:root {
  --paper: #f4f0e6;
  --paper-soft: #fbf8ef;
  --ink: #17211f;
  --muted: #62706a;
  --line: rgba(23, 33, 31, .16);
  --forest: #0a6f5f;
  --marine: #1e5f83;
  --rust: #ad5338;
  --gold: #b78a25;
  --violet: #6750a4;
  --panel: rgba(255, 252, 243, .86);
  --shadow: 0 18px 60px rgba(26, 37, 33, .14);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--paper);
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 14% 10%, rgba(10, 111, 95, .14), transparent 28%),
    radial-gradient(circle at 82% 4%, rgba(173, 83, 56, .14), transparent 28%),
    linear-gradient(90deg, rgba(23, 33, 31, .045) 1px, transparent 1px) 0 0 / 42px 42px,
    linear-gradient(0deg, rgba(23, 33, 31, .032) 1px, transparent 1px) 0 0 / 42px 42px,
    var(--paper);
  font-family: Georgia, "Songti SC", "Noto Serif CJK SC", "SimSun", serif;
  line-height: 1.72;
}

a {
  color: inherit;
}

.skip {
  position: absolute;
  left: 16px;
  top: -44px;
  z-index: 10;
  padding: 8px 12px;
  background: var(--ink);
  color: var(--paper-soft);
  border-radius: var(--radius);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

.skip:focus {
  top: 16px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 14px clamp(18px, 5vw, 70px);
  border-bottom: 1px solid rgba(23, 33, 31, .12);
  background: rgba(244, 240, 230, .88);
  backdrop-filter: blur(14px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .02em;
  text-transform: uppercase;
  white-space: nowrap;
}

.brand-mark {
  width: 22px;
  height: 22px;
  border: 1px solid var(--ink);
  background:
    linear-gradient(135deg, var(--forest) 0 50%, transparent 50%),
    linear-gradient(315deg, var(--rust) 0 50%, var(--paper-soft) 50%);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 13px;
}

.nav a {
  text-decoration: none;
  padding: 6px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 252, 243, .6);
}

.nav a[aria-current="page"],
.nav a:hover {
  background: var(--ink);
  color: var(--paper-soft);
}

.hero {
  min-height: 72vh;
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(320px, .96fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  padding: 70px clamp(18px, 5vw, 70px) 46px;
}

.hero-text {
  max-width: 760px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 18px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  background: rgba(251, 248, 239, .7);
  border-radius: 999px;
  color: var(--muted);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 13px;
}

.eyebrow::before {
  content: "";
  width: 9px;
  height: 9px;
  background: var(--rust);
  border-radius: 50%;
}

h1,
h2,
h3 {
  line-height: 1.18;
  letter-spacing: 0;
}

h1 {
  margin: 0;
  max-width: 880px;
  font-size: clamp(42px, 7vw, 88px);
  font-weight: 800;
}

h2 {
  margin: 0 0 18px;
  font-size: clamp(28px, 4vw, 48px);
}

h3 {
  margin: 0 0 10px;
  font-size: clamp(20px, 2.4vw, 28px);
}

.lede {
  max-width: 680px;
  margin: 24px 0 0;
  color: #32413c;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.78;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 999px;
  color: #27342f;
  font-size: 13px;
}

.map-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(251, 248, 239, .82);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.map-panel img,
.map-panel svg {
  display: block;
  width: 100%;
  height: auto;
}

.section {
  padding: 70px clamp(18px, 5vw, 70px);
}

.section.tight {
  padding-top: 34px;
}

.section-head {
  max-width: 820px;
  margin-bottom: 26px;
}

.kicker {
  margin: 0 0 8px;
  color: var(--rust);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-weight: 800;
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.section-head p,
.body-copy {
  margin: 0;
  max-width: 840px;
  color: #394942;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  min-height: 100%;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: 0 12px 34px rgba(26, 37, 33, .08);
}

.card strong {
  color: var(--ink);
}

.card p {
  margin: 0;
  color: #41514b;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 15px;
}

.card h3 + p,
.card h2 + p {
  margin-top: 8px;
}

.metric {
  display: block;
  margin-bottom: 8px;
  color: var(--forest);
  font-family: Georgia, "Songti SC", serif;
  font-size: 38px;
  font-weight: 800;
  line-height: 1;
}

.toc {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.toc a {
  display: block;
  min-height: 104px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  text-decoration: none;
}

.toc span {
  display: block;
  color: var(--muted);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 13px;
}

.toc strong {
  display: block;
  margin-top: 12px;
  font-size: 20px;
  line-height: 1.2;
}

.profile-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.profile {
  position: relative;
  padding-top: 54px;
}

.profile .num {
  position: absolute;
  left: 20px;
  top: 18px;
  color: var(--muted);
  font-family: Georgia, serif;
  font-weight: 800;
}

.profile .tagline {
  margin-bottom: 12px;
  color: var(--forest);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  font-weight: 800;
}

.profile dl,
.fact-list {
  margin: 14px 0 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

.profile dt {
  float: left;
  clear: left;
  width: 64px;
  color: var(--muted);
  font-size: 13px;
}

.profile dd {
  margin: 0 0 7px 72px;
  color: #34443e;
  font-size: 14px;
}

.matrix {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--line);
  background: var(--panel);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

.matrix th,
.matrix td {
  vertical-align: top;
  padding: 14px;
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  text-align: left;
  font-size: 14px;
}

.matrix th {
  background: rgba(23, 33, 31, .06);
  color: var(--ink);
}

.quote {
  margin: 0;
  padding: 22px;
  border-left: 4px solid var(--rust);
  background: rgba(251, 248, 239, .78);
  font-size: clamp(20px, 3vw, 34px);
  line-height: 1.42;
}

.quote cite {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  font-style: normal;
}

.timeline {
  display: grid;
  gap: 12px;
}

.time-row {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr);
  gap: 16px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.time {
  color: var(--rust);
  font-family: Georgia, serif;
  font-weight: 800;
}

.time-row p {
  margin: 0;
  color: #40504a;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 15px;
}

.action-list {
  counter-reset: action;
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.action-list li {
  counter-increment: action;
  position: relative;
  padding: 20px 20px 20px 64px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.action-list li::before {
  content: counter(action);
  position: absolute;
  left: 20px;
  top: 20px;
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  background: var(--ink);
  color: var(--paper-soft);
  border-radius: 50%;
  font-family: Georgia, serif;
  font-weight: 800;
}

.action-list p,
.source-note,
.footer p {
  margin: 6px 0 0;
  color: #3f5049;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 15px;
}

.source-note {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(251, 248, 239, .7);
}

.appendix-section {
  margin-bottom: 18px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.appendix-section ul {
  margin: 10px 0 0;
  padding-left: 20px;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: #3d4c46;
}

.footer {
  padding: 38px clamp(18px, 5vw, 70px) 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

@media (max-width: 960px) {
  .topbar {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    justify-content: flex-start;
  }

  .hero,
  .grid,
  .grid.two,
  .profile-grid,
  .toc {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 42px;
  }
}

@media (max-width: 640px) {
  .section {
    padding: 48px 18px;
  }

  .hero {
    padding: 40px 18px 30px;
  }

  .time-row {
    grid-template-columns: 1fr;
  }

  .matrix {
    display: block;
    overflow-x: auto;
  }

  .profile dt {
    float: none;
    width: auto;
    margin-bottom: 2px;
  }

  .profile dd {
    margin-left: 0;
  }
}