:root { --blue: #155eef; --navy: #0b1736; --text: #182033; --muted: #667085; --line: #dce3ed; --pale: #f4f7ff; font-family: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", system-ui, sans-serif; color: var(--text); background: #fff; font-synthesis: none; }
[hidden] { display: none !important; }
.cookie-settings { border: 0; background: none; color: inherit; font: inherit; cursor: pointer; padding: 0; }
.reading-cookie-consent { position: fixed; z-index: 50; right: 12px; bottom: 12px; left: 12px; margin-left: auto; max-width: 560px; display: flex; align-items: center; gap: 16px; padding: 14px; border: 1px solid var(--line); border-radius: 12px; background: #fff; box-shadow: 0 8px 30px rgb(11 23 54 / 12%); font-size: 12px; line-height: 1.6; }
.reading-cookie-consent strong { color: var(--navy); }
.reading-cookie-consent p { margin-top: 3px; color: var(--muted); font-size: 11px; }
.reading-cookie-consent a { color: var(--blue); text-decoration: underline; }
.reading-cookie-actions { display: flex; gap: 7px; flex-shrink: 0; }
.reading-cookie-actions button { min-width: 50px; min-height: 38px; padding: 7px 12px; border: 1px solid var(--navy); border-radius: 20px; background: #fff; color: var(--navy); font: inherit; font-weight: 700; cursor: pointer; }
.reading-cookie-actions [data-consent="granted"] { border-color: var(--blue); background: var(--blue); color: #fff; }
@media (max-width: 359px) { .reading-cookie-consent { gap: 8px; padding: 10px; } .reading-cookie-actions button { min-width: 42px; padding: 7px; } }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 110px; }
body { margin: 0; min-width: 320px; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
button, a, summary { -webkit-tap-highlight-color: transparent; }
a, summary { transition: color 160ms, background 160ms, box-shadow 160ms; }
a:hover { color: var(--blue); }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 5px; }
h1, h2, h3, p, figure { margin: 0; }
h1, h2, h3 { color: var(--navy); overflow-wrap: anywhere; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
.skip-link { position: absolute; left: 20px; top: -100px; z-index: 40; padding: 12px; background: #fff; color: var(--blue); }
.skip-link:focus { top: 12px; }
.review-banner { display: flex; align-items: center; justify-content: center; gap: 8px; min-height: 34px; padding: 8px 20px; background: #eaf1ff; color: #244778; font-size: 11px; letter-spacing: .05em; }
.review-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--blue); }
.review-detail { margin-left: 16px; color: #526680; }
.reading-header { position: sticky; top: 0; z-index: 20; min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 18px max(24px, calc((100vw - 1280px) / 2)); background: rgb(255 255 255 / 96%); border-bottom: 1px solid var(--line); }
.reading-logo img, .reading-footer img { width: 200px; height: auto; }
.reading-header nav { display: flex; align-items: center; gap: 30px; font-size: 13px; font-weight: 700; }
.reading-header nav [aria-current="page"] { color: var(--blue); }
.header-contact { padding: 12px 22px; border-radius: 8px; background: var(--blue); color: #fff; }
.header-contact:hover { background: #0b4fd6; color: #fff; }
.reading-main { max-width: 1200px; margin: auto; padding: 0 28px; }
.reading-breadcrumb { margin: 24px 0 0; color: var(--muted); font-size: 11px; line-height: 1.8; }
.reading-breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 8px 12px; padding: 0; margin: 0; }
.reading-breadcrumb li + li::before { content: "/"; margin-right: 12px; color: #a1abbb; }
.eyebrow { display: block; color: var(--blue); font-family: Inter, system-ui, sans-serif; font-size: 12px; font-weight: 750; letter-spacing: .15em; }
.index-intro { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; padding: 62px 0 64px; }
.index-intro h1 { margin: 20px 0 24px; font-size: clamp(30px, 3.6vw, 45px); line-height: 1.65; letter-spacing: .01em; }
.index-intro p { color: #526174; font-size: 15px; line-height: 2.1; }
.mobile-break { display: none; }
.index-intro-image { background: var(--pale); border-radius: 22px; overflow: hidden; }
.index-intro-image img { width: 100%; }
.article-list { padding: 42px 0 78px; border-top: 1px solid var(--line); }
.list-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 30px; }
.list-heading h2 { font-size: 23px; font-weight: 750; line-height: 1.6; }
.list-heading > span, .list-heading > a { color: var(--muted); font-size: 12px; white-space: nowrap; }
.reading-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; }
.reading-card { border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: #fff; }
.reading-card > a { display: flex; height: 100%; flex-direction: column; }
.reading-card:hover { box-shadow: 0 14px 36px rgb(11 23 54 / 7%); }
.card-visual { aspect-ratio: 3/2; background: #f7f9fc; padding: 10px; }
.card-visual img { width: 100%; height: 100%; object-fit: contain; border-radius: 8px; }
.card-copy { display: flex; flex: 1; flex-direction: column; padding: 24px; }
.category { display: inline-flex; align-self: flex-start; color: #2357ae; background: #eaf1ff; padding: 5px 10px; border-radius: 4px; font-size: 11px; font-weight: 700; line-height: 1.6; }
.card-copy h3 { margin: 15px 0 14px; font-size: 18px; line-height: 1.8; }
.card-copy p { color: #526174; font-size: 13px; line-height: 1.95; }
.card-link { display: flex; justify-content: space-between; margin-top: auto; padding-top: 22px; color: var(--blue); font-size: 12px; font-weight: 700; }
.consultation { padding: 48px 36px; margin: 0 0 72px; border-radius: 18px; background: var(--pale); text-align: center; }
.consultation h2 { margin: 16px 0; font-size: clamp(22px, 2.2vw, 29px); line-height: 1.7; }
.consultation p { max-width: 660px; margin: 0 auto 26px; color: #526174; font-size: 14px; line-height: 2; }
.reading-button { display: inline-flex; align-items: center; gap: 30px; border-radius: 8px; background: var(--blue); color: #fff; padding: 16px 27px; font-size: 14px; font-weight: 700; }
.reading-button:hover { color: #fff; background: #0b4fd6; }
.consultation-secondary { display: block; margin-top: 20px; font-size: 12px; color: var(--blue); text-decoration: underline; text-underline-offset: 4px; }
.article-hero { display: grid; grid-template-columns: 1.06fr 1fr; align-items: center; gap: 46px; padding: 50px 0 64px; }
.article-hero h1 { font-size: clamp(26px, 2.5vw, 36px); line-height: 1.65; margin: 16px 0 22px; }
.article-byline { display: flex; flex-wrap: wrap; gap: 8px 14px; color: var(--muted); font-size: 11px; }
.article-byline span { color: #65718a; }
.hero-summary { margin-top: 22px; color: #526174; font-size: 14px; line-height: 2; }
.article-hero-image img { width: 100%; border-radius: 14px; }
.article-hero-image figcaption { color: var(--muted); font-size: 11px; line-height: 1.9; margin-top: 14px; padding: 0 8px; text-align: center; }
.article-layout { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 64px; border-top: 1px solid var(--line); padding: 54px 0 64px; }
.article-toc nav { position: sticky; top: 118px; border-left: 2px solid #dce8ff; padding-left: 22px; }
.article-toc h2 { font-size: 15px; margin-top: 14px; }
.article-toc ol { padding: 0; margin: 18px 0 26px; list-style: none; counter-reset: toc; }
.article-toc li { counter-increment: toc; padding: 9px 0; font-size: 12px; line-height: 1.9; color: #526174; }
.article-toc a { display: inline-block; }
.article-toc li a::before { content: counter(toc, decimal-leading-zero) "  "; color: #7b8faf; font-size: 10px; }
.toc-back { font-size: 11px; color: var(--blue); }
.article-body { min-width: 0; max-width: 790px; font-size: 16px; line-height: 2.05; }
.article-body p + p { margin-top: 22px; }
.article-intro { padding-bottom: 12px; }
.article-section { margin-top: 48px; }
.article-section h2 { font-size: 24px; line-height: 1.8; margin-bottom: 24px; padding-bottom: 16px; border-bottom: 2px solid #eaf1ff; }
.table-scroll { width: 100%; overflow-x: auto; margin: 26px 0; border: 1px solid var(--line); border-radius: 8px; }
table { width: 100%; border-collapse: collapse; text-align: left; font-size: 13px; line-height: 1.85; }
thead { background: #eaf1ff; color: #234578; }
th, td { padding: 16px 18px; border-bottom: 1px solid var(--line); vertical-align: top; }
tbody th { width: 27%; min-width: 124px; font-weight: 650; background: #f9fbff; }
tbody tr:last-child th, tbody tr:last-child td { border-bottom: 0; }
.check-list { list-style: none; padding: 20px 24px; margin: 26px 0; border-radius: 8px; background: #f8faff; font-size: 14px; }
.check-list li { position: relative; padding-left: 25px; margin: 10px 0; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--blue); font-weight: 800; }
.article-note { padding: 20px 24px; margin: 26px 0 0; border-left: 3px solid #7ba6ef; background: #f4f7ff; font-size: 13px; line-height: 2; }
.article-note strong { display: block; color: #234578; font-size: 12px; margin-bottom: 6px; }
.article-faq details { border-bottom: 1px solid var(--line); padding: 18px 0; }
.article-faq summary { color: var(--navy); cursor: pointer; font-size: 15px; font-weight: 700; line-height: 1.9; }
.article-faq details p { font-size: 14px; margin: 12px 0 0; color: #526174; }
.article-sources { margin-top: 46px; padding-top: 28px; border-top: 1px solid var(--line); color: var(--muted); }
.article-sources h2 { font-size: 15px; }
.article-sources p { font-size: 12px; margin-top: 12px; }
.article-sources ul { padding-left: 18px; font-size: 12px; }
.article-sources li { margin: 14px 0; }
.article-sources a { color: #2457ab; text-decoration: underline; text-underline-offset: 4px; }
.article-sources li > span { display: block; font-size: 11px; }
.article-publisher { margin-top: 42px; padding: 26px; background: #f7f9fc; border: 1px solid var(--line); border-radius: 10px; }
.article-publisher img { width: 190px; }
.article-publisher p { margin-top: 16px; font-size: 12px; line-height: 2; color: #526174; }
.article-publisher a { display: inline-block; margin-top: 12px; color: var(--blue); font-size: 12px; }
.related-articles { padding-bottom: 80px; }
.reading-footer { padding: 44px max(24px, calc((100vw - 1144px) / 2)); display: grid; grid-template-columns: 1fr auto; gap: 28px; border-top: 1px solid var(--line); background: #f7f9fc; }
.reading-footer p { color: var(--muted); font-size: 11px; margin-top: 15px; }
.reading-footer nav { display: flex; flex-wrap: wrap; align-items: center; gap: 20px; font-size: 11px; color: #526174; }
.reading-footer small { grid-column: 1/-1; color: var(--muted); font-size: 10px; }
@media (max-width: 960px) {
  .reading-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .index-intro, .article-hero { gap: 28px; }
  .article-layout { grid-template-columns: 190px minmax(0,1fr); gap: 32px; }
  .article-section h2 { font-size: 22px; }
  .reading-footer { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .reading-header { min-height: 68px; padding: 14px 20px; gap: 14px; }
  .reading-logo img { width: 160px; }
  .reading-header nav { gap: 16px; font-size: 11px; }
  .reading-header nav > a:first-child { display: none; }
  .header-contact { padding: 10px 13px; }
  .reading-main { padding: 0 24px; }
  .index-intro, .article-hero { grid-template-columns: 1fr; padding: 36px 0 42px; gap: 28px; }
  .index-intro h1 { font-size: 32px; margin-top: 16px; }
  .mobile-break { display: block; }
  .index-intro-image { max-width: 540px; }
  .article-hero h1 { font-size: 28px; }
  .article-layout { grid-template-columns: 1fr; gap: 36px; padding-top: 32px; }
  .article-toc nav { position: static; background: #f7f9fc; border: 1px solid var(--line); border-radius: 10px; padding: 24px; }
  .article-toc ol { margin-bottom: 12px; }
  .article-toc li { padding: 6px 0; }
  .article-section { margin-top: 40px; }
  .article-body { font-size: 15px; line-height: 2.05; }
  .article-section h2 { font-size: 21px; }
  .article-list { padding-top: 30px; }
  .list-heading h2 { font-size: 20px; }
  .list-heading > span { font-size: 11px; }
  .reading-grid { gap: 20px; }
  .card-copy { padding: 20px; }
  .card-copy h3 { font-size: 16px; }
  .consultation { padding: 34px 22px; margin-bottom: 50px; }
  .consultation h2 { font-size: 23px; }
  .reading-footer { padding: 34px 24px; }
}
@media (max-width: 540px) {
  .review-detail { display: none; }
  .reading-header nav > a:nth-child(2) { display: none; }
  .reading-main { padding-inline: 20px; }
  .reading-grid { grid-template-columns: 1fr; }
  .card-copy h3 { font-size: 18px; }
  .card-copy p { font-size: 13px; }
  .card-visual { padding: 12px; }
  .article-hero h1 { font-size: 26px; }
  .article-byline { font-size: 10px; }
  .hero-summary { font-size: 13px; }
  .article-toc nav { padding: 20px; }
  .article-section h2 { font-size: 20px; }
  .table-scroll table { min-width: 420px; }
  th, td { padding: 14px; }
  .check-list { padding: 16px 18px; }
  .article-note { padding: 18px; }
  .list-heading { align-items: flex-start; }
  .list-heading h2 { font-size: 18px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } a, summary { transition: none; } }