@media screen {
  .paper-section .is-stuck::before {
    content: "";
    position: absolute;
    top: 100%;
    right: var(--paper-section-inset);
    left: var(--paper-section-inset);
    height: 6px;
    background: linear-gradient(to bottom, rgb(7 27 15 / 0.156), rgb(7 27 15 / 0));
    pointer-events: none;
  }

  .paper-abstract-title.is-stuck::before {
    right: 0;
    left: 0;
  }

  .paper-section:has(> .paper-section-body > h3) > h2.is-stuck::before {
    content: none;
  }
}