:root{
    --bg:#FCF9EE; --bg-muted:#F4EFE1; --card:#fff;
    --text:#17224F; --text-soft:#5C6680;
    --primary:#2E6FD5; --primary-hover:#2559AE;
    --border:#E6E1CF; --mint:#BFE9E2; --lav:#D8D3FC; --peach:#FFC5A7;
    --grad:linear-gradient(91deg,#387DD5 0%,#3FB5A6 100%);
  }
  *{margin:0;padding:0;box-sizing:border-box}
  html{scroll-padding-top:80px}
  body{font-family:"Golos Text",system-ui,sans-serif;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}
  .container{max-width:1140px;margin:0 auto;padding:0 32px}
  section{padding:72px 0}
  .btn{display:inline-flex;align-items:center;gap:8px;border-radius:999px;font-weight:600;font-size:15.5px;padding:13px 24px;border:none;cursor:pointer;text-decoration:none}
  .btn-primary{background:var(--primary);color:#fff}
  .btn-primary:hover{background:var(--primary-hover)}
  .btn-ghost{background:transparent;color:var(--text);border:1px solid var(--text)}
  .btn-sm{padding:9px 18px;font-size:14px;flex-shrink:0}
  .btn:focus-visible,.logo:focus-visible,.nav-links a:focus-visible,.crumbs a:focus-visible,.rel:focus-visible,summary:focus-visible{outline:3px solid rgba(46,111,213,.35);outline-offset:3px}

  nav{border-bottom:1px solid var(--border);background:rgba(252,249,238,.92);backdrop-filter:blur(8px);position:sticky;top:0;z-index:50}
  .nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
  .logo{font-weight:700;font-size:19px;letter-spacing:-.02em;display:flex;align-items:center;gap:9px;color:var(--text);text-decoration:none}
  .logo-dot{width:24px;height:24px;border-radius:7px;background:var(--grad);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:12px}
  .nav-links{display:flex;gap:22px;font-size:14.5px;font-weight:500;flex-wrap:wrap}
  .nav-links a{color:var(--text-soft);text-decoration:none}
  .nav-links a:hover,.nav-links a[aria-current]{color:var(--primary)}

  .crumbs{font-size:13.5px;color:var(--text-soft);padding-top:24px}
  .crumbs a{color:var(--text-soft);text-decoration:none}

  /* HERO — левый, с формулой цикла */
  .hero{padding:40px 0 72px;position:relative;overflow:hidden;border-bottom:1px solid var(--border)}
  .hero .blob{position:absolute;bottom:-260px;right:-160px;width:640px;height:520px;border-radius:50%;filter:blur(90px);opacity:.45;pointer-events:none;background:linear-gradient(135deg,#9CC8F5,#D8D3FC)}
  .hero-grid{position:relative;z-index:1;max-width:760px}
  .badge{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--border);color:var(--primary);font-size:13px;font-weight:600;padding:6px 14px;border-radius:999px;margin-bottom:22px}
  h1{font-size:46px;line-height:1.12;letter-spacing:-.02em;font-weight:600;margin-bottom:18px}
  .answer{font-size:18.5px;line-height:1.6;margin-bottom:12px}
  .answer b{background:none;font-weight:600;text-decoration-line:underline;text-decoration-color:var(--primary);text-decoration-thickness:1px;text-underline-offset:.2em;text-decoration-skip-ink:auto}
  .hero-sub{font-size:15.5px;color:var(--text-soft);line-height:1.6;margin-bottom:26px}
  .hero-ctas{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:14px}
  .hero-note{font-size:13.5px;color:#5C6680}

  .kicker{font-size:12.5px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--primary);margin-bottom:12px}
  h2{font-size:32px;letter-spacing:-.02em;font-weight:600;margin-bottom:12px}
  .sec-sub{color:var(--text-soft);font-size:16.5px;max-width:640px;line-height:1.6}

  /* PIPELINE — вертикальная лестница */
  .pipeline{margin-top:48px;position:relative}
  .pipe-step{position:relative;display:grid;grid-template-columns:64px 1fr;gap:24px;padding-bottom:36px}
  .pipe-step::before{content:"";position:absolute;left:31px;top:56px;bottom:0;width:2px;background:var(--border)}
  .pipe-step:last-child::before{display:none}
  .pipe-n{width:64px;height:64px;border-radius:18px;background:var(--card);border:1px solid var(--border);box-shadow:0 8px 20px rgba(23,34,79,.07);display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;color:var(--primary)}
  .pipe-body{padding-top:6px}
  .pipe-body h3{font-size:21px;font-weight:600;margin-bottom:8px}
  .pipe-body p{font-size:15.5px;line-height:1.65;color:var(--text-soft);max-width:640px}
  .pipe-body .tagline{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
  .pill{font-size:12.5px;font-weight:600;color:var(--primary);background:#E3EEFC;border-radius:999px;padding:5px 12px}
  .pill.alt{color:#6B5CC9;background:#EDEBFC}
  .pill.alt2{color:#A05A2C;background:#FFE8D9}

  .lim-band{background:linear-gradient(120deg,#E3EEFC 0%,#E0F5EF 55%,#EDEBFC 100%);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
  .lim-band .split{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:stretch}
  .mini-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:26px}
  .mini-card h3{font-size:18px;font-weight:600;margin-bottom:10px}
  .mini-card p{font-size:14.5px;line-height:1.65;color:var(--text-soft)}
  .lim-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:16px}
  .lim{background:var(--bg);border:1px solid var(--border);border-radius:12px;padding:14px;text-align:center}
  .lim b{display:block;font-size:26px;font-weight:700;letter-spacing:-.02em}
  .lim span{font-size:12.5px;color:var(--text-soft)}

  .base-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:40px}
  .base-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:24px}
  .base-card h3{font-size:16.5px;font-weight:600;margin-bottom:7px}
  .base-card p{font-size:14px;line-height:1.6;color:var(--text-soft)}

  .rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:36px}
  .rel{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:20px;text-decoration:none;color:var(--text);display:block}
  .rel:hover{border-color:rgba(46,111,213,.45)}
  .rel b{display:block;font-size:15.5px;margin-bottom:6px}
  .rel span{font-size:13.5px;line-height:1.5;color:var(--text-soft)}

  details{border-bottom:1px solid var(--border);padding:20px 0}
  summary{font-size:16.5px;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px}
  summary::-webkit-details-marker{display:none}
  summary::after{content:"+";font-size:22px;color:var(--primary)}
  details[open] summary::after{content:"–"}
  details p{font-size:15px;line-height:1.65;color:var(--text-soft);margin-top:10px;max-width:680px}

  .cta-band{text-align:center;background:linear-gradient(120deg,#E3EEFC 0%,#E0F5EF 55%,#EDEBFC 100%);border-top:1px solid var(--border)}
  .cta-band h2{margin-bottom:14px}
  .cta-band p{color:var(--text-soft);margin-bottom:26px}
  footer{border-top:1px solid var(--border);padding:26px 0;font-size:13.5px;color:var(--text-soft)}
  .foot-inner{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
  .foot-inner a{color:var(--text-soft);text-decoration:none}
  .foot-inner a:hover{color:var(--primary)}

  @media (max-width:960px){
    .nav-links{gap:16px;font-size:14px}
    h1{font-size:38px}
  }
  @media (max-width:760px){
    .base-grid{grid-template-columns:1fr 1fr}
    .rel-grid{grid-template-columns:1fr 1fr}
    .lim-band .split{grid-template-columns:1fr}
  }
  @media (max-width:640px){
    .container{padding:0 20px}
    .nav-links{display:none}
    h1{font-size:31px}
    h2{font-size:25px}
    .base-grid{grid-template-columns:1fr}
    .rel-grid{grid-template-columns:1fr}
    .pipe-step{grid-template-columns:48px 1fr;gap:14px}
    .pipe-n{width:48px;height:48px;border-radius:14px;font-size:14px}
    .pipe-step::before{left:23px}
    section{padding:56px 0}
  }