diff --git a/png/verify_pwa.js b/png/verify_pwa.js
new file mode 100644
index 0000000..36243b1
--- /dev/null
+++ b/png/verify_pwa.js
@@ -0,0 +1,95 @@
+// PWA 验证：SW 注册、预缓存、离线启动、可安装性要素，一次跑完。
+// 跑法：node png/verify_pwa.js （真实 Chromium，验证后不清理产物，截图留证据）
+const puppeteer = require('/root/.openclaw/workspace/web_tasks/node_modules/puppeteer');
+
+const URL_BASE = 'https://daka.kory.kdns.fr';
+const PROFILE = '/tmp/wht-pwa-verify';
+
+(async () => {
+  const browser = await puppeteer.launch({
+    executablePath: '/usr/bin/chromium',
+    headless: 'new',
+    userDataDir: PROFILE,
+    args: ['--no-sandbox', '--disable-gpu', '--disable-dev-shm-usage']
+  });
+  const page = await browser.newPage();
+  await page.setViewport({ width: 390, height: 844, isMobile: true, deviceScaleFactor: 2 });
+
+  const results = [];
+  const ok = (name, cond, detail = '') => {
+    results.push(`${cond ? '✅' : '❌'} ${name}${detail ? ' — ' + detail : ''}`);
+  };
+
+  // ---- 1. 首次在线加载 + SW 注册 ----
+  await page.goto(URL_BASE + '/', { waitUntil: 'networkidle2', timeout: 45000 });
+  await new Promise(r => setTimeout(r, 3500)); // 给 SW install 留时间
+
+  const swState = await page.evaluate(async () => {
+    if (!('serviceWorker' in navigator)) return { supported: false };
+    const reg = await navigator.serviceWorker.ready;
+    const keys = await caches.keys();
+    let precacheCount = 0;
+    for (const k of keys) {
+      if (k.startsWith('wht-precache')) {
+        const c = await caches.open(k);
+        precacheCount = (await c.keys()).length;
+      }
+    }
+    return {
+      supported: true,
+      script: reg.active ? reg.active.scriptURL : null,
+      scope: reg.scope,
+      controlled: !!navigator.serviceWorker.controller,
+      cacheKeys: keys,
+      precacheCount
+    };
+  });
+  ok('SW 支持（安全上下文）', swState.supported === true);
+  ok('SW 注册成功', !!swState.script, swState.script || '');
+  ok('SW 作用域 = /', swState.scope === URL_BASE + '/', swState.scope || '');
+  ok('页面已被 SW 控制', swState.controlled === true);
+  ok('预缓存条目=11', swState.precacheCount === 11, '实际 ' + swState.precacheCount);
+
+  // ---- 2. manifest 可解析 ----
+  const manifest = await page.evaluate(async () => {
+    const res = await fetch('/manifest.webmanifest');
+    const j = await res.json();
+    return { ok: res.ok, name: j.name, icons: (j.icons || []).length, display: j.display };
+  });
+  ok('manifest 200 且可解析', manifest.ok === true && manifest.icons >= 4, JSON.stringify(manifest));
+
+  // ---- 3. 离线重启：骨架必须能起来 ----
+  await page.setOfflineMode(true);
+  await page.reload({ waitUntil: 'domcontentloaded', timeout: 20000 });
+  await new Promise(r => setTimeout(r, 3500));
+
+  const offline = await page.evaluate(() => ({
+    vue: typeof globalThis.Vue !== 'undefined',
+    payroll: typeof globalThis.WHTPayroll !== 'undefined',
+    bootHealVisible: (() => {
+      const el = document.getElementById('boot-heal');
+      return !!el && el.style.display !== 'none' && getComputedStyle(el).display !== 'none';
+    })(),
+    appText: (document.querySelector('#app') || document.body).innerText.slice(0, 60)
+  }));
+  ok('离线：Vue 可用', offline.vue === true);
+  ok('离线：薪酬模块可用', offline.payroll === true);
+  ok('离线：无 boot 恢复卡', offline.bootHealVisible === false);
+  ok('离线：页面有实际内容', offline.appText.trim().length > 20, JSON.stringify(offline.appText.slice(0, 40)));
+
+  await page.screenshot({ path: '/root/.openclaw/workspace/work-hours-tracker/png/pwa_offline_boot.png' });
+
+  // ---- 4. 恢复在线，确认导航回源 ----
+  await page.setOfflineMode(false);
+  await page.reload({ waitUntil: 'networkidle2', timeout: 45000 });
+  const backOnline = await page.evaluate(() => typeof globalThis.Vue !== 'undefined');
+  ok('恢复在线：页面正常', backOnline === true);
+
+  await page.screenshot({ path: '/root/.openclaw/workspace/work-hours-tracker/png/pwa_online.png' });
+
+  await browser.close();
+  console.log(results.join('\n'));
+  const failed = results.filter(r => r.startsWith('❌')).length;
+  console.log(failed === 0 ? 'PWA-VERIFY-ALL-PASS' : `PWA-VERIFY-FAILED x${failed}`);
+  process.exit(failed === 0 ? 0 : 1);
+})().catch(e => { console.error('FAILED:', e.message); process.exit(1); });
\ No newline at end of file
diff --git a/sw.js b/sw.js
index 2bd3756..5ab9a3e 100644
--- a/sw.js
+++ b/sw.js
@@ -15,7 +15,7 @@
  * vendor ?v= 指纹变化会触发重下，PRECACHE 键值同步更新即可。旧缓存条目
  * activate 时统一清理，不做遗留兜底。
  */
-const VERSION = 'v1';
+const VERSION = 'v2';
 const PRECACHE = `wht-precache-${VERSION}`;
 const RUNTIME = `wht-runtime-${VERSION}`;
 
@@ -66,7 +66,9 @@ async function networkFirst(request, cacheName) {
     if (res && res.ok) cache.put(request, res.clone());
     return res;
   } catch (e) {
-    const cached = await cache.match(request, { ignoreSearch: request.mode === 'navigate' });
+    // ignoreSearch：离线时 vendor 实际请求带 ?v= 指纹，预缓存里是不带指纹的裸路径；
+    // 不吞掉查询串就永远匹配不上，冷离线直接白屏。指纹内容不一致的风险可接受（离线本来就拿不到新版）。
+    const cached = await cache.match(request, { ignoreSearch: true });
     if (cached) return cached;
     // 导航请求最终兜底：预缓存的 index.html（ignoreSearch 吞掉 ?source=pwa 等查询）
     const pre = await caches.open(PRECACHE);