diff --git a/src/assets/styles/profession-ui.css b/src/assets/styles/profession-ui.css
index 2e4224d..3112366 100644
--- a/src/assets/styles/profession-ui.css
+++ b/src/assets/styles/profession-ui.css
@@ -31,8 +31,10 @@ body { font-family: var(--font-b); background: linear-gradient(180deg, #aecfee 0
 body::before, body::after { content: ""; position: fixed; z-index: -1; top: -50px; width: 620px; height: 300px; pointer-events: none; background: radial-gradient(closest-side, rgba(255,255,255,.95), rgba(255,255,255,0) 76%); }
 body::before { left: -140px; }
 body::after { right: -160px; }
-/* 老壳白底不再遮挡 body 的天空渐变（layout.css 的 .base-wrap-main{background:#fff}） */
-.base-wrap-main { background: transparent; }
+/* 老壳白底（layout.css）与主题通道皮肤（base.layout.css .base-wrap-main{background:var(--page-bg)}，
+   晚于本样式注入）均不得遮挡 body 的天空渐变：html 前缀提到 (0,1,1) 与加载顺序无关地稳赢。
+   背景透出是本应用对皮肤声明的唯一越权缝，其余外观仍交皮肤管控 */
+html .base-wrap-main { background: transparent; }
 a { text-decoration: none; color: inherit; }
 ul, ol { list-style: none; }
 .container { width: 1180px; margin: 0 auto; }