:root{color-scheme:light}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;display:grid;place-items:center;background:linear-gradient(140deg,#071c35,#0f3a63);
  font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:#eaf6ff}
main{width:min(680px,92vw);padding:40px 0}
h1{margin:0 0 6px;font-size:34px;letter-spacing:1px}
.lead{margin:0 0 28px;color:#9ec8e8;font-size:15px}
ul{list-style:none;margin:0;padding:0;display:grid;gap:12px}
a{display:grid;gap:4px;padding:18px 20px;border:1px solid rgba(120,220,239,.28);border-radius:12px;
  background:rgba(255,255,255,.05);color:inherit;text-decoration:none}
a:hover,a:focus-visible{background:rgba(255,255,255,.1);border-color:rgba(120,220,239,.6)}
strong{font-size:17px}
span{color:#9ec8e8;font-size:13px}
@media (prefers-reduced-motion:no-preference){a{transition:background .15s ease,border-color .15s ease}}