:root {
  --bg: #08111f;
  --bg-soft: #0d1727;
  --card: rgba(12, 21, 37, 0.78);
  --card-2: rgba(255, 255, 255, 0.06);
  --line: rgba(255, 255, 255, 0.12);
  --text: #eef4ff;
  --muted: rgba(238, 244, 255, 0.72);
  --accent: #7dd3fc;
  --accent-2: #a78bfa;
  --accent-3: #34d399;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.32);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 16px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Noto Sans JP", system-ui, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(125, 211, 252, 0.14), transparent 28%),
    radial-gradient(circle at right top, rgba(167, 139, 250, 0.18), transparent 22%),
    linear-gradient(180deg, #060b15 0%, var(--bg) 32%, #09101c 100%);
  color: var(--text);
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.page-shell {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
  padding: 18px 0 64px;
}

.topbar {
  position: sticky;
  top: 12px;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 14px 18px;
  margin-bottom: 26px;
  background: rgba(8, 17, 31, 0.76);
  backdrop-filter: blur(18px);
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: var(--shadow);
}

.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #07111f;
  font-weight: 800;
}
.brand-text strong { display: block; font-size: 0.96rem; }
.brand-text small { display: block; color: var(--muted); font-size: 0.72rem; }

.topnav { display: flex; gap: 18px; color: var(--muted); font-size: 0.92rem; }
.topnav a:hover { color: var(--text); }

.section { padding: 72px 0; }
.section-muted {
  margin: 0 -16px;
  padding-left: 16px;
  padding-right: 16px;
  border-radius: 32px;
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01));
  border: 1px solid rgba(255,255,255,0.06);
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 34px;
  min-height: calc(100vh - 120px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  opacity: 0.8;
}

.hero h1, .section h2 {
  margin: 14px 0 0;
  line-height: 1.08;
  letter-spacing: -0.03em;
}
.hero h1 { font-size: clamp(3rem, 6vw, 5.8rem); max-width: 10ch; }
.section h2 { font-size: clamp(2rem, 4vw, 3.3rem); max-width: 14ch; }
.lead, .section-lead { color: var(--muted); line-height: 1.9; }
.lead { max-width: 46rem; font-size: 1.05rem; }
.section-lead { max-width: 52rem; margin-top: 16px; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 28px 0 20px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
  border: 1px solid transparent;
}
.button-primary {
  color: #06111f;
  background: linear-gradient(135deg, #9be7ff, #8b5cf6);
  box-shadow: 0 12px 28px rgba(125, 211, 252, 0.2);
}
.button-secondary {
  border-color: var(--line);
  background: rgba(255,255,255,0.03);
  color: var(--text);
}
.button-large { min-width: 240px; }

.hero-points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  color: var(--muted);
}
.hero-points li {
  position: relative;
  padding-left: 18px;
}
.hero-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.hero-visual {
  display: grid;
  gap: 18px;
  align-self: stretch;
}
.visual-card {
  border: 1px solid rgba(255,255,255,0.1);
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
  box-shadow: var(--shadow);
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.visual-card-large { padding: 18px; min-height: 520px; }
.screen {
  height: 100%;
  border-radius: calc(var(--radius-xl) - 8px);
  background:
    linear-gradient(160deg, rgba(125, 211, 252, 0.2), transparent 36%),
    linear-gradient(180deg, rgba(12, 21, 37, 0.95), rgba(7, 14, 26, 0.9));
  border: 1px solid rgba(255,255,255,0.08);
  overflow: hidden;
}
.screen-header {
  display: flex;
  gap: 8px;
  padding: 16px 16px 0;
}
.screen-header span {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.22);
}
.screen-body {
  display: grid;
  gap: 20px;
  padding: 22px;
}
.metric {
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  font-weight: 800;
  letter-spacing: -0.05em;
  color: #dff6ff;
}
.chart {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  align-items: end;
  min-height: 150px;
}
.chart span {
  display: block;
  height: var(--h);
  border-radius: 18px 18px 8px 8px;
  background: linear-gradient(180deg, rgba(125, 211, 252, 0.95), rgba(167, 139, 250, 0.74));
}
.photo-panel {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 12px;
  min-height: 160px;
}
.photo-shape {
  border-radius: 24px;
  background:
    radial-gradient(circle at 30% 30%, rgba(255,255,255,0.28), transparent 22%),
    linear-gradient(135deg, rgba(52, 211, 153, 0.36), rgba(125, 211, 252, 0.18)),
    linear-gradient(180deg, rgba(255,255,255,0.1), rgba(255,255,255,0.03));
}
.photo-shape.alt {
  background:
    radial-gradient(circle at 70% 28%, rgba(255,255,255,0.24), transparent 20%),
    linear-gradient(135deg, rgba(167, 139, 250, 0.36), rgba(125, 211, 252, 0.14));
}
.visual-card-small {
  padding: 18px 20px;
  background: rgba(255,255,255,0.05);
}
.visual-card-small p { margin: 0 0 8px; color: var(--muted); }
.visual-card-small strong { font-size: 1.05rem; }

.section-head { margin-bottom: 28px; }
.problem-grid,
.solution-grid,
.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.info-card,
.feature-card,
.trust-card,
.timeline-item,
.benefit-item {
  padding: 22px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,0.08);
  background: var(--card);
}
.info-card h3,
.feature-card h3,
.trust-card h3,
.benefit-item h3,
.timeline-item h3 { margin: 0 0 10px; }
.info-card p,
.feature-card p,
.trust-card p,
.benefit-item p,
.timeline-item p { margin: 0; color: var(--muted); line-height: 1.8; }

.feature-card { position: relative; overflow: hidden; }
.feature-index {
  display: inline-flex;
  margin-bottom: 16px;
  color: var(--accent);
  font-weight: 700;
}

.benefit-list {
  display: grid;
  gap: 16px;
}
.benefit-item {
  display: grid;
  grid-template-columns: 52px 1fr;
  align-items: start;
  gap: 18px;
}
.benefit-item strong {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(125, 211, 252, 0.18), rgba(167, 139, 250, 0.18));
  color: var(--accent);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.timeline-item span {
  display: inline-flex;
  margin-bottom: 12px;
  color: var(--accent-3);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.cta-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 30px;
  border-radius: 30px;
  border: 1px solid rgba(255,255,255,0.08);
  background:
    radial-gradient(circle at top right, rgba(125, 211, 252, 0.18), transparent 26%),
    linear-gradient(135deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
}

.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .hero, .problem-grid, .solution-grid, .trust-grid, .timeline, .cta-section {
    grid-template-columns: 1fr;
  }
  .hero { min-height: auto; }
  .cta-section { display: grid; }
}

@media (max-width: 720px) {
  .page-shell { width: min(calc(100% - 20px), var(--max)); }
  .topbar {
    border-radius: 24px;
    padding: 12px 14px;
  }
  .topnav { display: none; }
  .section { padding: 54px 0; }
  .section-muted { margin: 0; }
  .hero h1 { font-size: clamp(2.5rem, 13vw, 4rem); }
  .section h2 { font-size: clamp(1.8rem, 9vw, 2.6rem); }
  .visual-card-large { min-height: 420px; }
  .photo-panel { grid-template-columns: 1fr; }
  .benefit-item { grid-template-columns: 1fr; }
  .benefit-item strong { width: 46px; height: 46px; }
}