Innovation Ecosystem Resilience and Corporate Innovation Investment: Evidence from China's Specialized, Refined, Differential, and Innovative Enterprises

China's Specialized, Refined, Differential, and Innovative (SRDI) enterprises are the core force for industrial transformation and upgrading, as well as for breakthroughs in key core technologies. Innovation investment is a crucial support for cultivating their core competitiveness and achieving high-quality development. However, these enterprises face challenges such as constraints on innovation resources and an uncertain external environment, requiring coordinated internal and external empower