diff --git a/decks/xinfra/slides.md b/decks/xinfra/slides.md
index b318386..bfe6a43 100644
--- a/decks/xinfra/slides.md
+++ b/decks/xinfra/slides.md
@@ -481,7 +481,7 @@ graph LR
 
 # 平台分层架构 — 基础设施层
 
-<div class="mt-2">
+<div class="mt-2" style="transform: scale(0.5); transform-origin: top left; height: 50vh;">
 
 ```mermaid
 graph TB
@@ -518,7 +518,7 @@ graph TB
 
 # 部署架构
 
-<div class="mt-2">
+<div class="mt-2" style="transform: scale(0.5); transform-origin: top left; height: 50vh;">
 
 ```mermaid
 graph TB
@@ -566,7 +566,7 @@ Nginx 托管前端静态文件并反向代理后端 API，Go API Server 无状
 
 # 监控告警数据流
 
-<div class="mt-2">
+<div class="mt-2" style="transform: scale(0.5); transform-origin: top left; height: 50vh;">
 
 ```mermaid
 graph LR
@@ -640,7 +640,7 @@ sequenceDiagram
 
 # 多租户隔离模型（Phase 2+）
 
-<div class="mt-2">
+<div class="mt-2" style="transform: scale(0.5); transform-origin: top left; height: 50vh;">
 
 ```mermaid
 graph TB
@@ -670,7 +670,7 @@ graph TB
 
 # 安全认证流程
 
-<div class="mt-2">
+<div class="mt-2" style="transform: scale(0.5); transform-origin: top left; height: 50vh;">
 
 ```mermaid
 sequenceDiagram