fix(ui): 对齐所有页面样式到 Pencil 设计规范

transfer_page.dart:
- 金色主题统一（Light: secondary #F59E0B, Dark: primary #D4AF37）
- 修复交换按钮和确认按钮颜色

home_page.dart:
- Asset Card 圆角 14px
- 总资产字号 28px (displayLarge)
- "预估总资产"字号 13px (bodyLarge)
- 盈亏标签/数值字重调整

quick_actions_row.dart:
- padding 统一为 16px

welfare_center_page.dart:
- _statusBadge padding [6, 14]

trade_form_card.dart / price_card.dart:
- 样式细节对齐

flutter_monisuo/build/web/main.dart.js_87.part.js

@@ -1,7 +1,7 @@
 ((a,b)=>{a[b]=a[b]||{}})(self,"$__dart_deferred_initializers__")
 $__dart_deferred_initializers__.current=function(a,b,c,$){var B,A={
 b5O(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
-u=new A.a_f(v,u)
+u=new A.a_e(v,u)
 u.bg(d,w,e,w)
 y=u.a
 x=v.r
@@ -23,38 +23,38 @@ break A}if("input.selectAll"===e){y="\u0b38\u0b2c\u0b41 \u0b1a\u0b5f\u0b28 \u0b1
 break A}if("keyboardToolbar.done"===e){y="\u0b38\u0b2e\u0b4d\u0b2a\u0b28\u0b4d\u0b28"
 break A}y=null
 break A}return y},
-bp2(d){return new A.aU3(d)},
-a_f:function a_f(d,e){var _=this
+bp2(d){return new A.aU4(d)},
+a_e:function a_e(d,e){var _=this
 _.r=d
 _.z=_.w=$
 _.a=e
 _.e=_.b=$},
-aQh:function aQh(){},
-aU3:function aU3(d){this.a=d},
-abj:function abj(){}}
+aQi:function aQi(){},
+aU4:function aU4(d){this.a=d},
+abi:function abi(){}}
 B=c[0]
 A=a.updateHolder(c[58],A)
-A.a_f.prototype={
+A.a_e.prototype={
 h(d,e){var y=this.r.a4(e)
 return y==null?this.a.a4(e):y},
 gb8(){var y=this,x=y.z
 if(x===$){if(y.w===$)y.w=y
-x=y.z=new A.aQh()}return x},
+x=y.z=new A.aQi()}return x},
 gbc(){return this.r}}
-A.aQh.prototype={
+A.aQi.prototype={
 gbi(){return"\u0b15\u0b1f"},
 gbh(){return"\u0b15\u0b2a\u0b3f"},
 gbj(){return"\u0b2a\u0b47\u0b37\u0b4d\u0b1f"},
 gbf(){return"\u0b38\u0b2c\u0b41 \u0b1a\u0b5f\u0b28 \u0b15\u0b30\u0b28\u0b4d\u0b24\u0b41"}}
-A.abj.prototype={}
+A.abi.prototype={}
 var z=a.updateTypes([])
-A.aU3.prototype={
+A.aU4.prototype={
 $1(d){return A.bnJ(this.a,d)},
 $S:2};(function inheritance(){var y=a.mixin,x=a.inherit
-x(A.abj,B.a_)
-x(A.a_f,A.abj)
-x(A.aQh,B.b2)
-x(A.aU3,B.aU)
-y(A.abj,B.b0)})()
-B.b8(b.typeUniverse,JSON.parse('{"a_f":{"a_":[]}}'))};
-(a=>{a["1rDqzThYcQLEuKT0NKMJvnaSbN0="]=a.current})($__dart_deferred_initializers__);
+x(A.abi,B.a_)
+x(A.a_e,A.abi)
+x(A.aQi,B.b2)
+x(A.aU4,B.aU)
+y(A.abi,B.b0)})()
+B.b8(b.typeUniverse,JSON.parse('{"a_e":{"a_":[]}}'))};
+(a=>{a["tIIsmvqiIkLHemiIbcCykJysmH8="]=a.current})($__dart_deferred_initializers__);