.install-pwa-page{max-width:1160px;margin:0 auto;padding-bottom:48px}
.install-pwa-page .lead{max-width:820px;font-size:1.08rem;line-height:1.65}
.install-detected{margin:22px 0;padding:18px 20px;border:2px solid #21c7bd;border-radius:18px;background:#eefcfb;color:#0d3140;display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.install-detected strong{font-size:1.05rem}.install-detected span{font-size:1rem}
.install-benefits{margin:26px 0;padding:22px;border-radius:22px;background:#f4f8fb;border:1px solid #dbe6ed}
.install-benefits h2{margin:0 0 16px;color:#102f40}
.install-benefit-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.install-benefit-grid>div{background:#fff;border:1px solid #dbe6ed;border-radius:16px;padding:16px;display:flex;flex-direction:column;gap:6px;min-height:105px}
.install-benefit-grid strong{color:#0b6070;font-size:1rem}.install-benefit-grid span{line-height:1.45;color:#36515f}
.install-device-grid{display:grid;gap:16px;margin-top:22px}
.install-guide-card{border:1px solid #d8e4ea;border-radius:20px;background:#fff;overflow:hidden;box-shadow:0 8px 24px rgba(15,47,64,.06)}
.install-guide-card[open]{border-color:#83d7d2;box-shadow:0 12px 30px rgba(15,47,64,.09)}
.install-guide-card.is-current-device{border:2px solid #21c7bd}
.install-guide-card summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center;padding:20px 22px;color:#123747;background:#fbfdfe}
.install-guide-card summary::-webkit-details-marker{display:none}
.install-guide-card summary strong{font-size:1.08rem}.install-guide-card summary span{font-size:.9rem;color:#5d7480;text-align:right}
.install-guide-card[open] summary{border-bottom:1px solid #e4ecef;background:#f8fcfc}
.install-guide-body{padding:22px}
.install-visual{margin:14px 0 20px;border-radius:18px;overflow:hidden;border:1px solid #d9e4e9;background:#f7fafb}
.install-visual img{display:block;width:100%;height:auto;max-height:430px;object-fit:contain}
.install-steps{list-style:none;padding:0;margin:18px 0;display:grid;gap:12px}
.install-steps li{display:flex;align-items:flex-start;gap:12px;line-height:1.5;padding:12px 14px;background:#f7fafb;border-radius:14px}
.install-steps li>span{flex:0 0 30px;width:30px;height:30px;border-radius:50%;background:#0d6a78;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}
.install-steps li>div{padding-top:3px;color:#213e4b}
.install-tip{padding:13px 15px;border-left:4px solid #21c7bd;background:#eefcfb;border-radius:10px;line-height:1.5}
.install-troubleshoot{margin:14px 0;border:1px solid #dbe5ea;border-radius:14px;padding:0;background:#fbfdfe}
.install-troubleshoot summary{padding:13px 15px;background:transparent;border:0!important;font-weight:700;color:#173f4e}
.install-troubleshoot p{padding:0 15px 15px;margin:0;line-height:1.55}
.install-official-link{display:inline-flex;margin-top:10px;font-weight:700;color:#0b6574;text-decoration:none;border-bottom:1px solid #0b6574}
.install-official-link:hover{text-decoration:none;border-bottom-width:2px}
.install-help-box{margin:28px 0;padding:22px;border-radius:20px;background:#fff8e7;border:1px solid #eadcae;color:#4b4531}
.install-help-box h2{margin-top:0;color:#433d2b}.install-help-box p,.install-help-box li{line-height:1.6}.install-help-box ul{margin-bottom:0}
.install-source-note{margin-top:22px;font-size:.88rem;color:#687d87;line-height:1.5}
.install-pwa-page .pwa-install-feedback:empty{display:none}
.install-pwa-page .pwa-install-feedback:not(:empty){margin:10px 0 0;padding:10px 12px;border-radius:10px;background:#f3f7f9}
@media(max-width:760px){
  .install-pwa-page{padding-left:4px;padding-right:4px}
  .install-benefit-grid{grid-template-columns:1fr}
  .install-guide-card summary{padding:17px 16px;align-items:flex-start;flex-direction:column;gap:4px}
  .install-guide-card summary span{text-align:left}
  .install-guide-body{padding:16px}
  .install-steps li{padding:11px 12px}
  .install-visual img{max-height:360px}
}
@media(prefers-reduced-motion:reduce){.install-guide-card{scroll-behavior:auto}}
.install-screen-caption{margin:-6px 0 18px;padding:12px 14px;border-radius:12px;background:#f3f8fa;border:1px solid #dbe6eb;color:#294854;line-height:1.55}
.install-variant{display:block;margin-top:4px;color:#5a707b;font-size:.94em}
.install-real-screen img{max-height:560px;object-fit:contain;background:#202020}