diff --git a/src/pages/InterestGroup/GroupDetail.css b/src/pages/InterestGroup/GroupDetail.css
new file mode 100644
index 0000000..d1968d4
--- /dev/null
+++ b/src/pages/InterestGroup/GroupDetail.css
@@ -0,0 +1,335 @@
+.group-detail {
+  padding: 2rem;
+  background: #fdf7f2;
+  font-family: 'Segoe UI', sans-serif;
+  color: #5e4638;
+}
+
+.group-title {
+  font-size: 2rem;
+  margin-bottom: 1.5rem;
+  border-bottom: 2px solid #eacfc0;
+  padding-bottom: 0.5rem;
+}
+
+.group-section {
+  margin-top: 5%;
+}
+
+.member-list {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 1rem;
+}
+
+.member-card {
+  background: #fff2ef;
+  border: 1px solid #f3d9d4;
+  border-radius: 10px;
+  padding: 1rem;
+  width: 120px;
+  text-align: center;
+  box-shadow: 2px 2px 5px #f0cfc9;
+}
+
+.member-card img {
+  width: 60px;
+  height: 60px;
+  border-radius: 50%;
+  margin-bottom: 0.5rem;
+}
+
+.post-list {
+  display: flex;
+  flex-direction: column;
+  gap: 1rem;
+  margin-top: -2%;
+  margin-left: -1%;
+}
+
+.post-card {
+  background: #fffaf9;
+  border-left: 5px solid #d8a79e;
+  padding: 1rem;
+  border-radius: 8px;
+  box-shadow: 1px 1px 6px #e3ccc6;
+}
+
+.post-card h3 {
+  color: #b56b5c;
+  margin-bottom: 0.5rem;
+}
+
+.post-card span {
+  display: block;
+  font-size: 0.85rem;
+  color: #8c6f63;
+  margin-top: 0.25rem;
+}
+
+.like-count {
+  font-size: 5rem;
+  vertical-align: middle;
+  display: flex;
+  align-items: center;
+}
+
+
+.group-section h2 {
+  color: #555;
+  margin-top: 0;
+  border-bottom: 1px solid #eee;
+  padding-bottom: 10px;
+}
+
+
+.post-card {
+  border: 1px solid #eee;
+  border-radius: 6px;
+  padding: 15px;
+  transition: box-shadow 0.3s;
+}
+
+.post-card:hover {
+  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
+}
+
+/* .post-header {
+  margin-bottom: 10px;
+} */
+
+.post-title {
+  margin: 0 0 8px 0;
+  color: #333;
+  font-size: 1.1rem;
+}
+
+
+.author-avatar {
+  width: 70px;
+  height: 70px;
+  border-radius: 50%;
+  margin-right: 15px;
+  vertical-align: middle;
+}
+
+.comment-button:hover {
+  color: #40a9ff;
+}
+
+.comments-section {
+  margin-top: 15px;
+  padding-top: 15px;
+  border-top: 1px solid #eee;
+}
+
+.comments-title {
+  font-size: 1rem;
+  color: #666;
+  margin-bottom: 10px;
+}
+
+.comment-item {
+  margin-bottom: 15px;
+  padding-bottom: 10px;
+  border-bottom: 1px solid #f5f5f5;
+}
+
+.comment-header {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  margin-bottom: 5px;
+}
+
+.comment-avatar {
+  width: 35px;
+  height: 35px;
+  border-radius: 50%;
+}
+
+.comment-author {
+  font-weight: bold;
+  color: #333;
+}
+
+.comment-time {
+  font-size: 0.8rem;
+  color: #999;
+}
+
+.comment-content {
+  color: #555;
+  margin-left: 45px;
+}
+
+.empty-message {
+  color: #999;
+  text-align: center;
+  padding: 20px 0;
+}
+
+/* GroupDetail.css */
+.member-link {
+  text-decoration: none; /* 移除下划线 */
+  color: inherit; /* 继承父元素颜色 */
+  display: block; /* 使链接覆盖整个卡片 */
+}
+
+.member-card {
+  transition: transform 0.2s, box-shadow 0.2s;
+  cursor: pointer; /* 显示手型光标 */
+}
+
+.member-card:hover {
+  transform: translateY(-4px);
+  box-shadow: 0 8px 16px rgba(0,0,0,0.08);
+  border-color: #eacfc0; /* 悬停时边框颜色变化 */
+}
+
+.member-name {
+  margin-top: 8px;
+  white-space: nowrap; /* 防止名称换行 */
+  overflow: hidden;
+  text-overflow: ellipsis; /* 超出部分显示省略号 */
+}
+
+/* GroupDetail.css */
+.post-actions-bar {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin: 20px 0;
+  padding: 10px;
+  background-color: #fff8f5;
+  border-radius: 6px;
+  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
+}
+
+.create-post-btn {
+  background-color: #b56b5c;
+  color: white;
+  border: none;
+  border-radius: 4px;
+  padding: 10px 16px;
+  font-size: 16px;
+  font-weight: 500;
+  cursor: pointer;
+  transition: all 0.3s;
+  display: flex;
+  align-items: center;
+}
+
+.create-post-btn:hover {
+  background-color: #9c5a4c;
+  transform: translateY(-1px);
+  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
+}
+
+.create-post-btn:active {
+  transform: translateY(0);
+  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
+}
+
+.login-hint {
+  color: #999;
+  font-style: italic;
+  margin: 0;
+}
+
+/* GroupDetail.css */
+.post-list-header {
+  margin-bottom:2%;
+}
+
+.create-post-btn {
+  background-color: #b56b5c;
+  color: white;
+  border: none;
+  border-radius: 4px;
+  padding: 10px 16px;
+  font-size: 16px;
+  font-weight: 500;
+  cursor: pointer;
+  transition: all 0.3s;
+  display: flex;
+  align-items: center;
+}
+
+.create-post-btn:hover {
+  background-color: #9c5a4c;
+  transform: translateY(-1px);
+  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
+}
+
+.create-post-btn:active {
+  transform: translateY(0);
+  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
+}
+
+.login-hint {
+  color: #999;
+  font-style: italic;
+  margin: 0;
+  padding: 8px 0;
+}
+
+/* 米棕色背景 + 深粉色按钮 */
+.create-post-btn {
+  background-color: #d36c6c;
+  color: #fff;
+  border: none;
+  padding: 8px 16px;
+  font-size: 16px;
+  border-radius: 8px;
+  cursor: pointer;
+  transition: background-color 0.3s;
+}
+
+.create-post-btn:hover {
+  background-color: #b45555;
+}
+
+/* 对话框背景遮罩 */
+.modal-overlay {
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  background-color: rgba(100, 80, 60, 0.6);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  z-index: 1000;
+}
+
+/* 对话框内容区 */
+.modal-content {
+  background-color: #f5f0e6;
+  padding: 24px;
+  border-radius: 12px;
+  width: 90%;
+  max-width: 600px;
+  position: relative;
+  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
+  animation: fadeIn 0.3s ease-out;
+}
+
+/* 关闭按钮 */
+.modal-close {
+  position: absolute;
+  top: 10px;
+  right: 16px;
+  font-size: 24px;
+  background: none;
+  border: none;
+  color: #d36c6c;
+  cursor: pointer;
+}
+
+/* 动画效果 */
+@keyframes fadeIn {
+  from { opacity: 0; transform: scale(0.95); }
+  to { opacity: 1; transform: scale(1); }
+}