Group 1 - The beginning of autumn is marked by the solar term "Liqiu," which is the 13th of the 24 solar terms and signifies the first phase of autumn [1] - During this period, most regions in China are still experiencing high temperatures, as it coincides with the end of the "Three Fu Days" [3] - The traditional customs associated with "Liqiu" include "biting autumn" or "eating autumn," where people consume fruits like watermelon and cantaloupe to dispel the lingering summer heat [6]