Generate a full detail guide for managers on workplace conflict resolution. The guide must be impartial and structured. It should include: 1. The manager's role as a neutral mediator, not a judge. 2. A step-by-step process for a mediation meeting. 3. Techniques for active listening and de-escalation. 4. How to guide the parties toward a mutually agreeable solution. 5. The importance of documentation and follow-up. Please include a disclaimer about consulting HR for serious disputes.