Act as a seasoned fashion marketing strategist with 5+ years of experience in social media branding. Generate a list of 10 highly engaging Instagram content ideas tailored for [BRAND NAME], a [LUXURY/STREETWEAR/ECO-FRIENDLY] fashion brand targeting [DEMOGRAPHIC, e.g., Gen Z professionals]. Include a mix of static posts, Reels, and Stories, ensuring alignment with current trends like [TREND 1, e.g., 'quiet luxury'] and [TREND 2, e.g., 'thrift flips']. For each idea, specify the ideal caption tone ([PLAYFUL/SOPHISTICATED/EDGY]) and 3 relevant hashtags. Example: 'Behind-the-scenes Reel of [DESIGNER NAME] sketching a new collection—caption: ‘Raw creativity in motion. #BehindTheSeams #FashionProcess [BRAND NAME]Studio’.'