:root {
  --ink: #102535;
  --muted: #5d6c77;
  --blue: #59bced;
  --blue-dark: #1688bd;
  --blue-soft: #eaf8ff;
  --line: #dce8ee;
  --paper: #ffffff;
  --wash: #f5f9fb;
  --navy: #0a2638;
  --shadow: 0 18px 45px rgba(16, 37, 53, .10);
  --radius: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
.site-anchor { position: relative; top: -96px; visibility: hidden; }
body { margin: 0; overflow-x: clip; color: var(--ink); background: var(--paper); font-family: Arial, Helvetica, sans-serif; line-height: 1.7; }
img { max-width: 100%; }
a { color: var(--blue-dark); }
.site-shell { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }

.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255,255,255,.97); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); }
.site-header__row { min-height: 78px; display: flex; align-items: center; gap: 28px; }
.site-brand { display: inline-flex; align-items: center; flex: 0 0 auto; text-decoration: none; }
.site-brand img { display: block; width: 132px; height: auto; }
.site-nav { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.site-nav a { padding: 12px 13px; border-radius: 10px; color: var(--ink); font-size: 14px; font-weight: 700; text-decoration: none; letter-spacing: .01em; }
.site-nav a:hover, .site-nav a:focus-visible { color: var(--blue-dark); background: var(--blue-soft); }
.site-call { padding: 11px 16px; color: #fff !important; background: var(--blue-dark); border-radius: 999px !important; white-space: nowrap; }
.site-menu-toggle { display: none; }
.site-menu-label { display: none; margin-left: auto; padding: 10px 13px; color: var(--ink); border: 1px solid var(--line); border-radius: 10px; font-weight: 800; cursor: pointer; }

.site-footer { margin-top: 80px; color: #d9eaf4; background: var(--navy); }
.site-footer__main { display: grid; grid-template-columns: 1.45fr 1fr 1fr 1fr; gap: 42px; padding-block: 58px 44px; }
.site-footer__brand img { width: 180px; filter: brightness(0) invert(1); }
.site-footer p { color: #b9cfdb; font-size: 14px; }
.site-footer h2 { margin: 4px 0 17px; color: #fff; font-size: 15px; text-transform: uppercase; letter-spacing: .09em; }
.site-footer ul { margin: 0; padding: 0; list-style: none; }
.site-footer li + li { margin-top: 8px; }
.site-footer a { color: #d9eaf4; text-decoration: none; }
.site-footer a:hover, .site-footer a:focus-visible { color: var(--blue); }
.site-footer__bottom { display: flex; justify-content: space-between; gap: 20px; padding-block: 20px; border-top: 1px solid rgba(255,255,255,.12); color: #9eb9c7; font-size: 13px; }

.page-hero { position: relative; min-height: 420px; display: grid; place-items: end start; overflow: hidden; color: #fff; background: var(--navy); }
.page-hero img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .54; }
.page-hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(4,23,35,.88), rgba(4,23,35,.26)); }
.page-hero__content { position: relative; z-index: 1; width: min(850px, 100%); padding: 74px 0; }
.eyebrow { display: inline-flex; gap: 8px; align-items: center; margin-bottom: 14px; color: #8fdcff; font-size: 13px; font-weight: 800; text-transform: uppercase; letter-spacing: .12em; }
.page-hero h1 { margin: 0 0 18px; overflow-wrap: break-word; color: #fff; font-family: Georgia, 'Times New Roman', serif; font-size: clamp(38px, 6vw, 68px); line-height: 1.06; letter-spacing: -.03em; }
.page-hero p { max-width: 760px; margin: 0; color: #edf8fd; font-size: clamp(17px, 2.1vw, 21px); line-height: 1.55; }

.content-grid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 56px; align-items: start; padding-block: 64px 20px; }
.article-main { min-width: 0; }
.article-main > p:first-of-type { color: #324b5b; font-size: 20px; line-height: 1.75; }
.article-main h2 { margin: 52px 0 16px; color: var(--ink); font-family: Georgia, 'Times New Roman', serif; font-size: clamp(28px, 3.3vw, 40px); line-height: 1.2; }
.article-main h3 { margin: 32px 0 10px; font-size: 23px; }
.article-main p { margin: 0 0 20px; }
.article-main ul, .article-main ol { margin: 0 0 24px; padding-left: 24px; }
.article-main li + li { margin-top: 8px; }
.article-meta { display: flex; flex-wrap: wrap; gap: 12px 20px; margin: 0 0 28px; padding-bottom: 24px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.article-meta strong { color: var(--ink); }
.evidence-box, .method-box, .note-box { margin: 34px 0; padding: 26px 28px; border: 1px solid var(--line); border-left: 5px solid var(--blue); border-radius: 14px; background: var(--blue-soft); }
.method-box { background: #f8fbfc; }
.note-box { border-left-color: #f3ad4e; background: #fff8eb; }
.evidence-box h2, .method-box h2, .note-box h2 { margin-top: 0; font-size: 27px; }
.source-list a { word-break: break-word; }
.article-sidebar { position: sticky; top: 105px; }
.sidebar-card { margin-bottom: 22px; padding: 25px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: 0 10px 30px rgba(16,37,53,.06); }
.sidebar-card h2 { margin: 0 0 10px; font-size: 21px; }
.sidebar-card p { margin: 0 0 16px; color: var(--muted); font-size: 14px; }
.button { display: inline-flex; align-items: center; justify-content: center; padding: 12px 18px; color: #fff; background: var(--blue-dark); border-radius: 10px; font-weight: 800; text-decoration: none; }
.button:hover, .button:focus-visible { background: #0874a8; }

.listing-hero { padding: 76px 0 60px; color: #fff; background: linear-gradient(125deg, #0a2638, #12688e); }
.listing-hero h1 { max-width: 850px; margin: 0 0 16px; overflow-wrap: break-word; font-family: Georgia, 'Times New Roman', serif; font-size: clamp(42px, 7vw, 72px); line-height: 1.05; }
.listing-hero p { max-width: 700px; margin: 0; color: #d7effa; font-size: 19px; }
.card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 30px; padding-block: 58px; }
.article-card { display: flex; min-width: 0; flex-direction: column; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow); transition: transform .2s ease, box-shadow .2s ease; }
.article-card:hover { transform: translateY(-4px); box-shadow: 0 24px 55px rgba(16,37,53,.15); }
.article-card__image { display: block; aspect-ratio: 16 / 9; overflow: hidden; background: #dfeaf0; }
.article-card__image img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.article-card:hover img { transform: scale(1.035); }
.article-card__body { display: flex; flex: 1; flex-direction: column; padding: 26px; }
.article-card__meta { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 12px; color: var(--blue-dark); font-size: 12px; font-weight: 900; text-transform: uppercase; letter-spacing: .08em; }
.article-card h2 { margin: 0 0 12px; font-family: Georgia, 'Times New Roman', serif; font-size: 27px; line-height: 1.24; }
.article-card h2 a { color: var(--ink); text-decoration: none; }
.article-card p { margin: 0 0 22px; color: var(--muted); }
.article-card__link { margin-top: auto; font-weight: 900; text-decoration: none; }
.pagination { display: flex; justify-content: center; gap: 10px; padding: 0 0 64px; }
.pagination a, .pagination span { min-width: 44px; padding: 9px 13px; border: 1px solid var(--line); border-radius: 9px; text-align: center; text-decoration: none; }
.pagination .current { color: #fff; background: var(--blue-dark); border-color: var(--blue-dark); }

.related { padding-block: 55px 20px; border-top: 1px solid var(--line); }
.related > h2 { margin: 0 0 24px; font-family: Georgia, 'Times New Roman', serif; font-size: 35px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.related-card { overflow: hidden; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.related-card img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.related-card div { padding: 18px; }
.related-card small { color: var(--blue-dark); font-weight: 800; text-transform: uppercase; }
.related-card h3 { margin: 8px 0 0; font-size: 18px; line-height: 1.35; }
.related-card a { color: var(--ink); text-decoration: none; }

.standard-page { padding-block: 68px 10px; }
.standard-page__head { max-width: 820px; margin-bottom: 42px; }
.standard-page__head h1 { margin: 0 0 14px; font-family: Georgia, 'Times New Roman', serif; font-size: clamp(42px, 6vw, 66px); line-height: 1.08; }
.standard-page__head p { color: var(--muted); font-size: 19px; }
.standard-page__content { max-width: 850px; }
.standard-page__content h2 { margin: 42px 0 12px; font-family: Georgia, 'Times New Roman', serif; font-size: 32px; }
.standard-page__content h3 { margin: 26px 0 8px; font-size: 21px; }
.standard-page__content p, .standard-page__content li { color: #334c5b; }
.faq-list details { margin-bottom: 14px; padding: 18px 20px; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.faq-list summary { cursor: pointer; color: var(--ink); font-weight: 900; }
.faq-list details p { margin: 12px 0 0; }

@media (max-width: 980px) {
  .site-menu-label { display: block; }
  .site-nav { position: absolute; top: 78px; left: 0; right: 0; display: none; margin: 0; padding: 16px 20px 22px; flex-direction: column; align-items: stretch; background: #fff; border-bottom: 1px solid var(--line); box-shadow: var(--shadow); }
  .site-menu-toggle:checked ~ .site-nav { display: flex; }
  .site-nav a { text-align: center; }
  .content-grid { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
  .site-footer__main { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 680px) {
  .site-shell { width: min(100% - 28px, 1180px); }
  .site-header__row { min-height: 68px; }
  .site-brand img { width: 112px; }
  .site-nav { top: 68px; }
  .page-hero { min-height: 500px; }
  .page-hero__content { padding: 58px 0; }
  .card-grid, .related-grid { grid-template-columns: 1fr; }
  .article-card h2 { font-size: 24px; }
  .site-footer__main { grid-template-columns: 1fr; gap: 26px; }
  .site-footer__bottom { flex-direction: column; }
}