这是一幅没有文字的万圣节曼陀罗涂色页，采用黑色线条的哥特优雅风格。圆圈中央是带藤蔓和枫叶的南瓜，周围环绕着弯月、蜘蛛网和蝙蝠，底色为白色。你可以在曼陀罗周围的空白处加入姓名、问候语或派对日期，做成自己的可打印页面。

Create a portrait 3:4 printable adult Halloween mandala coloring page on a pure white background. Render a single intricate, perfectly centered radial composition in crisp pure-black contour line art. At the center, draw a large, unmistakable pumpkin with a curved stem, carefully segmented ribs, curling leaves, and small ornamental details. Surround it with concentric mandala rings: repeat outlined bats, crescent moons, and spiderweb medallions evenly around the circle, alternating the motifs with delicate looping vines, dots, and petal-like forms. Maintain clear eightfold radial symmetry and a legible central pumpkin. Use fine, precise, consistent-weight black outlines with plenty of enclosed regions suitable for coloring with pencils or fine markers; keep intricate detail readable at letter/A4 print size. Leave a clean white safe margin around the entire design. Pure black outlines on pure white only: no gray, shading, hatching, gradients, color, filled black areas, texture, or border. No words, letters, labels, or numbers.