diff --git a/assets/css/routes/user-center/responsive.css b/assets/css/routes/user-center/responsive.css
index 61fdffbb..321e1b04 100644
--- a/assets/css/routes/user-center/responsive.css
+++ b/assets/css/routes/user-center/responsive.css
@@ -57,8 +57,9 @@
     display: block;
   }
 
-  /* 覆盖 layout.css / sidebar.css 的 .sidebar { display:none } 与 .content-layout__aside hide */
-  body.aksrt-user-center .sidebar.page-owned.uc-sidebar,
+  /* 覆盖 layout.css 的 .content-layout__aside { display:none }（page-owned 私有导航不走全站 .sidebar） */
+  body.aksrt-user-center .uc-sidebar.page-owned,
+  body.aksrt-user-center .aksrt-profile__aside.page-owned,
   body.aksrt-user-center .content-layout__aside.page-owned {
     display: flex;
     float: none;
@@ -67,7 +68,8 @@
     margin-right: 0;
   }
 
-  body.aksrt-user-center .sidebar.page-owned.uc-sidebar {
+  body.aksrt-user-center .uc-sidebar.page-owned,
+  body.aksrt-user-center .aksrt-profile__aside.page-owned {
     position: fixed;
     top: 0;
     left: -280px;
@@ -82,12 +84,14 @@
     gap: 0;
   }
 
-  body.aksrt-user-center .sidebar.page-owned.uc-sidebar.is-open {
+  body.aksrt-user-center .uc-sidebar.page-owned.is-open,
+  body.aksrt-user-center .aksrt-profile__aside.page-owned.is-open {
     left: 0;
   }
 
   /* 抽屉头部 */
-  body.aksrt-user-center .sidebar.page-owned.uc-sidebar::before {
+  body.aksrt-user-center .uc-sidebar.page-owned::before,
+  body.aksrt-user-center .aksrt-profile__aside.page-owned::before {
     content: '';
     display: block;
     height: 100px;
diff --git a/assets/css/routes/user-center/shell.css b/assets/css/routes/user-center/shell.css
index 683ee2f4..bce908e5 100644
--- a/assets/css/routes/user-center/shell.css
+++ b/assets/css/routes/user-center/shell.css
@@ -26,7 +26,13 @@
 }
 
 /* ==================== 页面自有双栏（page-owned，非全站 float 壳） ==================== */
-/* DOM: content first + aside second；桌面用 grid-area 把 aside 放左侧。 */
+/* DOM: content first + aside second；桌面用 grid-area 把 aside 放左侧。
+ * 不使用裸 .sidebar 类，避免 site-layout float / hide 规则误伤。 */
+body.aksrt-user-center .content-wrap {
+  float: none;
+  width: 100%;
+}
+
 body.aksrt-user-center .aksrt-profile__layout {
   display: block;
   width: 100%;
@@ -43,8 +49,10 @@ body.aksrt-user-center.site-layout-3 .aksrt-profile__layout {
   margin-right: 0;
 }
 
-/* 私有导航：中和 body.site-layout-1 .sidebar { display:none } 与 float 几何 */
-body.aksrt-user-center .sidebar.page-owned.uc-sidebar {
+/* 私有导航：脱离全站 .sidebar float / site-layout-1 display:none */
+body.aksrt-user-center .uc-sidebar.page-owned,
+body.aksrt-user-center .aksrt-profile__aside.page-owned,
+body.aksrt-user-center .content-layout__aside.page-owned {
   float: none;
   width: auto;
   margin-left: 0;
@@ -54,6 +62,7 @@ body.aksrt-user-center .sidebar.page-owned.uc-sidebar {
   gap: 12px;
   box-sizing: border-box;
   min-width: 0;
+  position: relative;
 }
 
 @media (min-width: 992px) {
@@ -70,14 +79,17 @@ body.aksrt-user-center .sidebar.page-owned.uc-sidebar {
     grid-area: primary;
     min-width: 0;
     width: auto;
+    max-width: none;
   }
 
   body.aksrt-user-center .aksrt-profile__layout > .uc-sidebar,
-  body.aksrt-user-center .aksrt-profile__layout > .aksrt-profile__aside {
+  body.aksrt-user-center .aksrt-profile__layout > .aksrt-profile__aside,
+  body.aksrt-user-center .aksrt-profile__layout > .content-layout__aside.page-owned {
     grid-area: aside;
   }
 
-  body.aksrt-user-center .sidebar.page-owned.uc-sidebar {
+  body.aksrt-user-center .uc-sidebar.page-owned,
+  body.aksrt-user-center .aksrt-profile__aside.page-owned {
     position: sticky;
     top: calc(var(--nav-height, 60px) + 20px);
   }
@@ -103,7 +115,7 @@ body.aksrt-user-center .sidebar.page-owned.uc-sidebar {
   line-height: 1;
 }
 /* ==================== 左侧边栏 ==================== */
-/* sticky / 双栏位置由 body.aksrt-user-center .sidebar.page-owned 负责；此处只定 chrome 布局 */
+/* sticky / 双栏位置由 body.aksrt-user-center .uc-sidebar.page-owned 负责；此处只定 chrome 布局 */
 .uc-sidebar {
   display: flex;
   flex-direction: column;
diff --git a/templates/pages/page-profile.php b/templates/pages/page-profile.php
index d62cf3b3..d495d7b0 100644
--- a/templates/pages/page-profile.php
+++ b/templates/pages/page-profile.php
@@ -68,7 +68,7 @@ get_header();
 				<?php get_template_part('templates/parts/user-center/account-modals', null, ['context' => $render_context]); ?>
 			</div>
 
-			<aside class="content-layout__aside sidebar page-owned uc-sidebar aksrt-profile__aside" role="complementary" aria-label="<?php esc_attr_e('用户中心导航', 'aksrt'); ?>">
+			<aside class="content-layout__aside page-owned uc-sidebar aksrt-profile__aside" role="complementary" aria-label="<?php esc_attr_e('用户中心导航', 'aksrt'); ?>">
 				<?php get_template_part('templates/parts/user-center/sidebar', null, ['context' => $render_context]); ?>
 			</aside>
 		</div>