The toilet revolution has long become a global topic. According to data from the World Toilet Organization, 2.4 billion people worldwide lack access to toilets or live in environments with poor sanitation. This has led to widespread diseases in some countries, as direct waste discharge contaminates soil, food, and water. As a key measure of tourism services, toilets are sometimes regarded as critical for a country to "maintain its reputation and boost investment confidence." The Restroom Association of Singapore notes that a person spends over three years of their life in toilets, making toilets a significant issue both for individuals and nations. In traditional Chinese culture, toilets were once considered unfit for polite conversation, with the notion that "toilets are inherently filthy" deeply ingrained. However, with the advancement of social civilization and economic development, clean and sanitary household toilets have become widespread. In densely populated areas and tourist attractions, public toilets are often in short supply, and many suffer from severe issues of dirtiness, disorder, and poor maintenance, which can easily create negative experiences. Therefore, whether in rural governance or sanitation improvement, toilet construction and renovation are indispensable components of many public welfare projects.