Create a simple static podcast guide website in vanilla HTML/CSS/JS, with a colorful gradient style inspired…

Create a simple static podcast guide website in vanilla HTML/CSS/JS, with a colorful gradient style inspired…: a task in MiMo-V2.6-RL-oss: Agentic RL Environments (MiMo RL release). Include mock episodes, host notes, categories, and a small confetti animation when clicking subscribe.