.ai-intro{
  position:relative;
  isolation:isolate;
  overflow-x:clip;
  max-width:100%;
  background:linear-gradient(180deg,var(--bg-top),var(--bg-bottom));
  padding-top:64px;
  padding-bottom:48px;
}
.ai-intro__halo{
  position:absolute;
  z-index:-1;
  inset:0 0 20% 42%;
  border-radius:var(--r-round);
  background:radial-gradient(closest-side,var(--glow),transparent);
  pointer-events:none;
}
.ai-intro__copy{
  text-align:center;
}
.ai-intro h1{
  max-width:1000px;
  margin:24px auto 0;
}
.ai-intro__lede{
  max-width:760px;
  margin:24px auto 0;
  color:var(--muted);
  font-size:20px;
  line-height:1.7;
}
.ai-path{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto minmax(0,1fr) auto minmax(0,1fr);
  align-items:center;
  gap:20px;
  max-width:1000px;
  margin:48px auto 0;
  padding:30px 24px;
  border:10px solid var(--panel);
  border-radius:var(--r-tray);
  background-color:var(--peach);
  background-image:radial-gradient(circle,var(--halftone) 1px,transparent 1.5px);
  background-size:8px 8px;
  box-shadow:var(--shadow-soft);
}
.ai-path>*{
  min-width:0;
}
.ai-path__step{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
}
.ai-path__step strong{
  font-size:18px;
}
.ai-path__step>span:last-child{
  color:var(--muted);
  font-size:13px;
}
.ai-path__arrow{
  font-family:var(--font-mono);
  font-size:24px;
  color:var(--accent-dark);
}
.ai-intro__note{
  max-width:760px;
  margin:22px auto 0;
  color:var(--muted);
  font-size:13px;
}
.ai-document{
  min-width:0;
}
.ai-document .section-head .tag{
  margin-bottom:18px;
}
.ai-explanation{
  gap:56px;
  max-width:1040px;
  margin-inline:auto;
}
.ai-explanation h3{
  margin:0 0 18px;
}
.ai-explanation p{
  color:var(--muted);
  line-height:1.9;
}
.ai-reading{
  max-width:var(--reading);
  margin-inline:auto;
}
.ai-reading p{
  color:var(--ink-2);
}
.ai-reading h3{
  margin-bottom:18px;
}
.ai-document .table-scroll{
  margin-bottom:36px;
}
.ai-next-links{
  margin-top:32px;
  padding-top:24px;
  border-top:1px solid var(--border);
}
@media(max-width:768px){
  .ai-intro{
    padding-top:40px;
    padding-bottom:36px;
  }
  .ai-intro__lede{
    font-size:18px;
  }
  .ai-path{
    gap:12px;
    padding:24px 16px;
  }
  .ai-path__step strong{
    font-size:15px;
  }
  .ai-explanation{
    gap:32px;
  }
}
@media(max-width:640px){
  .ai-intro__lede{
    font-size:17px;
  }
  .ai-path{
    grid-template-columns:minmax(0,1fr);
    gap:18px;
    margin-top:32px;
    border-width:10px;
    border-radius:var(--r-lg);
  }
  .ai-path__step{
    gap:6px;
  }
  .ai-path__step strong{
    font-size:17px;
  }
  .ai-path__arrow{
    transform:rotate(90deg);
    line-height:1;
  }
  .ai-explanation{
    gap:28px;
  }
}