:root{--primary:#0277bd;--primary-hover:#b45309;--text-main:#1e293b;--text-muted:#64748b;--bg-light:#f8fafc;--line:#e2e8f0;--card-shadow:0 10px 25px -5px #03a9f40d, 0 8px 10px -6px #03a9f40d;--card-shadow-hover:0 20px 25px -5px #03a9f426, 0 10px 10px -5px #03a9f41a}*{box-sizing:border-box;margin:0;padding:0}body{color:var(--text-main);-webkit-font-smoothing:antialiased;background:#f1f5f9;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.6}a{color:var(--primary);text-decoration:none;transition:color .2s,background-color .2s,border-color .2s}a:hover{color:var(--primary-hover)}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}header{z-index:100;backdrop-filter:blur(10px);background:#fffffff2;position:sticky;top:0;box-shadow:0 1px 2px #0000000d}.nav-inner{justify-content:space-between;align-items:center;gap:24px;padding:18px 0;display:flex}.logo{color:var(--text-main);white-space:nowrap;font-size:22px;font-weight:700}.logo span{color:#075985;background:#e0f2fe;border-radius:4px;margin-left:6px;padding:2px 8px;font-size:13px;font-weight:400}.nav-menu{align-items:center;gap:24px;list-style:none;display:flex}.nav-menu a{color:var(--text-muted);font-size:15px;font-weight:500}.nav-menu a:hover{color:var(--primary)}main{min-height:calc(100vh - 172px)}.blog-hero{border-bottom:1px solid var(--line);text-align:center;background:#fff;padding:72px 0 44px}.blog-hero h1{color:var(--text-main);margin-bottom:12px;font-size:34px;font-weight:800;line-height:1.25}.blog-hero p{max-width:680px;color:var(--text-muted);margin:0 auto;font-size:15px}.content-wrap{padding:56px 0 80px}.article-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;display:grid}.article-card{height:100%;box-shadow:var(--card-shadow);background:#fff;border:1px solid #e2e8f0;border-radius:8px;transition:transform .25s,box-shadow .25s;overflow:hidden}.article-card:hover{box-shadow:var(--card-shadow-hover);transform:translateY(-3px)}.article-card h2,.article-card p,.article-card .tag-list{margin-left:26px;margin-right:26px}.article-card h2{margin-top:18px;margin-bottom:10px;font-size:18px;line-height:1.35}.article-card p{color:var(--text-muted);font-size:14px}.article-cover-link{color:inherit;display:block}.article-cover{object-fit:cover;background:#e2e8f0;width:100%;height:150px;display:block}.meta{color:#94a3b8;font-size:14px}.tag-list{flex-wrap:wrap;gap:8px;margin-top:16px;margin-bottom:26px;display:flex}.tag{color:var(--primary);background:#03a9f41a;border-radius:4px;padding:3px 9px;font-size:12px;font-weight:600}.article-shell{max-width:960px;box-shadow:var(--card-shadow);background:#fff;border:1px solid #e2e8f0;border-radius:8px;margin:0 auto;padding:clamp(24px,4vw,44px)}.article-head{border-bottom:1px solid #e2e8f0;grid-template-columns:minmax(0,1fr) 280px;align-items:center;gap:32px;padding-bottom:30px;display:grid}.article-shell h1{margin:0 0 14px;font-size:clamp(28px,4vw,38px);line-height:1.25}.article-lead{color:var(--text-muted);font-size:16px}.article-meta{color:var(--text-muted);flex-wrap:wrap;gap:8px 16px;margin-top:12px;font-size:14px;display:flex}.article-hero-image{object-fit:cover;background:#e2e8f0;border-radius:8px;width:100%;height:150px;display:block}.article-body{color:#334155;max-width:720px;margin-top:34px;font-size:17px}.article-body h2{margin:36px 0 12px;font-size:26px;line-height:1.35}.article-body h3{margin:28px 0 10px;font-size:21px}.article-body p,.article-body ul,.article-body ol{margin:0 0 18px}.article-body ul,.article-body ol{padding-left:1.4em}.article-body strong{color:#0f172a}.back-link{margin-bottom:24px;font-weight:700;display:inline-flex}footer{color:#cbd5e1;text-align:center;background-color:#0f172a;padding:48px 0;font-size:13px}.footer-brand{color:#f8fafc;margin-bottom:16px;font-size:14px;font-weight:600}footer p{margin-bottom:10px}footer a{color:#7dd3fc;text-underline-offset:3px;text-decoration:underline}footer a:hover{color:#fff}@media (width<=760px){.nav-inner{text-align:center;flex-direction:column;gap:15px}.nav-menu{flex-wrap:wrap;justify-content:center;gap:15px}.article-grid{grid-template-columns:1fr}.blog-hero{padding:52px 0 34px}.blog-hero h1{font-size:30px}.article-cover{height:132px}.article-head{grid-template-columns:1fr;gap:22px}.article-hero-image{height:138px}}.skip-link{z-index:2000;color:#0277bd;background:#fff;border:2px solid #0277bd;border-radius:6px;padding:10px 16px;position:fixed;top:8px;left:12px;transform:translateY(-160%)}.skip-link:focus{transform:translateY(0)}:focus-visible{outline-offset:3px;outline:3px solid #0277bd}#main-content{scroll-margin-top:96px}