/* BDN Voice blog */
.bnav{display:flex;gap:18px;align-items:center}
.bnav a{color:var(--ink2);text-decoration:none;font-weight:600}
.bnav .btn{color:#fff}
@media (max-width:560px){.bnav a:not(.btn){display:none}}
.post{padding:28px 0 60px;background:var(--bg)}
.narrow{max-width:760px}
.crumbs a{color:var(--muted);text-decoration:none;font-size:.95rem}
.post h1{font-size:clamp(1.7rem,4.6vw,2.6rem);line-height:1.25;margin:14px 0 8px;font-weight:900}
.meta{color:var(--muted);font-size:.92rem;margin:0}
.cover{margin:22px 0 26px}
.cover img,.card img{width:100%;height:auto;border-radius:18px;display:block;aspect-ratio:5/3;object-fit:cover}
.body{font-size:1.12rem;line-height:1.85;color:#1f2937}
.body h2{font-size:1.45rem;margin:34px 0 10px;line-height:1.35}
.body p{margin:0 0 16px}
.body ul{padding-inline-start:22px;margin:0 0 18px}
.body li{margin-bottom:10px}
.body a{color:#6d28d9;font-weight:600}
.note{background:#f5f3ff;border-inline-start:4px solid #7c3aed;padding:12px 16px;border-radius:10px;font-size:1rem;color:#4c1d95}
.codes{width:100%;border-collapse:collapse;margin:8px 0 18px;font-size:1.02rem}
.codes th,.codes td{border:1px solid #e5e7eb;padding:10px 12px;text-align:start}
.codes th{background:#f8fafc}
.codes td[dir=ltr]{font-family:ui-monospace,Menlo,Consolas,monospace;font-weight:700;text-align:left}
.calc{background:linear-gradient(135deg,#faf5ff,#fdf2f8);border:2px solid #e9d5ff;border-radius:18px;padding:20px;margin:10px 0 22px;display:grid;gap:12px}
.calc label{display:flex;justify-content:space-between;align-items:center;gap:12px;font-weight:600;font-size:1rem}
.calc input{width:110px;padding:9px 10px;border:1px solid #d8b4fe;border-radius:10px;font:inherit;text-align:center;background:#fff}
.calc-out{background:#fff;border-radius:12px;padding:14px;font-size:1.08rem;line-height:1.7;border:1px solid #f3e8ff}
.calc-out b{color:#be185d}
@media (max-width:520px){.calc label{flex-direction:column;align-items:stretch}.calc input{width:100%}}
.share{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:30px 0 8px;padding-top:18px;border-top:1px solid var(--line)}
.share span{font-weight:700;color:var(--muted)}
.share button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 14px;font:inherit;font-weight:600;cursor:pointer}
.share button:hover{background:#f5f3ff}
.cta-box{margin:26px 0;padding:26px;border-radius:22px;background:linear-gradient(135deg,#4c1d95,#7c3aed 55%,#db2777);color:#fff}
.cta-box h2{margin:0 0 8px;font-size:1.5rem;color:#fff}
.cta-box p{margin:0 0 16px;opacity:.95;line-height:1.75}
.cta-box .btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.6)}
.cta-box .btn-primary{background:#fff;color:#4c1d95}
.cta-box .deal{margin:14px 0 0;background:rgba(0,0,0,.18);display:inline-block;padding:6px 12px;border-radius:10px;font-size:.95rem}
.more h2{font-size:1.3rem;margin:36px 0 14px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:16px}
.card{display:block;text-decoration:none;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(76,29,149,.12)}
.card img{border-radius:0}
.card b{display:block;padding:12px 14px 14px;line-height:1.45}
.cards.big{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}
.cards.big .cb{padding:14px 16px 18px}
.cards.big .cb b{padding:0 0 6px;font-size:1.18rem}
.cards.big .cb p{margin:0 0 10px;color:var(--muted);font-size:.98rem;line-height:1.6}
.blog-head{text-align:center;max-width:720px;margin:10px auto 30px}
.blog-head h1{margin:8px 0}
.blog-head p{color:var(--muted);font-size:1.1rem}