像素法师施法（Canvas 2D）

技法要点

约束为单文件 HTML、原生 JS + Canvas 2D、无外链资源——逼出可直接录屏的完整逐帧动画循环。

短摘录

Create a single self-contained HTML file that renders an animated pixel art wizard casting a spell, using vanilla JavaScript and Canvas 2D. No external assets, libraries, or network requests.

摘录已按合理使用截断；完整提示词见原帖。