diff --git a/src/components/Administer.css b/src/components/Administer.css
index 1599a3e..786e3dc 100644
--- a/src/components/Administer.css
+++ b/src/components/Administer.css
@@ -167,4 +167,60 @@
   padding: 10px;
   background: #f5f5f5;
   border-radius: 4px;
+}
+
+/* 公告表单样式 */
+.announcement-form {
+  padding: 20px;
+  background: #f5f5f5;
+  border-radius: 8px;
+  margin-bottom: 20px;
+}
+
+.announcement-form .form-group {
+  margin-bottom: 15px;
+}
+
+.announcement-form label {
+  display: block;
+  margin-bottom: 5px;
+  font-weight: bold;
+}
+
+.announcement-form input[type="text"],
+.announcement-form textarea {
+  width: 100%;
+  padding: 8px;
+  border: 1px solid #ddd;
+  border-radius: 4px;
+}
+
+.announcement-form textarea {
+  min-height: 100px;
+}
+
+/* 公告列表样式 */
+.announcement-list-container {
+  margin-top: 20px;
+}
+
+.announcement-table {
+  width: 100%;
+  border-collapse: collapse;
+}
+
+.announcement-table th,
+.announcement-table td {
+  padding: 12px;
+  text-align: left;
+  border-bottom: 1px solid #ddd;
+}
+
+.announcement-table th {
+  background-color: #f2f2f2;
+  font-weight: bold;
+}
+
+.announcement-table tr:hover {
+  background-color: #f9f9f9;
 }
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