.ai-page {
  background: #ffffff;
}

.ai-section,
.ai-faq {
  padding: 120px 0;
}

.ai-head,
.ai-title {
  max-width: 1440px;
  margin: 0 auto 72px;
  text-align: center;
}

.ai-head--narrow {
  max-width: 1440px;
}

.ai-head h2,
.ai-title h2 {
  margin: 0;
  font-size: 40px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.04em;
  color: #171717;
}

.ai-head h2 span,
.ai-title h2 span {
  color: var(--color-blue-point);
}

.ai-title p {
  margin: 20px 0 0;
  font-size: 18px;
  line-height: 1.9;
  color: #666666;
}

.ai-section-description {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.45;
  color: #131313;
}

.hero--ai {
  background: linear-gradient(180deg, #f7faff 0%, #ffffff 100%);
}

.hero--ai .hero-bg {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.94) 24%, rgba(255, 255, 255, 0.52) 54%, rgba(255, 255, 255, 0.08) 100%),
    url("/images/redesign/AI/hero_ai_main.png") no-repeat right center / cover;
}

.ai-intro .ai-head {
  margin-bottom: 80px;
}

.ai-intro .ai-head .ai-section-description {
  margin: 28px 0 0;
  font-size: 24px;
  font-weight: 600;
  line-height: 1.4;
  color: #171717;
}

.ai-intro__grid {
  max-width: 1440px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.ai-intro-card {
  min-height: 346px;
  padding: 44px 40px 48px;
  text-align: center;
  border: 1px solid #e7edf6;
  background: #ffffff;
  transition:
    transform 0.24s ease,
    box-shadow 0.24s ease,
    border-color 0.24s ease;
}

.ai-intro-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 36px rgba(15, 43, 94, 0.08);
}

.ai-intro-card img {
  display: block;
  width: 180px;
  height: 180px;
  margin: 0 auto 30px;
  object-fit: contain;
}

.ai-intro-card h3 {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.03em;
  color: #034ce2;
}

.ai-intro-card p {
  margin: 18px 0 0;
  font-size: 17px;
  line-height: 1.8;
  color: #666666;
}

.ai-pillars .ai-head {
  margin-bottom: 56px;
}

.ai-pillars__lead {
  margin-top: 24px;
  font-size: 20px;
  font-weight: 500;
  line-height: 1.8;
  color: #555555;
}

.ai-pillars__grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 72px;
}

.ai-pillar {
  text-align: center;
}

.ai-pillar img {
  display: block;
  width: min(100%, 320px);
  height: auto;
  margin: 0 auto;
  object-fit: contain;
}

.ai-pillars__desc {
  max-width: 980px;
  margin: 60px auto 0;
  text-align: center;
}

.ai-pillars__desc p {
  margin: 0;
  font-size: 18px;
  line-height: 1.9;
  color: #171717;
}

.ai-pillars__desc p:first-child {
  font-weight: 600;
}

.ai-pillars__desc p + p {
  margin-top: 28px;
}

.ai-business .ai-title h2 {
  color: #171717;
}

.ai-business .ai-title h2 span {
  color: var(--color-blue-point);
}

.ai-business__lead {
  margin-top: 18px;
  font-size: 32px;
  font-weight: 700;
  line-height: 1.45;
  color: #171717;
}

.ai-business__stage-label,
.ai-business__service-label {
  margin-bottom: 34px;
  text-align: center;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #131313;
  text-transform: uppercase;
}

.ai-stage-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.ai-stage img {
  width: 100%;
  aspect-ratio: 44 / 24.8;
  border: 1px solid #dfe7f3;
  object-fit: cover;
}

.ai-business__summary {
  margin: 40px 0 0;
  text-align: center;
  font-size: 18px;
  line-height: 1.9;
  color: #555555;
}

.ai-business__service-label {
  margin-top: 48px;
}

.ai-service-grid {
  max-width: 1440px;
  margin: 80px auto 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px;
}

.ai-service {
  min-height: 300px;
  padding: 48px;
  border: 1px solid #e3eaf5;
  background: #ffffff;
  transition:
    transform 0.24s ease,
    box-shadow 0.24s ease;
}

.ai-service:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 36px rgba(15, 43, 94, 0.08);
}

.ai-service__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 150px;
  height: 38px;
  padding: 0 20px;
  background: #014ed9;
  color: #ffffff;
  font-size: 15px;
  font-weight: 700;
  border-radius: 0;
}

.ai-service--green .ai-service__badge {
  background: #16a334;
}

.ai-service h3 {
  margin: 28px 0 0;
  font-size: 32px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.04em;
  color: #171717;
}

.ai-service h3::after {
  content: "";
  display: block;
  width: 140px;
  height: 1px;
  margin-top: 18px;
  background: #d8e3f4;
}

.ai-service ul,
.ai-usecase__card ul,
.ai-foundation-item__detail-box ul {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.ai-service li,
.ai-foundation-item__detail-box li {
  position: relative;
  padding-left: 16px;
  font-size: 15px;
  line-height: 1.85;
  color: #555555;
}

.ai-service li + li,
.ai-foundation-item__detail-box li + li {
  margin-top: 8px;
}

.ai-service li::before,
.ai-foundation-item__detail-box li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #555555;
}

.ai-usecase {
  max-width: 1440px;
  margin: 100px auto 0;
  padding-top: 0;
}

.ai-usecase h3 {
  margin: 0 0 44px;
  text-align: center;
  font-size: 32px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.04em;
  color: #171717;
}

.ai-usecase__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid #dfe7f3;
  border-bottom: 1px solid #dfe7f3;
}

.ai-usecase__card {
  min-height: 360px;
  padding: 48px 36px;
  border-right: 1px solid #dfe7f3;
}

.ai-usecase__card:last-child {
  border-right: 0;
}

.ai-usecase__card::before {
  display: block;
  margin-bottom: 8px;
  font-size: 16px;
  font-weight: 700;
  color: #014ed9;
}

.ai-usecase__card:nth-child(1)::before { content: "Risk"; }
.ai-usecase__card:nth-child(2)::before { content: "Efficiency"; }
.ai-usecase__card:nth-child(3)::before { content: "Experience"; }
.ai-usecase__card:nth-child(4)::before { content: "Product"; }

.ai-usecase__card strong {
  display: block;
  font-size: 26px;
  font-weight: 700;
  line-height: 1.35;
  color: #171717;
}

.ai-usecase__card strong::after {
  content: "";
  display: block;
  width: 44px;
  height: 3px;
  margin-top: 18px;
  background: #014ed9;
}

.ai-usecase__card ul {
  margin: 34px 0 0;
}

.ai-usecase__card li {
  position: relative;
  padding-left: 32px;
  font-size: 18px;
  line-height: 1.9;
  color: #555555;
}

.ai-usecase__card li::marker {
  content: "";
}

.ai-usecase__card li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  top: 0;
  color: #014ed9;
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  background: none;
}

.ai-usecase__card li + li {
  margin-top: 10px;
}

.ai-usecase__action {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  margin-top: 56px;
}

.ai-usecase__action .button {
  margin: 0 auto;
}

.ai-foundation__stack {
  display: grid;
  gap: 22px;
}

.ai-foundation-item {
  border: 1px solid #e4e8ef;
  background: #ffffff;
}

.ai-foundation-item__toggle {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  width: 100%;
  padding: 34px 40px 30px;
  border: 0;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.ai-foundation-item__intro {
  flex: 1 1 auto;
  min-width: 0;
}

.ai-foundation-item__topline {
  display: flex;
  align-items: center;
  gap: 32px;
}

.ai-foundation-item__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 104px;
  height: 36px;
  padding: 0 18px;
  border-radius: 2px;
  color: #ffffff;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.ai-foundation-item__badge--blue {
  background: #0a58d1;
}

.ai-foundation-item__badge--mint {
  background: #24a99a;
}

.ai-foundation-item__badge--purple {
  background: #7b61f4;
}

.ai-foundation-item__heading {
  display: block;
  font-size: 26px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.03em;
  color: #171717;
}

.ai-foundation-item__summary {
  display: block;
  margin-top: 22px;
  font-size: 17px;
  line-height: 1.85;
  letter-spacing: -0.02em;
  color: #5f5f5f;
}

.ai-foundation-item.is-open .ai-foundation-item__summary {
  display: none;
}

.ai-foundation-item__icon {
  position: relative;
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  margin-left: 24px;
  margin-top: 2px;
}

.ai-foundation-item__icon::before,
.ai-foundation-item__icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: #171717;
  transform: translate(-50%, -50%);
  transition: opacity 0.24s ease;
}

.ai-foundation-item__icon::before {
  width: 24px;
  height: 2px;
}

.ai-foundation-item__icon::after {
  width: 2px;
  height: 24px;
}

.ai-foundation-item.is-open .ai-foundation-item__icon::after {
  opacity: 0;
}

.ai-foundation-item__panel {
  height: 0;
  overflow: hidden;
  transition: height 0.36s ease;
}

.ai-foundation-item__panel-inner {
  padding: 0 40px 40px;
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.34s ease,
    transform 0.34s ease;
}

.ai-foundation-item.is-open .ai-foundation-item__panel-inner {
  opacity: 1;
  transform: translateY(0);
}

.ai-foundation-item__layout {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(620px, 1.28fr);
  gap: 40px;
  align-items: stretch;
}

.ai-foundation-item__main {
  display: flex;
  flex-direction: column;
}

.ai-foundation-item__desc {
  margin: 0;
  font-size: 17px;
  line-height: 1.9;
  letter-spacing: -0.02em;
  color: #4f4f4f;
}

.ai-foundation-item__visual-box {
  margin-top: 20px;
  border: 1px solid #e4e8ef;
  background: #ffffff;
}

.ai-foundation-item__visual-box--logo {
  padding: 14px 20px;
}

.ai-foundation-item__logos {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  align-items: center;
  gap: 14px;
  min-height: 68px;
}

.ai-foundation-item__logos img {
  width: auto;
  height: 28px;
  max-width: 100%;
  margin: 0 auto;
  object-fit: contain;
}

.ai-foundation-item__chips {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 18px;
  padding: 24px;
}

.ai-foundation-item__chips span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid #dce2ec;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.3;
  color: #3b3b3b;
  text-align: center;
  background: #ffffff;
}

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

.ai-foundation-item__chips--wide span {
  min-height: 92px;
  border-radius: 999px;
  font-size: 18px;
  font-weight: 500;
}

.ai-foundation-item__detail {
  display: grid;
  gap: 0;
}

.ai-foundation-item__detail-box {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  align-items: start;
  border: 1px solid #dfe7f5;
  background: #f5f8ff;
}

.ai-foundation-item__detail-box + .ai-foundation-item__detail-box {
  border-top: 0;
}

.ai-foundation-item__detail-box strong {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 22px 12px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
}

.ai-foundation-item__detail-box ul {
  margin: 0;
  padding: 22px 28px 22px 0;
}

.ai-foundation-item__detail-box li {
  font-size: 17px;
  line-height: 1.9;
}

.ai-foundation-item__detail-box li::before {
  background: #333333;
}

.ai-foundation-item__detail-box--blue {
  border-color: #d6e3ff;
  background: #f5f8ff;
}

.ai-foundation-item__detail-box--blue strong {
  color: #245fda;
}

.ai-foundation-item__detail-box--mint {
  border-color: #ccece7;
  background: #effaf8;
}

.ai-foundation-item__detail-box--mint strong {
  color: #24a99a;
}

.ai-foundation-item__detail-box--purple {
  border-color: #e3d9ff;
  background: #f7f2ff;
}

.ai-foundation-item__detail-box--purple strong {
  color: #7b61f4;
}

.ai-experience__head {
  text-align: center;
}

.ai-experience__head h2 {
  margin: 0;
  font-size: 62px;
  line-height: 1.15;
  letter-spacing: -0.04em;
  font-weight: 700;
  color: #171717;
}

.ai-experience__head h2 span {
  color: #0a58d1;
}

.ai-experience__head h2 em {
  font-style: normal;
  color: #171717;
}

.ai-experience__lead {
  margin: 18px 0 0;
  font-size: 36px;
  line-height: 1.52;
  letter-spacing: -0.04em;
  font-weight: 700;
  color: #171717;
}

.ai-experience__copy {
  margin: 36px 0 0;
  font-size: 18px;
  line-height: 1.95;
  letter-spacing: -0.02em;
  font-weight: 500;
  color: #5b5b5b;
}

.ai-experience__diagram-scroll {
  margin-top: 66px;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.ai-experience__diagram-track {
  position: relative;
  min-width: 1436px;
}

.ai-experience__diagram-image {
  display: block;
  width: 100%;
  height: auto;
}

.ai-experience__connector-guides {
  position: relative;
  height: 42px;
  margin-top: -1px;
}

.ai-experience__connector-guides span {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 0;
  border-left: 1px dashed #c9d9f8;
}

.ai-experience__connector-guides span:nth-child(1) { left: 8.333%; }
.ai-experience__connector-guides span:nth-child(2) { left: 25%; }
.ai-experience__connector-guides span:nth-child(3) { left: 41.666%; }
.ai-experience__connector-guides span:nth-child(4) { left: 58.333%; }
.ai-experience__connector-guides span:nth-child(5) { left: 75%; }
.ai-experience__connector-guides span:nth-child(6) { left: 91.666%; }

.ai-experience__connector-box {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 82px;
  border: 1px solid #245fda;
  font-size: 21px;
  font-weight: 700;
  line-height: 1.4;
  color: #245fda;
  text-align: center;
  letter-spacing: -0.02em;
  background: #ffffff;
}

.ai-experience__insights {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
  margin-top: 38px;
}

.ai-experience__insight-box {
  min-height: 272px;
  padding: 30px 36px 32px;
  border: 1px solid #d9e5fb;
  background: #f6f9ff;
}

.ai-experience__insight-box strong {
  display: block;
  margin-bottom: 20px;
  font-size: 28px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.03em;
  color: #4e72c5;
}

.ai-experience__insight-box ul {
  margin: 0;
  padding: 0 0 0 22px;
  list-style: disc;
}

.ai-experience__insight-box li {
  display: list-item;
  font-size: 17px;
  line-height: 1.9;
  letter-spacing: -0.02em;
  color: #4f4f4f;
}

.ai-experience__insight-box li::marker {
  color: #4f4f4f;
}

.ai-experience__insight-box li + li {
  margin-top: 10px;
}

.ai-strength__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.ai-strength .ai-head {
  max-width: 1120px;
}

.ai-strength .ai-head h2 {
  line-height: 1.32;
}

.ai-strength-card {
  min-height: 340px;
  padding: 52px 38px 44px;
  border: 1px solid #e5e9f2;
  background: #ffffff;
}

.ai-strength-card h3 {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  line-height: 1.35;
  color: #0a58d1;
}

.ai-strength-card h3::after {
  content: "";
  display: block;
  width: 30px;
  height: 2px;
  margin-top: 16px;
  background: #1b57db;
}

.ai-strength-card p {
  margin: 24px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: #5f5f5f;
}

/* =========================================================
   AI Effect
========================================================= */

.ai-effect .section-head {
  margin-bottom: 72px;
  text-align: center;
}

.ai-effect__content {
  display: grid;
  grid-template-columns: minmax(0, 640px) minmax(0, 1fr);
  gap: 56px;
  align-items: center;
  max-width: 1440px;
  margin: 0 auto;
}

.ai-effect__visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.ai-effect__visual img {
  display: block;
  width: 100%;
  max-width: 640px;
  height: auto;
  object-fit: contain;
}

.ai-effect__list {
  width: 100%;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: ai-effect;
}

.ai-effect__list li {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  column-gap: 22px;
  row-gap: 8px;
  align-items: start;
  padding: 24px 0;
  border-bottom: 1px solid #e1e5ec;
}

.ai-effect__list li:first-child {
  padding-top: 0;
}

.ai-effect__list li::before {
  counter-increment: ai-effect;
  content: counter(ai-effect, decimal-leading-zero);
  grid-column: 1;
  grid-row: 1 / span 2;
  display: block;
  font-size: 32px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
  color: #9f9f9f;
}

.ai-effect__list strong {
  grid-column: 2;
  display: block;
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.03em;
  color: #171717;
}

.ai-effect__list p {
  grid-column: 2;
  margin: 0;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.65;
  letter-spacing: -0.025em;
  color: #555;
}

.ai-effect__list p br {
  display: block;
}

/* =========================================================
   Tablet
========================================================= */

@media (max-width: 1024px) {
  .ai-effect .section-head {
    margin-bottom: 48px;
  }

  .ai-effect__content {
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: start;
  }

  .ai-effect__visual img {
    max-width: 560px;
  }

  .ai-effect__list li {
    grid-template-columns: 48px minmax(0, 1fr);
    column-gap: 18px;
    padding: 22px 0;
  }

  .ai-effect__list li::before {
    font-size: 30px;
  }

  .ai-effect__list strong {
    font-size: 20px;
    line-height: 1.4;
  }

  .ai-effect__list p {
    font-size: 14px;
    line-height: 1.65;
  }
}

/* =========================================================
   Mobile
========================================================= */

@media (max-width: 640px) {
  .ai-effect .section-head {
    margin-bottom: 36px;
  }

  .ai-effect__content {
    gap: 30px;
  }

  .ai-effect__visual img {
    max-width: 100%;
  }

  .ai-effect__list li {
    grid-template-columns: 40px minmax(0, 1fr);
    column-gap: 12px;
    row-gap: 6px;
    padding: 20px 0;
  }

  .ai-effect__list li::before {
    font-size: 26px;
  }

  .ai-effect__list strong {
    font-size: 18px;
    line-height: 1.42;
  }

  .ai-effect__list p {
    font-size: 14px;
    line-height: 1.65;
  }

  .ai-effect__list p br {
    display: none;
  }
}

.ai-faq {
  padding-top: 132px;
}

.ai-faq .faq-list {
  max-width: 1120px;
  margin: 0 auto;
}

.ai-faq__action {
  display: flex;
  justify-content: center;
  margin-top: 36px;
}

.ai-page [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}

.ai-page [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .ai-page [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 1199px) {
  .ai-section,
  .ai-faq {
    padding: 104px 0;
  }

  .ai-head,
  .ai-title {
    margin-bottom: 64px;
  }

  .ai-intro__grid,
  .ai-pillars__grid,
  .ai-stage-grid,
  .ai-strength__grid {
    gap: 20px;
  }

  .ai-intro-card {
    min-height: 320px;
    padding: 40px 28px 44px;
  }

  .ai-intro-card img {
    width: 140px;
    height: 140px;
  }

  .ai-pillars__grid {
    gap: 32px;
  }

  .ai-pillar img {
    width: min(100%, 260px);
  }

  .ai-service-grid {
    gap: 28px;
  }

  .ai-service {
    min-height: 280px;
    padding: 40px 36px;
  }

  .ai-usecase__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ai-usecase__card:nth-child(2) {
    border-right: 0;
  }

  .ai-usecase__card:nth-child(1),
  .ai-usecase__card:nth-child(2) {
    border-bottom: 1px solid #dfe7f3;
  }

  .ai-foundation-item__toggle {
    padding: 32px 34px 28px;
  }

  .ai-foundation-item__topline {
    gap: 24px;
  }

  .ai-foundation-item__heading {
    font-size: 24px;
  }

  .ai-foundation-item__summary,
  .ai-foundation-item__desc {
    font-size: 16px;
  }

  .ai-foundation-item__panel-inner {
    padding: 0 34px 34px;
  }

  .ai-foundation-item__layout {
    grid-template-columns: minmax(0, 0.78fr) minmax(500px, 1.22fr);
    gap: 28px;
  }

  .ai-foundation-item__logos {
    min-height: 62px;
  }

  .ai-foundation-item__logos img {
    height: 26px;
  }

  .ai-foundation-item__chips {
    padding: 22px;
    gap: 12px;
  }

  .ai-foundation-item__chips span {
    font-size: 15px;
  }

  .ai-foundation-item__chips--wide span {
    min-height: 84px;
    font-size: 16px;
  }

  .ai-foundation-item__detail-box {
    grid-template-columns: 88px minmax(0, 1fr);
  }

  .ai-experience__head h2 {
    font-size: 54px;
  }

  .ai-experience__lead {
    font-size: 31px;
  }

  .ai-experience__copy {
    font-size: 17px;
  }

  .ai-experience__diagram-track {
    min-width: 1320px;
  }

  .ai-experience__connector-box {
    min-height: 74px;
    font-size: 19px;
  }

  .ai-experience__insights {
    gap: 24px;
  }

  .ai-experience__insight-box {
    min-height: 244px;
    padding: 28px 30px 30px;
  }

  .ai-experience__insight-box strong {
    font-size: 24px;
  }

  .ai-strength-card {
    min-height: 286px;
    padding: 30px 22px 26px;
  }

  .ai-strength-card h3 {
    font-size: 18px;
  }

  .ai-strength-card h3::after {
    width: 28px;
    margin-top: 14px;
  }

  .ai-strength-card p {
    margin-top: 18px;
    font-size: 14px;
    line-height: 1.75;
  }

  .ai-effect__content {
    grid-template-columns: minmax(0, 700px) minmax(0, 1fr);
    gap: 40px;
    align-items: center;
  }

  .ai-effect__list li {
    grid-template-columns: 64px minmax(0, 1fr);
    column-gap: 18px;
    row-gap: 12px;
    padding: 26px 0 24px;
  }

  .ai-effect__list li::before {
    font-size: 36px;
  }

  .ai-effect__list strong {
    font-size: 22px;
  }

  .ai-effect__list p {
    font-size: 16px;
    line-height: 1.7;
  }
}

@media (max-width: 1024px) {
  .ai-section,
  .ai-faq {
    padding: 96px 0;
  }

  .ai-head h2,
  .ai-title h2 {
    font-size: 36px;
  }

  .ai-title p {
    font-size: 15px;
  }

  .ai-intro__grid {
    gap: 18px;
  }

  .ai-intro-card {
    min-height: 300px;
    padding: 36px 24px 40px;
  }

  .ai-intro-card img {
    width: 120px;
    height: 120px;
  }

  .ai-intro-card p {
    font-size: 16px;
  }

  .ai-pillars__grid {
    gap: 20px;
  }

  .ai-business__lead {
    font-size: 28px;
  }

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

  .ai-service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .ai-service {
    min-height: 0;
    padding: 34px 28px;
  }

  .ai-service h3 {
    font-size: 28px;
  }

  .ai-usecase__card {
    min-height: 0;
    padding: 38px 28px;
  }

  .ai-usecase__card strong {
    font-size: 24px;
  }

  .ai-usecase__card li {
    font-size: 16px;
  }

  .ai-foundation-item__toggle {
    padding: 30px 32px 26px;
  }

  .ai-foundation-item__topline {
    gap: 22px;
  }

  .ai-foundation-item__heading {
    font-size: 23px;
  }

  .ai-foundation-item__summary,
  .ai-foundation-item__desc {
    font-size: 16px;
  }

  .ai-foundation-item__panel-inner {
    padding: 0 32px 34px;
  }

  .ai-foundation-item__layout {
    grid-template-columns: minmax(0, 0.82fr) minmax(420px, 1.18fr);
    gap: 24px;
  }

  .ai-foundation-item__visual-box--logo {
    padding: 14px 16px;
  }

  .ai-foundation-item__logos {
    min-height: 58px;
    gap: 12px;
  }

  .ai-foundation-item__logos img {
    height: 24px;
  }

  .ai-foundation-item__chips {
    padding: 22px 18px;
  }

  .ai-foundation-item__chips span {
    font-size: 15px;
  }

  .ai-foundation-item__chips--wide span {
    min-height: 86px;
    font-size: 16px;
  }

  .ai-foundation-item__detail-box {
    grid-template-columns: 76px minmax(0, 1fr);
  }

  .ai-foundation-item__detail-box strong {
    font-size: 16px;
  }

  .ai-foundation-item__detail-box ul {
    padding: 20px 22px 20px 0;
  }

  .ai-experience__head h2 {
    font-size: 54px;
  }

  .ai-experience__lead {
    font-size: 31px;
  }

  .ai-experience__copy {
    font-size: 17px;
  }

  .ai-experience__diagram-track {
    min-width: 1280px;
  }

  .ai-experience__connector-box {
    min-height: 74px;
    font-size: 19px;
  }

  .ai-experience__insights {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

  .ai-experience__insight-box {
    min-height: 236px;
    padding: 26px 26px 28px;
  }

  .ai-experience__insight-box strong {
    margin-bottom: 18px;
    font-size: 22px;
  }

  .ai-experience__insight-box li {
    font-size: 15px;
  }

  .ai-strength__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
  }

  .ai-effect__content {
    grid-template-columns: minmax(0, 560px) minmax(0, 1fr);
    gap: 34px;
  }
}

@media (max-width: 767px) {
  .ai-section,
  .ai-faq {
    padding: 90px 0;
  }

  .hero--ai .hero-bg {
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.94) 44%, rgba(255, 255, 255, 0.34) 100%),
      url("/images/redesign/AI/hero_ai_main.png") no-repeat 74% 32% / cover;
  }

  .ai-head,
  .ai-title {
    margin-bottom: 48px;
  }

  .ai-head h2,
  .ai-title h2 {
    font-size: 30px;
  }

  .ai-effect__content {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .ai-title p {
    font-size: 14px;
    line-height: 1.75;
  }

  .ai-intro__grid,
  .ai-pillars__grid,
  .ai-stage-grid,
  .ai-service-grid,
  .ai-strength__grid,
  .ai-experience__insights {
    grid-template-columns: 1fr;
  }

  .ai-intro-card {
    min-height: auto;
    padding: 36px 24px 40px;
  }

  .ai-intro-card img {
    width: 112px;
    height: 112px;
    margin-bottom: 24px;
  }

  .ai-intro-card p,
  .ai-pillars__desc p {
    font-size: 15px;
  }

  .ai-pillars__lead {
    font-size: 16px;
  }

  .ai-pillar img {
    width: min(100%, 240px);
  }

  .ai-business__lead {
    font-size: 24px;
    line-height: 1.55;
  }

  .ai-business__stage-label,
  .ai-business__service-label {
    margin-bottom: 24px;
    font-size: 20px;
  }

  .ai-stage-grid {
    gap: 18px;
  }

  .ai-service {
    padding: 30px 24px;
  }

  .ai-service h3 {
    font-size: 24px;
  }

  .ai-usecase {
    margin-top: 72px;
  }

  .ai-usecase h3 {
    margin-bottom: 32px;
    font-size: 26px;
  }

  .ai-usecase__grid {
    grid-template-columns: 1fr;
  }

  .ai-usecase__card {
    min-height: auto;
    padding: 36px 24px;
    border-right: 0;
    border-bottom: 1px solid #dfe7f3;
  }

  .ai-usecase__card:last-child {
    border-bottom: 0;
  }

  .ai-usecase__card strong {
    font-size: 22px;
  }

  .ai-usecase__card li {
    font-size: 16px;
  }

  .ai-foundation__stack {
    gap: 16px;
  }

  .ai-foundation-item__toggle {
    padding: 24px 22px;
  }

  .ai-foundation-item__topline {
    flex-wrap: wrap;
    gap: 14px;
  }

  .ai-foundation-item__badge {
    min-width: 88px;
    height: 34px;
    font-size: 17px;
  }

  .ai-foundation-item__heading {
    font-size: 21px;
  }

  .ai-foundation-item__summary,
  .ai-foundation-item__desc {
    margin-top: 18px;
    font-size: 15px;
    line-height: 1.8;
  }

  .ai-foundation-item__icon {
    width: 24px;
    height: 24px;
    margin-left: 16px;
  }

  .ai-foundation-item__icon::before {
    width: 20px;
  }

  .ai-foundation-item__icon::after {
    height: 20px;
  }

  .ai-foundation-item__panel-inner {
    padding: 0 22px 24px;
  }

  .ai-foundation-item__layout {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .ai-foundation-item__main {
    gap: 18px;
  }

  .ai-foundation-item__desc {
    order: 2;
    margin-top: 0;
  }

  .ai-foundation-item__visual-box {
    order: 1;
    margin-top: 0;
  }

  .ai-foundation-item__visual-box--logo {
    padding: 18px 14px;
  }

  .ai-foundation-item__logos {
    grid-template-columns: 1fr;
    min-height: 0;
    gap: 14px;
  }

  .ai-foundation-item__logos img {
    height: 30px;
  }

  .ai-foundation-item__chips,
  .ai-foundation-item__chips--wide {
    grid-template-columns: 1fr;
    padding: 18px;
  }

  .ai-foundation-item__chips--wide span {
    min-height: 78px;
    border-radius: 26px;
  }

  .ai-foundation-item__detail-box {
    grid-template-columns: 1fr;
  }

  .ai-foundation-item__detail-box strong {
    justify-content: flex-start;
    padding: 16px 18px 4px;
  }

  .ai-foundation-item__detail-box ul {
    padding: 0 18px 18px;
  }

  .ai-experience__head h2 {
    font-size: 42px;
  }

  .ai-experience__lead {
    font-size: 24px;
    line-height: 1.55;
  }

  .ai-experience__copy {
    margin-top: 28px;
    font-size: 15px;
    line-height: 1.85;
  }

  .ai-experience__diagram-scroll {
    margin-top: 48px;
  }

  .ai-experience__diagram-track {
    min-width: 1140px;
  }

  .ai-experience__connector-guides {
    height: 30px;
  }

  .ai-experience__connector-box {
    min-height: 66px;
    font-size: 17px;
  }

  .ai-experience__insights {
    gap: 18px;
    margin-top: 26px;
  }

  .ai-experience__insight-box {
    min-height: 0;
    padding: 24px 22px 26px;
  }

  .ai-experience__insight-box strong {
    margin-bottom: 16px;
    font-size: 20px;
  }

  .ai-experience__insight-box li {
    font-size: 14px;
    line-height: 1.85;
  }

  .ai-strength-card {
    min-height: 0;
    padding: 28px 22px 24px;
  }

  .ai-strength-card h3 {
    font-size: 20px;
  }

  .ai-strength-card p {
    font-size: 15px;
    line-height: 1.8;
  }

  .ai-effect__visual img {
    width: 100%;
    max-width: 640px;
  }

  .ai-effect__list li {
    grid-template-columns: 54px minmax(0, 1fr);
    column-gap: 14px;
    row-gap: 10px;
    padding: 22px 0 20px;
  }

  .ai-effect__list li::before {
    font-size: 30px;
  }

  .ai-effect__list strong {
    font-size: 20px;
  }

  .ai-effect__list p {
    font-size: 15px;
    line-height: 1.7;
  }
}

@media (max-width: 480px) {
  .ai-head,
  .ai-title {
    margin-bottom: 42px;
  }

  .ai-head h2,
  .ai-title h2 {
    font-size: 30px;
  }

  .ai-title p,
  .ai-intro-card p,
  .ai-pillars__desc p,
  .ai-business__summary,
  .ai-service li,
  .ai-usecase__card li,
  .ai-foundation-item__summary,
  .ai-foundation-item__desc,
  .ai-foundation-item__detail-box li,
  .ai-experience__copy,
  .ai-experience__insight-box li,
  .ai-effect__list p {
    font-size: 14px;
  }

  .ai-intro-card,
  .ai-strength-card,
  .ai-usecase__card,
  .ai-service,
  .ai-experience__insight-box {
    padding-left: 20px;
    padding-right: 20px;
  }

  .ai-intro-card h3,
  .ai-service h3,
  .ai-foundation-item__heading {
    font-size: 22px;
  }

  .ai-experience__head h2 {
    font-size: 36px;
  }

  .ai-experience__lead {
    font-size: 21px;
  }

  .ai-experience__copy {
    font-size: 14px;
  }

  .ai-experience__insight-box strong {
    font-size: 18px;
  }
}

@media (max-width: 1024px) {
  .ai-experience__diagram-scroll {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
  }

  .ai-experience__diagram-track {
    width: 100%;
    max-width: 100%;
    min-width: 0;
  }

  .ai-experience__diagram-image {
    width: 100%;
    max-width: 100%;
    height: auto;
  }

  .ai-experience__connector-box {
    box-sizing: border-box;
    width: 100%;
  }
}

@media (max-width: 767px) {
  .ai-experience__diagram-scroll {
    margin-top: 36px;
  }

  .ai-experience__connector-guides {
    height: 22px;
  }

  .ai-experience__connector-box {
    min-height: 52px;
    padding: 12px;
    font-size: 14px;
  }
}