Загадочный Бриз

An elegant decorative frame for a fantasy book dictionary of an ancient underwater civilization. Pure white background. Fine black ink engraving, vintage scientific-book illustration style. A thin rectangular ornamental frame made of flowing seaweed, delicate shells, small marine dragons, tiny crystals and subtle ocean waves. The corners contain graceful curled dragon tails and shell motifs. Small geometric symbols inspired by an ancient underwater writing system are integrated naturally into the ornament. Refined, symmetrical, airy composition, thin clean lines, black ink only, no gray fills, no color, no text, no letters, no background texture, suitable for a printed book page.