Create a cinematic anime VTuber-style half-body portrait of {argument name="character name" default="a gothic cyber-diva"} standing centered in a dark cathedral-like server hall. The character has very long glossy {argument name="hair color" default="black hair with subtle purple strands"}, straight bangs, pale skin, and her face is intentionally covered by a soft blurred gray square placeholder, as if the facial area is masked for later Live2D design. She wears an ornate black gothic off-shoulder dress with sheer translucent sleeves, lace trim, a fitted bodice decorated with gold constellation, star, moon, and chain motifs, a black belt with a gold buckle, layered necklaces with green jewels and star charms, and a gold star hair ornament with dangling emerald accents on one side. Show exactly 8 notable outfit/accessory elements: 1 black off-shoulder lace dress, 2 sheer sleeves, 3 gold constellation embroidery, 4 black belt with gold buckle, 5 layered jewel necklaces, 6 dangling cross/star chest charm, 7 gold star hairpin, 8 green gem earrings or hair-chain accents. The background is a vast ruined cyber-gothic cathedral interior with high arches, tall columns, dark stone, server racks glowing with green lights on the left, hanging streams of luminous green cables from the ceiling and side walls, smoky mist, a warm circular skylight beam in the far upper center, and a thin neon-green horizontal ring of light passing behind the character at chest height. Use a 16:9 widescreen composition, centered symmetrical framing, dramatic low-key lighting, teal-green cyberpunk glow mixed with warm amber backlight, high detail, polished anime illustration blended with realistic architectural atmosphere, mysterious music-game / AITuber key visual mood. No text, no watermark, no extra characters.