.install-app-slot{margin-top:20px;padding-top:18px;border-top:1px solid #4a5059}
.install-app-button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;max-width:100%;padding:10px 18px;border:1px solid #4a6d81;border-radius:10px;background:#4a6d81;color:#ffffff;font:600 15px/1.4 system-ui,sans-serif;cursor:pointer;white-space:normal}
.install-app-button:focus-visible,.install-help a:focus-visible{outline:3px solid #2563eb;outline-offset:3px}
.install-app-button:disabled{cursor:default;opacity:.7}
.install-help{box-sizing:border-box;max-width:min(540px,calc(100vw - 28px));max-height:calc(100dvh - 28px);overflow:auto;padding:26px;border:1px solid #565d68;border-radius:18px;background:#20252c;color:#f4f5f7;font:16px/1.6 system-ui,sans-serif;box-shadow:0 24px 80px #0008}
.install-help::backdrop{background:#0009}
.install-help{position:relative}.install-help-close{position:absolute;top:12px;right:12px;width:36px;height:36px;padding:0;border:0;border-radius:8px;background:transparent;color:#f4f5f7;font:28px/1 system-ui,sans-serif;cursor:pointer}.install-help-close:focus-visible{outline:3px solid #2563eb;outline-offset:2px}
.install-help h2{margin:0 36px 14px 0;font-size:22px;line-height:1.3}.install-help p{margin:12px 0}.install-help ul{padding-left:22px}.install-help li{margin:12px 0}.install-help-note{font-size:14px;color:#cbd1da}
.install-offline{box-sizing:border-box;min-height:100vh;display:grid;place-items:center;margin:0;padding:24px;background:#181c22;color:#f4f5f7;font:16px/1.6 system-ui,sans-serif}.install-offline main{max-width:440px}.install-offline h1{font-size:28px;line-height:1.3}.install-offline a{text-decoration:none}
@media(max-width:400px){.install-help{padding:20px}.install-help h2{font-size:20px}}