:root{--navy:#061329;--navy2:#0b2043;--ink:#0d1930;--muted:#5e6c82;--line:#d9e1ec;--cyan:#18bce5;--gold:#d8a938;--paper:#f6f8fb;--white:#fff;--radius:18px;--shadow:0 18px 50px rgba(7,22,49,.10)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:16px;line-height:1.7}a{color:inherit}.wrap{width:min(1180px,calc(100% - 40px));margin:auto}.site-header{position:sticky;top:0;z-index:10;background:rgba(6,19,41,.96);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.1)}.nav{height:72px;display:flex;align-items:center;justify-content:space-between;color:#fff}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:800;letter-spacing:-.02em}.brand-mark{width:38px;height:38px;border:2px solid var(--cyan);border-radius:50%;display:grid;place-items:center;color:var(--gold);font-size:18px}.brand small{display:block;color:#9eb3d0;font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase}.nav-links{display:flex;gap:22px;align-items:center}.nav-links a{text-decoration:none;color:#dbe8fb;font-weight:650}.nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:11px 18px;background:linear-gradient(135deg,var(--cyan),#59dbff);color:#04213b!important;text-decoration:none;font-weight:800;border:0}.hero{background:radial-gradient(circle at 82% 12%,rgba(24,188,229,.25),transparent 30%),linear-gradient(140deg,var(--navy),#0a2550);color:#fff;padding:72px 0 64px;overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:52px;align-items:center}.eyebrow{color:#72def7;font-weight:800;text-transform:uppercase;letter-spacing:.13em;font-size:13px}.hero h1{font-size:clamp(2.55rem,6vw,5.2rem);line-height:1.02;letter-spacing:-.055em;margin:14px 0 22px;max-width:850px}.hero 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p{color:#34445c}.answer{border-left:4px solid var(--cyan);background:#ecfaff;padding:20px 22px;border-radius:0 14px 14px 0;margin:26px 0}.answer strong{color:#087f9d}.checklist,.steps{padding:0;list-style:none}.checklist li{padding:10px 0 10px 30px;position:relative;border-bottom:1px solid #edf1f6}.checklist li:before{content:'✓';position:absolute;left:0;color:#0799bb;font-weight:900}.steps{counter-reset:step}.steps li{counter-increment:step;padding:0 0 22px 54px;position:relative}.steps li:before{content:counter(step);position:absolute;left:0;top:0;width:36px;height:36px;border-radius:12px;background:var(--navy2);color:#fff;display:grid;place-items:center;font-weight:800}.steps strong{display:block}.note{background:#fff8e8;border:1px solid #efdb9e;border-radius:14px;padding:20px}.faq details{border-top:1px solid var(--line);padding:15px 0}.faq summary{cursor:pointer;font-weight:800}.sidebar{position:sticky;top:96px}.side-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px;margin-bottom:18px}.side-card h3{margin:0 0 12px;line-height:1.25}.side-card ul{padding-left:20px;color:#52637a}.side-cta{background:linear-gradient(145deg,#0b2449,#0a3b68);color:#fff}.side-cta p{color:#bed0e8}.related{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.related a{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;text-decoration:none;font-weight:750}.related small{display:block;color:#087f9d;margin-bottom:7px}.back-top{display:inline-block;margin-top:22px;color:#087f9d;font-weight:800}.noscript{background:#fff5d9;padding:10px;text-align:center}.count{color:var(--muted);font-weight:700}@media(max-width:900px){.hero-grid,.article-layout,.footer-grid{grid-template-columns:1fr}.hero-stats{grid-template-columns:repeat(4,1fr)}.article-grid{grid-template-columns:repeat(2,1fr)}.sidebar{position:static}.related{grid-template-columns:1fr}.nav-links a:not(.nav-cta){display:none}}@media(max-width:640px){.wrap{width:min(100% - 24px,1180px)}.hero{padding:50px 0}.hero-stats{grid-template-columns:repeat(2,1fr)}.toolbar{grid-template-columns:1fr}.article-grid{grid-template-columns:1fr}.section{padding:48px 0}.guide{padding:28px;grid-template-columns:1fr}.article-body{border-radius:16px}.nav{height:64px}.brand small{display:none}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}