:root {
  color-scheme: light;
  --paper: #ffffff;
  --ink: #202936;
  --muted: #4b5563;
  --link: #164f96;
  --link-hover: #103b70;
  --line: #cbd5e1;
  --tint: #f4f7fb;
  --accent: #28648c;
  --sans: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", Meiryo, "Yu Gothic", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-padding-top: 1.5rem; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); font-size: 1rem; line-height: 1.85; overflow-wrap: anywhere; }
a { color: var(--link); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: .22em; }
a:hover { color: var(--link-hover); text-decoration-thickness: 2px; }
a:focus-visible, .table-scroll:focus-visible { outline: 3px solid var(--link); outline-offset: 4px; }
.skip-link { position: absolute; top: .5rem; left: .5rem; z-index: 5; padding: .5rem .8rem; transform: translateY(-180%); background: white; }
.skip-link:focus { transform: none; }
.site-header { max-width: 1040px; margin: auto; padding: 1.35rem 2rem; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: inline-flex; flex-direction: column; min-width: 0; color: var(--ink); text-decoration: none; line-height: 1.5; }
.brand-name { font-size: 1.5rem; font-weight: 700; }
.brand-tagline { margin-top: .4rem; color: var(--muted); font-size: .8rem; }
.site-nav { display: flex; flex-wrap: wrap; gap: .25rem 1rem; font-size: .875rem; }
.site-nav a { display: inline-flex; align-items: center; min-height: 44px; }
.site-nav [aria-current="page"] { font-weight: 700; }
.home { max-width: 860px; margin: auto; padding: 3rem 2rem 4rem; }
.eyebrow { margin: 0 0 .8rem; color: var(--accent); font-size: .875rem; font-weight: 700; }
.home h1 { margin: 0 0 1.5rem; font-size: clamp(1.9rem, 4vw, 2.8rem); line-height: 1.5; font-weight: 700; letter-spacing: .01em; }
.home-intro { max-width: 40rem; margin: 0 0 .9rem; }
.home-purpose, .home-policy { margin-top: 2.2rem; }
.home-purpose h2, .home-policy h2, .section-label { margin: 0 0 1rem; font-size: 1.3rem; line-height: 1.6; }
.home-purpose p, .home-policy p { margin: 0 0 1rem; }
.latest { margin-top: 2.8rem; }
.article-preview { padding: 1.5rem; border: 1px solid var(--line); border-radius: 8px; background: var(--tint); }
.article-preview h3 { margin: .5rem 0 1rem; font-size: 1.45rem; line-height: 1.6; }
.article-preview p { margin: 0 0 1rem; }
.meta { color: var(--muted); font-size: .875rem; }
.read-link { display: inline-flex; align-items: center; min-height: 44px; font-weight: 700; }
.button-link { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; max-width: 100%; padding: .65rem 1.15rem; background: var(--link); color: white; border: 2px solid var(--link); border-radius: 6px; text-align: center; text-decoration: underline; text-underline-offset: .2em; font-weight: 700; }
.button-link:hover { background: var(--link-hover); border-color: var(--link-hover); color: white; }
.article-shell { max-width: 800px; margin: auto; padding: 1.8rem 2rem 4rem; }
.breadcrumb { margin: 0 0 1.8rem; color: var(--muted); font-size: .875rem; }
.article-header { padding-bottom: 1.5rem; margin-bottom: 1.8rem; border-bottom: 1px solid var(--line); }
.article-header h1 { margin: .4rem 0 1rem; font-size: clamp(1.7rem, 4vw, 2.35rem); line-height: 1.55; font-weight: 700; text-wrap: pretty; }
.article-header .meta { margin: 0; }
.article-body p { margin: 0 0 1.25rem; }
.article-body h2 { margin: 2.8rem 0 1.2rem; padding: .75rem 0 .75rem 1rem; border-left: 4px solid var(--accent); background: var(--tint); font-size: 1.35rem; line-height: 1.65; font-weight: 700; }
.article-body h3 { margin: 0 0 .6rem; font-size: 1.05rem; line-height: 1.6; }
.article-body ul, .article-body ol { margin: 0 0 1.4rem; padding-left: 1.35rem; }
.article-body li { margin: .6rem 0; padding-left: .15rem; }
.article-body .source-link { margin-top: -.3rem; font-size: .875rem; line-height: 1.7; }
.notice { margin: 1.5rem 0; padding: 1rem; border: 1px solid var(--line); border-left: 4px solid var(--accent); border-radius: 4px; background: var(--tint); }
.notice > :last-child { margin-bottom: 0; }
.notice-label { display: block; margin-bottom: .5rem; font-size: .9rem; }
.article-body .choice-cards, .article-body .check-grid, .article-body .plan-comparison, .article-body .status-cards { list-style: none; padding: 0; display: grid; gap: .85rem; margin: 1.3rem 0 1.6rem; }
.article-body .choice-cards li, .article-body .status-cards li { margin: 0; padding: 1rem 1.1rem; border: 1px solid var(--line); border-radius: 6px; }
.card-label { display: block; margin-top: .45rem; color: var(--accent); font-weight: 700; }
.article-body .plan-comparison, .article-body .check-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.article-body .plan-comparison li { margin: 0; padding: 1rem 1.1rem; border: 1px solid var(--line); border-radius: 6px; background: var(--tint); }
.plan-name, .plan-price, .plan-detail { display: block; }
.plan-name { font-weight: 700; }
.plan-price { margin: .2rem 0 .5rem; font-size: 1.5rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.plan-detail { font-size: .9375rem; }
.check-card { margin: 0 !important; padding: 1.1rem !important; border: 1px solid var(--line); border-radius: 6px; background: white; }
.check-heading { display: flex; gap: .75rem; align-items: flex-start; margin-bottom: .75rem; }
.check-icon { display: flex; align-items: center; justify-content: center; flex: 0 0 36px; width: 36px; height: 36px; background: var(--tint); color: var(--accent); border-radius: 4px; }
.check-icon svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.check-number { display: block; color: var(--muted); font-size: .8rem; font-weight: 700; line-height: 1.4; margin-bottom: .25rem; }
.check-heading h3 { margin-bottom: 0; }
.check-card p { margin-bottom: .75rem; }
.check-card > :last-child { margin-bottom: 0; }
.table-scroll { width: 100%; max-width: 100%; overflow-x: auto; margin: 1rem 0 1.3rem; }
table { width: 100%; border-collapse: collapse; font-size: .9375rem; line-height: 1.6; font-variant-numeric: tabular-nums; }
caption { text-align: left; font-weight: 700; padding-bottom: .6rem; }
th, td { border: 1px solid var(--line); padding: .8rem .7rem; text-align: right; }
thead th { background: var(--tint); font-weight: 700; }
th:first-child { text-align: left; }
tbody th { font-weight: 500; }
.status-cards strong { display: block; font-size: 1rem; }
.status-detail { display: block; margin-top: .4rem; }
.article-end { margin-top: 2.8rem; padding-top: 1.3rem; border-top: 1px solid var(--line); }
.site-footer { max-width: 1040px; margin: auto; padding: 1.5rem 2rem 2rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .875rem; line-height: 1.8; }
.site-footer p { max-width: 44rem; margin: 0 0 .7rem; }
.footer-brand { font-weight: 700; color: var(--ink); font-size: 1rem; }
@media (max-width: 760px) {
  .site-header { flex-direction: column; align-items: flex-start; gap: .65rem; }
}
@media (max-width: 600px) {
  .site-header { padding: 1rem 1.125rem .7rem; }
  .brand-name { font-size: 1.35rem; }
  .brand-tagline { font-size: .75rem; }
  .site-nav { font-size: .8125rem; }
  .home { padding: 2rem 1.125rem 3rem; }
  .home h1 { font-size: 1.75rem; line-height: 1.5; }
  .article-preview { padding: 1rem; }
  .article-preview h3 { font-size: 1.25rem; }
  .home-purpose h2, .home-policy h2, .section-label { font-size: 1.2rem; }
  .article-shell { padding: 1.25rem 1.125rem 3rem; }
  .breadcrumb { margin-bottom: 1.3rem; }
  .article-header h1 { font-size: 1.65rem; }
  .article-body { line-height: 1.8; }
  .article-body p { margin-bottom: 1.15rem; }
  .article-body h2 { margin-top: 2.2rem; padding: .65rem 0 .65rem .75rem; font-size: 1.2rem; }
  .article-body .plan-comparison, .article-body .check-grid { grid-template-columns: 1fr; }
  .check-card { padding: 1rem !important; }
  .notice { padding: .9rem; }
  table { font-size: .875rem; }
  th, td { padding: .65rem .4rem; }
  .site-footer { padding: 1.5rem 1.125rem; }
}
@media print {
  body { color: black; font-size: 10pt; }
  .skip-link, .site-nav, .breadcrumb, .article-end { display: none; }
  .site-header, .site-footer, .article-shell { max-width: none; padding: .5rem 0; }
  .article-header h1 { font-size: 22pt; }
  .article-body h2 { break-after: avoid; font-size: 15pt; }
  .check-card, .plan-comparison li, table { break-inside: avoid; }
  a { color: black; }
  .button-link { background: white; color: black; border-color: black; }
}
.brand-name { display: flex; align-items: center; gap: .55rem; }
.brand-icon { flex: 0 0 auto; }
.listening-figure, .home-figure { margin: 1.7rem 0 2rem; }
.listening-figure img, .home-figure img { display: block; width: 100%; height: auto; }
.listening-figure figcaption { margin-top: .6rem; color: var(--muted); font-size: .8125rem; }
@media (max-width: 600px) { .brand-icon { width: 28px; height: 28px; } .brand-name { gap: .4rem; } }
.home-about { margin-top: 2rem; padding-top: 1rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .875rem; }
.home-about p { margin: 0 0 .35rem; }