diff --git a/src/views/contract/launch/components/ContractPartyPlaceholderModal.vue b/src/views/contract/launch/components/ContractPartyPlaceholderModal.vue
index 7151001..e8e0aae 100644
--- a/src/views/contract/launch/components/ContractPartyPlaceholderModal.vue
+++ b/src/views/contract/launch/components/ContractPartyPlaceholderModal.vue
@@ -373,6 +373,32 @@
                 </div>
               </div>
 
+              <div v-if="requiresAuthAttachment" class="upload-block">
+                <div class="upload-label">授权委托书附件</div>
+                <a-upload-dragger
+                  :file-list="authAttachmentUploadList"
+                  :before-upload="handleAuthAttachmentUpload"
+                  @remove="handleRemoveAuthAttachment"
+                  :disabled="isViewMode"
+                  :show-upload-list="{ showRemoveIcon: !isViewMode }"
+                  multiple
+                >
+                  <div class="other-upload-text">当前签订方式需要上传授权委托书附件</div>
+                </a-upload-dragger>
+                <div v-if="detailState.authAttachmentList?.length" class="download-list">
+                  <a-space wrap>
+                    <a-button
+                      v-for="item in detailState.authAttachmentList"
+                      :key="item.uid || item.filePath"
+                      size="small"
+                      @click="downloadFile(item.filePath, item.name || item.fileName)"
+                    >
+                      下载 {{ item.name || item.fileName }}
+                    </a-button>
+                  </a-space>
+                </div>
+              </div>
+
               <div class="upload-block">
                 <div class="upload-label">其他附件</div>
                 <a-upload-dragger
@@ -449,6 +475,20 @@
                     style="width: 100%"
                   />
                 </a-form-item>
+                <a-form-item
+                  v-if="detailState.valuationMode === '2'"
+                  class="tight-item"
+                  label="预估金额"
+                  required
+                >
+                  <a-input-number
+                    v-model:value="detailState.estimatedAmount"
+                    :min="0"
+                    :precision="2"
+                    :controls="false"
+                    style="width: 100%"
+                  />
+                </a-form-item>
                 <a-form-item class="tight-item" label="币种">
                   <a-input
                     :value="
@@ -528,6 +568,17 @@
                     placeholder="起草人所在主体机构编码；当前默认取登录组织ID，多个用逗号分隔"
                   />
                 </a-form-item>
+                <a-form-item
+                  v-if="detailState.isPublicTender"
+                  class="tight-item"
+                  label="关联招标号"
+                  required
+                >
+                  <a-input
+                    v-model:value="detailState.biddingNo"
+                    placeholder="公开招标时必填"
+                  />
+                </a-form-item>
                 <a-form-item class="tight-item" label="开票时间">
                   <a-date-picker
                     v-model:value="detailState.invoiceDate"
@@ -545,6 +596,13 @@
               </div>
 
               <div class="boolean-grid">
+                <div class="boolean-row">
+                  <span>是否需修订条款</span>
+                  <a-radio-group v-model:value="detailState.needAmendments">
+                    <a-radio :value="true">是</a-radio>
+                    <a-radio :value="false">否</a-radio>
+                  </a-radio-group>
+                </div>
                 <div class="boolean-row">
                   <span>是否涉及港澳台</span>
                   <a-radio-group
@@ -977,6 +1035,7 @@ function normalizeBooleanValue(value) {
 
 function pickBooleanSource(source = {}, key) {
   const mapping = {
+    needAmendments: [source.needAmendments, source.isNeedAmendments],
     isInvolveHongKongMacaoTaiwan: [
       source.isInvolveHongKongMacaoTaiwan,
       source.isSgat,
@@ -1041,6 +1100,11 @@ function splitFilesByCategory(source = {}) {
       : sourceFiles
           .filter((item) => item.fileCategory === "gist")
           .map(normalizeFileItem),
+    authAttachmentList: source.authAttachmentList?.length
+      ? source.authAttachmentList.map(normalizeFileItem)
+      : sourceFiles
+          .filter((item) => item.fileCategory === "auth")
+          .map(normalizeFileItem),
   };
 }
 
@@ -1286,6 +1350,7 @@ function createContractFormData() {
     contractType: "",
     contractTypeCode: "",
     contractAmount: null,
+    estimatedAmount: null,
     effectiveStart: "",
     effectiveEnd: "",
     contractPeriodType: "0",
@@ -1312,6 +1377,7 @@ function createContractFormData() {
     bodySummary: "",
     invoiceDate: "",
     receiveDate: "",
+    biddingNo: "",
 
     contractBodyFileName: "",
     contractBodyFilePath: "",
@@ -1320,6 +1386,7 @@ function createContractFormData() {
     contractBodyArrayBuffer: null,
     otherAttachmentList: [],
     contractGistFileList: [],
+    authAttachmentList: [],
     // 正文模板字段值统一放这里，后续新增模板字段时尽量只改 templateFieldList
     templateFieldValues: {},
     partyState: {
@@ -1335,6 +1402,7 @@ function createContractFormData() {
     isIncludedInCurrentYearBudget: false,
     isShared: false,
     isMajorContract: false,
+    needAmendments: false,
     extraAmounts: {
       depositEnabled: false,
       deposit: 0,
@@ -1386,6 +1454,8 @@ function copyContractFormData(data = {}) {
       form.otherAttachmentList = fileState.otherAttachmentList;
     } else if (key === "contractGistFileList") {
       form.contractGistFileList = fileState.contractGistFileList;
+    } else if (key === "authAttachmentList") {
+      form.authAttachmentList = fileState.authAttachmentList;
     } else if (
       [
         "contractBodyFileName",
@@ -1410,6 +1480,7 @@ function copyContractFormData(data = {}) {
         source.signingSubjectCode ?? source.orgId ?? form.signingSubjectCode;
     } else if (
       [
+        "needAmendments",
         "isInvolveHongKongMacaoTaiwan",
         "isPublicTender",
         "isForeignRelatedSubject",
@@ -1442,6 +1513,7 @@ const templateName = ref("");
 const detailState = ref(createContractFormData());
 const otherAttachmentList = ref([]);
 const gistAttachmentList = ref([]);
+const authAttachmentUploadList = ref([]);
 const bodyConfigModalRef = ref(null);
 const counterpartyRoleKeys = ref([]);
 
@@ -1515,6 +1587,10 @@ const contractBodyHint = computed(() =>
       : "当前为模板创建，点击维护模板信息和正文预览",
 );
 
+const requiresAuthAttachment = computed(() =>
+  ["GZBSQRQZ", "HTZYZBSQRQZ"].includes(detailState.value.sealType),
+);
+
 function syncUploadLists() {
   otherAttachmentList.value = (detailState.value.otherAttachmentList || []).map(
     (item, index) => ({
@@ -1532,6 +1608,14 @@ function syncUploadLists() {
       status: item.status || "done",
     }),
   );
+  authAttachmentUploadList.value = (detailState.value.authAttachmentList || []).map(
+    (item, index) => ({
+      uid: item.uid || `auth_${index + 1}`,
+      name: item.name || item.fileName,
+      size: item.size ?? item.fileSize,
+      status: item.status || "done",
+    }),
+  );
 }
 
 function syncCounterpartyState() {
@@ -1754,6 +1838,10 @@ function handleGistAttachmentUpload(file) {
   return uploadAttachmentFile(file, "gist");
 }
 
+function handleAuthAttachmentUpload(file) {
+  return uploadAttachmentFile(file, "auth");
+}
+
 function uploadAttachmentFile(file, category) {
   const formData = new FormData();
   formData.append("file", file);
@@ -1774,6 +1862,9 @@ function uploadAttachmentFile(file, category) {
     if (category === "gist") {
       detailState.value.contractGistFileList.push(item);
       gistAttachmentList.value.push(item);
+    } else if (category === "auth") {
+      detailState.value.authAttachmentList.push(item);
+      authAttachmentUploadList.value.push(item);
     } else {
       detailState.value.otherAttachmentList.push(item);
       otherAttachmentList.value.push(item);
@@ -1803,6 +1894,16 @@ function handleRemoveGistAttachment(file) {
   );
 }
 
+function handleRemoveAuthAttachment(file) {
+  detailState.value.authAttachmentList =
+    detailState.value.authAttachmentList.filter(
+      (item) => item.uid !== file.uid && item.name !== file.name,
+    );
+  authAttachmentUploadList.value = authAttachmentUploadList.value.filter(
+    (item) => item.uid !== file.uid && item.name !== file.name,
+  );
+}
+
 async function downloadFile(filePath, fileName = "附件") {
   if (!filePath) {
     message.warning("文件路径为空，无法下载");
@@ -1901,6 +2002,13 @@ function validateState() {
   )
     return "请填写期限说明";
   if (!detailState.value.valuationMode) return "请选择计价方式";
+  if (
+    detailState.value.valuationMode === "2" &&
+    (detailState.value.estimatedAmount === null ||
+      detailState.value.estimatedAmount === undefined ||
+      detailState.value.estimatedAmount === "")
+  )
+    return "请填写预估金额";
   if (!detailState.value.currencyName) return "请选择币种";
   if (!detailState.value.sealType) return "请选择签订方式";
   if (!detailState.value.textSource) return "请选择文本来源";
@@ -1910,8 +2018,15 @@ function validateState() {
   if (!detailState.value.isElectron) return "请选择签署方式";
   if (!detailState.value.contractTypeCode) return "请选择合同属性中的合同类型";
   if (!detailState.value.executorAccount?.trim()) return "请填写合同执行人";
+  if (detailState.value.isPublicTender && !detailState.value.biddingNo?.trim())
+    return "请填写关联招标号";
   if (!detailState.value.contractBodyFileName?.trim())
     return "请先配置合同正文";
+  if (
+    requiresAuthAttachment.value &&
+    !(detailState.value.authAttachmentList || []).length
+  )
+    return "请上传授权委托书附件";
   for (const plan of detailState.value.performancePlans || []) {
     if (!plan.planMatter?.trim()) return "请填写履行计划的履行事项";
     if (!plan.planWhere?.trim()) return "请填写履行计划的履约条件";
@@ -1936,6 +2051,12 @@ function handleSave() {
     detailState.value.contractAmount === ""
       ? null
       : Number(detailState.value.contractAmount);
+  detailState.value.estimatedAmount =
+    detailState.value.estimatedAmount === null ||
+    detailState.value.estimatedAmount === undefined ||
+    detailState.value.estimatedAmount === ""
+      ? null
+      : Number(detailState.value.estimatedAmount);
 
   const record = buildLaunchRecord();
   emit("save", {
@@ -2016,6 +2137,15 @@ function buildLaunchRecord() {
       fileSize: item.size ?? item.fileSize ?? 0,
     });
   });
+  (detailState.value.authAttachmentList || []).forEach((item) => {
+    fileList.push({
+      fileCategory: "auth",
+      fileName: item.name || item.fileName,
+      filePath: item.filePath || "",
+      fileType: item.fileType || "",
+      fileSize: item.size ?? item.fileSize ?? 0,
+    });
+  });
   (detailState.value.otherAttachmentList || []).forEach((item) => {
     fileList.push({
       fileCategory: "other",
@@ -2048,6 +2178,11 @@ function buildLaunchRecord() {
     primaryContent: detailState.value.primaryContent,
     amountExplain: detailState.value.amountExplain,
     valuationMode: detailState.value.valuationMode,
+    needAmendments: detailState.value.needAmendments ? "1" : "0",
+    estimatedAmount:
+      detailState.value.valuationMode === "2"
+        ? detailState.value.estimatedAmount
+        : null,
     sealType: detailState.value.sealType,
     textSource:
       detailState.value.textSource ||
@@ -2069,6 +2204,7 @@ function buildLaunchRecord() {
     isShare: detailState.value.isShared ? "1" : "0",
     contractNature: detailState.value.isForeignRelatedSubject ? "1" : "0",
     isSgat: detailState.value.isInvolveHongKongMacaoTaiwan ? "1" : "0",
+    biddingNo: detailState.value.isPublicTender ? detailState.value.biddingNo || "" : "",
     contractGistRemark: detailState.value.contractGistRemark || "",
     bodySummary: detailState.value.bodySummary || detailState.value.primaryContent || "",
     contractTextFileName: detailState.value.contractBodyFileName || "",