/* Everyday Challenge cards occlude the circle; section labels remain on its route. */
.b2b-friction>.b2b-friction-grid{z-index:5}
/* Cross the service faces only during the quick fall, after the two floor rebounds. */
.thread-bubble[data-phase="falling"],.thread-bubble[data-phase="fallen"]{z-index:6}
/* Keep the complete left-hand story alongside the scrolling journey cards. */
@media(min-width:601px){
  .thread-ready .flow-heading{position:sticky;top:clamp(112px,16vh,145px);align-self:start}
}