From af9d19d22f2a6cd8258cb271c08b98cb2b61e023 Mon Sep 17 00:00:00 2001
From: wonder <hezhaohui0807@163.com>
Date: Mon, 25 May 2026 11:39:21 +0800
Subject: [PATCH] =?UTF-8?q?docs:=20=E6=8F=90=E7=A4=BA=E8=AF=8D=E4=BC=98?=
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---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index fe63b06..ab566ea 100644
--- a/README.md
+++ b/README.md
@@ -132,7 +132,7 @@ graph TD
 ### 提示词优化链路
 
 ```mermaid
-graph LR
+graph TD
     A["用户输入<br/>标签 + 原始 Prompt + 素材类型"] --> B["formatMetaPrompt<br/>构建元提示词：角色设定 + 输出格式 + 用户输入"]
     B --> C["llmRefine<br/>调用 OpenAI 兼容 Chat API<br/>支持 SSE 流式 / 非流式<br/>无 key 自动回退模板"]
     C --> D["三段式规范提示词<br/>【主题】【风格】【技术】"]