:root{--navy-900: #071429;--navy-800: #0a1f3a;--navy-700: #10294c;--navy: var(--navy-800);--blue-600: #1f5edb;--blue-500: #2e7dff;--blue-100: #dbe7ff;--blue: var(--blue-500);--gold-500: #f5b62e;--gold-600: #dd9d14;--bg: #f2f5fa;--surface: #ffffff;--ink: #16233a;--ink-muted: #5b6b83;--line: #e3e9f2;--danger: #c0392b;--radius: 14px;--radius-sm: 9px;--shadow-1: 0 1px 2px rgba(7, 20, 41, .06), 0 2px 8px rgba(7, 20, 41, .06);--shadow-2: 0 4px 10px rgba(7, 20, 41, .1), 0 12px 28px rgba(7, 20, 41, .1);--ring: 0 0 0 3px rgba(46, 125, 255, .35)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:radial-gradient(1200px 400px at 80% -180px,rgba(46,125,255,.1),transparent 60%),var(--bg);color:var(--ink);line-height:1.55;-webkit-font-smoothing:antialiased}h1{font-size:clamp(1.9rem,3.5vw,2.6rem);letter-spacing:-.02em;line-height:1.15;margin:0 0 .35em}h2{font-size:1.18rem;letter-spacing:-.01em;margin:0 0 .6rem;display:flex;align-items:center;gap:.55rem}.card>h2:before{content:"";width:4px;height:1.05em;border-radius:2px;background:linear-gradient(180deg,var(--gold-500),var(--gold-600));flex:0 0 auto}.muted{color:var(--ink-muted);opacity:1}header{position:sticky;top:0;z-index:20;background:linear-gradient(135deg,var(--navy-900) 0%,var(--navy-700) 100%);color:#fff;padding:.7rem 1.4rem;display:flex;align-items:center;gap:1.25rem;border-bottom:2px solid var(--gold-500);box-shadow:0 2px 14px #07142959}header .brand{font-weight:800;font-size:1.15rem;letter-spacing:-.01em;display:inline-flex;align-items:center;gap:.5rem}header nav{display:flex;gap:.35rem;margin-left:auto;flex-wrap:wrap}header a{color:#cfe1ff;text-decoration:none;padding:.35rem .8rem;border-radius:999px;font-weight:500;transition:background .15s ease,color .15s ease}header a:hover{color:#fff;background:#ffffff14}header a.active{color:var(--navy-900);background:var(--gold-500);font-weight:700}main{max-width:960px;margin:2.25rem 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