diff --git a/src/renderer/src/assets/styles/responsive.css b/src/renderer/src/assets/styles/responsive.css
index e4ceadb432..f9b1a046d5 100644
--- a/src/renderer/src/assets/styles/responsive.css
+++ b/src/renderer/src/assets/styles/responsive.css
@@ -9,6 +9,11 @@
   --topic-list-width: 275px;
   --settings-width: 250px;
 
+  --scrollbar-width: 5px;
+}
+
+/* Windows系统专用滚动条配置 */
+body[os='windows'] {
   --scrollbar-width: 10px;
 }
 
diff --git a/src/renderer/src/assets/styles/scrollbar.css b/src/renderer/src/assets/styles/scrollbar.css
index 80370983ad..b8403c148a 100644
--- a/src/renderer/src/assets/styles/scrollbar.css
+++ b/src/renderer/src/assets/styles/scrollbar.css
@@ -7,10 +7,9 @@
   --color-scrollbar-thumb: var(--color-scrollbar-thumb-dark);
   --color-scrollbar-thumb-hover: var(--color-scrollbar-thumb-dark-hover);
 
-  --scrollbar-width: 10px;
+  --scrollbar-width: 6px;
   --scrollbar-height: 6px;
   --scrollbar-thumb-radius: 10px;
-  --scrollbar-thumb-width: 6px;
 }
 
 body[theme-mode='light'] {
@@ -18,6 +17,11 @@ body[theme-mode='light'] {
   --color-scrollbar-thumb-hover: var(--color-scrollbar-thumb-light-hover);
 }
 
+/* Windows系统专用滚动条配置 - 增加宽度以避免与窗口调整大小区域重叠 */
+body[os='windows'] {
+  --scrollbar-width: 10px;
+}
+
 /* 全局初始化滚动条样式 */
 ::-webkit-scrollbar {
   width: var(--scrollbar-width);
@@ -32,7 +36,10 @@ body[theme-mode='light'] {
 ::-webkit-scrollbar-thumb {
   border-radius: var(--scrollbar-thumb-radius);
   background: var(--color-scrollbar-thumb);
-  /* Add transparent border to create space from window edge */
+}
+
+/* Windows系统滚动条添加右侧间距，避免与窗口调整大小区域重叠 */
+body[os='windows'] ::-webkit-scrollbar-thumb {
   border-right: 2px solid transparent;
   background-clip: padding-box;
 }
@@ -77,7 +84,10 @@ pre:not(.shiki)::-webkit-scrollbar-thumb:hover {
 .rc-virtual-list-scrollbar-thumb {
   border-radius: var(--scrollbar-thumb-radius) !important;
   background: var(--color-scrollbar-thumb) !important;
-  /* Add transparent border to create space from window edge */
+}
+
+/* Windows系统虚拟列表滚动条添加右侧间距 */
+body[os='windows'] .rc-virtual-list-scrollbar-thumb {
   border-right: 2px solid transparent !important;
   background-clip: padding-box !important;
 }