:root {
  --bg: #f7fafb;
  --surface: #ffffff;
  --soft: #edf3f5;
  --ink: #182126;
  --muted: #64747b;
  --accent: #255f70;
  --accent-dark: #174957;
  --warm: #b87532;
  --line: #d5e0e4;
  --focus: #0b637d;
  --read: 750px;
  --wide: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--bg); font-family: "Noto Sans", "Segoe UI", Arial, sans-serif; font-size: 18px; line-height: 1.78; text-rendering: optimizeLegibility; }
body, button { font-family: "Noto Sans", "Segoe UI", Arial, sans-serif; }
a { color: var(--accent-dark); text-decoration-thickness: .09em; text-underline-offset: .18em; }
a:hover { color: var(--warm); }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid var(--focus); outline-offset: 4px; }
img { display: block; max-width: 100%; height: auto; }
.screen-reader-text, .skip-link:not(:focus) { position: absolute !important; clip: rect(1px,1px,1px,1px); width: 1px; height: 1px; overflow: hidden; }
.skip-link { z-index: 9999; position: fixed; top: 10px; left: 10px; padding: 12px 18px; color: #fff; background: var(--accent-dark); }
.site-header { position: sticky; z-index: 100; top: 0; min-height: 72px; background: rgba(255,255,255,.97); border-bottom: 1px solid var(--line); backdrop-filter: blur(10px); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; width: min(calc(100% - 48px), 1280px); min-height: 72px; margin: 0 auto; }
.site-identity { flex: 0 0 auto; }
.custom-logo-link { display: flex; align-items: center; min-height: 52px; }
.custom-logo { width: auto; height: 52px; max-width: 225px; object-fit: contain; }
.fallback-name { font-weight: 700; text-decoration: none; }
.primary-menu { display: flex; align-items: center; gap: 20px; margin: 0; padding: 0; list-style: none; }
.primary-menu a { display: flex; align-items: center; min-height: 48px; color: var(--ink); font-size: 13.5px; font-weight: 650; line-height: 1.25; text-decoration: none; border-bottom: 2px solid transparent; }
.primary-menu a:hover, .primary-menu .current-menu-item > a { color: var(--accent); border-bottom-color: var(--accent); }
.nav-toggle { display: none; width: 48px; height: 48px; padding: 12px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); cursor: pointer; }
.nav-toggle-lines, .nav-toggle-lines::before, .nav-toggle-lines::after { display: block; width: 22px; height: 2px; background: currentColor; content: ""; }
.nav-toggle-lines { position: relative; }
.nav-toggle-lines::before { position: absolute; top: -7px; }
.nav-toggle-lines::after { position: absolute; top: 7px; }
.site-main { min-height: 60vh; }
.editorial-article { padding: clamp(44px, 7vw, 94px) clamp(18px, 5vw, 52px) clamp(72px, 9vw, 118px); }
.editorial-article > * { width: min(100%, var(--read)); margin-right: auto; margin-left: auto; }
.editorial-article > h1 { max-width: 940px; margin-top: 0; margin-bottom: 28px; font-size: clamp(2.35rem, 6vw, 4.6rem); line-height: 1.06; letter-spacing: -.035em; }
.editorial-article > h1 + p { font-size: clamp(1.08rem, 2vw, 1.32rem); line-height: 1.65; color: #31444c; }
.editorial-article h2 { margin-top: clamp(70px, 9vw, 108px); margin-bottom: 20px; padding-top: 14px; font-size: clamp(1.85rem, 4vw, 2.8rem); line-height: 1.18; letter-spacing: -.025em; border-top: 1px solid var(--line); }
.editorial-article h3 { margin-top: 42px; margin-bottom: 14px; font-size: clamp(1.35rem, 3vw, 1.78rem); line-height: 1.28; }
.editorial-article p { margin-top: 0; margin-bottom: 1.35em; }
.editorial-article ul, .editorial-article ol { margin-top: 0; margin-bottom: 1.7em; padding-left: 1.4em; }
.editorial-article li { margin-bottom: .65em; }
.editorial-article blockquote { padding: 24px 28px; margin-top: 36px; margin-bottom: 36px; border-left: 4px solid var(--accent); background: var(--soft); }
.editorial-article figure, .editorial-article .wide-asset, .editorial-article .table-wrap, .editorial-article .decision-model, .editorial-article .comparison { width: min(100%, var(--wide)); }
.editorial-image { margin-top: clamp(34px, 6vw, 62px); margin-bottom: clamp(48px, 7vw, 78px); }
.editorial-image img { width: 100%; border-radius: 4px; background: var(--soft); box-shadow: 0 4px 16px rgba(30,55,65,.05); }
.editorial-image figcaption { width: min(100%, var(--read)); margin: 10px auto 0; color: var(--muted); font-size: .83rem; line-height: 1.55; }
.hero-image img { aspect-ratio: 16/9; object-fit: cover; }
.table-wrap { margin-top: 28px; margin-bottom: 48px; overflow-x: auto; border-top: 2px solid var(--accent); }
table { width: 100%; border-collapse: collapse; background: var(--surface); font-size: .9rem; line-height: 1.55; }
th, td { min-width: 155px; padding: 15px 16px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
th { color: var(--accent-dark); font-weight: 700; background: var(--soft); }
.decision-model, .comparison, .flow-asset, .timeline-asset, .matrix-asset { padding: clamp(22px, 4vw, 40px); margin-top: 30px; margin-bottom: 48px; border: 1px solid var(--line); background: var(--surface); }
.flow-asset ol, .timeline-asset ol { margin-bottom: 0; }
.source-list a { font-weight: 600; }
.faq-section { margin-top: 96px; padding-top: 24px; border-top: 3px solid var(--ink); }
.faq-section h2 { margin-top: 0; border-top: 0; }
.faq-item { margin-bottom: 0; border-bottom: 1px solid var(--line); }
.faq-item summary { min-height: 58px; padding: 16px 42px 16px 0; color: var(--ink); font-weight: 700; line-height: 1.45; cursor: pointer; }
.faq-item p { padding: 0 0 20px; margin: 0; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; margin-bottom: 50px; }
.cta-row a { display: inline-flex; align-items: center; min-height: 48px; padding: 10px 18px; color: #fff; background: var(--accent); border: 1px solid var(--accent); text-decoration: none; font-weight: 700; }
.cta-row a:hover { color: #fff; background: var(--accent-dark); }
.site-footer { color: #dbe7ea; background: #173842; border-top: 5px solid var(--warm); }
.footer-inner { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(280px, .9fr); gap: 60px; width: min(calc(100% - 48px), var(--wide)); padding: 58px 0 68px; margin: 0 auto; }
.footer-name { margin: 0 0 8px; color: #fff; font-size: 1.22rem; font-weight: 700; }
.site-footer p { max-width: 620px; margin-top: 0; }
.site-footer a { color: #fff; }
.footer-links { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); align-content: start; gap: 8px 20px; }
.footer-links a { display: flex; align-items: center; min-height: 44px; }
@media (max-width: 1119px) {
  .nav-toggle { display: block; }
  .primary-nav { display: none; position: absolute; top: 72px; right: 0; left: 0; padding: 12px 24px 24px; background: #fff; border-bottom: 1px solid var(--line); box-shadow: 0 12px 22px rgba(30,55,65,.08); }
  .primary-nav.is-open { display: block; }
  .primary-menu { display: block; }
  .primary-menu a { min-height: 50px; font-size: 16px; }
}
@media (max-width: 767px) {
  body { font-size: 16px; line-height: 1.72; }
  html { scroll-behavior: auto; }
  .header-inner { width: calc(100% - 32px); }
  .custom-logo { height: 46px; max-width: 210px; }
  .editorial-article { padding-right: 18px; padding-left: 18px; }
  .editorial-article > h1 { font-size: clamp(2.1rem, 10vw, 2.75rem); }
  .editorial-article h2 { margin-top: 62px; }
  .editorial-image img { aspect-ratio: 5/4; object-fit: cover; object-position: center; }
  .hero-image img { aspect-ratio: 4/3; }
  .footer-inner { grid-template-columns: 1fr; gap: 30px; width: calc(100% - 36px); }
  .footer-links { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}