diff --git a/journals/2025_07_04.md b/journals/2025_07_04.md
new file mode 100644
index 0000000..2cb3f7b
--- /dev/null
+++ b/journals/2025_07_04.md
@@ -0,0 +1 @@
+- [[System Design]]
\ No newline at end of file
diff --git a/pages/Payment Service.md b/pages/Payment Service.md
new file mode 100644
index 0000000..d243808
--- /dev/null
+++ b/pages/Payment Service.md	
@@ -0,0 +1,2 @@
+- 平台跳转
+- 商家
\ No newline at end of file
diff --git a/pages/System Design.md b/pages/System Design.md
new file mode 100644
index 0000000..3270a6c
--- /dev/null
+++ b/pages/System Design.md	
@@ -0,0 +1 @@
+- [[Payment Service]]
\ No newline at end of file