优化个人中心样式

Change-Id: Ic944224665d80447bfa2cfa1a5221c9c0046194f
diff --git a/src/pages/UserCenter/UserProfile.css b/src/pages/UserCenter/UserProfile.css
index e69de29..d4d9476 100644
--- a/src/pages/UserCenter/UserProfile.css
+++ b/src/pages/UserCenter/UserProfile.css
@@ -0,0 +1,40 @@
+.user-center {
+  max-width: 800px;
+  margin: 0 auto;
+  padding: 20px;
+  font-family: Arial, sans-serif;
+}
+
+.profile-header {
+  text-align: center;
+  margin-bottom: 20px;
+}
+
+.avatar {
+  width: 100px;
+  height: 100px;
+  border-radius: 50%;
+  object-fit: cover;
+}
+
+h1 {
+  font-size: 2em;
+  margin-top: 10px;
+}
+
+.profile-details {
+  font-size: 1.2em;
+}
+
+.profile-details p {
+  margin: 10px 0;
+}
+
+.profile-details strong {
+  color: #333;
+}
+
+.error {
+  color: red;
+  text-align: center;
+}