fix: back

pages/bind/bind.vue

@@ -3,8 +3,7 @@
 		<!-- 自定义导航栏 -->
 		<view v-if="!fromLogin" class="custom-navbar">
 			<view class="navbar-back" @tap="goBack">
-				<text class="back-icon">←</text>
-				<text class="back-text">返回</text>
+				<text class="back-text">🔙</text>
 			</view>
 			<view class="navbar-title">绑定手机号</view>
 			<view class="navbar-placeholder"></view>
@@ -145,6 +144,7 @@
 		align-items: center;
 		justify-content: space-between;
 		height: 88rpx;
+		margin-bottom: 24rpx;
 		background: var(--bg-primary);
 		border-bottom: 1rpx solid var(--border-light);
 		padding: 0 24rpx;