.knowledge-hero{position:relative;min-height:610px;padding:168px 0 78px;overflow:hidden;border-bottom:1px solid var(--line2);isolation:isolate}
.knowledge-hero:before{content:"";position:absolute;inset:0;z-index:-2;background:var(--hero) center/cover no-repeat;filter:saturate(.68) contrast(1.06)}
.knowledge-hero:after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(5,8,9,.98) 0%,rgba(5,8,9,.9) 48%,rgba(5,8,9,.34) 82%),linear-gradient(0deg,rgba(5,8,9,.85),transparent 58%)}
.knowledge-hero h1{max-width:970px;margin-top:28px;font-size:clamp(42px,5.6vw,78px)}
.knowledge-hero .lead{max-width:760px;margin-top:28px;color:#c2ccc7;font-size:16px}
.knowledge-hero .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:36px}
.button.secondary{background:transparent;border:1px solid var(--line2);color:var(--ink)}
.button.secondary:hover{border-color:var(--amber);color:var(--amber)}
.hero-proof{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:48px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.16)}
.hero-proof div{min-height:96px;padding:20px;background:rgba(7,12,13,.82)}
.hero-proof b{display:block;font:700 18px var(--mono);color:var(--ink)}
.hero-proof span{display:block;margin-top:7px;color:var(--muted);font:9px var(--mono);letter-spacing:.13em;text-transform:uppercase}
.knowledge-intro{padding:82px 0;background:#dfe3df;color:#11191a;border-bottom:1px solid rgba(18,30,31,.18)}
.knowledge-intro-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:80px}
.knowledge-intro h2{font-size:clamp(30px,4vw,52px)}
.knowledge-intro-copy{display:grid;grid-template-columns:1fr 1fr;gap:32px;color:#52605c;font-size:14px}
.knowledge-intro-copy strong{color:#11191a}
.topic-section{padding:92px 0;border-bottom:1px solid var(--line)}
.topic-head{display:grid;grid-template-columns:.72fr 1.28fr;gap:80px;align-items:end;margin-bottom:42px}
.topic-head h2{font-size:clamp(30px,4vw,52px)}
.topic-head p{max-width:680px;color:var(--muted);font-size:14px}
.feature-link{display:grid;grid-template-columns:1.05fr .95fr;min-height:430px;border:1px solid var(--line2);background:#0d1415}
.feature-link figure{position:relative;overflow:hidden}
.feature-link img{width:100%;height:100%;object-fit:cover;filter:saturate(.72);transition:transform .45s,filter .45s}
.feature-link:hover img{transform:scale(1.025);filter:saturate(.95)}
.feature-copy{display:flex;flex-direction:column;padding:48px}
.feature-copy small,.entry-card small,.article-kicker{font:600 9px var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--cyan)}
.feature-copy h3{margin-top:48px;font-size:clamp(28px,3vw,42px)}
.feature-copy p{margin-top:20px;color:var(--muted);font-size:14px}
.feature-copy b{margin-top:auto;padding-top:28px;color:var(--amber);font:700 10px var(--mono);letter-spacing:.15em;text-transform:uppercase}
.entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.entry-card{display:flex;min-height:330px;flex-direction:column;padding:36px;background:linear-gradient(145deg,#121a1b,#090d0e)}
.entry-card h3{margin-top:55px;font-size:25px}
.entry-card p{margin-top:16px;color:var(--muted);font-size:13px}
.entry-card b{margin-top:auto;padding-top:30px;color:var(--amber);font:700 10px var(--mono);letter-spacing:.14em;text-transform:uppercase}
.article-shell{max-width:1180px;margin:auto;padding:0 34px}
.article-meta{display:flex;gap:24px;flex-wrap:wrap;margin-top:32px;color:var(--muted);font:9px var(--mono);letter-spacing:.14em;text-transform:uppercase}
.article-layout{display:grid;grid-template-columns:230px minmax(0,760px);gap:82px;align-items:start;padding:90px 0 110px}
.article-toc{position:sticky;top:108px;padding-top:8px}
.article-toc p{margin-bottom:18px;color:var(--amber);font:700 9px var(--mono);letter-spacing:.18em;text-transform:uppercase}
.article-toc a{display:block;padding:10px 0;border-top:1px solid var(--line);color:var(--muted);font-size:11px}
.article-toc a:hover{color:var(--ink)}
.article-body{min-width:0;font-size:16px;color:#bac4bf}
.article-body .answer{margin-bottom:58px;padding:28px 30px;border-left:3px solid var(--amber);background:#111819;color:#dbe2de;font-size:17px;line-height:1.8}
.article-body h2{margin:72px 0 24px;font-size:clamp(28px,3vw,42px);scroll-margin-top:120px}
.article-body h3{margin:36px 0 14px;font-size:20px;text-transform:none}
.article-body p{margin:0 0 22px;line-height:1.9}
.article-body ul,.article-body ol{margin:0 0 28px 20px;color:#b2bdb8}
.article-body li{margin:10px 0;padding-left:6px}
.article-body a{color:var(--amber);text-decoration:underline;text-decoration-color:rgba(224,161,59,.45);text-underline-offset:3px}
.article-body figure{margin:42px 0;border:1px solid var(--line2);background:#0e1516}
.article-body figure img{width:100%;max-height:510px;object-fit:cover}
.article-body figcaption{padding:15px 18px;color:var(--muted2);font:9px var(--mono);letter-spacing:.1em;text-transform:uppercase}
.decision-table{width:100%;max-width:100%;margin:30px 0 40px;border-collapse:collapse;border:1px solid var(--line2);font-size:13px}
.decision-table th,.decision-table td{padding:17px 16px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left}
.decision-table th{width:29%;color:var(--ink);font:700 10px var(--mono);letter-spacing:.08em;text-transform:uppercase}
.decision-table td{color:var(--muted)}
.decision-table tr:last-child th,.decision-table tr:last-child td{border-bottom:0}
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;margin:34px 0;background:var(--line);border:1px solid var(--line)}
.check-grid article{min-height:170px;padding:24px;background:#0e1516}
.check-grid b{font:700 10px var(--mono);letter-spacing:.13em;color:var(--cyan);text-transform:uppercase}
.check-grid p{margin-top:28px;color:var(--muted);font-size:13px}
.product-compare{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin:38px 0;background:var(--line);border:1px solid var(--line)}
.product-compare article{padding:26px;background:#0e1516}
.product-compare img{height:210px;width:100%;object-fit:contain;margin-bottom:20px}
.product-compare h3{margin:0;font-size:17px;text-transform:uppercase}
.product-compare p{margin-top:12px;color:var(--muted);font-size:12px}
.source-box{margin-top:70px;padding-top:28px;border-top:1px solid var(--line2)}
.source-box h2{margin:0 0 20px;font-size:22px}
.source-box li{font-size:12px;color:var(--muted)}
.related{padding:78px 0;border-top:1px solid var(--line);background:#0b1011}
.related h2{font-size:32px;margin-bottom:30px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.related-grid a{min-height:190px;padding:26px;background:#0e1516}
.related-grid small{font:600 9px var(--mono);letter-spacing:.16em;color:var(--cyan);text-transform:uppercase}
.related-grid strong{display:block;margin-top:45px;font-size:17px;line-height:1.25;text-transform:uppercase}
.role-split{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line)}
.role-split article{min-height:290px;padding:36px;background:#0e1516}
.role-split article:first-child{background:#dfe3df;color:#11191a}
.role-split small{font:700 9px var(--mono);letter-spacing:.17em;color:var(--amber)}
.role-split h3{margin-top:58px;font-size:28px}
.role-split p{margin-top:14px;color:var(--muted);font-size:13px}
.role-split article:first-child p{color:#53605c}
@media(max-width:960px){.knowledge-intro-grid,.topic-head{grid-template-columns:1fr;gap:24px}.feature-link{grid-template-columns:1fr}.feature-link figure{min-height:320px}.article-layout{grid-template-columns:1fr;gap:35px}.article-toc{position:static;display:grid;grid-template-columns:1fr 1fr;gap:0 24px}.article-toc p{grid-column:1/-1}.product-compare,.related-grid{grid-template-columns:1fr}.product-compare img{height:180px}.hero-proof{grid-template-columns:1fr 1fr}}
@media(max-width:700px){.knowledge-hero{min-height:620px;padding:132px 0 58px}.knowledge-hero h1{font-size:clamp(37px,10.5vw,52px)}.knowledge-hero .lead{font-size:14px}.hero-proof{margin-top:36px}.hero-proof div{min-height:88px;padding:16px}.knowledge-intro,.topic-section{padding:62px 0}.knowledge-intro-grid,.knowledge-intro-copy{grid-template-columns:1fr}.feature-copy{padding:30px 24px}.feature-copy h3{margin-top:34px}.entry-grid,.check-grid,.role-split{grid-template-columns:1fr}.entry-card{min-height:260px;padding:28px}.entry-card h3{margin-top:38px}.article-shell{padding:0 18px}.article-layout{padding:64px 0 80px}.article-toc{grid-template-columns:1fr}.article-body{font-size:15px}.article-body .answer{padding:22px 20px;font-size:15px}.decision-table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}.decision-table th{min-width:150px}.decision-table td{min-width:190px}.related{padding:58px 0}.hero-actions .button{width:100%;justify-content:center}}
@media(prefers-reduced-motion:reduce){.feature-link img{transition:none}}