:root {
  --navy: #123a5a;
  --navy-2: #1c4e73;
  --blue: #2e86c1;
  --blue-soft: #e8f1f8;
  --bg: #f3f5f7;
  --panel: #ffffff;
  --line: #dbe3ea;
  --text: #1c2b36;
  --muted: #6b7c8c;
  --green: #2e8b74;
  --green-soft: #e6f4f0;
  --gold: #a67c00;
  --shadow: 0 1px 2px rgba(16, 42, 67, .06), 0 12px 32px rgba(16, 42, 67, .08);
  --font: "Yu Gothic UI", "Yu Gothic", "Meiryo", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { margin: 0; line-height: 1.4; letter-spacing: .01em; }

.wrap { width: min(1100px, 100% - 40px); margin: 0 auto; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: var(--navy);
  font-size: 15px;
}

.brand:hover { text-decoration: none; }

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 9px;
  background: var(--navy);
  color: #fff;
  font-size: 13px;
  letter-spacing: .04em;
}

.site-nav { display: flex; gap: 18px; font-size: 13px; font-weight: 700; }
.site-nav a { color: var(--navy); }

/* Hero */
.hero {
  padding: 64px 0 56px;
  background:
    radial-gradient(900px 360px at 85% -10%, rgba(46, 134, 193, .16), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--line);
}

.hero .wrap {
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 40px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 14px;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--blue-soft);
  color: var(--navy-2);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .06em;
}

.hero h1 {
  font-size: clamp(26px, 3.6vw, 40px);
  color: var(--navy);
  font-weight: 800;
  margin-bottom: 18px;
}

.lead {
  margin: 0 0 24px;
  font-size: 14.5px;
  color: #3c4d5c;
  max-width: 46em;
}

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 22px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 800;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
}

.btn:hover { text-decoration: none; transform: translateY(-1px); }

.btn-primary {
  background: var(--navy);
  color: #fff;
  box-shadow: 0 8px 20px rgba(18, 58, 90, .22);
}

.btn-primary:hover { background: var(--navy-2); }

.btn-ghost {
  background: #fff;
  color: var(--navy);
  border-color: var(--line);
}

.btn-ghost:hover { border-color: var(--blue); background: var(--blue-soft); }

.btn-sm { padding: 10px 16px; font-size: 13px; }

.micro {
  margin: 16px 0 0;
  font-size: 12px;
  color: var(--muted);
}

.hero-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px 22px 18px;
  box-shadow: var(--shadow);
}

.hero-card h2 {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: .06em;
  margin-bottom: 12px;
}

.checklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }

.checklist li {
  position: relative;
  padding-left: 26px;
  font-size: 13.5px;
  font-weight: 600;
  color: #2b3d4c;
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--green-soft);
  border: 1px solid rgba(46, 139, 116, .35);
}

.checklist li::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  width: 6px;
  height: 3px;
  border-left: 2px solid var(--green);
  border-bottom: 2px solid var(--green);
  transform: rotate(-45deg);
}

/* Sections */
section.block { padding: 56px 0; }
section.block.alt { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.section-head { margin-bottom: 28px; }
.section-head h2 { font-size: clamp(21px, 2.4vw, 28px); color: var(--navy); font-weight: 800; }
.section-head p { margin: 8px 0 0; color: var(--muted); font-size: 13.5px; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px;
  box-shadow: 0 1px 2px rgba(16, 42, 67, .04);
}

.card .num {
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--blue-soft);
  color: var(--navy-2);
  font-weight: 800;
  font-size: 13px;
  margin-bottom: 12px;
}

.card h3 { font-size: 15.5px; color: var(--navy); margin-bottom: 8px; }
.card p { margin: 0; color: #46596a; font-size: 13px; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; counter-reset: step; border-radius: 14px; overflow: hidden; border: 1px solid var(--line); background: #fff; }
.step { padding: 24px; border-right: 1px solid var(--line); }
.step:last-child { border-right: none; }
.step .step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--navy);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  margin-bottom: 12px;
}
.step h3 { font-size: 15px; color: var(--navy); margin-bottom: 6px; }
.step p { margin: 0; font-size: 12.5px; color: var(--muted); }

/* Scenario cards */
.scenario-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }

.scenario {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px;
  box-shadow: 0 1px 2px rgba(16, 42, 67, .04);
}

.scenario h3 { font-size: 16px; color: var(--navy); }
.scenario p { margin: 0; color: #46596a; font-size: 13px; flex: 1; }
.scenario .btn { align-self: flex-start; margin-top: 8px; }

.tag {
  display: inline-block;
  align-self: flex-start;
  padding: 2px 10px;
  border-radius: 999px;
  background: var(--green-soft);
  color: var(--green);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .04em;
}

/* FAQ */
.faq { display: grid; gap: 10px; max-width: 820px; }

.faq details {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0 18px;
}

.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 0;
  font-weight: 700;
  color: var(--navy);
  font-size: 14px;
  position: relative;
  padding-right: 28px;
}

.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "＋";
  position: absolute;
  right: 0;
  top: 14px;
  color: var(--muted);
  font-weight: 700;
}
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 0 0 16px; font-size: 13px; color: #46596a; }

/* Stats & fee table */
.stat-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 22px;
}

.stat {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px 22px;
  box-shadow: 0 1px 2px rgba(16, 42, 67, .04);
}

.stat-label { display: block; font-size: 12px; font-weight: 700; color: var(--muted); }
.stat-value { display: block; font-size: 28px; font-weight: 800; color: var(--navy); line-height: 1.4; margin: 2px 0; }
.stat-value small { font-size: 13px; color: var(--muted); margin-left: 2px; }
.stat-note { display: block; font-size: 11.5px; color: var(--muted); }

.table-wrap { overflow-x: auto; }

.fee-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  font-size: 13px;
}

.fee-table th,
.fee-table td {
  padding: 12px 14px;
  border-bottom: 1px solid #eef2f6;
  text-align: left;
}

.fee-table th {
  background: var(--blue-soft);
  color: var(--navy);
  font-size: 12px;
  font-weight: 800;
}

.fee-table td.num { text-align: right; font-weight: 700; color: var(--navy); }
.fee-table tr:last-child td { border-bottom: none; }

/* CTA band */
.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 22px;
  padding: 24px 26px;
  border-radius: 16px;
  background: var(--navy);
  color: #fff;
  box-shadow: 0 10px 26px rgba(18, 58, 90, .22);
}

.cta-band h3 { margin: 0 0 4px; font-size: 17px; color: #fff; }
.cta-band p { margin: 0; font-size: 12.5px; color: #cfe0ee; }
.cta-band .cta-row { gap: 10px; }
.cta-band .btn-primary { background: #fff; color: var(--navy); box-shadow: none; }
.cta-band .btn-primary:hover { background: #eaf2f9; }
.cta-band .btn-ghost { background: rgba(255, 255, 255, .1); color: #fff; border-color: rgba(255, 255, 255, .4); }
.cta-band .btn-ghost:hover { background: rgba(255, 255, 255, .2); }

/* Notice */
.notice {
  border: 1px solid #f0d9a8;
  background: #fff9ec;
  border-radius: 12px;
  padding: 20px 22px;
  font-size: 12px;
  color: #6b5a2e;
  line-height: 1.85;
}
.notice strong { color: #5a4a1e; }

/* Footer */
.site-footer {
  padding: 40px 0 56px;
  border-top: 1px solid var(--line);
  background: #fff;
  font-size: 12px;
  color: var(--muted);
}
.site-footer .wrap { display: grid; gap: 14px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; font-weight: 700; }
.footer-links a { color: var(--navy); }

@media (max-width: 640px) {
  .brand { font-size: 0; gap: 0; }
  .brand-mark { font-size: 11px; }
  .site-nav { gap: 10px; font-size: 11.5px; }
}

@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 28px; }
  .grid-3 { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .step { border-right: none; border-bottom: 1px solid var(--line); }
  .step:last-child { border-bottom: none; }
  .scenario-grid { grid-template-columns: 1fr; }
  .site-nav { gap: 12px; font-size: 12px; }
  section.block { padding: 40px 0; }
}