:root {
  --brand: #057f82;
  --brand-2: #55dbc8;
  --brand-dark: #062b31;
  --brand-deep: #071015;
  --brand-soft: #e8fbfa;
  --ink: #17141f;
  --ink-soft: #3d3947;
  --muted: #746f7d;
  --bg: #f7fbfb;
  --white: #fff;
  --line: rgba(23,20,31,.1);
  --shadow: 0 24px 74px rgba(23,20,31,.1);
  --shadow-dark: 0 34px 100px rgba(7,16,21,.28);
  --radius: 28px;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "DM Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }
.page { min-height: 100vh; overflow: hidden; }
.container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}
.nav { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.brand { display: inline-flex; align-items: center; }
.brand-logo { width: 158px; max-height: 48px; object-fit: contain; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a { padding: 11px 13px; border-radius: 12px; color: var(--ink-soft); font-size: 14px; font-weight: 800; }
.nav-links a:hover { background: var(--white); color: var(--ink); }
.btn {
  min-height: 50px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 15px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 900;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { color: #fff; background: var(--brand); box-shadow: 0 16px 38px color-mix(in srgb, var(--brand) 35%, transparent); }
.btn-primary:hover { background: color-mix(in srgb, var(--brand) 84%, #000); }
.btn-light { color: var(--ink); background: #fff; box-shadow: 0 16px 38px rgba(0,0,0,.16); }
.btn-outline { color: #fff; border-color: rgba(255,255,255,.26); background: rgba(255,255,255,.06); }

.hero { position: relative; padding: 88px 0 72px; color: #fff; overflow: hidden; background: radial-gradient(circle at 80% 10%, color-mix(in srgb, var(--brand) 70%, transparent), transparent 30%), radial-gradient(circle at 8% 100%, color-mix(in srgb, var(--brand-2) 26%, transparent), transparent 34%), linear-gradient(135deg, var(--brand-dark), var(--brand-deep)); }
.hero::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px); background-size: 54px 54px; mask-image: linear-gradient(to bottom, #000, transparent 96%); }
.hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0,1.16fr) minmax(340px,.84fr); gap: 58px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; padding: 8px 13px; border-radius: 999px; border: 1px solid rgba(255,255,255,.2); background: rgba(255,255,255,.09); color: #fff; font-size: 12px; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--brand-2); box-shadow: 0 0 0 5px color-mix(in srgb, var(--brand-2) 18%, transparent); }
.hero h1 { max-width: 860px; margin: 22px 0 0; font-size: clamp(48px, 6.5vw, 86px); line-height: .92; letter-spacing: -.062em; font-weight: 1000; }
.hero h1 span { color: var(--brand-2); }
.hero-lead { max-width: 760px; margin: 26px 0 0; color: rgba(255,255,255,.78); font-size: clamp(18px,2vw,22px); line-height: 1.55; font-weight: 560; }
.hero-lead strong { color: #fff; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.proof-line { display: flex; flex-wrap: wrap; gap: 18px 28px; margin-top: 34px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.14); color: rgba(255,255,255,.7); font-size: 13px; font-weight: 750; }
.proof-line span::before { content: "✓"; margin-right: 8px; color: var(--brand-2); font-weight: 1000; }

.answer-card { position: relative; min-height: 470px; padding: 30px; border: 1px solid rgba(255,255,255,.16); border-radius: 32px; background: rgba(255,255,255,.075); backdrop-filter: blur(18px); box-shadow: var(--shadow-dark); overflow: hidden; }
.answer-card::after { content: ""; position: absolute; width: 250px; height: 250px; right: -90px; bottom: -120px; border-radius: 50%; background: radial-gradient(circle,var(--brand-2),transparent 68%); opacity: .42; }
.answer-label { color: var(--brand-2); font-size: 12px; font-weight: 950; letter-spacing: .12em; text-transform: uppercase; }
.answer-card h2 { margin: 18px 0 0; font-size: 34px; line-height: 1.03; letter-spacing: -.045em; }
.answer-card p { margin: 18px 0 0; color: rgba(255,255,255,.7); font-size: 16px; line-height: 1.55; }
.answer-list { margin: 24px 0 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.answer-list li { position: relative; padding: 13px 14px 13px 43px; border: 1px solid rgba(255,255,255,.12); border-radius: 14px; background: rgba(0,0,0,.12); color: rgba(255,255,255,.88); font-weight: 760; font-size: 14px; }
.answer-list li::before { content: ""; position: absolute; left: 15px; top: 50%; width: 13px; height: 13px; border-radius: 5px; background: var(--brand-2); transform: translateY(-50%); box-shadow: 0 0 0 5px color-mix(in srgb,var(--brand-2) 14%,transparent); }

.quick-nav { background: #fff; border-bottom: 1px solid var(--line); }
.quick-nav-row { display: flex; align-items: center; gap: 10px; padding: 16px 0; overflow-x: auto; scrollbar-width: none; }
.quick-nav-row::-webkit-scrollbar { display: none; }
.quick-nav a { flex: 0 0 auto; padding: 9px 12px; border-radius: 999px; background: var(--brand-soft); color: var(--brand); font-size: 12px; font-weight: 900; }

.article-layout { display: grid; grid-template-columns: minmax(0,800px) 300px; gap: 36px; align-items: start; padding: 74px 0 90px; }
.article { min-width: 0; }
.article > section { scroll-margin-top: 110px; margin-top: 66px; }
.article > section:first-child { margin-top: 0; }
.kicker { color: var(--brand); font-size: 12px; font-weight: 950; text-transform: uppercase; letter-spacing: .12em; }
.article h2 { margin: 13px 0 0; font-size: clamp(36px,4.5vw,58px); line-height: .98; letter-spacing: -.05em; font-weight: 1000; }
.article h3 { margin: 32px 0 0; font-size: 27px; line-height: 1.1; letter-spacing: -.03em; }
.article p { margin: 18px 0 0; color: var(--ink-soft); font-size: 19px; line-height: 1.7; font-weight: 540; }
.article p.lead { color: var(--ink); font-size: 24px; line-height: 1.52; font-weight: 720; letter-spacing: -.022em; }
.article strong { color: var(--ink); font-weight: 900; }
.article ul:not(.check-list), .article ol { margin: 22px 0 0; padding-left: 26px; color: var(--ink-soft); font-size: 18px; line-height: 1.65; }
.article li + li { margin-top: 9px; }

.disclosure { margin: 28px 0 0; padding: 20px 22px; border-left: 4px solid var(--brand); border-radius: 0 18px 18px 0; background: var(--brand-soft); color: var(--ink-soft); line-height: 1.55; font-size: 15px; }
.criteria-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 15px; margin-top: 30px; }
.criterion { min-height: 210px; padding: 25px; border: 1px solid var(--line); border-radius: 23px; background: #fff; box-shadow: 0 12px 36px rgba(23,20,31,.055); }
.criterion .num { color: var(--brand); font-size: 12px; font-weight: 950; letter-spacing: .12em; }
.criterion h3 { margin: 32px 0 0; font-size: 24px; }
.criterion p { margin-top: 10px; color: var(--muted); font-size: 15.5px; line-height: 1.55; }

.comparison-wrap { margin-top: 30px; overflow-x: auto; border: 1px solid var(--line); border-radius: 24px; background: #fff; box-shadow: var(--shadow); }
.comparison { width: 100%; min-width: 690px; border-collapse: collapse; }
.comparison th, .comparison td { padding: 18px 20px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); border-right: 1px solid var(--line); }
.comparison th:last-child, .comparison td:last-child { border-right: 0; }
.comparison tr:last-child td { border-bottom: 0; }
.comparison thead th { background: var(--brand-dark); color: #fff; font-size: 14px; }
.comparison tbody th { width: 25%; color: var(--ink); background: color-mix(in srgb,var(--brand-soft) 55%,#fff); }
.comparison td { color: var(--ink-soft); line-height: 1.45; }
.yes { color: var(--brand); font-weight: 900; }

.evidence { margin-top: 30px; padding: 34px; border-radius: 28px; color: #fff; background: radial-gradient(circle at 100% 0,color-mix(in srgb,var(--brand) 55%,transparent),transparent 38%),linear-gradient(135deg,var(--brand-dark),var(--brand-deep)); box-shadow: var(--shadow-dark); }
.evidence h3 { margin: 0; color: #fff; font-size: 34px; }
.evidence p { color: rgba(255,255,255,.7); font-size: 17px; }
.metric-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin-top: 24px; }
.metric { padding: 18px; border: 1px solid rgba(255,255,255,.14); border-radius: 18px; background: rgba(255,255,255,.07); }
.metric strong { display: block; color: var(--brand-2); font-size: 30px; letter-spacing: -.05em; }
.metric span { display: block; margin-top: 5px; color: rgba(255,255,255,.7); font-size: 12.5px; line-height: 1.4; }

.check-list { margin: 26px 0 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.check-list li { position: relative; padding: 18px 20px 18px 52px; border: 1px solid var(--line); border-radius: 18px; background: #fff; color: var(--ink-soft); font-size: 16px; line-height: 1.5; }
.check-list li::before { content: "✓"; position: absolute; left: 19px; top: 18px; width: 23px; height: 23px; display: grid; place-items: center; border-radius: 8px; color: #fff; background: var(--brand); font-weight: 1000; }

.ecosystem-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 15px; margin-top: 28px; }
.ecosystem-card { padding: 23px; border-radius: 22px; border: 1px solid var(--line); background: #fff; transition: transform .2s ease, box-shadow .2s ease; }
.ecosystem-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.ecosystem-card small { color: var(--brand); font-weight: 950; text-transform: uppercase; letter-spacing: .1em; }
.ecosystem-card h3 { margin: 18px 0 0; font-size: 23px; }
.ecosystem-card p { margin-top: 10px; color: var(--muted); font-size: 14.5px; line-height: 1.5; }
.ecosystem-card span { display: inline-block; margin-top: 18px; color: var(--brand); font-weight: 900; font-size: 14px; }

.faq { margin-top: 32px; display: grid; gap: 12px; }
.faq details { border: 1px solid var(--line); border-radius: 18px; background: #fff; overflow: hidden; }
.faq summary { cursor: pointer; padding: 20px 52px 20px 21px; font-size: 17px; font-weight: 850; position: relative; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 20px; top: 15px; color: var(--brand); font-size: 28px; }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 0; padding: 0 21px 21px; color: var(--muted); font-size: 16px; line-height: 1.58; }

.sidebar { position: sticky; top: 98px; display: grid; gap: 16px; }
.side-card { padding: 24px; border: 1px solid var(--line); border-radius: 23px; background: #fff; box-shadow: var(--shadow); }
.side-card.dark { color: #fff; background: radial-gradient(circle at 90% 10%,color-mix(in srgb,var(--brand) 55%,transparent),transparent 38%),linear-gradient(135deg,var(--brand-dark),var(--brand-deep)); }
.side-card h3 { margin: 0; font-size: 25px; line-height: 1.05; letter-spacing: -.035em; }
.side-card p { margin: 12px 0 0; color: var(--muted); font-size: 14.5px; line-height: 1.55; }
.side-card.dark p { color: rgba(255,255,255,.7); }
.side-card .btn { width: 100%; margin-top: 17px; }
.toc { margin: 15px 0 0; padding: 0; list-style: none; display: grid; gap: 7px; }
.toc a { display: block; padding: 9px 10px; border-radius: 11px; color: var(--ink-soft); background: var(--bg); font-size: 13px; font-weight: 800; }

.author { margin-top: 58px; padding: 26px; display: grid; grid-template-columns: 58px 1fr; gap: 18px; align-items: start; border: 1px solid var(--line); border-radius: 24px; background: #fff; }
.author-mark { width: 58px; height: 58px; display: grid; place-items: center; border-radius: 18px; color: #fff; background: linear-gradient(135deg,var(--brand),var(--brand-2)); font-weight: 1000; }
.author h3 { margin: 0; font-size: 21px; }
.author p { margin: 8px 0 0; color: var(--muted); font-size: 14.5px; line-height: 1.5; }

.final-cta { padding: 0 0 92px; }
.final-card { position: relative; overflow: hidden; padding: 70px; border-radius: 34px; color: #fff; text-align: center; background: radial-gradient(circle at 15% 10%,color-mix(in srgb,var(--brand-2) 30%,transparent),transparent 30%),radial-gradient(circle at 90% 90%,color-mix(in srgb,var(--brand) 55%,transparent),transparent 30%),linear-gradient(135deg,var(--brand-dark),var(--brand-deep)); box-shadow: var(--shadow-dark); }
.final-card h2 { max-width: 900px; margin: 0 auto; font-size: clamp(40px,5vw,70px); line-height: .96; letter-spacing: -.055em; }
.final-card p { max-width: 710px; margin: 20px auto 0; color: rgba(255,255,255,.7); font-size: 18px; line-height: 1.55; }
.final-actions { margin-top: 28px; display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; }

.footer { padding: 58px 0 34px; color: #fff; background: var(--brand-deep); }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3,1fr); gap: 36px; }
.footer .brand-logo { filter: brightness(0) invert(1); }
.footer p { color: rgba(255,255,255,.58); line-height: 1.55; font-size: 14px; }
.footer h4 { margin: 0 0 14px; font-size: 14px; }
.footer a { display: block; margin: 9px 0; color: rgba(255,255,255,.66); font-size: 14px; }
.footer a:hover { color: #fff; }
.footer-bottom { margin-top: 38px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12); display: flex; justify-content: space-between; gap: 20px; color: rgba(255,255,255,.5); font-size: 12px; }
.mobile-sticky { display: none; }

@media (max-width: 980px) {
  .nav-links { display: none; }
  .hero-grid { grid-template-columns: 1fr; }
  .answer-card { min-height: auto; }
  .article-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; grid-template-columns: 1fr 1fr; }
  .side-card:first-child { display: none; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-grid > :last-child { grid-column: 2 / 4; }
}

@media (max-width: 680px) {
  .container { width: min(100% - 28px, var(--container)); }
  .nav { min-height: 66px; }
  .brand-logo { width: 136px; }
  .nav > .btn { min-height: 42px; padding: 0 14px; font-size: 12px; }
  .hero { padding: 58px 0 52px; }
  .hero-grid { gap: 34px; }
  .hero h1 { font-size: clamp(42px,13vw,62px); }
  .hero-lead { font-size: 18px; }
  .hero-actions .btn { width: 100%; }
  .proof-line { display: grid; gap: 10px; }
  .answer-card { padding: 24px; border-radius: 25px; }
  .answer-card h2 { font-size: 29px; }
  .article-layout { padding: 54px 0 74px; }
  .article > section { margin-top: 54px; }
  .article h2 { font-size: 38px; }
  .article h3 { font-size: 24px; }
  .article p, .article ul:not(.check-list), .article ol { font-size: 17px; }
  .article p.lead { font-size: 21px; }
  .criteria-grid, .metric-grid, .ecosystem-grid { grid-template-columns: 1fr; }
  .criterion { min-height: auto; }
  .criterion h3 { margin-top: 22px; }
  .evidence { padding: 25px; }
  .sidebar { grid-template-columns: 1fr; }
  .side-card { padding: 22px; }
  .author { grid-template-columns: 1fr; }
  .final-cta { padding-bottom: 70px; }
  .final-card { padding: 46px 23px; border-radius: 26px; }
  .final-actions .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px 18px; }
  .footer-grid > :first-child, .footer-grid > :last-child { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; }
  .mobile-sticky { position: fixed; left: 0; right: 0; bottom: 0; z-index: 120; display: block; padding: 10px 14px calc(10px + env(safe-area-inset-bottom)); background: rgba(255,255,255,.92); backdrop-filter: blur(16px); border-top: 1px solid var(--line); }
  .mobile-sticky .btn { width: 100%; min-height: 48px; }
  body { padding-bottom: 72px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}