This article theorizes China’s Charity Law as a staged legal architecture that institutionalizes symbolic governance through sequenced design: from normative logic, to operational mechanism, to statutory codification. Based on comparative ethnographic fieldwork in Shanghai and Chongqing (2021–2023), this article develops a three-part model of interface legality. First, it conceptualizes legality as a symbolic infrastructure of legitimacy budgeting—the institutional logic through which symbolic control is organized without procedural closure. Second, it analyzes triadic discretion as the operational logic of this system, where codified law, bureaucratic modulation, and organizational alignment interact as a choreography of relational governance. Third, it traces how this discretionary system, developed in practice after the 2016 enactment, was codified into law as structured unfulfillability—embedding impossibility into legal form to sustain reputational suspense. These mechanisms are not pathologies of implementation but institutional features of symbolic governance. By connecting the Charity Law’s expressive design to its affective operations and strategic incompletion, this article contributes to sociolegal scholarship on staged legality by revealing how institutional logic, operational rhythm, and statutory design interlock to codify symbolic governance in contemporary lawmaking.