fix: 愈心魔方顶栏 logo 用同级 cover 叠在 web-view 上（202608279）

保留 yxg-nav-bar + web-view 兄弟结构；微信端普通 image 会被 web-view 盖住，
用页面级 cover-image 对齐导航行显示 logo。

Co-authored-by: Cursor <cursoragent@cursor.com>

pages/yxg-magic/index.vue

@@ -3,12 +3,14 @@
 	<view class="yxg-page">
 		<view class="yxg-nav-bar" :style="navBarStyle">
 			<view class="yxg-nav-row" :style="navRowStyle">
+				<!-- #ifndef MP-WEIXIN -->
 				<image
 					class="yxg-nav-logo"
 					:src="YXG_MP_LOGO_URL"
 					mode="aspectFit"
 					:style="logoStyle"
 				/>
+				<!-- #endif -->
 			</view>
 		</view>
 		<web-view
@@ -18,6 +20,16 @@
 			@load="onWebLoad"
 			@error="onWebError"
 		/>
+		<!-- #ifdef MP-WEIXIN -->
+		<!-- 同级 cover：仅承载 logo，不在 web-view 内；普通 image 会被 web-view 盖住 -->
+		<cover-view class="yxg-logo-cover" :style="logoCoverStyle">
+			<cover-image
+				class="yxg-nav-logo"
+				:src="YXG_MP_LOGO_URL"
+				:style="coverLogoStyle"
+			/>
+		</cover-view>
+		<!-- #endif -->
 	</view>
 </template>
 
@@ -57,13 +69,16 @@ const headH = statusBarH + navBarH
 const webviewH = windowH - headH
 const logoH = Math.min(menuH, 30)
 const logoW = Math.min(Math.round((logoH * 598) / 130), Math.floor(screenW * 0.4))
+const logoLeft = Math.floor((screenW - logoW) / 2)
+const logoTop = Math.floor((navBarH - logoH) / 2)
 
-const navBarStyle = `height:${headH}px;padding-top:${statusBarH}px;`
+const navBarStyle = `height:${headH}px;padding-top:${statusBarH}px;box-sizing:border-box;`
 const navRowStyle = `height:${navBarH}px;`
 const logoStyle = `width:${logoW}px;height:${logoH}px;`
-const webviewStyle = `height:${webviewH}px;`
+const webviewStyle = `top:${headH}px;height:${webviewH}px;`
+const logoCoverStyle = `position:fixed;top:${statusBarH}px;left:0;width:${screenW}px;height:${navBarH}px;z-index:9999;`
+const coverLogoStyle = `position:absolute;left:${logoLeft}px;top:${logoTop}px;width:${logoW}px;height:${logoH}px;`
 
-/** web-view 已在导航下方，H5 只需极小顶距 */
 const h5Url = computed(
 	() =>
 		`${YXG_H5_BASE}?mp=1&nh=1&sbh=4&v=${YXG_H5_VERSION}#wechat_redirect`,
@@ -87,6 +102,7 @@ console.log('[yxg-magic] outer nav + webview', {
 	webviewH,
 	logoW,
 	logoH,
+	logoSrc: YXG_MP_LOGO_URL,
 })
 </script>
 
@@ -99,13 +115,16 @@ page {
 
 <style scoped>
 .yxg-page {
+	position: relative;
 	width: 100%;
 	height: 100%;
-	display: flex;
-	flex-direction: column;
+	overflow: hidden;
+	background-color: #ffd1c7;
 }
 
 .yxg-nav-bar {
+	position: relative;
+	z-index: 2;
 	flex-shrink: 0;
 	width: 100%;
 	box-sizing: border-box;
@@ -124,7 +143,9 @@ page {
 }
 
 .yxg-webview {
-	flex: 1;
+	position: absolute;
+	left: 0;
 	width: 100%;
+	z-index: 1;
 }
 </style>