update code level

assets/css/style.css

@@ -1228,6 +1228,51 @@ body {
     color: var(--medium-gray);
 }
 
+/* 搜索提示样式 */
+.search-hint {
+    text-align: center;
+    padding: 60px 20px;
+    color: var(--text-light);
+    font-size: 1.2rem;
+    max-width: 600px;
+    margin: 0 auto;
+}
+
+.search-hint .fa-search {
+    font-size: 3rem;
+    margin-bottom: 20px;
+    color: var(--medium-gray);
+}
+
+.search-hint h3 {
+    color: var(--text-dark);
+    margin-bottom: 15px;
+    font-size: 1.5rem;
+}
+
+.search-hint p {
+    margin-bottom: 15px;
+    font-weight: 500;
+}
+
+.search-hint ul {
+    list-style: none;
+    text-align: left;
+    max-width: 400px;
+    margin: 0 auto;
+}
+
+.search-hint li {
+    margin-bottom: 10px;
+    padding-left: 0;
+}
+
+.search-hint .btn-primary {
+    margin-top: 10px;
+    padding: 8px 16px;
+    font-size: 0.9rem;
+}
+
 /* 响应式媒体查询 - 移动端优化 */
 @media (max-width: 1024px) {
     .container {