fix: 优化图标。

src/pages/login.vue

@@ -245,15 +245,43 @@ page {
     
     .logo-wrapper {
       display: inline-block;
-      margin-bottom: 32rpx;
-      
+      margin-bottom: 40rpx;
+      position: relative;
+
+      &::before {
+        content: '';
+        position: absolute;
+        top: 50%;
+        left: 50%;
+        transform: translate(-50%, -50%);
+        width: 220rpx;
+        height: 220rpx;
+        border-radius: 50%;
+        background: radial-gradient(circle, rgba(255, 255, 255, 0.25) 0%, rgba(255, 255, 255, 0.05) 50%, transparent 70%);
+        z-index: -1;
+      }
+
+      &::after {
+        content: '';
+        position: absolute;
+        top: 50%;
+        left: 50%;
+        transform: translate(-50%, -50%);
+        width: 190rpx;
+        height: 190rpx;
+        border-radius: 50%;
+        border: 2rpx solid rgba(255, 255, 255, 0.15);
+        z-index: -1;
+      }
+
       .logo-image {
-        width: 142rpx;
+        width: 140rpx;
         height: 140rpx;
-        border-radius: 36rpx;
-        box-shadow: 0 15rpx 28rpx rgba(0, 0, 0, 0.2);
+        border-radius: 32rpx;
+        box-shadow: 0 12rpx 32rpx rgba(0, 0, 0, 0.25);
         background: #ffffff;
-        padding: 0rpx;
+        padding: 8rpx;
+        box-sizing: border-box;
       }
     }