diff --git a/web/src/index.css b/web/src/index.css
index 10b7e49..a638fd6 100644
--- a/web/src/index.css
+++ b/web/src/index.css
@@ -1314,6 +1314,19 @@ button.pn-note-back:hover {
   width: 15px;
   height: 15px;
 }
+/* 选中项沿用侧栏 token 的黑底反白（colorPrimary 近黑/近白，antd 默认的
+   primary 淡色底在明暗模式下都与侧栏底色拉不开） */
+.pn-admin-menu li.ant-menu-item-selected {
+  background: var(--sidebar-primary);
+  color: var(--sidebar-primary-foreground);
+}
+.pn-admin-menu li.ant-menu-item-selected svg {
+  color: var(--sidebar-primary-foreground);
+}
+.pn-admin-menu li.ant-menu-item:hover:not(.ant-menu-item-selected) {
+  background: var(--sidebar-accent);
+  color: var(--sidebar-accent-foreground);
+}
 .pn-admin-foot {
   display: flex;
   flex-direction: column;