feat: 前端登录背景图

src/views/login/index.vue

@@ -113,11 +113,12 @@ onMounted(() => {
   display: flex;
   align-items: center;
   justify-content: center;
-  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+  background: url('@/assets/login-bg.png') center/cover no-repeat;
 }
 .login-box {
   width: 400px;
   padding: 20px;
+  transform: translateX(25vw);
 }
 .login-title {
   text-align: center;