Restrict sidebar width to desktop and update about page

assets/css/custom.css

@@ -43,9 +43,11 @@ nav a:first-of-type img {
     --hextra-max-footer-width: 76rem;
 }
 
-/* Narrow left sidebar to half width (128px) */
-.hextra-sidebar-container {
+/* Narrow left sidebar to half width — desktop only */
+@media (min-width: 48rem) {
+    .hextra-sidebar-container {
         width: 8rem !important;
+    }
 }
 
 .dark body,

content/about/_index.md

@@ -1,8 +1,31 @@
 ---
 ---
+{{< hextra/hero-subtitle >}}
+  Fukun.Net/about
+{{< /hextra/hero-subtitle >}}
 
-# FuKun.Net
+我是傅堃。
 
-Tech notes & life.
+个人开发者，前产品经理，央企管理人员，一位新晋奶爸。当然大部分时间还是贡献给了职业发展，干过央企的 IT 运维智能化、大型营业计费系统建设、大规模IT资源池安全能力建设、企业身份账号权限治理，挺有意思的。
 
-Built with Hugo + Hextra, self-hosted.
+这个站点想讨论的不是什么道与术，是本应凌驾于身份角色之上的**自我**。我总觉得人其实很难承认自己被所谓靠自己努力成为的身份角色定义，从出生起你的身份也从未保持超过5年，但当你情绪激动时你与五岁时的你其实没多大区别。
+
+如果你也想在日常的繁杂中找一个属于自我的空间，挑战落地一些奇思妙想，或是研究一些稀奇古怪，这里的文章会给你启发。
+
+由于公司管理制度，我不可以参与盈利项目，所以无法接洽商务合作。
+
+
+驾驶教练机拉杆起飞的那一刻/宇治城的小溪边被斜阳刺痛双眼的那一刻/在广汕国道上骑自行车听到路旁大爷大喊加油的那一刻/我清楚的感受到我是我自己
+
+
+Hey, I'm FuKun.
+
+Solo developer. Ex-product manager. State-owned enterprise manager. New dad. Most of my waking hours go to my career — I've done IT operations automation at scale, built billing systems handling massive transaction volumes, architected security for enormous resource pools, and untangled enterprise identity governance. It's been fun.
+
+This site isn't about methodology or technique. It's about the **self** that should sit above all the roles we play. I think people struggle to admit how much their identity gets defined by their roles — and yet, no identity you've held has lasted more than five years since birth. When emotions hit, you still react the same way you did at five.
+
+If you're trying to carve out space for your own self amid the chaos — chasing down a wild idea, researching something obscure, building something that's just yours — the writing here might spark something.
+
+A note on logistics: due to company policy, I can't participate in for-profit projects, so I don't take on business collaborations.
+
+The moment when I pulled back the Cessena's stick. The moment setting sun stinged my eyes by a stream in Uji.The moment an old sir shouted "COME ON!" as I was crosing South-China by bike. Without question, that I was aware WHOIAM.

content/blog/_index.md

@@ -1,4 +1,6 @@
 ---
 ---
 
-文章列表
+{{< hextra/hero-subtitle >}}
+  Fukun.Net/blog
+{{< /hextra/hero-subtitle >}}