US President Donald Trump spent the final morning of his Beijing visit inside one of China’s most secretive and heavily guarded compounds, walking through imperial-era gardens with President Xi Jinping in a carefully choreographed display of diplomatic symbolism. The two leaders strolled through Zhongnanhai — the political nerve centre of China’s ruling Communist Party — admiring centuries-old trees, landscaped lakes and historic pavilions before holding talks over tea and lunch, CNN reported. During the walk, Xi even offered to send Trump rose seeds from the compound’s gardens. The rare invitation placed Trump among a small group of American presidents granted access to the sprawling leadership enclave hidden behind red walls beside Beijing’s Forbidden City. Xi described the visit as a gesture of reciprocity after Trump hosted him at the Mar-a-Lago resort in Florida during their first meeting in 2017.…