diff --git a/mysql_preview_server.py b/mysql_preview_server.py
index 20b0e9b..d62dbbb 100644
--- a/mysql_preview_server.py
+++ b/mysql_preview_server.py
@@ -787,13 +787,22 @@ def get_erp_project_code_cache(conn, source_page='const'):
         {
             'projectCode': row[0],
             'projectName': row[1],
-            'contractType': row[2] or '',
-            'applicationType': row[3] or '',
+            'businessCode': row[2] or '',
+            'siteLocation': row[3] or '',
+            'clientName': row[4] or '',
+            'finalContractAmountText': row[5] or '',
+            'contractType': row[6] or '',
+            'applicationType': row[7] or '',
+            'syncedAt': row[8] or '',
         }
         for row in conn.execute(
             '''
             SELECT p.projectCode,
                    p.projectName,
+                   COALESCE(d.businessCode, '') AS businessCode,
+                   COALESCE(d.siteLocation, '') AS siteLocation,
+                   COALESCE(d.clientName, '') AS clientName,
+                   COALESCE(d.finalContractAmountText, '') AS finalContractAmountText,
                    COALESCE(d.contractType, '') AS contractType,
                    COALESCE((
                        SELECT GROUP_CONCAT(applicationType, '||')
@@ -805,7 +814,8 @@ def get_erp_project_code_cache(conn, source_page='const'):
                              AND IFNULL(b.applicationType, '') <> ''
                            ORDER BY b.applicationType
                        )
-                   ), '') AS applicationType
+                   ), '') AS applicationType,
+                   COALESCE(d.syncedAt, '') AS detailSyncedAt
             FROM erp_project_code_cache p
             LEFT JOIN erp_contract_detail_cache d
               ON d.sourcePage = p.sourcePage
diff --git a/project-codes.html b/project-codes.html
index 1199145..57c3d0e 100644
--- a/project-codes.html
+++ b/project-codes.html
@@ -833,7 +833,11 @@
 
       detailTitle.textContent = `${detail.projectName || '-'} [${detail.projectCode}]`;
       detailMeta.textContent = `사업코드 ${detail.businessCode || '-'} · 마지막 동기화 ${detail.syncedAt || '-'}`;
+      renderDetailRows(detail);
+      renderMergedBridgeRows(detail.scaleRows || [], state.bridgeOverviews || [], state.budgetPlan);
+    }
 
+    function renderDetailRows(detail) {
       const rows = [
         ['사업코드', detail.businessCode],
         ['약칭', detail.projectName],
@@ -856,8 +860,6 @@
           <td>${typeof value === 'string' && value.includes('<table') ? value : escapeHtml(value || '-')}</td>
         </tr>
       `).join('');
-
-      renderMergedBridgeRows(detail.scaleRows || [], state.bridgeOverviews || [], state.budgetPlan);
     }
 
     function normalizeBridgeName(value) {
@@ -1168,12 +1170,45 @@
 
         if (!detailResponse.ok) {
           if (!refresh && detailResponse.status === 404) {
-            state.detail = null;
             state.bridgeOverviews = overviewResponse.ok ? (Array.isArray(overviewData.overviews) ? overviewData.overviews : []) : [];
             state.budgetPlan = budgetPlanResponse.ok ? (budgetPlanData.plan || null) : null;
             detailTitle.textContent = `${projectName || '-'} [${projectCode}]`;
-            detailMeta.textContent = 'DB 캐시에 계약정보가 없습니다. 새 정보 다시 가져오기를 누르면 ERP에서 수집합니다.';
-            detailBody.innerHTML = '<tr><td colspan="2" class="empty">저장된 계약정보가 없습니다. 최신 정보가 필요하면 오른쪽 상단 버튼을 눌러주세요.</td></tr>';
+            detailMeta.textContent = 'DB 캐시에 계약정보가 없어 ERP에서 기본 계약정보를 가져오는 중입니다.';
+            try {
+              const freshDetailResponse = await fetch(
+                `/api/erp-contract-detail?page=const&projectCode=${encodeURIComponent(projectCode)}&projectName=${encodeURIComponent(projectName || '')}&refresh=1`,
+                { cache: 'no-store' }
+              );
+              const freshDetailData = await freshDetailResponse.json();
+              if (freshDetailResponse.ok) {
+                state.detail = freshDetailData.detail || null;
+                if (state.selectedRow && state.detail) {
+                  state.selectedRow.businessCode = state.detail.businessCode || state.selectedRow.businessCode || '';
+                  state.selectedRow.siteLocation = state.detail.siteLocation || state.selectedRow.siteLocation || '';
+                  state.selectedRow.clientName = state.detail.clientName || state.selectedRow.clientName || '';
+                  state.selectedRow.finalContractAmountText = state.detail.finalContractAmountText || state.selectedRow.finalContractAmountText || '';
+                  state.selectedRow.contractType = state.detail.contractType || state.selectedRow.contractType || '';
+                  state.selectedRow.syncedAt = state.detail.syncedAt || state.selectedRow.syncedAt || '';
+                }
+                renderDetail(state.detail);
+                return;
+              }
+            } catch (error) {
+            }
+
+            state.detail = null;
+            const selectedSummary = state.selectedRow || {};
+            detailMeta.textContent = '기본 계약정보를 아직 가져오지 않았습니다. 새 정보 다시 가져오기를 누르면 ERP에서 수집합니다.';
+            renderDetailRows({
+              businessCode: selectedSummary.businessCode || '',
+              projectName: projectName || selectedSummary.projectName || '',
+              projectCode,
+              siteLocation: selectedSummary.siteLocation || '',
+              clientName: selectedSummary.clientName || '',
+              finalContractAmountText: selectedSummary.finalContractAmountText || '',
+              contractType: selectedSummary.contractType || '',
+              syncedAt: selectedSummary.syncedAt || '',
+            });
             renderMergedBridgeRows([], state.bridgeOverviews || [], state.budgetPlan);
             return;
           }
@@ -1184,7 +1219,12 @@
         state.bridgeOverviews = Array.isArray(overviewData.overviews) ? overviewData.overviews : [];
         state.budgetPlan = budgetPlanResponse.ok ? (budgetPlanData.plan || null) : null;
         if (state.selectedRow && state.detail) {
+          state.selectedRow.businessCode = state.detail.businessCode || state.selectedRow.businessCode || '';
+          state.selectedRow.siteLocation = state.detail.siteLocation || state.selectedRow.siteLocation || '';
+          state.selectedRow.clientName = state.detail.clientName || state.selectedRow.clientName || '';
+          state.selectedRow.finalContractAmountText = state.detail.finalContractAmountText || state.selectedRow.finalContractAmountText || '';
           state.selectedRow.contractType = state.detail.contractType || state.selectedRow.contractType || '';
+          state.selectedRow.syncedAt = state.detail.syncedAt || state.selectedRow.syncedAt || '';
           state.selectedRow.applicationType = Array.from(new Set(
             state.bridgeOverviews.map((item) => String(item.applicationType || '').trim()).filter(Boolean)
           )).sort((a, b) => a.localeCompare(b, 'ko')).join('||') || state.selectedRow.applicationType || '';