#Q402 serves as the first unified payment signature execution and governance layer, closely integrating transaction validation with strategy audits to drastically reduce the coupling delays between L1 and L2. Through the EIP-7702 integration, regular accounts can directly execute in contract form without needing extra external account proxies, fundamentally enhancing the flexibility of fund management. The Policy-Aware mechanism verifies fund flows against governance rules before transactions, ensuring every payment complies with DAO or internal corporate policies, avoiding any missed regulatory funds. The most crucial part is the Sign-to-Pay solution, which completes payments upon signing, merging consensus generation and execution steps into a single event, significantly lowering transaction completion time and fees, thus improving user experience and system throughput. This suite has been tested and deployed on Binance Square and will become the standard infrastructure for cross-chain finance and governance automation in the future. @QTalk $Q