:root {
  color-scheme: dark;
  --ink: #f7f8ff;
  --muted: #b7bdd7;
  --navy: #05091d;
  --navy-2: #0b1230;
  --card: rgba(15, 23, 58, 0.78);
  --line: rgba(255, 255, 255, 0.12);
  --cyan: #22d3ee;
  --pink: #ff4fa3;
  --yellow: #ffd84d;
  --max: 1120px;
  font-family: Inter, "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 15% 10%, rgba(34, 211, 238, 0.14), transparent 32rem),
    radial-gradient(circle at 85% 30%, rgba(255, 79, 163, 0.12), transparent 28rem),
    var(--navy);
  line-height: 1.75;
}
a { color: inherit; }
img { max-width: 100%; display: block; }
.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: 1rem; top: 1rem; z-index: 20; padding: .75rem 1rem; background: white; color: #111; }
.wrap { width: min(calc(100% - 32px), var(--max)); margin-inline: auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(5, 9, 29, .86);
  backdrop-filter: blur(16px);
}
.nav { min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; letter-spacing: .03em; }
.brand img { width: 42px; height: 42px; border-radius: 12px; }
.nav-links { display: flex; align-items: center; gap: 18px; font-size: .92rem; }
.nav-links a { color: var(--muted); text-decoration: none; }
.nav-links a:hover { color: white; }

.hero { padding: 42px 0 36px; }
.hero-grid { display: grid; gap: 28px; align-items: center; }
.eyebrow { color: var(--cyan); font-weight: 800; font-size: .86rem; letter-spacing: .12em; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.25; letter-spacing: -.025em; }
h1 { margin: 12px 0 18px; font-size: clamp(2.45rem, 8vw, 5.25rem); }
h1 span { background: linear-gradient(90deg, var(--cyan), #fff 48%, var(--pink)); -webkit-background-clip: text; color: transparent; }
.lead { max-width: 640px; margin: 0; color: #d8dcf1; font-size: clamp(1.05rem, 2.4vw, 1.28rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 0 22px; border-radius: 999px; border: 1px solid transparent; font-weight: 800; text-decoration: none; }
.button-primary { color: #06101c; background: linear-gradient(110deg, var(--cyan), var(--yellow)); box-shadow: 0 12px 34px rgba(34, 211, 238, .22); }
.button-secondary { border-color: var(--line); background: rgba(255,255,255,.06); }
.hero-note { margin-top: 14px; color: var(--muted); font-size: .85rem; }
.hero-visual { position: relative; overflow: hidden; min-height: 360px; border-radius: 28px; border: 1px solid var(--line); box-shadow: 0 26px 80px rgba(0,0,0,.35); }
.hero-visual img { width: 100%; height: 100%; min-height: 360px; object-fit: cover; object-position: 62% center; }
.hero-badge { position: absolute; left: 18px; bottom: 18px; display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: 16px; background: rgba(5,9,29,.84); border: 1px solid var(--line); backdrop-filter: blur(12px); font-weight: 700; }
.pulse { width: 10px; height: 10px; border-radius: 50%; background: var(--pink); box-shadow: 0 0 0 7px rgba(255,79,163,.18); }

.section { padding: 72px 0; }
.section-alt { border-block: 1px solid var(--line); background: rgba(255,255,255,.025); }
.section-heading { max-width: 720px; margin-bottom: 30px; }
.section-heading h2 { margin: 8px 0 10px; font-size: clamp(1.9rem, 4vw, 3rem); }
.section-heading p { margin: 0; color: var(--muted); }
.grid-3 { display: grid; gap: 16px; }
.card { padding: 24px; border: 1px solid var(--line); border-radius: 22px; background: var(--card); }
.card-num { display: grid; width: 38px; height: 38px; place-items: center; border-radius: 12px; color: #07111f; background: linear-gradient(135deg, var(--cyan), white); font-weight: 900; }
.card h3 { margin: 18px 0 8px; font-size: 1.2rem; }
.card p { margin: 0; color: var(--muted); }
.feature-list { display: grid; gap: 12px; padding: 0; list-style: none; }
.feature-list li { display: flex; gap: 12px; padding: 16px; border-radius: 16px; background: rgba(255,255,255,.045); border: 1px solid var(--line); }
.feature-list li::before { content: "✓"; color: var(--yellow); font-weight: 900; }
.safety { display: grid; gap: 24px; align-items: center; padding: 30px; border-radius: 28px; border: 1px solid rgba(255,216,77,.26); background: linear-gradient(145deg, rgba(255,216,77,.08), rgba(34,211,238,.06)); }
.safety h2 { margin-top: 0; }
.safety p { color: #d8dcf1; }
.status-grid { display: grid; gap: 16px; }
.status { padding: 22px; border: 1px solid var(--line); border-radius: 20px; background: rgba(255,255,255,.04); }
.status strong { display: block; font-size: 1.1rem; }
.status span { color: var(--yellow); font-size: .9rem; }
.faq details { border-top: 1px solid var(--line); padding: 18px 0; }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; font-weight: 800; }
.faq p { color: var(--muted); }
.cta { text-align: center; padding: 38px 22px; border-radius: 28px; border: 1px solid var(--line); background: linear-gradient(135deg, rgba(34,211,238,.11), rgba(255,79,163,.1)); }
.cta h2 { margin-top: 0; }
.site-footer { padding: 32px 0 44px; color: var(--muted); font-size: .88rem; }
.footer-row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 18px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; }
.footer-links a { color: var(--muted); }
.support-main { padding: 56px 0 80px; }
.support-card { max-width: 760px; margin: 0 auto; padding: clamp(24px, 5vw, 48px); border: 1px solid var(--line); border-radius: 28px; background: var(--card); }
.support-card h1 { font-size: clamp(2rem, 6vw, 3.4rem); }
.support-card h2 { margin-top: 34px; }
.contact-box { margin-top: 28px; padding: 20px; border-radius: 18px; background: rgba(255,255,255,.05); border: 1px solid var(--line); }

@media (min-width: 760px) {
  .hero { padding: 72px 0 58px; }
  .hero-grid { grid-template-columns: .9fr 1.1fr; }
  .grid-3, .status-grid { grid-template-columns: repeat(3, 1fr); }
  .safety { grid-template-columns: 1.2fr .8fr; }
  .feature-list { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 620px) {
  .nav-links a:not(.nav-support) { display: none; }
  .hero-visual { min-height: 300px; }
  .hero-visual img { min-height: 300px; }
  .button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}