Act as a LinkedIn marketing strategist with 5+ years of experience in B2B and employer branding. Provide a detailed step-by-step guide on how to optimize a LinkedIn Company page to increase visibility, engagement, and lead generation. Include best practices for [PROFILE COMPLETENESS], [CONTENT STRATEGY], and [AUDIENCE TARGETING]. Address key elements like the About section, banner image, post frequency, hashtag usage, and employee advocacy. Also, suggest metrics to track success, such as follower growth, engagement rate, and website clicks. Tailor recommendations for [INDUSTRY] and [COMPANY SIZE] to ensure relevance.