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/frontend/enhancements/modal-motion/form.css

@@ -22,7 +22,7 @@
 .aksrt-modal-auth__field label {
     display: block;
     font-size: 13px;
-    font-weight: 500;
+    font-weight: normal;
     color: var(--color-ink-2);
     margin-bottom: 6px;
 }
@@ -31,7 +31,7 @@
     width: 100%;
     padding: 10px 14px;
     border: 1px solid var(--color-line);
-    border-radius: 10px;
+    border-radius: var(--main-radius, 8px);
     font-size: 14px;
     color: var(--color-ink);
     background: var(--surface-1, #fff);
@@ -96,7 +96,7 @@
     width: 100%;
     padding: 12px;
     border: none;
-    border-radius: 10px;
+    border-radius: var(--main-radius, 8px);
     background: var(--color-primary, var(--color-primary));
     color: #fff;
     font-size: 15px;