feat(ui): refine profile workflows and visual system

custom-tab-bar/index.wxss

@@ -7,8 +7,10 @@
   display: flex;
   min-height: 112rpx;
   padding-bottom: env(safe-area-inset-bottom);
-  border-top: 1rpx solid #edf1f6;
-  background: #ffffff;
+  border-top: 1rpx solid rgba(209, 209, 214, 0.72);
+  background: rgba(248, 250, 252, 0.92);
+  -webkit-backdrop-filter: blur(24rpx) saturate(180%);
+  backdrop-filter: blur(24rpx) saturate(180%);
 }
 
 .tab-item {
@@ -19,11 +21,17 @@
   justify-content: center;
   gap: 6rpx;
   min-height: 112rpx;
-  color: #8995a5;
+  color: #8e8e93;
+  transition: transform 140ms cubic-bezier(0.23, 1, 0.32, 1);
+  transform-origin: center;
 }
 
 .tab-item-active {
-  color: #2b67e8;
+  color: #007aff;
+}
+
+.tab-item:active {
+  transform: scale(0.96);
 }
 
 .tab-glyph {
@@ -36,3 +44,21 @@
   font-size: 24rpx;
   line-height: 1.2;
 }
+
+@media (prefers-reduced-motion: reduce) {
+  .tab-item {
+    transition: none;
+  }
+
+  .tab-item:active {
+    transform: none;
+  }
+}
+
+@media (prefers-reduced-transparency: reduce) {
+  .tabbar {
+    background: #f8fafc;
+    -webkit-backdrop-filter: none;
+    backdrop-filter: none;
+  }
+}