diff --git a/src/components/FourCard.vue b/src/components/FourCard.vue
index 19c5de7..46efbae 100644
--- a/src/components/FourCard.vue
+++ b/src/components/FourCard.vue
@@ -47,7 +47,84 @@
     </div>
     <p class="ver_line"></p>
     <div class="card_container">
-      <img :src="Software" alt="icon" class="icon" />
+      <svg
+        class="icon"
+        version="1.1"
+        id="图层_1"
+        xmlns="http://www.w3.org/2000/svg"
+        xmlns:xlink="http://www.w3.org/1999/xlink"
+        x="0px"
+        y="0px"
+        viewBox="0 0 207 209"
+        style="enable-background: new 0 0 207 209"
+        xml:space="preserve"
+      >
+        <g>
+          <g>
+            <path
+              class="st0"
+              d="M15.2,37.67c0,1.36,0.73,2.62,1.91,3.3c1.18,0.68,2.63,0.68,3.81,0c1.18-0.68,1.91-1.94,1.91-3.3
+			c0-1.36-0.73-2.62-1.91-3.3c-1.18-0.68-2.63-0.68-3.81,0C15.93,35.05,15.2,36.3,15.2,37.67L15.2,37.67z M15.2,37.67"
+            />
+            <path
+              class="st0"
+              d="M40.62,37.67c0,1.36,0.73,2.62,1.9,3.3c1.18,0.68,2.63,0.68,3.81,0c1.18-0.68,1.9-1.94,1.9-3.3
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+            />
+            <path
+              class="st0"
+              d="M27.93,37.67c0,1.36,0.73,2.62,1.91,3.3c1.18,0.68,2.63,0.68,3.81,0c1.18-0.68,1.91-1.94,1.91-3.3
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+            />
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+              class="st0"
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+			 M101.59,77.33"
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+            />
+            <path
+              class="st0"
+              d="M158.09,126.07c-9.55,0-17.3,7.74-17.3,17.3s7.74,17.3,17.3,17.3c9.55,0,17.3-7.75,17.3-17.3
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+            />
+          </g>
+        </g>
+      </svg>
       <h3 class="card_title">软件定制</h3>
       <div class="desc">
         <p class="line">专业水下视学设备团队，研发出品多</p>
@@ -57,7 +134,81 @@
     </div>
     <p class="ver_line"></p>
     <div class="card_container">
-      <img :src="Structure" alt="icon" class="icon" />
+      <svg
+        version="1.1"
+        id="图层_1"
+        xmlns="http://www.w3.org/2000/svg"
+        xmlns:xlink="http://www.w3.org/1999/xlink"
+        x="0px"
+        y="0px"
+        class="icon"
+        viewBox="0 0 207 209"
+        style="enable-background: new 0 0 207 209"
+        xml:space="preserve"
+      >
+        <g>
+          <path
+            class="st0"
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+		c-0.77-2.3-0.21-4.8,1.47-6.54c3.45-3.58,8.79-6.66,13.6-7.85c0.52-0.13,1.03-0.2,1.57-0.2c1.84,0,3.61,0.79,4.84,2.17
+		c2.68,2.99,5.52,4.51,8.45,4.51c2.95,0,5.8-1.52,8.45-4.52c1.23-1.38,2.99-2.17,4.84-2.17c0.53,0,1.05,0.07,1.55,0.19
+		c4.83,1.22,10.17,4.3,13.61,7.86c1.67,1.73,2.23,4.24,1.47,6.55c-1.26,3.78-1.15,6.99,0.32,9.55c1.48,2.56,4.21,4.26,8.13,5.07
+		c2.37,0.49,4.25,2.23,4.91,4.55c1.37,4.77,1.37,10.93,0,15.69c-0.66,2.33-2.55,4.07-4.91,4.55c-3.92,0.8-6.66,2.5-8.14,5.06
+		c-1.47,2.55-1.58,5.77-0.32,9.56c0.77,2.3,0.2,4.8-1.48,6.54c-3.44,3.58-8.78,6.66-13.59,7.85
+		C157.55,88.64,157.04,88.71,156.5,88.71z M143.21,73.54c3.22,0,8.08,0.95,12.94,5.46l1.07,0.99l1.34-0.56
+		c1.72-0.72,3.48-1.74,4.96-2.86l1.16-0.88l-0.33-1.42c-1.48-6.44,0.14-11.14,1.75-13.94c1.6-2.78,4.84-6.51,11.19-8.48l1.39-0.43
+		l0.18-1.45c0.22-1.84,0.22-3.87,0-5.71l-0.18-1.45l-1.39-0.43c-6.35-1.97-9.59-5.7-11.19-8.48c-1.61-2.79-3.21-7.48-1.75-13.95
+		l0.32-1.42l-1.16-0.87c-1.49-1.13-3.25-2.14-4.96-2.86l-1.34-0.56l-1.06,0.99c-4.86,4.51-9.72,5.45-12.94,5.45
+		c-3.22,0-8.08-0.95-12.94-5.45l-1.06-0.99l-1.34,0.56c-1.64,0.69-3.39,1.7-4.94,2.85l-1.18,0.88l0.33,1.43
+		c1.48,6.44-0.14,11.14-1.75,13.94c-1.6,2.78-4.84,6.51-11.19,8.48l-1.39,0.43l-0.18,1.45c-0.22,1.84-0.22,3.86,0,5.7l0.18,1.45
+		l1.39,0.43c6.35,1.97,9.59,5.7,11.19,8.48c1.61,2.79,3.21,7.48,1.75,13.95l-0.32,1.41l1.15,0.88c1.48,1.12,3.24,2.14,4.96,2.86
+		l1.34,0.56l1.07-0.99C135.13,74.48,139.99,73.54,143.21,73.54z"
+          />
+        </g>
+      </svg>
       <h3 class="card_title">结构定制</h3>
       <div class="desc">
         <p class="line">专业水下视学设备团队，研发出品多</p>
@@ -67,7 +218,50 @@
     </div>
     <p class="ver_line"></p>
     <div class="card_container">
-      <img :src="Temp" alt="icon" class="icon" />
+      <svg
+        version="1.1"
+        id="图层_1"
+        xmlns="http://www.w3.org/2000/svg"
+        xmlns:xlink="http://www.w3.org/1999/xlink"
+        x="0px"
+        y="0px"
+        viewBox="0 0 207 209"
+        style="enable-background: new 0 0 207 209"
+        class="icon"
+        xml:space="preserve"
+      >
+        <g>
+          <path
+            class="st0"
+            d="M91.38,181.76c-7.55,0-13.7-6.15-13.7-13.71c0-7.55,6.15-13.7,13.7-13.7c7.56,0,13.7,6.15,13.7,13.7
+		C105.08,175.61,98.94,181.76,91.38,181.76z M91.38,165.19c-1.58,0-2.87,1.29-2.87,2.87c0,1.59,1.29,2.87,2.87,2.87
+		c1.58,0,2.87-1.29,2.87-2.87C94.25,166.47,92.96,165.19,91.38,165.19z M115.78,179.87c-4.43,0-8.01-2.04-9.59-5.44
+		c-1-2.14-1.07-4.65-0.2-7.05c1.21-3.31,4.07-6.21,7.85-7.97c2.22-1.03,4.59-1.57,6.85-1.57c1.52,0,2.96,0.24,4.28,0.73
+		c2.4,0.88,4.28,2.57,5.27,4.74c0.99,2.1,1.08,4.61,0.22,7.01c-1.19,3.3-4.04,6.21-7.84,7.99
+		C120.39,179.33,118.03,179.87,115.78,179.87z M116.79,154.3c-32.4,0-58.76-26.36-58.76-58.76c0-32.41,26.36-58.78,58.76-58.78
+		c32.4,0,58.76,26.37,58.76,58.78C175.55,127.94,149.19,154.3,116.79,154.3z M116.79,47.59c-26.43,0-47.93,21.51-47.93,47.95
+		c0,26.43,21.5,47.93,47.93,47.93c26.43,0,47.93-21.5,47.93-47.93C164.72,69.1,143.22,47.59,116.79,47.59z"
+          />
+          <path
+            class="st0"
+            d="M39.67,208c-1.56,0-3.11-0.39-4.49-1.13l-12.74-6.89c-2.2-1.17-3.84-3.17-4.57-5.61
+		c-0.72-2.37-0.45-5,0.73-7.2l4.56-10.65c-3.34-2.9-6.51-6.05-9.46-9.38L12,165.2l0.51-2.93L51.31,8.75l2.7-1.23
+		c11.27-4.15,22.86-6.24,34.5-6.24c26.68,0,51.75,10.39,70.61,29.25c18.86,18.86,29.25,43.94,29.25,70.62
+		c0,17.99-4.82,35.57-13.95,50.96c0,0.09-0.01,0.17-0.01,0.26l18.44,24.75c3.18,3.6,2.83,9.58-1.04,13.04l-10.8,9.63
+		c-1.78,1.56-4.01,2.4-6.33,2.4c-2.7,0-5.27-1.14-7.05-3.14l-19.19-18.01c-7.79,5.86-16.34,10.51-25.48,13.88
+		c-11.02,4.05-22.61,6.1-34.44,6.1c-12.05,0-23.79-2.12-34.95-6.32l-5.75,8.73c-0.97,1.84-2.95,3.46-5.36,4.19
+		C41.57,207.86,40.63,208,39.67,208z M39.23,196.74l19.16-29.08l0.62-0.08c-1.77-1.97-4.56-4.07-7.73-5.77
+		c-3.51-1.89-6.66-2.87-8.88-3.24l0.04,0.07l-0.94,2.67l-12.78,29.74L39.23,196.74z M149.41,167.23l1.75,1.48l23.57,22.17l8.93-7.97
+		l-20.8-27.92l0.13-0.6c-2.11,0.86-5.01,2.58-8.03,5.28c-3.31,2.95-5.28,5.68-6.29,7.57H149.41z M59.7,185.37
+		c9.25,3.18,18.92,4.8,28.82,4.8c10.56,0,20.89-1.83,30.71-5.44c6.85-2.52,13.34-5.86,19.37-9.97c-0.91-1.26-1.75-3.18-1.6-5.86
+		c0.3-5.13,4.32-11.61,10.76-17.33c6.08-5.44,12.7-8.69,17.7-8.69l0.67,0.02c0.35,0.02,0.68,0.05,0.99,0.1
+		c6.83-12.84,10.43-27.21,10.43-41.86c0-23.78-9.26-46.14-26.08-62.96c-16.82-16.81-39.17-26.07-62.95-26.07
+		c-9.43,0-18.86,1.55-28.05,4.62L23.74,162.05c1.28,1.36,2.6,2.67,3.95,3.94l2.93-6.83c-0.99-3.19-0.22-5.56,0.44-6.81
+		c1-1.84,3.51-4.8,9.53-4.8c4.56,0,10.19,1.67,15.84,4.71c4.55,2.46,8.51,5.53,11.13,8.63c5.05,5.97,3.89,10.42,2.75,12.53
+		c-0.69,1.27-2.25,3.26-5.5,4.19L59.7,185.37z"
+          />
+        </g>
+      </svg>
       <h3 class="card_title">硬件定制</h3>
       <div class="desc">
         <p class="line">专业水下视学设备团队，研发出品多</p>
diff --git a/src/components/Header.vue b/src/components/Header.vue
index 75ddfe7..18da072 100644
--- a/src/components/Header.vue
+++ b/src/components/Header.vue
@@ -1,7 +1,15 @@
 <template>
-  <div :class="detail ? 'header_container detail_header' : 'header_container'">
+  <div
+    :class="
+      detail
+        ? 'header_container detail_header'
+        : noFirst
+        ? 'header_container noFirst_header'
+        : 'header_container'
+    "
+  >
     <img
-      :src="detail ? Logo1 : Logo"
+      :src="detail || noFirst ? Logo1 : Logo"
       alt="logo"
       class="logo_img"
       @click="toHome()"
@@ -35,6 +43,9 @@ const props = defineProps({
   detail: {
     type: Boolean,
   },
+  noFirst: {
+    type: Boolean,
+  },
 })
 onMounted(() => {
   const path = route.path
@@ -65,10 +76,11 @@ const toHome = () => {
   display: flex;
   align-items: center;
   justify-content: space-between;
-  position: absolute;
+  position: fixed;
   top: 0;
   left: 0;
   right: 0;
+  z-index: 999;
   .logo_img {
     width: 216px;
     height: 44px;
@@ -100,4 +112,11 @@ const toHome = () => {
     color: #000;
   }
 }
+.noFirst_header {
+  background: #ffffff;
+  border-bottom: solid 1px #ededed;
+  .tab_group {
+    color: #000;
+  }
+}
 </style>
diff --git a/src/components/HomeScreen.vue b/src/components/HomeScreen.vue
index a3fb197..aedae1d 100644
--- a/src/components/HomeScreen.vue
+++ b/src/components/HomeScreen.vue
@@ -1,6 +1,5 @@
 <template>
   <div class="home_screen_container">
-    <Header />
     <h1 class="main_title">
       做铁路相关的设备<span class="sign">研发和制造</span>
     </h1>
@@ -21,14 +20,11 @@
           p-id="2387"
         ></path>
       </svg>
-      <!-- <img :src="Arrow" alt="arrow" class="arrow" /> -->
     </div>
   </div>
 </template>
 
 <script setup>
-import Header from '@/components/Header'
-import Arrow from '@/static/img/index/jiantou.png'
 const toNextPage = () => {
   document.getElementById('about_us').scrollIntoView({
     behavior: 'smooth',
diff --git a/src/components/detail/Overview.vue b/src/components/detail/Overview.vue
index f32f123..9e2c34a 100644
--- a/src/components/detail/Overview.vue
+++ b/src/components/detail/Overview.vue
@@ -1,5 +1,5 @@
 <template>
-  <div class="overview_container">
+  <div class="overview_container" id="product_overview">
     <Header :detail="true" />
     <div class="product_infos">
       <div class="main" v-if="activeTab == 0">1</div>
diff --git a/src/pages/Product.vue b/src/pages/Product.vue
index 36778ce..616d7cc 100644
--- a/src/pages/Product.vue
+++ b/src/pages/Product.vue
@@ -18,6 +18,12 @@ import RelativeMerits from '@/components/detail/RelativeMerits'
 import Parameter from '@/components/detail/Parameter'
 import Contact from '@/components/Contact'
 import Bottom from '@/components/Bottom'
+import { onMounted } from 'vue'
+onMounted(() => {
+  document.getElementById('product_overview').scrollIntoView({
+    behavior: 'smooth',
+  })
+})
 </script>
 
 <style lang="scss" scoped>
diff --git a/src/pages/index.vue b/src/pages/index.vue
index 99c259a..eeb5ff1 100644
--- a/src/pages/index.vue
+++ b/src/pages/index.vue
@@ -1,5 +1,6 @@
 <template>
   <div class="main_container">
+    <Header :noFirst="isDetail" />
     <HomeSceen />
     <AboutUs />
     <Product />
@@ -12,8 +13,23 @@
 import HomeSceen from '@/components/HomeScreen'
 import AboutUs from '@/components/AboutUs'
 import Product from '@/components/Product'
+import Header from '@/components/Header'
 import Contact from '@/components/Contact'
 import Bottom from '@/components/Bottom'
+import { onMounted, ref } from 'vue'
+const isDetail = ref(false)
+onMounted(() => {
+  window.addEventListener('scroll', () => {
+    const scrollTop =
+      document.documentElement.scrollTop || document.body.scrollTop
+
+    if (scrollTop === 0) {
+      isDetail.value = false
+    } else {
+      isDetail.value = true
+    }
+  })
+})
 </script>
 
 <style scoped lang="scss"></style>