.lab-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 4%;
  border-bottom: 1px solid #dce2df;
  background: #ffffffb3;
  overflow-x: auto;
}
.lab-nav a {
  flex-shrink: 0;
  color: #68756f;
  text-decoration: none;
  font: 500 12px/1.5 -apple-system, BlinkMacSystemFont, "PingFang SC", sans-serif;
  padding: 8px 12px;
  border-radius: 7px;
}
.lab-nav a:first-child { margin-right: auto; }
.lab-nav a:hover { background: #edf1ed; color: #294238; }
.lab-nav a[aria-current="page"] { color: #294238; background: #e6eee7; }
.lab-nav a:focus-visible { outline: 2px solid #477e60; outline-offset: 2px; }
@media (max-width: 480px) {
  .lab-nav { gap: 2px; padding: 9px 12px; }
  .lab-nav a { font-size: 11px; padding: 8px; }
}