fix(review-meeting): 优化会议附件卡片样式并防止重复提交

- 优化卡片布局为现代风格，支持长文件名完整显示
- 添加 isSubmitting 状态防止快速连续点击导致重复创建会议
- 按钮在提交中禁用并显示"提交中..."文字

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/views/review/meeting/MeetingEdit.vue

@@ -187,10 +187,10 @@
         v-if="!isView"
         type="button"
         class="btn-primary"
-        :disabled="formLoading"
+        :disabled="formLoading || isSubmitting"
         @click="submitForm"
       >
-        {{ formLoading ? '提交中...' : '提交' }}
+        {{ formLoading || isSubmitting ? '提交中...' : '提交' }}
       </button>
       <button type="button" class="btn-default" @click="handleBack">返回</button>
     </div>
@@ -239,8 +239,8 @@
         </div>
       </div>
       <template #footer>
-        <el-button type="primary" :disabled="agendaDialogLoading" @click="handleDialogConfirm">
-          确定
+        <el-button type="primary" :disabled="agendaDialogLoading || isSubmitting" @click="handleDialogConfirm">
+          {{ agendaDialogLoading || isSubmitting ? '提交中...' : '确定' }}
         </el-button>
       </template>
     </el-dialog>
@@ -291,6 +291,7 @@ const formLoading = ref(false)
 const expertOptions = ref<any[]>([])
 const isProjectsModified = ref(false)
 const meetingLocationOptions = ['东5楼326', '南6楼203', '南6楼207']
+const isSubmitting = ref(false) // 防止重复提交
 
 // 上传会议附件弹窗
 const agendaDialogVisible = ref(false)
@@ -619,7 +620,7 @@ const buildAgendaGenerateData = (): ReviewMeetingAgendaGenerateReqVO | undefined
 }
 
 const submitForm = async () => {
-  if (formLoading.value) return
+  if (formLoading.value || isSubmitting.value) return
   const valid = await formRef.value?.validate().catch(() => false)
   if (!valid) return
   if (formData.meetingTimeRange?.length === 2) {
@@ -628,6 +629,7 @@ const submitForm = async () => {
   }
   // 编辑模式且有议程附件：直接保存
   if (isEdit.value && formData.agendaAttachmentUrl) {
+    isSubmitting.value = true
     formLoading.value = true
     try {
       const projects = buildScheduledProjects()
@@ -658,6 +660,7 @@ const submitForm = async () => {
       router.push({ name: 'ReviewMeeting' })
     } finally {
       formLoading.value = false
+      isSubmitting.value = false
     }
   } else {
     // 新建模式或编辑模式下议程附件为空：弹出上传议程附件弹窗
@@ -711,10 +714,12 @@ const handleDialogGenerateAgenda = async () => {
 
 // 弹窗确定按钮 - 真正保存草稿
 const handleDialogConfirm = async () => {
+  if (agendaDialogLoading.value || isSubmitting.value) return
   if (!formData.agendaAttachmentUrl) {
     ElMessage.warning('请上传或生成议程附件')
     return
   }
+  isSubmitting.value = true
   agendaDialogLoading.value = true
   try {
     const projects = buildScheduledProjects()
@@ -736,6 +741,7 @@ const handleDialogConfirm = async () => {
     router.push({ name: 'ReviewMeeting' })
   } finally {
     agendaDialogLoading.value = false
+    isSubmitting.value = false
   }
 }
 
@@ -1031,38 +1037,87 @@ const handleBack = () => {
 .attachment-cards {
   display: flex;
   gap: 12px;
+  flex-wrap: wrap;
 }
 .attachment-card {
-  flex: 1;
-  background-color: #fff;
-  border: 1px solid #e1e7f0;
-  border-radius: 4px;
-  overflow: hidden;
+  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
+  border: 1px solid #e8eaef;
+  border-radius: 8px;
+  padding: 12px 14px;
+  min-width: 320px;
+  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
+  transition: all 0.2s ease;
+}
+.attachment-card:hover {
+  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
+  border-color: #d0d4dc;
 }
 .attachment-card-header {
-  padding: 1px 6px;
-  background-color: #f5f7fa;
-  border-bottom: 1px solid #e1e7f0;
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  margin-bottom: 8px;
 }
 .attachment-card-title {
   font-size: 12px;
   font-weight: 600;
-  color: #333;
+  color: #6b7280;
+  text-transform: uppercase;
+  letter-spacing: 0.3px;
 }
 .attachment-card-body {
-  padding: 2px 6px;
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
 }
 .attachment-file-info {
   display: flex;
   align-items: center;
-  gap: 4px;
+  gap: 8px;
   flex-wrap: wrap;
+  min-width: 0;
+}
+.attachment-file-info .el-link {
+  font-size: 13px;
+  color: #3b82f6;
+  font-weight: 500;
+  word-break: break-all;
+  flex: 1;
+  min-width: 100px;
+}
+.attachment-file-info .el-link:hover {
+  text-decoration: underline;
+}
+.attachment-file-info .el-tag {
+  background-color: #eef2ff;
+  color: #6366f1;
+  border-color: #e0e7ff;
+  font-weight: 500;
+}
+.attachment-file-info .el-text {
+  color: #9ca3af;
+  font-size: 12px;
+}
+.attachment-file-info .el-button {
+  color: #ef4444;
+  font-size: 12px;
+}
+.attachment-file-info .el-button:hover {
+  color: #dc2626;
 }
 .minutes-ai-line {
-  margin-top: 2px;
   display: flex;
   align-items: center;
-  gap: 4px;
+  gap: 6px;
   flex-wrap: wrap;
+  padding-top: 4px;
+  border-top: 1px solid #f0f0f0;
+}
+.minutes-ai-line .el-tag {
+  font-weight: 500;
+}
+.minutes-ai-line .el-text {
+  color: #9ca3af;
+  font-size: 11px;
 }
 </style>