/* 张氏族谱溯源研究站样式：纸墨风格，无构建，纯静态 */

:root {
  --paper: #f7f3ea;
  --paper-deep: #efe8d8;
  --ink: #2b2b28;
  --ink-soft: #5c5a52;
  --accent: #a63c2a;      /* 朱砂 */
  --line: #d8cfb8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  line-height: 1.9;
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* 页眉 */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper-deep);
  padding: 2rem 0 0;
  text-align: center;
}
.site-title {
  font-size: 1.9rem;
  letter-spacing: 0.35em;
  margin: 0 0 0.25rem;
  text-indent: 0.35em;
}
.site-sub {
  color: var(--ink-soft);
  letter-spacing: 0.5em;
  text-indent: 0.5em;
  font-size: 0.9rem;
  margin: 0 0 1.5rem;
}
.site-nav {
  display: flex;
  justify-content: center;
  gap: 0.25rem;
  flex-wrap: wrap;
  padding-bottom: 1rem;
}
.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  padding: 0.35rem 1rem;
  border: 1px solid transparent;
  letter-spacing: 0.2em;
  text-indent: 0.2em;
  font-size: 0.95rem;
}
.site-nav a:hover { color: var(--accent); }
.site-nav a.active {
  color: var(--accent);
  border-bottom: 2px solid var(--accent);
}

/* 主体 */
main { padding: 2.5rem 0 3rem; }

.hero h1 {
  font-size: 1.6rem;
  letter-spacing: 0.25em;
  text-indent: 0.25em;
  text-align: center;
  font-weight: 600;
}
.hero p {
  text-align: center;
  color: var(--ink-soft);
  max-width: 34em;
  margin: 1rem auto 0;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin: 2.5rem 0;
}
.card {
  display: block;
  border: 1px solid var(--line);
  background: #fbf8f0;
  padding: 1.5rem 1.25rem;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s;
}
.card:hover { border-color: var(--accent); }
.card h2 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
  letter-spacing: 0.3em;
  text-indent: 0.3em;
  color: var(--accent);
}
.card p { margin: 0; color: var(--ink-soft); font-size: 0.95rem; }

.notice, .prose {
  border-top: 1px solid var(--line);
  padding-top: 1.5rem;
}
.notice h2, .prose h1, .prose h2 {
  font-size: 1.25rem;
  letter-spacing: 0.3em;
  text-indent: 0.3em;
}
.notice ul, .prose ul { padding-left: 1.5em; }
.notice li, .prose li { margin-bottom: 0.5rem; color: var(--ink-soft); }
.prose p { color: var(--ink-soft); }
.prose a, .notice a { color: var(--accent); }

.placeholder {
  border: 1px dashed var(--line);
  background: #fbf8f0;
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--ink-soft);
  margin: 1.5rem 0;
}

table.shixi {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.95rem;
}
table.shixi th, table.shixi td {
  border: 1px solid var(--line);
  padding: 0.6rem 0.75rem;
  text-align: left;
}
table.shixi th {
  background: var(--paper-deep);
  letter-spacing: 0.2em;
  font-weight: 600;
}

/* 页脚 */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.5rem 0 2.5rem;
  text-align: center;
  color: var(--ink-soft);
  font-size: 0.9rem;
  letter-spacing: 0.3em;
  text-indent: 0.3em;
}

@media (max-width: 560px) {
  .site-title { font-size: 1.5rem; }
  .site-nav a { padding: 0.35rem 0.6rem; }
}