.ai-hero{
  position:relative;
  padding-top:56px;
  padding-bottom:76px;
  max-width:100%;
  overflow-x:clip;
}
.ai-hero::before{
  content:"";
  position:absolute;
  inset:-120px 0 0;
  background:linear-gradient(180deg,var(--alpha-green-07),var(--alpha-green-04),var(--alpha-bg-00));
  pointer-events:none;
}
.ai-hero-layout{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,46fr) minmax(0,54fr);
  gap:54px;
  align-items:center;
}
.ai-hero-copy{
  position:relative;
  z-index:2;
  min-width:0;
}
.ai-hero-copy h1{
  max-width:680px;
  margin-top:24px;
  margin-bottom:0;
}
.ai-hero-lead{
  max-width:650px;
  margin-top:24px;
  margin-bottom:0;
  font-size:19px;
  line-height:1.75;
}
.ai-trust-row{
  display:flex;
  align-items:center;
  gap:9px 18px;
  flex-wrap:wrap;
  margin-top:22px;
  color:var(--color-muted);
  font-size:13px;
  font-weight:700;
}
.ai-trust-row span{
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.ai-hero-visual{
  min-width:0;
}
.ai-signal-board{
  position:relative;
  width:100%;
  min-height:520px;
  border-radius:var(--radius-xl);
  background:linear-gradient(155deg,var(--color-deep-start),var(--color-deep-end));
  box-shadow:var(--shadow-panel),inset 0 1px 0 var(--alpha-white-10);
  overflow:hidden;
}
.ai-signal-board::before{
  content:"";
  position:absolute;
  top:-120px;
  right:-100px;
  width:430px;
  height:430px;
  border-radius:var(--radius-pill);
  background:radial-gradient(circle,var(--alpha-green-22),var(--alpha-green-08),var(--alpha-green-00));
}
.ai-signal-board::after{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(circle at 50% 50%,var(--alpha-green-10),var(--color-transparent) 38%);
  pointer-events:none;
}
.ai-core{
  position:absolute;
  left:50%;
  top:50%;
  z-index:3;
  display:grid;
  place-items:center;
  width:146px;
  height:146px;
  border:1px solid var(--alpha-white-18);
  border-radius:var(--radius-pill);
  background:radial-gradient(circle at 68% 24%,var(--color-accent-soft),var(--color-accent) 28%,var(--color-globe) 72%,var(--color-deep-mid));
  box-shadow:0 26px 54px -18px var(--alpha-green-50),inset 0 1px 0 var(--alpha-white-34);
  transform:translate(-50%,-50%);
}
.ai-core svg{
  width:82px;
  height:82px;
}
.ai-core path{
  fill:none;
  stroke:var(--color-deep-start);
  stroke-width:3;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.ai-links{
  position:absolute;
  inset:0;
  z-index:1;
  width:100%;
  height:100%;
}
.ai-links path{
  fill:none;
  stroke:var(--alpha-white-26);
  stroke-width:1;
  stroke-dasharray:5 7;
}
.ai-tool{
  position:absolute;
  z-index:4;
  display:flex;
  min-width:126px;
  padding:11px 14px;
  flex-direction:column;
  border:1px solid var(--alpha-white-18);
  border-radius:var(--radius-sm);
  background:var(--alpha-white-95);
  color:var(--color-text);
  box-shadow:var(--highlight),var(--shadow-card);
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.25;
}
.ai-tool small{
  margin-top:4px;
  color:var(--color-muted);
  font-family:var(--font-body);
  font-size:11px;
  font-weight:650;
}
.tool-chatgpt{left:7%;top:13%}
.tool-claude{right:7%;top:13%}
.tool-gemini{left:4%;top:47%}
.tool-copilot{right:4%;top:47%}
.tool-midjourney{left:11%;bottom:10%}
.tool-cursor{right:11%;bottom:10%}
.ai-board-caption{
  position:absolute;
  left:50%;
  bottom:22px;
  z-index:5;
  display:flex;
  align-items:center;
  gap:9px;
  min-height:34px;
  padding:6px 14px;
  border:1px solid var(--alpha-white-10);
  border-radius:var(--radius-pill);
  background:var(--alpha-ink-42);
  color:var(--alpha-white-86);
  font:650 12px/1.3 var(--font-mono);
  transform:translateX(-50%);
  white-space:nowrap;
}

.ai-article{
  position:relative;
}
.ai-section{
  min-width:0;
  padding-top:88px;
  padding-bottom:32px;
}
.ai-section-heading{
  max-width:850px;
  margin-bottom:34px;
}
.ai-section-heading h2{
  margin-top:12px;
  margin-bottom:16px;
}
.ai-section-heading p{
  margin-bottom:0;
  font-size:17px;
  line-height:1.8;
}
.ai-index{
  color:var(--color-accent-dark);
  font:750 12px/1.4 var(--font-mono);
  letter-spacing:.08em;
}
.ai-principle-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.ai-principle{
  padding:26px;
}
.ai-principle-icon{
  display:grid;
  place-items:center;
  width:48px;
  height:48px;
  margin-bottom:22px;
  border-radius:var(--radius-pill);
  background:var(--color-accent);
  color:var(--color-deep-start);
}
.ai-principle-icon svg{
  width:25px;
  height:25px;
}
.ai-principle-icon path,
.ai-dev-step svg path{
  fill:none;
  stroke:currentColor;
  stroke-width:1.8;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.ai-principle h3{
  font-size:22px;
}
.ai-principle p{
  margin-bottom:0;
  line-height:1.85;
}
.ai-tool-table td{
  min-width:150px;
}
.ai-tool-table td:first-child{
  font-family:var(--font-display);
}
.ai-table-note{
  margin-top:18px;
  margin-bottom:0;
  padding-left:18px;
  border-left:4px solid var(--color-accent);
  font-size:14px;
}
.ai-split{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:40px;
  align-items:start;
  padding:36px;
  border-radius:var(--radius-xl);
  background:var(--color-panel-soft);
  box-shadow:var(--highlight),var(--shadow-accent);
}
.ai-split .ai-section-heading{
  margin-bottom:0;
}
.ai-check-card{
  padding:24px;
}
.ai-check-card h3{
  margin-bottom:18px;
  font-size:22px;
}
.ai-check-list{
  display:grid;
  gap:14px;
  margin:0;
  padding:0;
  list-style:none;
}
.ai-check-list li{
  position:relative;
  padding-left:30px;
  color:var(--color-muted);
}
.ai-check-list li::before{
  content:"✓";
  position:absolute;
  left:0;
  top:2px;
  display:grid;
  place-items:center;
  width:20px;
  height:20px;
  border-radius:var(--radius-pill);
  background:var(--color-accent);
  color:var(--color-text);
  font-weight:900;
}
.ai-copy-block{
  max-width:920px;
  margin-top:32px;
}
.ai-mode-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.ai-mode-card{
  grid-template-columns:1fr;
}
.ai-mode-card h3{
  margin-top:18px;
}
.ai-mode-card .feature-inner strong{
  display:block;
  margin-bottom:12px;
}
.ai-mode-card ul{
  display:grid;
  gap:8px;
  margin-bottom:0;
  color:var(--color-muted);
}
.ai-dev-flow{
  position:relative;
  display:grid;
  gap:24px;
  padding-left:22px;
}
.ai-dev-flow::before{
  content:"";
  position:absolute;
  top:0;
  bottom:0;
  left:44px;
  width:1px;
  background:var(--color-border);
}
.ai-dev-step{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:44px minmax(0,1fr);
  gap:26px;
  padding:30px;
}
.ai-dev-step .timeline-node{
  margin:0;
  color:var(--color-deep-start);
}
.ai-dev-step h3{
  margin-bottom:12px;
}
.ai-dev-step p:last-child{
  margin-bottom:0;
}
.ai-failure-list{
  max-width:980px;
}
.ai-choice-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.ai-choice{
  padding:28px;
}
.ai-choice h3{
  font-size:22px;
}
.ai-choice p{
  margin-bottom:0;
  line-height:1.85;
}
.ai-route-links{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:30px;
  align-items:center;
  margin-top:32px;
  padding:30px;
  border:1px solid var(--color-border);
  border-radius:var(--radius-xl);
  background:var(--color-panel);
  box-shadow:var(--highlight),var(--shadow-accent);
}
.ai-route-links h3{
  margin-bottom:8px;
}
.ai-route-links p{
  margin-bottom:0;
}
.ai-route-actions{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  justify-content:flex-end;
}

@media (max-width:1100px){
  .ai-hero-layout{
    grid-template-columns:1fr;
  }
  .ai-hero-copy{
    max-width:760px;
  }
  .ai-hero-visual{
    max-width:820px;
    width:100%;
    margin-inline:auto;
  }
  .ai-principle-grid,
  .ai-choice-grid{
    grid-template-columns:1fr 1fr;
  }
}
@media (max-width:768px){
  .ai-hero{
    padding-top:36px;
    padding-bottom:48px;
  }
  .ai-hero-layout{
    gap:42px;
  }
  .ai-hero-lead{
    font-size:17px;
  }
  .ai-signal-board{
    min-height:0;
    aspect-ratio:4/3;
  }
  .ai-core{
    width:112px;
    height:112px;
  }
  .ai-core svg{
    width:64px;
    height:64px;
  }
  .ai-tool{
    min-width:104px;
    padding:9px 11px;
    font-size:12px;
  }
  .ai-tool small{
    display:none;
  }
  .tool-chatgpt{left:4%;top:12%}
  .tool-claude{right:4%;top:12%}
  .tool-gemini{left:3%;top:48%}
  .tool-copilot{right:3%;top:48%}
  .tool-midjourney{left:7%;bottom:12%}
  .tool-cursor{right:7%;bottom:12%}
  .ai-board-caption{
    display:none;
  }
  .ai-section{
    padding-top:72px;
    padding-bottom:24px;
  }
  .ai-principle-grid,
  .ai-mode-grid,
  .ai-choice-grid{
    grid-template-columns:1fr;
  }
  .ai-split{
    grid-template-columns:1fr;
    padding:26px;
  }
  .ai-dev-flow{
    padding-left:0;
  }
  .ai-dev-flow::before{
    left:22px;
  }
  .ai-dev-step{
    grid-template-columns:44px minmax(0,1fr);
    gap:18px;
    padding:24px;
  }
  .ai-route-links{
    grid-template-columns:1fr;
  }
  .ai-route-actions{
    justify-content:flex-start;
  }
}
@media (max-width:520px){
  .ai-signal-board{
    aspect-ratio:1/1;
  }
  .ai-core{
    width:92px;
    height:92px;
  }
  .ai-core svg{
    width:52px;
    height:52px;
  }
  .ai-tool{
    min-width:88px;
    max-width:108px;
    padding:8px 9px;
    overflow:hidden;
    text-overflow:ellipsis;
    white-space:nowrap;
  }
  .tool-chatgpt{left:4%;top:9%}
  .tool-claude{right:4%;top:9%}
  .tool-gemini{left:3%;top:43%}
  .tool-copilot{right:3%;top:43%}
  .tool-midjourney{left:5%;bottom:8%}
  .tool-cursor{right:5%;bottom:8%}
  .ai-trust-row{
    align-items:flex-start;
    flex-direction:column;
  }
  .ai-split{
    padding:20px;
  }
  .ai-dev-step{
    grid-template-columns:1fr;
    margin-left:20px;
  }
  .ai-dev-flow::before{
    left:20px;
  }
  .ai-dev-step .timeline-node{
    margin-left:-22px;
  }
  .ai-route-actions{
    flex-direction:column;
  }
  .ai-route-actions .btn{
    width:100%;
  }
}