diff --git a/src/pages/Forum/promotion-part/Promotion.css b/src/pages/Forum/promotion-part/Promotion.css
index 2232ba5..46e7a0d 100644
--- a/src/pages/Forum/promotion-part/Promotion.css
+++ b/src/pages/Forum/promotion-part/Promotion.css
@@ -108,3 +108,49 @@
   font-size: 16px;
   text-align: center;
 }
+
+.dialog-overlay {
+  position: fixed;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  background: rgba(0,0,0,0.4);
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  z-index: 999;
+}
+.dialog {
+  background: #fff;
+  padding: 20px;
+  border-radius: 6px;
+  width: 400px;
+  max-width: 90%;
+  box-shadow: 0 0 10px rgba(0,0,0,0.25);
+}
+.form-item {
+  margin-bottom: 12px;
+  display: flex;
+  flex-direction: column;
+}
+.form-item label {
+  font-weight: bold;
+  margin-bottom: 4px;
+}
+.form-item input, .form-item textarea {
+  padding: 6px 8px;
+  font-size: 14px;
+  border: 1px solid #ccc;
+  border-radius: 4px;
+}
+.dialog-buttons {
+  display: flex;
+  justify-content: flex-end;
+  gap: 10px;
+}
+.dialog-buttons button {
+  padding: 6px 16px;
+  cursor: pointer;
+}
+