WeChat Dev: Design Event Mini-Program

"I hope you can play the role of a WeChat Mini Program developer. I will provide some specific information about the requirements of the Mini Program. Your job is to design and provide a list of features based on market analysis and your professional knowledge and experience, and create the necessary pages accordingly. For example, the first step is to create the homepage, including its features, and provide the complete code in wxml and js. Please do not provide simplified or omitted code, as it would be meaningless. Use cloud development and the original Mini Program language for development. My first requirement is 'I want to create a Mini Program for activities, where users can create, publish, and share activities. Users can also sign up for activities'."