:root{
  --ink:#141414; --muted:#6f6f6f; --line:#e3e3e3; --bg:#ffffff; --soft:#f5f5f5;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; background:var(--bg); color:var(--ink);
  font-family:-apple-system,"PingFang SC","Helvetica Neue",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
  display:flex; flex-direction:column; align-items:center;
  min-height:100vh; min-height:100dvh;
  padding:0 24px;
}
.hero{
  flex:1; display:flex; flex-direction:column; align-items:center; justify-content:center;
  text-align:center; padding:56px 0 40px;
}
.logo{width:min(210px,58vw); height:auto; display:block; margin-bottom:18px}
.tag{margin:0 0 44px; color:var(--muted); font-size:14px; letter-spacing:.3px}
.tile{
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:12px;
  width:156px; height:156px; border:1px solid var(--line); border-radius:34px;
  background:#fff; color:var(--ink); text-decoration:none;
  transition:transform .18s ease, border-color .18s ease, box-shadow .18s ease;
  -webkit-tap-highlight-color:transparent;
}
.tile:hover{transform:translateY(-3px); border-color:var(--ink); box-shadow:0 10px 28px rgba(0,0,0,.08)}
.tile:active{transform:scale(.98)}
.icon{width:64px; height:64px; display:block}
.tile-label{font-size:14px; font-weight:600; letter-spacing:.5px}
.sub{margin:20px 0 0; color:var(--muted); font-size:12px; letter-spacing:.2px}
footer{
  padding:0 0 28px; color:var(--muted); font-size:11.5px; letter-spacing:.2px;
  text-align:center;
}
@media(max-width:480px){
  .hero{padding-top:44px}
  .logo{width:min(180px,62vw)}
  .tag{font-size:13px; margin-bottom:38px}
  .tile{width:142px; height:142px; border-radius:30px}
  .icon{width:58px; height:58px}
}