:root {
  --ink: #24322d;
  --muted: #60706a;
  --line: #dfe8e3;
  --paper: #fffdfa;
  --soft: #f4f8f5;
  --brand: #176b50;
  --brand-dark: #0e513c;
  --accent: #f5b942;
  --warn-bg: #fff8e7;
  --warn-line: #e7bb5b;
  --shadow: 0 12px 32px rgba(26, 61, 49, .08);
}
* { box-sizing: border-box; }
html { color-scheme: light; scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: system-ui, -apple-system, "Segoe UI", "Noto Sans JP", sans-serif; line-height: 1.75; overflow-wrap: anywhere; }
a { color: var(--brand-dark); text-underline-offset: .18em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid #176b50; outline-offset: 3px; border-radius: 4px; }
.skip-link { position: fixed; left: 12px; top: -80px; z-index: 100; padding: 10px 14px; background: #fff; border: 2px solid var(--brand); }
.skip-link:focus { top: 12px; }
.shell { width: min(100% - 32px, 1040px); margin-inline: auto; }
.site-header { border-bottom: 1px solid var(--line); background: rgba(255,253,250,.96); }
.header-inner { min-height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.brand { display: inline-flex; align-items: center; gap: 9px; color: var(--ink); text-decoration: none; min-height: 44px; }
.brand-mark { display: grid; place-items: center; width: 40px; height: 40px; background: #fff3be; border-radius: 50%; font-size: 22px; }
.brand strong, .brand small { display: block; }
.brand strong { line-height: 1.2; }
.brand small { color: var(--muted); font-size: 11px; margin-top: 3px; }
.private-badge { flex: 0 0 auto; padding: 5px 9px; border-radius: 99px; color: #684c08; background: #fff3c8; font-size: 12px; font-weight: 700; }
.hub-main, .article-main { padding-block: 24px 64px; }
.breadcrumbs { display: flex; align-items: center; gap: 8px; min-height: 32px; color: var(--muted); font-size: 13px; margin-bottom: 18px; }
.hub-hero { max-width: 760px; padding: 28px; background: linear-gradient(135deg,#f4faf6,#fff8df); border: 1px solid var(--line); border-radius: 24px; margin-bottom: 38px; }
.eyebrow { color: var(--brand); font-size: 13px; font-weight: 800; letter-spacing: .04em; margin: 0 0 5px; }
h1,h2,h3 { line-height: 1.35; letter-spacing: .01em; }
h1 { font-size: clamp(27px, 5vw, 42px); margin: 0 0 14px; }
h2 { font-size: clamp(21px, 3.5vw, 28px); margin: 0; }
h3 { font-size: 18px; margin: 0 0 8px; }
p { margin: 0 0 1em; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.article-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 16px; }
.article-card { display: flex; flex-direction: column; min-width: 0; padding: 20px; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: var(--shadow); }
.article-card .category, .article-kicker { display: inline-flex; align-self: flex-start; padding: 3px 9px; border-radius: 99px; background: #eaf5ef; color: var(--brand-dark); font-size: 12px; font-weight: 800; }
.article-card h3 { font-size: 19px; margin: 12px 0 8px; }
.article-card p { color: var(--muted); font-size: 14px; }
.card-link { margin-top: auto; display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 9px 14px; border-radius: 12px; background: var(--brand); color: #fff; text-decoration: none; font-weight: 800; }
.preview-note { margin-top: 28px; padding: 18px; background: var(--soft); border-left: 4px solid var(--brand); border-radius: 10px; }
.preview-note p { margin: 4px 0 0; color: var(--muted); }
.article-shell { max-width: 760px; margin-inline: auto; }
.article-head { margin-bottom: 22px; }
.article-kicker { margin-bottom: 12px; }
.meta-row { display: flex; flex-wrap: wrap; gap: 7px 14px; margin-top: 12px; color: var(--muted); font-size: 13px; }
.conclusion { padding: 20px; margin-bottom: 22px; border: 1px solid #cfe2d8; border-left: 6px solid var(--brand); border-radius: 14px; background: #f5fbf7; }
.conclusion h2 { font-size: 15px; color: var(--brand-dark); margin-bottom: 7px; }
.conclusion p { margin: 0; font-size: 17px; font-weight: 650; }
.content-section { margin-block: 28px; }
.content-section > h2 { margin-bottom: 13px; }
.check-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 10px; }
.check-card { padding: 16px; border: 1px solid var(--line); background: #fff; border-radius: 14px; }
.check-card .step { color: var(--brand); font-size: 12px; font-weight: 800; }
.check-card p { margin: 5px 0 0; font-size: 14px; color: var(--muted); }
.assumption-list { margin: 0 0 12px; padding: 12px 14px 12px 2.4em; border-radius: 11px; background: #eef5f8; color: #354f5a; font-size: 13px; font-weight: 650; }
.assumption-list::before { content: "前提"; display: inline-block; margin: 0 0 4px -1.25em; padding: 1px 6px; border: 1px solid #9bb8c5; border-radius: 5px; font-size: 11px; }
.assumption-list li + li { margin-top: 3px; }
.number-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 10px; }
.number-card { min-width: 0; padding: 15px; border: 1px solid var(--line); border-radius: 14px; background: #fff; text-align: center; }
.number-card .label { display: block; color: var(--muted); font-size: 13px; }
.number-card strong { display: block; margin: 3px 0; font-size: 21px; line-height: 1.35; color: var(--brand-dark); }
.number-card small { display: block; color: var(--muted); line-height: 1.5; }
.deposit-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 10px; }
.deposit-card { min-width: 0; padding: 15px; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.deposit-card h3 { padding-bottom: 8px; margin-bottom: 8px; border-bottom: 1px solid var(--line); color: var(--brand-dark); font-size: 16px; }
.deposit-card dl, .deposit-card dd { margin: 0; }
.deposit-card dl > div { display: flex; justify-content: space-between; gap: 10px; align-items: baseline; }
.deposit-card dl > div + div { margin-top: 6px; }
.deposit-card dt { color: var(--muted); font-size: 13px; }
.deposit-card dd { font-weight: 800; white-space: nowrap; }
.qa-panel { max-width: 760px; margin: 0 auto 18px; padding: 12px 14px; border: 2px dashed #876811; border-radius: 12px; background: #fff7d6; }
.qa-panel strong, .qa-panel label { margin-right: 10px; }
.qa-panel select { min-height: 44px; max-width: 100%; padding: 7px; font: inherit; }
.caution-box { padding: 18px; border: 1px solid var(--warn-line); border-radius: 14px; background: var(--warn-bg); }
.caution-box h2 { display: flex; gap: 8px; font-size: 20px; }
.caution-list { margin: 10px 0 0; padding-left: 1.25em; }
.caution-list li + li { margin-top: 7px; }
.caution-heading { display: block; margin-bottom: 2px; font-size: .96em; line-height: 1.45; }
.caution-heading + span { display: block; }
.next-box { padding: 20px; border-radius: 18px; color: #fff; background: #174d3d; }
.next-box h2 { font-size: 21px; }
.next-box > p { color: #dbece5; font-size: 14px; }
.action-list { display: grid; gap: 9px; }
.action-link { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 9px; min-height: 50px; padding: 10px 12px; border-radius: 12px; background: #fff; color: var(--ink); text-decoration: none; }
.action-link .action-type { color: var(--brand-dark); font-size: 11px; font-weight: 800; }
.action-link strong { font-size: 14px; }
.action-link .arrow { font-size: 18px; }
details.sources { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
details.sources summary { cursor: pointer; min-height: 48px; padding: 11px 2px; font-weight: 750; }
.source-list { margin: 0 0 16px; padding-left: 1.3em; }
.source-list li + li { margin-top: 9px; }
.source-list a { display: inline; }
.external-mark { font-size: .85em; white-space: nowrap; }
.disclaimer { margin-top: 24px; color: var(--muted); font-size: 12px; }
.not-found { max-width: 620px; margin: 60px auto; padding: 24px; border: 1px solid var(--line); border-radius: 16px; }
footer { border-top: 1px solid var(--line); padding: 25px 0; color: var(--muted); font-size: 13px; }
@media (max-width: 760px) {
  .article-grid { grid-template-columns: 1fr; }
  .check-grid { grid-template-columns: 1fr; }
  .number-grid { grid-template-columns: 1fr; }
  .deposit-grid { grid-template-columns: 1fr; }
  .number-card { text-align: left; display: grid; grid-template-columns: 1fr auto; gap: 2px 10px; align-items: center; }
  .number-card strong { grid-row: span 2; grid-column: 2; font-size: 19px; text-align: right; }
  .number-card small { grid-column: 1; }
}
@media (max-width: 420px) {
  .shell { width: min(100% - 24px, 1040px); }
  .header-inner { min-height: 62px; }
  .brand small { display: none; }
  .brand-mark { width: 36px; height: 36px; }
  .hub-main, .article-main { padding-top: 16px; }
  .hub-hero { padding: 20px; border-radius: 18px; }
  h1 { font-size: 27px; }
  .conclusion { padding: 17px; }
  .conclusion p { font-size: 16px; }
  .action-link { grid-template-columns: 1fr auto; }
  .action-link .action-type { grid-column: 1; }
  .action-link strong { grid-column: 1; }
  .action-link .arrow { grid-column: 2; grid-row: 1 / span 2; }
}
.explain-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr)); gap:12px; }
.explain-card { padding:16px; border:1px solid var(--line); border-radius:14px; background:#fff; }
.explain-card h3 { margin:0 0 6px; font-size:1rem; line-height:1.45; }
.explain-card p { margin:0; line-height:1.75; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
/* 2026-09-27: question line and source check dates (initial HTML from canonical.json). */
.article-question{margin:10px 0 0;font-weight:650;line-height:1.7}.source-date{display:block;margin-top:2px;font-size:12px;color:#5b6b61}