.ai-intro-page .web-ai-hero {
  background-image: url(images/bg_ai_introduction.jpg);
  background-position: 50% 50%;
}

.ai-intro-page .ai-problems .web-ai-section-heading::before { content: "01"; }
.ai-intro-page .ai-support .web-ai-section-heading::before { content: "02"; }
.ai-intro-page .ai-starter .web-ai-section-heading::before { content: "03"; }
.ai-intro-page .ai-services .web-ai-section-heading::before { content: "04"; }
.ai-intro-page .ai-possibilities .web-ai-section-heading::before { content: "05"; }
.ai-intro-page .ai-before-after .web-ai-section-heading::before { content: "06"; }
.ai-intro-page .ai-hybrid .web-ai-section-heading::before { content: "07"; color: #90c3aa; }
.ai-intro-page .ai-process-section .web-ai-section-heading::before { content: "08"; }
.ai-intro-page .ai-price .web-ai-section-heading::before { content: "09"; }
.ai-intro-page .ai-safety .web-ai-section-heading::before { content: "10"; }
.ai-intro-page .ai-faq .web-ai-section-heading::before { content: "11"; }

.ai-intro-page .web-ai-section-heading > div > p:last-child {
  max-width: 780px;
  margin: 12px 0 0;
  color: var(--muted);
}

.ai-intro-page .ai-intro-offer-grid {
  margin-top: 12px;
}

.ai-intro-page .ai-intro-offer-grid li {
  min-height: 230px;
  padding: 30px;
  background: #fff;
}

.ai-intro-page .ai-intro-offer-grid strong {
  margin: 26px 0 12px;
  font-size: 1.25rem;
}

.ai-intro-page .ai-intro-index {
  color: var(--accent) !important;
  font-size: .75rem !important;
  font-weight: 700;
}

.ai-intro-page .ai-intro-note {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: .8rem;
  line-height: 1.75;
}

.ai-intro-page .ai-services-group-title {
  margin: 0 0 22px;
  font-size: 1.35rem;
  letter-spacing: .05em;
}

.ai-intro-page .ai-services-group-title--secondary { margin-top: 48px; }

.ai-intro-page .ai-service-card-grid,
.ai-intro-page .ai-comparison-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.ai-intro-page .ai-service-card-grid article,
.ai-intro-page .ai-comparison-grid article {
  padding: 30px;
  background: #fff;
  box-shadow: 0 10px 30px rgba(0, 0, 0, .07);
}

.ai-intro-page .ai-service-card-grid article { border-top: 4px solid var(--accent); }

.ai-intro-page .ai-service-name {
  min-height: 76px;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-bottom: 1px solid var(--line);
}

.ai-intro-page .ai-service-name span {
  color: var(--muted);
  font-size: .68rem;
  letter-spacing: .18em;
}

.ai-intro-page .ai-service-name strong {
  color: var(--ink);
  font-size: 1.55rem;
  line-height: 1.3;
}

.ai-intro-page .ai-service-card-grid article p { margin: 0; }
.ai-intro-page .ai-service-card-more { color: #fff; background: var(--dark) !important; }
.ai-intro-page .ai-service-card-more .ai-service-name { border-color: #53615b; }
.ai-intro-page .ai-service-card-more .ai-service-name strong { color: #fff; }

.ai-intro-page .ai-trademark-note {
  margin: 24px 0 0;
  color: var(--muted);
  font-size: .72rem;
}

.ai-intro-page .ai-comparison-grid article > span {
  display: block;
  margin: 22px 0;
  color: var(--accent);
  font-size: 1.75rem;
}

.ai-intro-page .ai-comparison-grid h3 { margin: 5px 0 12px; }
.ai-intro-page .ai-comparison-grid p { margin: 0; }
.ai-intro-page .ai-comparison-label { color: var(--muted); font-size: .68rem; font-weight: 700; letter-spacing: .18em; }
.ai-intro-page .ai-comparison-label--after { color: var(--accent); }

.ai-intro-page .ai-faq-list { border-top: 1px solid var(--line); }
.ai-intro-page .ai-faq-list details { border-bottom: 1px solid var(--line); background: #fff; }
.ai-intro-page .ai-faq-list summary {
  position: relative;
  padding: 24px 60px 24px 28px;
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}
.ai-intro-page .ai-faq-list summary::-webkit-details-marker { display: none; }
.ai-intro-page .ai-faq-list summary::after {
  content: "+";
  position: absolute;
  right: 28px;
  top: 18px;
  color: var(--accent);
  font-size: 1.75rem;
  font-weight: 400;
}
.ai-intro-page .ai-faq-list details[open] summary::after { content: "−"; }
.ai-intro-page .ai-faq-list details p { margin: 0; padding: 0 28px 24px; }

.ai-intro-page .ai-hybrid-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 64px minmax(0, 1fr);
  align-items: stretch;
}

.ai-intro-page .ai-hybrid-grid article {
  padding: clamp(34px, 5vw, 58px);
  background: #20342b;
  border: 1px solid #415049;
}

.ai-intro-page .ai-hybrid-grid article span {
  color: #90c3aa;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .16em;
}

.ai-intro-page .ai-hybrid-grid h3 {
  margin: 38px 0 18px;
  color: #fff;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
}

.ai-intro-page .ai-hybrid-grid p {
  margin-bottom: 0;
  color: #c8d4ce;
}

.ai-intro-page .ai-hybrid-plus {
  display: grid;
  place-items: center;
  color: #90c3aa;
  font-size: 2.2rem;
  font-weight: 300;
}

.ai-intro-page .ai-hybrid-message {
  max-width: 820px;
  margin: 38px auto 0;
  color: #fff;
  font-size: 1.12rem;
  font-weight: 700;
  line-height: 1.8;
  text-align: center;
}

.ai-intro-page .ai-process-section .web-ai-process {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 0;
  background: var(--line);
}

.ai-intro-page .ai-process-section .web-ai-process li {
  min-height: 190px;
  color: var(--ink);
  background: var(--tint);
  border: 0;
}

.ai-intro-page .ai-process-section .web-ai-process li + li {
  border: 0;
}

.ai-intro-page .ai-process-section .web-ai-process span {
  color: var(--accent);
}

.ai-intro-page .ai-process-section .web-ai-process p {
  color: var(--muted);
}

.ai-intro-page .ai-price-card {
  display: grid;
  grid-template-columns: minmax(260px, .75fr) minmax(0, 1.25fr);
  align-items: center;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.ai-intro-page .ai-price-card > div {
  padding: clamp(30px, 5vw, 56px);
}

.ai-intro-page .ai-price-card > div:first-child {
  color: #fff;
  background: var(--dark);
  text-align: center;
}

.ai-intro-page .ai-price-label {
  margin-bottom: 18px;
  color: #90c3aa;
  font-size: .82rem;
  font-weight: 700;
}

.ai-intro-page .ai-price-value {
  margin-bottom: 0;
}

.ai-intro-page .ai-price-value strong,
.ai-intro-page .ai-price-value span {
  display: block;
}

.ai-intro-page .ai-price-value strong {
  font-size: clamp(2rem, 4vw, 3.2rem);
}

.ai-intro-page .ai-price-value span {
  margin-top: 8px;
  color: #c8d4ce;
}

.ai-intro-page .ai-price-card > div:last-child > p:first-child {
  margin-bottom: 0;
  color: var(--muted);
}

@media (max-width: 900px) {
  .ai-intro-page .ai-hybrid-grid {
    grid-template-columns: 1fr;
  }

  .ai-intro-page .ai-hybrid-plus {
    min-height: 64px;
  }

  .ai-intro-page .ai-price-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .ai-intro-page .web-ai-hero {
    background-position: 60% 50%;
  }

  .ai-intro-page .ai-intro-offer-grid li {
    min-height: 0;
  }

  .ai-intro-page .ai-process-section .web-ai-process {
    grid-template-columns: 1fr;
  }

  .ai-intro-page .ai-process-section .web-ai-process li {
    min-height: 0;
  }

  .ai-intro-page .ai-service-card-grid,
  .ai-intro-page .ai-comparison-grid { grid-template-columns: 1fr; }

  .ai-intro-page .ai-service-card-grid article,
  .ai-intro-page .ai-comparison-grid article { padding: 24px; }

  .ai-intro-page .ai-faq-list summary { padding: 20px 50px 20px 18px; }
  .ai-intro-page .ai-faq-list summary::after { right: 18px; top: 14px; }
  .ai-intro-page .ai-faq-list details p { padding: 0 18px 20px; }
}