@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@500;600;700;800&family=Noto+Sans+JP:wght@400;500;700;800&display=swap');

:root {
  --bg: #f7f6f2;
  --bg-soft: #efece3;
  --surface: rgba(255, 255, 255, 0.86);
  --surface-strong: #ffffff;
  --surface-tint: #f5f8fb;
  --ink: #112033;
  --ink-soft: #42556b;
  --ink-faint: #68788b;
  --line: rgba(17, 32, 51, 0.12);
  --line-strong: rgba(17, 32, 51, 0.2);
  --accent: #0f766e;
  --accent-strong: #0b5f58;
  --accent-soft: rgba(15, 118, 110, 0.12);
  --navy: #16324f;
  --navy-soft: #eaf0f7;
  --warning: #91631f;
  --warning-soft: rgba(145, 99, 31, 0.12);
  --danger: #8f3a36;
  --danger-soft: rgba(143, 58, 54, 0.1);
  --coincheck: #1097c9;
  --binance: #d2a200;
  --mexc: #1945ff;
  --bitget: #12b6c8;
  --hyperliquid: #217a67;
  --shadow: 0 12px 40px rgba(18, 32, 48, 0.08);
  --shadow-soft: 0 8px 24px rgba(18, 32, 48, 0.05);
  --radius: 22px;
  --radius-sm: 14px;
  --container: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Noto Sans JP", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(15,118,110,0.08), transparent 32%),
    radial-gradient(circle at top right, rgba(22,50,79,0.08), transparent 28%),
    linear-gradient(180deg, #f8f6f1 0%, #f4f2ec 100%);
  line-height: 1.75;
}
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, textarea { font: inherit; }
ul, ol { padding-left: 1.25rem; }
.container { width: min(calc(100% - 2rem), var(--container)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
  background: rgba(247, 246, 242, 0.88);
  border-bottom: 1px solid var(--line);
}
.site-header__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 76px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  font-family: "Manrope", sans-serif;
  font-weight: 800;
  letter-spacing: -0.03em;
}
.brand__mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--navy), #295986);
  color: #fff;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-soft);
}
.brand small {
  display: block;
  color: var(--ink-faint);
  font-size: 0.77rem;
  letter-spacing: 0;
  font-weight: 700;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}
.site-nav a {
  padding: 0.35rem 0;
  color: var(--ink-soft);
  font-weight: 700;
  font-size: 0.95rem;
}
.site-nav a.is-active,
.site-nav a:hover { color: var(--ink); }
.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 12px;
  padding: 0.55rem 0.8rem;
}

.top-strip {
  background: var(--navy);
  color: rgba(255,255,255,0.9);
  font-size: 0.88rem;
}
.top-strip__row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  align-items: center;
  justify-content: space-between;
  padding: 0.7rem 0;
}

.page-shell { padding: 2rem 0 5rem; }
.hero {
  padding: 3rem 0 1.5rem;
}
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.9fr);
  gap: 1.5rem;
}
.panel {
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hero__lead {
  padding: 2.2rem;
  background:
    linear-gradient(150deg, rgba(255,255,255,0.96), rgba(247,251,250,0.93)),
    var(--surface);
}
.hero__eyebrow,
.section__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: var(--navy-soft);
  color: var(--navy);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}
.hero h1,
.section h2,
.page-title {
  font-family: "Manrope", sans-serif;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin: 0;
}
.hero h1 { font-size: clamp(2.2rem, 5vw, 4.4rem); margin-top: 1rem; max-width: 12ch; }
.hero p { color: var(--ink-soft); font-size: 1.04rem; margin: 1rem 0 0; max-width: 58ch; }
.hero__actions,
.button-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.5rem; }

.hero__aside {
  padding: 1.8rem;
  background:
    radial-gradient(circle at top right, rgba(15,118,110,0.16), transparent 42%),
    linear-gradient(180deg, #19324f, #12253b);
  color: rgba(255,255,255,0.92);
}
.hero__aside h2 {
  font-size: 1.25rem;
  letter-spacing: -0.03em;
  margin: 0;
}
.hero__aside p { color: rgba(255,255,255,0.78); margin: 0.7rem 0 0; }

.metric-grid,
.card-grid,
.choice-grid,
.review-grid,
.footer-grid {
  display: grid;
  gap: 1rem;
}
.metric-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: 1.5rem; }
.metric {
  padding: 1rem 1.1rem;
  border-radius: var(--radius-sm);
  background: var(--surface-strong);
  border: 1px solid var(--line);
}
.metric strong { display: block; font-size: 1.35rem; font-family: "Manrope", sans-serif; }
.metric span { color: var(--ink-faint); font-size: 0.88rem; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 50px;
  padding: 0.9rem 1.2rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 800;
  font-size: 0.96rem;
}
.button--primary { background: var(--accent); color: #fff; }
.button--primary:hover { background: var(--accent-strong); }
.button--secondary { background: var(--surface-strong); color: var(--ink); border-color: var(--line); }
.button--ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,0.22); }
.button--mexc { background: var(--mexc); color: #fff; }
.button--bitget { background: var(--bitget); color: #072731; }
.button--coincheck { background: var(--coincheck); color: #fff; }
.button--binance { background: var(--binance); color: #232006; }
.button--hyperliquid { background: var(--hyperliquid); color: #fff; }

.section {
  padding: 1rem 0 0;
}
.section__head {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  margin-bottom: 1.2rem;
}
.section__head p { max-width: 64ch; color: var(--ink-soft); margin: 0; }
.card-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card {
  display: block;
  padding: 1.4rem;
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: 18px;
  box-shadow: var(--shadow-soft);
}
.card--link {
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}
.card--link:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(18, 32, 48, 0.1);
  border-color: rgba(15, 118, 110, 0.22);
}
.card h3 {
  margin: 0.2rem 0 0.55rem;
  font-family: "Manrope", sans-serif;
  letter-spacing: -0.03em;
  font-size: 1.18rem;
}
.card p { margin: 0; color: var(--ink-soft); }
.card__tag {
  display: inline-block;
  padding: 0.28rem 0.6rem;
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--navy);
  font-size: 0.76rem;
  font-weight: 800;
}
.card__meta {
  margin-top: 1rem;
  color: var(--ink-faint);
  font-size: 0.9rem;
}

.choice-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.choice-card {
  display: block;
  padding: 1.25rem;
  border-radius: 18px;
  background: var(--surface-strong);
  border: 1px solid var(--line);
}
.choice-card--link {
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}
.choice-card--link:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(18, 32, 48, 0.08);
  border-color: rgba(15, 118, 110, 0.22);
}
.choice-card strong {
  display: block;
  font-family: "Manrope", sans-serif;
  font-size: 1.08rem;
  margin-bottom: 0.45rem;
}
.choice-card p { margin: 0; color: var(--ink-soft); font-size: 0.92rem; }

.table-wrap {
  overflow-x: auto;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.84);
  box-shadow: var(--shadow-soft);
}
table { width: 100%; border-collapse: collapse; min-width: 760px; }
th, td {
  padding: 1rem 1rem;
  text-align: left;
  border-top: 1px solid rgba(17, 32, 51, 0.08);
  vertical-align: top;
}
thead th {
  border-top: none;
  background: #f1f5f7;
  color: var(--ink);
  font-size: 0.9rem;
}
tbody tr:nth-child(odd) td { background: rgba(255,255,255,0.65); }
.table-note { margin: 0.8rem 0 0; font-size: 0.9rem; color: var(--ink-faint); }

.pathway,
.notice,
.cta-band,
.editorial-block,
.faq,
.footer-note,
.contact-card,
.profile-card {
  padding: 1.3rem 1.4rem;
  border-radius: 18px;
  background: rgba(255,255,255,0.82);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
}
.notice--warning { background: linear-gradient(180deg, #fffaf3, #fff); border-color: rgba(145, 99, 31, 0.18); }
.notice--danger { background: linear-gradient(180deg, #fff4f2, #fff); border-color: rgba(143, 58, 54, 0.18); }
.notice--mint { background: linear-gradient(180deg, #f2fbf8, #fff); border-color: rgba(15, 118, 110, 0.18); }
.notice h3,
.cta-band h3,
.profile-card h3,
.contact-card h3 { margin: 0 0 0.35rem; font-family: "Manrope", sans-serif; font-size: 1.15rem; }
.notice p,
.cta-band p,
.profile-card p,
.contact-card p,
.editorial-block p { margin: 0; color: var(--ink-soft); }

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.85fr);
  gap: 1.25rem;
}
.pill-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}
.pill-list li {
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  background: var(--navy-soft);
  color: var(--navy);
  font-weight: 700;
  font-size: 0.84rem;
}

.review-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.review-card {
  padding: 1.5rem;
  background: rgba(255,255,255,0.88);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow-soft);
}
.review-card__top {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
}
.review-card h3 { margin: 0; font-family: "Manrope", sans-serif; font-size: 1.4rem; }
.review-card__badge {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.32rem 0.62rem;
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--navy);
  font-size: 0.78rem;
  font-weight: 800;
}
.review-card__score {
  min-width: 88px;
  text-align: center;
  border-radius: 16px;
  background: linear-gradient(180deg, #19324f, #21456c);
  color: #fff;
  padding: 0.8rem;
}
.review-card__score strong {
  display: block;
  font-size: 1.7rem;
  line-height: 1;
  font-family: "Manrope", sans-serif;
}
.review-card__score span { font-size: 0.84rem; color: rgba(255,255,255,0.78); }
.review-card p { color: var(--ink-soft); margin: 0.8rem 0 0; }
.review-card ul { margin: 1rem 0 0; color: var(--ink-soft); }

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  margin-bottom: 1.15rem;
  color: var(--ink-faint);
  font-size: 0.9rem;
}
.breadcrumbs span { opacity: 0.58; }

.article {
  padding: 1rem 0 0;
}
.article__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.24fr) minmax(280px, 0.76fr);
  gap: 1.25rem;
}
.article__body,
.article__side {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.article__body .panel,
.article__side .panel { padding: 1.5rem; }
.article__body h2,
.article__body h3 {
  font-family: "Manrope", sans-serif;
  letter-spacing: -0.03em;
  margin: 0 0 0.5rem;
}
.article__body h2 { font-size: 1.55rem; }
.article__body h3 { font-size: 1.12rem; }
.article__body p,
.article__body li,
.article__side p,
.article__side li { color: var(--ink-soft); }

.checklist,
.faq-list,
.link-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.checklist li,
.link-list li {
  padding: 0.75rem 0;
  border-top: 1px solid rgba(17, 32, 51, 0.08);
}
.checklist li:first-child,
.link-list li:first-child { border-top: none; }

.faq-item {
  border-top: 1px solid rgba(17, 32, 51, 0.08);
}
.faq-item:first-child { border-top: none; }
.faq-question {
  width: 100%;
  text-align: left;
  padding: 1rem 0;
  background: none;
  border: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--ink);
  font-weight: 700;
}
.faq-question[aria-expanded="true"] span:last-child { transform: rotate(45deg); }
.faq-answer {
  display: none;
  padding: 0 0 1rem;
  color: var(--ink-soft);
}
.faq-item.is-open .faq-answer { display: block; }

.site-footer {
  margin-top: 4rem;
  padding: 3rem 0 2rem;
  border-top: 1px solid var(--line);
  background: rgba(255,255,255,0.55);
}
.footer-grid {
  grid-template-columns: 1.2fr 1fr 1fr 1fr;
}
.footer-grid h3 {
  margin: 0 0 0.7rem;
  font-family: "Manrope", sans-serif;
  font-size: 1rem;
}
.footer-grid p,
.footer-grid li { color: var(--ink-soft); margin: 0; }
.footer-grid ul { margin: 0; }
.footer-note { margin-top: 1rem; }

.floating-cta {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  max-width: 340px;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 0.9rem;
  padding: 0.95rem 1rem;
  border-radius: 18px;
  background: rgba(17, 32, 51, 0.94);
  color: #fff;
  box-shadow: 0 20px 50px rgba(17,32,51,0.28);
}
.floating-cta strong { display: block; font-family: "Manrope", sans-serif; }
.floating-cta small { display: block; color: rgba(255,255,255,0.7); }
.floating-cta.is-visible { display: flex; }

@media (max-width: 1080px) {
  .hero__grid,
  .split,
  .article__layout,
  .footer-grid { grid-template-columns: 1fr; }
  .card-grid,
  .choice-grid,
  .review-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .site-nav {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    padding: 1rem;
    background: rgba(247, 246, 242, 0.98);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-soft);
    flex-direction: column;
    align-items: flex-start;
  }
  .site-nav.is-open { display: flex; }
  .nav-toggle { display: inline-flex; }
  .hero { padding-top: 2rem; }
  .hero__lead,
  .hero__aside,
  .review-card,
  .article__body .panel,
  .article__side .panel { padding: 1.2rem; }
  .metric-grid,
  .card-grid,
  .choice-grid,
  .review-grid,
  .footer-grid { grid-template-columns: 1fr; }
  .button { width: 100%; }
  .floating-cta {
    left: 0.75rem;
    right: 0.75rem;
    bottom: 0.75rem;
    max-width: none;
  }
}