(function () { if (window.__kkUpgradeBound) return; window.__kkUpgradeBound = true; function match(m) { return /Loading chunk|ChunkLoadError|Failed to fetch dynamically imported module|Loading CSS chunk|Unexpected token/i.test(String(m || '')); } function show() { if (document.getElementById('kk-upgrade-overlay')) return; var d = document.createElement('div'); d.id = 'kk-upgrade-overlay'; d.setAttribute('style', 'position:fixed;inset:0;z-index:2147483647;display:flex;align-items:center;justify-content:center;background:linear-gradient(#eef4ff,#ffffff);font-family:system-ui,-apple-system,sans-serif;padding:16px'); d.innerHTML = '

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正在升级系统

系统正在发布新版本，页面将自动刷新。请稍候，无需关闭窗口。

3 秒后自动刷新…

'; (document.body || document.documentElement).appendChild(d); var btn = d.querySelector('button'); if (btn) btn.onclick = function () { location.reload(); }; var n = 3; var t = setInterval(function () { n -= 1; var el = document.getElementById('kk-upgrade-cd'); if (el) el.textContent = n > 0 ? n + ' 秒后自动刷新…' : '正在刷新…'; if (n <= 0) { clearInterval(t); location.reload(); } }, 1000); } window.addEventListener('error', function (e) { if (match(e && e.message) || match(e && e.error && e.error.message)) show(); }, true); window.addEventListener('unhandledrejection', function (e) { var r = e && e.reason; if (match(r) || match(r && r.message)) show(); }); })();