Centered subterranean mining vignette on clean white canvas: two sweat-drenched gold miners in reflective overalls and yellow safety helmets resting in exhaustion near heavy rock drilling equipment in a dark rock-bolted tunnel with visible heat haze, in top-right corner a separate floating minimal circular infographic callout bubble containing a simple 2D cartoon icon of an egg sizzling with heat lines, hand-drawn 2D explainer cartoon illustration, thick clean black outlines, simplified readable forms, flat cel-style colors, soft minimal shading, clean educational YouTube illustration, clear focal hierarchy, no photorealism, no 3D rendering, no typography, no text, no watermarks
