:root{--blue:#2563eb;--blue-dark:#1d4ed8;--blue-700:#1e40af;--blue-50:#eff6ff;--blue-100:#dbeafe;--ink:#0f1b35;--slate:#475569;--muted:#64748b;--line:#e2e8f0;--soft:#f8fafc;--green-bg:#f0fdf4;--green-bd:#bbf7d0;--radius:14px;--shadow:0 10px 30px rgba(15,27,53,.08);--shadow-sm:0 2px 10px rgba(15,27,53,.06)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--blue-dark);text-decoration:none}a:hover{text-decoration:underline}
.gnav{position:sticky;top:0;z-index:30;background:#fff;border-bottom:1px solid var(--line)}
.gnav-in{max-width:1100px;margin:0 auto;display:flex;align-items:center;gap:16px;padding:12px 20px}
.brand{display:flex;align-items:center;gap:10px}.brand:hover{text-decoration:none}
.brand .word{font-weight:800;font-size:19px;letter-spacing:-.4px;color:var(--ink)}.brand .word b{color:var(--blue);font-weight:800}
.btn-all{margin-left:auto;background:var(--blue);color:#fff;font-weight:700;font-size:14px;padding:9px 16px;border-radius:10px}
.btn-all:hover{background:var(--blue-dark);text-decoration:none}
.crumb{max-width:760px;margin:0 auto;padding:16px 20px 0;font-size:13px;color:var(--muted)}
.crumb a{color:var(--muted)}.crumb span{margin:0 7px;color:#cbd5e1}
.article{max-width:760px;margin:0 auto;padding:8px 20px 64px}
.eyebrow{text-transform:uppercase;letter-spacing:.7px;font-size:12.5px;font-weight:800;color:var(--blue);margin:14px 0 6px}
h1{font-size:33px;line-height:1.18;letter-spacing:-.6px;margin:0 0 14px}
h2{font-size:22px;letter-spacing:-.3px;margin:38px 0 12px;padding-top:6px}
.lead{font-size:18px;color:var(--slate)}.lead p{margin:0 0 12px}
.prose p{margin:0 0 12px;color:#1f2a44}.prose b{color:var(--ink)}
.cta{display:inline-flex;align-items:center;gap:8px;background:var(--blue);color:#fff;font-weight:700;font-size:16px;padding:14px 26px;border-radius:12px;margin:20px 0 6px;box-shadow:0 8px 18px rgba(37,99,235,.28)}
.cta:hover{background:var(--blue-dark);text-decoration:none;transform:translateY(-1px)}
ol.steps{list-style:none;counter-reset:s;padding:0;margin:8px 0}
ol.steps>li{counter-increment:s;position:relative;padding:12px 0 12px 50px;border-bottom:1px solid var(--line)}
ol.steps>li:last-child{border-bottom:none}
ol.steps>li::before{content:counter(s);position:absolute;left:0;top:11px;width:32px;height:32px;border-radius:50%;background:var(--blue-50);color:var(--blue-dark);font-weight:800;display:grid;place-items:center;font-size:15px}
.note{background:var(--blue-50);border:1px solid var(--blue-100);color:var(--blue-700);border-radius:12px;padding:14px 18px;margin:18px 0}
.note strong{display:block;margin-bottom:6px;color:var(--blue-dark)}
.note ul{margin:0;padding-left:18px}.note li{margin:4px 0}
.faqs{margin-top:6px}
details.faq{border:1px solid var(--line);border-radius:12px;padding:2px 16px;margin:10px 0;background:#fff;box-shadow:var(--shadow-sm)}
details.faq summary{cursor:pointer;font-weight:700;font-size:15.5px;padding:13px 0;list-style:none;color:var(--ink)}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";float:right;color:var(--blue);font-weight:800;font-size:20px;line-height:1}
details.faq[open] summary::after{content:"\2013"}
.faq-a{padding:0 0 14px;color:var(--slate)}
.related{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:8px}
.rel{display:flex;align-items:center;justify-content:space-between;gap:10px;border:1px solid var(--line);border-radius:12px;padding:14px 16px;font-weight:700;color:var(--ink);background:#fff;box-shadow:var(--shadow-sm)}
.rel:hover{border-color:var(--blue-100);background:var(--blue-50);text-decoration:none}
.rel .arr{color:var(--blue)}
.gfoot{background:var(--soft);border-top:1px solid var(--line);margin-top:40px}
.gfoot-in{max-width:1100px;margin:0 auto;padding:26px 20px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between}
.gfoot .word{font-size:17px}.foot-note{color:var(--muted);font-size:13px;max-width:460px}
@media(max-width:560px){h1{font-size:27px}.related{grid-template-columns:1fr}.btn-all{padding:8px 12px}}