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This article explores the technical approach of using HTML image maps combined with jQuery hover events to achieve area highlight interactions on complex background images. Addressing issues such as rapid toggling and unstable links in traditional methods, the paper provides an in-depth analysis of core mechanisms including event bubbling and element positioning, and offers a stable solution through the introduction of the maphilight plugin. Additionally, leveraging the supplementary features of the ImageMapster plugin, it demonstrates how to achieve more advanced interactive effects, including state persistence and complex area grouping. The article includes complete code examples and step-by-step implementation guides to help developers understand and apply this technology.