fix(visual): 1:1 banner/hero/modal + strip non-zibll card chrome

Align banner s-desc caption/scale-height, hero search pill and -40px cards, modal colorful header/spring scale; remove white/pink card borders and hover lifts across mainline surfaces.

assets/css/routes/user-center/shell.css

@@ -55,7 +55,7 @@
 
 .uc-sidebar__section {
   background: var(--surface-1);
-  border-radius: var(--radius-lg, 10px);
+  border-radius: var(--main-radius, var(--radius, 8px));
   padding: 16px;
   box-shadow: 0 1px 4px rgba(15, 23, 42, 0.04);
   border: 1px solid var(--color-line-soft, transparent);
@@ -92,7 +92,7 @@
 
 .uc-stats__item:hover {
   background: var(--color-primary-soft);
-  transform: translateY(-2px);
+  transform: none;
   box-shadow: 0 4px 8px rgba(0,0,0,0.06);
 }
 
@@ -254,7 +254,7 @@
 
 .uc-content .dashboard-panel {
   background: var(--surface-1);
-  border-radius: var(--radius-lg, 10px);
+  border-radius: var(--main-radius, var(--radius, 8px));
   padding: 24px;
   box-shadow: 0 1px 4px rgba(15, 23, 42, 0.04);
   border: 1px solid var(--color-line-soft, transparent);