Ultra-realistic premium smartphone hero key visual, **vertical 9:16**, high-end commercial CGI / product advertising render, 8K detail, razor-sharp yet cinematic.

**Subject:** a flagship smartphone **{PHONE_MODEL}** shown from the **back side**, standing upright and perfectly centered in the lower-middle of the frame, slight three-quarter turn so one side edge is subtly visible, accurate proportions and thickness, clean chamfered edges, glossy metal frame. Back panel finish is **{PHONE_COLOR}** with a premium gradient (deep cobalt → icy cyan) and a fine “brushed light streak” texture that catches highlights diagonally. Camera island: modern rectangular module near the top-left of the phone back, multiple lenses with realistic glass, subtle bloom, and metallic rings; physically correct reflections, micro-scratches only if realistic.

**Environment / scene:** surreal sci-fi landscape on a dark, matte, slightly sandy/icy ground plane. The phone emerges from a **cracked impact crater** beneath it: shattered rock slabs and fragments lifted upward in mid-air around the base (dynamic levitation), with a **bright electric-blue energy glow** coming from the cracks. The ground has branching luminous blue fissures spreading outward like lightning veins, with subtle reflections and emissive spill on nearby rocks. Strong contact realism: dust, tiny pebbles, believable shadowing, and a concentrated blue under-glow halo around the phone’s bottom edge.

**Background:** wide open horizon with low **snowy mountain silhouettes** on both sides, distant and slightly hazy. Sky is a smooth gradient from deep navy at the top to pale cold light near the horizon (dawn/dusk sci-fi tone). On the right side of the sky, include **two faint planetary bodies** (one large translucent sphere and one smaller/partial), very subtle and atmospheric (not cartoonish). Add multiple thin **curved light streaks** (like stylized meteor trails / long-exposure particles) sweeping in arcs across the upper half of the image, mainly left-to-right and right-to-left, soft glow, varying lengths, adding motion without clutter.

**Lighting / camera:** cinematic HDR lighting with a strong **cool blue key light from below** (from the energy cracks) creating a bright rim along the phone’s lower edges, plus a soft cool top/side fill to define the camera module and edges. Controlled bloom only on emissive cracks and streaks. Depth: phone and near debris tack sharp; background mountains slightly softer with atmospheric perspective. Lens feel: 50–85mm commercial product look, low camera height, centered symmetry, premium negative space in the upper sky.

**Composition rules:** clean, minimal, premium; phone is the undisputed hero. Keep lots of empty sky for “ad space” but **do not add typography**. No extra props, no people, no buildings, no city lights.

**NEGATIVE PROMPT:** watermark, QR code, poster text, UI elements, extra products, hands, people, animals, messy clutter, exaggerated cartoon planets, over-saturated neon everywhere, cheap sci-fi props, distorted phone geometry, incorrect camera count, unreadable gibberish logos, brand names, misspelled text, low-res, noisy compression, oversharpen halos, crooked horizon, tilted frame.