Why do Chinese paintings mainly rely on line modeling?

Chinese painting mainly relies on line modeling, which not only outlines the outline with lines, but also expresses the texture and light and shade with lines, making the image vivid. China traditional painting has a long history and unique style. Different painting schools, styles, forms and expressions of artistic voices of painters in past dynasties have evolved and developed, forming an artistic form with strong national style and distinctive characteristics of the times. In particular, the expression with lines as the main modeling means greatly enriches the abstract aesthetic features of China's paintings, making this unique style enduring.