:root{--navy:#0b2344;--blue:#173e6b;--teal:#168b91;--green:#79b44b;--ink:#19324f;--muted:#5c6b7a;--line:#dce5ec;--bg:#f4f8f8;--white:#fff}
*{box-sizing:border-box}html{font-size:17px}body{margin:0;background:var(--bg);color:var(--ink);font-family:Arial,Helvetica,sans-serif;-webkit-font-smoothing:antialiased}.app-top{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:12px max(16px,env(safe-area-inset-left));background:var(--navy);box-shadow:0 2px 12px rgba(0,0,0,.16)}.app-brand img{display:block;width:min(225px,58vw);height:auto;max-height:56px;object-fit:contain}.full-site{color:#fff;text-decoration:none;font-weight:800;font-size:.9rem;white-space:nowrap}.app-shell{width:min(920px,100%);margin:0 auto;padding:28px 16px calc(42px + env(safe-area-inset-bottom))}.app-hero{padding:24px 4px 18px}.eyebrow{margin:0 0 9px;color:var(--teal);font-size:.78rem;font-weight:900;letter-spacing:.12em}.app-hero h1{margin:0;color:var(--navy);font-family:Georgia,'Times New Roman',serif;font-size:clamp(2.15rem,8vw,4rem);line-height:1.02;letter-spacing:-.035em}.intro{max-width:680px;margin:18px 0 0;font-size:1.08rem;line-height:1.6;color:#405870}.install{margin-top:20px;min-height:52px;border:0;border-radius:12px;background:var(--green);color:#fff;padding:0 20px;font-size:1rem;font-weight:900;cursor:pointer}.install-help{margin:12px 0 0;padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:12px;line-height:1.45}.quick-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:8px 0 24px}.quick-card{display:grid;grid-template-columns:48px 1fr;column-gap:12px;align-items:start;min-height:132px;padding:18px;border:1px solid var(--line);border-radius:18px;background:#fff;color:var(--ink);text-decoration:none;box-shadow:0 8px 20px rgba(11,35,68,.06)}.quick-card .icon{grid-row:1/3;display:grid;place-items:center;width:44px;height:44px;border-radius:14px;background:#eaf4f2;color:var(--teal);font-size:1.3rem;font-weight:900}.quick-card strong{font-size:1.08rem;color:var(--navy);line-height:1.2}.quick-card small{display:block;margin-top:7px;color:var(--muted);font-size:.9rem;line-height:1.45}.qr-card{display:grid;grid-template-columns:1fr 180px;gap:22px;align-items:center;margin-top:18px;padding:22px;border:1px solid var(--line);border-radius:20px;background:#fff}.qr-card h2{margin:0 0 8px;color:var(--navy);font-family:Georgia,'Times New Roman',serif;font-size:1.75rem}.qr-card p{line-height:1.5}.qr-url{font-weight:800;color:var(--blue);overflow-wrap:anywhere}.qr-link{display:block;background:#fff;padding:8px;border-radius:14px;border:1px solid var(--line)}.qr-link img{display:block;width:100%;height:auto}.app-note{margin:22px 4px 0;color:var(--muted);line-height:1.55}.app-note a{color:var(--blue);font-weight:800}@media(max-width:640px){html{font-size:16px}.app-top{padding-top:max(10px,env(safe-area-inset-top))}.quick-grid{grid-template-columns:1fr}.quick-card{min-height:112px}.qr-card{grid-template-columns:1fr;text-align:left}.qr-link{width:180px}.app-shell{padding-left:13px;padding-right:13px}}