男图书管理员形象

生成「男图书管理员」写实人像提示词： quiet portrait of a male librarian, neat sweater, holding a book, library bookshelf background, warm reading light, classic portrait photography, calm knowledgeable expression, sharp detail, 85mm lens 要求：① 英文提示词；② 中文要点：书架背景、暖色阅读灯、书卷气质。