.ai-hero{
  position:relative;
  overflow-x:clip;
  padding-top:clamp(48px,7vw,92px);
  padding-bottom:clamp(58px,8vw,104px);
}
.ai-hero::before{
  content:"";
  position:absolute;
  inset:-18% -12% auto 40%;
  height:120%;
  pointer-events:none;
  background:radial-gradient(circle at 72% 20%,var(--color-brand-soft),transparent 58%);
}
.ai-hero-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);
  align-items:center;
  gap:clamp(42px,6vw,82px);
}
.ai-hero-copy{
  min-width:0;
}
.ai-hero-copy h1{
  max-width:650px;
  margin:22px 0 18px;
}
.ai-hero-copy .lead{
  max-width:650px;
  margin-bottom:0;
}
.ai-hero-actions{
  margin-top:28px;
}
.ai-facts{
  justify-content:flex-start;
  margin-top:24px;
}
.ai-console{
  min-width:0;
  overflow:hidden;
  border:1px solid var(--color-line);
  border-radius:var(--radius-lg);
  background:var(--color-page);
  box-shadow:var(--shadow-window);
}
.ai-console-chrome{
  display:flex;
  align-items:center;
  gap:7px;
  min-height:46px;
  padding:10px 16px;
  border-bottom:1px solid var(--color-line);
  background:var(--color-panel);
}
.ai-console-title{
  margin-left:7px;
  color:var(--color-muted);
  font-family:var(--font-mono);
  font-size:12px;
}
.ai-console-state{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-left:auto;
  font-size:12px;
  font-weight:700;
  white-space:nowrap;
}
.ai-console-body{
  display:grid;
  grid-template-columns:116px minmax(0,1fr);
  min-height:390px;
}
.ai-tool-rail{
  display:flex;
  flex-direction:column;
  gap:6px;
  padding:18px 12px;
  border-right:1px solid var(--color-line);
  background:var(--color-panel);
}
.ai-tool-chip{
  display:flex;
  align-items:center;
  min-height:38px;
  padding:8px 10px;
  border-radius:var(--radius-sm);
  color:var(--color-muted);
  font-size:12px;
  font-weight:650;
}
.ai-tool-chip.is-current{
  background:var(--color-page);
  color:var(--color-ink);
  box-shadow:inset 0 0 0 1px var(--color-line);
}
.ai-tool-chip.is-current::before{
  content:"";
  width:3px;
  height:15px;
  margin-right:7px;
  border-radius:var(--radius-pill);
  background:var(--color-brand);
}
.ai-flow{
  display:flex;
  align-items:center;
  justify-content:center;
  min-width:0;
  padding:42px 20px 18px;
}
.ai-flow-node{
  display:flex;
  min-width:0;
  flex:0 1 132px;
  flex-direction:column;
  align-items:center;
  gap:12px;
  text-align:center;
}
.ai-flow-node > span:last-child{
  min-width:0;
}
.ai-flow-node strong,
.ai-flow-node small{
  display:block;
}
.ai-flow-node strong{
  font-size:13px;
}
.ai-flow-node small{
  margin-top:4px;
  color:var(--color-muted);
  font-size:10px;
}
.ai-flow-node.is-route .ai-flow-icon{
  border-color:var(--color-brand);
  background:var(--color-brand-soft);
  color:var(--color-brand-deep);
}
.ai-flow-icon{
  display:grid;
  place-items:center;
  width:58px;
  height:58px;
  border:1px solid var(--color-line);
  border-radius:50%;
  background:var(--color-panel);
  color:var(--color-muted);
}
.ai-flow-line{
  position:relative;
  flex:1 1 50px;
  min-width:24px;
  height:1px;
  margin-bottom:42px;
  background:var(--color-line);
}
.ai-flow-line span{
  position:absolute;
  top:50%;
  left:50%;
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--color-brand);
  transform:translate(-50%,-50%);
  box-shadow:var(--shadow-button);
}
.ai-console-note{
  grid-column:2;
  align-self:end;
  display:flex;
  align-items:center;
  gap:12px;
  margin:0 18px 18px;
  padding:14px;
  border:1px solid var(--color-line);
  border-radius:var(--radius-md);
  background:var(--color-panel);
}
.ai-console-note p{
  margin:0;
  color:var(--color-muted);
  font-size:12px;
}

.ai-page{
  position:relative;
}
.ai-page > .toc-tabs{
  top:12px;
}
.ai-section{
  padding-top:clamp(64px,8vw,104px);
  padding-bottom:clamp(64px,8vw,104px);
  border-bottom:1px solid var(--color-line);
}
.ai-section:last-child{
  border-bottom:0;
}
.ai-section-heading{
  max-width:800px;
  margin:0 auto 42px;
  text-align:center;
}
.ai-section-heading h2{
  margin:18px 0 16px;
}
.ai-section-heading p{
  margin-bottom:0;
  color:var(--color-muted);
  font-size:18px;
}

.ai-principle-list{
  display:grid;
  max-width:940px;
  margin-inline:auto;
  border-top:1px solid var(--color-line);
}
.ai-principle{
  display:grid;
  grid-template-columns:72px minmax(0,1fr);
  gap:24px;
  padding-top:30px;
  padding-bottom:30px;
  border-bottom:1px solid var(--color-line);
}
.ai-principle-index{
  display:grid;
  place-items:center;
  align-self:start;
  width:48px;
  height:48px;
  border-radius:50%;
  background:var(--color-brand-soft);
  color:var(--color-brand-deep);
  font-weight:800;
}
.ai-principle h3{
  margin-bottom:10px;
  font-size:1.25rem;
}
.ai-principle p{
  margin-bottom:0;
  color:var(--color-muted);
}
.ai-principle-list + .callout{
  max-width:940px;
  margin:30px auto 0;
}

.ai-tool-table td{
  min-width:150px;
}
.ai-tool-table td:nth-child(2),
.ai-tool-table td:nth-child(3),
.ai-tool-table td:nth-child(4){
  color:var(--color-muted);
}
.ai-tool-ledger{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  max-width:1040px;
  margin:34px auto 0;
  border-top:1px solid var(--color-line);
  border-left:1px solid var(--color-line);
}
.ai-tool-ledger article{
  min-width:0;
  padding:28px;
  border-right:1px solid var(--color-line);
  border-bottom:1px solid var(--color-line);
}
.ai-tool-ledger h3{
  margin-bottom:12px;
  font-size:1.18rem;
}
.ai-tool-ledger p{
  margin-bottom:0;
  color:var(--color-muted);
}

.ai-guidance-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
  max-width:1040px;
  margin-inline:auto;
}
.ai-guidance{
  min-width:0;
  padding:28px;
}
.ai-guidance h3{
  margin-bottom:12px;
  font-size:1.18rem;
}
.ai-guidance p{
  margin-bottom:0;
  color:var(--color-muted);
}
.ai-guidance-grid + .callout{
  max-width:1040px;
  margin:28px auto 0;
}

.ai-compare{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
  max-width:1040px;
  margin-inline:auto;
}
.ai-compare-panel{
  min-width:0;
  padding:30px;
  border:1px solid var(--color-line);
  border-top:4px solid var(--color-brand);
  border-radius:var(--radius-md);
  background:var(--color-page);
  box-shadow:var(--shadow-card);
}
.ai-compare-panel.is-api{
  border-top-color:var(--color-route);
  background:var(--color-panel);
}
.ai-compare-panel h3{
  margin:18px 0;
}
.ai-compare-panel ul{
  display:grid;
  gap:13px;
  margin-bottom:0;
  padding-left:20px;
  color:var(--color-muted);
}
.ai-body-copy{
  max-width:900px;
  margin:30px auto 0;
  color:var(--color-muted);
}

.ai-dev-steps{
  display:grid;
  max-width:940px;
  margin-inline:auto;
  padding:0;
  list-style:none;
  counter-reset:ai-dev;
}
.ai-dev-steps li{
  position:relative;
  display:grid;
  grid-template-columns:54px minmax(0,1fr);
  gap:22px;
  padding-top:28px;
  padding-bottom:28px;
  border-bottom:1px solid var(--color-line);
  counter-increment:ai-dev;
}
.ai-dev-steps li::before{
  content:counter(ai-dev);
  display:grid;
  place-items:center;
  width:42px;
  height:42px;
  border:1px solid var(--color-brand);
  border-radius:50%;
  background:var(--color-brand-soft);
  color:var(--color-brand-deep);
  font-family:var(--font-mono);
  font-weight:800;
}
.ai-dev-steps h3{
  margin-bottom:10px;
  font-size:1.2rem;
}
.ai-dev-steps p{
  margin-bottom:0;
  color:var(--color-muted);
}
.ai-dev-steps + .callout{
  max-width:940px;
  margin:28px auto 0;
}

.ai-selection{
  border-bottom:0;
}
.ai-selection-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
  max-width:1040px;
  margin-inline:auto;
}
.ai-selection-item{
  display:grid;
  grid-template-columns:38px minmax(0,1fr);
  gap:15px;
  min-width:0;
  padding:24px;
  border:1px solid var(--color-line);
  border-radius:var(--radius-md);
  background:var(--color-page);
}
.ai-selection-mark{
  display:grid;
  place-items:center;
  width:32px;
  height:32px;
  border-radius:50%;
  background:var(--color-success-soft);
  color:var(--color-success);
  font-weight:800;
}
.ai-selection-item h3{
  margin-bottom:8px;
  font-size:1.08rem;
}
.ai-selection-item p{
  margin-bottom:0;
  color:var(--color-muted);
}
.ai-next-links{
  position:relative;
  overflow-x:clip;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  align-items:center;
  gap:28px;
  max-width:1040px;
  margin:34px auto 0;
  padding:32px;
  border:1px solid var(--color-line);
  border-radius:var(--radius-lg);
  background:var(--color-panel);
}
.ai-next-links::after{
  content:"";
  position:absolute;
  top:-90px;
  right:-80px;
  width:230px;
  height:230px;
  border-radius:50%;
  background:var(--color-brand-soft);
  pointer-events:none;
}
.ai-next-links > *{
  position:relative;
  z-index:1;
}
.ai-next-links .actions{
  justify-content:flex-end;
}

@media (max-width:1080px){
  .ai-hero-grid{
    grid-template-columns:1fr;
  }
  .ai-hero-copy{
    max-width:780px;
    margin-inline:auto;
    text-align:center;
  }
  .ai-hero-copy h1,
  .ai-hero-copy .lead{
    margin-inline:auto;
  }
  .ai-hero-actions,
  .ai-facts{
    justify-content:center;
  }
  .ai-console{
    width:100%;
    max-width:820px;
    margin-inline:auto;
  }
}

@media (max-width:768px){
  .ai-hero{
    padding-top:38px;
    padding-bottom:64px;
  }
  .ai-console-body{
    grid-template-columns:1fr;
    min-height:0;
  }
  .ai-tool-rail{
    flex-direction:row;
    overflow-x:auto;
    border-right:0;
    border-bottom:1px solid var(--color-line);
    overscroll-behavior-inline:contain;
  }
  .ai-tool-chip{
    flex:0 0 auto;
  }
  .ai-flow{
    padding-top:34px;
  }
  .ai-console-note{
    grid-column:1;
  }
  .ai-section-heading p{
    font-size:16px;
  }
  .ai-tool-ledger,
  .ai-guidance-grid,
  .ai-compare,
  .ai-selection-grid{
    grid-template-columns:1fr;
  }
  .ai-tool-ledger{
    border-left:0;
  }
  .ai-tool-ledger article{
    border-left:1px solid var(--color-line);
  }
  .ai-next-links{
    grid-template-columns:1fr;
  }
  .ai-next-links .actions{
    justify-content:flex-start;
  }
}

@media (max-width:560px){
  .ai-console-title{
    display:none;
  }
  .ai-console-state{
    font-size:11px;
  }
  .ai-flow{
    align-items:stretch;
    flex-direction:column;
    gap:10px;
    padding:26px 18px 14px;
  }
  .ai-flow-node{
    flex:0 0 auto;
    flex-direction:row;
    justify-content:flex-start;
    text-align:left;
  }
  .ai-flow-icon{
    width:48px;
    height:48px;
  }
  .ai-flow-line{
    flex:0 0 24px;
    width:1px;
    min-width:0;
    height:24px;
    margin:0 0 0 24px;
  }
  .ai-console-note{
    align-items:flex-start;
    flex-direction:column;
  }
  .ai-principle{
    grid-template-columns:1fr;
    gap:15px;
  }
  .ai-guidance,
  .ai-compare-panel,
  .ai-tool-ledger article{
    padding:22px;
  }
  .ai-dev-steps li{
    grid-template-columns:42px minmax(0,1fr);
    gap:14px;
  }
  .ai-dev-steps li::before{
    width:36px;
    height:36px;
  }
  .ai-selection-item{
    padding:20px;
  }
  .ai-next-links{
    padding:24px;
  }
}

@media (prefers-reduced-motion:reduce){
  .ai-flow-line span{
    transform:translate(-50%,-50%);
  }
}