diff --git a/src/views/contract/launch/components/ContractPartyPlaceholderModal.vue b/src/views/contract/launch/components/ContractPartyPlaceholderModal.vue
index 0b9773d..2f834c3 100644
--- a/src/views/contract/launch/components/ContractPartyPlaceholderModal.vue
+++ b/src/views/contract/launch/components/ContractPartyPlaceholderModal.vue
@@ -37,7 +37,7 @@
                 <div class="section-title-row counterparty-toolbar">
                   <div class="section-title">我方主体</div>
                   <a-button
-                    v-if="!isViewMode && !isSingleAgreementChecked"
+                    v-if="!isViewMode && !isOurPartyLocked"
                     type="link"
                     class="text-action-btn"
                     @click="handleAddOurParty"
@@ -46,7 +46,11 @@
                   </a-button>
                 </div>
                 <div class="party-empty-state" style="margin-bottom: 12px">
-                  {{ isSingleAgreementChecked ? "单方协议默认使用当前登录主体，且不可修改" : "当前登录主体必须包含在我方主体中" }}
+                  {{
+                    isSingleAgreementChecked
+                      ? "单方协议默认使用当前登录主体，且不可修改"
+                      : "当前登录主体必须包含在我方主体中"
+                  }}
                 </div>
 
                 <div
@@ -59,7 +63,7 @@
                       {{ party.displayName }}
                     </div>
                     <a-button
-                      v-if="!isViewMode && !isSingleAgreementChecked && ourParties.length > 1"
+                      v-if="!isViewMode && !isOurPartyLocked && ourParties.length > 1"
                       type="link"
                       danger
                       class="text-action-btn"
@@ -73,7 +77,7 @@
                       v-model:value="party.companyName"
                       :options="getPartyOptions(party.roleCode)"
                       show-search
-                      :disabled="isSingleAgreementChecked"
+                      :disabled="isViewMode || isOurPartyLocked"
                       :placeholder="`请选择${party.displayName}`"
                       :filter-option="filterPartnerOption"
                       @change="
@@ -83,6 +87,7 @@
                     />
                     <a-button
                       class="icon-btn"
+                      :disabled="isViewMode || isOurPartyLocked"
                       @click="showSearchTip(`${party.displayName}`)"
                     >
                       <SearchOutlined />
@@ -383,6 +388,7 @@
                   >
                     <a-button
                       size="small"
+                      :disabled="false"
                       @click="
                         downloadFile(
                           detailState.contractBodyFilePath,
@@ -418,6 +424,7 @@
                         v-for="item in detailState.contractGistFileList"
                         :key="item.uid || item.filePath"
                         size="small"
+                        :disabled="false"
                         @click="
                           downloadFile(
                             item.filePath,
@@ -457,6 +464,7 @@
                         v-for="item in detailState.authAttachmentList"
                         :key="item.uid || item.filePath"
                         size="small"
+                        :disabled="false"
                         @click="
                           downloadFile(
                             item.filePath,
@@ -493,6 +501,7 @@
                         v-for="item in detailState.otherAttachmentList"
                         :key="item.uid || item.filePath"
                         size="small"
+                        :disabled="false"
                         @click="
                           downloadFile(
                             item.filePath,
@@ -519,6 +528,7 @@
                   <a-space style="margin-top: 8px">
                     <a-button
                       size="small"
+                      :disabled="false"
                       @click="
                         downloadFile(
                           detailState.signedFilePath,
@@ -828,6 +838,7 @@
                       class="extra-check-item"
                     >
                       <a-checkbox
+                        :disabled="isViewMode"
                         v-model:checked="
                           detailState.extraAmounts[`${item.key}Enabled`]
                         "
@@ -842,6 +853,7 @@
                       :key="`${item.key}_input`"
                       v-model:value="detailState.extraAmounts[item.key]"
                       :disabled="
+                        isViewMode ||
                         !detailState.extraAmounts[`${item.key}Enabled`]
                       "
                       :min="0"
@@ -1041,31 +1053,7 @@ import {
   getOptionLabel,
 } from "../contractLaunchOptions.js";
 
-// ========================================================================
-// 以下为表单模型 + 字典 + 工具函数，直接内联在此文件中。
-// 接入后端时，保留这些函数，替换入参/出参为真实接口即可。
-// ========================================================================
-
-// ========== 合同方相关字典 ==========
-
-const companyTypeOptions = [
-  { label: "客户", value: "客户" },
-  { label: "供应商", value: "供应商" },
-  { label: "合作伙伴", value: "合作伙伴" },
-  { label: "客户及供应商", value: "客户及供应商" },
-  { label: "其他", value: "其他" },
-];
-
-const contractCompanyOptions = ref([
-  { label: "扬州宏富特种材料有限公司", value: "扬州宏富特种材料有限公司" },
-  { label: "宁波港船务货运代理有限公司", value: "宁波港船务货运代理有限公司" },
-  { label: "宁波浙港供应链科技有限公司", value: "宁波浙港供应链科技有限公司" },
-  { label: "上海远洋能源有限公司", value: "上海远洋能源有限公司" },
-  { label: "宁波保税区港航设备有限公司", value: "宁波保税区港航设备有限公司" },
-  { label: "浙江临港数智科技有限公司", value: "浙江临港数智科技有限公司" },
-  { label: "杭州智云实施服务有限公司", value: "杭州智云实施服务有限公司" },
-  { label: "浙港物流平台有限公司", value: "浙港物流平台有限公司" },
-]);
+const contractCompanyOptions = ref([]);
 
 // ========== 合同相关字典 ==========
 
@@ -1411,13 +1399,6 @@ function copyPartyState(input) {
     isThreePartyContract: source.isThreePartyContract,
   });
 }
-
-function getPartyByLocalId(list = [], localId) {
-  return (Array.isArray(list) ? list : []).find(
-    (item) => item.localId === localId,
-  );
-}
-
 /** 创建一条空的履行计划 */
 function createPerformancePlan() {
   return {
@@ -1628,51 +1609,16 @@ const authAttachmentUploadList = ref([]);
 const bodyConfigModalRef = ref(null);
 const currentSelfParty = ref(null);
 
-const companyProfileMap = {
-  扬州宏富特种材料有限公司: {
-    contactPhone: "13800000001",
-    registeredAddress: "江苏省扬州市邗江区江阳中路88号",
-    bankAccount: "622202100000000001",
-    bankName: "中国工商银行扬州分行",
-    contactName: "王经理",
-    legalRepresentative: "张三",
-    creditCode: "91321000MA1X111111",
-  },
-  宁波港船务货运代理有限公司: {
-    contactPhone: "15757460062",
-    registeredAddress: "宁波市北仑区明州西路188号",
-    bankAccount: "39011600192100006088",
-    bankName: "中国工商银行股份有限公司宁波市支行",
-    contactName: "周经理",
-    legalRepresentative: "李四",
-    creditCode: "91330201MA2ABCDE9X",
-  },
-  宁波浙港供应链科技有限公司: {
-    contactPhone: "13900000088",
-    registeredAddress: "宁波市江北区长兴路689号",
-    bankAccount: "621700000000000088",
-    bankName: "中国银行宁波分行",
-    contactName: "陈经理",
-    legalRepresentative: "陈总",
-    creditCode: "91330200MA2SUPPLY01",
-  },
-  上海远洋能源有限公司: {
-    contactPhone: "13600000015",
-    registeredAddress: "上海市浦东新区临港大道188号",
-    bankAccount: "621483000000000015",
-    bankName: "招商银行上海分行",
-    contactName: "吴经理",
-    legalRepresentative: "孙先生",
-    creditCode: "91310115MAOCEAN001",
-  },
-};
-
 const isViewMode = computed(() => modalMode.value === "view");
 
 const isSingleAgreementChecked = computed(
   () => String(detailState.value.isSingleAgreement || "0") === "1",
 );
 
+const isOurPartyLocked = computed(
+  () => isSingleAgreementChecked.value,
+);
+
 const ourParties = computed(
   () => detailState.value.partyState.ourPartyList || [],
 );
@@ -1928,29 +1874,12 @@ function handleCompanySelect(party, companyName, option = {}) {
     return;
   }
 
-  const profile = companyProfileMap[companyName];
-  if (!profile) {
-    party.companyName = companyName;
-    return;
-  }
-
-  Object.assign(party, {
-    companyName,
-    subjectCode: party.subjectCode || "",
-    contactPhone: party.contactPhone || profile.contactPhone,
-    registeredAddress: party.registeredAddress || profile.registeredAddress,
-    bankAccount: party.bankAccount || profile.bankAccount,
-    bankName: party.bankName || profile.bankName,
-    contactName: party.contactName || profile.contactName,
-    legalRepresentative:
-      party.legalRepresentative || profile.legalRepresentative,
-    creditCode: party.creditCode || profile.creditCode,
-    oppCharacter: party.oppCharacter || "1",
-  });
+  party.companyName = companyName;
+  refreshPartyDisplayMeta();
 }
 
 function handleAddOurParty() {
-  if (isSingleAgreementChecked.value) return;
+  if (isOurPartyLocked.value) return;
   detailState.value.partyState.ourPartyList =
     detailState.value.partyState.ourPartyList || [];
   detailState.value.partyState.ourPartyList.push(
@@ -1984,7 +1913,7 @@ function handleAddCounterparty() {
 }
 
 function handleRemoveOurParty(localId) {
-  if (isSingleAgreementChecked.value) return;
+  if (isOurPartyLocked.value) return;
   detailState.value.partyState.ourPartyList = (
     detailState.value.partyState.ourPartyList || []
   ).filter((item) => item.localId !== localId);
@@ -2581,9 +2510,7 @@ function loadPartnerOptions() {
       value: item.customerNameC,
       raw: item,
     }));
-    contractCompanyOptions.value = options.length
-      ? options
-      : contractCompanyOptions.value;
+    contractCompanyOptions.value = options;
   });
 }