diff --git a/common/common.css b/common/common.css
index a184773..bc1752b 100644
--- a/common/common.css
+++ b/common/common.css
@@ -967,6 +967,27 @@
 }
 
 
+/* 回到顶部按钮特殊样式 */
+.aside-tools .tools-list .tools-item.back-top {
+  cursor: pointer;
+  background: rgba(56, 189, 248, 0.15);
+  transition: all 0.3s ease;
+}
+
+.aside-tools .tools-list .tools-item.back-top:hover {
+  background: linear-gradient(135deg, #38BDF8 0%, #6366F1 100%);
+  box-shadow: 0 4px 16px rgba(56, 189, 248, 0.4);
+}
+
+.aside-tools .tools-list .tools-item.back-top img {
+  transition: transform 0.3s ease;
+}
+
+.aside-tools .tools-list .tools-item.back-top:hover img {
+  transform: translateY(-3px);
+}
+
+
 .flex-none {
   flex-wrap: none !important;
 }
diff --git a/common/common.js b/common/common.js
index 7dc7883..48eec4b 100644
--- a/common/common.js
+++ b/common/common.js
@@ -105,21 +105,21 @@ $(function () {
       $(".login-in").attr("style", "display:none");
       $(".no-login").attr("style", "display:block");
     }
-  };
-  // 设置通用信息相关的点击跳转（云服务器/物理机 CTA 等），来源于 SSR 注入的 window.__themeCommon
-  const setCommData = () => {
-    const commentObj = window.__themeCommon || {};
-    $(".buy-cloud").click(function () {
-      if (commentObj.cloud_product_link) {
-        location.href = commentObj.cloud_product_link;
-      }
-    });
-    $(".buy-dcim-btn").click(function () {
-      if (commentObj.dcim_product_link) {
-        location.href = commentObj.dcim_product_link;
-      }
-    });
-  };
+  };
+  // 设置通用信息相关的点击跳转（云服务器/物理机 CTA 等），来源于 SSR 注入的 window.__themeCommon
+  const setCommData = () => {
+    const commentObj = window.__themeCommon || {};
+    $(".buy-cloud").click(function () {
+      if (commentObj.cloud_product_link) {
+        location.href = commentObj.cloud_product_link;
+      }
+    });
+    $(".buy-dcim-btn").click(function () {
+      if (commentObj.dcim_product_link) {
+        location.href = commentObj.dcim_product_link;
+      }
+    });
+  };
   // 跳转函数
   const goOtherPage = (url) => {
     sessionStorage.redirectUrl = location.href;
@@ -221,11 +221,11 @@ $(function () {
     $("#shopping-cart").click(function () {
       location.href = "/cart/shoppingCar.htm";
     });
-  }
-  function initFooter() {
-    // 主题配置已在服务端渲染阶段注入到 window.__themeCommon，这里只做少量点击事件绑定
-    setCommData();
-  }
+  }
+  function initFooter() {
+    // 主题配置已在服务端渲染阶段注入到 window.__themeCommon，这里只做少量点击事件绑定
+    setCommData();
+  }
   // 首页渲染
   // $("#header").load("/web/BlackFruit-web/public/header.html", function () {
   //   initHeader();
@@ -237,26 +237,26 @@ $(function () {
   // });
   initFooter();
 
-  const resize = function () {
-    const width = $(window).width();
-    const num = width / 1400;
-    if (1000 < width && width < 1440) {
-      // 为了避免首页 3D 粒子地球被横向压扁，这里不再对首页 banner 区域做 scaleX，仅对其他 section 生效
-      $("section")
-        .not(".banner")
-        .each(function () {
-          this.style.width = "1400px";
-          this.style.transform = "scaleX(" + num + ")";
-          this.style.transformOrigin = "0 0";
-        });
-    } else {
-      $("section").each(function () {
-        this.style.width = "";
-        this.style.transform = "";
-        this.style.transformOrigin = "";
-      });
-    }
-  };
+  const resize = function () {
+    const width = $(window).width();
+    const num = width / 1400;
+    if (1000 < width && width < 1440) {
+      // 为了避免首页 3D 粒子地球被横向压扁，这里不再对首页 banner 区域做 scaleX，仅对其他 section 生效
+      $("section")
+        .not(".banner")
+        .each(function () {
+          this.style.width = "1400px";
+          this.style.transform = "scaleX(" + num + ")";
+          this.style.transformOrigin = "0 0";
+        });
+    } else {
+      $("section").each(function () {
+        this.style.width = "";
+        this.style.transform = "";
+        this.style.transformOrigin = "";
+      });
+    }
+  };
   resize();
   window.addEventListener("resize", resize);
 
@@ -314,4 +314,23 @@ $(function () {
   $(".go-ticket-btn").click(function () {
     location.href = "home.htm";
   });
+
+  // 回到顶部功能
+  $("#backTop").click(function () {
+    $("html, body").animate({ scrollTop: 0 }, 600);
+  });
+
+  // 根据滚动位置显示/隐藏回到顶部按钮
+  $(window).scroll(function () {
+    if ($(this).scrollTop() > 300) {
+      $("#backTop").fadeIn();
+    } else {
+      $("#backTop").fadeOut();
+    }
+  });
+
+  // 初始化时隐藏回到顶部按钮
+  if ($(window).scrollTop() <= 300) {
+    $("#backTop").hide();
+  }
 });
diff --git a/css/index.css b/css/index.css
index 36df0f6..6c1e578 100644
--- a/css/index.css
+++ b/css/index.css
@@ -144,8 +144,8 @@
   justify-content: center !important;
   gap: 8px !important;
   padding: 0 48px !important;
-  font-size: 14px !important;
-  font-weight: 500 !important;
+  font-size: 16px !important;
+  font-weight: 600 !important;
   color: #ffffff !important;
   background: linear-gradient(135deg, #38BDF8 0%, #6366F1 100%) !important;
   border: none !important;
@@ -159,6 +159,7 @@
   min-width: 140px !important;
   flex-shrink: 0 !important;
   box-shadow: none !important;
+  z-index: 1 !important;
 }
 
 /* 注册按钮图标 */
@@ -172,7 +173,7 @@
   background-repeat: no-repeat;
   background-position: center;
   position: relative;
-  z-index: 2;
+  z-index: 3;
   flex-shrink: 0;
 }
 
@@ -188,7 +189,7 @@
   opacity: 0;
   transition: opacity 0.3s ease;
   pointer-events: none;
-  z-index: 1;
+  z-index: 0;
 }
 
 #index .no-login .btn.btn-normal#registBtn:hover {
diff --git a/public/header.html b/public/header.html
index 60f1936..5fbbc81 100644
--- a/public/header.html
+++ b/public/header.html
@@ -95,6 +95,11 @@
 <!-- 侧边 -->
 <div class="aside-tools">
   <div class="tools-list">
+    <!-- 回到顶部按钮 - 固定在第一位 -->
+    <div class="tools-item back-top" id="backTop">
+      <img src="/web/BlackFruit-web/assets/img/index/top.png" alt="回到顶部">
+    </div>
+
     {if ( isset($data.side_floating_window) ) }
     {foreach $data.side_floating_window as $key=>$value}
     <div class="tools-item">