Design a high-rise building inspired by the 'Mist of the Sichuan Basin' concept, with a tapering form that flares at the base. The facade reflects the ethereal fog of Chengdu, featuring a gradient of detailed, flowing elements that increase in density as they rise, evoking the mysterious and tranquil mist that blankets the region. The building incorporates natural terraces, intertwining nature with architecture, and a structural exoskeleton that mimics the fluid motion of mist swirling around the tower.