修改登录页面

src/views/login.vue

 <template>
   <div class="login" :style="{ backgroundImage: `url(${bg})` }">
     <div class="title">
-      <div class="login-logo">
+      <!-- <div class="login-logo">
         <van-image width="48" height="48" :src="require('@/assets/imgs/logo.png')" />
         <span style="margin-left: 6px">融通危险源辨识系统</span>
-      </div>
+      </div> -->
       <!-- <div class="login-name">Enterprise Business Data Monitoring</div> -->
     </div>
 
     <div class="con" :style="{ backgroundImage: `url(${conBg})` }">
-      <div class="hello">Hello!</div>
-      <div class="welcome">欢迎登录<span></span>!</div>
+      <div class="hello">融通危险源辨识系统</div>
+      <div class="welcome">用户登录<span></span></div>
       <div class="login-form">
         <van-form @submit="onSubmit" :show-error-message="false" validate-trigger="onSubmit">
           <div class="username-wrap">
@@ -151,15 +151,15 @@ export default {
 <style lang="less" scoped>
 /* @import url(); 引入css类 */
 .login {
-  background-size: cover;
+  background-size: 100% auto;
   background-repeat: no-repeat;
   background-attachment: fixed;
   height: 100vh;
   overflow: auto;
+  position: relative;
+  background-color: #fff;
 
   .title {
-    padding-top: 22%;
-
     .login-logo {
       margin: 0 auto;
       font-size: 26px;
@@ -181,23 +181,32 @@ export default {
   }
 
   .con {
-    width: 345px;
+    width: 320px;
     height: 340px;
-    margin: 62px auto 0;
+    margin: auto;
     padding: 35px 25px;
     box-sizing: border-box;
     background-size: cover;
     background-repeat: no-repeat;
+    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
+    border-radius: 10px;
+    position: absolute;
+    top: 50vh;
+    left: 50%;
+    transform: translate(-50%, -120px);
 
     .hello {
       color: #004fb1;
-      font-size: 20px;
+      font-size: 24px;
       font-weight: bold;
+      text-align: center;
     }
 
     .welcome {
       margin: 15px 0;
       color: #7795e0;
+      text-align: center;
+      font-size: 18px;
 
       span {
         color: #71aaf2;