diff --git a/theme.css b/theme.css
index 4794eab..5ef6d28 100644
--- a/theme.css
+++ b/theme.css
@@ -544,8 +544,7 @@ body.is-mobile .nav-file-title {
 
 /* 设置大纲样式 */
 .workspace-leaf-content[data-type='outline'] .tree-item-self:not(.mod-collapsible) .tree-item-inner {
-	/* background-color: red; */
-	margin-left: -15px;
+	margin-left: -15.5px;
 }
 
 .workspace-leaf-content[data-type='outline'] .tree-item-self.mod-collapsible .tree-item-inner {
@@ -553,11 +552,14 @@ body.is-mobile .nav-file-title {
 }
 
 .workspace-leaf-content[data-type='outline'] .tree-item-self:not(.mod-collapsible) .tree-item-inner::before {
-	/* background-color: aqua; */
 	content: "•";
 	font-weight: bolder;
-	padding-right: 3px;
+	padding-right: 4px;
 	color: var(--nav-collapse-icon-color);
+	font-size: 16px;
+	width: 7px;
+	text-align: center;
+	display: inline-block;
 }