.experiment-home .site-nav {
  background: rgba(243, 240, 232, .98);
}

.experiment-home .experiment-hero {
  min-height: auto;
  padding-block: clamp(72px, 9vw, 132px) clamp(62px, 8vw, 108px);
  display: block;
}

.experiment-home .experiment-hero .identity {
  max-width: 780px;
}

.experiment-home .experiment-hero .identity-copy {
  max-width: 660px;
}

.experiment-method {
  margin-top: 0;
}

.route-overview {
  padding-block: clamp(64px, 8vw, 112px);
  background: rgba(255, 253, 248, .22);
}

.route-layout {
  display: block;
}

.route-list {
  width: min(100%, 940px);
  margin: 0 auto;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.route-list li {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  align-items: baseline;
  min-height: 74px;
  border-bottom: 1px solid var(--line);
  position: relative;
}

.route-list li.is-open::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 16px;
  bottom: 16px;
  width: 3px;
  background: var(--burgundy);
}

.route-index {
  color: rgba(32, 32, 31, .72);
  font: 500 clamp(1.2rem, 1.8vw, 1.85rem)/1 var(--font-display-en);
  letter-spacing: .02em;
}

.route-main {
  display: grid;
  grid-template-columns: minmax(220px, .62fr) minmax(0, 1fr);
  gap: 22px;
  align-items: baseline;
  padding: 19px 0 17px;
  color: inherit;
  text-decoration: none;
}

.route-main:hover .route-title,
.route-list li.is-open .route-title {
  color: var(--burgundy);
}

.route-title {
  color: var(--ink);
  font: 500 clamp(1.35rem, 2vw, 2.2rem)/1.18 var(--font-display-zh);
  letter-spacing: -.035em;
  word-break: keep-all;
}

.route-detail {
  color: var(--burgundy);
  font-family: var(--font-display-en);
  font-size: clamp(.98rem, 1.18vw, 1.16rem);
  line-height: 1.5;
}

.route-main.is-muted {
  cursor: default;
}

.route-main.is-muted:hover .route-title {
  color: var(--ink);
}

.experiment-home .site-footer {
  border-top: 0;
}

@media (max-width: 980px) {
  .route-list {
    width: 100%;
  }

  .route-main {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

@media (max-width: 660px) {
  .experiment-home .experiment-hero {
    padding-block: 56px 70px;
  }

  .route-overview {
    padding-block: 54px 70px;
  }

  .route-list li {
    grid-template-columns: 50px minmax(0, 1fr);
    min-height: 68px;
  }

  .route-list li.is-open::before {
    left: -4px;
    top: 14px;
    bottom: 14px;
  }

  .route-title {
    font-size: clamp(1.28rem, 5.6vw, 1.72rem);
  }

  .route-detail {
    font-size: .96rem;
  }
}