@media (max-width: 1080px) {
  .site-frame {
    grid-template-columns: 1fr;
  }

  .profile-panel {
    position: static;
    min-height: auto;
    padding: 34px 24px 28px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .profile-content {
    max-width: 760px;
    margin-inline: auto;
  }

  .profile-links {
    grid-template-columns: repeat(5, minmax(120px, 1fr));
  }

  .profile-link {
    grid-template-columns: 1fr;
    justify-items: center;
    gap: 8px;
    text-align: center;
  }

  .profile-footer {
    margin-top: 28px;
  }

  .main-content {
    width: 100%;
  }

  .timeline-item {
    grid-template-columns: 120px minmax(170px, 240px) minmax(0, 1fr);
  }
}

@media (max-width: 820px) {
  body {
    font-size: 15px;
  }

  .corner-mascot {
    width: clamp(76px, 17vw, 118px);
  }

  .site-frame {
    border-block-width: 10px;
  }

  .profile-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .bio-content {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .bio-copy {
    max-width: none;
  }

  .feature-row {
    grid-template-columns: 112px minmax(0, 1fr);
    gap: 16px;
    padding: 12px;
  }

  .paper-thumb,
  .project-thumb {
    min-height: 104px;
  }

  .timeline {
    padding-left: 30px;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 5px;
    padding-bottom: 24px;
  }

  .timeline-item::before {
    left: -23px;
  }

  .timeline-item::after {
    left: -18px;
  }
}

@media (max-width: 560px) {
  .main-content {
    padding-inline: 18px;
  }

  .corner-mascot {
    bottom: 10px;
    right: 10px;
    width: 70px;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .profile-links {
    grid-template-columns: 1fr;
  }

  .feature-row {
    grid-template-columns: 1fr;
  }

  .education-item {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .bio-section .education-year {
    grid-row: auto;
  }

  .paper-thumb,
  .project-thumb {
    max-height: 180px;
  }
}