:root{
  --bg:#f4f7f1;
  --card:#ffffff;
  --ink:#142014;
  --muted:#687368;
  --green:#2f7d32;
  --green-dark:#17301b;
  --line:#dce5d8;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:Arial,Helvetica,sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.65;
}
header{
  background:linear-gradient(135deg,var(--green-dark),var(--green));
  color:white;
  padding:24px 18px;
}
.header-inner{
  max-width:960px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:14px;
}
.logo{
  width:52px;
  height:52px;
  border-radius:16px;
  background:rgba(255,255,255,.14);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:30px;
}
h1{font-size:28px;margin:0}
.subtitle{margin:4px 0 0;color:rgba(255,255,255,.78)}
nav{
  max-width:960px;
  margin:16px auto 0;
  padding:0 18px;
  display:flex;
  flex-wrap:wrap;
  gap:9px;
}
nav a{
  color:white;
  text-decoration:none;
  border:1px solid rgba(255,255,255,.35);
  padding:8px 12px;
  border-radius:10px;
  font-weight:700;
}
main{
  max-width:960px;
  margin:22px auto 50px;
  padding:0 18px;
}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:20px;
  padding:28px;
  box-shadow:0 10px 30px rgba(29,70,33,.06);
}
h2{margin-top:28px;color:var(--green-dark)}
h2:first-child{margin-top:0}
a{color:var(--green)}
.notice{
  background:#edf5ec;
  border-left:5px solid var(--green);
  padding:14px 16px;
  border-radius:10px;
}
footer{
  max-width:960px;
  margin:0 auto 30px;
  padding:0 18px;
  color:var(--muted);
  font-size:13px;
}
ul{padding-left:22px}
@media(max-width:620px){
  .card{padding:20px}
  h1{font-size:23px}
}