diff --git a/themes/Ying/assets/css/main.css b/themes/Ying/assets/css/main.css
index a906d8ed..c06e6aa7 100644
--- a/themes/Ying/assets/css/main.css
+++ b/themes/Ying/assets/css/main.css
@@ -3504,66 +3504,60 @@ input[type=submit] {
 /* GenericOutput */ [data-theme="dark"] .chroma .go { color:#44475a }
 /* GenericPrompt */ [data-theme="dark"] .chroma .gp {  }
 
+/* Floating Tools */
 /* Floating Tools */
 .floating-tools {
     position: fixed;
-    bottom: 28px;
+    bottom: 24px;
     right: 16px;
     z-index: 900;
     display: flex;
     flex-direction: column;
     gap: 8px;
     align-items: center;
-    transform: translateZ(0);
-    will-change: transform;
     opacity: 1;
     visibility: visible;
-    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
+    transition: opacity 0.2s ease, visibility 0.2s ease;
 }
-
 .floating-tools.hidden {
     opacity: 0 !important;
     visibility: hidden !important;
-    transform: translateZ(0) translateY(12px) !important;
     pointer-events: none !important;
 }
-
 .floating-tools a {
-    width: 42px;
-    height: 42px;
-    background: rgba(255, 255, 255, 0.94);
-    color: rgba(24, 24, 27, 0.86);
+    width: 36px;
+    height: 36px;
+    background: rgba(255, 255, 255, 0.6);
+    backdrop-filter: blur(12px);
+    -webkit-backdrop-filter: blur(12px);
+    color: rgba(24, 24, 27, 0.75);
     border-radius: 50%;
-    font-size: 20px;
+    font-size: 17px;
     cursor: pointer;
     text-decoration: none;
     display: flex;
     justify-content: center;
     align-items: center;
-    -webkit-backdrop-filter: none;
-    backdrop-filter: none;
-    border: 1px solid rgba(0, 0, 0, 0.08);
-    box-shadow: 0 6px 18px rgba(15, 23, 42, 0.12);
-    transform: translateZ(0);
-    transition: background 0.2s ease, transform 0.2s ease;
+    border: 1px solid rgba(255, 255, 255, 0.3);
+    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.08);
+    transition: all 0.2s ease;
 }
-
 .floating-tools a:hover {
-    background: #fff;
-    transform: translateZ(0) translateY(-2px);
-    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.16);
+    background: rgba(255, 255, 255, 0.85);
+    color: rgba(24, 24, 27, 0.95);
+    transform: translateY(-1px);
+    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.12);
 }
-
 [data-theme="dark"] .floating-tools a {
-    background: rgba(30, 41, 59, 0.94);
-    color: rgba(241, 245, 249, 0.9);
-    border-color: rgba(148, 163, 184, 0.22);
-    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.34);
+    background: rgba(30, 41, 59, 0.6);
+    color: rgba(241, 245, 249, 0.75);
+    border-color: rgba(148, 163, 184, 0.15);
+    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
 }
-
 [data-theme="dark"] .floating-tools a:hover {
-    background: rgba(51, 65, 85, 0.98);
-    box-shadow: 0 12px 26px rgba(0, 0, 0, 0.42);
+    background: rgba(30, 41, 59, 0.85);
+    color: rgba(241, 245, 249, 0.95);
+    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
 }
 
 /* ── ViewImage — Apple-style lightbox ── */
diff --git a/themes/Ying/assets/js/modules/mypjax.js b/themes/Ying/assets/js/modules/mypjax.js
index d9435861..505138f7 100644
--- a/themes/Ying/assets/js/modules/mypjax.js
+++ b/themes/Ying/assets/js/modules/mypjax.js
@@ -94,89 +94,54 @@ document.addEventListener("pjax:success", function () {
 });
 
 // pjax加载完成
-// 代码折叠初始化 — 独立监听器，确保不被其他初始化错误影响
 document.addEventListener("pjax:complete", function () {
-    setTimeout(function() {
-        if (typeof window.initCodeFold === 'function') window.initCodeFold();
-    }, 200);
-});
-
-document.addEventListener("pjax:complete", function () {
-    // pjax完成动画
-    if (typeof NProgress !== 'undefined') {
-        NProgress.done();
-    }
-
-    // 重载一些js样式调整
+    // 立即执行：进度条、基础 UI
+    if (typeof NProgress !== 'undefined') NProgress.done();
     pjax_reload();
 
-    // 初始化代码复制
-    if (typeof initCodeCopy === 'function') initCodeCopy();
-
-    // 初始化段落评论
-    if (typeof window.initParagraphComments === 'function') {
-        try {
-            window.initParagraphComments();
-        } catch (e) {
-            console.error('initParagraphComments error:', e);
+    // 下一帧执行：轻量初始化
+    requestAnimationFrame(function() {
+        if (typeof initCodeCopy === 'function') initCodeCopy();
+        if (typeof window.initSearch === 'function') {
+            try { window.initSearch(); } catch(e) {}
         }
-    }
+        if (typeof window.refreshFloatingTools === 'function') {
+            window.refreshFloatingTools();
+        } else if (typeof window.initFloatingTools === 'function') {
+            try { window.initFloatingTools(); } catch(e) {}
+        }
+        // 文章动画
+        if (typeof window.initPostScrollspy === 'function') window.initPostScrollspy();
+    });
 
-    // 初始化无限加载
-    if (typeof window.initInfiniteScroll === 'function' && window.enableInfiniteScroll) {
-        window.initInfiniteScroll();
-    }
-    
-    // 初始化友链状态
-    if (typeof window.initLinkStatus === 'function') {
-        try {
-            window.initLinkStatus();
-        } catch(e) { console.error('initLinkStatus error:', e); }
-    }
-    
-    // 重载评论
-    if (typeof window.initArtalk === 'function') {
-        try {
-            window.initArtalk();
-        } catch(e) { console.error('initArtalk error:', e); }
-    }
-    
-    // 重载不蒜子统计
-    if (typeof window.bsz_fetch === 'function') {
-        try {
-            window.bsz_fetch();
-        } catch(e) { console.error('bsz_fetch error:', e); }
-    }
-    
-    // 重载 Search 和 Floating Tools (Moved from main.js)
-    if (typeof window.refreshFloatingTools === 'function') {
-        window.refreshFloatingTools();
-    } else if (typeof window.initFloatingTools === 'function') {
-        requestAnimationFrame(function() {
-            try {
-                window.initFloatingTools();
-            } catch(e) { console.error('initFloatingTools error:', e); }
-        });
-    }
-    if (typeof window.initSearch === 'function') {
-        try {
-            window.initSearch();
-        } catch(e) { console.error('initSearch error:', e); }
-    }
+    // 空闲时执行：非关键功能
+    var idle = window.requestIdleCallback || function(fn) { return setTimeout(fn, 200); };
+    idle(function() {
+        if (typeof window.initParagraphComments === 'function') {
+            try { window.initParagraphComments(); } catch(e) {}
+        }
+        if (typeof window.initInfiniteScroll === 'function' && window.enableInfiniteScroll) {
+            window.initInfiniteScroll();
+        }
+        if (typeof window.initLinkStatus === 'function') {
+            try { window.initLinkStatus(); } catch(e) {}
+        }
+        if (typeof window.initArtalk === 'function') {
+            try { window.initArtalk(); } catch(e) {}
+        }
+        if (typeof window.bsz_fetch === 'function') {
+            try { window.bsz_fetch(); } catch(e) {}
+        }
+        if (typeof window.initImageFrameReveal === 'function') {
+            try { window.initImageFrameReveal(); } catch(e) {}
+        }
+        // 链接卡片和中英文间距（DOM 扫描，非关键）
+        if (typeof window.initLinkify === 'function') window.initLinkify();
+        if (typeof window.initPangu === 'function') window.initPangu();
+    });
 
-    // 重载图片框架滚动显示
-    if (typeof window.initImageFrameReveal === 'function') {
-        try {
-            window.initImageFrameReveal();
-        } catch(e) { console.error('initImageFrameReveal error:', e); }
-    }
-
-    // 重载文章动画
-    if (typeof window.initPostScrollspy === 'function') window.initPostScrollspy();
-    // 重载链接卡片
-    if (typeof window.initLinkify === 'function') window.initLinkify();
-    // 重载中英文间距
-    if (typeof window.initPangu === 'function') window.initPangu();
-
-    refreshHeatmap();
+    // 延迟：代码折叠
+    setTimeout(function() {
+        if (typeof window.initCodeFold === 'function') window.initCodeFold();
+    }, 300);
 });
diff --git a/themes/Ying/layouts/_default/single.html b/themes/Ying/layouts/_default/single.html
index 881a7dd7..ac17c104 100644
--- a/themes/Ying/layouts/_default/single.html
+++ b/themes/Ying/layouts/_default/single.html
@@ -28,10 +28,11 @@
         function initPostScrollspy() {
             var content = document.getElementById('post-writing');
             if (!content) return;
-            content.querySelectorAll('h2, h3, h4, p, ul, ol, blockquote, table').forEach(function(el) {
+            // 只给关键元素加动画，减少 observer 数量
+            content.querySelectorAll('h2, h3, blockquote, table, figure').forEach(function(el) {
                 if (!el.hasAttribute('uk-scrollspy')) el.setAttribute('uk-scrollspy', 'cls: uk-animation-fade; delay: 60');
             });
-            content.querySelectorAll('figure, img, .post-video, .link-card').forEach(function(el) {
+            content.querySelectorAll('.post-video, .link-card').forEach(function(el) {
                 if (!el.hasAttribute('uk-scrollspy')) el.setAttribute('uk-scrollspy', 'cls: uk-animation-slide-bottom-small; delay: 100');
             });
         }