body{font-family:-apple-system,BlinkMacSystemFont,"Noto Sans TC",sans-serif;background:#fff7e8;color:#17212b;margin:0}
main{max-width:760px;margin:auto;padding:28px;text-align:center}h1{color:#17365d}
.btn{display:block;padding:17px;margin:13px 0;border-radius:15px;text-decoration:none;font-weight:800}
.android{background:#43a047;color:#fff}.ios{background:#111;color:#fff}.web{background:#e8eef4;color:#17365d}
section{background:#fff;padding:20px;border-radius:18px;margin-top:22px}img{width:70%;max-width:280px}.note{color:#666}