The Sino-Tibetan language family is one of the largest and most complex language families in the world, encompassing a vast geographical area primarily across East Asia, Southeast Asia, and parts of South Asia. It is second only to the Indo-European family in terms of the number of speakers, largely because of the dominance of Chinese languages, particularly Mandarin, which alone has over a billion native speakers. The family is broadly divided into two major branches: Sinitic (or Chinese) and Tibeto-Burman, each comprising multiple subgroups and languages with distinctive phonological, morphological, and syntactic features. The Sinitic branch, often synonymous with Chinese languages, includes varieties such as Mandarin, Cantonese (Yue), Wu, Min, Hakka, and Xiang, among others. These languages share a core set of phonetic, lexical, and syntactic characteristics, though mutual intelligibility varies considerably across regions. Mandarin, as the standardized and official language of China, represents the northern dialects and serves as a lingua franca across vast parts of the country. Cantonese, predominantly spoken in Guangdong and Hong Kong, has maintained distinctive tonal patterns and vocabulary, highlighting the historical diversification within the Sinitic group. One of the most striking features of Sinitic languages is their tonal system, where pitch variations determine lexical meaning. This tonal aspect is crucial in understanding the