:root {
  color-scheme: dark;
  --bg: #071326;
  --bg-2: #0b1930;
  --surface: rgba(12, 28, 53, 0.88);
  --surface-strong: rgba(15, 35, 66, 0.96);
  --surface-soft: rgba(255, 255, 255, 0.04);
  --border: rgba(92, 136, 187, 0.22);
  --border-strong: rgba(125, 181, 236, 0.35);
  --text: #f4f7fb;
  --muted: #a9b8cd;
  --muted-2: #7f96b1;
  --cyan: #31c7e6;
  --cyan-deep: #1a7992;
  --amber: #ffb95c;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.34);
  --shadow-soft: 0 12px 28px rgba(0, 0, 0, 0.22);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --container: 1180px;
  --font-en: "Inter", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-jp: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--font-jp);
  background:
    radial-gradient(circle at 15% 8%, rgba(49, 199, 230, 0.16), transparent 26%),
    radial-gradient(circle at 86% 10%, rgba(26, 121, 146, 0.26), transparent 28%),
    radial-gradient(circle at 70% 70%, rgba(255, 185, 92, 0.07), transparent 18%),
    linear-gradient(180deg, #040d1a 0%, #071326 24%, #071326 100%);
  overflow-x: hidden;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: auto;
  z-index: -1;
  pointer-events: none;
  filter: blur(18px);
}

body::before {
  width: 380px;
  height: 380px;
  left: -120px;
  top: 120px;
  background: radial-gradient(circle, rgba(49, 199, 230, 0.28), transparent 68%);
}

body::after {
  width: 560px;
  height: 560px;
  right: -220px;
  top: 40px;
  background: radial-gradient(circle, rgba(26, 121, 146, 0.24), transparent 70%);
}

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

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

.site-shell {
  position: relative;
}

.container {
  width: min(var(--container), calc(100vw - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(22px);
  background: rgba(5, 14, 28, 0.72);
  border-bottom: 1px solid rgba(126, 187, 255, 0.12);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 84px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  color: #06101e;
  font-family: var(--font-en);
  font-weight: 800;
  letter-spacing: 0.02em;
  background: linear-gradient(135deg, #31c7e6 0%, #1a7992 100%);
  box-shadow: 0 0 30px rgba(49, 199, 230, 0.24);
}

.brand-copy {
  min-width: 0;
}

.brand-name {
  display: block;
  font-family: var(--font-en);
  font-size: 1.02rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: 0.01em;
}

.brand-tagline {
  display: block;
  margin-top: 4px;
  font-family: var(--font-en);
  font-size: 0.76rem;
  color: var(--muted);
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}

.nav a {
  font-size: 0.92rem;
  color: var(--muted);
  transition: color 0.2s ease, opacity 0.2s ease;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--text);
}

.nav-cta {
  padding: 13px 18px;
  border-radius: 999px;
  background: var(--cyan);
  color: #06101e;
  font-family: var(--font-en);
  font-size: 0.9rem;
  font-weight: 800;
  box-shadow: 0 12px 30px rgba(49, 199, 230, 0.18);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border-radius: 999px;
  padding: 10px 14px;
  font-family: var(--font-en);
  font-size: 0.82rem;
}

.mobile-nav {
  display: none;
  border-top: 1px solid rgba(126, 187, 255, 0.12);
  background: rgba(6, 17, 31, 0.92);
}

.mobile-nav.open {
  display: block;
}

.mobile-nav .container {
  display: grid;
  gap: 12px;
  padding: 16px 0 22px;
}

.mobile-nav a {
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(126, 187, 255, 0.08);
  color: var(--text);
}

.page {
  padding: 28px 0 80px;
}

.page + .page {
  margin-top: 16px;
}

.hero,
.section,
.cta-band {
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(11, 25, 48, 0.9), rgba(8, 19, 38, 0.9));
  box-shadow: var(--shadow);
}

.hero {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  padding: 28px;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(10px);
}

.hero::before {
  width: 320px;
  height: 320px;
  left: -110px;
  top: -70px;
  background: radial-gradient(circle, rgba(49, 199, 230, 0.25), transparent 64%);
}

.hero::after {
  width: 220px;
  height: 220px;
  right: 24px;
  top: 28px;
  background: radial-gradient(circle, rgba(255, 185, 92, 0.12), transparent 66%);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
  gap: 24px;
  align-items: start;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  padding: 9px 13px;
  border: 1px solid rgba(126, 187, 255, 0.18);
  border-radius: 999px;
  background: rgba(10, 26, 50, 0.78);
  color: var(--cyan);
  font-size: 0.76rem;
  font-family: var(--font-en);
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.headline {
  margin: 14px 0 0;
  font-family: var(--font-jp);
  font-size: clamp(2.4rem, 5vw, 4.75rem);
  line-height: 0.96;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.headline .accent {
  color: var(--cyan);
}

.headline-en {
  margin: 14px 0 0;
  font-family: var(--font-en);
  font-size: clamp(1rem, 1.8vw, 1.3rem);
  font-weight: 700;
  color: var(--cyan);
}

.subheadline {
  margin: 16px 0 0;
  max-width: 64ch;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--muted);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: var(--font-en);
  font-size: 0.92rem;
  font-weight: 800;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--cyan);
  color: #06101e;
  box-shadow: 0 18px 30px rgba(49, 199, 230, 0.16);
}

.button-secondary {
  color: var(--text);
  background: rgba(14, 33, 61, 0.84);
  border-color: rgba(126, 187, 255, 0.18);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
  color: var(--muted-2);
  font-size: 0.78rem;
}

.hero-copy {
  display: grid;
  align-content: start;
  gap: 0;
  padding: 8px;
}

.hero-visual,
.image-panel {
  position: relative;
  border-radius: var(--radius-xl);
  padding: 14px;
  background: linear-gradient(180deg, rgba(9, 23, 43, 0.94), rgba(8, 19, 36, 0.94));
  border: 1px solid rgba(126, 187, 255, 0.14);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03), var(--shadow-soft);
  overflow: hidden;
}

.hero-visual-home {
  display: grid;
  gap: 12px;
}

.hero-visual::before,
.image-panel::before {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: calc(var(--radius-xl) - 10px);
  border: 1px solid rgba(49, 199, 230, 0.09);
  pointer-events: none;
}

.hero-visual img,
.image-panel img {
  width: 100%;
  height: auto;
  border-radius: calc(var(--radius-xl) - 12px);
}

.hero-image-frame {
  overflow: hidden;
  border-radius: calc(var(--radius-xl) - 10px);
  aspect-ratio: 2752 / 1536;
}

.hero-image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}

.hero-visual .stack {
  display: grid;
  gap: 12px;
}

.hero-kpi-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.hero-kpi {
  padding: 16px;
  border-radius: var(--radius-lg);
  background: rgba(14, 33, 61, 0.92);
  border: 1px solid rgba(126, 187, 255, 0.16);
}

.hero-kpi strong {
  display: block;
  font-family: var(--font-en);
  font-size: clamp(1.4rem, 3vw, 2rem);
  line-height: 1;
}

.hero-kpi span {
  display: block;
  margin-top: 7px;
  font-size: 0.76rem;
  color: var(--muted);
}

.section {
  margin-top: 18px;
  border-radius: var(--radius-xl);
  padding: 28px;
}

.section-head {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}

.section-label {
  color: var(--cyan);
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-title {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2.45rem);
  line-height: 1.05;
  text-wrap: balance;
}

.section-copy {
  margin: 0;
  max-width: 72ch;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.7;
}

.grid-3,
.grid-4,
.grid-6 {
  display: grid;
  gap: 14px;
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid-6 {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.card {
  position: relative;
  overflow: hidden;
  padding: 18px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(14, 33, 61, 0.96), rgba(10, 24, 44, 0.98));
  border: 1px solid rgba(126, 187, 255, 0.12);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(130deg, rgba(49, 199, 230, 0.08), transparent 35%, transparent 70%, rgba(255, 185, 92, 0.06));
  pointer-events: none;
}

.card > * {
  position: relative;
  z-index: 1;
}

.card-title {
  margin: 0;
  font-family: var(--font-en);
  font-size: 1rem;
  font-weight: 800;
}

.card-copy {
  margin: 10px 0 0;
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--muted);
}

.card-list {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 7px;
}

.card-list li {
  color: var(--cyan);
  font-size: 0.78rem;
  font-family: var(--font-en);
  font-weight: 600;
}

.number-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: rgba(49, 199, 230, 0.12);
  border: 1px solid rgba(49, 199, 230, 0.18);
  color: var(--cyan);
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 0.76rem;
}

.feature-row {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 16px;
  align-items: start;
}

.feature-panel {
  padding: 18px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(11, 25, 48, 0.95), rgba(10, 22, 42, 0.95));
  border: 1px solid rgba(126, 187, 255, 0.14);
}

.feature-panel .small {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.65;
}

.feature-panel img {
  margin-top: 14px;
  width: 100%;
  aspect-ratio: 2752 / 1536;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.timeline {
  display: grid;
  gap: 10px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 12px;
  align-items: start;
  padding: 14px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(126, 187, 255, 0.1);
}

.timeline-item h3 {
  margin: 0;
  font-size: 0.95rem;
}

.timeline-item p {
  margin: 7px 0 0;
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--muted);
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(126, 187, 255, 0.16);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  font-family: var(--font-en);
  font-size: 0.82rem;
  font-weight: 700;
}

.cta-band {
  margin-top: 18px;
  border-radius: var(--radius-xl);
  padding: 24px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.cta-band h2 {
  margin: 0;
  font-size: clamp(1.4rem, 3vw, 2rem);
}

.cta-band p {
  margin: 8px 0 0;
  color: var(--muted);
  max-width: 68ch;
}

.footer {
  padding: 28px 0 80px;
}

.footer-card {
  border-radius: var(--radius-xl);
  padding: 22px 24px;
  background: linear-gradient(180deg, rgba(8, 23, 43, 0.95), rgba(7, 18, 35, 0.96));
  border: 1px solid rgba(126, 187, 255, 0.12);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 0.8fr;
  gap: 18px;
  align-items: start;
}

.footer-grid h3 {
  margin: 0 0 10px;
  font-size: 0.9rem;
  color: var(--cyan);
  font-family: var(--font-en);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-grid p,
.footer-grid a {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .hero-grid,
  .feature-row,
  .footer-grid,
  .grid-4,
  .grid-6 {
    grid-template-columns: 1fr;
  }

  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 900px) {
  .nav {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }

  .hero,
  .section {
    padding: 18px;
  }

  .hero-grid {
    gap: 16px;
  }

  .hero-image-frame {
    aspect-ratio: 2752 / 1536;
  }

  .headline {
    font-size: clamp(2rem, 12vw, 3rem);
  }

  .hero-kpi-row {
    grid-template-columns: 1fr;
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-header .container {
    min-height: 72px;
  }

  .brand-tagline {
    display: none;
  }

  .container {
    width: min(var(--container), calc(100vw - 20px));
  }

  .page {
    padding-top: 18px;
  }

  .hero,
  .section,
  .footer-card {
    border-radius: 24px;
  }

  .cta-row {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }
}