diff --git a/apps/website/package.json b/apps/website/package.json
index cceb5e2da0..691347dda7 100644
--- a/apps/website/package.json
+++ b/apps/website/package.json
@@ -15,6 +15,7 @@
     "check:render": "node scripts/render-check.mjs",
     "check:deployed": "node scripts/deployed-check.mjs",
     "check:aria": "node scripts/aria-refs-check.mjs",
+    "check:service-entry": "node scripts/service-entry-check.mjs",
     "typecheck:update": "node scripts/typecheck-ratchet.mjs --update",
     "audit:en": "node qa/lang_audit.mjs",
     "audit:ru": "node qa/ru_audit.mjs"
diff --git a/apps/website/scripts/service-entry-check.mjs b/apps/website/scripts/service-entry-check.mjs
new file mode 100644
index 0000000000..c84a341a0d
--- /dev/null
+++ b/apps/website/scripts/service-entry-check.mjs
@@ -0,0 +1,26 @@
+import { readFileSync } from 'node:fs'
+
+const root = new URL('..', import.meta.url)
+const component = readFileSync(new URL('src/components/ServiceEntry.tsx', root), 'utf8')
+const app = readFileSync(new URL('src/App.tsx', root), 'utf8')
+
+const requirements = [
+  ['official Telegram bot URL', component.includes('https://t.me/t27ai_bot?start=website')],
+  ['English Telegram CTA', component.includes('Open in Telegram')],
+  ['Russian Telegram CTA', component.includes('Открыть в Telegram')],
+  ['English verified-profile explanation', component.includes('verified Telegram profile')],
+  ['Russian verified-profile explanation', component.includes('подтверждённого профиля Telegram')],
+  ['browser CTA uses native disabled semantics', component.includes('<button type="button" className="btn secondary" disabled')],
+  ['browser CTA has no URL constant', !component.includes('BROWSER_URL')],
+  ['no embedded Mini App URL', !component.includes('startapp=')],
+  ['safe external-link attributes', component.includes('rel="noopener noreferrer"')],
+  ['homepage placement', app.includes('<ServiceEntry />')],
+]
+
+const failed = requirements.filter(([, ok]) => !ok)
+if (failed.length) {
+  for (const [name] of failed) console.error(`FAIL: ${name}`)
+  process.exit(1)
+}
+
+console.log(`PASS: ${requirements.length} service-entry requirements`)
diff --git a/apps/website/src/App.tsx b/apps/website/src/App.tsx
index 4dfdf913c7..2dcc9c8465 100644
--- a/apps/website/src/App.tsx
+++ b/apps/website/src/App.tsx
@@ -1,6 +1,7 @@
 import { lazy, Suspense } from 'react'
 import Navigation from './components/Navigation'
 import Footer from './components/Footer'
+import ServiceEntry from './components/ServiceEntry'
 import { TnfHero } from './components/sections/tnf'
 
 // Главная страница построена под статьёй «Trinity S³AI: Ternary Network Floats»
@@ -45,6 +46,7 @@ export default function App() {
       <Navigation />
 
       <TnfHero />
+      <ServiceEntry />
 
       <Suspense fallback={<SectionFallback />}>
         <TnfClaim />
diff --git a/apps/website/src/components/ServiceEntry.tsx b/apps/website/src/components/ServiceEntry.tsx
new file mode 100644
index 0000000000..48cd1f8262
--- /dev/null
+++ b/apps/website/src/components/ServiceEntry.tsx
@@ -0,0 +1,57 @@
+import { useI18n } from '../i18n/context'
+
+const TELEGRAM_URL = 'https://t.me/t27ai_bot?start=website'
+
+const copy = {
+  en: {
+    eyebrow: 'TRINITY S3AI SERVICE',
+    title: 'Continue with your own Telegram identity',
+    body: 'The agent works only inside a verified Telegram profile. The website does not create a parallel account, expose credentials, or let one user act as another.',
+    telegram: 'Open in Telegram',
+    browser: 'Try in browser',
+    browserNote: 'Browser access will appear here after the owner confirms a stable public Mini App URL.',
+  },
+  ru: {
+    eyebrow: 'СЕРВИС TRINITY S3AI',
+    title: 'Продолжите со своим профилем Telegram',
+    body: 'Агент работает только внутри подтверждённого профиля Telegram. Сайт не создаёт параллельную учётную запись, не раскрывает ключи и не позволяет действовать от имени другого пользователя.',
+    telegram: 'Открыть в Telegram',
+    browser: 'Попробовать в браузере',
+    browserNote: 'Вход из браузера появится здесь после подтверждения владельцем стабильного публичного URL Mini App.',
+  },
+}
+
+export default function ServiceEntry() {
+  const { lang } = useI18n()
+  const t = copy[lang === 'ru' ? 'ru' : 'en']
+
+  return (
+    <section className="tnf-section" aria-labelledby="service-entry-title" style={{ paddingTop: 0 }}>
+      <div className="tnf-wrap">
+        <div className="tnf-cell" style={{ padding: 'clamp(var(--sp2), 5vw, var(--sp3))' }}>
+          <span className="tnf-badge" style={{ color: 'var(--accent)' }}>{t.eyebrow}</span>
+          <h2 id="service-entry-title" className="tnf-h2" style={{ marginTop: 'var(--sp0)' }}>{t.title}</h2>
+          <p className="tnf-lede" style={{ marginBottom: 'var(--sp2)' }}>{t.body}</p>
+
+          <div style={{ display: 'flex', flexWrap: 'wrap', gap: 'var(--sp0)', alignItems: 'center' }}>
+            <a
+              className="btn"
+              href={TELEGRAM_URL}
+              target="_blank"
+              rel="noopener noreferrer"
+              aria-label={`${t.telegram} — @t27ai_bot`}
+            >
+              {t.telegram}
+            </a>
+            <button type="button" className="btn secondary" disabled style={{ cursor: 'not-allowed', opacity: 0.55 }}>
+              {t.browser}
+            </button>
+          </div>
+          <p style={{ color: 'var(--muted)', fontSize: 'var(--f-1)', margin: 'var(--sp0) 0 0', maxWidth: '68ch' }}>
+            {t.browserNote}
+          </p>
+        </div>
+      </div>
+    </section>
+  )
+}