.ai-overview {
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.ai-overview__body h2 {
  margin-bottom: 1rem;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
}

.ai-overview__body p {
  margin-bottom: 0;
  color: var(--color-text-muted);
}

.ai-overview__media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-background-subtle);
}

.ai-overview__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.challenge-grid,
.ai-strength-grid {
  display: grid;
  gap: 0.0625rem;
  padding: 0.0625rem;
  background: var(--color-border);
}

.challenge-card,
.ai-strength-card {
  padding: 1.5rem;
  background: var(--color-background);
}

.challenge-card {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: 1.25rem;
  min-height: 11rem;
  align-items: center;
}

.challenge-card__icon {
  display: grid;
  width: 4.5rem;
  height: 4.5rem;
  place-items: center;
  color: var(--color-primary);
  border: 0.0625rem solid #f1c4c1;
  background: #fff4f3;
}

.challenge-card__icon svg {
  width: 3rem;
  height: 3rem;
}

.challenge-card__number {
  margin-bottom: 0.35rem;
  color: var(--color-primary-dark);
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.08em;
}

.challenge-card__text {
  margin-bottom: 0;
  font-weight: 700;
}

.ai-service-grid {
  display: grid;
  gap: 1.5rem;
}

.ai-service-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  border: 0.0625rem solid var(--color-border);
  background: var(--color-background);
}

.ai-service-card__media {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-bottom: 0.0625rem solid var(--color-border);
}

.ai-service-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ai-service-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 1.5rem;
}

.ai-service-card__purpose {
  margin-bottom: 1rem;
  padding: 0.75rem 0.875rem;
  border-left: 0.1875rem solid var(--color-primary);
  background: #fff4f3;
  font-weight: 700;
}

.ai-service-card__target {
  margin-bottom: 0.625rem;
  color: var(--color-primary-dark);
  font-size: 1rem;
  font-weight: 700;
}

.ai-service-card h3 {
  margin-bottom: 0.875rem;
}

.ai-service-card__description {
  color: var(--color-text-muted);
}

.ai-feature-list {
  display: grid;
  gap: 0.5rem;
  margin: 0 0 1.5rem;
  padding-top: 1rem;
  border-top: 0.0625rem solid var(--color-border);
}

.ai-feature-list li {
  position: relative;
  padding-left: 1rem;
  font-size: 1rem;
}

.ai-feature-list li::before {
  position: absolute;
  top: 0.7em;
  left: 0;
  width: 0.375rem;
  height: 0.375rem;
  background: var(--color-primary);
  content: "";
}

.ai-service-card .text-link {
  margin-top: auto;
}

.ai-strength-card__number {
  margin-bottom: 0.75rem;
  color: var(--color-primary-dark);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.ai-strength-card h3 {
  margin-bottom: 0.75rem;
}

.ai-strength-card p:last-child {
  margin-bottom: 0;
  color: var(--color-text-muted);
}

.ai-flow {
  display: grid;
  gap: 1rem;
  counter-reset: ai-flow;
}

.ai-flow li {
  position: relative;
  padding: 1.5rem;
  border-top: 0.1875rem solid var(--color-primary);
  background: var(--color-background);
  counter-increment: ai-flow;
}

.ai-flow li::before {
  display: block;
  margin-bottom: 0.75rem;
  color: var(--color-primary-dark);
  content: "STEP " counter(ai-flow, decimal-leading-zero);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.ai-flow h3 {
  margin-bottom: 0.5rem;
  font-size: 1.125rem;
}

.ai-flow p {
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: 1rem;
}

.faq-list {
  border-top: 0.0625rem solid var(--color-text);
}

.faq-list details {
  border-bottom: 0.0625rem solid var(--color-border);
}

.faq-list summary {
  position: relative;
  min-height: 4.5rem;
  padding: 1.25rem 3rem 1.25rem 2.5rem;
  font-weight: 700;
  list-style: none;
  cursor: pointer;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::before {
  position: absolute;
  left: 0;
  color: var(--color-primary-dark);
  content: "Q";
  font-weight: 700;
}

.faq-list summary::after {
  position: absolute;
  top: 50%;
  right: 0.75rem;
  content: "＋";
  transform: translateY(-50%);
}

.faq-list details[open] summary::after {
  content: "－";
}

.faq-list__answer {
  position: relative;
  padding: 0 1rem 1.5rem 2.5rem;
  color: var(--color-text-muted);
}

.faq-list__answer::before {
  position: absolute;
  left: 0;
  color: var(--color-primary);
  content: "A";
  font-weight: 700;
}

.faq-list__answer p {
  margin-bottom: 0;
}

.ai-cta {
  padding-block: clamp(3.5rem, 7vw, 5rem);
  color: #fff;
  background: var(--color-primary);
}

.ai-cta__inner {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.ai-cta h2 {
  margin-bottom: 1rem;
}

.ai-cta p {
  max-width: 42rem;
  margin-bottom: 0;
}

@media (min-width: 42rem) {
  .challenge-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ai-strength-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 48rem) {
  .ai-overview {
    grid-template-columns: minmax(0, 1fr) minmax(20rem, 0.9fr);
  }

  .ai-overview__media {
    aspect-ratio: 2 / 1;
  }

  .ai-service-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.0625rem;
    padding: 0.0625rem;
    background: var(--color-border);
  }

  .ai-service-card {
    border: 0;
  }

  .ai-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (min-width: 64rem) {
  .ai-flow {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (max-width: 36rem) {
  .challenge-card {
    grid-template-columns: 4rem minmax(0, 1fr);
    min-height: auto;
  }

  .challenge-card__icon {
    width: 4rem;
    height: 4rem;
  }

  .challenge-card__icon svg {
    width: 2.75rem;
    height: 2.75rem;
  }
}