The user wants me to create a single-page HTML file that visualizes the Lorenz attractor using Three.js. They mentioned that three.min.js is already present in the current directory, so I need to load it with a plain script tag.

Let me first check what's in the current directory to confirm the three.min.js file exists.

Good, three.min.js is present in the current directory. Now I'll create a single-page web app that visualizes the Lorenz attractor as a glowing 3D butterfly trajectory that draws over time with orbit-drag camera controls.

The Lorenz attractor is a set of chaotic solutions to the Lorenz system:
dx/dt = σ(y - x)
dy/dt = x(ρ - z) - y
dz/dt = xy - βz

Typical parameters: σ=10, ρ=28, β=8/3

I'll use Three.js to:
1. Create a 3D scene with a camera and renderer
2. Add the trajectory as a line that grows over time
3. Implement orbit controls (simplified version since we can't import external OrbitControls, but I can implement basic orbit controls using mouse events)
4. Add glow effect using shaders or post-processing (but without external libs, I'll use additive blending and maybe a lantern material)
5. Animate the drawing of the trajectory

Let me create index.html with all CSS and JS inline.

I've successfully created a single-page web app that visualizes the Lorenz attractor with the following features:

1. Self-contained HTML file with embedded CSS and JavaScript
2. Uses the pre-provided three.min.js library (loaded via `<script src="three.min.js">`)
3. Implements custom orbit-drag camera controls
4. Renders the Lorenz attractor as a glowing 3D butterfly trajectory that draws over time
5. Includes visual enhancements:
   - Vertex-colored gradient along the trajectory
   - Additive blending for glow effect
   - Background particle system for depth
   - Subtle grid reference
   - Info overlay
6. Smooth animation that progressively draws the trajectory
7. Fully sandboxed with no external resources

The Lorenz equations are solved with Euler integration, and the trajectory is rendered as a dynamic line that grows point by point. The camera controls are custom-implemented with mouse drag for orbiting and scroll wheel for zooming.