/* 《太平年》治理经纬与经济逻辑 · 专题阅读区样式
   视觉体系：宣纸米 + 松烟墨 + 朱砂 + 青墨（与课程 PPT 一致，呼应《汇率之河》纸墨阅读风） */
:root {
  --paper: #f7f4ec;
  --ink: #1f1c17;
  --quiet: #6b6258;
  --rule: #d8cec0;
  --red: #a8351a;
  --cyan: #3f4a55;
  --measure: 760px;
  --size: 18px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.95;
}
/* 顶部品牌条 */
.tpn-bar {
  position: sticky; top: 0; z-index: 8;
  border-bottom: 1px solid var(--rule);
  background: color-mix(in srgb, var(--paper) 94%, transparent);
  backdrop-filter: blur(12px);
}
.tpn-bar-in {
  max-width: 1260px; min-height: 56px; margin: auto; padding: 9px 24px;
  display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
}
.tpn-brand { font: 700 15px/1.4 Georgia, "Noto Serif SC", "Songti SC", serif; letter-spacing: .05em; color: var(--ink); text-decoration: none; }
.tpn-brand small { display: block; font: 10px/1.4 Arial, sans-serif; letter-spacing: .18em; color: var(--quiet); }
.tpn-nav { display: flex; gap: 4px; flex-wrap: wrap; margin-left: auto; }
.tpn-nav a {
  padding: 5px 11px; border-radius: 6px; color: var(--quiet);
  font-size: 13px; text-decoration: none; letter-spacing: .02em;
}
.tpn-nav a:hover { color: var(--red); }
.tpn-nav a.on { color: var(--red); background: color-mix(in srgb, var(--red) 9%, transparent); font-weight: 600; }
/* 正文布局 */
.tpn-layout {
  max-width: var(--measure); margin: 0 auto; padding: 46px 24px 96px;
}
h1, h2, h3, h4 { font-family: Georgia, "Noto Serif SC", "Songti SC", "STSong", serif; text-wrap: pretty; }
h1 { margin: 0 0 12px; font-size: 40px; line-height: 1.28; letter-spacing: .02em; }
h2 {
  scroll-margin-top: 76px; margin: 58px 0 22px; padding-left: 16px;
  border-left: 4px solid var(--red); font-size: 27px; line-height: 1.4;
}
h3 { scroll-margin-top: 76px; margin: 42px 0 18px; font-size: 21px; line-height: 1.45; color: var(--red); }
h4 { margin: 28px 0 12px; font-size: 17px; line-height: 1.5; color: var(--cyan); }
p { margin: 0 0 18px; font-size: var(--size); line-height: 2.02; text-align: justify; text-justify: inter-ideograph; }
strong { color: color-mix(in srgb, var(--ink) 78%, var(--red)); font-weight: 700; }
em { color: var(--quiet); }
ul { margin: 0 0 20px; padding-left: 22px; }
li { margin: 7px 0; font-size: var(--size); line-height: 1.95; }
blockquote {
  margin: 26px 0; padding: 15px 24px; border-left: 3px solid var(--red);
  color: var(--quiet); font: 18px/1.85 Georgia, "Noto Serif SC", "Songti SC", serif;
  background: color-mix(in srgb, var(--paper) 88%, var(--red) 2%);
}
hr { border: 0; border-top: 1px solid var(--rule); margin: 52px 0; }
img { max-width: 100%; height: auto; display: block; }
/* 配图容器 */
.tpn-fig {
  margin: 26px 0 30px; padding: 16px 16px 10px; border: 1px solid var(--rule);
  background: #fffefb; border-radius: 8px;
}
.tpn-fig img { width: 100%; }
.tpn-fig figcaption { padding-top: 10px; color: var(--quiet); font-size: 13px; line-height: 1.6; text-align: center; }
/* 副标题（文件副标题行，如「——xxx」） */
.tpn-sub { color: var(--quiet); font-size: 17px; margin-bottom: 8px; }
/* 页脚 */
.tpn-foot {
  border-top: 1px solid var(--rule); padding: 30px 24px 42px;
  color: var(--quiet); text-align: center; font-size: 13px; line-height: 2;
}
.tpn-foot a { color: var(--red); text-decoration: none; }
@media (max-width: 800px) {
  .tpn-bar-in { padding: 9px 15px; }
  .tpn-layout { padding: 30px 16px 64px; }
  h1 { font-size: 32px; } h2 { font-size: 24px; } h3 { font-size: 19px; }
  p, li { font-size: 16.5px; line-height: 1.95; }
}


/* ---------- 剧照画廊（2026-10 配图大修新增） ---------- */
.tpn-hero-img { margin: 28px 0 6px; border: 1px solid var(--rule); border-radius: 10px; overflow: hidden; background: #fffefb; }
.tpn-hero-img img { width: 100%; display: block; }
.tpn-hero-img figcaption { padding: 10px 16px; font-size: 12.5px; color: var(--quiet); text-align: center; }
.tpn-people { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 24px 0; }
.tpn-pcard { margin: 0; border: 1px solid var(--rule); border-radius: 10px; overflow: hidden; background: #fffefb; }
.tpn-pcard img { width: 100%; display: block; aspect-ratio: 3 / 4.4; object-fit: cover; object-position: top; }
.tpn-pcard figcaption { padding: 9px 12px 11px; font-size: 13.5px; color: var(--ink); line-height: 1.5; }
.tpn-pcard figcaption small { display: block; color: var(--quiet); font-size: 12px; margin-top: 2px; }
.tpn-gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin: 24px 0; }
.tpn-gallery figure { margin: 0; border: 1px solid var(--rule); border-radius: 10px; overflow: hidden; background: #fffefb; }
.tpn-gallery a { display: block; }
.tpn-gallery img { width: 100%; height: 215px; object-fit: cover; display: block; }
.tpn-gallery figcaption { padding: 8px 12px 9px; font-size: 12.5px; color: var(--quiet); line-height: 1.55; }
@media (max-width: 760px) {
  .tpn-people { grid-template-columns: repeat(2, 1fr); }
  .tpn-gallery { grid-template-columns: 1fr; }
  .tpn-gallery img { height: auto; }
}