What is the standard way to write the FAQPage Schema structure?

When needing to add FAQ structured data to a web page to improve visibility in search results, the standard way to write FAQPage Schema is usually in JSON-LD format, which must include core properties such as @context, @type, and mainEntity. Core properties: @context should be set to "https://schema.org" to define the context environment of the Schema; @type is fixed as "FAQPage" to indicate the data type; mainEntity is an array containing FAQ content, where each sub-item is a Question object that must include name (question text) and acceptedAnswer (answer object, containing a text field). Optimization points: The answer text should directly correspond to the question, avoiding the use of HTML format or complex structures; ensure each Question contains only one acceptedAnswer to maintain clear data logic; questions and answers should be original and have substantial content, avoiding repetition or meaningless information. During implementation, the format correctness can be verified through Google's Structured Data Testing Tool to ensure that search engines can accurately identify the FAQ content, increasing the chance of rich snippet display of the page in search results.