html,body{margin:0;padding:0;background:#f0eafa}#pwa-banner{display:none;position:fixed;bottom:0;left:0;right:0;z-index:9999;background:#fff;padding:14px 18px;box-shadow:0 -4px 20px #5a46822e;font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Noto Sans JP,sans-serif;align-items:center;gap:12px}#pwa-banner.show{display:flex}#pwa-banner img{width:48px;height:48px;border-radius:12px}#pwa-banner .txt{flex:1;font-size:14px;color:#2d2438}#pwa-banner .txt b{display:block;font-size:15px}#pwa-banner button{border:none;border-radius:20px;padding:10px 18px;font-size:14px;font-weight:700;cursor:pointer}#pwa-btn-install{background:#9b7fd4;color:#fff}#pwa-btn-close{background:transparent;color:#9c90af;font-size:18px;padding:8px}