:root {
  --primary: #13c9aa;
  --primary-dark: #089779;
  --primary-soft: #dcfff5;
  --lime: #7df66f;
  --ink: #111827;
  --muted: #5d6b7c;
  --line: #d9e7e2;
  --paper: #ffffff;
  --wash: #f4fbf8;
  --dark: #0b1412;
  --radius: 8px;
  --shadow: 0 22px 70px rgba(7, 45, 38, .12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(217, 231, 226, .75);
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(1180px, calc(100% - 36px));
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: 0;
}

.brand img {
  width: 50px;
  height: 50px;
  border-radius: 10px;
  object-fit: cover;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: #334155;
  font-size: 15px;
}

.nav-links a {
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--primary-dark);
}

.nav-cta,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 0;
  border-radius: var(--radius);
  background: var(--primary);
  color: #06231d;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 14px 32px rgba(19, 201, 170, .28);
}

.btn.secondary {
  background: #101827;
  color: #fff;
  box-shadow: none;
}

.btn.ghost {
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line);
  box-shadow: none;
}

.section {
  padding: 92px 0;
}

.section.alt {
  background: var(--wash);
}

.wrap {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .11em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.08;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(44px, 7vw, 84px);
  max-width: 980px;
}

h2 {
  font-size: clamp(32px, 4vw, 54px);
}

h3 {
  font-size: 22px;
}

p {
  margin: 0;
}

.lead {
  margin-top: 22px;
  max-width: 720px;
  color: var(--muted);
  font-size: 20px;
}

.hero {
  min-height: 760px;
  display: grid;
  align-items: center;
  padding: 82px 0 70px;
  background:
    linear-gradient(115deg, rgba(220, 255, 245, .96), rgba(255, 255, 255, .8) 42%, rgba(125, 246, 111, .15)),
    radial-gradient(circle at 80% 20%, rgba(19, 201, 170, .18), transparent 32%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(340px, .98fr);
  align-items: center;
  gap: 54px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.hero-media,
.feature-media,
.about-media,
.download-media,
.contact-media {
  overflow: hidden;
  border-radius: 8px;
  box-shadow: var(--shadow);
  background: #d9e7e2;
}

.hero-media img,
.feature-media img,
.about-media img,
.download-media img,
.contact-media img {
  width: 100%;
  height: 100%;
  min-height: 420px;
  object-fit: cover;
}

.market-panel {
  margin-top: 34px;
  max-width: 650px;
  border: 1px solid rgba(8, 151, 121, .16);
  border-radius: 8px;
  background: rgba(255, 255, 255, .72);
  box-shadow: 0 16px 40px rgba(17, 24, 39, .07);
}

.ticker {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 18px;
  padding: 16px 18px;
  border-bottom: 1px solid rgba(217, 231, 226, .8);
  align-items: center;
}

.ticker:last-child {
  border-bottom: 0;
}

.ticker strong {
  display: block;
}

.up {
  color: #07885c;
  font-weight: 900;
}

.down {
  color: #c2410c;
  font-weight: 900;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(320px, 1.05fr);
  gap: 56px;
  align-items: center;
}

.section-head {
  max-width: 760px;
  margin-bottom: 42px;
}

.feature-list {
  display: grid;
  gap: 16px;
}

.feature-row,
.step,
.legal-block,
.contact-method,
.stat,
.download-step {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 22px;
}

.feature-row {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 18px;
}

.mark {
  width: 46px;
  height: 46px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: #05241d;
  background: linear-gradient(135deg, var(--primary), var(--lime));
  font-weight: 900;
}

.flow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.step-number {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  margin-bottom: 18px;
  color: #06231d;
  background: var(--primary-soft);
  font-weight: 900;
}

.dark-band {
  background: var(--dark);
  color: #fff;
}

.dark-band .lead,
.dark-band p {
  color: #b9c9c3;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 38px;
}

.stat {
  background: rgba(255, 255, 255, .06);
  border-color: rgba(255, 255, 255, .12);
}

.stat strong {
  display: block;
  color: var(--lime);
  font-size: 34px;
  line-height: 1;
  margin-bottom: 10px;
}

.quote-grid,
.info-grid,
.download-grid,
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.quote,
.info,
.download-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 24px;
}

.quote p {
  color: var(--muted);
}

.quote strong {
  display: block;
  margin-top: 18px;
}

.cta-band {
  padding: 56px;
  border-radius: 8px;
  color: #fff;
  background: linear-gradient(135deg, #06231d, #0c6f5d 58%, #16c9a8);
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 24px;
}

.footer {
  padding: 42px 0;
  border-top: 1px solid var(--line);
  background: #fff;
}

.footer-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: var(--muted);
  font-size: 14px;
}

.footer-links {
  display: flex;
  gap: 18px;
}

.footer-links a {
  text-decoration: none;
}

.page-hero {
  padding: 86px 0 66px;
  background: linear-gradient(120deg, var(--primary-soft), #fff 56%, rgba(125, 246, 111, .12));
}

.page-hero .wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

.about-layout {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(340px, 1.1fr);
  gap: 54px;
  align-items: center;
}

.values {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 30px;
}

.legal-shell {
  max-width: 900px;
  margin: 0 auto;
}

.legal-note {
  padding: 24px;
  border-left: 5px solid var(--primary);
  border-radius: 8px;
  background: var(--primary-soft);
  margin-bottom: 28px;
}

.legal-block {
  margin-top: 18px;
}

.legal-block h2 {
  font-size: 27px;
  margin-bottom: 12px;
}

.legal-block ul {
  margin: 14px 0 0;
  padding-left: 22px;
}

.contact-layout,
.download-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(330px, .72fr);
  gap: 40px;
  align-items: start;
}

.form-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 28px;
  box-shadow: var(--shadow);
}

label {
  display: block;
  margin-bottom: 6px;
  color: #263442;
  font-weight: 800;
  font-size: 14px;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfefd;
  color: var(--ink);
  font: inherit;
  padding: 13px 14px;
  outline: none;
}

textarea {
  min-height: 150px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(19, 201, 170, .14);
}

.field {
  margin-bottom: 18px;
}

.check {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 20px;
  color: var(--muted);
  font-size: 14px;
}

.check input {
  width: auto;
  margin-top: 5px;
}

.notice {
  display: none;
  margin-top: 16px;
  padding: 13px 14px;
  border-radius: 8px;
  background: var(--primary-soft);
  color: #075f4e;
  font-weight: 800;
}

.form-panel:target .notice {
  display: block;
}

.contact-stack {
  display: grid;
  gap: 16px;
}

.store-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.store {
  min-width: 178px;
  padding: 12px 18px;
  border-radius: 8px;
  background: #0b1412;
  color: #fff;
  text-decoration: none;
}

.store span {
  display: block;
  color: #b9c9c3;
  font-size: 12px;
}

.download-steps {
  display: grid;
  gap: 14px;
}

.about-h5 .site-header,
.about-h5 .footer {
  display: none;
}

.about-h5 .page-hero {
  padding: 46px 0 32px;
}

.about-h5 h1 {
  font-size: 42px;
}

@media (max-width: 900px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 6px;
  }

  .hero-grid,
  .split,
  .about-layout,
  .contact-layout,
  .download-layout,
  .cta-band {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .flow,
  .quote-grid,
  .info-grid,
  .download-grid,
  .contact-grid,
  .stats,
  .values {
    grid-template-columns: 1fr;
  }

  .cta-band {
    padding: 32px;
  }
}

@media (max-width: 560px) {
  .section {
    padding: 62px 0;
  }

  .nav-links {
    gap: 14px;
    font-size: 14px;
  }

  .hero-media img,
  .feature-media img,
  .about-media img,
  .download-media img,
  .contact-media img {
    min-height: 300px;
  }

  .ticker {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}