.breadcrumbs{padding:14px 0 0;color:var(--muted, #64748b);font-size:.8rem;font-weight:600}.breadcrumbs .container{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.breadcrumbs a{color:var(--accent);text-decoration:none}.breadcrumbs a:hover{text-decoration:underline}.breadcrumbs span[aria-hidden]{color:var(--accent-border)}:root{--accent: #1d4ed8;--accent-strong: #1e40af;--accent-deep: #16308c;--accent-soft: #e8f0ff;--accent-border: #c7d8fb;--accent-glow: rgba(29, 78, 216, .15);--sky: #7dd3fc;--navy: #0f1f3d;--navy-2: #17315f;--navy-deep: #0b1830;--bg: #f5f7fa;--surface: #ffffff;--surface-soft: #eef3f9;--surface-tint: #f8fafc;--ink: #101b30;--body: #2e3c52;--muted: #64748b;--muted-strong: #475569;--border: #e2e8f0;--border-strong: #cbd5e1;--hairline: #edf1f6;--warn-bg: #fffbeb;--warn-border: #fcd34d;--warn-ink: #92400e;--shadow-sm: 0 1px 2px rgba(15, 31, 61, .05), 0 2px 6px rgba(15, 31, 61, .04);--shadow-md: 0 12px 28px rgba(15, 31, 61, .1), 0 2px 6px rgba(15, 31, 61, .06);--shadow-lg: 0 24px 48px rgba(15, 31, 61, .14);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--content-width: 900px;--header-width: 1120px}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:96px;text-size-adjust:100%;-webkit-text-size-adjust:100%}body{margin:0;min-height:100vh;background:radial-gradient(1100px 420px at 50% -180px,rgba(29,78,216,.07),transparent 70%),var(--bg);color:var(--body);font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:16px;line-height:1.7;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:rgba(29,78,216,.12)}::selection{background:#1d4ed82e;color:var(--ink)}:focus-visible{outline:2px solid var(--accent);outline-offset:3px}img{max-width:100%;height:auto}.skip-link{position:fixed;top:-100px;left:16px;z-index:200;padding:10px 16px;background:var(--surface);color:var(--accent-strong);border:1px solid var(--border-strong);border-radius:var(--radius-sm);font-size:.9rem;font-weight:700;text-decoration:none;box-shadow:var(--shadow-md);transition:top .16s ease}.skip-link:focus{top:16px}.container{width:min(100% - 40px,var(--content-width));margin-inline:auto}.section{padding:48px 0 72px}main{display:block;min-height:62vh}.site-header{position:sticky;top:0;z-index:100;background:linear-gradient(135deg,var(--navy-deep) 0%,var(--navy) 45%,var(--navy-2) 100%);box-shadow:0 8px 24px #0b18302e}.site-header:after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:linear-gradient(90deg,transparent,rgba(125,211,252,.7) 30%,rgba(125,211,252,.7) 70%,transparent)}.site-header .container{width:min(100% - 40px,var(--header-width))}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px 0}.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:1.1rem;font-weight:800;letter-spacing:-.015em;line-height:1.2;text-decoration:none;white-space:nowrap}.brand:before{content:"";width:12px;height:18px;flex:0 0 auto;border:2px solid var(--sky);border-radius:3px;background:linear-gradient(to top,rgba(125,211,252,.9) 42%,transparent 42%)}.nav{display:flex;align-items:center;justify-content:flex-end;gap:2px;overflow-x:auto;scrollbar-width:none}.nav::-webkit-scrollbar{display:none}.nav a{color:#cfdff2;font-size:.88rem;font-weight:600;line-height:1.2;padding:8px 12px;border-radius:var(--radius-sm);text-decoration:none;white-space:nowrap;transition:background-color .14s ease,color .14s ease}.nav a:hover{background:#ffffff1f;color:#fff}.nav a:focus-visible{outline-color:#93c5fd}h1,h2,h3,h4,h5,h6{color:var(--navy);line-height:1.22;text-wrap:balance;overflow-wrap:break-word}h1{position:relative;margin:0 0 22px;padding-bottom:18px;font-size:clamp(2.05rem,4.2vw + .5rem,2.75rem);font-weight:800;letter-spacing:-.032em;line-height:1.14}h1:after{content:"";position:absolute;left:0;bottom:0;width:68px;height:4px;border-radius:2px;background:linear-gradient(90deg,var(--accent),#93bdf5)}h2{margin:46px 0 16px;padding-bottom:12px;border-bottom:1px solid var(--hairline);font-size:clamp(1.42rem,1.4vw + .95rem,1.72rem);font-weight:700;letter-spacing:-.018em;scroll-margin-top:92px}h2:before{content:"";display:block;width:36px;height:3px;margin:0 0 12px;border-radius:2px;background:linear-gradient(90deg,var(--accent),var(--accent-soft))}h3{margin:32px 0 10px;font-size:1.17rem;font-weight:700;letter-spacing:-.012em;scroll-margin-top:88px}h4{margin:24px 0 8px;font-size:1.02rem;font-weight:700;scroll-margin-top:88px}h5,h6{margin:22px 0 8px;font-weight:700;scroll-margin-top:88px}p{margin:0 0 1.15em}strong{color:var(--ink);font-weight:700}.lead{margin:0 0 28px;padding:2px 0 2px 18px;border-left:4px solid var(--accent);color:#38475f;font-size:1.13rem;line-height:1.72}.byline{margin:0 0 14px;color:var(--muted-strong);font-size:.72rem;font-weight:750;letter-spacing:.09em;line-height:1.5;text-transform:uppercase;font-variant-numeric:tabular-nums}.byline:before{content:"";display:inline-block;vertical-align:middle;width:16px;height:2px;margin-right:9px;border-radius:1px;background:var(--accent)}.muted{color:var(--muted);font-size:.87rem;line-height:1.6}a{color:var(--accent);text-decoration:underline;text-decoration-color:#1d4ed84d;text-decoration-thickness:1px;text-underline-offset:.2em;transition:color .14s ease,text-decoration-color .14s ease}a:hover{color:var(--accent-strong);text-decoration-color:currentColor}code,kbd,samp{border:1px solid #dbe6f5;border-radius:5px;background:#eef3f9;padding:.14em .4em;color:#1d3f9e;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,Liberation Mono,monospace;font-size:.86em}pre{margin:24px 0;padding:18px 20px;overflow-x:auto;border:1px solid rgba(255,255,255,.06);border-radius:var(--radius-md);background:var(--navy-deep);color:#dbe7f7;font-size:.88rem;line-height:1.65;box-shadow:var(--shadow-sm)}pre code{border:0;background:transparent;padding:0;color:inherit;font-size:inherit}blockquote{margin:24px 0;padding:16px 20px;border-left:4px solid var(--accent);border-radius:0 var(--radius-md) var(--radius-md) 0;background:var(--surface-soft);color:var(--muted-strong)}blockquote>:first-child{margin-top:0}blockquote>:last-child{margin-bottom:0}hr{height:1px;margin:32px 0;border:0;background:linear-gradient(90deg,transparent,var(--border-strong),transparent)}ul,ol{margin:0 0 1.3em;padding-left:1.5em}li{margin:.45em 0}li>ul,li>ol{margin-top:.45em;margin-bottom:.45em}ul{list-style:disc}ul ul{list-style:circle}ul ul ul{list-style:square}ol{list-style:decimal}li::marker{color:var(--accent);font-weight:700}dl{margin:0 0 1.4em}details{margin:18px 0;padding:16px 18px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface);box-shadow:var(--shadow-sm);transition:border-color .14s ease}details[open]{border-color:var(--accent-border)}summary{cursor:pointer;color:var(--navy);font-weight:700;transition:color .14s ease}summary:hover{color:var(--accent-strong)}summary::marker{color:var(--accent);font-size:.9em}details[open] summary{margin-bottom:10px}.faq-item{margin-bottom:20px}.faq-item h3{margin-bottom:6px}.takeaways{margin:26px 0;padding:20px 22px 18px;border:1px solid var(--accent-border);border-left:4px solid var(--accent);border-radius:var(--radius-md);background:linear-gradient(135deg,#f0f5ff,#fbfdff);box-shadow:var(--shadow-sm)}.takeaways>:first-child{margin-top:0}.takeaways>:last-child{margin-bottom:0}.takeaways strong{color:var(--navy)}.takeaways ul,.takeaways ol{margin-bottom:0}.box{margin:24px 0;padding:18px 20px 16px;border:1px solid var(--border);border-left:4px solid var(--border-strong);border-radius:var(--radius-md);background:var(--surface-tint)}.box>:first-child{margin-top:0}.box>:last-child{margin-bottom:0}.evidence{margin:24px 0;padding:18px 20px 16px;border:1px dashed var(--border-strong);border-radius:var(--radius-md);background:#fbfcfe}.evidence>:first-child{margin-top:0}.evidence>:last-child{margin-bottom:0}.evidence strong{color:var(--navy)}table{display:block;width:100%;margin:26px 0;overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius-md);border-collapse:separate;border-spacing:0;background:var(--surface);box-shadow:var(--shadow-sm);font-variant-numeric:tabular-nums lining-nums;font-size:.93rem;line-height:1.55;-webkit-overflow-scrolling:touch}caption{padding:12px 16px 10px;border-bottom:1px solid var(--hairline);color:var(--muted);font-size:.8rem;text-align:left}th,td{padding:12px 16px;border-bottom:1px solid var(--hairline);text-align:left;vertical-align:top}thead th{background:linear-gradient(180deg,#14294e,var(--navy));border-bottom:2px solid var(--accent);color:#fff;font-size:.7rem;font-weight:750;letter-spacing:.07em;line-height:1.4;padding:13px 16px;text-transform:uppercase;white-space:nowrap}tbody th{background:#f4f7fb;color:var(--navy);font-weight:700}tbody tr:last-child th,tbody tr:last-child td{border-bottom:0}tbody tr:nth-child(2n) td{background:#fafbfd}tbody tr:nth-child(2n) th{background:#eef3f9}tbody tr:hover td{background:#eef4ff}tbody tr:hover th{background:#e2ecfd}table a{white-space:normal}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin:26px 0}.card{position:relative;padding:22px 22px 20px;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-sm);transition:border-color .16s ease,box-shadow .16s ease,transform .16s ease}.card:before{content:"";position:absolute;top:-1px;left:-1px;right:-1px;height:3px;border-radius:var(--radius-lg) var(--radius-lg) 0 0;background:linear-gradient(90deg,var(--accent),#60a5fa);opacity:0;transition:opacity .16s ease}.card:hover{border-color:var(--accent-border);box-shadow:var(--shadow-md);transform:translateY(-3px)}.card:hover:before{opacity:1}.card h3{margin:0 0 10px;font-size:1.08rem;letter-spacing:-.01em}.card h3 a{color:var(--navy);text-decoration:none}.card h3 a:hover{color:var(--accent-strong);text-decoration:underline}.card p{margin:0;color:var(--muted-strong);font-size:.93rem;line-height:1.6}.cta,.cta-outline{display:inline-block;padding:11px 20px;border-radius:var(--radius-sm);font-size:.92rem;font-weight:700;line-height:1.2;text-decoration:none;transition:background-color .14s ease,border-color .14s ease,color .14s ease,transform .14s ease,box-shadow .14s ease}.cta{background:var(--accent);color:#fff;box-shadow:0 4px 12px #1d4ed840}.cta:hover{background:var(--accent-strong);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 8px 20px #1d4ed84d}.cta-outline{border:1px solid var(--accent);color:var(--accent)}.cta-outline:hover{background:var(--accent-soft);color:var(--accent-strong);text-decoration:none}.tech-review{margin-top:44px;padding-top:18px;border-top:1px dashed var(--border-strong);color:var(--muted);font-size:.85rem;line-height:1.6}.site-footer{margin-top:72px;padding:44px 0 48px;border-top:4px solid var(--accent);background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 100%);color:#d4e0ee}.site-footer .container{width:min(100% - 40px,var(--header-width))}.site-footer p{margin:0 0 10px;max-width:78ch;font-size:.88rem;line-height:1.7}.site-footer p:last-child{margin-bottom:0}.site-footer a{color:#bcd3ff;text-decoration:underline;text-decoration-color:#bcd3ff66;text-underline-offset:.18em}.site-footer a:hover{color:#fff;text-decoration-color:currentColor}.site-footer a:focus-visible{outline-color:#93c5fd}.site-footer .muted{color:#8fa3bd;font-size:.82rem}@media(max-width:760px){.container,.site-header .container,.site-footer .container{width:min(100% - 32px,var(--content-width))}.site-header .container,.site-footer .container{width:min(100% - 32px,var(--header-width))}.header-inner{flex-direction:column;align-items:stretch;gap:8px;padding:12px 0 10px}.brand{justify-content:center}.nav{justify-content:flex-start;margin-inline:-6px;padding:0 6px 2px;mask-image:linear-gradient(90deg,#000 88%,transparent);-webkit-mask-image:linear-gradient(90deg,#000 88%,transparent)}.section{padding:36px 0 48px}h1{font-size:clamp(1.8rem,7.2vw,2.3rem);padding-bottom:14px}h2{margin-top:36px}.lead{padding-left:14px;font-size:1.05rem}.byline{font-size:.68rem;letter-spacing:.08em}.card-grid{grid-template-columns:1fr;gap:16px}.takeaways,.box,.evidence{padding:18px 18px 16px}table{font-size:.86rem}th,td{padding:10px 12px}pre{padding:16px;font-size:.86rem}.site-footer{padding:36px 0 40px}}@media(max-width:520px){.byline{letter-spacing:.07em}h1{font-size:clamp(1.7rem,8.5vw,2.05rem)}h2{font-size:1.38rem}.lead{font-size:1.02rem}thead th{white-space:normal;letter-spacing:.05em;padding:10px 12px}th,td{padding:9px 10px}.takeaways,.box,.evidence{border-left-width:3px;padding:16px 15px 14px}.site-footer p{font-size:.84rem}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}@media print{body{background:#fff;color:#000}.site-header,.site-footer,.skip-link{display:none}.section{padding:0}.takeaways,.box,.evidence,.card,table,pre,details{box-shadow:none}table{display:table;overflow:visible}a{color:#000}}