变色龙捉迷藏游戏：把自己涂成与墙面相同的颜色

Build a single-file, playable hide-and-seek game in one self-contained HTML file. The player is a cartoon chameleon placed in front of a backdrop of colorful wall panels: red brick, a leafy bush, blue stripes, purple dots and yellow texture. In the hide phase, the chameleon moves with the keyboard to a spot, then switches to a paint phase where a small palette, brush-size slider and eyedropper let the player recolor its body to match the wall behind it. A timer counts down each phase. In the seek phase a robot searcher sweeps the room with a flashlight, and the player can hold a key to freeze and hold its breath. Score each round from the live colour match percentage, the hiding spot and the time bonus, and show a round summary card comparing the paint job with the actual background. Run three rounds, then show the final score. Use a bright, hand-drawn cartoon look with a title screen explaining the controls. Done means the whole loop works from start screen to final score with no errors.