/* A short charcoal bridge links the operational problem to the ecosystem.
   Light/dark chapter changes and reading surfaces retain their contrast. */
#produto .hub-sticky::after{
 content:"";
 position:absolute;
 inset:0 0 auto;
 height:clamp(96px,18svh,160px);
 z-index:1;
 pointer-events:none;
 background:linear-gradient(180deg,#292a27 0%,#232420 24%,#191a17 62%,#121310 100%)!important;
}