《环球时报》答读者问：什么是日本首相指名选举？

Group 1 - The core point of the news is the election of Sanna Takashi as Japan's 104th Prime Minister, succeeding Shigeru Ishiba, through a formal process known as the Prime Minister designation election [1][2] - The Prime Minister designation election is a constitutional procedure in Japan where the National Diet formally designates the Prime Minister, emphasizing that the Prime Minister is not directly elected by the public but chosen through party nominations and voting by National Diet members [1][2] - The election must be held within 30 days after a House of Representatives election, or when the Cabinet collectively resigns, highlighting the political structure of Japan where the Prime Minister is accountable to the National Diet [1] Group 2 - In the Prime Minister designation election, political parties nominate representatives, usually their party leaders, as candidates, with the majority party leader typically being elected, although inter-party negotiations can influence the outcome [2] - Sanna Takashi's victory was aided by a coalition agreement with the Japan Innovation Party, allowing her to defeat the leader of the largest opposition party, Yoshihiko Noda, making her the first female Prime Minister in Japan's history [2] - The voting process involves two rounds: if no candidate receives a majority in the first round, the top two candidates proceed to a second round, with the final decision made by a joint session of both houses of the National Diet if there are discrepancies in results [2]