fix(site): Restore personal homepage introduction

Replace the homepage's pitch-oriented hero copy with a concise personal introduction covering research work, education, and long-term interests while retaining the current visual design and research sections.

Author: cidxb

index.html

@@ -2,7 +2,7 @@
 layout: landing
 title: Sid Liang, Yi
 description: >
-  Operator-researcher building embodied intelligence for real-world robots.
+  Researcher working across robotics, machine learning, and cognitive science.
 hide_description: true
 sitemap: true
 permalink: /
@@ -11,18 +11,31 @@
 <main class="portfolio-shell">
   <section id="about" class="portfolio-hero">
     <div class="hero-copy">
-      <p class="eyebrow">Operator · Researcher · Builder</p>
-      <h1>Embodied AI &amp; Robotics Technical Lead</h1>
+      <p class="eyebrow">Robotics · Machine Learning · Cognitive Science</p>
+      <h1>Sid Liang, Yi</h1>
       <p class="hero-lede">
-        I build robot intelligence that can <strong>understand context</strong>,
-        <strong>act through contact</strong>, and <strong>recover when reality
-        diverges from the plan</strong>.
+        I work on tactile perception, dexterous manipulation, multimodal robot
+        learning, and real-robot adaptation. My focus is on building learning
+        systems that can improve through interaction, tactile feedback, and
+        accumulated experience.
       </p>
       <p class="hero-summary">
-        My work connects cognitive science with tactile perception, dexterous
-        manipulation, real-robot learning, and runtime systems. I care about
-        the full loop—from sensing and representation to execution,
-        evaluation, and continuous correction.
+        I received my bachelor's degree in Photoelectronic Science and
+        Technology (basically laser stuff :) ) from Southwest University of
+        Science and Technology in China, and my master's degree in Sensor and
+        Cognitive Psychology from Chemnitz University of Technology in Germany,
+        under the supervision of
+        <a href="https://www.tu-chemnitz.de/physik/PHKP/wolfgang.html.en" target="_blank" class="academic-link">Prof. Dr. Wolfgang Einhäuser-Treyer</a>
+        from the Physics of Cognition group and
+        <a href="https://www.uni-koblenz.de/de/informatik/icv/neubert/" target="_blank" class="academic-link">Prof. Dr. Peer Neubert</a>
+        from the Autonomous Systems group at the University of Koblenz.
+      </p>
+      <p class="hero-summary">
+        I am broadly interested in the intersection of machine learning and
+        human–robot interaction. My long-term goal is to build robots that can
+        learn from human interaction and continue improving through their own
+        experience. I am particularly interested in bio-inspired learning and
+        insights from cognitive science.
       </p>
       <div class="hero-actions" aria-label="Primary links">
         <a class="button button-primary" href="#work">Selected work</a>