:root{--navy:#0B1929;--navy-light:#132843;--steel:#1A3352;--accent:#4A9EFF;--text:#E8ECF0;--text-dim:#8A9BB0;--border:rgba(74,158,255,0.15);--dark:#060D18}
        *{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}
        body{font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;background:var(--navy);color:var(--text);line-height:1.7}
        nav{position:fixed;top:0;left:0;right:0;z-index:1000;padding:0 60px;height:72px;display:flex;align-items:center;justify-content:space-between;background:rgba(11,25,41,.97);backdrop-filter:blur(20px);border-bottom:1px solid var(--border)}
        .logo{display:flex;align-items:center;gap:12px;text-decoration:none}.logo-mark{width:36px;height:36px;background:linear-gradient(135deg,var(--accent) 0%,#2A6FCC 100%);clip-path:polygon(50% 0%,100% 25%,100% 75%,50% 100%,0% 75%,0% 25%)}.logo-name{font-size:1.05em;font-weight:800;color:#fff;letter-spacing:2px}.logo-sub{font-size:.6em;color:var(--accent);font-weight:500;letter-spacing:1px}
        .nav-links{display:flex;gap:36px;list-style:none}.nav-links a{color:var(--text-dim);text-decoration:none;font-size:.82em;font-weight:500;transition:color .3s}.nav-links a:hover,.nav-links a.active{color:var(--accent)}
        .nav-cta{background:var(--accent);color:var(--navy);padding:10px 22px;font-weight:700;font-size:.82em;text-decoration:none;border-radius:4px}
        .article-hero{min-height:55vh;display:flex;align-items:center;position:relative;overflow:hidden;padding:100px 60px 50px;background:var(--navy)}
        .article-hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(74,158,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(74,158,255,.04) 1px,transparent 1px);background-size:60px 60px;mask-image:radial-gradient(ellipse 80% 80% at 50% 50%,black 40%,transparent 100%)}
        .article-hero-inner{max-width:1200px;margin:0 auto;position:relative;width:100%}
        .article-meta{font-size:.72em;font-weight:700;color:var(--accent);letter-spacing:2px;text-transform:uppercase;margin-bottom:12px}
        .article-hero h1{font-size:2.5em;font-weight:900;color:#fff;line-height:1.2;margin-bottom:16px;letter-spacing:-.5px}
        .article-hero h1 em{color:var(--accent);font-style:normal}
        .article-sub{font-size:1em;color:var(--text-dim);max-width:620px;line-height:1.8}
        .article-byline{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:16px}
        .article-byline-item{font-size:.75em;color:var(--text-dim);font-weight:500}
        .breadcrumb{max-width:1200px;margin:0 auto;padding:0 60px;display:flex;align-items:center;gap:8px;font-size:.75em;color:var(--text-dim)}
        .breadcrumb a{color:var(--accent);text-decoration:none}
        .article-body{max-width:860px;margin:0 auto;padding:60px 30px 80px}
        .article-body h2{font-size:1.6em;font-weight:800;color:#fff;margin:48px 0 16px;border-bottom:1px solid rgba(74,158,255,.2);padding-bottom:10px}
        .article-body h3{font-size:1.15em;font-weight:700;color:#fff;margin:32px 0 12px}
        .article-body p{color:var(--text-dim);font-size:.95em;margin-bottom:18px;line-height:1.8}
        .article-body ul,.article-body ol{color:var(--text-dim);font-size:.95em;margin:0 0 18px 24px;line-height:1.9}
        .article-body li{margin-bottom:6px}
        .article-body strong{color:#fff;font-weight:700}
        .article-toc{background:var(--navy-light);border:1px solid var(--border);border-radius:8px;padding:24px 28px;margin:32px 0}
        .article-toc h4{font-size:.85em;font-weight:700;color:var(--accent);letter-spacing:1px;text-transform:uppercase;margin-bottom:12px}
        .article-toc ol{list-style:none;margin:0;padding:0}
        .article-toc li{margin-bottom:8px}
        .article-toc a{color:var(--text-dim);text-decoration:none;font-size:.88em;display:flex;align-items:center;gap:8px}
        .article-toc a:hover{color:var(--accent)}
        .article-toc .toc-num{color:var(--accent);font-weight:700;font-size:.8em;min-width:20px}
        .problem-card{background:var(--navy-light);border:1px solid var(--border);border-radius:8px;padding:24px 28px;margin:20px 0}
        .problem-card .prob-num{font-size:.7em;font-weight:900;color:var(--accent);letter-spacing:2px;text-transform:uppercase;margin-bottom:8px;display:flex;align-items:center;gap:8px}
        .problem-card .prob-num::before{content:'';width:16px;height:2px;background:var(--accent);display:inline-block}
        .problem-card h3{font-size:1.05em;font-weight:800;color:#fff;margin-bottom:10px}
        .problem-card .prob-symptoms{color:var(--text-dim);font-size:.88em;border-left:3px solid rgba(220,60,60,.5);padding-left:12px;margin-bottom:12px}
        .problem-card .prob-cause h4,.problem-card .prob-prevent h4{font-size:.78em;font-weight:700;color:var(--accent);letter-spacing:1px;text-transform:uppercase;margin-bottom:6px}
        .problem-card .prob-cause p,.problem-card .prob-prevent p{font-size:.88em;color:var(--text-dim);margin-bottom:10px}
        .highlight-box{background:var(--navy-light);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:6px;padding:20px 24px;margin:28px 0}
        .highlight-box h4{font-size:.9em;font-weight:700;color:var(--accent);margin-bottom:10px}
        .highlight-box p{font-size:.88em;color:var(--text-dim);margin-bottom:0;line-height:1.65}
        .internal-link{color:var(--accent);text-decoration:none;border-bottom:1px dashed rgba(74,158,255,.4)}
        .internal-link:hover{border-color:var(--accent)}
        .faq-section{background:var(--dark);border-top:1px solid var(--border);padding:60px 30px;max-width:860px;margin:60px auto 0}
        .faq-section h2{font-size:1.5em;font-weight:800;color:#fff;margin-bottom:28px;text-align:center}
        .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
        .faq-item{background:var(--navy-light);border:1px solid var(--border);border-radius:8px;overflow:hidden}
        .faq-q{width:100%;background:none;border:none;padding:16px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px;cursor:pointer;text-align:left;transition:background .2s}
        .faq-q:hover{background:rgba(74,158,255,.05)}
        .faq-q span{font-size:.86em;font-weight:600;color:#fff;line-height:1.4}
        .faq-q::after{content:'+';font-size:1.3em;font-weight:300;color:var(--accent);flex-shrink:0;transition:transform .3s}
        .faq-q.active::after{transform:rotate(45deg)}
        .faq-a{display:none;padding:0 20px 16px;font-size:.82em;color:var(--text-dim);line-height:1.7;border-top:1px solid rgba(255,255,255,.04);padding-top:12px}
        .faq-a.open{display:block}
        .solutions-cta{background:linear-gradient(135deg,rgba(74,158,255,.08) 0%,rgba(74,158,255,.03) 100%);border-top:1px solid rgba(74,158,255,.2);padding:60px 30px;max-width:860px;margin:0 auto}
        .solutions-cta h3{font-size:1.3em;font-weight:800;color:#fff;margin-bottom:10px;text-align:center}
        .solutions-cta>p{color:var(--text-dim);font-size:.88em;text-align:center;margin-bottom:24px}
        .solutions-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
        .sol-card{background:var(--navy-light);border:1px solid var(--border);border-radius:6px;padding:18px 16px;text-align:center;text-decoration:none;transition:all .3s;display:block}
        .sol-card:hover{border-color:var(--accent);transform:translateY(-2px)}
        .sol-card .icon{font-size:1.8em;margin-bottom:10px;display:block}
        .sol-card h4{font-size:.82em;font-weight:700;color:#fff;margin-bottom:5px}
        .sol-card p{color:var(--text-dim);font-size:.72em;margin-bottom:0}
        .final-cta{text-align:center;padding:48px 30px 0;max-width:860px;margin:0 auto}
        .final-cta p{color:var(--text-dim);font-size:.9em;margin-bottom:20px}
        .btn-primary{background:var(--accent);color:var(--navy);padding:12px 24px;font-weight:700;font-size:.88em;border-radius:4px;text-decoration:none;transition:all .3s;display:inline-flex;align-items:center;gap:8px}
        .btn-primary:hover{background:var(--accent-light);transform:translateY(-2px);box-shadow:0 6px 20px rgba(74,158,255,.3)}
        footer{background:var(--dark);border-top:1px solid var(--border);padding:48px 60px 28px}
        .footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px;margin-bottom:36px}
        .footer-brand p{color:var(--text-dim);font-size:.82em;line-height:1.7;margin-bottom:16px}
        .footer-col h4{font-size:.75em;font-weight:700;color:var(--text-dim);letter-spacing:2px;text-transform:uppercase;margin-bottom:12px}
        .footer-col ul{list-style:none}.footer-col li{margin-bottom:7px}
        .footer-col a{color:var(--text-dim);text-decoration:none;font-size:.84em;transition:color .3s}
        .footer-col a:hover{color:var(--accent)}
        .footer-bottom{border-top:1px solid rgba(255,255,255,.06);padding-top:18px;display:flex;justify-content:space-between;align-items:center}
        .footer-bottom p{color:var(--text-dim);font-size:.76em}
        .footer-bottom a{color:var(--accent);text-decoration:none}
        @media(max-width:768px){nav{padding:0 20px}.nav-links{display:none}.article-hero{padding:100px 20px 40px}.breadcrumb{padding:0 20px}.article-body{padding:40px 20px 60px}.faq-section,.solutions-cta{padding:40px 20px}.faq-grid,.solutions-grid{grid-template-columns:1fr}.footer-top{grid-template-columns:1fr}.footer-bottom{flex-direction:column;gap:8px;text-align:center}}