.mobile-install,.install-help{display:none}
@media(max-width:520px){
 .mobile-install{display:block;position:relative;margin:10px auto 38px;padding-top:24px;isolation:isolate}
 .install-card{position:relative;overflow:hidden;border:1px solid var(--line);border-radius:12px;background:radial-gradient(ellipse at 5% 18%,color-mix(in srgb,var(--gold) 22%,var(--panel)),var(--panel) 65%);padding:25px 20px 22px;box-shadow:0 16px 35px color-mix(in srgb,var(--dark) 45%,transparent)}
 .install-card::before{content:"";position:absolute;left:-45px;top:18px;width:210px;height:210px;border:1px solid color-mix(in srgb,var(--gold) 28%,transparent);border-radius:50%;pointer-events:none}
 .install-intro{display:grid;grid-template-columns:120px minmax(0,1fr);gap:12px;align-items:center;position:relative}
 .install-mascot{display:block;width:140px;max-width:none;height:210px;margin-left:-18px;object-fit:contain;filter:drop-shadow(0 8px 12px color-mix(in srgb,var(--dark) 30%,transparent))}
 .install-intro .eyebrow{font-size:12px;margin-bottom:8px}.install-intro h2{font-size:24px;line-height:1.35;overflow-wrap:anywhere}
 .install-intro p:last-child{font-size:16px;line-height:1.7;color:var(--muted);margin:10px 0 0}
 .install-card>button{width:100%;margin-top:15px;gap:10px;font-size:16px}.install-caption{font-size:12px;color:var(--muted);text-align:center;margin:10px 0 0}
 .install-help{color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:12px;width:calc(100% - 30px);max-width:440px;max-height:85dvh;overflow:auto;padding:24px}
 .install-help[open]{display:block}.install-help::backdrop{background:color-mix(in srgb,var(--dark) 82%,transparent)}
 .install-help h2{font-size:24px;margin-right:20px}.install-help h3{color:var(--gold);font-size:18px;margin-top:22px}.install-help p{font-size:16px;color:var(--muted)}
 .help-close{position:absolute;top:10px;right:10px;width:44px;height:44px;display:grid;place-items:center;border:0;background:transparent;color:var(--gold);border-radius:5px}
 .install-help .button{width:100%;margin-top:16px}.install-help .local-note{padding:12px;background:var(--panel);border:1px solid var(--line);border-radius:5px;font-size:14px}
}
@media(max-width:360px){.install-intro{grid-template-columns:95px minmax(0,1fr)}.install-mascot{width:120px;height:190px}.install-intro h2{font-size:22px}.install-card{padding-inline:15px}}
@media(display-mode:standalone){.mobile-install{display:none!important}}