:root {
  --ink: #1c1916;
  --ink-soft: #4a433c;
  --paper: #efe6d6;
  --paper-2: #f7f1e6;
  --rule: #cfc3ae;
  --harbor: #163a36;
  --harbor-deep: #0e2623;
  --signal: #e24a1a;
  --signal-ink: #fffaf4;
  --gold: #c4a574;
  --tap: 48px;
  --max: 40rem;
  --font-display: "Shippori Mincho", "Hiragino Mincho ProN", serif;
  --font-ui: "Noto Sans JP", "Hiragino Sans", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 17px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(1200px 400px at 0% -10%, rgba(22, 58, 54, 0.08), transparent 60%),
    var(--paper);
  font-family: var(--font-ui);
  line-height: 1.75;
  letter-spacing: 0.01em;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--harbor);
}

a:hover {
  color: var(--signal);
}

.skip {
  position: absolute;
  left: -999px;
  top: 0;
}

.skip:focus {
  left: 1rem;
  z-index: 20;
  background: #fff;
  padding: 0.5rem 1rem;
}

.pr-bar {
  background: var(--harbor-deep);
  color: #efe6d6;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-align: center;
  padding: 0.45rem 1rem;
}

.pr-bar strong {
  color: #fff;
  font-weight: 700;
}

.site-header {
  background: var(--harbor);
  color: var(--paper);
  padding: 0.85rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  color: inherit;
  text-decoration: none;
  display: flex;
  align-items: baseline;
  gap: 0.65rem;
  min-height: var(--tap);
}

.brand:hover {
  color: inherit;
}

.brand-mark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.12em;
}

.brand-kana {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  opacity: 0.8;
}

.nav-toggle {
  width: var(--tap);
  height: var(--tap);
  border: 1px solid var(--gold);
  background: transparent;
  color: var(--paper);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 1.15rem;
  height: 1.5px;
  background: currentColor;
}

.nav {
  display: none;
  background: var(--harbor-deep);
  padding: 0.5rem 1rem 1rem;
}

.nav.is-open {
  display: block;
}

.nav a {
  display: flex;
  align-items: center;
  min-height: var(--tap);
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid rgba(239, 230, 214, 0.12);
  font-size: 0.95rem;
}

.nav a[aria-current="page"] {
  color: var(--gold);
}

.wrap {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.hero {
  padding: 2.4rem 0 1.6rem;
  border-bottom: 1px solid var(--rule);
}

.kicker {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--signal);
  font-weight: 700;
  margin: 0 0 0.7rem;
}

.hero h1,
.page-head h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.7rem, 6vw, 2.25rem);
  line-height: 1.35;
  margin: 0 0 1rem;
}

.lede {
  margin: 0 0 1.4rem;
  color: var(--ink-soft);
}

.cta-row {
  display: grid;
  gap: 0.75rem;
}

.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: var(--tap);
  padding: 0.85rem 1.1rem;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.04em;
  border: 1px solid transparent;
}

.btn-signal {
  background: var(--signal);
  color: var(--signal-ink);
}

.btn-signal:hover {
  background: #c63d14;
  color: var(--signal-ink);
}

.btn-harbor {
  background: var(--harbor);
  color: var(--paper);
}

.btn-harbor:hover {
  background: var(--harbor-deep);
  color: var(--paper);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}

.btn-ghost:hover {
  background: var(--ink);
  color: var(--paper);
}

.note {
  font-size: 0.82rem;
  color: var(--ink-soft);
  margin: 0.9rem 0 0;
}

.section {
  padding: 2rem 0;
  border-bottom: 1px solid var(--rule);
}

.section h2 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin: 0 0 1rem;
}

.section p {
  margin: 0 0 1rem;
}

.cards {
  display: grid;
  gap: 0.85rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.card {
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-left: 4px solid var(--harbor);
  padding: 1rem 1rem 1.05rem;
  display: grid;
  gap: 0.35rem;
}

.card .num {
  font-family: var(--font-display);
  color: var(--signal);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
}

.card h3 {
  margin: 0;
  font-size: 1.05rem;
}

.card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.card a {
  display: inline-flex;
  align-items: center;
  min-height: 2.6rem;
  font-weight: 700;
  text-decoration: none;
}

.compare {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  background: var(--paper-2);
}

.compare th,
.compare td {
  border: 1px solid var(--rule);
  padding: 0.85rem 0.75rem;
  text-align: left;
  vertical-align: top;
}

.compare th {
  background: var(--harbor);
  color: var(--paper);
  font-weight: 700;
  width: 34%;
}

.page-head {
  padding: 2rem 0 0.4rem;
}

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

.legal {
  font-size: 0.92rem;
}

.legal h2 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 1.6rem 0 0.6rem;
}

.site-footer {
  background: var(--harbor-deep);
  color: #d8d0c2;
  padding: 2rem 0 2.4rem;
  font-size: 0.86rem;
}

.site-footer a {
  color: #efe6d6;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.1rem;
  margin: 0 0 1rem;
}

.footer-nav a {
  min-height: 2.5rem;
  display: inline-flex;
  align-items: center;
}

.disclaimer {
  margin: 0;
  line-height: 1.7;
}

@media (min-width: 720px) {
  .nav-toggle {
    display: none;
  }

  .site-header {
    padding-inline: max(1.5rem, calc(50% - 20rem));
  }

  .nav {
    display: flex;
    gap: 1.25rem;
    background: transparent;
    padding: 0;
  }

  .nav a {
    border: 0;
    min-height: var(--tap);
  }

  .cta-row {
    grid-template-columns: 1fr 1fr;
  }
}