:root{
  --red:#B5443A;
  --red-d:#8f352d;
  --gold:#D99A3C;
  --gold-d:#b97f25;
  --bg:#FAF7F2;
  --ink:#3a322c;
  --mut:#8a7f74;
  --line:#e7ded2;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  background:
    radial-gradient(120% 90% at 50% -10%, #fff 0%, var(--bg) 55%) fixed;
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  display:flex;flex-direction:column;
  min-height:100%;
}
.wrap{max-width:680px;width:100%;margin:0 auto;padding:28px 20px 40px;flex:1;display:flex;flex-direction:column}
.hero{text-align:center;padding:18px 0 26px}
.seal{
  width:64px;height:64px;border-radius:16px;margin:0 auto 14px;
  background:linear-gradient(135deg,var(--red),var(--red-d));
  color:#fff;font-size:34px;font-weight:800;line-height:64px;
  box-shadow:0 8px 22px rgba(181,68,58,.28);
}
.hero h1{font-size:30px;letter-spacing:6px;color:var(--red)}
.hero .sub{margin-top:8px;color:var(--mut);font-size:14px;letter-spacing:1px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;flex:1;align-content:center}
.card{
  text-decoration:none;color:inherit;
  background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:22px 18px;display:flex;flex-direction:column;gap:8px;
  box-shadow:0 6px 18px rgba(58,50,44,.06);
  transition:transform .15s ease, box-shadow .15s ease, border-color .15s ease;
  position:relative;overflow:hidden;
}
.card:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(181,68,58,.16);border-color:var(--red)}
.card .badge{
  align-self:flex-start;background:var(--red);color:#fff;
  font-weight:700;font-size:13px;letter-spacing:1px;
  padding:4px 12px;border-radius:999px;
}
.card .badge.gold{background:var(--gold)}
.card .badge.hsk3{background:var(--red-d)}
.card .badge.hsk4{background:#7a2e26}
.card .badge.hsk4b{background:#5c2a52}
.card .badge.hsk5{background:#2f5233}
.card .badge.hsk5b{background:#245147}
.card .badge.hsk6{background:#4a3b1f}
.card .badge.hsk6b{background:#3d2a4a}
.card h2{font-size:26px;color:var(--red);margin-top:2px}
.card .meta{color:var(--mut);font-size:13px}
.card .desc{color:var(--ink);font-size:14px;line-height:1.5;flex:1}
.card .go{color:var(--red);font-weight:600;font-size:14px}
.card:hover .go{color:var(--red-d)}
.foot{text-align:center;color:var(--mut);font-size:12px;line-height:1.7;margin-top:28px}
@media (max-width:520px){
  .grid{grid-template-columns:1fr}
  .hero h1{font-size:26px}
}