:root {
  --navy: #102a3b;
  --navy-soft: #36505f;
  --green: #16745a;
  --green-dark: #0c5944;
  --green-pale: #e7f4ef;
  --mint: #f3faf7;
  --sand: #f8f6f1;
  --line: #dce6e2;
  --white: #fff;
  --shadow: 0 18px 55px rgba(16, 42, 59, .11);
  --radius: 22px;
  --max: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--navy);
  background: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: .02em;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img, svg { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid #e0a22b; outline-offset: 4px; border-radius: 4px; }
.skip-link { position: fixed; top: -100px; left: 16px; z-index: 100; padding: 10px 16px; background: var(--navy); color: white; }
.skip-link:focus { top: 12px; }
.container { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; }
.section { padding: 104px 0; scroll-margin-top: 76px; }
.section--tint { background: var(--mint); }
.section--sand { background: var(--sand); }
.eyebrow { margin: 0 0 14px; color: var(--green); font-size: .8rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.section-heading { max-width: 710px; margin-bottom: 52px; }
.section-heading h2 { margin: 0 0 16px; font-size: clamp(2rem, 4vw, 3rem); line-height: 1.35; letter-spacing: -.03em; }
.section-heading p { margin: 0; color: var(--navy-soft); font-size: 1.06rem; }

.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid rgba(220,230,226,.8); background: rgba(255,255,255,.92); backdrop-filter: blur(12px); }
.header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: flex; align-items: center; gap: 11px; text-decoration: none; font-weight: 800; letter-spacing: -.02em; }
.brand-mark { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 11px; background: var(--green); color: white; }
.brand small { display: block; color: var(--navy-soft); font-size: .62rem; font-weight: 600; letter-spacing: .08em; line-height: 1; }
.nav { display: flex; align-items: center; gap: 28px; font-size: .88rem; font-weight: 700; }
.nav a { text-decoration: none; }
.nav a:not(.button):hover { color: var(--green); }
.menu-button { display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 12px; background: white; color: var(--navy); font-size: 1.35rem; }

.button { display: inline-flex; min-height: 52px; align-items: center; justify-content: center; gap: 8px; padding: 12px 23px; border: 1px solid var(--green); border-radius: 999px; color: var(--green-dark); background: white; font-weight: 800; line-height: 1.3; text-align: center; text-decoration: none; transition: transform .2s, box-shadow .2s, background .2s; }
.button:hover { transform: translateY(-2px); box-shadow: 0 9px 24px rgba(16, 42, 59, .12); }
.button--primary { color: white; background: var(--green); }
.button--primary:hover { background: var(--green-dark); }
.button--small { min-height: 42px; padding: 8px 18px; }

.hero { position: relative; overflow: hidden; padding: 76px 0 92px; background: linear-gradient(140deg, #fff 35%, #edf8f3 100%); }
.hero::before { content: ""; position: absolute; width: 490px; height: 490px; right: -210px; top: -230px; border: 1px solid rgba(22,116,90,.18); border-radius: 50%; box-shadow: 0 0 0 70px rgba(22,116,90,.025), 0 0 0 140px rgba(22,116,90,.02); }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.03fr .97fr; align-items: center; gap: 68px; }
.pilot-label { display: inline-flex; align-items: center; gap: 9px; margin-bottom: 24px; padding: 7px 13px; border: 1px solid #bddfd2; border-radius: 999px; color: var(--green-dark); background: white; font-size: .8rem; font-weight: 800; }
.pilot-label::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: #30a37c; box-shadow: 0 0 0 4px #daf1e8; }
.hero h1 { margin: 0 0 23px; font-size: clamp(2.45rem, 5vw, 4.3rem); line-height: 1.2; letter-spacing: -.045em; }
.hero h1 em { color: var(--green); font-style: normal; }
.hero-copy { max-width: 650px; margin: 0 0 32px; color: var(--navy-soft); font-size: 1.12rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-note { margin: 18px 0 0; color: #5c6f79; font-size: .76rem; }
.connection-visual { position: relative; min-height: 440px; display: grid; grid-template-columns: 1fr 1fr; align-content: center; gap: 70px; }
.connection-line { position: absolute; top: 50%; left: 20%; right: 20%; height: 3px; background: repeating-linear-gradient(90deg, var(--green) 0 8px, transparent 8px 16px); }
.visual-card { position: relative; z-index: 2; padding: 26px 20px; border: 1px solid rgba(220,230,226,.9); border-radius: var(--radius); background: rgba(255,255,255,.95); box-shadow: var(--shadow); text-align: center; }
.visual-card:nth-of-type(2) { transform: translateY(48px); }
.visual-icon { width: 66px; height: 66px; display: grid; place-items: center; margin: 0 auto 15px; border-radius: 20px; background: var(--green-pale); color: var(--green); }
.visual-card strong { display: block; font-size: 1.08rem; }
.visual-card span { color: var(--navy-soft); font-size: .78rem; }
.play-badge { position: absolute; z-index: 3; top: calc(50% - 27px); left: calc(50% - 27px); width: 54px; height: 54px; display: grid; place-items: center; border: 7px solid white; border-radius: 50%; color: white; background: var(--green); box-shadow: 0 8px 20px rgba(16,42,59,.18); }

.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; counter-reset: step; }
.step { position: relative; min-height: 230px; padding: 27px 22px; border: 1px solid var(--line); border-radius: 18px; background: white; }
.step::after { content: "›"; position: absolute; right: -13px; top: 42px; z-index: 2; width: 26px; height: 26px; border-radius: 50%; color: var(--green); background: var(--green-pale); font-weight: 800; text-align: center; line-height: 24px; }
.step:last-child::after { display: none; }
.step-number { display: block; margin-bottom: 28px; color: var(--green); font: 800 .76rem/1 sans-serif; letter-spacing: .1em; }
.step h3 { margin: 0 0 9px; font-size: 1rem; }
.step p { margin: 0; color: var(--navy-soft); font-size: .82rem; line-height: 1.65; }
.measure-row { display: flex; justify-content: center; gap: 8px; margin-top: 36px; flex-wrap: wrap; }
.metric { padding: 9px 15px; border-radius: 999px; color: var(--green-dark); background: var(--green-pale); font-size: .82rem; font-weight: 700; }

.audience-section { overflow: hidden; }
.audience-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.audience-card { position: relative; padding: 45px; border-radius: 28px; }
.audience-card--advertiser { color: white; background: var(--navy); }
.audience-card--creator { border: 1px solid #cfe5dc; background: var(--mint); }
.audience-label { display: inline-block; margin-bottom: 26px; padding: 5px 11px; border-radius: 6px; background: rgba(255,255,255,.13); font-size: .75rem; font-weight: 800; letter-spacing: .08em; }
.audience-card--creator .audience-label { color: var(--green-dark); background: var(--green-pale); }
.audience-card h2 { margin: 0 0 13px; font-size: clamp(1.7rem, 3vw, 2.35rem); line-height: 1.4; }
.audience-card > p { margin: 0 0 28px; opacity: .8; }
.feature-list { display: grid; gap: 15px; margin: 0 0 32px; padding: 0; list-style: none; }
.feature-list li { display: grid; grid-template-columns: 24px 1fr; gap: 10px; }
.feature-list li::before { content: "✓"; width: 22px; height: 22px; border-radius: 50%; color: var(--green-dark); background: #bdebd8; font-size: .76rem; font-weight: 900; text-align: center; line-height: 22px; }
.audience-card--advertiser .button { border-color: white; }
.condition-note { padding: 18px; border-left: 3px solid #62b799; background: rgba(255,255,255,.07); font-size: .83rem; }
.audience-card--creator .condition-note { background: white; }

.flow-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.flow-panel { padding: 36px; border: 1px solid var(--line); border-radius: var(--radius); }
.flow-panel h3 { margin: 0 0 28px; font-size: 1.35rem; }
.flow-list { margin: 0; padding: 0; list-style: none; counter-reset: flow; }
.flow-list li { position: relative; padding: 0 0 27px 52px; counter-increment: flow; }
.flow-list li:last-child { padding-bottom: 0; }
.flow-list li::before { content: counter(flow); position: absolute; left: 0; top: 0; width: 32px; height: 32px; border-radius: 10px; color: white; background: var(--green); font-weight: 800; text-align: center; line-height: 32px; }
.flow-list li:not(:last-child)::after { content: ""; position: absolute; left: 15px; top: 37px; bottom: 5px; width: 1px; background: var(--line); }
.flow-list strong { display: block; }
.flow-list span { color: var(--navy-soft); font-size: .86rem; }

.pilot-box { display: grid; grid-template-columns: .9fr 1.1fr; gap: 54px; align-items: center; padding: 55px; border-radius: 30px; color: white; background: var(--green-dark); }
.pilot-box h2 { margin: 0 0 15px; font-size: clamp(1.8rem, 3vw, 2.7rem); line-height: 1.4; }
.pilot-box p { margin: 0; opacity: .82; }
.pilot-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.pilot-stat { padding: 22px; border: 1px solid rgba(255,255,255,.17); border-radius: 16px; background: rgba(255,255,255,.08); }
.pilot-stat strong { display: block; font-size: 1.45rem; }
.pilot-stat span { font-size: .75rem; opacity: .78; }
.pilot-caveat { grid-column: 1 / -1; font-size: .72rem; opacity: .75; }

.faq-list { max-width: 900px; margin: 0 auto; border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 24px 48px 24px 0; cursor: pointer; font-weight: 800; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 8px; top: 21px; color: var(--green); font-size: 1.5rem; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-answer { padding: 0 46px 25px 0; color: var(--navy-soft); }
.faq-answer p { margin: 0; }

.application-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.application-card { padding: 36px; border: 1px solid var(--line); border-radius: var(--radius); background: white; }
.application-card h3 { margin: 0 0 10px; font-size: 1.35rem; }
.application-card ul { padding-left: 1.3em; color: var(--navy-soft); font-size: .84rem; }
.form-status { margin-top: 24px; padding: 17px; border-radius: 12px; color: var(--navy-soft); background: var(--sand); font-size: .86rem; }
.form-status p { margin: 8px 0 0; }

.operator-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 55px; }
.operator-note { color: var(--navy-soft); }
.info-table { margin: 0; border-top: 1px solid var(--line); }
.info-row { display: grid; grid-template-columns: 150px 1fr; padding: 20px 0; border-bottom: 1px solid var(--line); }
.info-row dt { font-weight: 800; }
.info-row dd { margin: 0; }
.is-pending { color: #687b84; font-style: normal; }
a[aria-disabled="true"] { cursor: default; text-decoration: none; }

.site-footer { padding: 50px 0 25px; color: #d5e0e4; background: #0b2331; }
.footer-top { display: flex; justify-content: space-between; gap: 30px; padding-bottom: 36px; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer-brand { color: white; }
.footer-links { display: flex; gap: 25px; flex-wrap: wrap; font-size: .82rem; }
.footer-links a { text-decoration: none; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 22px; font-size: .7rem; }
.disclaimer { max-width: 690px; margin: 0; opacity: .7; }

.legal-hero { padding: 70px 0 55px; background: var(--mint); }
.legal-hero h1 { margin: 0 0 12px; font-size: clamp(2.1rem, 4vw, 3.4rem); }
.legal-content { max-width: 820px; padding-top: 72px; padding-bottom: 90px; }
.legal-alert { margin-bottom: 42px; padding: 20px; border: 1px solid #e2c878; border-radius: 12px; background: #fff9e7; }
.legal-content h2 { margin: 45px 0 12px; font-size: 1.4rem; }
.legal-content p, .legal-content li { color: var(--navy-soft); }

@media (max-width: 960px) {
  .nav { display: none; position: absolute; top: 76px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; padding: 15px 24px 24px; border-bottom: 1px solid var(--line); background: white; box-shadow: 0 15px 25px rgba(16,42,59,.08); }
  .nav.is-open { display: flex; }
  .nav a { padding: 12px; text-align: center; }
  .menu-button { display: block; }
  .hero-grid { grid-template-columns: 1fr; gap: 18px; }
  .connection-visual { width: min(620px, 100%); min-height: 320px; margin-inline: auto; }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .step:nth-child(3)::after { display: none; }
  .pilot-box { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .container { width: min(calc(100% - 32px), var(--max)); }
  .section { padding: 72px 0; }
  .section-heading { margin-bottom: 34px; }
  .hero { padding: 51px 0 65px; }
  .hero h1 { font-size: clamp(2.2rem, 11vw, 3.3rem); }
  .hero-copy { font-size: 1rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .connection-visual { min-height: 280px; gap: 28px; }
  .visual-card { padding: 20px 10px; }
  .visual-card:nth-of-type(2) { transform: translateY(34px); }
  .visual-icon { width: 50px; height: 50px; }
  .play-badge { width: 46px; height: 46px; top: calc(50% - 23px); left: calc(50% - 23px); border-width: 5px; }
  .steps, .audience-grid, .flow-tabs, .application-grid, .operator-grid { grid-template-columns: 1fr; }
  .step { min-height: 0; }
  .step::after { content: "⌄"; right: calc(50% - 13px); top: auto; bottom: -20px; }
  .step:nth-child(3)::after { display: block; }
  .step:last-child::after { display: none; }
  .audience-card { padding: 31px 25px; }
  .flow-panel { padding: 28px 23px; }
  .pilot-box { padding: 33px 24px; gap: 35px; }
  .pilot-stats { grid-template-columns: 1fr; }
  .pilot-caveat { grid-column: auto; }
  .application-card { padding: 28px 23px; }
  .info-row { grid-template-columns: 1fr; gap: 5px; }
  .footer-top, .footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}