.toc-box {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(248, 246, 248, 0.95));
  border: 1px solid var(--cd-border);
  border-left: 4px solid var(--cd-accent);
  border-radius: var(--cd-radius-m);
  box-shadow: 0 10px 30px rgba(37, 26, 41, 0.05);
  margin-top: 0 !important;
  margin-bottom: 1.25rem !important;
  max-width: 800px !important;
  width: 100% !important;
  overflow: hidden;
  padding: 1.1rem 1.3rem;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.toc-box:hover {
  border-color: #d4c5d2;
  border-left-color: var(--cd-accent-hover);
  box-shadow: 0 14px 35px rgba(37, 26, 41, 0.08);
}

.toc-box__header {
  align-items: center;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.toc-box__title-group {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.toc-box__icon {
  align-items: center;
  background: rgba(179, 19, 79, 0.08);
  border-radius: 8px;
  color: var(--cd-accent);
  display: inline-flex;
  height: 32px;
  justify-content: center;
  width: 32px;
}

.toc-box__title {
  color: var(--cd-ink);
  font-family: Poppins, ui-sans-serif, system-ui, sans-serif;
  font-size: 1.05rem;
  font-weight: 750;
  letter-spacing: -0.02em;
}

.toc-box__badge {
  background: rgba(37, 26, 41, 0.06);
  border-radius: 999px;
  color: var(--cd-muted);
  font-size: 0.75rem;
  font-weight: 650;
  padding: 0.2rem 0.65rem;
}

.toc-box__toggle {
  align-items: center;
  background: transparent;
  border: 1px solid var(--cd-border);
  border-radius: 8px;
  color: var(--cd-muted);
  cursor: pointer;
  display: inline-flex;
  font-size: 0.78rem;
  font-weight: 700;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.toc-box__toggle:hover {
  background: #f0e6eb;
  border-color: var(--cd-accent);
  color: var(--cd-accent-hover);
}

.toc-box__chevron {
  border-bottom: 2px solid currentColor;
  border-right: 2px solid currentColor;
  display: inline-block;
  height: 0.45rem;
  transform: rotate(225deg) translate(-1px, -1px);
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  width: 0.45rem;
}

.toc-box.is-collapsed .toc-box__chevron {
  transform: rotate(45deg) translate(0, 0);
}

.toc-box__content {
  display: grid;
  grid-template-rows: 1fr;
  margin-top: 1rem;
  transition: grid-template-rows 0.3s ease, margin-top 0.3s ease, opacity 0.25s ease;
}

.toc-box.is-collapsed .toc-box__content {
  grid-template-rows: 0fr;
  margin-top: 0;
  opacity: 0;
  pointer-events: none;
}

.toc-box__list {
  display: grid;
  gap: 0.35rem;
  list-style: none;
  margin: 0;
  min-height: 0;
  overflow: hidden;
  padding: 0;
}

.toc-box__item {
  margin: 0;
}

.toc-box__link {
  align-items: center;
  border-radius: 8px;
  color: var(--cd-ink);
  display: flex;
  font-size: 0.92rem;
  font-weight: 600;
  gap: 0.75rem;
  padding: 0.45rem 0.7rem;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.toc-box__num {
  align-items: center;
  background: rgba(37, 26, 41, 0.05);
  border-radius: 50%;
  color: var(--cd-muted);
  display: inline-flex;
  flex: 0 0 auto;
  font-size: 0.75rem;
  font-weight: 800;
  height: 22px;
  justify-content: center;
  width: 22px;

  transition: background 0.2s ease, color 0.2s ease;
}

.toc-box__text {
  flex: 1 1 auto;
  line-height: 1.35;
}

.toc-box__link:hover {
  background: rgba(179, 19, 79, 0.06);
  color: var(--cd-accent-hover);
  transform: translateX(4px);
}

.toc-box__link:hover .toc-box__num {
  background: var(--cd-accent);
  color: #fff;
}

.toc-box__link.is-active {
  background: linear-gradient(90deg, rgba(179, 19, 79, 0.12), rgba(179, 19, 79, 0.04));
  color: var(--cd-accent-hover);
  font-weight: 750;
}

.toc-box__link.is-active .toc-box__num {
  background: var(--cd-accent);
  color: #fff;
}

@media (max-width: 600px) {
  .toc-box {
    padding: 1rem 1.1rem;
  }

  .toc-box__title {
    font-size: 0.98rem;
  }

  .toc-box__link {
    font-size: 0.88rem;
    padding: 0.4rem 0.5rem;
  }
}