diff --git a/src/routes/posts/[slug]/+page.svelte b/src/routes/posts/[slug]/+page.svelte
index bc45742..2216704 100644
--- a/src/routes/posts/[slug]/+page.svelte
+++ b/src/routes/posts/[slug]/+page.svelte
@@ -195,7 +195,7 @@
 
 	/* .series-title — 对应 DoIt .series-title */
 	.series-nav .series-title {
-		font-size: 1.2rem;
+		font-size: 1rem;
 		font-weight: bold;
 		display: flex;
 		justify-content: space-between;
@@ -227,7 +227,7 @@
 
 	/* .series-content — 对应 DoIt .series-content */
 	.series-nav .series-content {
-		font-size: 1rem;
+		font-size: 0.875rem;
 		background-color: #f5f5f5;
 	}
 
@@ -245,14 +245,14 @@
 	/* "|" 竖线 — 对应 DoIt ul a:first-child::before */
 	.series-nav li a:first-child::before {
 		content: '|';
-		font-weight: bolder;
+		font-weight: bold;
 		margin-right: 0.5rem;
 		color: #2d809a;
 	}
 
 	/* 当前文章高亮 — 对应 DoIt span.active */
 	.series-nav li span.active {
-		font-weight: bolder;
+		font-weight: bold;
 		color: #2d809a;
 	}