:root {
  --ink: #17243d;
  --muted: #5d6778;
  --paper: #f7f4ec;
  --surface: #fffdf8;
  --line: #d9d6cc;
  --navy: #17365f;
  --teal: #0c6b67;
  --teal-soft: #dff1ed;
  --amber: #c66b24;
  --amber-soft: #f8e7d6;
  --blue-soft: #e7eef7;
  --shadow: 0 20px 50px rgba(23, 36, 61, 0.08);
  --radius-lg: 28px;
  --radius-md: 18px;
  --max: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", "Noto Sans JP", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.8;
}
a { color: var(--navy); text-underline-offset: .2em; }
a:hover { color: var(--teal); }
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible, [tabindex="0"]:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 2px;
  box-shadow: 0 0 0 6px #7b2f00;
}
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: -9999px; top: 8px; z-index: 20; }
.skip-link:focus { left: 12px; padding: 8px 14px; background: #fff; }
.site-header { border-bottom: 1px solid rgba(23,54,95,.14); background: rgba(247,244,236,.96); }
.header-inner, .container { width: min(calc(100% - 32px), var(--max)); margin-inline: auto; }
.header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; gap: 12px; align-items: center; color: var(--ink); text-decoration: none; font-weight: 800; letter-spacing: .02em; }
.brand-mark { width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center; background: var(--navy); color: #fff; font-size: 14px; }
.header-nav { display: flex; gap: 20px; font-size: 14px; }
.header-nav a { text-decoration: none; font-weight: 700; }
.hero, .page-hero { padding: 74px 0 34px; }
.eyebrow { color: var(--teal); font-size: 14px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 54px; align-items: end; }
h1, h2, h3 { line-height: 1.35; letter-spacing: -.02em; }
h1 { margin: 14px 0 22px; font-size: clamp(2.2rem, 5vw, 4.6rem); }
h2 { margin: 0 0 18px; font-size: clamp(1.65rem, 3vw, 2.5rem); }
h3 { margin: 0 0 10px; font-size: 1.2rem; }
.lead { margin: 0; max-width: 44rem; color: var(--muted); font-size: 1.1rem; }
.notice { padding: 22px; border: 1px solid #b9c9c4; border-radius: var(--radius-md); background: var(--teal-soft); }
.notice strong { display: block; margin-bottom: 5px; color: var(--teal); }
.choice-section { padding: 32px 0 76px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.section-heading p { max-width: 36rem; margin: 0; color: var(--muted); }
.choice-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.choice-card { position: relative; min-height: 310px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow); display: flex; flex-direction: column; }
.choice-card:nth-child(2) { transform: translateY(14px); }
.choice-card:nth-child(3) { transform: translateY(28px); }
.step { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 50%; background: var(--blue-soft); color: var(--navy); font-weight: 900; }
.choice-card p { color: var(--muted); }
.choice-card a { margin-top: auto; font-weight: 800; text-decoration-thickness: 2px; }
.manual { margin-top: 62px; padding: 30px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; display: grid; grid-template-columns: auto 1fr; gap: 20px; }
.manual-badge { width: 54px; height: 54px; display: grid; place-items: center; border-radius: 17px; background: var(--amber-soft); color: var(--amber); font-weight: 900; }
.site-footer { margin-top: 72px; padding: 38px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.footer-inner { display: flex; justify-content: space-between; gap: 24px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; }
.footer-note { margin-top: 18px; }
.page-hero { background: linear-gradient(135deg, rgba(231,238,247,.65), rgba(247,244,236,0)); }
.page-hero h1 { max-width: 900px; font-size: clamp(2.15rem, 5vw, 4rem); }
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin: 28px 0 0; padding: 0; list-style: none; }
.hero-tags li { padding: 7px 13px; border: 1px solid #adc6c0; border-radius: 999px; background: var(--teal-soft); color: var(--teal); font-size: 14px; font-weight: 800; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; color: var(--muted); font-size: 13px; }
.breadcrumb a { color: inherit; }
.content-stack { display: grid; gap: 72px; padding-top: 54px; }
.content-stack section { min-width: 0; }
.section-kicker, .card-kicker { margin: 0 0 8px; color: var(--teal); font-weight: 900; font-size: 12px; letter-spacing: .12em; }
.info-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.info-card { min-height: 240px; padding: 26px; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); box-shadow: var(--shadow); }
.info-card p { color: var(--muted); }
.info-card .text-link { margin-top: auto; font-weight: 800; }
.callout { padding: 24px 26px; border: 1px solid; border-radius: var(--radius-md); }
.callout strong { display: block; margin-bottom: 4px; }
.callout p { margin: 0; }
.callout-calm { border-color: #b9c9c4; background: var(--teal-soft); }
.callout-warn { border-color: #e3b98f; background: var(--amber-soft); }
.step-list { display: grid; gap: 14px; padding: 0; list-style: none; }
.step-list li { display: grid; grid-template-columns: 64px 1fr; gap: 20px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.step-list li > span { color: var(--amber); font-weight: 900; font-size: 1.4rem; }
.step-list p, .product-summary p, .fit-grid p { margin: 0; color: var(--muted); }
.split-section, .product-summary, .fit-grid, .about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: stretch; }
.metric-card, .fact-stamp { padding: 28px; border-radius: var(--radius-lg); background: var(--navy); color: #fff; display: flex; flex-direction: column; gap: 12px; }
.metric-card strong { font-size: 2rem; }
.metric-card a { color: #fff; }
.fact-stamp strong { font-size: 1.5rem; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); }
.table-wrap:focus-visible { border-color: #7b2f00; }
table { width: 100%; border-collapse: collapse; min-width: 720px; }
th, td { padding: 15px 17px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
thead th { background: var(--blue-soft); font-size: 13px; }
tbody th { width: 20%; }
.status { display: inline-block; padding: 3px 9px; border-radius: 999px; white-space: nowrap; font-size: 12px; font-weight: 800; }
.status.ok { background: var(--teal-soft); color: var(--teal); }
.status.partial { background: var(--amber-soft); color: #8a4613; }
.status.unknown { background: #edeef1; color: #4e5868; }
.status.out { background: #f0f0ed; color: #6b6b65; }
.caption { color: var(--muted); font-size: 13px; }
.fee-breakdown { display: grid; gap: 12px; min-width: 220px; margin: 0; padding: 0; list-style: none; }
.fee-breakdown li { display: grid; gap: 2px; padding-bottom: 10px; border-bottom: 1px solid var(--line); }
.fee-breakdown li:last-child { padding-bottom: 0; border-bottom: 0; }
.fee-breakdown span { font-weight: 800; }
.fee-breakdown small, .plan-condition { display: block; color: var(--muted); line-height: 1.55; }
details { margin-top: 16px; padding: 18px; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
summary { cursor: pointer; font-weight: 800; }
.fee-list { display: grid; gap: 8px; }
.fee-list li { display: grid; gap: 3px; }
.fee-list span, .fee-list small { color: var(--muted); }
.fit-grid > div, .about-grid > div { padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-md); background: #fff; }
.official-cta, .manual-strip { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 28px; border-radius: var(--radius-md); background: var(--navy); color: #fff; }
.official-cta p, .manual-strip p { margin: 4px 0 0; color: #dfe7f2; }
.official-cta a { flex: none; padding: 12px 18px; border-radius: 12px; background: #fff; color: var(--navy); font-weight: 900; text-decoration: none; }
.official-links { display: grid; grid-template-columns: minmax(0, 1fr) minmax(260px, auto); gap: 24px; align-items: start; padding: 24px 26px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); }
.official-links p { margin: 4px 0 0; color: var(--muted); }
.official-links ul { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px; margin: 0; padding: 0; list-style: none; }
.official-links a { display: inline-block; padding: 9px 13px; border: 1px solid #9fb2c9; border-radius: 10px; background: var(--blue-soft); font-weight: 800; text-decoration: none; }
.manual-strip { background: #314761; }
.source-list { display: grid; gap: 10px; padding: 0; list-style: none; }
.source-list li { display: flex; justify-content: space-between; gap: 20px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.source-list span { flex: none; color: var(--muted); font-size: 13px; }
.decision-tool { padding: 28px; border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow); }
fieldset { border: 0; padding: 0; margin: 0; }
legend { margin-bottom: 14px; font-weight: 900; }
.decision-tool label { display: block; padding: 12px 0; border-bottom: 1px solid var(--line); cursor: pointer; }
.decision-result { margin-top: 20px; padding: 18px; border-radius: 12px; background: var(--blue-soft); }
.decision-result strong, .decision-result a { display: block; }
.security-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.security-grid > div { padding: 22px; border: 1px solid var(--line); border-radius: 15px; background: #fff; }
.security-grid span { display: block; color: var(--amber); font-weight: 900; }
.security-grid p { margin-bottom: 0; color: var(--muted); }
.quote-box { padding: 28px; border-left: 5px solid var(--teal); background: #fff; font-weight: 700; }
.template-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.template-grid-two { grid-template-columns: repeat(2, 1fr); }
.template-card { padding: 24px; border: 1px solid var(--line); border-radius: var(--radius-md); background: #fff; }
.copy-text, .copy-checklist { white-space: pre-line; }
.copy-text { margin-bottom: 0; color: var(--muted); }
.copy-checklist { padding: 24px 28px; border: 1px solid var(--line); border-radius: var(--radius-md); background: #fff; }
.copy-checklist p { margin: 7px 0; }
.related-links { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 20px; padding: 22px 24px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); }
.related-links strong { flex-basis: 100%; }
.check-panel { padding: 24px; border: 1px solid var(--line); border-radius: var(--radius-md); background: #fff; }
.check-panel li { margin-block: 8px; }
.single-cta { padding: 26px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.single-cta p { margin: 0 0 6px; color: var(--muted); }
.single-cta a { font-weight: 900; }
.email-address { padding: 12px 16px; border-radius: 10px; background: var(--blue-soft); font-weight: 800; overflow-wrap: anywhere; }
.timeline { padding-left: 22px; border-left: 3px solid var(--teal); }
@media (max-width: 800px) {
  .header-inner { align-items: flex-start; flex-direction: column; padding-block: 14px; }
  .header-nav { width: 100%; display: flex; overflow-x: auto; padding-bottom: 6px; }
  .hero { padding-top: 48px; }
  .hero-grid, .choice-grid, .info-grid, .split-section, .product-summary, .fit-grid, .about-grid, .security-grid, .template-grid, .template-grid-two { grid-template-columns: 1fr; }
  .choice-card:nth-child(2), .choice-card:nth-child(3) { transform: none; }
  .section-heading, .footer-inner { align-items: start; flex-direction: column; }
  .official-cta, .manual-strip, .source-list li { align-items: flex-start; flex-direction: column; }
  .official-links { grid-template-columns: 1fr; }
  .official-links ul { justify-content: flex-start; }
}
@media (max-width: 420px) {
  .header-inner, .container { width: min(calc(100% - 22px), var(--max)); }
  .brand { font-size: 14px; }
  .brand-mark { width: 34px; height: 34px; }
  h1 { font-size: 2.15rem; }
  .page-hero { padding-top: 44px; }
  .page-hero h1 { font-size: 2.35rem; }
  .hero-tags { gap: 7px; }
  .hero-tags li { font-size: 12px; }
  .choice-card { min-height: 0; }
  .manual { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}