:root {
  --primary: #0b7a75;
  --primary-dark: #075955;
  --accent: #f5b84b;
  --ink: #102331;
  --muted: #5f6f7c;
  --line: #dbe7e6;
  --paper: #ffffff;
  --soft: #eef8f6;
  --soft-2: #f7fbff;
  --danger: #b94b55;
  --shadow: 0 20px 50px rgba(16, 35, 49, 0.13);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: Inter, "Noto Sans JP", "Hiragino Sans", "Yu Gothic", Arial, sans-serif;
  background: var(--paper);
  line-height: 1.65;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.93);
  border-bottom: 1px solid rgba(219, 231, 230, 0.85);
  backdrop-filter: blur(14px);
}

.nav {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: 0;
}

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

.brand span {
  font-size: 1.08rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a {
  padding: 10px 13px;
  border-radius: 8px;
  color: #344a57;
  font-size: 0.94rem;
  font-weight: 650;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  background: var(--soft);
  color: var(--primary-dark);
}

.nav-cta,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 12px 18px;
  border: 0;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 12px 24px rgba(11, 122, 117, 0.22);
}

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

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  font-size: 1.5rem;
}

.section {
  padding: 92px 0;
}

.section.alt {
  background: linear-gradient(180deg, var(--soft), #fff);
}

.container {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--primary-dark);
  font-weight: 850;
  font-size: 0.86rem;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.12;
  letter-spacing: 0;
}

h1 {
  max-width: 820px;
  font-size: clamp(2.6rem, 6vw, 5.6rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 3.25rem);
}

h3 {
  font-size: 1.28rem;
}

p {
  margin: 0;
}

.lead {
  max-width: 700px;
  margin-top: 22px;
  color: var(--muted);
  font-size: 1.12rem;
}

.hero {
  min-height: calc(100vh - 78px);
  display: grid;
  align-items: end;
  background:
    linear-gradient(90deg, rgba(8, 35, 38, 0.86), rgba(8, 35, 38, 0.45)),
    var(--hero-image, linear-gradient(120deg, #0b7a75, #102331));
  background-size: cover;
  background-position: center;
  color: #fff;
}

.hero .container {
  padding: 88px 0 54px;
}

.hero .lead {
  color: rgba(255, 255, 255, 0.86);
}

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

.hero .btn.secondary {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.32);
}

.signal-row {
  width: min(980px, 100%);
  margin-top: 72px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid rgba(255, 255, 255, 0.24);
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(12px);
}

.signal {
  min-height: 116px;
  padding: 22px;
  border-right: 1px solid rgba(255, 255, 255, 0.18);
}

.signal:last-child {
  border-right: 0;
}

.signal strong {
  display: block;
  font-size: 1.7rem;
  line-height: 1;
}

.signal span {
  display: block;
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.95rem;
}

.split {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 56px;
  align-items: center;
}

.feature-panel {
  border-left: 5px solid var(--primary);
  padding-left: 24px;
}

.feature-list {
  margin-top: 30px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.feature {
  min-height: 170px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.icon {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  display: inline-grid;
  place-items: center;
  margin-bottom: 18px;
  color: var(--primary-dark);
  background: var(--soft);
  font-weight: 900;
}

.market-board {
  min-height: 430px;
  padding: 28px;
  border-radius: 8px;
  color: #fff;
  background: linear-gradient(145deg, rgba(16, 35, 49, 0.96), rgba(7, 89, 85, 0.92));
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow);
}

.ticker {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.ticker span {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.92rem;
}

.ticker strong:last-child {
  color: #88e0a3;
}

.workflow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 34px;
  background: var(--line);
  border: 1px solid var(--line);
}

.step {
  min-height: 220px;
  padding: 26px;
  background: #fff;
}

.step-number {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  margin-bottom: 24px;
  border-radius: 50%;
  color: #fff;
  background: var(--primary);
  font-weight: 900;
}

.band {
  color: #fff;
  background: linear-gradient(120deg, var(--primary-dark), #102331);
}

.band .lead {
  color: rgba(255, 255, 255, 0.78);
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 34px;
}

.card {
  min-height: 210px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.band .card {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.09);
}

.quote {
  font-size: 1.02rem;
  color: var(--muted);
}

.band .quote {
  color: rgba(255, 255, 255, 0.78);
}

.cta-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 34px;
  border-radius: 8px;
  background: var(--soft);
}

.page-hero {
  padding: 90px 0 58px;
  background: linear-gradient(180deg, var(--soft), #fff);
}

.about-visual {
  min-height: 470px;
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(16, 35, 49, 0.08), rgba(16, 35, 49, 0.2)),
    var(--about-image, linear-gradient(120deg, #dfeeed, #ffffff));
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 34px;
}

.metric {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.metric strong {
  display: block;
  color: var(--primary-dark);
  font-size: 2rem;
}

.legal {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 42px;
  align-items: start;
}

.legal-aside {
  position: sticky;
  top: 100px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.legal-content {
  display: grid;
  gap: 18px;
}

.legal-section {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.legal-section h2 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.legal-section ul,
.legal-section ol {
  margin: 14px 0 0;
  padding-left: 22px;
  color: var(--muted);
}

.highlight {
  padding: 18px;
  border-left: 5px solid var(--accent);
  background: #fff8e8;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 34px;
  align-items: start;
}

.form {
  display: grid;
  gap: 16px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

label {
  display: grid;
  gap: 8px;
  color: #324652;
  font-weight: 750;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid #cbdad8;
  border-radius: 8px;
  padding: 13px 14px;
  color: var(--ink);
  font: inherit;
  background: #fff;
}

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

.check {
  display: flex;
  grid-template-columns: none;
  align-items: flex-start;
  gap: 10px;
  font-weight: 600;
}

.check input {
  width: auto;
  margin-top: 7px;
}

.form-note {
  display: none;
  padding: 13px 14px;
  border-radius: 8px;
  color: var(--primary-dark);
  background: var(--soft);
  font-weight: 750;
}

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

.download-hero {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.device-photo {
  min-height: 460px;
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(16, 35, 49, 0.04), rgba(16, 35, 49, 0.18)),
    var(--device-image, linear-gradient(120deg, #dfeeed, #ffffff));
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow);
}

.store-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.store {
  min-width: 190px;
  padding: 14px 16px;
  border-radius: 8px;
  color: #fff;
  background: #111820;
  font-weight: 850;
}

.store span {
  display: block;
  font-size: 0.74rem;
  color: rgba(255, 255, 255, 0.68);
  line-height: 1;
}

.requirements {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.footer {
  padding: 36px 0;
  color: #d8e6e5;
  background: #102331;
}

.footer .container {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.h5-body .container {
  width: min(760px, calc(100% - 28px));
}

.h5-body .page-hero {
  padding-top: 48px;
}

.h5-logo {
  width: 50px;
  height: 50px;
  border-radius: 10px;
  margin-bottom: 28px;
}

@media (max-width: 860px) {
  .nav {
    width: min(100% - 28px, 1160px);
  }

  .menu-toggle {
    display: inline-grid;
    place-items: center;
  }

  .nav-links {
    position: absolute;
    left: 14px;
    right: 14px;
    top: 76px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    box-shadow: var(--shadow);
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-cta {
    display: none;
  }

  .section {
    padding: 64px 0;
  }

  .container {
    width: min(100% - 28px, 1160px);
  }

  .hero {
    min-height: auto;
  }

  .hero .container {
    padding: 74px 0 34px;
  }

  .signal-row,
  .split,
  .workflow,
  .cards,
  .metrics,
  .legal,
  .contact-grid,
  .download-hero,
  .requirements {
    grid-template-columns: 1fr;
  }

  .signal {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  }

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

  .feature-list {
    grid-template-columns: 1fr;
  }

  .legal-aside {
    position: static;
  }

  .cta-strip {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  h1 {
    font-size: 2.42rem;
  }

  .brand span {
    max-width: 145px;
  }

  .hero-actions,
  .store-buttons {
    flex-direction: column;
  }

  .btn,
  .store {
    width: 100%;
  }

  .form {
    padding: 22px;
  }
}