.grt-box{background:#fff;border:1px solid #eee;padding:16px;border-radius:12px;box-shadow:0 4px 18px rgba(0,0,0,.06);font-family:Arial,Helvetica,sans-serif;max-width:720px;margin:10px auto}
.grt-header{display:flex;justify-content:space-between;align-items:center}
.grt-price{font-size:28px;color:#d4af37;font-weight:700;margin:10px 0}
.grt-unit{font-size:12px;color:#666;margin-left:8px}
.grt-breakdown div{margin-bottom:6px}
.grt-actions a{margin-right:12px;text-decoration:none;color:#0073aa}
.grt-calc{background:#fff;border:1px solid #eee;padding:16px;border-radius:12px;max-width:720px;margin:10px auto}
.grt-calc input, .grt-calc select{width:48%;padding:8px;margin:8px 1%;border-radius:6px;border:1px solid #ddd;box-sizing:border-box}
@media (max-width:600px){.grt-box,.grt-calc{padding:12px;border-radius:8px}.grt-calc input,.grt-calc select{width:100%;margin:8px 0}}