A stylized illustrated volcanic arc strip: a long chain of mountains with several erupting and dormant volcanoes, connected by glowing lava seams like a crack. The lava is vivid red-orange, slightly molten and glossy. The ridge feels like a map overlay symbol for plate boundaries and active volcanism. Clean cartoon-realistic style, smooth shading, sharp silhouette. No text, no labels. Pure white background (#FFFFFF). Wide banner composition, high resolution, 4K.image