Abstract: The first week of March 2025 might be marked by future AI historians as a subtle turning point. In this week, no giant released a "parameter doubled" monster model, nor was there a world-shocking "AGI Moment." However, under the calm surface, undercurrents surged. The entire industry's center of gravity is undergoing a quiet but profound Paradigm Shift: From pursuing pure Model Capability to pursuing System Usability, Affordability, and Compliance. This article restores a panoramic view of the maturing AI industry through deep dissection of three dimensions: reconstruction of multimodal workflows, actuarial analysis of inference economics, and implementation of compliance engineering.