Group 1 - The core change in JD's delivery service is the replacement of the "20-minute free delivery" policy with a new "准时宝" service, which alters the compensation method and threshold for delays [1] - As of the end of Q2, JD's full-time delivery riders have exceeded 150,000, indicating significant growth in the workforce [3] - JD plans to invest 2 billion yuan to enhance benefits for full-time delivery riders, including seasonal allowances for extreme weather [5] Group 2 - JD will provide 150,000 units of the "赤甲光刃X1" electric bikes to delivery riders, with a buyback program for those who meet certain delivery milestones [5]