body{background:#f4f4f5;color:#1b2630;margin:0;font-family:system-ui,-apple-system,Arial,sans-serif}header.top{background:#0b3045;color:white;padding:25px 20px 32px;min-height:120px}header.top h1{font-size:26px;font-weight:500;margin:25px 0 0}.brand{display:flex;align-items:center;gap:12px}.brand img{width:48px;height:48px;object-fit:contain}.brand small{display:block;color:#c3d2dd}main.appmain{max-width:800px;margin:auto;padding:20px 16px 120px}.card{background:white;border-radius:13px;padding:18px;margin:0 0 18px;box-shadow:0 4px 5px #00000018;border-left:3px solid #e3b84c}.card h3{font-size:20px;margin:7px 0}.bottomnav{position:fixed;bottom:0;left:0;right:0;background:#fff;display:flex;justify-content:space-around;box-shadow:0 -2px 12px #0001;padding:10px 3px max(10px,env(safe-area-inset-bottom));z-index:20}.bottomnav a{color:#a4adbc;text-align:center;text-decoration:none;display:flex;flex-direction:column;gap:3px;font-size:20px;flex:1}.bottomnav a.active{color:#0b3045;font-weight:700}.bottomnav small{font-size:11px}.appmain input,.appmain select,.appmain textarea{max-width:100%;box-sizing:border-box}.appmain .hero{background:#fff;color:#183044}.appmain .hero h1{color:#183044}.appmain .card a{color:#0a627c}.appmain button.primary{background:#0b3045;color:white}.appmain .trap{display:none}
.device-choices{display:flex;gap:12px;margin:14px 0}.device-choice{flex:1;border:1px solid #cbd5e1;background:#fff;color:#123047;border-radius:12px;padding:14px 8px;font-weight:700;cursor:pointer}.device-choice.selected{border-color:#0a4667;background:#e6f4fa;box-shadow:inset 0 0 0 1px #0a4667}.device-guide{background:#f6f8fb;padding:14px 17px;border-radius:12px;margin:12px 0 16px}.device-guide[hidden]{display:none}.device-guide h3{margin-top:0}.device-guide ol{padding-left:22px;line-height:1.65}.device-guide li{margin:8px 0}.guide-note{font-size:.9rem;color:#536171}.install-guide #installApp{margin-top:8px}