:root {
  --paper: #f7f1e5;
  --paper-deep: #eadfc9;
  --ink: #2b251e;
  --ink-soft: #5c5145;
  --muted: #8a7d6c;
  --accent: #be522f;
  --card: #fffcf5;
  --line: rgba(43, 37, 30, 0.12);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 12% 0%, rgba(255,255,255,.75), transparent 42%),
    radial-gradient(circle at 100% 100%, rgba(234,223,201,.9), transparent 46%),
    var(--paper);
  color: var(--ink);
  font: 16px/1.75 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
.wrap { max-width: 880px; margin: 0 auto; padding: 48px 24px 80px; }
header.site { display: flex; align-items: center; gap: 14px; margin-bottom: 36px; }
.mark {
  width: 46px; height: 46px; border-radius: 13px;
  background: #1c1712; position: relative; flex: 0 0 auto;
  box-shadow: 0 8px 24px rgba(43,37,30,.16);
}
.mark::before {
  content: ""; position: absolute; left: 50%; top: 10px; bottom: 10px;
  width: 2px; transform: translateX(-50%); background: #f6eddc; opacity: .9;
}
.mark::after {
  content: ""; position: absolute; width: 10px; height: 10px; border-radius: 50%;
  background: #c65c39; left: 50%; top: 50%; transform: translate(-50%, -50%);
  box-shadow: 0 0 0 3px rgba(246,237,220,.25);
}
.brand-name { font-family: Georgia, "Songti SC", serif; font-size: 22px; letter-spacing: .04em; }
.brand-tag { color: var(--muted); font-size: 12px; letter-spacing: .06em; margin-top: 1px; }
nav.top { margin-left: auto; display: flex; flex-wrap: wrap; gap: 12px; }
nav.top a { color: var(--ink-soft); text-decoration: none; font-size: 13px; }
nav.top a:hover { color: var(--accent); }
h1 { font-family: Georgia, "Songti SC", serif; font-size: 38px; line-height: 1.25; margin: 8px 0 10px; font-weight: 600; }
h2 { font-family: Georgia, "Songti SC", serif; font-size: 25px; line-height: 1.35; margin: 42px 0 12px; font-weight: 600; }
h3 { font-size: 18px; margin: 28px 0 8px; }
p, li { color: var(--ink-soft); }
ul { padding-left: 22px; }
a { color: var(--accent); }
.meta { color: var(--muted); font-size: 13px; }
.card {
  background: rgba(255,252,245,.86); border: 1px solid var(--line);
  border-radius: 20px; padding: 26px 28px; margin: 24px 0;
  box-shadow: 0 18px 50px rgba(43,37,30,.06);
}
.lang-switch { display: flex; gap: 8px; margin: 18px 0 8px; }
.lang-switch a {
  display: inline-block; padding: 6px 12px; border-radius: 999px;
  background: var(--card); border: 1px solid var(--line);
  text-decoration: none; color: var(--ink-soft); font-size: 13px;
}
.lang-switch a:hover { border-color: var(--accent); color: var(--accent); }
.placeholder { background: #f6e2a8; color: #6b4e00; padding: 0 5px; border-radius: 4px; }
.notice {
  border-left: 3px solid var(--accent); background: rgba(190,82,47,.07);
  padding: 12px 16px; border-radius: 0 12px 12px 0; color: var(--ink-soft); font-size: 14px;
}
footer { margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
footer a { color: var(--muted); }
@media (max-width: 640px) {
  .wrap { padding: 28px 18px 60px; }
  h1 { font-size: 30px; }
  h2 { font-size: 22px; }
  nav.top { width: 100%; margin-left: 0; }
  header.site { flex-wrap: wrap; }
}