iSunFA (Intelligent Carbon Accounting) is an AI-driven intelligent accounting and carbon management platform specifically designed for enterprise digital transformation, green finance, and ESG sustainable development. Its primary core highlight is the deep integration of financial accounting with greenhouse gas (GHG) inventory. By leveraging forward-looking AI inference models and topological algorithms, iSunFA breaks down the operational barriers between traditional finance and sustainable carbon accounting, significantly reducing labor and time costs in corporate management processes.