.pwa-install-button{position:fixed;right:18px;bottom:18px;z-index:9997;display:inline-flex;align-items:center;gap:9px;padding:9px 14px;border:1px solid rgba(255,255,255,.25);border-radius:999px;background:#061226;color:#fff;box-shadow:0 16px 42px rgba(6,18,38,.28);font:800 .88rem/1 Arial,'Noto Sans KR',sans-serif;cursor:pointer}.pwa-install-button[hidden]{display:none}.pwa-install-button img{width:28px;height:28px;border-radius:8px}.pwa-install-button:hover{transform:translateY(-1px)}
.topbar .brand-logo-image{display:block;width:auto;height:40px;max-width:min(300px,45vw);object-fit:contain}.site-header .landing-brand-logo{display:block;width:auto;height:48px;max-width:min(390px,55vw);object-fit:contain}.brand-full-logo{display:block;width:auto;height:40px;max-width:min(300px,45vw);object-fit:contain}
@media(max-width:680px){.topbar .brand-logo-image{height:34px;max-width:52vw}.site-header .landing-brand-logo{height:38px;max-width:58vw}.pwa-install-button{right:12px;bottom:12px;padding:8px 12px}}

/* v5.5.2 */
.pwa-install-help{position:fixed;right:14px;bottom:14px;z-index:9997;max-width:260px;padding:13px 15px;border:1px solid #dce5f0;border-radius:14px;background:#fff;color:#17243a;box-shadow:0 18px 44px rgba(6,18,38,.2);font:700 .82rem/1.55 Arial,'Noto Sans KR',sans-serif}
.pwa-install-help button{float:right;border:0;background:transparent;color:#64748b;cursor:pointer}


/* v5.5.2 install guide */
.pwa-guide-modal{position:fixed;inset:0;z-index:10020;display:grid;place-items:center;padding:20px;background:rgba(2,8,23,.68);backdrop-filter:blur(8px)}
.pwa-guide-card{position:relative;width:min(420px,100%);padding:28px;border:1px solid rgba(148,163,184,.28);border-radius:24px;background:#fff;color:#0f172a;text-align:center;box-shadow:0 28px 80px rgba(2,8,23,.34)}
.pwa-guide-close{position:absolute;right:14px;top:10px;width:36px;height:36px;border:0;background:transparent;font-size:28px;color:#64748b;cursor:pointer}
.pwa-guide-icon{width:86px;height:86px;border-radius:22px;box-shadow:0 12px 30px rgba(15,23,42,.18)}
.pwa-guide-card h2{margin:16px 0 8px;font-size:22px}
.pwa-guide-card p{margin:0;color:#475569;line-height:1.7}
.pwa-guide-link{display:inline-flex;margin-top:18px;padding:11px 16px;border-radius:12px;background:#2563eb;color:#fff!important;text-decoration:none!important;font-weight:800}
@media(max-width:640px){.pwa-guide-modal{align-items:end;padding:0}.pwa-guide-card{width:100%;border-radius:24px 24px 0 0;padding:28px 22px 34px}}