:root {
  --bg: #06070b;
  --panel: rgba(255, 255, 255, 0.06);
  --panel-strong: rgba(255, 255, 255, 0.1);
  --text: #f5f7fb;
  --muted: #9ea7b8;
  --line: rgba(255, 255, 255, 0.1);
  --accent: #ffffff;
  --accent-dark: #0b0e14;
  --glow: rgba(157, 184, 255, 0.18);
  --glow-strong: rgba(255, 255, 255, 0.22);
  --radius: 24px;
  --radius-lg: 34px;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(90, 113, 255, 0.18), transparent 28%),
    radial-gradient(circle at 85% 15%, rgba(255, 255, 255, 0.08), transparent 18%),
    linear-gradient(180deg, #05060a 0%, #080b12 45%, #05060a 100%);
  font-family: "Inter", "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.08;
  background-image:
    radial-gradient(circle at 20% 20%, rgba(255,255,255,0.6) 0.6px, transparent 0.7px),
    radial-gradient(circle at 80% 60%, rgba(255,255,255,0.4) 0.6px, transparent 0.7px),
    radial-gradient(circle at 40% 80%, rgba(255,255,255,0.4) 0.6px, transparent 0.7px);
  background-size: 22px 22px;
  z-index: 1;
}

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

button {
  font: inherit;
}

.site-header,
main,
.site-footer {
  position: relative;
  z-index: 2;
}

.site-header {
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  backdrop-filter: blur(18px);
  background: rgba(8, 10, 16, 0.58);
  border-bottom: 1px solid var(--line);
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: #05060a;
  background: linear-gradient(135deg, #ffffff 0%, #c7d2ff 100%);
  box-shadow: 0 8px 30px rgba(255,255,255,0.14);
}

.brand-copy h1 {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.1;
  letter-spacing: 0.06em;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 0.68rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.header-cta {
  padding: 11px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--line);
  font-size: 0.83rem;
  font-weight: 700;
  white-space: nowrap;
}

.hero {
  padding: 24px 16px 10px;
}

.hero-inner {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 34px;
  padding: 28px 18px 18px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03)),
    rgba(255,255,255,0.04);
  box-shadow: var(--shadow);
}

.hero-bg {
  position: absolute;
  inset: 0;
}

.hero-inner::before,
.hero-inner::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  filter: blur(12px);
}

.hero-inner::before {
  width: 180px;
  height: 180px;
  right: -40px;
  top: -40px;
  background: radial-gradient(circle, rgba(255,255,255,0.18), transparent 65%);
}

.hero-inner::after {
  width: 160px;
  height: 160px;
  left: -40px;
  bottom: -40px;
  background: radial-gradient(circle, rgba(87, 117, 255, 0.22), transparent 60%);
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.06);
  color: #d7def1;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.hero h2 {
  margin: 0;
  font-size: clamp(2.1rem, 9vw, 4rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
  font-weight: 900;
}

.hero h2 span {
  color: #ffffff;
  text-shadow: 0 0 24px rgba(255,255,255,0.18);
}

.hero-text {
  margin: 16px 0 0;
  color: #dbe2f1;
  font-size: 0.98rem;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 22px;
}

.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 54px;
  border-radius: 18px;
  font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:active {
  transform: scale(0.985);
}

.btn-primary {
  color: #05060a;
  background: linear-gradient(135deg, #ffffff 0%, #c8d4ff 100%);
  box-shadow: 0 12px 30px rgba(255,255,255,0.16);
}

.btn-secondary {
  color: var(--text);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
}

.hero-stats {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.stat-card {
  padding: 16px;
  border-radius: 22px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
}

.stat-kicker {
  display: block;
  margin-bottom: 10px;
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.2em;
}

.stat-card strong {
  display: block;
  font-size: 1.2rem;
  margin-bottom: 4px;
}

.stat-card small {
  color: #d3dbec;
  font-size: 0.88rem;
}

.marquee {
  overflow: hidden;
  padding: 14px 0 0;
}

.marquee-track {
  display: flex;
  gap: 16px;
  width: max-content;
  animation: marquee 20s linear infinite;
  padding: 10px 0;
}

.marquee span {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.04);
  color: #dce4f6;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  white-space: nowrap;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.section {
  padding: 52px 16px 0;
}

.section-head {
  margin-bottom: 18px;
}

.section-head h3 {
  margin: 0;
  font-size: clamp(1.6rem, 6vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.vision-grid,
.benefit-stack,
.faq-list {
  display: grid;
  gap: 14px;
}

.glass-card,
.benefit-card,
.support-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,0.07), rgba(255,255,255,0.03));
  box-shadow: var(--shadow);
}

.glass-card {
  padding: 20px;
}

.card-number {
  display: inline-flex;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  margin-bottom: 16px;
  background: rgba(255,255,255,0.08);
  color: #d9e1f5;
  font-weight: 800;
  font-size: 0.82rem;
}

.glass-card h4,
.benefit-card h4,
.timeline-content h4,
.support-card strong {
  margin: 0 0 10px;
  font-size: 1.18rem;
  letter-spacing: -0.03em;
}

.glass-card p,
.benefit-card p,
.timeline-content p,
.support-copy p,
.support-card span,
.faq-item p,
.fine-note {
  margin: 0;
  color: #d8e0ef;
  line-height: 1.85;
  font-size: 0.95rem;
}

.dark-panel {
  margin-top: 52px;
  padding-bottom: 6px;
}

.benefit-card {
  padding: 20px;
}

.benefit-card.featured {
  background:
    radial-gradient(circle at top right, rgba(255,255,255,0.14), transparent 38%),
    linear-gradient(180deg, rgba(255,255,255,0.12), rgba(255,255,255,0.04));
}

.benefit-topline {
  margin-bottom: 12px;
  color: #cfd8ef;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
}

.fine-note {
  margin-top: 18px;
  padding: 16px 0 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.timeline {
  position: relative;
  display: grid;
  gap: 18px;
  margin-top: 10px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, rgba(255,255,255,0.28), rgba(255,255,255,0.04));
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 16px;
  align-items: start;
}

.timeline-dot {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.08);
  margin-top: 2px;
}

.timeline-item.active .timeline-dot {
  background: linear-gradient(135deg, #ffffff 0%, #cad4ff 100%);
  box-shadow: 0 0 0 7px rgba(255,255,255,0.05);
}

.timeline-content span {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.73rem;
  letter-spacing: 0.16em;
}

.support-panel {
  padding-bottom: 0;
}

.support-copy h3 {
  margin: 0 0 12px;
  font-size: clamp(1.8rem, 7vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.support-card {
  margin-top: 18px;
  padding: 24px 20px;
}

.support-glow {
  position: absolute;
  width: 180px;
  height: 180px;
  right: -50px;
  top: -50px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(255,255,255,0.14), transparent 62%);
}

.support-mini {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
}

.support-card strong {
  display: block;
}

.support-card span {
  display: block;
  margin-bottom: 18px;
}

.btn-full {
  width: 100%;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255,255,255,0.04);
  padding: 0 16px;
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 24px 18px 0;
  position: relative;
  font-weight: 700;
  line-height: 1.6;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 16px;
  font-size: 1.2rem;
  color: var(--muted);
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item p {
  padding: 0 0 18px;
}

.site-footer {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  padding: 56px 16px 24px;
}

.footer-brand {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.footer-text {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.to-top {
  min-width: 68px;
  height: 48px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  background: rgba(255,255,255,0.04);
  cursor: pointer;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

@media (min-width: 768px) {
  .site-header,
  .section,
  .hero,
  .site-footer {
    padding-left: 24px;
    padding-right: 24px;
  }

  .hero-actions {
    flex-direction: row;
  }

  .hero-actions .btn {
    min-width: 200px;
  }

  .hero-stats,
  .vision-grid,
  .benefit-stack,
  .faq-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .support-panel {
    display: grid;
    grid-template-columns: 1.3fr 0.9fr;
    gap: 18px;
    align-items: stretch;
  }

  .support-card {
    margin-top: 0;
  }
}

@media (min-width: 1100px) {
  .site-header,
  .section,
  .hero,
  .site-footer {
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 32px;
    padding-right: 32px;
  }

  .hero-inner {
    padding: 44px;
  }

  .hero-stats,
  .vision-grid,
  .benefit-stack {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .site-header {
    margin-top: 8px;
    border-radius: 22px;
    top: 10px;
  }
}