/* ============================================================
   历史大事件 · 世界编年档案
   设计语汇：纸张、墨色、朱印、金线
   ============================================================ */

:root {
  --paper: #f5f1e7;
  --paper-2: #fbf8f0;
  --paper-3: #efe9db;
  --ink: #1a1815;
  --ink-soft: #464034;
  --muted: #857c6b;
  --line: #ddd4c1;
  --line-soft: #e8e1d2;
  --seal: #a8342a;
  --seal-soft: #c2564a;
  --gold: #a98539;
  --teal: #2c5d57;
  --shadow: 0 18px 40px -24px rgba(40, 33, 20, 0.35);
  --shadow-sm: 0 6px 18px -12px rgba(40, 33, 20, 0.35);
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", Georgia, serif;
  --sans: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", "SFMono-Regular", "Cascadia Mono", Consolas, monospace;
  --radius: 4px;
  --wrap: 1180px;
}

[data-theme="dark"] {
  --paper: #131210;
  --paper-2: #1a1916;
  --paper-3: #211f1a;
  --ink: #f0e9db;
  --ink-soft: #cec5b2;
  --muted: #948b78;
  --line: #322e26;
  --line-soft: #27241e;
  --seal: #d4604e;
  --seal-soft: #e07a68;
  --gold: #d0aa62;
  --teal: #6aa8a0;
  --shadow: 0 20px 50px -28px rgba(0, 0, 0, 0.9);
  --shadow-sm: 0 8px 20px -14px rgba(0, 0, 0, 0.8);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; overflow-x: clip; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

.paper-grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
  background-image:
    radial-gradient(circle at 18% 12%, rgba(168, 52, 42, 0.045), transparent 42%),
    radial-gradient(circle at 82% 4%, rgba(169, 133, 57, 0.06), transparent 38%),
    repeating-linear-gradient(0deg, rgba(120, 100, 60, 0.022) 0 1px, transparent 1px 4px);
}
[data-theme="dark"] .paper-grain { opacity: 0.35; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 32px; }

a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
::selection { background: rgba(168, 52, 42, 0.18); }

/* ------------------------------- 页头 ------------------------------- */
.masthead {
  position: relative;
  padding: 34px 0 46px;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.5), transparent 70%);
}
[data-theme="dark"] .masthead { background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 70%); }

.masthead__bar { display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.brand { display: flex; align-items: center; gap: 14px; }
.brand__seal {
  display: grid;
  place-items: center;
  width: 42px; height: 42px;
  background: var(--seal);
  color: #fff8ec;
  font-family: var(--serif);
  font-size: 23px;
  border-radius: 2px;
  transform: rotate(-3deg);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.22), 0 4px 12px -6px rgba(168, 52, 42, 0.8);
}
.brand__text { display: flex; flex-direction: column; line-height: 1.2; }
.brand__eyebrow {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.22em;
  color: var(--muted);
  text-transform: uppercase;
}
.brand__title { font-family: var(--serif); font-size: 22px; letter-spacing: 0.12em; font-weight: 700; }

.topnav { display: flex; align-items: center; gap: 26px; font-size: 13.5px; }
.topnav a {
  position: relative;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
  padding: 4px 0;
}
.topnav a::after {
  content: "";
  position: absolute; left: 0; right: 100%; bottom: 0;
  height: 1px; background: var(--seal);
  transition: right 0.28s ease;
}
.topnav a:hover::after { right: 0; }

.icon-btn {
  display: grid; place-items: center;
  width: 34px; height: 34px;
  border: 1px solid var(--line);
  background: transparent;
  border-radius: 50%;
  color: var(--ink-soft);
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.icon-btn:hover { border-color: var(--seal); color: var(--seal); background: rgba(168, 52, 42, 0.06); }

.hero { padding-top: 58px; }
.hero__kicker {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--seal);
}
.hero__title {
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(30px, 4.4vw, 52px);
  line-height: 1.32;
  letter-spacing: 0.01em;
}
.hero__title em { font-style: normal; color: var(--seal); }
.hero__lede {
  max-width: 640px;
  margin: 22px 0 0;
  color: var(--ink-soft);
  font-size: 15.5px;
  line-height: 1.9;
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 38px 0 0;
  border-top: 1px solid var(--line);
  padding-top: 0;
}
.hero__stats > div {
  padding: 18px 40px 0 0;
  margin-right: 40px;
  border-right: 1px solid var(--line-soft);
}
.hero__stats > div:last-child { border-right: 0; margin-right: 0; }
.hero__stats dt {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.2em;
  color: var(--muted);
  text-transform: uppercase;
}
.hero__stats dd {
  margin: 4px 0 0;
  font-family: var(--serif);
  font-size: 30px;
  line-height: 1.1;
  letter-spacing: 0.02em;
}

/* --------------------------- 历史上的今天 --------------------------- */
.otd {
  margin-top: 34px;
  padding: 24px 32px 26px;
  border: 1px solid var(--line);
  background: var(--paper-2);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.otd__head { display: flex; align-items: baseline; gap: 16px; margin-bottom: 16px; }
.otd__title {
  margin: 0;
  font-family: var(--serif);
  font-size: 17px;
  letter-spacing: 0.1em;
}
.otd__title::before {
  content: "";
  display: inline-block;
  width: 6px; height: 6px;
  margin-right: 10px;
  background: var(--seal);
  transform: rotate(45deg) translateY(-2px);
}
.otd__date { font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; color: var(--muted); }
.otd__list { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1px; background: var(--line-soft); }
.otd__item {
  display: grid;
  grid-template-columns: 88px 1fr;
  column-gap: 14px;
  align-items: baseline;
  padding: 15px 18px;
  background: var(--paper-2);
  text-align: left;
  border: 0;
  width: 100%;
  transition: background 0.2s;
}
.otd__item:hover { background: var(--paper-3); }
.otd__year { grid-column: 1; grid-row: 1; font-family: var(--mono); font-size: 11px; color: var(--seal); letter-spacing: 0.06em; }
.otd__name { grid-column: 2; grid-row: 1; margin: 0; font-family: var(--serif); font-size: 15.5px; line-height: 1.55; }
.otd__sum { grid-column: 2; grid-row: 2; margin: 4px 0 0; font-size: 12.5px; color: var(--muted); line-height: 1.65; }

/* ------------------------------- 工具栏 ------------------------------ */
.toolbar {
  position: sticky;
  top: 0;
  z-index: 30;
  margin-top: 40px;
  padding: 14px 0 12px;
  background: var(--paper);
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.toolbar__row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.toolbar__eras {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 12px;
}

.search {
  position: relative;
  flex: 1 1 260px;
  display: flex;
  align-items: center;
  min-width: 220px;
  border: 1px solid var(--line);
  background: var(--paper-2);
  border-radius: 2px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.search:focus-within { border-color: var(--seal); box-shadow: 0 0 0 3px rgba(168, 52, 42, 0.08); }
.search__icon { margin: 0 10px 0 12px; color: var(--muted); flex: none; }
.search input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  padding: 9px 0;
  font-size: 13.5px;
  outline: none;
}
.search input::placeholder { color: var(--muted); }
.search input::-webkit-search-cancel-button { display: none; }
.search__clear {
  border: 0; background: transparent; color: var(--muted);
  font-size: 18px; line-height: 1; padding: 0 12px;
}
.search__clear:hover { color: var(--seal); }

.segmented {
  display: flex;
  border: 1px solid var(--line);
  border-radius: 2px;
  overflow: hidden;
  background: var(--paper-2);
}
.segmented button {
  border: 0;
  background: transparent;
  padding: 8px 15px;
  font-size: 12.5px;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
  border-right: 1px solid var(--line-soft);
  transition: background 0.18s, color 0.18s;
}
.segmented button:last-child { border-right: 0; }
.segmented button:hover { color: var(--seal); }
.segmented button.is-active { background: var(--ink); color: var(--paper); }
[data-theme="dark"] .segmented button.is-active { background: var(--seal); color: #fff; }

.select { display: flex; align-items: center; gap: 7px; font-size: 12px; color: var(--muted); }
.select > span { letter-spacing: 0.1em; white-space: nowrap; }
.select select {
  border: 1px solid var(--line);
  background: var(--paper-2);
  border-radius: 2px;
  padding: 7px 26px 7px 10px;
  font-size: 12.5px;
  color: var(--ink-soft);
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, currentColor 50%), linear-gradient(135deg, currentColor 50%, transparent 50%);
  background-position: calc(100% - 13px) 52%, calc(100% - 8px) 52%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  outline: none;
}
.select select:focus { border-color: var(--seal); }

.viewswitch { display: flex; border: 1px solid var(--line); border-radius: 2px; overflow: hidden; background: var(--paper-2); }
.viewswitch button {
  border: 0; background: transparent; padding: 7px 9px; color: var(--muted);
  display: grid; place-items: center;
}
.viewswitch button.is-active { background: var(--paper-3); color: var(--ink); }
.viewswitch button:hover { color: var(--seal); }

.eras { display: flex; gap: 6px; overflow-x: auto; padding: 2px 0; scrollbar-width: none; }
.eras::-webkit-scrollbar { display: none; }
.eras button {
  flex: none;
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  padding: 5px 11px;
  font-size: 12.5px;
  border-radius: 999px;
  white-space: nowrap;
  transition: all 0.18s;
}
.eras button:hover { color: var(--ink); border-color: var(--line); }
.eras button.is-active { color: var(--seal); border-color: rgba(168, 52, 42, 0.4); background: rgba(168, 52, 42, 0.06); }
.eras button .n { font-family: var(--mono); font-size: 10px; opacity: 0.65; margin-left: 5px; }

.linkbtn {
  flex: none;
  border: 0; background: transparent;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--line);
  padding: 2px 0;
}
.linkbtn:hover { color: var(--seal); border-color: var(--seal); }

/* ------------------------------- 结果区 ------------------------------ */
.results-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding: 26px 0 6px;
}
.results-head p { margin: 0; font-size: 12.5px; color: var(--muted); letter-spacing: 0.06em; }
.results-head__right { display: flex; align-items: center; gap: 16px; }
.results-head__hint { font-size: 11.5px !important; opacity: 0.8; }
.ghostbtn {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink-soft);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  padding: 5px 12px;
  border-radius: 2px;
  white-space: nowrap;
  transition: all 0.18s;
}
.ghostbtn:hover { border-color: var(--seal); color: var(--seal); background: rgba(168, 52, 42, 0.05); }
#resultCount strong { color: var(--ink); font-weight: 600; font-family: var(--mono); }

.timeline { position: relative; padding-bottom: 10px; }

.era-block { position: relative; padding: 34px 0 4px; }
.era-block__head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 6px;
}
.era-block__name {
  margin: 0;
  font-family: var(--serif);
  font-size: 20px;
  letter-spacing: 0.14em;
  font-weight: 600;
}
.era-block__range { font-family: var(--mono); font-size: 10.5px; color: var(--muted); letter-spacing: 0.08em; }
.era-block__count { margin-left: auto; font-family: var(--mono); font-size: 10.5px; color: var(--muted); }

.event {
  position: relative;
  display: grid;
  grid-template-columns: 128px 1fr;
  gap: 24px;
  padding: 20px 0 20px 0;
  border-bottom: 1px dashed var(--line-soft);
  cursor: pointer;
  transition: background 0.2s;
}
.event::before {
  content: "";
  position: absolute;
  left: 125px; top: 30px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--paper);
  border: 1px solid var(--line);
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}
.event:hover::before { background: var(--seal); border-color: var(--seal); transform: scale(1.2); }
.event:hover { background: linear-gradient(90deg, rgba(168, 52, 42, 0.035), transparent 55%); }

.event__year {
  text-align: right;
  padding-top: 0;
  border-right: 1px solid var(--line-soft);
  padding-right: 22px;
}
.event__y {
  display: block;
  font-family: var(--mono);
  font-size: 19px;
  letter-spacing: -0.02em;
  color: var(--ink);
  line-height: 1.35;
}
.event__date { display: block; font-family: var(--mono); font-size: 10px; color: var(--muted); margin-top: 3px; letter-spacing: 0.04em; }

.event__body { min-width: 0; }
.event__head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.event__title {
  margin: 0;
  font-family: var(--serif);
  font-size: 17.5px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.01em;
}
.event:hover .event__title { color: var(--seal); }
.event__summary {
  margin: 6px 0 0;
  color: var(--ink-soft);
  font-size: 13.5px;
  line-height: 1.75;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.event__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  margin-top: 10px;
  font-size: 11.5px;
  color: var(--muted);
}
.event__loc::before { content: "◎"; margin-right: 5px; opacity: 0.7; }
.event__tags { display: flex; gap: 6px; flex-wrap: wrap; }
.tag {
  font-size: 10.5px;
  color: var(--muted);
  border: 1px solid var(--line-soft);
  padding: 1px 7px;
  border-radius: 999px;
  letter-spacing: 0.03em;
}
.imp { margin-left: auto; color: var(--gold); letter-spacing: 2px; font-size: 10px; }
.imp span { opacity: 0.22; }
.imp span.on { opacity: 1; }

.chip {
  flex: none;
  font-size: 10px;
  letter-spacing: 0.12em;
  padding: 2px 7px;
  border-radius: 2px;
  border: 1px solid currentColor;
  color: var(--muted);
  line-height: 1.6;
}
.chip[data-cat="政治"] { color: #8c3b32; }
.chip[data-cat="军事"] { color: #6d4a36; }
.chip[data-cat="科技"] { color: #2f5f70; }
.chip[data-cat="文化"] { color: #7a5a2a; }
.chip[data-cat="思想"] { color: #5a4a72; }
.chip[data-cat="经济"] { color: #3d6350; }
.chip[data-cat="探索"] { color: #2d6a63; }
.chip[data-cat="灾难"] { color: #7a3f3f; }
.chip[data-cat="体育"] { color: #4b5d3a; }
[data-theme="dark"] .chip[data-cat] { filter: brightness(1.5); }

mark { background: rgba(169, 133, 57, 0.3); color: inherit; padding: 0 1px; border-radius: 2px; }

/* 卡片视图 */
.timeline.is-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; padding-top: 20px; }
.timeline.is-grid .era-block { display: contents; }
.timeline.is-grid .era-block__head { grid-column: 1 / -1; margin-top: 18px; }
.timeline.is-grid .event {
  grid-template-columns: 1fr;
  gap: 0;
  padding: 20px 22px;
  border: 1px solid var(--line);
  background: var(--paper-2);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.timeline.is-grid .event::before { display: none; }
.timeline.is-grid .event:hover { transform: translateY(-2px); border-color: rgba(168, 52, 42, 0.35); }
.timeline.is-grid .event__year {
  text-align: left;
  border-right: 0;
  padding: 0 0 8px;
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.timeline.is-grid .event__y { font-size: 12px; letter-spacing: 0.12em; color: var(--seal); }
.timeline.is-grid .event__date { margin: 0; }
.timeline.is-grid .event__summary { -webkit-line-clamp: 3; }

.empty {
  padding: 70px 0;
  text-align: center;
  color: var(--muted);
  font-size: 13.5px;
}
.empty__mark {
  display: block;
  font-family: var(--serif);
  font-size: 40px;
  color: var(--line);
  margin-bottom: 10px;
}
.loadmore-wrap { text-align: center; padding: 32px 0 10px; }
.loadmore {
  border: 1px solid var(--line);
  background: var(--paper-2);
  color: var(--ink-soft);
  padding: 10px 30px;
  font-size: 12.5px;
  letter-spacing: 0.14em;
  border-radius: 2px;
  transition: all 0.2s;
}
.loadmore:hover { border-color: var(--seal); color: var(--seal); }
.loadmore__note { margin: 12px 0 0; font-size: 11px; color: var(--muted); font-family: var(--mono); letter-spacing: 0.06em; }

/* ------------------------------- 统计 ------------------------------- */
.stats { padding: 20px 32px 10px; }
.section-head { margin-bottom: 18px; }
.section-head h3 { margin: 0; font-family: var(--serif); font-size: 20px; letter-spacing: 0.12em; }
.section-head p { margin: 4px 0 0; font-size: 12.5px; color: var(--muted); }
.stats__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.panel {
  border: 1px solid var(--line);
  background: var(--paper-2);
  padding: 20px 22px 24px;
  border-radius: var(--radius);
}
.panel h4 { margin: 0 0 16px; font-size: 12px; letter-spacing: 0.16em; color: var(--muted); font-weight: 500; }
.bars { display: flex; flex-direction: column; gap: 10px; }
.bar-row { display: grid; grid-template-columns: 92px 1fr 40px; align-items: center; gap: 12px; font-size: 12px; }
.bar-row__label { color: var(--ink-soft); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bar-row__track { height: 6px; background: var(--paper-3); border-radius: 3px; overflow: hidden; }
.bar-row__fill { display: block; height: 100%; background: var(--ink-soft); border-radius: 3px; transition: width 0.6s cubic-bezier(0.2, 0.7, 0.3, 1); }
.bar-row:nth-child(3n) .bar-row__fill { background: var(--seal); }
.bar-row:nth-child(3n + 1) .bar-row__fill { background: var(--gold); }
.bar-row__n { font-family: var(--mono); font-size: 10.5px; color: var(--muted); text-align: right; }

/* ------------------------------- 页脚 ------------------------------- */
.footer {
  margin-top: 70px;
  border-top: 1px solid var(--line);
  padding: 34px 0 40px;
  background: var(--paper-2);
}
.footer__inner { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.footer__brand { margin: 0; font-family: var(--serif); font-size: 15px; letter-spacing: 0.1em; }
.footer__note { margin: 8px 0 0; font-size: 11.5px; color: var(--muted); line-height: 1.9; }
.footer__links { display: flex; flex-direction: column; gap: 7px; font-size: 12px; color: var(--ink-soft); }
.footer__links a { border-bottom: 1px solid transparent; width: fit-content; }
.footer__links a:hover { color: var(--seal); border-color: var(--seal); }
.footer__meta {
  display: flex; justify-content: space-between; gap: 20px;
  margin-top: 26px; padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--mono); font-size: 10px; color: var(--muted); letter-spacing: 0.08em;
}

/* ------------------------------- 抽屉 ------------------------------- */
.scrim {
  position: fixed; inset: 0; z-index: 60;
  background: rgba(20, 16, 10, 0.42);
  backdrop-filter: blur(2px);
  animation: fade 0.24s ease;
}
.drawer {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  z-index: 70;
  width: min(560px, 94vw);
  background: var(--paper-2);
  border-left: 1px solid var(--line);
  box-shadow: -30px 0 60px -40px rgba(0, 0, 0, 0.5);
  transform: translateX(102%);
  transition: transform 0.34s cubic-bezier(0.3, 0.8, 0.3, 1);
  display: flex;
  flex-direction: column;
}
.drawer.is-open { transform: translateX(0); }
.drawer__bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px;
  border-bottom: 1px solid var(--line);
  flex: none;
}
.drawer__label { font-family: var(--mono); font-size: 10px; letter-spacing: 0.22em; color: var(--muted); }
.drawer__bar .icon-btn { border-radius: 50%; font-size: 20px; line-height: 1; }
.drawer__body { padding: 26px 30px 50px; overflow-y: auto; }

.dw-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.dw-year { font-family: var(--mono); font-size: 11px; letter-spacing: 0.16em; color: var(--seal); }
.dw-title {
  margin: 0 0 14px;
  font-family: var(--serif);
  font-size: clamp(22px, 3vw, 28px);
  line-height: 1.45;
  letter-spacing: 0.01em;
}
.dw-summary {
  margin: 0 0 20px;
  padding: 14px 16px;
  border-left: 2px solid var(--seal);
  background: var(--paper-3);
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--ink-soft);
}
.dw-detail { margin: 0 0 24px; font-size: 14px; line-height: 1.95; color: var(--ink-soft); }
.dw-detail::first-letter { font-size: 1.05em; }
.dw-meta { margin: 0 0 24px; border-top: 1px solid var(--line); }
.dw-meta > div {
  display: grid; grid-template-columns: 74px 1fr; gap: 12px;
  padding: 9px 0; border-bottom: 1px solid var(--line-soft);
  font-size: 12.5px;
}
.dw-meta dt { color: var(--muted); font-size: 11px; letter-spacing: 0.1em; }
.dw-meta dd { margin: 0; color: var(--ink-soft); }
.dw-figures { display: flex; flex-wrap: wrap; gap: 6px; }
.dw-figures span {
  font-size: 11.5px; padding: 2px 8px;
  background: var(--paper-3); border-radius: 2px; color: var(--ink-soft);
}
.dw-sub { margin: 0 0 12px; font-family: var(--mono); font-size: 10px; letter-spacing: 0.2em; color: var(--muted); }
.dw-related { display: flex; flex-direction: column; gap: 1px; background: var(--line-soft); margin-bottom: 26px; }
.dw-related button {
  border: 0; background: var(--paper-2); text-align: left;
  padding: 11px 14px; display: flex; gap: 12px; align-items: baseline;
  font-size: 12.5px; color: var(--ink-soft);
}
.dw-related button:hover { background: var(--paper-3); color: var(--seal); }
.dw-related .y { font-family: var(--mono); font-size: 10.5px; color: var(--muted); flex: none; width: 54px; text-align: right; }
.dw-api { border: 1px solid var(--line); padding: 14px 16px; border-radius: 2px; background: var(--paper-3); }
.dw-api code { font-family: var(--mono); font-size: 11px; color: var(--ink-soft); word-break: break-all; display: block; }
.dw-api .copy {
  margin-top: 10px; border: 1px solid var(--line); background: var(--paper-2);
  font-size: 11px; padding: 5px 12px; border-radius: 2px; color: var(--muted);
}
.dw-api .copy:hover { border-color: var(--seal); color: var(--seal); }

@keyframes fade { from { opacity: 0; } to { opacity: 1; } }

/* ------------------------------- 响应式 ------------------------------ */
@media (max-width: 980px) {
  .hero__stats > div { padding-right: 26px; margin-right: 26px; }
  .timeline.is-grid { grid-template-columns: 1fr; }
  .stats__grid { grid-template-columns: 1fr; }
  .otd__list { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .wrap { padding: 0 18px; }
  .masthead { padding: 20px 0 30px; }
  .masthead__bar { gap: 12px; }
  .brand { gap: 10px; }
  .brand__seal { width: 36px; height: 36px; font-size: 20px; }
  .brand__title { font-size: 18px; letter-spacing: 0.08em; }
  .brand__eyebrow { display: none; }
  .topnav { gap: 12px; font-size: 12px; }
  .topnav a:nth-child(2) { display: none; }
  .icon-btn { width: 30px; height: 30px; flex: none; }
  .hero { padding-top: 34px; }
  .hero__lede { font-size: 14px; }
  .hero__stats { margin-top: 26px; }
  .hero__stats > div { padding: 14px 16px 0 0; margin-right: 16px; }
  .hero__stats dd { font-size: 22px; }
  .otd { padding: 18px 18px 20px; margin-top: 24px; }
  .toolbar { margin-top: 26px; padding: 10px 0; }
  .toolbar__row { gap: 8px; }
  .search { flex: 1 1 100%; }
  .segmented button { padding: 7px 12px; }
  .select { font-size: 11px; gap: 5px; }
  .select select { padding: 6px 22px 6px 8px; font-size: 11.5px; }
  .toolbar__eras { margin-top: 8px; }
  .event { grid-template-columns: 76px 1fr; gap: 14px; }
  .event::before { left: 73px; top: 24px; width: 6px; height: 6px; }
  .event__year { padding-right: 12px; }
  .event__y { font-size: 14px; }
  .event__title { font-size: 16px; }
  .event__summary { font-size: 12.5px; -webkit-line-clamp: 2; }
  .imp { display: none; }
  .results-head__hint { display: none; }
  .drawer__body { padding: 20px 20px 40px; }
  .footer__meta { flex-direction: column; gap: 6px; }
  .dw-meta > div { grid-template-columns: 64px 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}