@charset "utf-8";
/* 简帛板块 · 王家嘴《孔子曰》
   纯静态、自包含:不引任何 CDN、外部字体或外部脚本,中文一律用系统字体栈。 */

:root {
  --paper:    #f6f3ec;
  --surface:  #fffdf8;
  --sunk:     #efe9dd;
  --ink:      #221f1a;
  --ink-2:    #5d564a;
  --ink-3:    #8a8172;
  --rule:     #dfd7c7;
  --rule-2:   #ece5d6;
  --accent:   #8a3f2b;   /* 朱 */
  --accent-2: #2f6360;   /* 青 */
  --accent-soft: rgba(138, 63, 43, .09);
  --shadow:   0 1px 2px rgba(60, 45, 25, .06), 0 8px 24px rgba(60, 45, 25, .07);
  --plate-bg: #ece5d7;

  --serif: "Songti SC", "Source Han Serif SC", "Noto Serif CJK SC", "Source Han Serif CN",
           "STSong", "SimSun", "PMingLiU", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
          "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", system-ui, sans-serif;
  --wrap: 1180px;
  --plate-h: 38rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:    #161512;
    --surface:  #1e1d19;
    --sunk:     #24221d;
    --ink:      #ece7dc;
    --ink-2:    #b0a897;
    --ink-3:    #857d6e;
    --rule:     #37332b;
    --rule-2:   #2b2822;
    --accent:   #e09372;
    --accent-2: #79b6b1;
    --accent-soft: rgba(224, 147, 114, .12);
    --shadow:   0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .35);
    --plate-bg: #201e19;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration-color: var(--accent); }

.wrap { width: min(100% - 2.5rem, var(--wrap)); margin-inline: auto; }

.skip {
  position: absolute; left: -9999px;
  background: var(--surface); padding: .5rem 1rem; z-index: 100;
}
.skip:focus { left: 1rem; top: 1rem; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ---------------------------------------------------------- 页眉页脚 */

header.site {
  border-bottom: 1px solid var(--rule);
  background: var(--surface);
  position: sticky; top: 0; z-index: 20;
}
.bar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; min-height: 3.5rem; flex-wrap: wrap;
}
.brand { display: flex; align-items: baseline; gap: .55rem; text-decoration: none; color: inherit; }
.brand-main { font-weight: 600; letter-spacing: .04em; }
.brand-sub {
  font-family: var(--serif); color: var(--accent);
  border-left: 1px solid var(--rule); padding-left: .55rem; letter-spacing: .12em;
}
header nav { display: flex; gap: .35rem; }
header nav a {
  text-decoration: none; color: var(--ink-2);
  padding: .3rem .7rem; border-radius: 999px; font-size: .94rem;
}
header nav a:hover { background: var(--sunk); color: var(--ink); }
header nav a.on { background: var(--accent-soft); color: var(--accent); font-weight: 600; }

footer.site {
  margin-top: 4rem; padding: 2rem 0 3rem;
  border-top: 1px solid var(--rule); background: var(--surface);
  font-size: .86rem; color: var(--ink-2);
}
footer.site p { margin: 0 0 .75rem; max-width: 62ch; }
footer .cite { font-family: var(--serif); line-height: 1.9; }
footer .cite strong { font-family: var(--sans); font-size: .8rem; letter-spacing: .08em; color: var(--ink-3); }
footer .rights { color: var(--ink-3); }

/* ------------------------------------------------------------ 通用块 */

.hero { padding: 3.5rem 0 2.5rem; }
.kicker {
  margin: 0 0 .6rem; font-size: .78rem; letter-spacing: .22em;
  color: var(--ink-3); text-transform: none;
}
h1 {
  font-family: var(--serif); font-weight: 600;
  font-size: clamp(1.7rem, 1.1rem + 2.4vw, 2.6rem);
  line-height: 1.35; margin: 0 0 1rem; letter-spacing: .01em;
}
.lede {
  font-size: 1.05rem; color: var(--ink-2); max-width: 58ch;
  margin: 0 0 1.5rem; line-height: 1.95;
}
.actions { display: flex; gap: .75rem; flex-wrap: wrap; margin: 0; }
.btn {
  display: inline-block; text-decoration: none;
  background: var(--accent); color: var(--surface);
  padding: .55rem 1.15rem; border-radius: .4rem; font-size: .95rem;
  box-shadow: var(--shadow);
}
.btn:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; color: var(--accent); border: 1px solid var(--rule); box-shadow: none; }
.btn.ghost:hover { background: var(--accent-soft); filter: none; }

.cols { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr)); }

.card {
  background: var(--surface); border: 1px solid var(--rule);
  border-radius: .6rem; padding: 1.5rem 1.6rem;
}
.card h2, .page-head h2, .appendix h2 {
  font-family: var(--serif); font-size: 1.15rem; font-weight: 600;
  margin: 0 0 .9rem; letter-spacing: .03em;
}
.card h2::after {
  content: ""; display: block; width: 2.2rem; height: 2px;
  background: var(--accent); margin-top: .5rem; opacity: .8;
}
.card p { margin: 0 0 .85rem; }
.card p:last-child { margin-bottom: 0; }
.note {
  font-size: .88rem; color: var(--ink-2);
  border-left: 2px solid var(--rule); padding-left: .85rem;
}
blockquote {
  margin: 1rem 0; padding: .9rem 1.1rem;
  background: var(--sunk); border-left: 3px solid var(--accent);
  border-radius: 0 .3rem .3rem 0;
  font-family: var(--serif); font-size: 1.02rem; line-height: 1.95;
}

.facts { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: .45rem 1rem; }
.facts dt { color: var(--ink-3); font-size: .88rem; white-space: nowrap; }
.facts dd { margin: 0; font-size: .94rem; }

.legend { display: grid; gap: .4rem .9rem; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); margin-bottom: 1rem; }
.leg { display: flex; gap: .7rem; align-items: baseline; font-size: .88rem; color: var(--ink-2); }
.leg .sym {
  font-family: var(--serif); color: var(--ink); min-width: 3.2rem;
  text-align: center; background: var(--sunk); border-radius: .25rem;
  padding: .05rem .3rem; flex: none;
}

.page-head { padding: 2.75rem 0 1.75rem; }

/* -------------------------------------------------------------- 图册 */

.plate {
  display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: center;
  gap: .35rem; padding: 1.75rem 1rem 1.25rem;
  background: var(--plate-bg); border: 1px solid var(--rule);
  border-radius: .6rem;
}
.plate .cell {
  flex: 0 0 auto; width: 2.9rem;
  display: flex; flex-direction: column; align-items: center; gap: .5rem;
  text-decoration: none; color: var(--ink-3);
  padding: .35rem .1rem .3rem; border-radius: .35rem;
}
.plate .slot { height: var(--plate-h); display: flex; align-items: flex-start; }
.plate img {
  display: block; width: auto; max-width: 100%;
  background: var(--surface);
  box-shadow: 0 1px 3px rgba(0, 0, 0, .3);
  transform-origin: top center;
  transition: transform .12s ease;
}
.plate .cap { font-size: .68rem; letter-spacing: .04em; font-variant-numeric: tabular-nums; }
.plate .cell:hover { background: rgba(255, 255, 255, .28); color: var(--ink); }
.plate .cell:hover img { transform: scale(1.35); }
@media (prefers-color-scheme: dark) {
  .plate .cell:hover { background: rgba(255, 255, 255, .06); }
}

/* 灯箱 */
body.lb-open { overflow: hidden; }
.lb {
  position: fixed; inset: 0; z-index: 50;
  display: flex; flex-direction: column;
  background: rgba(17, 15, 12, .975);
}
.lb[hidden] { display: none; }
.lb-bar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap;
  padding: .6rem 1rem; border-bottom: 1px solid rgba(255, 255, 255, .14);
  color: #efe9dd; font-size: .85rem;
}
.lb-title { font-variant-numeric: tabular-nums; letter-spacing: .03em; }
.lb-tools { display: flex; gap: .35rem; align-items: center; flex-wrap: wrap; }
.lb-tools button {
  font: inherit; font-family: var(--sans);
  background: rgba(255, 255, 255, .1); color: #efe9dd;
  border: 1px solid rgba(255, 255, 255, .16); border-radius: .3rem;
  padding: .25rem .6rem; cursor: pointer;
}
.lb-tools button:hover { background: rgba(255, 255, 255, .2); }
.lb-zoom { min-width: 2.6rem; text-align: center; color: #cfc7b8; font-variant-numeric: tabular-nums; }
.lb-stage { flex: 1; overflow: auto; display: flex; padding: 1.25rem; }
.lb-box { position: relative; margin: auto; flex: none; }
.lb-box img {
  position: absolute; left: 50%; top: 50%;
  background: #f6f3ec; box-shadow: 0 4px 30px rgba(0, 0, 0, .5);
}

/* -------------------------------------------------------------- 对读 */

.toc {
  display: flex; flex-wrap: wrap; gap: .3rem;
  border-top: 1px solid var(--rule); padding-top: 1rem;
}
.toc a {
  text-decoration: none; font-size: .85rem; color: var(--ink-2);
  padding: .2rem .6rem; border: 1px solid var(--rule); border-radius: 999px;
}
.toc a:hover { border-color: var(--accent); color: var(--accent); }

.fanli { margin-bottom: 2rem; }
.fanli summary { list-style: none; cursor: pointer; }
.fanli summary::-webkit-details-marker { display: none; }
.fanli summary h2 { display: inline-block; margin-bottom: .9rem; }
.fanli summary h2::after { content: ""; display: block; width: 2.2rem; height: 2px; background: var(--accent); margin-top: .5rem; opacity: .8; }

.entry {
  background: var(--surface); border: 1px solid var(--rule);
  border-radius: .6rem; padding: 1.25rem 1.4rem 1.1rem; margin-bottom: 1.25rem;
  scroll-margin-top: 4.5rem;
}
.entry-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap;
  border-bottom: 1px solid var(--rule-2); padding-bottom: .7rem; margin-bottom: 1.1rem;
}
.entry-head h2 { font-family: var(--serif); font-size: 1.1rem; margin: 0; letter-spacing: .06em; }
.entry-head h2 a { text-decoration: none; color: var(--ink); }
.entry-head h2 a:hover { color: var(--accent); }
.chips { display: flex; gap: .35rem; flex-wrap: wrap; }
.chip {
  font-size: .76rem; font-variant-numeric: tabular-nums;
  background: var(--sunk); color: var(--ink-2);
  border-radius: .25rem; padding: .1rem .5rem; letter-spacing: .03em;
}

.triad { display: grid; gap: 1.1rem; grid-template-columns: 1fr; }
@media (min-width: 62rem) { .triad { grid-template-columns: repeat(3, 1fr); gap: 1.6rem; } }

.col { border-top: 2px solid var(--rule); padding-top: .7rem; min-width: 0; }
.col h3 {
  font-family: var(--sans); font-size: .76rem; font-weight: 600;
  letter-spacing: .14em; color: var(--ink-3); margin: 0 0 .6rem;
}
.col p {
  font-family: var(--serif); font-size: 1.02rem; line-height: 2.05;
  margin: 0; overflow-wrap: break-word;
}
.col.wjz { border-top-color: var(--accent); }
.col.wjz h3 { color: var(--accent); }
.col.ada { border-top-color: var(--accent-2); }
.col.ada h3 { color: var(--accent-2); }
.col .empty { font-family: var(--sans); font-size: .88rem; color: var(--ink-3); font-style: normal; }

/* 抽取时丢失的字:用画出来的虚框占位,不依赖任何冷僻字符的字体支持 */
.lost {
  display: inline-block; width: .62em; height: .86em;
  border: 1px dashed var(--accent); border-radius: 1px;
  opacity: .55; vertical-align: -.08em; margin: 0 .04em; cursor: help;
}

details.anyu { margin-top: 1.1rem; border-top: 1px dashed var(--rule); }
details.anyu > summary {
  cursor: pointer; list-style: none; padding: .7rem 0 0;
  font-size: .85rem; color: var(--ink-2); display: flex; align-items: center; gap: .45rem;
}
details.anyu > summary::-webkit-details-marker { display: none; }
details.anyu > summary::before {
  content: "▸"; color: var(--accent); font-size: .8rem; transition: transform .15s ease;
}
details.anyu[open] > summary::before { transform: rotate(90deg); }
details.anyu > summary:hover { color: var(--accent); }

.anyu-body { padding: .5rem 0 .4rem; max-width: 74ch; }
.anyu-body p {
  font-family: var(--serif); font-size: .96rem; line-height: 2;
  margin: 0 0 .8rem; text-indent: 2em; color: var(--ink-2);
}
.anyu-body p.q {
  text-indent: 0; padding: .7rem 1rem; margin-left: 1.5rem;
  background: var(--sunk); border-radius: .3rem;
  font-size: .93rem; color: var(--ink);
}

.appendix { margin-top: 2.5rem; border-top: 1px solid var(--rule); padding-top: 1.75rem; scroll-margin-top: 4.5rem; }
.appendix .anyu-body { max-width: 74ch; margin-top: 1rem; }

@media (max-width: 40rem) {
  :root { --plate-h: 19rem; }
  .plate { padding: 1.1rem .6rem .9rem; gap: .2rem; }
  .plate .cell { width: 3.1rem; }
  .card { padding: 1.2rem 1.15rem; }
  .anyu-body p.q { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}

/* ── 密封评测页 ─────────────────────────────────────────── */
.card h3 {
  font-size: 1rem; margin: 1.5rem 0 .5rem; color: var(--ink);
  font-family: var(--sans); font-weight: 600;
}
.card h3:first-child { margin-top: 0; }
.card ol, .card ul { margin: .6rem 0 .9rem; padding-left: 1.4rem; }
.card li { margin: 0 0 .5rem; line-height: 1.8; }
.card li:last-child { margin-bottom: 0; }
.card code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .85em; background: var(--sunk); border-radius: .25rem;
  padding: .08rem .34rem; word-break: break-all;
}
.metrics {
  width: 100%; border-collapse: collapse; margin: .9rem 0 1rem;
  font-size: .92rem; display: block; overflow-x: auto;
}
.metrics th, .metrics td {
  border-bottom: 1px solid var(--rule-2); padding: .5rem .7rem;
  text-align: left; vertical-align: top;
}
.metrics thead th {
  border-bottom: 1.5px solid var(--rule); color: var(--ink-3);
  font-weight: 600; font-size: .85rem; white-space: nowrap;
}
.metrics tbody tr:last-child td { border-bottom: none; }
.metrics strong { color: var(--accent); }

/* 首页「今晚成果」入口条 */
.spotlight {
  margin: 0 0 1.6rem; padding: 1.25rem 1.4rem;
  background: var(--surface); border: 1px solid var(--rule);
  border-left: 4px solid var(--accent); border-radius: .5rem;
  box-shadow: var(--shadow);
}
.spotlight .kicker { margin: 0 0 .35rem; }
.spotlight h2 { font-size: 1.12rem; margin: 0 0 .5rem; }
.spotlight p { margin: 0 0 .8rem; font-size: .95rem; color: var(--ink-2); }
.spotlight p:last-child { margin-bottom: 0; }
.spotlight .nums {
  display: flex; flex-wrap: wrap; gap: 1.4rem; margin: .8rem 0 1rem;
}
.spotlight .num b {
  display: block; font-size: 1.5rem; color: var(--accent);
  font-variant-numeric: tabular-nums; line-height: 1.2;
}
.spotlight .num span { font-size: .82rem; color: var(--ink-3); }

/* demo.html 顶部返回条(该页自带样式,此处仅作用于站点导航) */
.demo-note { font-size: .88rem; color: var(--ink-2); }