3D渲染卡通风格商务会议场景红色人物讲解演示插画

3D rendered illustration, main colors white, blue, and red, clean and vibrant color scheme, 8 characters including one red adult and seven white characters, red character standing and pointing at screen, white characters sitting on blue chairs using laptops, teaching or demonstration interaction, large blank screen in background center, table in foreground, blue chairs arranged around table, laptops on table, formal and modern atmosphere resembling a meeting room or classroom, simple background design, no decorative elements, no text, clear and intuitive visual effect, conveying a professional and orderly teaching or meeting message