北京国安队获足协杯赛冠军，贺信来了！（北京国安问鼎足协杯，贺信送达！）

Drafting congratulatory letter

I need to respond to the user's message in Chinese, which shares that the Beijing Guoan team has won the FA Cup championship. It sounds like they’re asking for a congratulatory letter or message. I’ll keep it formal and official, while also being concise and straightforward. No heavy formatting is necessary; plain text will work just fine. I want to make sure to stay focused on the sports aspect since there shouldn’t be any political issues here.Crafting congratulatory letter options

I need to include achievements, gratitude to fans, and hopes for the future in the letter. It might be helpful to ask if the user wants a short telegram or a longer version, but I could provide a template first and ask for adjustments later. I’m thinking of two versions: a brief one and a formal longer one.

I'll format it as a letter with a title and placeholders for the user's details, while also keeping it structured. I'll write two variants: "个人版" and "单位版," and use a fenced code block for clarity.Finalizing congratulatory letter

I think we should present the letter without code blocks for better readability. It’s important that the final letter is concise yet polished. I’ll craft a formal congratulatory letter, including a date placeholder, and ask if the user wants to add a stamp or adjust the tone.

I’ll also create a shorter version, keeping it within 50-80 words, for a concise telegram-style message. This way, the user has both options without overwhelming details!Preparing congratulatory message

I’ll create two versions of the congratulatory message: a formal version and a brief one. I won't use heavy formatting or code blocks, just plain text with appropriate spacing for readability.

For the title, I’ll keep it straightforward instead of using a complex headline. It’s important to focus on the right punctuation and tone in the Chinese text while ensuring clarity. I’ll finalize these messages without needing extra approvals. Let’s put this together!