.cat-title {
  margin: 0;
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.cat-description {
  margin-top: 1.5rem;
}

.term-content ul {
  margin: 0;
}

.term-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.term-grid-important {
  margin-bottom: 24px;
}

@media (max-width: 560px) {
  .term-grid {
    grid-template-columns: 1fr;
  }
}

.term-grid > li {
  display: flex;
}

.term-card {
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 5px;
  padding: 14px 16px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.term-card-important {
  border-color: rgba(63, 109, 246, 0.25);
  background: rgba(63, 109, 246, 0.02);
}

.term-card:hover {
  box-shadow: 0 4px 14px rgba(31, 42, 68, 0.08);
  border-color: rgba(63, 109, 246, 0.2);
  background: var(--surface);
}

.term-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.term-card-link:hover .term-card-name {
  color: var(--brand);
}

.term-card-name {
  font-size: 0.98rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.4;
  transition: color 0.15s ease;
}

.term-card-en {
  font-size: 0.78rem;
  color: var(--text-soft);
  font-weight: 600;
  font-family: "Plus Jakarta Sans", sans-serif;
  margin-left: 4px;
}

.term-card-level {
  display: inline-flex;
  align-self: flex-start;
  align-items: center;
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--pink-text);
  background: var(--pink-soft);
  border: 1px solid rgba(224, 77, 135, 0.18);
}

.term-card-details {
  margin-top: 4px;
}

.term-card-summary {
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--brand);
  padding: 0;
  user-select: none;
}

.term-card-summary::-webkit-details-marker {
  display: none;
}

.term-card-summary::after {
  content: "\25BE";
  font-size: 0.85rem;
  display: inline-block;
  transition: transform 0.2s ease;
}

.term-card-details[open] .term-card-summary::after {
  transform: rotate(180deg);
}

.term-card-desc {
  font-size: 0.82rem;
  color: var(--text-sub);
  line-height: 1.6;
  font-weight: 500;
  margin: 6px 0 0;
}

.cat-lead {
  display: grid;
  gap: 14px;
  margin: 24px 0 0;
  padding: 22px 24px;
  background: linear-gradient(180deg, var(--surface-soft), var(--surface));
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

.cat-lead p {
  margin: 0;
  color: var(--text-sub);
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.85;
}

.cat-guide {
  margin: 28px 0 0;
  padding: 20px 22px;
  background: rgba(63, 109, 246, 0.04);
  border: 1px solid rgba(63, 109, 246, 0.14);
  border-radius: var(--radius-md);
}

.cat-guide-title {
  margin: 0 0 12px;
  color: var(--brand-strong);
  font-size: 1.02rem;
  font-weight: 800;
  line-height: 1.4;
}

.cat-guide-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.cat-guide-list li {
  position: relative;
  margin: 0;
  padding-left: 18px;
  color: var(--text-sub);
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.7;
}

.cat-guide-list li::before {
  content: "";
  position: absolute;
  top: 0.78em;
  left: 0;
  width: 7px;
  height: 7px;
  background: var(--brand);
  border-radius: 50%;
  transform: translateY(-50%);
}

.cat-section-note {
  margin: -6px 0 18px;
  color: var(--text-sub);
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.75;
}

.cat-quiz-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 20px;
  background: var(--surface-soft);
  border: 1px dashed var(--brand);
  border-radius: var(--radius-sm);
  margin-top: 24px;
  text-align: center;
}

.cat-quiz-cta-text {
  font-size: 0.88rem;
  color: var(--text-sub);
  font-weight: 700;
  margin: 0;
}

.cat-quiz-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  background: var(--brand);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 800;
  text-decoration: none;
  border-radius: 999px;
  transition: background 0.15s ease, transform 0.15s ease;
  box-shadow: 0 4px 12px rgba(63, 109, 246, 0.2);
}

.cat-quiz-cta-btn:hover {
  background: var(--brand-hover, #2563eb);
  transform: translateY(-1px);
}

.cat-section-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-main);
  margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--line);
  letter-spacing: -0.01em;
}

.cat-app-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
}

@media (max-width: 560px) {
  .cat-app-grid {
    grid-template-columns: 1fr;
  }
}

.cat-app-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px;
  background: rgba(63, 109, 246, 0.03);
  border: 1px solid rgba(63, 109, 246, 0.12);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: inherit;
  transition: all 0.2s ease;
}

.cat-app-card:hover {
  background: rgba(63, 109, 246, 0.06);
  border-color: var(--brand);
  box-shadow: 0 4px 12px rgba(63, 109, 246, 0.08);
}

.cat-app-title {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--brand);
}

.cat-app-desc {
  font-size: 0.78rem;
  color: var(--text-sub);
  line-height: 1.4;
}

.important-badge {
  display: inline-flex;
  align-items: center;
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 0.65rem;
  font-weight: 800;
  color: #fff;
  background: var(--brand);
  margin-left: 6px;
  vertical-align: middle;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}