Kiếm Tu Bất Tử Nhất Kiếm Khai Thiên Môn

An epic vertical fantasy xianxia concept art scene showing [a lone immortal swordsman] standing on the jagged peak of a dark mountain, seen from behind in a heroic low-angle view. The warrior wears flowing [white and silver] ancient Chinese robes with long wind-whipped sleeves, layered fabric, ornate metallic trim, a tied sash, and long black hair streaming in the gale. He raises a straight sword vertically toward the sky, its blade generating a blinding golden-white beam of divine energy that cleaves open a colossal heavenly gate. The ancient stone gate consists of two monumental dark slabs covered in intricate circular carvings, runes, and gold filigree, fracturing down the center. Intense lightning, arcing plasma, glowing fissures, sparks, and floating shattered stone fragments radiate from the impact. Setting is above dusk storm clouds, featuring towering dark thunderheads, golden backlighting, dramatic volumetric rays, and distant silhouettes of traditional Chinese mountain temples and pagoda roofs half-swallowed by mist on the lower horizon. High-contrast cinematic lighting with dark teal-gray storm tones and molten gold radiance; ultra-detailed, awe-inspiring divine scale, no modern objects, no text, no watermark.