:root {
  --bg: #081425;
  --bg-soft: #0f1e33;
  --card: rgba(255, 255, 255, 0.06);
  --card-strong: rgba(255, 255, 255, 0.1);
  --border: rgba(255, 255, 255, 0.12);
  --text: #f4f7fb;
  --muted: #b7c2d3;
  --accent: #00e5ff;
  --accent-soft: rgba(0, 229, 255, 0.14);
  --warning: #f5a623;
  --max-width: 1080px;
  --radius: 24px;
  --shadow: 0 24px 64px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "Hiragino Sans",
    "Yu Gothic UI",
    "Segoe UI",
    sans-serif;
  background:
    radial-gradient(circle at top right, rgba(0, 229, 255, 0.12), transparent 28%),
    linear-gradient(180deg, #0a1628 0%, #060d18 55%, #03060d 100%);
  color: var(--text);
  line-height: 1.7;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(6, 13, 24, 0.78);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.18), rgba(245, 166, 35, 0.14));
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--accent);
  font-size: 20px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.nav a {
  color: var(--muted);
  font-size: 0.95rem;
}

.hero {
  padding: 72px 0 40px;
}

.hero-card {
  padding: 36px;
  border-radius: 32px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.04));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 700;
}

.hero h1 {
  margin: 0 0 14px;
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 1.1;
}

.hero p {
  margin: 0;
  max-width: 760px;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 14px;
  border: 1px solid transparent;
  font-weight: 700;
  text-decoration: none;
}

.button-primary {
  background: var(--accent);
  color: #021019;
}

.button-secondary {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border);
  color: var(--text);
}

.section {
  padding: 28px 0;
}

.section h2 {
  margin: 0 0 12px;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
}

.section-intro {
  margin: 0 0 24px;
  color: var(--muted);
}

.grid {
  display: grid;
  gap: 16px;
}

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

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

.card {
  padding: 24px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.card h3 {
  margin: 0 0 10px;
  font-size: 1.15rem;
}

.card p,
.card li {
  color: var(--muted);
}

.card ul,
.policy-list,
.faq-list,
.simple-list {
  margin: 0;
  padding-left: 20px;
}

.lang-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.lang-card {
  padding: 22px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
}

.lang-label {
  display: inline-block;
  margin-bottom: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 700;
}

.steps {
  counter-reset: step;
  display: grid;
  gap: 14px;
}

.step {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 14px;
  align-items: start;
  padding: 18px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 800;
  font-size: 1.1rem;
}

.step h3 {
  margin: 0 0 6px;
}

.step p {
  margin: 0;
  color: var(--muted);
}

.notice {
  padding: 18px 20px;
  border-radius: 20px;
  background: rgba(245, 166, 35, 0.12);
  border: 1px solid rgba(245, 166, 35, 0.22);
  color: #ffe7b5;
}

.notice strong {
  color: #fff6dd;
}

.faq-item + .faq-item,
.policy-section + .policy-section {
  margin-top: 14px;
}

.faq-item h3,
.policy-section h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.faq-item p,
.policy-section p,
.policy-section li {
  margin: 0;
  color: var(--muted);
}

.policy-meta {
  margin-bottom: 24px;
  color: var(--muted);
  font-size: 0.95rem;
}

.footer {
  padding: 48px 0 56px;
  color: var(--muted);
  font-size: 0.95rem;
}

.footer-card {
  padding: 22px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
}

.footer p {
  margin: 0;
}

.muted {
  color: var(--muted);
}

.small {
  font-size: 0.92rem;
}

@media (max-width: 860px) {
  .grid-2,
  .grid-3,
  .lang-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 48px;
  }

  .hero-card,
  .card,
  .lang-card,
  .footer-card {
    padding: 22px;
  }
}

@media (max-width: 560px) {
  .site-header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav {
    gap: 10px;
  }

  .hero-card {
    padding: 20px;
    border-radius: 24px;
  }

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