:root{--text:#0f172a;--muted:#475569;--border:#e2e8f0;--panel:#f8fafc;--accent:#1d4ed8;--green:#0f5132;--warn:#b45309;color-scheme:light}
*{box-sizing:border-box}
body{margin:0;font:17px/1.65 -apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--text);background:#fff}
a{color:var(--accent)}
.top{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 20px;border-bottom:1px solid var(--border);position:sticky;top:0;background:rgba(255,255,255,.95);backdrop-filter:blur(6px);z-index:10}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--text);text-decoration:none;font-size:18px}
.brand img{border-radius:8px}
.top-link{font-weight:600;text-decoration:none;font-size:15px}
main{max-width:740px;margin:0 auto;padding:16px 20px 40px}
.crumbs{font-size:14px;color:var(--muted);margin:8px 0 18px}
.crumbs a{color:var(--muted)}
h1{font-size:clamp(28px,6vw,40px);line-height:1.15;letter-spacing:-.02em;margin:0 0 6px}
h2{font-size:24px;line-height:1.25;margin:34px 0 10px}
h3{font-size:19px;margin:24px 0 6px}
.updated{color:var(--muted);font-size:14px;margin:0 0 20px}
.lead{font-size:19px;color:#1e293b}
ul,ol{padding-left:22px}
li{margin:6px 0}
.tip{background:#ecfdf5;border-left:4px solid var(--green);padding:12px 16px;border-radius:8px;margin:18px 0}
.warn{background:#fffbeb;border-left:4px solid #f59e0b;padding:12px 16px;border-radius:8px;margin:18px 0}
.checklist{list-style:none;padding:0}
.checklist li{padding-left:32px;position:relative}
.checklist li::before{content:"✓";position:absolute;left:4px;top:0;color:var(--green);font-weight:800}
table{width:100%;border-collapse:collapse;margin:14px 0;font-size:16px}
th,td{border-bottom:1px solid var(--border);padding:8px 6px;text-align:left;vertical-align:top}
th{background:var(--panel)}
.table-wrap{overflow-x:auto}
.faq details{border:1px solid var(--border);border-radius:10px;padding:10px 14px;margin:10px 0;background:var(--panel)}
.faq summary{font-weight:700;cursor:pointer}
.faq p{margin:8px 0 2px}
.cta{margin:36px 0;padding:22px;border-radius:16px;color:#fff;background:linear-gradient(135deg,#1d4ed8,#0f5132)}
.cta h2{margin:0 0 6px;color:#fff}
.cta p{margin:0 0 14px;opacity:.95}
.cta-buttons{display:flex;flex-wrap:wrap;gap:10px}
.btn{display:inline-block;padding:11px 18px;border-radius:10px;font-weight:700;text-decoration:none;background:rgba(255,255,255,.15);color:#fff;border:1px solid rgba(255,255,255,.4)}
.btn.primary{background:#fff;color:var(--green);border-color:#fff}
.related ul{list-style:none;padding:0;display:grid;gap:10px}
.related a{display:flex;flex-direction:column;gap:2px;padding:14px 16px;border:1px solid var(--border);border-radius:12px;text-decoration:none;color:var(--text);background:var(--panel)}
.related a span{color:var(--muted);font-size:15px}
.related a:hover{border-color:var(--accent)}
.foot{max-width:740px;margin:0 auto;padding:20px;border-top:1px solid var(--border);color:var(--muted);font-size:14px}