diff --git a/static/src/components/chat/actions/ToolAction.vue b/static/src/components/chat/actions/ToolAction.vue
index 8921385..8fd8090 100644
--- a/static/src/components/chat/actions/ToolAction.vue
+++ b/static/src/components/chat/actions/ToolAction.vue
@@ -1228,7 +1228,7 @@ function renderEasterEgg(result: any, args: any): string {
   grid-template-columns: 5ch 1ch minmax(0, 1fr);
   column-gap: 8px;
   padding: 2px 4px;
-  margin: 1px 0;
+  margin: 0;
   align-items: start;
 }
 
diff --git a/static/src/components/chat/actions/toolRenderers.ts b/static/src/components/chat/actions/toolRenderers.ts
index 92997c5..92d4664 100644
--- a/static/src/components/chat/actions/toolRenderers.ts
+++ b/static/src/components/chat/actions/toolRenderers.ts
@@ -386,6 +386,14 @@ function renderEditFile(result: any, args: any): string {
           return true;
         })
         .sort((a: any, b: any) => {
+          const aIsChange = a.marker === '-' || a.marker === '+';
+          const bIsChange = b.marker === '-' || b.marker === '+';
+          // 仅变更行之间优先按 marker 分组（- 在前 + 在后），再按行号
+          if (aIsChange && bIsChange) {
+            const markerDelta = (markerOrder[a.marker] ?? 9) - (markerOrder[b.marker] ?? 9);
+            return markerDelta || (a.lineNo ?? Number.MAX_SAFE_INTEGER) - (b.lineNo ?? Number.MAX_SAFE_INTEGER);
+          }
+          // 上下文行或跨类型：按行号优先
           const lineDelta = (a.lineNo ?? Number.MAX_SAFE_INTEGER) - (b.lineNo ?? Number.MAX_SAFE_INTEGER);
           return lineDelta || (markerOrder[a.marker] ?? 9) - (markerOrder[b.marker] ?? 9);
         })
diff --git a/static/src/components/overlay/VersioningDialog.vue b/static/src/components/overlay/VersioningDialog.vue
index 24d1c21..0235015 100644
--- a/static/src/components/overlay/VersioningDialog.vue
+++ b/static/src/components/overlay/VersioningDialog.vue
@@ -764,7 +764,7 @@ const formatTime = (value: string) => {
 
 .diff-line {
   padding: 2px 4px;
-  margin: 1px 0;
+  margin: 0;
   white-space: pre-wrap;
   word-wrap: break-word;
 }