.dl-banner{background:#fff;padding:2rem 0;text-align:center;border-bottom:1px solid #e8e8ed}
.dl-banner h1{font-size:clamp(1.3rem,3vw,1.7rem);font-weight:800;margin-bottom:.5rem}
.dl-banner p{color:#6e6e73;font-size:.9rem;max-width:580px;margin:0 auto}

.platform-tabs{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.75rem;border-bottom:1px solid #e8e8ed;padding-bottom:.75rem}
.tab-btn{background:#f5f5f7;border:1px solid #d2d2d7;border-radius:980px;padding:.45rem 1rem;font-size:.82rem;font-weight:700;color:#6e6e73;cursor:pointer;font-family:inherit}
.tab-btn.active{background:#0071e3;color:#fff;border-color:#0071e3}

.platform-panel{display:none;background:#fff;border:1px solid #d2d2d7;border-radius:16px;padding:1.35rem}
.platform-panel.active{display:grid;grid-template-columns:1fr 1.2fr;gap:1.5rem;align-items:center}
.panel-shot img{border-radius:12px;border:1px solid #e8e8ed;width:100%}
.panel-info h2{font-size:1.1rem;font-weight:800;margin-bottom:.35rem}
.panel-info .stars{margin-bottom:.65rem}
.panel-info p{font-size:.86rem;color:#6e6e73;margin-bottom:.85rem}
.panel-spec{font-size:.8rem;color:#86868b;margin-bottom:1rem}
.panel-spec dt{font-weight:700;color:#1d1d1f;display:inline}
.panel-spec dd{display:inline;margin-right:1rem}
.btn-install{display:inline-block;background:#0071e3;color:#fff!important;padding:.6rem 2rem;font-weight:700;border-radius:980px;text-decoration:none!important;font-size:.95rem}

.release-notes{background:#f5f5f7;border-radius:12px;padding:1rem;margin-top:1.25rem}
.release-notes h3{font-size:.85rem;font-weight:800;margin-bottom:.5rem;color:#1d1d1f}
.release-notes li{font-size:.82rem;color:#6e6e73;padding:.25rem 0}

.dl-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:.85rem}
.dl-card{background:#fff;border:1px solid #d2d2d7;border-radius:12px;padding:1rem;text-align:center}
.dl-card h3{font-size:.88rem;font-weight:800;margin-bottom:.35rem}
.dl-card p{font-size:.8rem;color:#6e6e73}

.dl-steps{display:flex;gap:1rem;flex-wrap:wrap}
.dl-step{flex:1;min-width:200px;background:#fff;border:1px solid #d2d2d7;border-radius:12px;padding:1rem;border-top:3px solid #0071e3}
.dl-step-num{font-size:.72rem;font-weight:800;color:#0071e3;margin-bottom:.35rem}
.dl-step h3{font-size:.9rem;font-weight:800;margin-bottom:.3rem}
.dl-step p{font-size:.82rem;color:#6e6e73}

.dl-spec-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.dl-spec{background:#fff;border:1px solid #d2d2d7;border-radius:12px;padding:1rem}
.dl-spec h3{font-size:.88rem;font-weight:800;color:#0071e3;margin-bottom:.55rem}
.dl-spec li{font-size:.82rem;color:#6e6e73;padding:.28rem 0}

.dl-cta-bar{background:#0071e3;color:#fff;text-align:center;padding:2.25rem 1rem}
.dl-cta-bar h2{font-size:1.25rem;font-weight:800;margin-bottom:.4rem}
.dl-cta-bar p{font-size:.88rem;opacity:.9;margin-bottom:1rem}
.dl-cta-bar .btn-install{background:#fff;color:#0071e3!important}

@media(max-width:768px){
  .platform-panel.active{grid-template-columns:1fr}
  .dl-cards,.dl-spec-grid{grid-template-columns:1fr}
}