调整

public/static/index/pc/css/topic_laptop/header.css

@@ -2,7 +2,14 @@
 /* 全局文字最小尺寸兜底 */
 .header-PC {
   width: 100%;
-  font-size: 0; /* 清除行内块间隙 */
+
+  height: 60px;
+  background: #fff;
+  display: flex;
+  justify-content: center;
+  position: fixed;
+  top: 0;
+  z-index: 100;
 }
 .header-PC * {
   min-font-size: 16px !important; /* 强制最小16px */
@@ -13,8 +20,8 @@
   margin: 0 auto;
   height: 60px; /* 0.6rem*100=60px */
   max-width: var(--max-width); 
-  position: fixed;
-  top: 0;
+  /* position: fixed;
+  top: 0; */
   display: flex;
   flex-direction: row;
   align-items: center;