修改

src/views/center/demand.vue

@@ -350,11 +350,13 @@ const sizeChange = (limits) => {
 }
 .dialog {
   display: flex;
+  justify-content: center;
   flex-wrap: wrap;
   margin-top: 20px;
   .list {
     position: relative;
     margin-right: 10px;
+    margin-bottom: 10px;
     width: 380px;
     height: 233px;
     box-shadow: 0 0 13px 0 rgba(5, 88, 219, 0.18);

src/views/center/project.vue

@@ -303,11 +303,13 @@ const sizeChange = (limits) => {
 }
 .dialog {
   display: flex;
+  justify-content: center;
   flex-wrap: wrap;
   margin-top: 20px;
   .list {
     position: relative;
     margin-right: 10px;
+    margin-bottom: 10px;
     width: 380px;
     height: 233px;
     box-shadow: 0 0 13px 0 rgba(5, 88, 219, 0.18);

src/views/center/supply.vue

@@ -348,11 +348,13 @@ const sizeChange = (limits) => {
 }
 .dialog {
   display: flex;
+  justify-content: center;
   flex-wrap: wrap;
   margin-top: 20px;
   .list {
     position: relative;
     margin-right: 10px;
+    margin-bottom: 10px;
     width: 380px;
     height: 233px;
     box-shadow: 0 0 13px 0 rgba(5, 88, 219, 0.18);