(a) Application This rule applies to the service of pleadings in civil cases except for collections cases under rule 3.740(a), unlawful detainer actions, proceedings under the Family Code, and other proceedings for which different service requirements are prescribed by law. (b) Service of complaint The complaint must be served on all named defendants and proofs of service on those defendants must be filed with the court within 60 days after the filing of the complaint. When the complaint is amended