Create a vertical 9:16 premium consumer-electronics advertising poster for a generic flagship smartphone, shown as an ultra-detailed exploded assembly visualization. Use a single central hero composition: the phone body centered slightly left, front glass and rear shell separated in depth, with internal modules floating between them in precise layered alignment from left to right. Show realistic components such as camera cluster, battery block, logic board, cooling sheet, speaker unit, connector modules, screws, and frame segments, arranged with engineering clarity and even spacing. Keep the device design original and debranded, with no logos, no trademark shapes copied exactly, and no protected interface details. Background and scene: deep graphite-to-slate gradient studio backdrop with subtle atmospheric haze, faint blueprint texture, and soft vignette. Add thin technical callout lines, small numbered markers, micro-diagram panels, and a lower information strip to create the feel of a commercial engineering showcase. The layout must feel clean, expensive, and production-ready, with strong hierarchy and generous negative space around the hero object. Lighting and materials: use controlled studio lighting from upper left and upper rear, with crisp rim highlights on metal edges, soft reflections on glass, realistic brushed titanium or matte aluminum frame surfaces, satin-black internal components, copper-toned thermal layer accents, and refined shadows that separate every floating part clearly. Emphasize precision manufacturing, material contrast, and depth without making the image chaotic. Typography and text placement: place the headline "Smartphone Exploded View" in the upper left in a modern sans-serif font, bold, clean, high legibility. Add smaller debranded supporting labels and specification-style captions around the device, using short generic engineering phrases only. Keep all text readable, aligned to a clear grid, white or light gray on dark background, with selective pale blue accent lines. Do not invent prices, dates, certifications, phone numbers, addresses, or promotional claims. Do not include any real brand names, creator handles, or distinctive copied wording. Color palette: charcoal, gunmetal, silver, soft white, muted steel blue, and restrained copper accents. Keep saturation low to medium, contrast high, and finish polished like a launch campaign key visual. Reference-image policy: use the reference only as inspiration for composition logic, exploded-view hierarchy, lighting discipline, materials, annotation density, and premium technical-poster finish. Do not replicate any exact phone model, camera arrangement, labels, logos, or proprietary text from the reference or upstream source. Negative constraints: no brand marks, no copied product identity, no human subjects, no retail price tags, no social media UI, no watermark, no cluttered background, no fantasy sci-fi parts, no illegible text blocks, no duplicated components, no distorted perspective, no copyrighted slogans.