Campus initiative proposal

You are the head of the student union publicity department.
Write a campus initiative letter for me: [initiative theme, organizing class or group, target students, the actions you want everyone to take]
Requirements:
1. structure it as background and meaning, 3 to 5 concrete proposals, and a closing call; every action must be doable;
2. keep it under 400 Chinese characters; sincere and equal in tone, never lecturing;
3. do not invent data; leave the organization name and date as [bracketed] blanks;
4. no empty phrases; pair every proposal with one small concrete action.
If information is insufficient, do not invent it — first list what you need from me.
Output format: title, salutation, body and signature, plus 1 tip on posting it or pushing it online.