Ensure unified messenger experiences across global platforms. Built for product designers and developers creating LINE ecosystem applications, it combines unified design language with comprehensive UI component libraries so you can build cohesive messaging interfaces efficiently, while Foundation Guidelines and UX standards enable professional user experiences without rebuilding common patterns. This system operates on principles of efficiency and high standards trusted by LINE's global design teams, featuring both Messenger-specific (LDSM) and Global Family Services (LDSG) frameworks that ensure interfaces feel native across 19 languages and multiple countries. Whether you're building chat applications or scaling design consistency across multiple messaging touchpoints, this comprehensive design system helps every project ship faster with consistent, accessible interfaces that maintain visual coherence across mobile and web experiences.