What If History: Byzantine vs Tang Empires Infographic

Create a full 4K vertical 3:4 historical hypothesis infographic poster titled 'What if · Historical Reversal Plan'.
- Background: aged textured kraft paper (light brown, slightly yellowed, subtle creases/stains).
- Art Style: soft watercolor + ink hand-drawn illustrations and icons, delicate lines, muted earthy tones; no digital/3D effects.
- Color Palette: warm earthy tones (beige, terracotta, burnt sienna, deep indigo); avoid bright saturation.
- Layout: clean block-based layout with clear separation between sections.

### Content & Structure (Top to Bottom):
1) Header (Full Width)
- Main title: 'What if · Historical Reversal Plan'
- Subtitle: 'Cross-Civilization Collisions | {title}'
- Corner accents: small hand-drawn silhouette elements (e.g., treasure ship / compass) in faded ink-wash.

2) Core Profile (Full Width)
- Main event headline: {title}
- Badge-like decorative header icon.
- Title line: an honorific/label + an English conventional phrasing.
- Body: Basic Info / Core Traits / Key Experiences / Legacy, each with small icons.
- Visual: a hand-drawn scene of the core moment.

3) The Turning Point (Full Width)
- Title (CN+EN style acceptable, but keep text consistent per poster language choice).
- Trigger / Key Event / Outcome with a wide scene illustration.

4) Core Duel (Full Width)
- A 2x2 comparison grid with icons: Motive / Technology / Civilizational Impact / Historical Legacy.
- Hand-drawn VS symbol using crossed thematic objects.

5) What-If Scenarios (Full Width)
- Title: 'WHAT IF · {title}'
- Three short evocative scenarios, each with a small atmospheric sketch.

6) Footer (Full Width)
- Closing line about counterfactual thinking.
- Next episode teaser.
- Faint old-map background with route line.

Final: The infographic should feel like a sealed historical hypothesis manuscript—imaginative, reflective, and balanced. Vertical 4K poster, output directly without extra explanation.