```html
Wing-Spar Seastead Design
🌊 Wing-Spar Seastead
Wing span: 39 ft (vertical)
Chord: 10 ft
Thickness: 5 ft
Draft: ~60% submerged
Thrusters: 8× RIM-Drive (4/side)
Living floors: 5
Deck: 20×20 ft platform
Solar canopy: 30×30 ft
🖱️ Drag to orbit | Scroll to zoom | Right-drag to pan
```
This creates a fully interactive 3D scene featuring:
**Wing-Spar Body**
- Extruded NACA-style thick airfoil cross-section (10 ft chord × 5 ft thick × 39 ft tall)
- Horizontal deck dividers showing the 5 interior floors
**Thrusters**
- 8 animated RIM-drive thrusters (4 per side) with spinning propeller blades, positioned along the submerged thick section
**Above-Water Structures**
- 20×20 ft wooden deck platform with stainless steel railings (posts + 2-level handrails)
- 30×30 ft solar panel canopy supported by 4 columns, with visible cell grid pattern
- Shaded porch area between platform edge and canopy edge
**Interior Details**
- Green battery packs on Floor 1 (marked quiet/low-acceleration)
- Window strips on each floor
- Dimension/label sprites throughout
**Environment**
- Animated wave shader water surface at the 60% draft line
- Waterline markers (green/red)
- Splash particles around the waterline
- Sky gradient dome
- Ghosted 40-ft container outline for shipping reference
- Fog for depth
**Interaction**: Orbit with left-drag, zoom with scroll, pan with right-drag, touch-supported.