.page-toc {
  position: sticky;
  top: 100px;
  width: 220px;
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(26, 29, 38, 0.06);
}
.toc-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink2);
  margin-bottom: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-family: "IBM Plex Sans KR", sans-serif;
}
.toc-link {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
  padding: 8px 10px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink2);
  border-radius: 4px;
  text-decoration: none;
  transition:
    background 0.2s,
    color 0.2s;
}
.toc-link::before {
  content: "";
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--muted);
  flex-shrink: 0;
  transition: background 0.2s;
}
.toc-link:hover,
.toc-link.active {
  background: rgba(200, 0, 30, 0.1);
  color: var(--crimson2);
}
.toc-link.active::before,
.toc-link:hover::before {
  background: var(--crimson);
}
.toc-divider {
  height: 1px;
  background: var(--rule);
  margin: 12px 0;
}
.toc-cta {
  display: block;
  text-align: center;
  padding: 9px 14px;
  background: var(--ink);
  color: var(--white);
  text-decoration: none;
  font-size: 15px;
  font-weight: 700;
  border-radius: 3px;
  letter-spacing: 0.5px;
  margin-top: 4px;
  transition: background 0.2s;
}
.toc-cta:hover {
  background: var(--crimson);
}

@media (max-width: 1100px) {
  .page-toc {
    display: none;
  }
}