fix: bug

pages/bind/bind.vue

@@ -3,7 +3,7 @@
 		<!-- 自定义导航栏 -->
 		<view v-if="!fromLogin" class="custom-navbar">
 			<view class="navbar-back" @tap="goBack">
-				<text class="back-text">🔙</text>
+				<image class="back-icon" src="../../static/left.png" mode="aspectFit" />
 			</view>
 			<view class="navbar-title">绑定手机号</view>
 			<view class="navbar-placeholder"></view>
@@ -164,8 +164,8 @@
 			cursor: pointer;
 
 			.back-icon {
-				font-size: 36rpx;
-				color: var(--text-primary);
+				width: 40rpx;
+				height: 40rpx;
 			}
 
 			.back-text {