A detailed exploded-view diagram revealing the secrets of Sichuan Opera face-changing technique. Center stage: a Sichuan Opera performer in mid-performance, wearing elaborate traditional costume and headdress, with expressive facial expressions. The diagram clearly breaks down the mechanical steps and hidden mechanisms of face-changing, such as mask switching and trigger points. Minimalist dark stage background. Clear, undistorted Chinese text labels for key steps. 16:9 aspect ratio. Style: intricate 3D rendered illustration, vibrant colors, high contrast, emphasizing the dramatic and mysterious artistry of Sichuan Opera. Professional lighting, sharp focus, highly detailed.