:root{--article-ink:#102f4d;--article-muted:#587087;--article-blue:#106fc1;--article-pale:#eef8ff;--article-line:#d9e9f5}body{background:#f8fbfd}.article-hero{padding:58px 0 44px;background:linear-gradient(140deg,#fafdff 0%,#e8f6ff 100%);border-bottom:1px solid var(--article-line)}.article-hero .category{display:inline-flex;padding:7px 11px;border-radius:999px;background:#fff;border:1px solid #cde4f4;color:var(--article-blue);font-size:.78rem;font-weight:700}.article-hero h1{max-width:920px;margin:18px 0 16px;color:var(--article-ink);font-size:clamp(2.05rem,5vw,4.25rem);line-height:1.15;letter-spacing:-.035em}.article-hero .lead{max-width:820px;margin:0;color:var(--article-muted);font-size:1.08rem;line-height:1.85}.article-meta{display:flex;flex-wrap:wrap;gap:9px 18px;margin-top:22px;color:#668096;font-size:.84rem}.article-shell{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:54px;align-items:start;padding:54px 0 82px}.article-body{min-width:0}.article-cover{margin:0 0 38px;overflow:hidden;border-radius:26px;background:#fff;box-shadow:0 20px 54px rgba(12,78,127,.13)}.article-cover img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover}.article-cover figcaption,.article-figure figcaption{padding:12px 16px;color:#6b8194;background:#fff;font-size:.78rem;line-height:1.55}.article-body h2{scroll-margin-top:110px;margin:50px 0 16px;color:var(--article-ink);font-size:clamp(1.5rem,3vw,2.15rem);line-height:1.35}.article-body p,.article-body li{color:#334f68;font-size:1.02rem;line-height:1.95}.article-body p{margin:0 0 18px}.article-figure{margin:30px 0;overflow:hidden;border:1px solid var(--article-line);border-radius:22px;background:#fff}.article-figure img{display:block;width:100%;max-height:520px;object-fit:cover}.source-note{margin:24px 0;padding:18px 20px;border-left:4px solid var(--article-blue);border-radius:0 16px 16px 0;background:var(--article-pale);color:#3f607b;font-size:.92rem;line-height:1.75}.source-note a{color:var(--article-blue);font-weight:700;text-decoration:underline;text-underline-offset:3px}.iso-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:24px 0}.iso-card{padding:20px;border:1px solid var(--article-line);border-radius:18px;background:#fff}.iso-card strong{display:block;color:var(--article-blue);font-size:1.02rem}.iso-card span{display:block;margin-top:8px;color:#4d687f;font-size:.9rem;line-height:1.65}.article-aside{position:sticky;top:126px}.article-nav,.product-callout{padding:20px;border:1px solid var(--article-line);border-radius:20px;background:#fff;box-shadow:0 12px 36px rgba(14,80,128,.07)}.article-nav strong{display:block;margin-bottom:12px;color:var(--article-ink)}.article-nav a{display:block;padding:10px 12px;border-radius:11px;color:#46637b;font-size:.88rem;line-height:1.45}.article-nav a:hover{background:var(--article-pale);color:var(--article-blue)}.product-callout{margin-top:16px;background:linear-gradient(145deg,#0d6bb9,#084e91);color:#fff;border:0}.product-callout small{opacity:.8}.product-callout strong{display:block;margin:8px 0 16px;font-size:1.15rem;line-height:1.45}.product-callout a{display:inline-flex;padding:10px 14px;border-radius:999px;background:#fff;color:#075cae;font-weight:800;font-size:.82rem}.article-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;padding-top:28px;border-top:1px solid var(--article-line)}.article-actions a{display:inline-flex;padding:12px 17px;border:1px solid #bed9eb;border-radius:999px;background:#fff;color:#205a87;font-weight:700}.article-actions a.primary{background:linear-gradient(135deg,#1677d2,#075cae);color:#fff;border-color:transparent}.articles-intro{padding:56px 0 32px;background:linear-gradient(140deg,#fafdff,#eaf6ff);border-bottom:1px solid var(--article-line)}.articles-intro h1{margin:10px 0 14px;color:var(--article-ink);font-size:clamp(2.2rem,5vw,4.5rem)}.articles-intro p{max-width:760px;color:var(--article-muted);font-size:1.05rem;line-height:1.8}.topic-nav{display:flex;gap:9px;overflow:auto;padding:22px 0 4px;scrollbar-width:none}.topic-nav a{flex:0 0 auto;padding:10px 14px;border:1px solid #cfe3f2;border-radius:999px;background:#fff;color:#315875;font-size:.84rem;font-weight:700}.topic-nav a.active{background:#126fbd;color:#fff;border-color:#126fbd}.articles-list{padding:50px 0 80px}.featured-article{display:grid;grid-template-columns:1.1fr .9fr;overflow:hidden;border:1px solid var(--article-line);border-radius:26px;background:#fff;box-shadow:0 18px 50px rgba(26,91,140,.09)}.featured-article img{width:100%;height:100%;min-height:390px;object-fit:cover}.featured-copy{padding:38px}.featured-copy .tag{color:var(--article-blue);font-weight:800;font-size:.78rem;letter-spacing:.08em}.featured-copy h2{margin:14px 0 12px;color:var(--article-ink);font-size:clamp(1.6rem,3vw,2.4rem);line-height:1.35}.featured-copy p{color:var(--article-muted);line-height:1.8}.featured-copy a{display:inline-flex;margin-top:16px;padding:12px 18px;border-radius:999px;background:#126fbd;color:#fff;font-weight:800}.seo-note{margin-top:24px;padding:24px;border-radius:20px;background:#edf8ff;color:#41617b;line-height:1.8}.seo-note strong{color:var(--article-ink)}@media(max-width:900px){.article-shell{grid-template-columns:1fr;gap:28px}.article-aside{position:static;order:-1}.article-nav{display:flex;gap:7px;overflow:auto;padding:12px}.article-nav strong{display:none}.article-nav a{flex:0 0 auto;border:1px solid var(--article-line);white-space:nowrap}.product-callout{display:none}.featured-article{grid-template-columns:1fr}.featured-article img{min-height:0;aspect-ratio:16/10}.iso-grid{grid-template-columns:1fr}}@media(max-width:620px){.article-hero{padding:42px 0 32px}.article-hero h1{font-size:2.15rem}.article-shell{padding-top:28px}.article-body p,.article-body li{font-size:1rem;line-height:1.85}.article-cover{border-radius:18px}.featured-copy{padding:25px}.article-actions a{width:100%;justify-content:center}}