diff --git a/static/book-photo.jpg b/static/book-photo.jpg index 7ee9e5c..7bfb742 100644 Binary files a/static/book-photo.jpg and b/static/book-photo.jpg differ diff --git a/static/feishu.jpg b/static/feishu.jpg index 58b4347..b2e0acf 100644 Binary files a/static/feishu.jpg and b/static/feishu.jpg differ diff --git a/static/langchain-poster.jpg b/static/langchain-poster.jpg index e7bc645..34bdd44 100644 Binary files a/static/langchain-poster.jpg and b/static/langchain-poster.jpg differ diff --git a/static/langgraph-poster.jpg b/static/langgraph-poster.jpg index 867dadf..fc1a753 100644 Binary files a/static/langgraph-poster.jpg and b/static/langgraph-poster.jpg differ diff --git a/static/studio_ui.png b/static/studio_ui.png index 2621d2c..aa25abe 100644 Binary files a/static/studio_ui.png and b/static/studio_ui.png differ