style: 统一页面按钮样式与尺寸

src/components/TaskForm.vue

@@ -410,7 +410,7 @@ async function previewMaterial() {
       <div class="group" v-if="isUpdateMode" v-loading="applicationLoading">
         <div class="application-header">
           <h3>应用场景</h3>
-          <el-button type="primary" @click="openApplicationDialog()">添加应用场景</el-button>
+          <el-button type="success" @click="openApplicationDialog()">添加应用场景</el-button>
         </div>
         <div class="application-list" v-if="applications.length > 0">
           <div class="application-item" v-for="item in applications" :key="item.id">
@@ -608,15 +608,6 @@ async function previewMaterial() {
     padding: 16px;
   }
 
-  .action-row {
-    flex-direction: column;
-  }
-
-  .action-row .el-button {
-    width: 100%;
-    margin: 0;
-  }
-
   .application-main {
     align-items: flex-start;
     flex-direction: column;