    if (endpoint.key === 'audienceSource') {
+        assertOptionalArray(payload, 'source', suffix);
+    }
+    if (endpoint.key === 'audienceSourceDetail') {
+        for (const key of ['gender', 'age', 'city', 'interest']) {
+            assertOptionalArray(payload, key, suffix);
+        }
+    }
+    return payload;
+}
+function parseCapturedJson(capture, endpoint) {
+    const suffix = endpoint.suffix;
+    if (!capture || typeof capture !== 'object') {
+        throw new CommandExecutionError(`xiaohongshu creator-note-detail: malformed capture for ${suffix}`);
+    }
+    if (capture.ok !== true) {
+        throw new CommandExecutionError(`xiaohongshu creator-note-detail: signed API ${suffix} returned HTTP ${capture.status ?? 'non-2xx'}`);
+    }
+    if (typeof capture.body !== 'string') {
+        throw new CommandExecutionError(`xiaohongshu creator-note-detail: signed API ${suffix} returned a non-text body`);
+    }
+    try {
+        const envelope = JSON.parse(capture.body);
+        const payload = isPlainObject(envelope) && Object.hasOwn(envelope, 'data') ? envelope.data : envelope;
+        return validateCapturedPayload(payload, endpoint);
+    }
+    catch {
+        throw new CommandExecutionError(`xiaohongshu creator-note-detail: signed API ${suffix} returned invalid JSON or payload shape`);
+    }
+}
+// Capture the dashboard's signed datacenter/note responses on window.__xhsCapture
+// since a direct fetch() from page.evaluate bypasses the x-s signing and gets 406.
+async function installXhsFetchCaptureHook(page) {
+    await page.evaluate(`(() => {
+    const targetPaths = ${JSON.stringify(DETAIL_API_ENDPOINTS.map((endpoint) => endpoint.suffix))};
+    const shouldCapture = (url) => {
+      try {
+        return targetPaths.includes(new URL(String(url), window.location.origin).pathname);
+      } catch (_) {
+        return false;
+      }
+    };
+    // Reset the buffer every call so stale captures from a previous run on
+    // the same tab cannot leak into the current navigation's harvest.
+    window.__xhsCapture = {};
+    if (window.__xhsCaptureInstalled) return;
+    window.__xhsCaptureInstalled = true;
+    const origFetch = window.fetch;
+    window.fetch = async function(...args) {
+      const resp = await origFetch.apply(this, args);
+      try {
+        const url = typeof args[0] === 'string' ? args[0] : (args[0] && args[0].url) || '';
+        if (shouldCapture(url)) {
+          resp.clone().text().then((body) => {
+            try { window.__xhsCapture[url] = { status: resp.status, ok: resp.ok, body }; } catch (_) {}
+          }).catch(() => {});
+        }
+      } catch (_) {}
+      return resp;
+    };
+    const OrigXHR = window.XMLHttpRequest;
+    function HookedXHR() {
+      const xhr = new OrigXHR();
+      const origOpen = xhr.open;
+      let capturedUrl = '';
+      xhr.open = function(method, url, ...rest) {
+        capturedUrl = url;
+        return origOpen.call(this, method, url, ...rest);
+      };
+      xhr.addEventListener('load', () => {
+        try {
+          if (shouldCapture(capturedUrl)) {
+            window.__xhsCapture[capturedUrl] = { status: xhr.status, ok: xhr.status >= 200 && xhr.status < 300, body: xhr.responseText };
+          }
+        } catch (_) {}
+      });
+      return xhr;
+    }
+    HookedXHR.prototype = OrigXHR.prototype;
+    // Preserve readyState constants (UNSENT / OPENED / HEADERS_RECEIVED / LOADING / DONE)
+    // since dashboard code may read XMLHttpRequest.DONE etc against the constructor.
+    for (const key of ['UNSENT', 'OPENED', 'HEADERS_RECEIVED', 'LOADING', 'DONE']) {
+      if (key in OrigXHR) HookedXHR[key] = OrigXHR[key];
+    }
+    window.XMLHttpRequest = HookedXHR;
+  })()`);
+}
 async function captureNoteDetailPayload(page, noteId) {
-    const payload = {};
-    let captured = 0;
-    // Try to fetch each API endpoint through the page context (uses the browser's cookies)
-    for (const { suffix, key } of DETAIL_API_ENDPOINTS) {
-        await page.wait({ time: 0.5 + Math.random() });
-        const apiUrl = `${suffix}?note_id=${noteId}`;
+    await installXhsFetchCaptureHook(page);
+    // SPA-navigate inside the dashboard so the React router re-fires the
+    // signed datacenter/note/* requests under our hook. A second page.goto
+    // would wipe the hook before the first auto-fetch can land.
+    await page.evaluate(`(() => {
+    const target = '/statistics/note-detail?noteId=' + ${JSON.stringify(noteId)};
+    history.pushState({}, '', target);
+    window.dispatchEvent(new PopStateEvent('popstate'));
+  })()`);
+    const wantedSuffixes = DETAIL_API_ENDPOINTS.map((endpoint) => endpoint.suffix);
+    let captureMap = {};
+    for (let i = 0; i < CAPTURE_POLL_ATTEMPTS; i++) {
+        await page.wait(CAPTURE_POLL_INTERVAL_S);
+        let raw;
         try {
-            const data = await page.evaluate(`
-        async () => {
-          try {
-            const resp = await fetch(${JSON.stringify(apiUrl)}, { credentials: 'include' });
-            if (!resp.ok) return null;
-            const json = await resp.json();
-            return JSON.stringify(json.data ?? {});
-          } catch { return null; }
+            raw = await page.evaluate('JSON.stringify(window.__xhsCapture || {})');
+            captureMap = typeof raw === 'string' ? JSON.parse(raw) : {};
+        }
+        catch {
+            throw new CommandExecutionError('xiaohongshu creator-note-detail: failed to read signed datacenter/note capture buffer');
         }
-      `);
-            if (data && typeof data === 'string') {
-                try {
-                    payload[key] = JSON.parse(data);
-                    captured++;
-                }
-                catch { }
-            }
+        if (!captureMap || typeof captureMap !== 'object' || Array.isArray(captureMap)) {
+            throw new CommandExecutionError('xiaohongshu creator-note-detail: malformed signed datacenter/note capture buffer');
         }
-        catch { }
+        const captured = wantedSuffixes.filter((suffix) => findCapturedUrl(captureMap, suffix));
+        if (captured.length === wantedSuffixes.length)
+            break;
+    }
+    const payload = {};
+    for (const endpoint of DETAIL_API_ENDPOINTS) {
+        const matchUrl = findCapturedUrl(captureMap, endpoint.suffix);
+        if (!matchUrl)
+            continue;
+        payload[endpoint.key] = parseCapturedJson(captureMap[matchUrl], endpoint);
     }
-    return captured > 0 ? payload : null;
+    return Object.keys(payload).length > 0 ? payload : null;
 }
 async function captureNoteDetailDomData(page) {
     const result = await page.evaluate(`() => {
@@ -308,14 +441,18 @@ async function captureNoteDetailDomData(page) {
     return result;
 }
 export async function fetchCreatorNoteDetailRows(page, noteId) {
-    await page.goto(`https://creator.xiaohongshu.com/statistics/note-detail?noteId=${encodeURIComponent(noteId)}`);
+    // Land on the dashboard root first so the React app boots before the
+    // note-specific signed APIs fire. captureNoteDetailPayload then installs
+    // the fetch+XHR hook and SPA-navigates to /statistics/note-detail under
+    // it, which is what surfaces the audience / trend rows.
+    await page.goto('https://creator.xiaohongshu.com/statistics');
+    const apiPayload = await captureNoteDetailPayload(page, noteId);
     const domData = await captureNoteDetailDomData(page).catch(() => null);
     let rows = parseCreatorNoteDetailDomData(domData, noteId);
     if (rows.length === 0) {
         const bodyText = await page.evaluate('() => document.body.innerText');
         rows = parseCreatorNoteDetailText(typeof bodyText === 'string' ? bodyText : '', noteId);
     }
-    const apiPayload = await captureNoteDetailPayload(page, noteId).catch(() => null);
     appendTrendRows(rows, apiPayload ?? undefined);
     appendAudienceRows(rows, apiPayload ?? undefined);
     return rows;
diff --git a/clis/xiaohongshu/creator-note-detail.test.js b/clis/xiaohongshu/creator-note-detail.test.js
index 9ce050a16..54f09c164 100644
--- a/clis/xiaohongshu/creator-note-detail.test.js
+++ b/clis/xiaohongshu/creator-note-detail.test.js
@@ -1,5 +1,5 @@
 import { describe, expect, it, vi } from 'vitest';
-import { EmptyResultError } from '@jackwener/opencli/errors';
+import { CommandExecutionError, EmptyResultError } from '@jackwener/opencli/errors';
 import { getRegistry } from '@jackwener/opencli/registry';
 import { appendAudienceRows, appendTrendRows, parseCreatorNoteDetailDomData, parseCreatorNoteDetailText } from './creator-note-detail.js';
 import './creator-note-detail.js';
@@ -208,40 +208,44 @@ describe('xiaohongshu creator-note-detail', () => {
     it('navigates to the note detail page and returns parsed rows', async () => {
         const cmd = getRegistry().get('xiaohongshu/creator-note-detail');
         expect(cmd?.func).toBeTypeOf('function');
-        const page = createPageMock([
-            {
-                title: '示例笔记',
-                infoText: '示例笔记\n2026-03-19 12:00\n切换笔记',
-                sections: [
-                    {
-                        title: '基础数据',
-                        metrics: [
-                            { label: '曝光数', value: '100', extra: '粉丝占比 10%' },
-                            { label: '观看数', value: '50', extra: '粉丝占比 20%' },
-                            { label: '封面点击率', value: '12%', extra: '粉丝 11%' },
-                            { label: '平均观看时长', value: '30秒', extra: '粉丝 31秒' },
-                            { label: '涨粉数', value: '2', extra: '' },
-                        ],
-                    },
-                    {
-                        title: '互动数据',
-                        metrics: [
-                            { label: '点赞数', value: '8', extra: '粉丝占比 25%' },
-                            { label: '评论数', value: '1', extra: '粉丝占比 0%' },
-                            { label: '收藏数', value: '3', extra: '粉丝占比 50%' },
-                            { label: '分享数', value: '0', extra: '粉丝占比 0%' },
-                        ],
-                    },
-                ],
-            },
-            null,
-            null,
-            null,
-            null,
-        ]);
+        const domData = {
+            title: '示例笔记',
+            infoText: '示例笔记\n2026-03-19 12:00\n切换笔记',
+            sections: [
+                {
+                    title: '基础数据',
+                    metrics: [
+                        { label: '曝光数', value: '100', extra: '粉丝占比 10%' },
+                        { label: '观看数', value: '50', extra: '粉丝占比 20%' },
+                        { label: '封面点击率', value: '12%', extra: '粉丝 11%' },
+                        { label: '平均观看时长', value: '30秒', extra: '粉丝 31秒' },
+                        { label: '涨粉数', value: '2', extra: '' },
+                    ],
+                },
+                {
+                    title: '互动数据',
+                    metrics: [
+                        { label: '点赞数', value: '8', extra: '粉丝占比 25%' },
+                        { label: '评论数', value: '1', extra: '粉丝占比 0%' },
+                        { label: '收藏数', value: '3', extra: '粉丝占比 50%' },
+                        { label: '分享数', value: '0', extra: '粉丝占比 0%' },
+                    ],
+                },
+            ],
+        };
+        const page = createPageMock(undefined);
+        page.evaluate = vi.fn(async (script) => {
+            const s = String(script);
+            if (s.includes('window.__xhsCapture =')) return undefined;
+            if (s.includes('history.pushState')) return undefined;
+            if (s.includes('JSON.stringify(window.__xhsCapture')) return JSON.stringify({});
+            if (s.includes("document.querySelector('.note-title')")) return domData;
+            if (s.includes('document.body.innerText')) return '';
+            return undefined;
+        });
         const result = await cmd.func(page, { 'note-id': 'demo-note-id' });
-        expect(page.goto.mock.calls[0][0]).toBe('https://creator.xiaohongshu.com/statistics/note-detail?noteId=demo-note-id');
-        expect(page.evaluate.mock.calls[0][0]).toContain("document.querySelector('.note-title')");
+        expect(page.goto.mock.calls[0][0]).toBe('https://creator.xiaohongshu.com/statistics');
+        expect(page.evaluate.mock.calls[0][0]).toContain('window.__xhsCapture =');
         expect(result).toEqual([
             { section: '笔记信息', metric: 'note_id', value: 'demo-note-id', extra: '' },
             { section: '笔记信息', metric: 'title', value: '示例笔记', extra: '' },
@@ -257,7 +261,7 @@ describe('xiaohongshu creator-note-detail', () => {
             { section: '互动数据', metric: '分享数', value: '0', extra: '粉丝占比 0%' },
         ]);
     });
-    it('waits between creator detail API fetches to avoid burst traffic', async () => {
+    it('polls the capture buffer while the dashboard fires its signed datacenter/note/* requests', async () => {
         const cmd = getRegistry().get('xiaohongshu/creator-note-detail');
         const domData = {
             title: '示例笔记',
@@ -284,10 +288,155 @@ describe('xiaohongshu creator-note-detail', () => {
                 },
             ],
         };
-        const page = createPageMock([domData, null, null, null, null]);
+        const page = createPageMock(undefined);
+        page.evaluate = vi.fn(async (script) => {
+            const s = String(script);
+            if (s.includes('window.__xhsCapture =')) return undefined;
+            if (s.includes('history.pushState')) return undefined;
+            if (s.includes('JSON.stringify(window.__xhsCapture')) return JSON.stringify({});
+            if (s.includes("document.querySelector('.note-title')")) return domData;
+            return undefined;
+        });
         await cmd.func(page, { 'note-id': 'demo-note-id' });
-        expect(page.wait).toHaveBeenCalledWith(expect.objectContaining({ time: expect.any(Number) }));
+        // Capture loop polls until the deadline expires (no hits with empty mock).
         expect(page.wait.mock.calls.length).toBeGreaterThanOrEqual(4);
+        const captureProbeCalls = page.evaluate.mock.calls.filter(([script]) => String(script).includes('JSON.stringify(window.__xhsCapture'));
+        expect(captureProbeCalls.length).toBeGreaterThanOrEqual(1);
+    });
+    it('matches signed API captures by exact pathname so source/detail cannot shadow source', async () => {
+        const cmd = getRegistry().get('xiaohongshu/creator-note-detail');
+        const domData = {
+            title: '示例笔记',
+            infoText: '示例笔记\n2026-03-19 12:00\n切换笔记',
+            sections: [
+                {
+                    title: '基础数据',
+                    metrics: [
+                        { label: '曝光数', value: '100', extra: '粉丝占比 10%' },
+                    ],
+                },
+            ],
+        };
+        const detailCapture = [
+            'https://creator.xiaohongshu.com/api/galaxy/creator/datacenter/note/audience/source/detail?note_id=demo-note-id',
+            {
+                status: 200,
+                ok: true,
+                body: JSON.stringify({ data: { gender: [{ title: '女性', value: 64 }] } }),
+            },
+        ];
+        const sourceCapture = [
+            'https://creator.xiaohongshu.com/api/galaxy/creator/datacenter/note/audience/source?note_id=demo-note-id',
+            {
+                status: 200,
+                ok: true,
+                body: JSON.stringify({
+                    data: {
+                        source: [
+                            {
+                                title: '首页推荐',
+                                value_with_double: 88.8,
+                                info: { imp_count: 1000, view_count: 400, interaction_count: 20 },
+                            },
+                        ],
+                    },
+                }),
+            },
+        ];
+        const baseCapture = [
+            'https://creator.xiaohongshu.com/api/galaxy/creator/datacenter/note/base?note_id=demo-note-id',
+            {
+                status: 200,
+                ok: true,
+                body: JSON.stringify({ data: { hour: { view_list: [{ date: new Date('2026-03-19T12:00:00+08:00').getTime(), count: 7 }] } } }),
+            },
+        ];
+        const trendCapture = [
+            'https://creator.xiaohongshu.com/api/galaxy/creator/datacenter/note/analyze/audience/trend?note_id=demo-note-id',
+            {
+                status: 200,
+                ok: true,
+                body: JSON.stringify({ data: { no_data: false, no_data_tip_msg: '趋势可用' } }),
+            },
+        ];
+        for (const orderedCaptures of [
+            [detailCapture, sourceCapture, baseCapture, trendCapture],
+            [sourceCapture, detailCapture, baseCapture, trendCapture],
+        ]) {
+            const captureMap = Object.fromEntries(orderedCaptures);
+            const page = createPageMock(undefined);
+            page.evaluate = vi.fn(async (script) => {
+                const s = String(script);
+                if (s.includes('window.__xhsCapture =')) return undefined;
+                if (s.includes('history.pushState')) return undefined;
+                if (s.includes('JSON.stringify(window.__xhsCapture')) return JSON.stringify(captureMap);
+                if (s.includes("document.querySelector('.note-title')")) return domData;
+                return undefined;
+            });
+            const result = await cmd.func(page, { 'note-id': 'demo-note-id' });
+            expect(result).toEqual(expect.arrayContaining([
+                { section: '观看来源', metric: '首页推荐', value: '88.8%', extra: '曝光 1000 · 观看 400 · 互动 20' },
+                { section: '观众画像', metric: '性别/女性', value: '64%', extra: '' },
+                { section: '趋势数据', metric: '按小时/观看数', value: '1 points', extra: '03-19 12:00=7' },
+            ]));
+        }
+    });
+    it('throws a typed error when a captured signed API returns non-2xx', async () => {
+        const cmd = getRegistry().get('xiaohongshu/creator-note-detail');
+        const captureMap = {
+            'https://creator.xiaohongshu.com/api/galaxy/creator/datacenter/note/base?note_id=demo-note-id': {
+                status: 406,
+                ok: false,
+                body: '{"msg":"not acceptable"}',
+            },
+        };
+        const page = createPageMock(undefined);
+        page.evaluate = vi.fn(async (script) => {
+            const s = String(script);
+            if (s.includes('window.__xhsCapture =')) return undefined;
+            if (s.includes('history.pushState')) return undefined;
+            if (s.includes('JSON.stringify(window.__xhsCapture')) return JSON.stringify(captureMap);
+            return null;
+        });
+        await expect(cmd.func(page, { 'note-id': 'demo-note-id' })).rejects.toBeInstanceOf(CommandExecutionError);
+    });
+    it('throws a typed error for wrong-shaped signed API payloads instead of falling back to DOM rows', async () => {
+        const cmd = getRegistry().get('xiaohongshu/creator-note-detail');
+        const domData = {
+            title: '示例笔记',
+            infoText: '示例笔记\n2026-03-19 12:00\n切换笔记',
+            sections: [
+                {
+                    title: '基础数据',
+                    metrics: [
+                        { label: '曝光数', value: '100', extra: '粉丝占比 10%' },
+                    ],
+                },
+            ],
+        };
+        for (const body of [
+            JSON.stringify({ data: null }),
+            JSON.stringify({ data: [] }),
+            JSON.stringify({ data: { source: {} } }),
+        ]) {
+            const captureMap = {
+                'https://creator.xiaohongshu.com/api/galaxy/creator/datacenter/note/audience/source?note_id=demo-note-id': {
+                    status: 200,
+                    ok: true,
+                    body,
+                },
+            };
+            const page = createPageMock(undefined);
+            page.evaluate = vi.fn(async (script) => {
+                const s = String(script);
+                if (s.includes('window.__xhsCapture =')) return undefined;
+                if (s.includes('history.pushState')) return undefined;
+                if (s.includes('JSON.stringify(window.__xhsCapture')) return JSON.stringify(captureMap);
+                if (s.includes("document.querySelector('.note-title')")) return domData;
+                return null;
+            });
+            await expect(cmd.func(page, { 'note-id': 'demo-note-id' })).rejects.toBeInstanceOf(CommandExecutionError);
+        }
     });
     it('throws EmptyResultError when the detail page exposes no metrics', async () => {
         const cmd = getRegistry().get('xiaohongshu/creator-note-detail');