chore: update blog content and config

source/about/index.md

@@ -0,0 +1,6 @@
+---
+title: 关于
+date: 2026-07-08 00:00:00
+layout: about
+---
+这是关于页面。

source/categories/index.md

@@ -0,0 +1,6 @@
+---
+title: 分类
+date: 2026-07-08 00:00:00
+type: categories
+layout: categories
+---

source/css/custom.css

@@ -145,3 +145,14 @@ html:not([data-theme="dark"]) #post-info #post-meta i {
         margin-bottom: 10px;
     }
 }
+
+/* ==================== 文章标题栏字号放大 30% ==================== */
+#post-info .post-title {
+    font-size: 3.25em !important;
+}
+
+@media screen and (max-width: 768px) {
+    #post-info .post-title {
+        font-size: 2.73em !important;
+    }
+}

source/tags/index.md

@@ -0,0 +1,6 @@
+---
+title: 标签
+date: 2026-07-08 00:00:00
+type: tags
+layout: tags
+---