@layer legacy{.rd-item.sel:hover{background:var(--accent-soft)}.rd-item.sel{border-color:var(--accent);background:var(--accent-soft)}.rd-item.sel .rd-check{background:var(--accent);border-color:var(--accent)}.rd-item.sel .rd-check svg{opacity:1}.blog-sort .sel{position:relative}.blog-sort .sel svg{position:absolute;right:13px;top:50%;transform:translateY(-50%);width:15px;height:15px;color:var(--text-3);pointer-events:none}}@layer legacy{:root{--bg:#ffffff;--soft:#f0f2f5;--ink:#102033;--muted:#4b5a6b;--line:#dce5ef;--brand:var(--accent,#0f9d6b);--brand-d:var(--accent-strong,#0c7d55);--brand-soft:var(--accent-soft,#e8f7f0);--accent2:var(--teal,#0b6e8f);--warn:#9b5a0c;--warn-soft:#fbf1de;--danger:#be342b;--danger-soft:#fbeae8;--radius:14px;--shadow:0 12px 34px -12px rgba(16,32,44,.16),0 4px 10px rgba(16,32,44,.05)}body{margin:0;background:var(--surface);color:var(--ink);font:17px/1.7 Poppins,system-ui,-apple-system,sans-serif;-webkit-font-smoothing:antialiased}#main a{color:var(--brand-d)}.container{max-width:760px;margin:0 auto;padding:0 22px}.topbar{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:20}.topbar .container{display:flex;align-items:center;justify-content:space-between;height:60px}.logo{font-weight:600;font-size:19px;letter-spacing:-.3px;color:var(--ink);text-decoration:none;display:flex;gap:8px;align-items:center}.logo .mark{width:24px;height:24px;background:var(--brand);border-radius:7px;display:inline-block;position:relative}.logo .mark:after{content:"";position:absolute;top:7px;right:6px;bottom:7px;left:6px;border:2px solid #fff;border-radius:2px;border-top:none}.topbar nav a{color:var(--muted);text-decoration:none;font-size:14px;font-weight:600;margin-left:18px}.topbar nav a:hover{color:var(--ink)}#main .acta{display:inline-block;background:var(--brand);color:#fff!important;text-decoration:none;font-weight:600;padding:10px 18px;border-radius:10px;font-size:15px;border:none;cursor:pointer;transition:.15s}#main .acta:hover{background:var(--brand-d)}#main .acta.sm{padding:7px 14px;font-size:13.5px}.crumbs{font-size:13px;color:var(--muted);padding:18px 0 0}.crumbs a{color:var(--muted);text-decoration:none}.crumbs a:hover{color:var(--brand-d)}article{padding-bottom:40px}.eyebrow{color:var(--brand-d);font-weight:600;text-transform:uppercase;letter-spacing:1.2px;font-size:12.5px;margin-top:22px}#main h1{font-size:40px;line-height:1.12;letter-spacing:-.8px;margin:10px 0 14px}.byline{display:flex;align-items:center;gap:14px;color:var(--muted);font-size:14px;border-bottom:1px solid var(--line);padding-bottom:22px;margin-bottom:6px}.byline .av{width:34px;height:34px;border-radius:50%;background:var(--brand-soft);color:var(--brand-d);display:flex;align-items:center;justify-content:center;font-weight:600;font-size:13px}#main h2{font-size:27px;line-height:1.2;letter-spacing:-.4px;margin:46px 0 10px}#main h3{font-size:20px;margin:28px 0 6px}#main p{margin:14px 0}.quick{background:var(--brand-soft);border:1px solid var(--accent-soft-2,#bfe8d6);border-radius:var(--radius);padding:20px 22px;margin:26px 0}.quick .lab{font-weight:600;color:var(--brand-d);text-transform:uppercase;letter-spacing:.8px;font-size:12.5px;margin-bottom:4px}.quick p{margin:6px 0 0;font-size:17.5px}.toc{background:var(--soft);border:1px solid var(--line);border-radius:var(--radius);padding:16px 20px;margin:26px 0}.toc strong{display:block;font-size:13px;text-transform:uppercase;letter-spacing:.7px;color:var(--muted);margin-bottom:8px}.toc ol{margin:0;padding-left:20px}.toc li{margin:5px 0}.toc a{text-decoration:none}.toc a:hover{text-decoration:underline}.note{border-left:4px solid var(--brand);background:var(--soft);padding:14px 18px;border-radius:0 10px 10px 0;margin:22px 0}.note.warn{border-color:var(--warn);background:var(--warn-soft)}.note .h{font-weight:600;margin-bottom:2px}#main table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}caption{caption-side:top;text-align:left;font-size:13px;color:var(--muted);margin-bottom:8px}#main th,#main td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}#main thead th{background:var(--soft);font-size:12.5px;text-transform:uppercase;letter-spacing:.4px;color:var(--muted)}#main tbody tr:last-child td{border-bottom:none}.yes{color:var(--brand-d);font-weight:600}.no{color:var(--danger);font-weight:600}.part{color:var(--warn);font-weight:600}.steps{counter-reset:s;list-style:none;padding-left:0;margin:18px 0}.steps li{position:relative;padding:4px 0 16px 46px;margin:0}.steps li:before{counter-increment:s;content:counter(s);position:absolute;left:0;top:2px;width:30px;height:30px;background:var(--brand);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:15px}.steps li b{display:block}.tool{border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);margin:30px 0;overflow:hidden}.tool .head{background:linear-gradient(135deg,var(--brand),var(--accent2));color:#fff;padding:18px 22px}.tool .head h3{margin:0;color:#fff;font-size:19px}.tool .head p{margin:4px 0 0;color:#e7fff5;font-size:14px}.tool .body{padding:20px 22px}.step-lab{font-size:12.5px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);margin:0 0 8px}.opts{display:flex;flex-wrap:wrap;gap:9px}.opt{border:1px solid var(--line);background:#fff;border-radius:999px;padding:9px 15px;font-size:14px;font-weight:600;cursor:pointer;transition:.12s;color:var(--ink)}.opt:hover{border-color:var(--accent2);background:#eef7fb}.opt[aria-pressed=true]{background:var(--accent2);color:#fff;border-color:var(--accent2)}.step2{margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);display:none}.step2.show{display:block}.result{margin-top:18px;border:1px solid var(--line);border-radius:12px;padding:16px 18px;display:none}.result.show{display:block;animation:fade .25s ease}@keyframes fade{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}.badge{display:inline-block;font-weight:600;font-size:12.5px;text-transform:uppercase;letter-spacing:.5px;padding:4px 12px;border-radius:999px}.badge.g{background:var(--brand-soft);color:var(--brand-d)}.badge.y{background:var(--warn-soft);color:var(--warn)}.badge.r{background:var(--danger-soft);color:var(--danger)}.result h4,.result .rtitle{margin:10px 0 4px;font-size:18px;font-weight:600}.result p{margin:6px 0;font-size:15.5px}.result .do{margin:8px 0 0;padding-left:18px}.result .do li{margin:4px 0;font-size:15px}details{border:1px solid var(--line);border-radius:10px;margin:10px 0;padding:0 16px;background:#fff}details[open]{background:var(--soft)}summary{cursor:pointer;font-weight:600;padding:14px 0;list-style:none;display:flex;justify-content:space-between;align-items:center}summary::-webkit-details-marker{display:none}summary:after{content:"+";color:var(--brand-d);font-weight:600;font-size:20px}details[open] summary:after{content:"-"}details .a{padding:0 0 14px;color:var(--ink)}.cta{background:linear-gradient(135deg,var(--brand),var(--accent2));color:#fff;border-radius:18px;padding:30px;margin:40px 0;text-align:center}.cta h3{color:#fff;margin:0 0 6px;font-size:23px}.cta p{color:#e7fff5;margin:0 0 18px}.cta .acta{background:#fff;color:var(--brand-d)!important}.cta .acta:hover{background:#eafff6}.takeaways{background:var(--soft);border:1px solid var(--line);border-radius:var(--radius);padding:18px 22px;margin:26px 0}.takeaways ul{margin:6px 0 0;padding-left:20px}.takeaways li{margin:7px 0}.related{border-top:1px solid var(--line);padding-top:22px;margin-top:36px}.related a{display:block;text-decoration:none;color:var(--ink);font-weight:600;padding:10px 0;border-bottom:1px solid var(--line)}.related a:hover{color:var(--brand-d)}.related a small{display:block;color:var(--muted);font-weight:400;font-size:13px}footer.site{border-top:1px solid var(--line);background:var(--soft);margin-top:40px;padding:26px 0;color:var(--muted);font-size:13.5px}.editor-note{font-size:12px;color:#9aa7b4}.mock-fig{margin:28px 0}.mock-fig figcaption{font-size:13px;color:var(--muted);margin-top:10px;text-align:center}.mock{border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow);background:#fff}.mock-head{display:flex;align-items:center;gap:7px;padding:10px 14px;background:#0f1115}.mock-dot{width:10px;height:10px;border-radius:50%}.mock-dot.r{background:#ff5f57}.mock-dot.y{background:#febc2e}.mock-dot.g{background:#28c840}.mock-crumb{color:#c8d2dc;font-size:12.5px;margin-left:10px}.mock-body{padding:18px;position:relative}.mock-body.has-drop{min-height:230px}.mock-field{position:relative;max-width:330px}.mock-label{font-size:12.5px;font-weight:600;color:var(--muted);display:block;margin-bottom:6px}.mock-select{border:1px solid var(--line);border-radius:8px;padding:10px 12px;display:flex;justify-content:space-between;align-items:center;font-size:14px;background:#fff}.mock-dropdown{margin-top:6px;border:1px solid var(--line);border-radius:10px;box-shadow:0 14px 34px #10202c29;padding:6px;background:#fff;position:absolute;left:0;right:0;z-index:2}.mock-opt{display:flex;justify-content:space-between;align-items:center;padding:9px 12px;border-radius:7px;font-size:14px}.mock-opt.sel{background:var(--soft);font-weight:600}.rtag{font-size:11px;font-weight:600;color:var(--brand-d);background:var(--brand-soft);border-radius:999px;padding:2px 8px}.mock-opt:not(.sel) .rtag{animation:keyGlow 2.8s ease-in-out infinite}.mock-modal{border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);background:#fff;padding:18px;max-width:460px;margin:0 auto}.mock-modal-h{font-weight:600;font-size:16px;margin-bottom:12px}.mock-drop{border:2px dashed #c9d4de;border-radius:12px;padding:22px;text-align:center;color:var(--muted);font-size:14px}.mock-drop-ic{font-size:22px;margin-bottom:4px}.mock-note{font-size:12.5px;color:var(--muted);margin:12px 0}.mock-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:6px}.mock-btn{background:#1a2230;color:#fff;border:none;border-radius:8px;padding:8px 14px;font-size:13px;font-weight:600}.mock-btn.ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}.mock-kicker{font-size:11.5px;font-weight:600;letter-spacing:.7px;text-transform:uppercase;color:var(--brand-d);text-align:center;margin:0 0 10px}.legend{margin-top:14px;border:1px solid var(--line);border-radius:10px;background:var(--soft);padding:13px 15px;display:grid;gap:9px}.legend-item{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;line-height:1.5}.legend-num{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:50%;background:var(--brand-d);color:#fff;font-size:12px;font-weight:600;flex:none;margin-top:1px}.legend-num.no{background:var(--danger)}@keyframes keyGlow{0%,to{background:transparent}50%{background:var(--brand-soft)}}.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.2,1)}.reveal.in{opacity:1;transform:none}@media(prefers-reduced-motion:reduce){.reveal,.rtag{opacity:1;transform:none;animation:none;transition:none}}.toc a.active{color:var(--brand-d);font-weight:600}#toTop{position:fixed;right:22px;bottom:22px;width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--brand-d);font-size:20px;line-height:1;cursor:pointer;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:opacity .2s;z-index:50}#toTop.show{opacity:1;pointer-events:auto}#toTop:hover{background:var(--brand-soft)}@media print{#toTop{display:none}}}