Mansaf15's journey

I received a job offer this morning for a position with a base salary of $72k. The hiring manager called me to extend the offer, and when I asked if the salary was negotiable, he didn't say no but indicated that the recruitment team sets compensation based on experience and internal factors. I didn't push the issue further during the call. Shortly after, I got an email with a link to the offer details, which listed the recruiter as the contact for any questions. I was aiming for a salary around $75k, especially since the job posting had a range of $58k to $77,572, and I feel well-qualified for the role. The hiring manager seemed confident in my abilities. Now, I'm wondering if it's appropriate to reach out to the recruiter to see if there's any flexibility to negotiate the salary closer to my target, or if I should contact the hiring manager directly since he provided his email for questions about the role. I'm concerned about possibly overstepping by going to the recruiter after discussing salary with the hiring manager.