diff --git a/README.md b/README.md
index fc1f2bf..eb3c977 100644
--- a/README.md
+++ b/README.md
@@ -374,9 +374,6 @@ ORDER BY created_at ASC;
 2.  在 `tests/` 目录下编写集成测试。
 3.  提交 Pull Request 前请运行 `cargo test` 确保所有测试通过。
 
-<details>
-<summary>👉 点击查看系统架构 UML 图</summary>
-
 ## 🏗️ 架构设计
 
 本库采用 **异步事件驱动 (Async Event-driven)** 架构，基于 **Active Object** 模式设计。
@@ -450,6 +447,4 @@ classDiagram
     `mpsc::Sender` ..> `mpsc::Receiver` : 3. Channel Transfer (Thread-Safe)
     `mpsc::Receiver` ..> BackgroundWorker : 4. Receives Record
     BackgroundWorker --> LogOutput : 5. Serialized Writes
-```
-
-</details>
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+```
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