feat: 新增多语言配置并优化语言加载逻辑

1. 新增多个页面的中英文多语言词条，包括会员卡协议、积分商品、收银台等
2. 新增退款商品选择、微信支付、电子名片等页面的语言包
3. 优化lang.js语言加载逻辑，支持蛇形命名转换和多路径匹配，完善$lang调用兼容处理

common/js/lang.js

@@ -61,11 +61,35 @@ const SHARED_LANG_PACKS = [
 ];
 
 function toCamelCaseName(name) {
-	return String(name || '').replace(/-([a-z])/g, function(_, letter) {
+	return String(name || '').replace(/[-_]([a-z])/g, function(_, letter) {
 		return letter.toUpperCase();
 	});
 }
 
+function toSnakeCaseName(name) {
+	return String(name || '')
+		.replace(/([A-Z])/g, '_$1')
+		.replace(/-/g, '_')
+		.toLowerCase();
+}
+
+function buildLangPathCandidates(parts) {
+	const results = [];
+	function walk(index, current) {
+		if (index >= parts.length) {
+			const path = current.join('/');
+			if (!results.includes(path)) results.push(path);
+			return;
+		}
+		const raw = parts[index];
+		const snake = toSnakeCaseName(raw);
+		walk(index + 1, current.concat(raw));
+		if (snake !== raw) walk(index + 1, current.concat(snake));
+	}
+	walk(0, []);
+	return results;
+}
+
 function normalizeSharedLangPack(path, langData) {
 	if (!langData || typeof langData !== 'object') return {};
 
@@ -98,15 +122,96 @@ function normalizePageLangPack(path, langData) {
 	const segments = String(path).split('/').filter(Boolean);
 	if (!segments.length) return langData;
 
+	let leaf = langData;
+	let hasLeaf = true;
+	for (const segment of segments) {
+		const key = toCamelCaseName(segment);
+		if (leaf && typeof leaf === 'object' && !Array.isArray(leaf) && leaf[key] !== undefined) {
+			leaf = leaf[key];
+		} else {
+			hasLeaf = false;
+			break;
+		}
+	}
+
+	const lastSegment = toCamelCaseName(segments[segments.length - 1]);
+	const currentPageLeaf =
+		hasLeaf && leaf && typeof leaf === 'object' && !Array.isArray(leaf)
+			? leaf
+			: (langData[lastSegment] && typeof langData[lastSegment] === 'object' && !Array.isArray(langData[lastSegment]) ? langData[lastSegment] : langData);
+	let result = deepCloneLang(langData);
+	if (currentPageLeaf !== langData) {
+		// 部分语言包本身就是完整路径结构，如 { pay: { result: { title } } }。
+		// 页面内通常仍会调用 $lang('title') / $lang('xxx')，所以需要把当前页面 leaf
+		// 也展开到顶层，避免运行时出现缺失 key 警告。
+		result = deepMergeLang(deepCloneLang(currentPageLeaf), result);
+	}
+	if (!result[lastSegment]) {
+		// 兼容页面内按文件名命名空间调用的写法，如 point/goods_list 页面调用
+		// $lang('goods_list.searchPlaceholder')。
+		result[lastSegment] = deepCloneLang(currentPageLeaf);
+	}
+
 	let namespaced = {};
 	let cursor = namespaced;
 	for (let i = 0; i < segments.length; i++) {
 		const segment = toCamelCaseName(segments[i]);
-		cursor[segment] = i === segments.length - 1 ? deepCloneLang(langData) : {};
+		cursor[segment] = i === segments.length - 1 ? deepCloneLang(currentPageLeaf) : {};
 		cursor = cursor[segment];
 	}
 
-	return deepMergeLang(deepCloneLang(langData), namespaced);
+	return deepMergeLang(result, namespaced);
+}
+
+function tryResolveQualifiedPageField(locale, field) {
+	const arr = String(field || '').split('.');
+	if (arr.length < 3) return undefined;
+
+	for (let i = arr.length - 1; i >= 2; i--) {
+		const langPathCandidates = buildLangPathCandidates(arr.slice(0, i));
+		for (const langPath of langPathCandidates) {
+			const pack = normalizePageLangPack(langPath, loadLangPackSync(locale, langPath));
+			const value = resolveLangField(pack, arr);
+			if (value !== undefined) return value;
+		}
+	}
+	return undefined;
+}
+
+function resolveLangField(langData, arr) {
+	let temp = langData;
+	for (const key of arr) {
+		if (temp && typeof temp === 'object' && temp[key] !== undefined) {
+			temp = temp[key];
+		} else {
+			return undefined;
+		}
+	}
+	return typeof temp === 'string' ? temp : undefined;
+}
+
+function tryResolveLoadedPageField(locale, field) {
+	const arr = String(field || '').split('.');
+	if (!arr.length) return undefined;
+
+	let matchedValue;
+	let matchedCount = 0;
+	const prefix = `${locale}_`;
+	for (const cacheKey in loadedLangPacks) {
+		if (!Object.prototype.hasOwnProperty.call(loadedLangPacks, cacheKey)) continue;
+		if (cacheKey.indexOf(prefix) !== 0) continue;
+		const langPath = cacheKey.slice(prefix.length);
+		if (langPath === 'common' || SHARED_LANG_PACKS.includes(langPath)) continue;
+
+		const pack = normalizePageLangPack(langPath, loadedLangPacks[cacheKey]);
+		const value = resolveLangField(pack, arr);
+		if (value !== undefined) {
+			matchedValue = value;
+			matchedCount++;
+			if (matchedCount > 1) return undefined;
+		}
+	}
+	return matchedCount === 1 ? matchedValue : undefined;
 }
 
 // 清除所有语言缓存(切语言/切租户/远端覆写更新时调用)
@@ -848,6 +953,16 @@ export default {
 				value = (raw !== undefined && typeof raw === 'string') ? raw : field;
 			}
 
+			if (value === field && arr.length >= 3) {
+				const qualifiedValue = tryResolveQualifiedPageField(locale, field);
+				if (qualifiedValue !== undefined) value = qualifiedValue;
+			}
+
+			if (value === field && field !== 'title') {
+				const loadedPageValue = tryResolveLoadedPageField(locale, field);
+				if (loadedPageValue !== undefined) value = loadedPageValue;
+			}
+
 			// 将结果存入字段缓存(不含参数替换部分:参数每次可能不同)
 			_fieldResultCache[fieldCacheKey] = value;
 

lang/en-us/contact/contact.js

@@ -1,11 +1,27 @@
 export const lang = {
+	title: 'Business Card',
 
 	// Section titles
 	enterpriseFiles: 'Enterprise Files',
 	enterpriseVideos: 'Enterprise Videos',
+	onlineMessage: 'Online Message',
+	exclusiveCustomerService: 'Exclusive Customer Service',
 
 	// Share
 	contactUs: 'Contact Us',
+	share: 'Share',
+	call: 'Call',
+	copy: 'Copy',
+	oneClickNavigation: 'Navigation',
+
+	// Message form
+	name: 'Name',
+	pleaseEnterName: 'Please enter your name',
+	contactInfo: 'Contact Info',
+	pleaseEnterMobile: 'Please enter your mobile number',
+	messageContent: 'Message',
+	pleaseEnterMessage: 'Please enter your message',
+	submit: 'Submit',
 
 	// Toast messages
 	videoUrlNotExist: 'Video URL does not exist',
@@ -14,5 +30,7 @@ export const lang = {
 	pleaseFillMessage: 'Please fill in the message content',
 	submitSuccess: 'Submitted successfully',
 	submitFailed: 'Submission failed, please try again',
+	copySuccess: 'Copied successfully',
+	copyFailed: 'Copy failed',
 
 }

lang/en-us/empty/index.js

@@ -0,0 +1,3 @@
+export const lang = {
+	title: ''
+};

lang/en-us/form/formdata.js

@@ -3,6 +3,7 @@ export const lang = {
 	// Form page - formdata
 	form: {
 		formdata: {
+			title: 'Form Details',
 			// Empty state messages
 			submitSuccess: 'Submitted successfully',
 			noFormInfo: 'Form information not available',

lang/en-us/index/diy.js

@@ -0,0 +1,3 @@
+export const lang = {
+	title: ''
+};

lang/en-us/login/find.js

@@ -1,4 +1,8 @@
 export const lang = {
+	title: 'Find Password',
+	accountPlaceholder: 'Please enter mobile number',
+	captchaPlaceholder: 'Please enter verification code',
+	next: 'Next',
 	// Find Password
 	find: {
 		// Step titles

lang/en-us/member/card_agreement.js

@@ -0,0 +1,3 @@
+export const lang = {
+	title: 'Member Card Agreement'
+};

lang/en-us/merch/detail.js

@@ -36,4 +36,9 @@ export const lang = {
 		reset: 'Reset',
 		confirm: 'Confirm',
 	},
+
+	modal: {
+		title: 'Tip',
+		merchantNotExist: 'Merchant does not exist',
+	},
 }

lang/en-us/order/refund_goods_select.js

@@ -0,0 +1,7 @@
+export const lang = {
+	title: 'Select Refund Items',
+	totalItems: '{count} items total',
+	next: 'Next',
+	selectGoods: 'Please select goods',
+	orderInfoNotFound: 'Order information not found'
+};

lang/en-us/pay/cashier.js

@@ -1,6 +1,7 @@
 export const lang = {
 	pay: {
 		cashier: {
+			title: 'Cashier',
 			// Pay button
 			confirmPay: 'Confirm Payment',
 			// Empty states

lang/en-us/pay/wx_pay.js

@@ -0,0 +1,10 @@
+export const lang = {
+	title: 'WeChat Pay',
+	openInBrowserTip: 'Tap the top-right menu and open in browser',
+	pay: {
+		wxPay: {
+			title: 'WeChat Pay',
+			openInBrowserTip: 'Tap the top-right menu and open in browser'
+		}
+	}
+};

lang/en-us/point/goods_list.js

@@ -1,4 +1,6 @@
 export const lang = {
+	title: 'Point Products',
+
 	// Search
 	searchPlaceholder: 'Please enter product keywords',
 

lang/en-us/seal/medium/search.js

@@ -4,6 +4,7 @@ export const lang = {
 	seal: {
 		medium: {
 			search: {
+				title: 'Medium Material Search',
 				// Search input placeholder
 				placeholder: 'Enter keywords to search',
 				// Search results title

lang/en-us/webview/webview.js

@@ -0,0 +1,3 @@
+export const lang = {
+	title: ''
+};

lang/zh-cn/contact/contact.js

@@ -1,11 +1,27 @@
 export const lang = {
+	title: '电子名片',
 
 	// 区块标题
 	enterpriseFiles: '企业文件',
 	enterpriseVideos: '企业视频',
+	onlineMessage: '在线留言',
+	exclusiveCustomerService: '专属客服',
 
 	// 分享
 	contactUs: '联系我们',
+	share: '分享',
+	call: '拨打',
+	copy: '复制',
+	oneClickNavigation: '一键导航',
+
+	// 留言表单
+	name: '姓名',
+	pleaseEnterName: '请输入姓名',
+	contactInfo: '联系方式',
+	pleaseEnterMobile: '请输入手机号',
+	messageContent: '留言内容',
+	pleaseEnterMessage: '请输入留言内容',
+	submit: '提交',
 
 	// 提示信息
 	videoUrlNotExist: '视频地址不存在',
@@ -14,5 +30,7 @@ export const lang = {
 	pleaseFillMessage: '请填写留言内容',
 	submitSuccess: '提交成功',
 	submitFailed: '提交失败，请重试',
+	copySuccess: '复制成功',
+	copyFailed: '复制失败',
 
 }

lang/zh-cn/empty/index.js

@@ -0,0 +1,3 @@
+export const lang = {
+	title: ''
+};

lang/zh-cn/form/formdata.js

@@ -3,6 +3,7 @@ export const lang = {
 	// 表单页面 - formdata
 	form: {
 		formdata: {
+			title: '表单详情',
 			// 空状态提示
 			submitSuccess: '提交成功',
 			noFormInfo: '未获取到表单信息',

lang/zh-cn/index/diy.js

@@ -0,0 +1,3 @@
+export const lang = {
+	title: ''
+};

lang/zh-cn/login/find.js

@@ -1,4 +1,8 @@
 export const lang = {
+	title: '找回密码',
+	accountPlaceholder: '请输入手机号',
+	captchaPlaceholder: '请输入验证码',
+	next: '下一步',
 	// 找回密码
 	find: {
 		// 步骤标题

lang/zh-cn/member/card_agreement.js

@@ -0,0 +1,3 @@
+export const lang = {
+	title: '会员卡协议'
+};

lang/zh-cn/merch/detail.js

@@ -36,4 +36,9 @@ export const lang = {
 		reset: '重置',
 		confirm: '确定',
 	},
+
+	modal: {
+		title: '提示',
+		merchantNotExist: '商家不存在',
+	},
 }

lang/zh-cn/order/refund_goods_select.js

@@ -0,0 +1,7 @@
+export const lang = {
+	title: '选择退款商品',
+	totalItems: '共{count}件商品',
+	next: '下一步',
+	selectGoods: '请选择商品',
+	orderInfoNotFound: '未查找到订单信息'
+};

lang/zh-cn/pay/cashier.js

@@ -1,6 +1,7 @@
 export const lang = {
 	pay: {
 		cashier: {
+			title: '收银台',
 			// 支付按钮
 			confirmPay: '确认支付',
 			// 空状态

lang/zh-cn/pay/wx_pay.js

@@ -0,0 +1,10 @@
+export const lang = {
+	title: '微信支付',
+	openInBrowserTip: '点击右上角跳转到浏览器打开',
+	pay: {
+		wxPay: {
+			title: '微信支付',
+			openInBrowserTip: '点击右上角跳转到浏览器打开'
+		}
+	}
+};

lang/zh-cn/point/goods_list.js

@@ -1,4 +1,6 @@
 export const lang = {
+	title: '积分商品',
+
 	// 搜索
 	searchPlaceholder: '请输入商品关键词',
 

lang/zh-cn/seal/medium/search.js

@@ -4,6 +4,7 @@ export const lang = {
 	seal: {
 		medium: {
 			search: {
+				title: '介质材料搜索',
 				// 搜索框占位符
 				placeholder: '请输入关键词搜索',
 				// 搜索结果标题

lang/zh-cn/webview/webview.js

@@ -0,0 +1,3 @@
+export const lang = {
+	title: ''
+};

pages_tool/order/refund_goods_select.vue

@@ -1,7 +1,7 @@
 <template>
 	<view class="goods-select" :style="themeColor">
 		<view class="top">
-			共<text class="color-base-text">{{refund_data.length}}</text>件商品
+			{{ $lang('totalItems', { count: refund_data.length }) }}
 		</view>
 		
 		<view class="body">
@@ -24,8 +24,8 @@
 				<text v-else class="iconfont icon-yuan_checkbox"></text> -->
 			</view>
 			
-			<view v-if="nexthover" class="next" @click="next">下一步</view>
-			<view v-else class="next nexthover">请选择商品</view>
+			<view v-if="nexthover" class="next" @click="next">{{ $lang('next') }}</view>
+			<view v-else class="next nexthover">{{ $lang('selectGoods') }}</view>
 		</view>
 		
 		<!-- <loading-cover ref="loadingCover"></loading-cover> -->
@@ -50,7 +50,7 @@
 				this.getGoodsInfo()
 			} else{
 				uni.showToast({
-					title:'未查找到订单信息',
+					title: this.$lang('orderInfoNotFound'),
 					icon:'none'
 				})
 				setTimeout(()=>{

pages_tool/pay/wx_pay.vue

@@ -3,7 +3,7 @@
 		<view class="mask-img">
 			<image :src="$util.img('public/uniapp/pay/invite_friends_share.png')" mode="aspectFit" show-menu-by-longpress></image>
 		</view>
-		<view class="mask-word">点击右上角跳转到浏览器打开</view>
+		<view class="mask-word">{{ $lang('pay.wxPay.openInBrowserTip') }}</view>
 	</view>
 </template>
 <script>