.sifb-brief,.sifb-toc,.sifb-card,.sifb-offer,.sifb-packs,.sifb-related,.sifb-share,.sifb-author{--a:#22C8FF;--a2:#7B4DFF;--bg:#0B1430;--bd:rgba(34,200,255,.22);--tx:#F5F8FF;--mu:#A5B1D1;--btx:#050A1F;margin:32px 0;border-radius:16px;color:var(--tx);font-size:16px;line-height:1.6;box-sizing:border-box}
.sifb-brief *,.sifb-toc *,.sifb-card *,.sifb-offer *,.sifb-packs *,.sifb-related *,.sifb-share *,.sifb-author *{box-sizing:border-box}
.sifb-label{margin:0 0 14px;font-size:13px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--mu)}
.sifb-brief{padding:24px 28px;background:#0B1430;border:1px solid rgba(34,200,255,.22)}
.sifb-brief-t{margin:0 0 10px;font-weight:800;font-size:18px;color:var(--tx)}.sifb-brief-t::before{content:"⚡ "}
.sifb-brief ul{margin:0;padding-left:20px}.sifb-brief li{margin:6px 0}.sifb-brief a{color:var(--a);text-decoration:underline;text-underline-offset:3px}
.sifb-toc{padding:24px 28px;background:var(--bg);border:1px solid var(--bd)}.sifb-toc .sifb-label{border-left:4px solid var(--a);padding-left:12px;padding-bottom:12px;border-bottom:1px solid var(--bd)}
.sifb-toc ol{list-style:none;margin:0;padding:0}.sifb-toc li{margin:0}.sifb-toc a{display:flex;gap:12px;padding:9px 6px;color:var(--tx);text-decoration:none;border-radius:8px}.sifb-toc a:hover{background:rgba(127,127,127,.08);color:var(--a)}
.sifb-toc a span{color:var(--a);font-weight:800;font-variant-numeric:tabular-nums;min-width:24px}
.sifb-card{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center;padding:32px;background:linear-gradient(135deg,#0B1430,#050A1F);border:1px solid var(--bd)}
.sifb-card .sifb-card-name{margin:0 0 6px!important;font-weight:800;font-size:clamp(28px,3.6vw,44px)!important;line-height:1.1;font-family:inherit;color:var(--tx)!important}.sifb-card .sifb-card-price{margin:0 0 14px!important;font-size:24px!important;font-weight:700;color:var(--mu)}
.sifb-card-media img{width:100%;height:auto;border-radius:12px;display:block}.sifb-card-note{margin:12px 0 0;font-size:14px;color:var(--mu)}
.sifb-checks{list-style:none;margin:0 0 20px;padding:0}.sifb-checks li{position:relative;padding-left:26px;margin:7px 0}.sifb-checks li::before{content:"✓";position:absolute;left:0;color:var(--a);font-weight:900}
.sifb-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 28px;border-radius:10px;background:linear-gradient(135deg,var(--a),var(--a2));color:var(--btx)!important;font-weight:800;letter-spacing:.04em;text-decoration:none!important;transition:transform .15s,filter .2s}.sifb-btn:hover{transform:translateY(-1px);filter:brightness(1.08)}
.sifb-offer{display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;padding:24px 28px;background:linear-gradient(90deg,#22C8FF22,#0B1430 60%);border:1px solid var(--bd)}
.sifb-offer .sifb-label{margin:0 0 6px;color:#7B4DFF}.sifb-dot::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:currentColor;margin-right:8px;vertical-align:middle}
.sifb-offer .sifb-offer-t{margin:0!important;font-weight:800;font-size:clamp(20px,2.4vw,28px)!important;line-height:1.2;font-family:inherit;color:var(--tx)!important}.sifb-btn-alt{background:linear-gradient(135deg,#7B4DFF,#22C8FF)}
.sifb-packs{padding:8px 0}.sifb-packs .sifb-packs-t{margin:0 0 6px!important;text-align:center;font-weight:800;font-size:clamp(24px,3vw,34px)!important;line-height:1.15;font-family:inherit;color:var(--tx)!important}.sifb-packs-s{margin:0 auto 24px;text-align:center;color:var(--mu);max-width:640px}
.sifb-packs-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.sifb-pack{position:relative;display:flex;flex-direction:column;padding:26px 22px;background:var(--bg);border:1px solid var(--bd);border-radius:16px}.sifb-pack.is-hot{border-color:var(--a);box-shadow:0 18px 40px -18px var(--a)}
.sifb-hot{position:absolute;top:-13px;left:20px;padding:4px 12px;border-radius:999px;background:var(--a);color:var(--btx);font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.sifb-pack .sifb-pack-n{margin:0 0 8px!important;font-weight:800;font-size:20px!important;line-height:1.2;font-family:inherit;color:var(--tx)!important}.sifb-pack-p{margin:0;color:var(--mu)}.sifb-pack .sifb-pack-p b{font-size:34px!important;color:var(--tx)}.sifb-pack-y{margin:4px 0 14px;font-size:14px;color:var(--mu);padding-bottom:14px;border-bottom:1px solid var(--bd)}
.sifb-pack .sifb-btn{margin-top:auto}
.sifb-related{padding:24px 28px;background:var(--bg);border:1px solid var(--bd)}.sifb-related .sifb-label{border-left:4px solid var(--a);padding-left:12px}
.sifb-related ul{list-style:none;margin:0;padding:0}.sifb-related li{border-top:1px solid var(--bd)}.sifb-related a{display:flex;align-items:center;gap:18px;padding:14px 4px;color:var(--a);font-weight:700;text-decoration:none}
.sifb-related img,.sifb-ph{width:96px;height:72px;object-fit:cover;border-radius:10px;flex:none;background:var(--bd)}.sifb-related a::after{content:"›";margin-left:auto;font-size:24px;color:var(--mu)}
.sifb-share{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding:16px 0;border-top:1px solid var(--bd);border-bottom:1px solid var(--bd);border-radius:0}.sifb-share .sifb-label{margin:0}
.sifb-share div{display:flex;gap:8px;flex-wrap:wrap}.sifb-share a{padding:10px 16px;border-radius:10px;background:var(--bg);border:1px solid var(--bd);color:var(--tx);font-weight:700;font-size:14px;text-decoration:none}.sifb-share a:hover{border-color:var(--a);color:var(--a)}
.sifb-author{display:flex;gap:20px;padding:24px 28px;background:var(--bg);border:1px solid var(--bd);border-left:4px solid var(--a)}.sifb-author-ic{flex:none;width:56px;height:56px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--a),var(--a2));color:var(--btx);font-weight:900;font-size:22px}
.sifb-author p{margin:0 0 6px}.sifb-author-n{font-weight:800;font-size:18px}.sifb-author-r{color:var(--a);font-weight:700;font-size:14px}
@media(max-width:760px){.sifb-card{grid-template-columns:1fr;padding:22px}.sifb-card-media{order:-1}.sifb-brief,.sifb-toc,.sifb-related,.sifb-author,.sifb-offer{padding:18px}.sifb-offer .sifb-btn{width:100%}.sifb-related img,.sifb-ph{width:72px;height:56px}}