:root {
  --ink: #1b1914;
  --muted: #5e584e;
  --line: #e4dccf;
  --paper: #f7f3eb;
  --card: #fffdf8;
  --accent: #0c5c56;
  --accent-ink: #083f3b;
  --warn: #8a4b12;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  min-height: 100vh;
  background: var(--paper);
  color: var(--ink);
  font-family: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
}
a { color: inherit; }
.wrap { width: min(920px, calc(100% - 32px)); margin: 0 auto; }
header.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand img { width: 36px; height: 36px; object-fit: contain; }
.brand strong { font-size: 16px; letter-spacing: 0.08em; }
nav.topnav { display: flex; gap: 18px; font-size: 14px; }
nav.topnav a { text-decoration: none; color: var(--muted); }
nav.topnav a[aria-current="page"] { color: var(--ink); font-weight: 700; }
.hero { padding: 28px 0 8px; }
.kicker {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 0.14em;
}
h1 { margin: 0 0 12px; font-size: 34px; line-height: 1.25; letter-spacing: -0.02em; }
.lead { margin: 0; max-width: 40em; color: var(--muted); font-size: 17px; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 28px 0; }
.card {
  display: block;
  padding: 18px 18px 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  text-decoration: none;
}
.card h2 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.panel {
  margin: 22px 0;
  padding: 20px 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
}
.panel h2 { margin: 0 0 10px; font-size: 18px; }
dl { margin: 0; }
.row { display: grid; grid-template-columns: 7.5em 1fr; gap: 8px 12px; padding: 10px 0; border-top: 1px solid var(--line); }
.row:first-of-type { border-top: 0; }
dt { color: var(--muted); }
dd { margin: 0; }
.note {
  margin-top: 14px;
  padding: 12px 14px;
  background: #f3ead8;
  color: var(--warn);
  border-radius: 10px;
  font-size: 14px;
}
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.btn {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 999px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
}
.btn.primary { background: var(--accent); color: #f7f3eb; }
.btn.ghost { background: transparent; color: var(--accent-ink); border: 1px solid var(--accent); }
footer.foot {
  margin-top: 28px;
  padding: 18px 0 32px;
  color: var(--muted);
  font-size: 13px;
  border-top: 1px solid var(--line);
}
footer.foot p { margin: 4px 0; }
@media (max-width: 720px) {
  h1 { font-size: 28px; }
  .grid { grid-template-columns: 1fr; }
  nav.topnav { gap: 12px; }
  .row { grid-template-columns: 1fr; gap: 2px; }
}