:root {
  color-scheme: light;
  --ink: #11120f;
  --ink-soft: #4b4e47;
  --canvas: #f4f4ef;
  --surface: #fff;
  --line: #cfd2ca;
  --teal: #296b57;
  --teal-brand: #74ef70;
  --teal-pale: #e3f8d8;
  --acid: #dfff33;
  --blue: #1606bf;
  --error: #a72b2b;
  --shadow: 0 18px 50px rgba(17,25,22,.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--canvas); font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif; font-size: 16px; line-height: 1.75; }
a { color: inherit; }
p { margin: 0; }
.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid rgba(17,18,15,.22); background: rgba(244,244,239,.94); backdrop-filter: blur(12px); }
.header-inner { max-width: 1160px; height: 64px; margin: auto; padding: 0 20px; display: flex; align-items: center; justify-content: space-between; }
.header-brand { display: flex; align-items: center; gap: 18px; }
.brand { font-size: 24px; font-weight: 900; line-height: 1; letter-spacing: -.06em; text-decoration: none; }
.experiment-tag { padding-left: 18px; border-left: 1px solid var(--line); color: var(--ink-soft); font-size: 11px; font-weight: 700; letter-spacing: .08em; }
.button { min-height: 52px; padding: 13px 24px; display: inline-flex; align-items: center; justify-content: space-between; gap: 28px; border: 1px solid transparent; border-radius: 2px; font: inherit; font-weight: 800; text-decoration: none; cursor: pointer; transition: transform .18s ease, background .18s ease, border-color .18s ease; }
.button:hover { transform: translateY(-1px); }
.button.primary { color: white; background: var(--ink); }
.button.primary:hover { background: #292b26; }
.button:disabled { opacity: .6; cursor: wait; transform: none; }
.header-cta { min-height: 40px; padding: 7px 16px; border-color: var(--ink); font-size: 13px; }
main { overflow: hidden; }
section { max-width: 1120px; margin: 112px auto; padding: 0 20px; }
.hero { margin-top: 0; min-height: min(780px, calc(100vh - 64px)); padding-top: 76px; padding-bottom: 76px; display: grid; grid-template-columns: 1.08fr .92fr; gap: 64px; align-items: center; }
.hero-copy, .evidence-board { min-width: 0; }
.status { display: flex; align-items: center; gap: 9px; color: var(--ink-soft); font-size: 12px; font-weight: 800; letter-spacing: .08em; }
.status span { width: 9px; height: 9px; border-radius: 50%; background: var(--teal-brand); box-shadow: 0 0 0 4px rgba(116,239,112,.18); }
h1 { margin: 24px 0 30px; font-size: clamp(68px, 6.25vw, 88px); font-weight: 900; line-height: 1.01; letter-spacing: -.075em; }
h2 { margin: 10px 0 30px; font-size: clamp(34px, 4vw, 52px); font-weight: 850; line-height: 1.12; letter-spacing: -.055em; }
h3 { margin: 0 0 18px; font-size: 18px; }
.lead { max-width: 520px; color: var(--ink-soft); font-size: 18px; line-height: 1.8; }
.lead strong { color: var(--ink); font-weight: 700; }
.hero-actions { margin-top: 34px; display: flex; align-items: center; gap: 24px; }
.text-link { color: var(--ink-soft); font-size: 14px; font-weight: 700; text-decoration: none; }
.text-link span { margin-left: 5px; color: var(--teal); }
.micro { margin-top: 12px; color: #65716d; font-size: 12px; }
.evidence-board { color: #f6faf8; padding: 28px; border: 1px solid #373a34; border-radius: 2px; background: #191b17; box-shadow: 18px 18px 0 rgba(17,18,15,.09); }
.board-head { display: flex; justify-content: space-between; align-items: flex-start; padding-bottom: 20px; border-bottom: 1px solid #34403c; }
.board-head > div { display: grid; gap: 5px; }
.board-kicker { color: #8fa099; font-size: 9px; font-weight: 800; letter-spacing: .16em; }
.board-head strong { font-size: 15px; }
.live-label { display: flex; align-items: center; gap: 7px; color: var(--acid); font-size: 10px; font-weight: 800; }
.live-label i { width: 7px; height: 7px; border-radius: 50%; background: var(--acid); }
.metric-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 1px; margin: 22px 0; background: #34403c; }
.metric-grid > div { padding: 18px 14px; display: grid; gap: 5px; background: #191b17; }
.metric-grid span { color: #8fa099; font-size: 9px; font-weight: 800; letter-spacing: .1em; }
.metric-grid strong { color: var(--acid); font-size: 38px; font-weight: 800; line-height: 1; letter-spacing: -.05em; }
.metric-grid small { color: #b8c4bf; font-size: 10px; }
.board-timeline { margin: 0; padding: 0; list-style: none; }
.board-timeline li { min-height: 58px; display: grid; grid-template-columns: 32px 1fr auto; align-items: center; gap: 10px; border-top: 1px solid #353832; color: #7e837a; font-size: 12px; position: relative; }
.board-timeline li::after { content: ""; height: 2px; position: absolute; right: 52px; bottom: 8px; left: 42px; background: #3b3e38; }
.board-timeline li.done::after { background: var(--teal-brand); }
.board-timeline li.active::after { background: linear-gradient(90deg, var(--acid) 0 58%, #3b3e38 58%); }
.board-timeline li > span { width: 25px; height: 25px; display: grid; place-items: center; border: 1px solid #4a5953; border-radius: 50%; font-size: 9px; }
.board-timeline li p { line-height: 1.35; }
.board-timeline li b { font-size: 8px; letter-spacing: .12em; }
.board-timeline li.done { color: #aebbb6; }
.board-timeline li.done > span { color: var(--ink); border-color: var(--teal-brand); background: var(--teal-brand); }
.board-timeline li.active { color: white; }
.board-timeline li.active > span { color: var(--ink); border-color: var(--acid); background: var(--acid); }
.board-timeline li.active b { color: var(--acid); }
.sample-note { margin-top: 16px; color: #71817a; font-size: 9px; line-height: 1.55; }
.signal-strip { max-width: none; margin: 0; padding: 0 max(20px, calc((100vw - 1120px)/2)); display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); background: var(--acid); }
.signal-strip > div { min-height: 150px; padding: 30px 32px; display: grid; grid-template-columns: 20px 48px 1fr; align-items: center; gap: 18px; border-right: 1px solid rgba(17,18,15,.4); }
.signal-strip > div:first-child { border-left: 1px solid rgba(17,18,15,.4); }
.signal-strip span { color: var(--ink); font-size: 11px; font-weight: 900; }
.signal-strip img { width: 48px; height: 48px; }
.signal-strip strong { font-size: 17px; line-height: 1.55; }
.section-label { margin: 0 0 10px; color: var(--teal); font-size: 11px; font-weight: 900; letter-spacing: .18em; }
.section-intro { max-width: 740px; }
.editorial-section { display: grid; gap: 48px; }
.difference-visual { width: min(100%, 880px); margin: -8px auto 0; padding: 20px 20px 12px; border: 1px solid var(--line); background: var(--surface); box-shadow: var(--shadow); }
.difference-visual-wide { width: 100%; height: auto; display: block; }
.difference-visual figcaption { margin-top: 14px; padding-top: 11px; display: flex; justify-content: space-between; align-items: center; color: var(--ink-soft); border-top: 1px solid var(--line); font-size: 9px; font-weight: 850; letter-spacing: .16em; }
.difference-visual figcaption b { color: var(--teal); font-size: 15px; }
.comparison-table { border-top: 2px solid var(--ink); }
.comparison-table > div { min-height: 78px; display: grid; grid-template-columns: 180px 1fr 1fr; border-bottom: 1px solid var(--line); }
.comparison-table span, .comparison-table p, .comparison-table strong { margin: 0; padding: 20px 24px; display: flex; align-items: center; }
.comparison-table span { color: var(--ink-soft); font-size: 12px; font-weight: 750; }
.comparison-table p, .comparison-table strong { border-left: 1px solid var(--line); }
.comparison-head { min-height: 56px !important; }
.comparison-head strong { font-size: 14px; }
.comparison-table .highlight { background: rgba(223,255,51,.36); }
.audience-band { max-width: 1120px; padding: 0 20px; display: grid; grid-template-columns: .85fr 1.15fr; gap: 90px; color: var(--ink); background: transparent; }
.audience-band .section-label { color: var(--teal); }
.audience-band .section-intro > p:last-child { color: var(--ink-soft); }
.audience-list { margin: 0; padding: 0; list-style: none; }
.audience-list li { padding: 25px 0; display: grid; grid-template-columns: 92px 1fr; gap: 22px; border-top: 1px solid var(--ink); }
.audience-list li:last-child { border-bottom: 1px solid var(--ink); }
.audience-list li > span { color: transparent; font-size: 54px; font-weight: 900; line-height: 1; letter-spacing: -.08em; -webkit-text-stroke: 1px var(--ink); }
.audience-list strong { font-size: 18px; }
.audience-list p { margin-top: 5px; color: var(--ink-soft); font-size: 13px; }
.routes { scroll-margin-top: 84px; }
.route-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.route-grid article { min-height: 310px; padding: 34px; display: flex; flex-direction: column; border: 1px solid var(--ink); background: var(--surface); box-shadow: 8px 8px 0 rgba(17,18,15,.08); }
.route-grid article > span { color: var(--teal); font-size: 10px; font-weight: 850; letter-spacing: .14em; }
.route-grid article > img { width: 54px; height: 54px; margin: 26px 0 18px; padding: 9px; border: 1px solid var(--ink); background: var(--acid); }
.route-grid h3 { margin-bottom: 10px; font-size: 22px; }
.route-grid p { color: var(--ink-soft); font-size: 14px; }
.route-grid strong { margin-top: auto; padding-top: 22px; color: var(--teal); font-size: 13px; }
.fit-note { margin-top: 20px; padding: 24px 28px; display: grid; grid-template-columns: .34fr .66fr; gap: 28px; border: 1px solid var(--line); background: var(--teal-pale); }
.fit-note strong { font-size: 15px; }
.fit-note p { color: var(--ink-soft); font-size: 13px; }
.split-heading { max-width: none; display: grid; grid-template-columns: 1fr 1fr; gap: 100px; align-items: end; }
.split-heading > p { padding-bottom: 32px; color: var(--ink-soft); }
.steps { margin: 0; padding: 0; border-top: 2px solid var(--ink); list-style: none; }
.steps li { min-height: 132px; padding: 25px 0; display: grid; grid-template-columns: 140px 54px 1fr 110px; gap: 22px; align-items: center; border-bottom: 1px solid var(--line); }
.steps li > span { color: var(--ink); font-size: 30px; font-weight: 900; line-height: 1; letter-spacing: -.06em; }
.step-icon { width: 54px; height: 54px; padding: 9px; border: 1px solid var(--ink); background: var(--acid); }
.steps strong { font-size: 20px; }
.steps p { margin-top: 5px; color: var(--ink-soft); font-size: 14px; }
.steps li > b { color: #95a19c; font-size: 10px; letter-spacing: .14em; text-align: right; }
.customer-role { margin-top: 26px; padding: 26px 30px; display: grid; grid-template-columns: .34fr .66fr; gap: 28px; border: 1px solid var(--ink); background: var(--surface); }
.customer-role > strong { font-size: 17px; }
.customer-role ul { margin: 0; padding-left: 20px; display: grid; grid-template-columns: 1fr 1fr; gap: 8px 28px; color: var(--ink-soft); font-size: 13px; }
.offer-band { max-width: none; padding: 106px max(20px, calc((100vw - 1120px)/2)); display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; color: #f5f6ef; background: var(--ink); }
.offer-band .section-label { color: var(--acid); }
.experiment-id { margin: 40px 0 18px; padding: 12px 0; display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid #3d4039; border-bottom: 1px solid #3d4039; color: #aeb2a8; font-size: 9px; letter-spacing: .14em; }
.experiment-id b { color: var(--acid); }
.price { margin-top: 44px; display: grid; align-items: start; }
.price > span { color: #aeb2a8; font-size: 12px; font-weight: 700; }
.price strong { margin: 8px 0 12px; font-size: 70px; font-weight: 900; line-height: 1; letter-spacing: -.07em; }
.price small { margin-right: 8px; font-size: 28px; }
.price em { width: max-content; padding: 3px 7px; color: var(--ink); background: var(--acid); font-size: 10px; font-style: normal; font-weight: 800; }
.offer-content { padding: 44px; color: #f5f6ef; background: #1c1e1a; border: 1px solid #3d4039; border-radius: 2px; }
.scope-list { margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 0; list-style: none; border-top: 1px solid #3d4039; }
.scope-list li { min-height: 52px; padding: 12px 6px 12px 28px; display: flex; align-items: center; border-bottom: 1px solid #3d4039; position: relative; font-size: 14px; }
.scope-list li:nth-child(odd) { padding-right: 20px; }
.scope-list li::before { content: "✓"; position: absolute; left: 3px; color: var(--acid); font-weight: 900; }
.excluded-title { margin-top: 32px; }
.excluded { color: #aeb2a8; font-size: 13px; }
.payment-note { margin-top: 26px; padding: 18px 20px; color: #dfe3da; border: 1px solid #4b4e45; background: #151713; }
.payment-note strong { color: var(--acid); font-size: 13px; }
.payment-note p { margin-top: 7px; color: #aeb2a8; font-size: 12px; line-height: 1.75; }
.button.acid { margin-top: 30px; color: var(--ink); background: var(--acid); border-color: var(--ink); }
.button.acid:hover { background: #eef21e; }
.transparency { display: grid; grid-template-columns: 1.08fr .92fr; gap: 100px; align-items: center; }
.public-mark { margin: 18px 0 30px; display: flex; align-items: flex-end; gap: 24px; }
.public-wordmark { margin: 0; font-size: clamp(52px, 6vw, 82px); font-weight: 950; line-height: .83; letter-spacing: -.08em; }
.lab-icon { width: 74px; height: 74px; flex: 0 0 auto; display: grid; place-items: center; border: 1px solid var(--ink); background: var(--acid); transform: rotate(3deg); }
.lab-icon img { width: 50px; height: 50px; }
.transparency-title h2 { font-size: 26px; letter-spacing: -.04em; }
.transparency-copy { padding-top: 22px; }
.transparency-copy p { margin-bottom: 18px; color: var(--ink-soft); }
.transparency-copy a { color: var(--teal); font-weight: 750; }
.apply { padding-top: 112px; display: grid; grid-template-columns: .72fr 1.28fr; gap: 80px; align-items: start; border-top: 1px solid var(--line); }
.apply-intro { position: sticky; top: 100px; }
.apply-intro > p:not(.section-label) { color: var(--ink-soft); }
.apply-intro dl { margin: 36px 0 0; border-top: 1px solid var(--line); }
.apply-intro dl > div { padding: 13px 0; display: flex; justify-content: space-between; border-bottom: 1px solid var(--line); }
.apply-intro dt { color: var(--ink-soft); font-size: 12px; }
.apply-intro dd { margin: 0; font-size: 13px; font-weight: 750; }
form { padding: 48px; display: grid; gap: 44px; background: var(--surface); border: 1px solid var(--line); border-radius: 2px; box-shadow: var(--shadow); }
fieldset { margin: 0; padding: 0; display: grid; gap: 18px; border: 0; }
fieldset + fieldset { padding-top: 40px; border-top: 1px solid var(--ink); }
legend { margin-bottom: 28px; color: var(--ink); font-size: 23px; font-weight: 900; letter-spacing: -.03em; }
legend img { width: 32px; height: 32px; margin-right: 12px; padding: 5px; vertical-align: middle; border: 1px solid var(--ink); background: var(--acid); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
label { display: grid; gap: 7px; font-size: 13px; font-weight: 700; }
label > span { color: var(--teal); font-size: 10px; }
input, textarea, select { width: 100%; padding: 15px 14px; border: 0; border-bottom: 1px solid #858a80; border-radius: 0; color: var(--ink); background: #fafbf7; font: inherit; font-size: 15px; }
textarea { resize: vertical; }
input:focus, textarea:focus, select:focus { outline: 3px solid rgba(0,143,120,.16); border-color: var(--teal); }
.consent { display: flex; align-items: flex-start; gap: 10px; font-weight: 400; }
.consent input { width: auto; margin-top: 7px; }
.consent span { color: var(--ink); font-size: 13px; }
.honeypot { position: absolute; left: -9999px; }
.form-status { min-height: 28px; margin: 0; }
.form-status.success { color: #006b59; font-weight: 700; }
.form-status.error { color: var(--error); font-weight: 700; }
footer { padding: 58px max(20px, calc((100vw - 1120px)/2)); display: grid; grid-template-columns: 1fr auto; gap: 26px; color: var(--ink-soft); border-top: 1px solid var(--line); background: var(--surface); }
footer p { margin-top: 10px; font-size: 12px; }
footer nav { display: flex; flex-wrap: wrap; gap: 20px; font-size: 12px; }
footer small { grid-column: 1/-1; font-size: 10px; }
.mobile-sticky { display: none; }
.legal { max-width: 760px; padding-top: 64px; }
.legal h1 { font-size: 48px; }
.legal h2 { margin-top: 42px; font-size: 26px; }

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; gap: 56px; }
  .evidence-board { max-width: 620px; }
  .audience-band, .offer-band, .transparency, .apply { grid-template-columns: 1fr; gap: 48px; }
  .fit-note, .customer-role { grid-template-columns: 1fr; gap: 12px; }
  .apply-intro { position: static; }
  .split-heading { grid-template-columns: 1fr; gap: 0; }
  .split-heading > p { padding-bottom: 0; }
}

@media (max-width: 680px) {
  body { font-size: 15px; padding-bottom: 68px; }
  .experiment-tag { display: none; }
  .header-cta { display: none; }
  section { margin: 72px auto; padding-left: 20px; padding-right: 20px; }
  .hero { padding-top: 56px; }
  h1 { font-size: 42px; line-height: 1.1; }
  h2 { font-size: 30px; }
  .lead { font-size: 17px; }
  .hero-copy { overflow-wrap: anywhere; }
  .hero-actions { align-items: stretch; flex-direction: column; gap: 16px; }
  .text-link { text-align: center; }
  .evidence-board { width: 100%; max-width: 100%; margin: 0; padding: 20px 16px; overflow: hidden; transform: none; }
  .board-head strong { font-size: 13px; }
  .metric-grid strong { font-size: 28px; }
  .metric-grid > div { padding: 13px 8px; }
  .metric-grid span { min-width: 0; overflow-wrap: anywhere; word-break: break-all; font-size: 8px; letter-spacing: .04em; }
  .signal-strip { margin-top: 72px; padding: 0 20px; grid-template-columns: 1fr; border-bottom: 0; }
  .signal-strip > div, .signal-strip > div:first-child { min-height: 100px; padding: 22px 0; grid-template-columns: 20px 42px 1fr; gap: 14px; border-left: 0; border-right: 0; border-bottom: 1px solid rgba(17,18,15,.35); }
  .signal-strip img { width: 42px; height: 42px; }
  .comparison-table > div { min-height: auto; grid-template-columns: 1fr 1fr; }
  .difference-visual { padding: 8px 8px 9px; }
  .difference-visual figcaption { margin-top: 10px; font-size: 8px; letter-spacing: .08em; }
  .comparison-table span { grid-column: 1/-1; padding: 12px 0 8px; }
  .comparison-table p, .comparison-table strong { min-height: 70px; padding: 14px; border-top: 1px solid var(--line); }
  .comparison-table p:nth-child(2), .comparison-table strong:nth-child(2) { border-left: 0; }
  .comparison-head { display: none !important; }
  .audience-band, .offer-band { padding-top: 72px; padding-bottom: 72px; }
  .route-grid { grid-template-columns: 1fr; }
  .route-grid article { min-height: 280px; padding: 26px 22px; }
  .fit-note, .customer-role { padding: 22px 20px; }
  .customer-role ul { grid-template-columns: 1fr; }
  .steps li { grid-template-columns: 64px 42px 1fr; gap: 12px; }
  .steps li > span { font-size: 23px; }
  .step-icon { width: 42px; height: 42px; padding: 7px; }
  .steps li > b { display: none; }
  .steps strong { font-size: 17px; }
  .scope-list { grid-template-columns: 1fr; }
  .offer-content, form { padding: 26px 20px; }
  .price strong { font-size: 48px; }
  .public-mark { align-items: flex-end; gap: 14px; }
  .lab-icon { width: 56px; height: 56px; }
  .lab-icon img { width: 38px; height: 38px; }
  legend { font-size: 20px; }
  legend img { width: 28px; height: 28px; margin-right: 8px; }
  .form-grid { grid-template-columns: 1fr; }
  footer { grid-template-columns: 1fr; }
  footer small { grid-column: auto; }
  .mobile-sticky { height: 64px; padding: 8px 18px; position: fixed; z-index: 30; right: 0; bottom: 0; left: 0; display: flex; align-items: center; justify-content: space-between; color: var(--ink); background: var(--acid); border-top: 1px solid var(--ink); text-decoration: none; }
  .mobile-sticky span { font-size: 10px; font-weight: 700; }
  .mobile-sticky strong { font-size: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}