:root{--navy:#071a33;--blue:#0b63ce;--blue2:#0e8bea;--ink:#10213b;--muted:#64748b;--line:#dce7f3;--bg:#f5f9fd;--white:#fff;--shadow:0 12px 35px rgba(8,35,70,.09)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}a{text-decoration:none;color:inherit}.container{width:min(1400px,94%);margin:auto}.site-header{background:var(--navy);color:#fff;position:sticky;top:0;z-index:20;box-shadow:0 2px 14px #001a3a33}.topbar{display:grid;grid-template-columns:260px 1fr auto;gap:28px;align-items:center;padding:14px 0}.brand{font-weight:800;font-size:21px;letter-spacing:-.03em;display:flex;flex-direction:column;line-height:1.12}.brand-title{display:block}.brand small{display:block;color:#62b9ff;font-size:12px;letter-spacing:.04em;text-transform:none;font-weight:700;margin-top:4px}.search{display:flex;background:#fff;border-radius:8px;overflow:hidden;max-width:620px;width:100%;margin:auto}.search input{border:0;outline:0;padding:12px 16px;flex:1;font-size:14px}.search button{width:48px;border:0;background:#eaf3ff;color:var(--blue);font-size:18px}.toplinks{display:flex;gap:20px;font-size:13px;white-space:nowrap}.topic-nav{background:#07539e;border-top:1px solid #164f88;display:grid;grid-template-columns:repeat(6,1fr)}.topic-nav a{padding:13px 12px;text-align:center;color:#fff;font-weight:700;border-right:1px solid #ffffff18;transition:.2s}.topic-nav a:hover,.topic-nav a.active{background:#0b76d8}.hero{padding:26px 0 18px}.hero-grid{display:grid;grid-template-columns:210px 1fr;gap:18px}.sidebar,.quick-card,.subscribe-card{background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow)}.sidebar{padding:17px;align-self:start}.sidebar h3{font-size:15px;color:var(--blue);margin:0 0 10px}.side-list{list-style:none;padding:0;margin:0}.side-list li a{display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px solid #edf2f7;font-size:12px}.side-list li 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rgba(10,50,90,.06);display:flex;flex-direction:column;min-height:260px;transition:transform .2s,box-shadow .2s}.knowledge-card:hover{transform:translateY(-4px);box-shadow:0 15px 32px rgba(10,50,90,.12)}.icon{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;font-weight:800;margin-bottom:13px;background:#e8f2ff;color:var(--blue)}.knum{font-size:11px;color:var(--blue);font-weight:800}.knowledge-card h3{margin:3px 0 6px;font-size:20px}.knowledge-card p{font-size:12px;color:var(--muted);margin:0 0 15px}.pill-link{margin-top:auto;border:1px solid #a9c9ef;border-radius:6px;padding:8px 10px;text-align:center;color:var(--blue);font-weight:700;font-size:12px}.articles{margin-top:18px;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;box-shadow:var(--shadow)}.article-row{display:grid;grid-template-columns:42px 1fr auto;gap:12px;align-items:center;padding:13px 16px;border-top:1px solid #edf2f7}.article-row:first-child{border-top:0}.article-icon{width:34px;height:34px;border-radius:7px;background:#e9f3ff;display:grid;place-items:center;color:var(--blue);font-weight:800}.article-row h4{margin:0;font-size:14px}.article-row p{margin:2px 0 0;font-size:12px;color:var(--muted)}.article-date{font-size:11px;color:var(--muted)}.cta{margin-top:18px;background:#eaf4ff;border:1px solid #cfe4fb;border-radius:10px;padding:20px;display:flex;justify-content:space-between;align-items:center}.cta h3{margin:0;font-size:17px}.cta p{margin:2px 0 0;color:var(--muted);font-size:12px}.cta a{background:#fff;border:1px solid #8dbdf0;color:var(--blue);padding:9px 14px;border-radius:6px;font-weight:700;font-size:12px}.refs{margin-top:22px;padding:22px 0}.ref-links{display:flex;flex-wrap:wrap;gap:8px}.ref-links a{background:#fff;border:1px solid var(--line);padding:8px 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@media(max-width:1050px){.knowledge-grid{grid-template-columns:repeat(3,1fr)}.topbar{grid-template-columns:1fr auto}.search{grid-column:1/-1;grid-row:2;max-width:none}.hero-grid,.content-grid,.article-layout{grid-template-columns:1fr}.sidebar,.article-nav{position:static}.left-stack{display:grid;grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:700px){.toplinks{display:none}.topic-nav{grid-template-columns:repeat(3,1fr)}.hero-banner{padding:28px 22px}.hero-banner h1{font-size:31px}.knowledge-grid{grid-template-columns:1fr}.left-stack{grid-template-columns:1fr}.article-content{padding:24px 20px}.about-stats{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr}.copyright{flex-direction:column;gap:5px}}