diff --git a/css/about.css b/css/about.css
index 60c36f3..e3af931 100644
--- a/css/about.css
+++ b/css/about.css
@@ -8,6 +8,20 @@
   min-height: 100vh;
 }
 
+/* 覆盖 common/extend 中的旧白色主题 */
+#about .section-content {
+  padding-left: 20px;
+  padding-right: 20px;
+}
+
+#about .section-title .section-desc {
+  color: rgba(148, 163, 184, 0.7);
+}
+
+#about .section {
+  background: transparent;
+}
+
 /* ============================================
    1. Hero Banner
    ============================================ */