diff --git a/decks/xinfra/slides.md b/decks/xinfra/slides.md
index cc40d39..f816ffc 100644
--- a/decks/xinfra/slides.md
+++ b/decks/xinfra/slides.md
@@ -207,7 +207,7 @@ graph LR
 
 # 平台分层架构 — 主系统功能
 
-<div class="mt-2">
+<div class="mt-2" style="transform: scale(0.5); transform-origin: top left; height: 50vh;">
 
 ```mermaid
 graph TB