.nav-seccion ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-seccion li {
  border-bottom: 1px solid #e5e7eb;
}
.nav-seccion li a {
  display: block;
  padding: 14px 0;
  font-size: 18px;
  color: #111;
  text-decoration: none;
}
.nav-seccion .current_page_item > a,
.nav-seccion .current_page_ancestor > a {
  color: #2563eb;
  font-weight: 600;
}

/* subpáginas: solo visibles en la rama activa */
.nav-seccion .children {
  display: none;
}
.nav-seccion .current_page_ancestor > .children,
.nav-seccion .current_page_item > .children {
  display: block;
}
.nav-seccion .children {
  padding-left: 18px;
}
.nav-seccion .children li {
  border: 0;
}
.nav-seccion .children li a {
  padding: 8px 0;
  color: #2563eb;
  font-weight: 400;
}