diff --git a/content/post/2026-01-31-Artalk接入AI摘要/index.md b/content/post/2026-01-31-Artalk接入AI摘要/index.md
index 7ab72d8f..22021478 100644
--- a/content/post/2026-01-31-Artalk接入AI摘要/index.md
+++ b/content/post/2026-01-31-Artalk接入AI摘要/index.md
@@ -88,27 +88,38 @@ async function processFiles(dir) {
 window.artalk.on('list-loaded', function() {
     // 检查是否有 AI 评论数据
     if (window.artalkConfig.aiComment && !document.querySelector('.atk-ai-comment')) {
-        // 创建 DOM 结构
-        var aiDiv = document.createElement('div');
-        aiDiv.className = 'atk-comment atk-ai-comment';
-        aiDiv.innerHTML = `...`; // 填充 HTML
+        var listBody = document.querySelector('.atk-list-body') || document.querySelector('.atk-list');
+        
+        if (listBody) {
+            // 避免同时出现“此时无声胜有声”
+            var noComment = document.querySelector('.atk-list-no-comment');
+            if (noComment) noComment.style.display = 'none';
 
-        // 插入到列表头部
-        var listBody = document.querySelector('.atk-list-body');
-        if (listBody) listBody.prepend(aiDiv);
-
-        // 简单的打字机效果
-        const contentEl = aiDiv.querySelector('.ai-content-text');
-        const text = window.artalkConfig.aiComment.content;
-        let i = 0;
-        function type() {
-            if (i < text.length) {
-                contentEl.textContent += text.charAt(i);
-                i++;
-                setTimeout(type, Math.random() * 30 + 20);
-            }
+            // 创建 DOM 结构
+            var aiDiv = document.createElement('div');
+            aiDiv.className = 'atk-comment atk-ai-comment';
+            aiDiv.innerHTML = `...`; // 填充 HTML
+            
+            // 插入到列表头部
+            listBody.prepend(aiDiv);
+            
+            // ... (打字机效果)
         }
-        setTimeout(type, 500);
+    }
+});
+```
+
+## 4. 适配 PJAX
+
+由于博客使用了 PJAX，页面切换时需要重新初始化 Artalk。我们将初始化逻辑封装在 `initArtalk` 函数中，并在 `pjax:complete` 事件中调用。
+
+```javascript
+// mypjax.js
+document.addEventListener("pjax:complete", function () {
+    // ...
+    // 重载评论
+    if (typeof window.initArtalk === 'function') {
+        window.initArtalk();
     }
 });
 ```
diff --git a/themes/Ying/assets/css/main.css b/themes/Ying/assets/css/main.css
index dc292d66..1a1e6970 100644
--- a/themes/Ying/assets/css/main.css
+++ b/themes/Ying/assets/css/main.css
@@ -196,8 +196,102 @@ code {
     background-color: #f6f8fa; /* Day Mode */
     color: #24292e;
     border: 1px solid #d0d7de;
+    /* Hide scrollbar but allow scrolling */
+    scrollbar-width: none; /* Firefox */
+    -ms-overflow-style: none; /* IE 10+ */
 }
 
+pre::-webkit-scrollbar,
+code::-webkit-scrollbar {
+    display: none; /* Chrome/Safari/Webkit */
+}
+
+/* Code Folding */
+.code-fold-container {
+    position: relative;
+    margin-bottom: 1rem;
+    border-radius: 4px; /* Optional: match highlight radius */
+}
+
+.code-fold-container.collapsed {
+    max-height: 360px;
+    overflow: hidden;
+}
+
+/* Ensure inner code blocks don't have bottom margin when wrapped */
+.code-fold-container .highlight,
+.code-fold-container pre {
+    margin-bottom: 0;
+}
+
+.code-expand-btn {
+    display: none;
+    position: absolute;
+    bottom: -7px;
+    left: -146px;
+    width: 100%;
+    height: 80px; 
+    text-align: center;
+    /* Gradient Background for Fade Effect */
+    background: linear-gradient(180deg, rgba(246, 248, 250, 0) 0%, rgba(246, 248, 250, 0.9) 50%, rgba(246, 248, 250, 1) 100%);
+    border: none;
+    color: #586069;
+    cursor: pointer;
+    z-index: 10;
+    font-size: 13px;
+    transition: all 0.2s;
+    align-items: center;
+    justify-content: center;
+    padding-top: 20px;
+}
+
+/* Show button when collapsed */
+.code-fold-container.collapsed .code-expand-btn {
+    display: flex;
+}
+
+/* Button Pill Style */
+.code-expand-btn span {
+    background: rgba(255, 255, 255, 0.9);
+    padding: 6px 16px;
+    border-radius: 20px;
+    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
+    display: flex;
+    align-items: center;
+    border: 1px solid rgba(0,0,0,0.05);
+    transition: all 0.2s ease;
+}
+
+.code-expand-btn:hover span {
+    background: #fff;
+    transform: translateY(-2px);
+    box-shadow: 0 4px 12px rgba(0,0,0,0.12);
+    color: #0366d6;
+}
+
+/* Dark Mode Support */
+[data-theme="dark"] .code-expand-btn {
+    background: linear-gradient(180deg, rgba(40, 42, 54, 0) 0%, rgba(40, 42, 54, 0.9) 50%, rgba(40, 42, 54, 1) 100%);
+    color: #f8f8f2;
+}
+
+[data-theme="dark"] .code-expand-btn span {
+    background: rgba(68, 71, 90, 0.8);
+    border-color: rgba(255,255,255,0.05);
+}
+
+[data-theme="dark"] .code-expand-btn:hover span {
+    background: #44475a;
+    color: #8be9fd;
+}
+
+/* Artalk AI Comment Integration */
+.atk-list.has-ai-comment .atk-list-no-comment {
+    display: none !important;
+}
+
+
+
 [data-theme="dark"] pre,
 [data-theme="dark"] code {
     background-color: #282a36; /* Night Mode */
diff --git a/themes/Ying/assets/js/main.js b/themes/Ying/assets/js/main.js
index d695a415..cb39be35 100644
--- a/themes/Ying/assets/js/main.js
+++ b/themes/Ying/assets/js/main.js
@@ -114,12 +114,19 @@ window.initArtalk = function() {
 
     // Inject AI Comment
     window.artalk.on('list-loaded', function() {
-        if (window.artalkConfig.aiComment && !document.querySelector('.atk-ai-comment')) {
-            var listBody = document.querySelector('.atk-list-body') || document.querySelector('.atk-list');
-            if (listBody) {
-                var aiData = window.artalkConfig.aiComment;
-                var aiDiv = document.createElement('div');
-                aiDiv.className = 'atk-comment atk-ai-comment';
+        if (window.artalkConfig.aiComment) {
+            // Force hide "No comments" message via CSS class
+            var list = document.querySelector('.atk-list');
+            if (list) {
+                list.classList.add('has-ai-comment');
+            }
+
+            if (!document.querySelector('.atk-ai-comment')) {
+                var listBody = document.querySelector('.atk-list-body') || document.querySelector('.atk-list');
+                if (listBody) {
+                    var aiData = window.artalkConfig.aiComment;
+                    var aiDiv = document.createElement('div');
+                    aiDiv.className = 'atk-comment atk-ai-comment';
                 // Initially empty content for typewriter effect
                 aiDiv.innerHTML = `
                     <div class="atk-avatar">
@@ -158,7 +165,8 @@ window.initArtalk = function() {
                 setTimeout(type, 500);
             }
         }
-    });
+    }
+});
 
     // Artalk 初始化完成后，再加载弹幕 (If available)
     if (typeof isMobile === 'function' && !isMobile() && window.loadBarrager) {
@@ -190,7 +198,7 @@ function initCodeCopy() {
 
     const copyBtn = document.createElement('button');
     copyBtn.className = 'copy-code-btn';
-    copyBtn.innerHTML = '<i class="fa fa-copy"></i>'; // 使用 FontAwesome 图标
+    copyBtn.innerHTML = '<i class="ri-file-copy-2-line"></i>'; // 使用 RemixIcon
     copyBtn.title = '复制代码';
     
     // 样式 (建议放到 CSS 文件中)
@@ -218,15 +226,15 @@ function initCodeCopy() {
     copyBtn.addEventListener('click', () => {
       const code = codeBlock.innerText;
       navigator.clipboard.writeText(code).then(() => {
-        copyBtn.innerHTML = '<i class="fa fa-check"></i>';
+        copyBtn.innerHTML = '<i class="ri-check-line"></i>';
         setTimeout(() => {
-          copyBtn.innerHTML = '<i class="fa fa-copy"></i>';
+          copyBtn.innerHTML = '<i class="ri-file-copy-2-line"></i>';
         }, 2000);
         
         Qmsg.success("代码复制成功");
       }).catch(err => {
         console.error('复制失败:', err);
-        copyBtn.innerHTML = '<i class="fa fa-times"></i>';
+        copyBtn.innerHTML = '<i class="ri-close-line"></i>';
         Qmsg.error("复制失败");
       });
     });
@@ -235,11 +243,73 @@ function initCodeCopy() {
   });
 }
 
-// 页面加载完成后初始化 (Merged into main DOMContentLoaded listener)
-// document.addEventListener('DOMContentLoaded', function() {
-//   initCodeCopy();
-//   initDescriptionHitokoto();
-// });
+// 代码折叠功能
+function initCodeFold() {
+  const threshold = 360;
+
+  // Helper to wrap element
+  const wrap = (el, wrapper) => {
+      el.parentNode.insertBefore(wrapper, el);
+      wrapper.appendChild(el);
+  };
+
+  // 1. Process .highlight blocks (Hugo generated)
+  document.querySelectorAll('.highlight').forEach(hl => {
+    if (hl.closest('.code-fold-container')) return; // Avoid double processing
+    
+    // Check height
+    if (hl.scrollHeight > threshold) {
+      const wrapper = document.createElement('div');
+      wrapper.className = 'code-fold-container collapsed';
+      
+      // Wrap the highlight block
+      wrap(hl, wrapper);
+      
+      const btn = document.createElement('button');
+      btn.className = 'code-expand-btn';
+      // Use FontAwesome for reliability
+      btn.innerHTML = '<span><i class="fa fa-chevron-down" style="margin-right: 4px;"></i> 展开代码</span>';
+      
+      btn.addEventListener('click', () => {
+        wrapper.classList.remove('collapsed');
+        btn.remove();
+      });
+      
+      wrapper.appendChild(btn);
+    }
+  });
+
+  // 2. Process bare pre blocks (Fallback)
+  document.querySelectorAll('.post-content > pre').forEach(pre => {
+     if (pre.parentNode.classList.contains('highlight')) return; 
+     if (pre.closest('.code-fold-container')) return;
+     if (pre.closest('.code-wrapper')) return; // Old wrapper check
+
+     if (pre.scrollHeight > threshold) {
+       const wrapper = document.createElement('div');
+       wrapper.className = 'code-fold-container collapsed';
+       
+       wrap(pre, wrapper);
+       
+       const btn = document.createElement('button');
+       btn.className = 'code-expand-btn';
+       btn.innerHTML = '<span><i class="fa fa-chevron-down" style="margin-right: 4px;"></i> 展开代码</span>';
+       
+       btn.addEventListener('click', () => {
+         wrapper.classList.remove('collapsed');
+         btn.remove();
+       });
+       wrapper.appendChild(btn);
+     }
+  });
+}
+
+// 页面加载完成后初始化
+document.addEventListener('DOMContentLoaded', function() {
+  initCodeCopy();
+  initCodeFold();
+  initDescriptionHitokoto();
+});
 
 // 初始化个人描述一言切换
 function initDescriptionHitokoto() {
diff --git a/themes/Ying/assets/js/mypjax.js b/themes/Ying/assets/js/mypjax.js
index 44b99d6c..1af4f842 100644
--- a/themes/Ying/assets/js/mypjax.js
+++ b/themes/Ying/assets/js/mypjax.js
@@ -175,6 +175,8 @@ document.addEventListener("pjax:complete", function () {
     pjax_reload()
     // 初始化代码复制
     initCodeCopy()
+    // 初始化代码折叠
+    initCodeFold()
     // 重载评论
     if (typeof window.initArtalk === 'function') {
         window.initArtalk();