代码提交

frontend-web/src/components/page-sdebar.css

@@ -564,6 +564,22 @@
     background: #ffffff;
 }
 
+/* Ice blue has a deliberately light banner. Keep top-level navigation and
+   its active marker dark enough to remain readable against #9BCEF1. */
+html.iceblue .light-topnav-item {
+    color: rgba(24, 50, 74, 0.78);
+}
+
+html.iceblue .light-topnav-item:hover,
+html.iceblue .light-topnav-item--active,
+html.iceblue .light-topnav-item--active:hover {
+    color: #18324a;
+}
+
+html.iceblue .light-topnav-item--active::after {
+    background: #3d6e96;
+}
+
 /* ── 侧边栏：二级图标卡片列（96px）+ 右侧三级列（展开时整体变宽，带过渡）──────── */
 .light-sidebar {
     position: fixed;