.guide{--header-height:0px;--guide-nav-gap:12px;--guide-nav-height:64px;max-width:1120px;margin:0 auto;padding:8px 0 80px;color:var(--text)}
.guide a:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.guide .eyebrow,.guide .section-label{color:var(--accent);font-size:12px;font-weight:700;letter-spacing:0.09em;text-transform:uppercase}
.guide h1{max-width:850px;margin:12px 0 20px;font-size:clamp(42px,6vw,68px);line-height:1.03;letter-spacing:-0.045em;font-weight:650}
.guide .hero-copy{max-width:780px;margin:0;color:var(--text-muted);font-size:19px;line-height:1.65}
.guide .primary{display:inline-flex;align-items:center;justify-content:center;padding:11px 17px;border-radius:8px;background:var(--accent);color:#fff;font-weight:650;text-decoration:none}
.guide .primary:hover{background:var(--accent-dim)}
.guide .guide-nav{position:sticky;top:calc(var(--header-height) + var(--guide-nav-gap));z-index:80;margin-top:42px;padding:11px 12px;display:flex;flex-wrap:wrap;gap:5px;border:1px solid var(--border-md);border-radius:11px;background:var(--surface)}
.guide .guide-nav::before{content:"";position:absolute;left:0;right:0;bottom:100%;height:calc(var(--header-height) + var(--guide-nav-gap));background:var(--bg)}
.guide .guide-nav a{padding:6px 9px;border-radius:6px;color:var(--text-muted);font-size:12px;font-weight:600;text-decoration:none}
.guide .guide-nav a:hover{background:var(--surface2);color:var(--text)}
.guide section{padding-top:96px;scroll-margin-top:calc(var(--header-height) + var(--guide-nav-height) + 32px)}
.guide h2{max-width:820px;margin:10px 0 16px;font-size:34px;line-height:1.12;letter-spacing:-0.025em;font-weight:650}
.guide .section-intro{max-width:790px;margin:0 0 34px;color:var(--text-muted);font-size:17px;line-height:1.65}
.guide .definition{display:grid;grid-template-columns:1.3fr 0.7fr;gap:16px}
.guide .definition-main,.guide .definition-side{padding:27px;border:1px solid var(--border-md);border-radius:13px;background:var(--surface)}
.guide .definition-main p{margin:0;font-size:20px;line-height:1.62}
.guide .definition-side{display:flex;flex-direction:column;justify-content:center;border-color:var(--accent);background:var(--accent-glow)}
.guide .definition-side strong{margin-bottom:7px}
.guide .definition-side span{color:var(--text-muted)}
.guide .workflow{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:18px;margin-top:36px;list-style:none;padding:0}
.guide .workflow-step{position:relative;min-height:196px;padding:21px 18px;border:1px solid var(--border-md);border-radius:12px;background:var(--surface)}
.guide .workflow-step:not(:last-child)::after{content:'\2192';position:absolute;right:-16px;top:50%;transform:translateY(-50%);z-index:2;color:var(--accent);font-size:20px;font-weight:800;line-height:1;pointer-events:none}
.guide .step-number{width:29px;height:29px;margin-bottom:17px;display:flex;align-items:center;justify-content:center;border:1px solid var(--accent);border-radius:50%;color:var(--accent);font-size:12px;font-weight:700}
.guide .workflow-step h3{margin:0 0 8px;font-size:16px}
.guide .workflow-step p{margin:0;color:var(--text-muted);font-size:14px;line-height:1.5}
.guide .workflow-step.human-step{border-color:var(--accent);background:var(--accent-glow)}
.guide .comparison{display:grid;grid-template-columns:minmax(0,1fr) 84px minmax(0,1fr);gap:24px;align-items:stretch;margin-top:34px}
.guide .comparison-card{padding:30px;border:1px solid var(--border-md);border-radius:14px;background:var(--surface)}
.guide .comparison-card.product-card{border-color:var(--accent)}
.guide .comparison-header{margin-bottom:26px}
.guide .comparison-header h3{margin:0 0 8px;font-size:23px;letter-spacing:-0.015em}
.guide .comparison-header p{margin:0;color:var(--text-muted);font-size:14px}
.guide .header-pill{display:inline-block;margin-top:14px;padding:6px 9px;border:1px solid var(--border-md);border-radius:6px;background:var(--surface2);color:var(--text-muted);font-size:11px;font-weight:650}
.guide .product-card .header-pill{border-color:var(--accent);background:var(--accent-glow);color:var(--accent)}
.guide .comparison-flow{display:flex;flex-direction:column;gap:9px}
.guide .comparison-step{min-height:65px;padding:14px 15px;display:flex;align-items:center;justify-content:space-between;gap:16px;border:1px solid var(--border-md);border-radius:9px;background:var(--surface2)}
.guide .comparison-step-content{display:flex;flex-direction:column;gap:4px}
.guide .comparison-step-title{font-size:15px;font-weight:550}
.guide .comparison-step-description{color:var(--text-muted);font-size:12px;line-height:1.4}
.guide .model-pill{flex-shrink:0;min-width:72px;padding:6px 9px;border:1px solid var(--border-md);border-radius:6px;background:var(--surface);color:var(--text-muted);text-align:center;font-size:11px;font-weight:650}
.guide .model-pill.same{min-width:88px}
.guide .model-pill.different{border-color:var(--accent);background:var(--accent-glow);color:var(--accent)}
.guide .model-pill.human{border-color:var(--accent);background:var(--accent-glow);color:var(--text)}
.guide .comparison-arrow{color:var(--text-muted);text-align:center;font-size:17px;line-height:1}
.guide .product-card .comparison-arrow{color:var(--accent)}
.guide .comparison-middle{display:flex;align-items:center;justify-content:center;color:var(--text-dim);text-align:center;font-size:11px;letter-spacing:0.08em;text-transform:uppercase}
.guide .comparison-explanation{margin-top:24px;padding-top:18px;border-top:1px solid var(--border);color:var(--text-muted);font-size:13px;line-height:1.55}
.guide .comparison-explanation strong{color:var(--text)}
.guide .model-map{margin-top:34px;overflow:hidden;border:1px solid var(--border-md);border-radius:14px;background:var(--surface)}
.guide .model-row{min-height:84px;padding:15px 20px;display:grid;grid-template-columns:180px minmax(0,1fr) 245px;align-items:center;gap:18px;border-bottom:1px solid var(--border)}
.guide .model-row:last-child{border-bottom:0}
.guide .role-name{font-weight:650}
.guide .role-description{padding-right:20px;color:var(--text-muted);font-size:14px}
.guide .role-pill{justify-self:start;padding:7px 10px;border:1px solid var(--accent);border-radius:7px;background:var(--accent-glow);color:var(--accent);font-size:12px}
.guide .principles,.guide .evidence-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:30px}
.guide .principle,.guide .evidence-card{padding:23px;border:1px solid var(--border-md);border-radius:12px;background:var(--surface)}
.guide .principle-number{width:33px;height:33px;display:flex;align-items:center;justify-content:center;margin-bottom:17px;border-radius:8px;background:var(--accent-glow);color:var(--accent);font-weight:800}
.guide .principle h3,.guide .evidence-card h3{margin:0 0 8px;font-size:16px}
.guide .principle p,.guide .evidence-card p{margin:0;color:var(--text-muted);font-size:14px;line-height:1.55}
.guide .challenge-visual{margin-top:34px;padding:32px;border:1px solid var(--border-md);border-radius:14px;background:var(--surface)}
.guide .challenge-line,.guide .authority{display:grid;grid-template-columns:minmax(0,1fr) 70px minmax(0,1fr) 70px minmax(0,1fr);align-items:center;text-align:center}
.guide .authority{margin-top:34px;padding:34px;border:1px solid var(--accent);border-radius:14px;background:var(--accent-glow)}
.guide .challenge-node{padding:20px 15px;border:1px solid var(--border-md);border-radius:10px;background:var(--surface2)}
.guide .challenge-node strong,.guide .authority-box strong{display:block;margin-bottom:5px}
.guide .challenge-node span,.guide .authority-box span{color:var(--text-muted);font-size:13px}
.guide .challenge-arrow,.guide .authority-arrow{color:var(--accent);font-size:22px}
.guide .challenge-note,.guide .authority-note{max-width:820px;margin:22px 0 0;color:var(--text-muted);font-size:14px;line-height:1.6}
.guide .auto-panel{display:grid;grid-template-columns:0.85fr 1.15fr;gap:20px;margin-top:32px}
.guide .auto-copy,.guide .auto-example{padding:26px;border:1px solid var(--border-md);border-radius:13px;background:var(--surface)}
.guide .auto-badge{display:inline-block;margin-bottom:13px;padding:6px 9px;border-radius:6px;background:var(--accent-glow);color:var(--accent);font-size:12px;font-weight:700}
.guide .auto-copy h3{margin:0 0 10px}
.guide .auto-copy p{color:var(--text-muted)}
.guide .auto-example-row{padding:11px 0;display:flex;justify-content:space-between;gap:18px;border-bottom:1px solid var(--border);font-size:14px}
.guide .auto-example-row:last-of-type{border-bottom:0}
.guide .auto-example-row span:last-child{color:var(--text-muted);text-align:right}
.guide .auto-note{margin:18px 0 0;color:var(--text-muted);font-size:12px;line-height:1.5}
.guide .authority-box{text-align:center}
.guide .authority-human{padding:18px;border:1px solid var(--accent);border-radius:10px;background:color-mix(in srgb, var(--bg) 70%, transparent)}
.guide .use-cases{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:30px}
.guide .use-case{padding:18px 20px;border:1px solid var(--border-md);border-radius:10px;background:var(--surface);font-size:15px}
.guide .use-case span{margin-right:8px;color:var(--accent)}
.guide .start-panel{margin-top:34px;padding:34px;display:flex;align-items:center;justify-content:space-between;gap:30px;border:1px solid var(--accent);border-radius:14px;background:var(--accent-glow)}
.guide .start-panel h3{margin:0 0 7px;font-size:23px}
.guide .start-panel p{margin:0;color:var(--text-muted)}
.guide footer{margin-top:100px;padding-top:24px;display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--border);color:var(--text-dim);font-size:12px}
[data-theme="dark"] .guide .product-card .header-pill,[data-theme="dark"] .guide .model-pill.different,[data-theme="dark"] .guide .role-pill,[data-theme="dark"] .guide .auto-badge,[data-theme="dark"] .guide .step-number,[data-theme="dark"] .guide .principle-number{color:#f3b499}
@media (max-width:1024px){
  .guide{padding-bottom:48px}
  .guide section{padding-top:56px}
  .guide .guide-nav{margin-top:28px}
  .guide .guide-nav a{min-height:36px;display:inline-flex;align-items:center}
  .guide .primary{min-height:44px}
  .guide .workflow{grid-template-columns:1fr;gap:32px}
  .guide .workflow-step{min-height:0}
  .guide .workflow-step:not(:last-child)::after{content:'\2193';left:50%;right:auto;top:auto;bottom:-26px;transform:translateX(-50%)}
  .guide .comparison,.guide .auto-panel,.guide .principles,.guide .evidence-grid{grid-template-columns:1fr}
  .guide .comparison-middle{padding:5px 0}
  .guide .model-row{grid-template-columns:1fr;gap:8px;padding:18px}
  .guide .role-description{padding-right:0}
  .guide .challenge-line,.guide .authority{grid-template-columns:1fr;gap:13px}
  .guide .challenge-arrow,.guide .authority-arrow{transform:rotate(90deg)}
}
@media (min-width:768px) and (max-width:1024px){
  .guide .principles,.guide .evidence-grid,.guide .use-cases{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .guide h1{font-size:34px}
  .guide h2{font-size:26px}
  .guide .hero-copy,.guide .section-intro{font-size:16px}
  .guide section{padding-top:40px}
  .guide .definition-main,.guide .definition-side,.guide .comparison-card,.guide .challenge-visual,.guide .start-panel{padding:18px}
  .guide .auto-example-row,.guide .comparison-step{flex-wrap:wrap;align-items:flex-start}
  .guide .auto-example-row span:last-child{text-align:left}
  .guide .workflow-step p,.guide .principle p,.guide .evidence-card p{font-size:15px}
}
@media (max-width:720px){
  .guide h1{font-size:34px}
  .guide h2{font-size:26px}
  .guide .definition,.guide .use-cases{grid-template-columns:1fr}
  .guide .comparison-card{padding:22px}
  .guide .comparison-step{align-items:flex-start}
  .guide .model-pill{min-width:auto}
  .guide .start-panel{align-items:flex-start;flex-direction:column}
  .guide footer{flex-direction:column;gap:7px}
}
@media (prefers-reduced-motion:reduce){
  .guide .guide-nav{scroll-behavior:auto}
}