「大館」は FontVibe AI で作成した中国墨絵ブラシの文字エフェクトです。中国の墨（すみ）による筆文字書道のスタイルをラテン文字に応用しました。深い黒墨に本物の筆先の質感、太細のはっきりした筆致の変化、そして画仙紙の趣を備えています。中華レストランのブランディング、武術、ウェルネス、文化的なデザインに最適です。

Create a finished, square seal-style stamp on warm ivory xuan paper. The only text is the exact Chinese text "大館". Render it as one upright square chop impression in opaque matte vermilion cinnabar red: a single thin, even outer frame enclosing the two seal-script characters, arranged vertically with 大 above 館 and tightly balanced to fill the interior. Keep the glyphs squared, archaic, monumental and symmetrical, with constant-width strokes and smoothly rounded turns. The border frames the whole seal only; do not draw separate boxes around either character. Give the red pressed ink subtle uneven density, fine cinnabar grain, tiny broken gaps and lightly weathered edges where carved stone met paper. Keep the letterforms crisp and legible. Center the seal, about 55% of the canvas width, with generous untouched paper around it. Behind and around the seal, add only a very faint, spare grey-black sumi wash mark with visible bristle traces and a wet-to-dry fade; let the xuan-paper fibers show through. The wash must remain secondary and must not cross or obscure the seal. Soft natural paper light, no extra lettering, no props, no additional frames, no modern typography.