diff --git a/src/pages/InterestGroup/InterestGroup.css b/src/pages/InterestGroup/InterestGroup.css
index 91b21da..f819038 100644
--- a/src/pages/InterestGroup/InterestGroup.css
+++ b/src/pages/InterestGroup/InterestGroup.css
@@ -204,4 +204,82 @@
   margin-top: 40px;
   /* padding: 24px 32px; */
   padding: 3% 3%
-}    
\ No newline at end of file
+}    
+
+.create-group-btn {
+  background-color: #f2d0c9; /* 浅粉色 */
+  color: #4e342e; /* 深棕色 */
+  border: none;
+  padding: 10px 20px;
+  margin: 20px 0;
+  border-radius: 8px;
+  font-size: 16px;
+  cursor: pointer;
+  transition: background-color 0.3s ease;
+}
+
+.create-group-btn:hover {
+  background-color: #e4b5ae;
+}
+
+.modal-overlay {
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  background-color: rgba(50, 30, 20, 0.5); /* 米棕半透明 */
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  z-index: 1000;
+}
+
+.modal-content {
+  background-color: #fffaf5; /* 淡米色 */
+  padding: 30px;
+  border-radius: 12px;
+  width: 400px;
+  box-shadow: 0 5px 15px rgba(0,0,0,0.2);
+}
+
+.modal-content h2 {
+  margin-bottom: 15px;
+  color: #4e342e;
+}
+
+.modal-content input,
+.modal-content textarea {
+  width: 100%;
+  padding: 10px;
+  margin: 8px 0;
+  border: 1px solid #d3c0b0;
+  border-radius: 6px;
+  font-size: 14px;
+}
+
+.modal-buttons {
+  display: flex;
+  justify-content: flex-end;
+  gap: 10px;
+  margin-top: 15px;
+}
+
+.modal-buttons button {
+  padding: 8px 16px;
+  border: none;
+  border-radius: 6px;
+  font-weight: bold;
+  cursor: pointer;
+  font-size: 14px;
+}
+
+.modal-buttons button:first-child {
+  background-color: #d7a29e; /* 粉棕 */
+  color: white;
+}
+
+.modal-buttons button:last-child {
+  background-color: #c5b8af; /* 米色灰棕 */
+  color: white;
+}