diff --git a/blade-service/blade-transport/src/main/java/org/springblade/transport/support/hcs/HcsAttachmentSupport.java b/blade-service/blade-transport/src/main/java/org/springblade/transport/support/hcs/HcsAttachmentSupport.java
new file mode 100644
index 00000000..e505f910
--- /dev/null
+++ b/blade-service/blade-transport/src/main/java/org/springblade/transport/support/hcs/HcsAttachmentSupport.java
@@ -0,0 +1,290 @@
+/**
+ * BladeX Commercial License Agreement
+ * Copyright (c) 2018-2099, https://bladex.cn. All rights reserved.
+ *
+ * Use of this software is governed by the Commercial License Agreement
+ * obtained after purchasing a license from BladeX.
+ *
+ * 1. This software is for development use only under a valid license
+ * from BladeX.
+ *
+ * 2. Redistribution of this software's source code to any third party
+ * without a commercial license is strictly prohibited.
+ *
+ * 3. Licensees may copyright their own code but cannot use segments
+ * from this software for such purposes. Copyright of this software
+ * remains with BladeX.
+ *
+ * Using this software signifies agreement to this License, and the software
+ * must not be used for illegal purposes.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY. The author is
+ * not liable for any claims arising from secondary or illegal development.
+ *
+ * Author: Chill Zhuang (bladejava@qq.com)
+ */
+package org.springblade.transport.support.hcs;
+
+import cn.hutool.http.HttpUtil;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springblade.core.redis.cache.BladeRedis;
+import org.springblade.core.tool.jackson.JsonUtil;
+import org.springblade.core.tool.utils.StringUtil;
+import org.springblade.hcs.config.HcsProperties;
+import org.springblade.hcs.constant.HcsConstant;
+import org.springblade.hcs.dto.HcsAttachmentVO;
+import org.springblade.hcs.dto.HcsResult;
+import org.springblade.hcs.exception.HcsException;
+import org.springblade.hcs.feign.IHcsClient;
+import org.springblade.transport.constant.HcsSyncConstant;
+import org.springframework.http.MediaType;
+import org.springframework.stereotype.Component;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.time.Duration;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+
+/**
+ * HCS 附件转传支撑组件（C103-2 multipart 上传，设计文档 §6）
+ *
+ * 流程：解析单据附件 JSON 元素（去重键照 ContractManage#attachmentKey 惯例）→
+ * 按元数据 URL 从文件服务拉取流（基址可配 attachment.file-download-base）→
+ * C103-2 上传取得合规附件ID → Redis 映射缓存（blade:third:hcs:att:{attachmentKey}，TTL 7 天），
+ * 未命中重传（重复上传仅浪费存储，无业务风险，故不做持久化映射表）。
+ * 任一附件转传失败 → 抛出异常由整单推送失败进补偿重试。
+ *
+ * TODO 待联调确认（§9-U8）：v4 的 C103-1 入参未定义附件字段，合同附件向 HCS 的挂载方式待合规方确认，
+ * 本组件先建设通用转传能力并将合规附件ID 缓存备用，确认后按其要求挂载。
+ *
+ * @author Chill
+ */
+@Slf4j
+@Component
+@RequiredArgsConstructor
+public class HcsAttachmentSupport {
+
+ /**
+ * 附件元数据去重键候选字段（照 ContractManage#attachmentKey 既有惯例）
+ */
+ private static final List KEY_FIELDS = List.of("url", "link", "fileUrl", "downloadUrl", "uid", "originalName", "name");
+
+ private final IHcsClient hcsClient;
+ private final HcsProperties hcsProperties;
+ private final BladeRedis bladeRedis;
+
+ /**
+ * 解析单据附件 JSON 并转传，返回合规附件ID 列表（保持行序）
+ *
+ * @param attachmentsJson 附件元数据 JSON 数组
+ * @param operatorLoginName 操作人登录名（C103-2 fdLoginName）
+ * @return 合规附件ID 列表
+ */
+ public List transferAttachments(String attachmentsJson, String operatorLoginName) {
+ if (StringUtil.isBlank(attachmentsJson)) {
+ return List.of();
+ }
+ List> attachments = parseJsonArray(attachmentsJson);
+ List attachmentFdIds = new ArrayList<>();
+ for (Map attachment : attachments) {
+ attachmentFdIds.add(transferOne(attachment, operatorLoginName));
+ }
+ return attachmentFdIds;
+ }
+
+ /**
+ * 解析合同主文件 JSON（仅 approved=true 的文件）与其它附件 JSON 并转传
+ *
+ * @param contractFileJson 合同主文件 JSON
+ * @param attachmentsJson 其它附件 JSON
+ * @param operatorLoginName 操作人登录名
+ * @return 合规附件ID 列表
+ */
+ public List transferContractAttachments(String contractFileJson, String attachmentsJson, String operatorLoginName) {
+ List> attachments = new ArrayList<>();
+ for (Map file : parseJsonArray(contractFileJson)) {
+ if (isApproved(file)) {
+ attachments.add(file);
+ }
+ }
+ attachments.addAll(parseJsonArray(attachmentsJson));
+ List attachmentFdIds = new ArrayList<>();
+ for (Map attachment : attachments) {
+ attachmentFdIds.add(transferOne(attachment, operatorLoginName));
+ }
+ return attachmentFdIds;
+ }
+
+ /**
+ * 转传单个附件：映射缓存命中直接返回，未命中下载上传后写缓存
+ */
+ private String transferOne(Map attachment, String operatorLoginName) {
+ String attachmentKey = attachmentKey(attachment);
+ String cacheKey = HcsSyncConstant.ATTACHMENT_CACHE_KEY_PREFIX + attachmentKey;
+ String cachedFdId = bladeRedis.get(cacheKey);
+ if (StringUtil.isNotBlank(cachedFdId)) {
+ return cachedFdId;
+ }
+ String url = resolveUrl(attachment);
+ if (StringUtil.isBlank(url)) {
+ throw new HcsException("HCS附件转传失败，附件元数据缺少下载地址（attachmentKey=" + attachmentKey + "）");
+ }
+ byte[] fileBytes = downloadFile(url);
+ String fileName = resolveFileName(attachment, url);
+ log.info("HCS附件转传开始：{}，大小 {} 字节", fileName, fileBytes.length);
+ HcsResult result = hcsClient.uploadAttachment(
+ new InMemoryMultipartFile("fdFile", fileName, fileBytes), "false", operatorLoginName);
+ if (result == null || !result.isSuccess() || result.getData() == null || StringUtil.isBlank(result.getData().getFdId())) {
+ log.error("HCS附件转传失败响应：{}", result == null ? "无响应" : String.format("code=%s, msg=%s, traceId=%s",
+ result.getCode(), result.getMsg(), result.getTraceId()));
+ throw new HcsException("HCS附件转传失败：" + (result == null ? "响应为空" : result.getMsg()));
+ }
+ String attachmentFdId = result.getData().getFdId();
+ bladeRedis.getValueOps().setIfAbsent(cacheKey, attachmentFdId, Duration.ofDays(HcsSyncConstant.ATTACHMENT_CACHE_TTL_DAYS));
+ log.info("HCS附件转传完成：{} → 合规附件ID {}", fileName, attachmentFdId);
+ return attachmentFdId;
+ }
+
+ /**
+ * 按元数据 URL 从文件服务拉取流：完整 URL 直接下载，相对路径拼可配基址
+ */
+ private byte[] downloadFile(String url) {
+ String target = url;
+ if (!url.startsWith("http://") && !url.startsWith("https://")) {
+ String base = hcsProperties.getAttachment().getFileDownloadBase();
+ if (StringUtil.isBlank(base)) {
+ throw new HcsException("HCS附件转传失败，文件服务下载基址未配置（thirdParty.hcs.attachment.file-download-base）");
+ }
+ target = base + url;
+ }
+ try {
+ return HttpUtil.downloadBytes(target);
+ } catch (Exception exception) {
+ log.error("HCS附件转传下载失败：{}", target, exception);
+ throw new HcsException("HCS附件转传下载失败：" + target, exception);
+ }
+ }
+
+ /**
+ * 附件元数据去重键（url|link|fileUrl|downloadUrl|uid|originalName|name 依次取首个非空）
+ */
+ private String attachmentKey(Map attachment) {
+ for (String field : KEY_FIELDS) {
+ Object value = attachment.get(field);
+ if (value != null && !String.valueOf(value).isBlank()) {
+ return field + ":" + value;
+ }
+ }
+ return String.valueOf(attachment);
+ }
+
+ /**
+ * 提取附件下载地址
+ */
+ private String resolveUrl(Map attachment) {
+ for (String field : List.of("url", "link", "fileUrl", "downloadUrl", "path")) {
+ Object value = attachment.get(field);
+ if (value != null && !String.valueOf(value).isBlank()) {
+ return String.valueOf(value).trim();
+ }
+ }
+ return null;
+ }
+
+ /**
+ * 提取附件文件名（name/originalName 优先，缺失时取 URL 末段）
+ */
+ private String resolveFileName(Map attachment, String url) {
+ for (String field : List.of("name", "originalName", "fileName")) {
+ Object value = attachment.get(field);
+ if (value != null && !String.valueOf(value).isBlank()) {
+ return String.valueOf(value);
+ }
+ }
+ String lastSegment = url.substring(url.lastIndexOf('/') + 1);
+ return StringUtil.isBlank(lastSegment) ? "hcs-attachment" : lastSegment;
+ }
+
+ /**
+ * 主文件审批标记判定（照 ContractManage#isAttachmentApproved 惯例）
+ */
+ private boolean isApproved(Map attachment) {
+ Object approved = attachment.get("approved");
+ if (approved == null) {
+ return false;
+ }
+ return Boolean.TRUE.equals(approved) || Objects.equals(approved, 1)
+ || "1".equals(String.valueOf(approved)) || "true".equalsIgnoreCase(String.valueOf(approved));
+ }
+
+ /**
+ * 解析 JSON 数组（照 ContractManage#parseJsonArray 惯例，异常返回空列表）
+ */
+ private List> parseJsonArray(String json) {
+ if (StringUtil.isBlank(json)) {
+ return List.of();
+ }
+ try {
+ return JsonUtil.parse(json, List.class);
+ } catch (Exception exception) {
+ log.warn("HCS附件元数据解析失败，按无附件处理：{}", json);
+ return List.of();
+ }
+ }
+
+ /**
+ * 内存 MultipartFile（下载字节流转传 C103-2 用）
+ */
+ private record InMemoryMultipartFile(String name, String originalFilename, byte[] bytes) implements MultipartFile {
+
+ @Override
+ public String getName() {
+ return name;
+ }
+
+ @Override
+ public String getOriginalFilename() {
+ return originalFilename;
+ }
+
+ @Override
+ public String getContentType() {
+ return MediaType.APPLICATION_OCTET_STREAM_VALUE;
+ }
+
+ @Override
+ public boolean isEmpty() {
+ return bytes == null || bytes.length == 0;
+ }
+
+ @Override
+ public long getSize() {
+ return bytes == null ? 0 : bytes.length;
+ }
+
+ @Override
+ public byte[] getBytes() {
+ return bytes;
+ }
+
+ @Override
+ public InputStream getInputStream() {
+ return new ByteArrayInputStream(bytes);
+ }
+
+ @Override
+ public void transferTo(File dest) throws IOException {
+ try (FileOutputStream outputStream = new FileOutputStream(dest)) {
+ outputStream.write(bytes);
+ }
+ }
+ }
+}
diff --git a/blade-service/blade-transport/src/main/java/org/springblade/transport/support/hcs/HcsMasterDataSupport.java b/blade-service/blade-transport/src/main/java/org/springblade/transport/support/hcs/HcsMasterDataSupport.java
new file mode 100644
index 00000000..d09c6836
--- /dev/null
+++ b/blade-service/blade-transport/src/main/java/org/springblade/transport/support/hcs/HcsMasterDataSupport.java
@@ -0,0 +1,206 @@
+/**
+ * BladeX Commercial License Agreement
+ * Copyright (c) 2018-2099, https://bladex.cn. All rights reserved.
+ *
+ * Use of this software is governed by the Commercial License Agreement
+ * obtained after purchasing a license from BladeX.
+ *
+ * 1. This software is for development use only under a valid license
+ * from BladeX.
+ *
+ * 2. Redistribution of this software's source code to any third party
+ * without a commercial license is strictly prohibited.
+ *
+ * 3. Licensees may copyright their own code but cannot use segments
+ * from this software for such purposes. Copyright of this software
+ * remains with BladeX.
+ *
+ * Using this software signifies agreement to this License, and the software
+ * must not be used for illegal purposes.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY. The author is
+ * not liable for any claims arising from secondary or illegal development.
+ *
+ * Author: Chill Zhuang (bladejava@qq.com)
+ */
+package org.springblade.transport.support.hcs;
+
+import cn.hutool.json.JSONUtil;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springblade.core.redis.cache.BladeRedis;
+import org.springblade.core.tool.utils.StringUtil;
+import org.springblade.hcs.config.HcsProperties;
+import org.springblade.hcs.dto.HcsCategoryVO;
+import org.springblade.hcs.dto.HcsCurrencyVO;
+import org.springblade.hcs.dto.HcsPageQueryDTO;
+import org.springblade.hcs.dto.HcsPageVO;
+import org.springblade.hcs.dto.HcsTemplateVO;
+import org.springblade.hcs.exception.HcsException;
+import org.springblade.hcs.feign.IHcsClient;
+import org.springblade.hcs.util.HcsPageUtil;
+import org.springblade.transport.constant.HcsSyncConstant;
+import org.springframework.stereotype.Component;
+
+import java.time.Duration;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * HCS 主数据缓存支撑组件（C103-6 模板 / C103-7 分类 / C103-12 币种，设计文档 §5.9）
+ *
+ * 启动/首次使用时拉取并缓存（Redis，照 BFI token 缓存惯例，TTL 可配 master-data.ttl-minutes）：
+ * 模板列表供 template-mapping 校验，币种表供 currency-id-mapping 取值。
+ * 提供管理端"刷新缓存"入口（HcsSyncController）。
+ *
+ * @author Chill
+ */
+@Slf4j
+@Component
+@RequiredArgsConstructor
+public class HcsMasterDataSupport {
+
+ /**
+ * 主数据分页拉取页大小
+ */
+ private static final int PAGE_SIZE = 200;
+
+ private final IHcsClient hcsClient;
+ private final HcsProperties hcsProperties;
+ private final BladeRedis bladeRedis;
+
+ /**
+ * 获取合同模板列表（缓存优先，未命中全量拉取）
+ */
+ public List getTemplates() {
+ List cached = readCache(HcsSyncConstant.MASTER_CACHE_TEMPLATES, HcsTemplateVO.class);
+ if (cached != null) {
+ return cached;
+ }
+ return loadTemplates();
+ }
+
+ /**
+ * 获取合同分类列表（缓存优先，未命中全量拉取）
+ */
+ public List getCategories() {
+ List cached = readCache(HcsSyncConstant.MASTER_CACHE_CATEGORIES, HcsCategoryVO.class);
+ if (cached != null) {
+ return cached;
+ }
+ return loadCategories();
+ }
+
+ /**
+ * 获取币种列表（缓存优先，未命中全量拉取）
+ */
+ public List getCurrencies() {
+ List cached = readCache(HcsSyncConstant.MASTER_CACHE_CURRENCIES, HcsCurrencyVO.class);
+ if (cached != null) {
+ return cached;
+ }
+ return loadCurrencies();
+ }
+
+ /**
+ * 强制刷新三类主数据缓存（管理端入口），并对 template-mapping 做存在性校验
+ *
+ * @return 刷新结果汇总
+ */
+ public String refreshAll() {
+ int templateCount = loadTemplates().size();
+ int categoryCount = loadCategories().size();
+ int currencyCount = loadCurrencies().size();
+ validateTemplateMapping();
+ String summary = String.format("HCS主数据缓存已刷新：模板 %d 条、分类 %d 条、币种 %d 条", templateCount, categoryCount, currencyCount);
+ log.info(summary);
+ return summary;
+ }
+
+ /**
+ * 全量拉取合同模板并缓存
+ */
+ private List loadTemplates() {
+ HcsPageQueryDTO query = baseQuery();
+ List rows = HcsPageUtil.queryAllPages(offset -> {
+ query.setOffset(offset);
+ return hcsClient.templateList(query).getData();
+ });
+ writeCache(HcsSyncConstant.MASTER_CACHE_TEMPLATES, rows);
+ log.info("HCS合同模板列表已缓存，共 {} 条", rows.size());
+ return rows;
+ }
+
+ /**
+ * 全量拉取合同分类并缓存
+ */
+ private List loadCategories() {
+ HcsPageQueryDTO query = baseQuery();
+ List rows = HcsPageUtil.queryAllPages(offset -> {
+ query.setOffset(offset);
+ return hcsClient.categoryList(query).getData();
+ });
+ writeCache(HcsSyncConstant.MASTER_CACHE_CATEGORIES, rows);
+ log.info("HCS合同分类列表已缓存，共 {} 条", rows.size());
+ return rows;
+ }
+
+ /**
+ * 全量拉取币种并缓存
+ */
+ private List loadCurrencies() {
+ HcsPageQueryDTO query = baseQuery();
+ List rows = HcsPageUtil.queryAllPages(offset -> {
+ query.setOffset(offset);
+ return hcsClient.currencyList(query).getData();
+ });
+ writeCache(HcsSyncConstant.MASTER_CACHE_CURRENCIES, rows);
+ log.info("HCS币种列表已缓存，共 {} 条", rows.size());
+ return rows;
+ }
+
+ /**
+ * 校验 contract.template-mapping 中的模板ID是否存在于 HCS 模板列表（§9-U7，仅告警不阻断）
+ */
+ private void validateTemplateMapping() {
+ Map mapping = hcsProperties.getContract().getTemplateMapping();
+ if (mapping.isEmpty()) {
+ log.warn("HCS合同模板映射（thirdParty.hcs.contract.template-mapping）未配置，合同推送将失败（§9-U7 待合规方提供模板ID清单）");
+ return;
+ }
+ List templateIds = getTemplates().stream().map(HcsTemplateVO::getFdId).toList();
+ mapping.forEach((category, templateId) -> {
+ if (StringUtil.isNotBlank(templateId) && !templateIds.contains(templateId)) {
+ log.warn("HCS合同模板映射校验告警：合同类别 [{}] 映射的模板ID [{}] 不在合规模板列表中", category, templateId);
+ }
+ });
+ }
+
+ /**
+ * 分页查询基础参数（columns 必填）
+ */
+ private HcsPageQueryDTO baseQuery() {
+ HcsPageQueryDTO query = new HcsPageQueryDTO();
+ query.setPageSize(PAGE_SIZE);
+ return query;
+ }
+
+ /**
+ * 读缓存（JSON 字符串反序列化）
+ */
+ private List readCache(String cacheKey, Class itemType) {
+ String json = bladeRedis.get(cacheKey);
+ if (StringUtil.isBlank(json)) {
+ return null;
+ }
+ return JSONUtil.toList(json, itemType);
+ }
+
+ /**
+ * 写缓存（JSON 字符串 + 可配 TTL）
+ */
+ private void writeCache(String cacheKey, List rows) {
+ bladeRedis.getValueOps().setIfAbsent(cacheKey, JSONUtil.toJsonStr(rows),
+ Duration.ofMinutes(hcsProperties.getMasterData().getTtlMinutes()));
+ }
+}
diff --git a/blade-third-party-api/blade-hcs-api/src/main/java/org/springblade/hcs/config/HcsProperties.java b/blade-third-party-api/blade-hcs-api/src/main/java/org/springblade/hcs/config/HcsProperties.java
index a753f6b4..93f2fefb 100644
--- a/blade-third-party-api/blade-hcs-api/src/main/java/org/springblade/hcs/config/HcsProperties.java
+++ b/blade-third-party-api/blade-hcs-api/src/main/java/org/springblade/hcs/config/HcsProperties.java
@@ -112,6 +112,10 @@ public class HcsProperties {
* 附件转传（C103-2）配置
*/
private Attachment attachment = new Attachment();
+ /**
+ * 主数据缓存（C103-6/7/12）配置
+ */
+ private MasterData masterData = new MasterData();
@Data
public static class Push {
@@ -252,4 +256,12 @@ public class HcsProperties {
*/
private String fileDownloadBase = "";
}
+
+ @Data
+ public static class MasterData {
+ /**
+ * 模板/分类/币种列表缓存时长（分钟），启动/首次使用时拉取并缓存（设计文档 §5.9）
+ */
+ private int ttlMinutes = 120;
+ }
}
diff --git a/doc/nacos/third-party-api.yaml b/doc/nacos/third-party-api.yaml
index 2345de68..db3628d9 100644
--- a/doc/nacos/third-party-api.yaml
+++ b/doc/nacos/third-party-api.yaml
@@ -144,3 +144,7 @@ thirdParty:
transfer-enabled: ${HCS_ATTACHMENT_TRANSFER_ENABLED:true}
# TMS 文件服务下载基址（拉取附件流用）
file-download-base: ${HCS_ATTACHMENT_FILE_DOWNLOAD_BASE:}
+ # 主数据缓存（C103-6/7/12，启动/首次使用时拉取并缓存）
+ master-data:
+ # 缓存时长（分钟）
+ ttl-minutes: ${HCS_MASTER_DATA_TTL_MINUTES:120}