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/credits.css

@@ -173,7 +173,7 @@
 /* 积分流水 */
 .uc-transactions {
   background: var(--surface-1);
-  border-radius: var(--radius-lg, 10px);
+  border-radius: var(--main-radius, var(--radius, 8px));
   border: 1px solid var(--color-line-soft, rgba(0,0,0,0.06));
   overflow: hidden;
 }