From the perspective of poetic style, what kind of poetry does Shu Dao Nan belong to?

The difficulty of Shu Dao is an old topic in Han Yuefu, which belongs to the tune of "Harmony Song". Guo Maoqian's Poems of Yuefu, Volume 40, quoted Yuefu as saying: "The resistance of the bronze beam and jade barrier in the south of Shu Road (all mountains in Sichuan)". From Wendi to Zhang in the early Tang Dynasty, many people have used this topic. The ideological significance is also positive. Describing the sudden emergence of Shu Dao and its dangers is one of the main contents of this poem, which occupies most of the whole poem. Li Bai loves his hometown of Sichuan and the mountains and rivers of the motherland very much, and many of his poems strongly express this emotion. The same is true of Shu Dao Nan. Although, in order to convince his friends, he exaggerates the dangers of describing the Shu Road, he really loves the mountains and rivers of the motherland. He can't help but pour full enthusiasm into Shu Dao in his works. While describing the dangers and horrors of Shu Road, he also wrote its abrupt, majestic, powerful and insurmountable majestic momentum, showing the magnificence of the motherland's mountains and rivers.