diff --git a/common/js/util.js b/common/js/util.js
index e0083dd..587887a 100644
--- a/common/js/util.js
+++ b/common/js/util.js
@@ -996,8 +996,11 @@ export default {
 	/**
 	 * 判断是否在微信小程序的web-view中打开H5
 	 * @returns {boolean} 是否在微信小程序的web-view中
+	 *
+	 * 鸿蒙元服务(JSVM)没有 navigator 全局,改用 typeof 守卫兜底,让它直接返回 false
 	 */
 	isWeChatMiniProgram() {
+		if (typeof navigator === 'undefined' || !navigator.userAgent) return false;
 		const userAgent = navigator.userAgent.toLowerCase();
 
 		// 微信小程序的web-view User-Agent会包含以下特征之一
diff --git a/components-diy/diy-category.vue b/components-diy/diy-category.vue
index 29c3555..8ef0406 100644
--- a/components-diy/diy-category.vue
+++ b/components-diy/diy-category.vue
@@ -301,9 +301,20 @@ export default {
 		},
 		/**
 		 * 获取高度区间
+		 *
+		 * 鸿蒙 JSVM 在 mounted() 之前触发 onShow,导致 query 还是 undefined
+		 * 加防御性检查,避免上线后第一次进入崩溃
 		 */
 		getHeightArea(index) {
 			let heightArea = [];
+			if (!query || typeof query.selectAll !== 'function') {
+				query = uni.createSelectorQuery && uni.createSelectorQuery().in(this);
+			}
+			if (!query || typeof query.selectAll !== 'function') {
+				// 极端兜底:鸿蒙下若 createSelectorQuery 不存在,跳过计算
+				this.heightArea = heightArea;
+				return;
+			}
 			query
 				.selectAll('.content-wrap .child-category')
 				.boundingClientRect(data => {
diff --git a/pages_goods/_components/goods-detail-view/goods-detail-view.vue b/pages_goods/_components/goods-detail-view/goods-detail-view.vue
index 0b18b0c..da84a7b 100644
--- a/pages_goods/_components/goods-detail-view/goods-detail-view.vue
+++ b/pages_goods/_components/goods-detail-view/goods-detail-view.vue
@@ -65,7 +65,7 @@
                             <view class="box">
                                 <block v-for="(item, index) in deliveryType" :key="index">
                                     <text
-                                        v-if="goodsSkuDetail.support_trade_type.indexOf(index) != -1">{{ $lang('goods.detail.express') }}</text>
+                                        v-if="(goodsSkuDetail.support_trade_type || []).indexOf(index) != -1">{{ $lang('goods.detail.express') }}</text>
                                     <!-- 	{{ item.name }} -->
                                 </block>
                             </view>
@@ -159,7 +159,7 @@
                             <scroll-view scroll-y class="type-body">
                                 <block v-for="(item, index) in deliveryType" :key="index">
                                     <view class="type-item"
-                                        :class="{ 'not-support': goodsSkuDetail.support_trade_type.indexOf(index) == -1 }">
+                                        :class="{ 'not-support': (goodsSkuDetail.support_trade_type || []).indexOf(index) == -1 }">
                                         <text class="iconfont" :class="item.icon"></text>
                                         <view class="content">
                                             <view class="title">{{ item.name }}</view>
diff --git a/pages_tool/ai-chat/ai-chat-message.vue b/pages_tool/ai-chat/ai-chat-message.vue
index b0fe5a8..8ed8f5f 100644
--- a/pages_tool/ai-chat/ai-chat-message.vue
+++ b/pages_tool/ai-chat/ai-chat-message.vue
@@ -1686,7 +1686,7 @@ _handleStreamError(msg) {
 
       // H5 优先使用 Clipboard API，降级使用 document.execCommand
       try {
-        if (navigator.clipboard && navigator.clipboard.writeText) {
+        if (typeof navigator !== 'undefined' && navigator.clipboard && navigator.clipboard.writeText) {
           navigator.clipboard.writeText(finalText).then(() => {
             uni.showToast({ title: selectedText ? this.$lang('ai-chat.index.copySelected') : this.$lang('ai-chat.index.copySuccess'), icon: 'success' })
           }).catch(() => {
diff --git a/pages_tool/pay/cashier.vue b/pages_tool/pay/cashier.vue
index c5ff6a8..c9a2eff 100644
--- a/pages_tool/pay/cashier.vue
+++ b/pages_tool/pay/cashier.vue
@@ -116,7 +116,7 @@ export default {
 						this.confirm();
 					}
 				})
-			} else if (/AlipayClient/.test(window.navigator.userAgent)) {
+			} else if (typeof window !== 'undefined' && window.navigator && /AlipayClient/.test(window.navigator.userAgent || '')) {
 				this.payTypeList.forEach((item, index) => {
 					if (item.type == 'alipay') {
 						this.payIndex = index;