diff --git a/mysql_preview_server.py b/mysql_preview_server.py
index 5d1256e..f3a3bd9 100644
--- a/mysql_preview_server.py
+++ b/mysql_preview_server.py
@@ -1842,10 +1842,12 @@ def _decorate_linked_code_names(linked_codes, conn=None):
     try:
         sales_code = _as_text(payload.get('salesCode')).strip()
         design_code = _as_text(payload.get('designCode')).strip()
-        if sales_code and not _as_text(payload.get('salesName')).strip():
-            payload['salesName'] = get_project_alias_name(conn, sales_code, 'sales')
-        if design_code and not _as_text(payload.get('designName')).strip():
-            payload['designName'] = get_project_alias_name(conn, design_code, 'design')
+        if sales_code:
+            # 연계코드는 페이지에서 항상 "약칭(코드번호)" 형태로 보여야 한다.
+            # 원본 REPORT_5가 긴 정식명을 주더라도 ERP 프로젝트 약칭 캐시를 우선 사용한다.
+            payload['salesName'] = get_project_alias_name(conn, sales_code, 'sales') or _as_text(payload.get('salesName')).strip()
+        if design_code:
+            payload['designName'] = get_project_alias_name(conn, design_code, 'design') or _as_text(payload.get('designName')).strip()
         return payload
     finally:
         if close_conn:
diff --git a/project-codes.html b/project-codes.html
index 6019e57..82a0380 100644
--- a/project-codes.html
+++ b/project-codes.html
@@ -711,9 +711,19 @@
       return LINKED_CODE_BY_BUSINESS[key] || { salesCode: '', designCode: '' };
     }
 
-    function formatLinkedCodeLabel(code, name) {
-      const cleanCode = String(code || '').trim();
+    function compactLinkedCodeName(name, fallbackName) {
       const cleanName = String(name || '').trim();
+      const cleanFallback = String(fallbackName || '').trim();
+      if (!cleanName) return cleanFallback;
+      if (cleanFallback && (cleanName.length > 24 || cleanName.includes('[') || cleanName.includes('민간투자사업'))) {
+        return cleanFallback;
+      }
+      return cleanName;
+    }
+
+    function formatLinkedCodeLabel(code, name, fallbackName = '') {
+      const cleanCode = String(code || '').trim();
+      const cleanName = compactLinkedCodeName(name, fallbackName);
       if (!cleanCode) return '-';
       if (!cleanName) return cleanCode;
       return `${cleanName}(${cleanCode})`;
@@ -915,8 +925,8 @@
     function renderDetailRows(detail) {
       const linkedCodes = resolveLinkedCodes(detail);
       const linkedCodeText = [
-        formatLinkedCodeLabel(linkedCodes.salesCode, linkedCodes.salesName),
-        formatLinkedCodeLabel(linkedCodes.designCode, linkedCodes.designName),
+        formatLinkedCodeLabel(linkedCodes.salesCode, linkedCodes.salesName, detail.projectName),
+        formatLinkedCodeLabel(linkedCodes.designCode, linkedCodes.designName, detail.projectName),
       ].join(' · ');
       const rows = [
         ['사업코드', detail.businessCode],