:root {
  color-scheme: light;
  --bg: #fbfbf9;
  --ink: #202124;
  --muted: #5f6368;
  --soft: #ece8df;
  --line: #d8d2c5;
  --green: #2f6f48;
  --rust: #9d4e2d;
  --gold: #b0832f;
  --panel: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

body {
  margin: 0;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
}

a {
  color: inherit;
  text-decoration: none;
}

.page {
  width: min(1040px, calc(100% - 40px));
  margin: 0 auto;
  padding: 48px 0 56px;
}

.intro {
  min-height: 520px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  align-items: center;
  gap: 56px;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--green);
  font-size: 14px;
  font-weight: 700;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 780px;
  margin-bottom: 22px;
  font-size: 44px;
  line-height: 1.18;
  font-weight: 760;
}

.lead {
  max-width: 720px;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 18px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.actions a {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.72);
  color: #2b2b2b;
  font-size: 14px;
}

.actions a:hover {
  border-color: var(--green);
  color: var(--green);
}

.signal {
  margin: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.signal img {
  display: block;
  width: 100%;
  height: auto;
}

.section {
  padding: 52px 0;
  border-bottom: 1px solid var(--line);
}

.section h2 {
  margin-bottom: 24px;
  color: var(--green);
  font-size: 24px;
  line-height: 1.3;
}

.section h3 {
  margin-bottom: 8px;
  font-size: 17px;
  line-height: 1.35;
}

.section p {
  color: var(--muted);
}

.focus-grid,
.principles {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.focus-grid article,
.principles article {
  min-height: 164px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.68);
}

.focus-grid p,
.principles p {
  margin-bottom: 0;
  font-size: 14px;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 64px;
  align-items: start;
}

.split p {
  max-width: 720px;
  font-size: 16px;
}

.facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 54px;
}

.facts span {
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: #414141;
  font-size: 13px;
}

.timeline ol {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline li {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 18px;
  padding: 18px 0;
  border-top: 1px solid var(--soft);
}

.timeline li:first-child {
  border-top: 0;
}

.timeline time {
  color: var(--rust);
  font-weight: 700;
}

.timeline span {
  color: var(--muted);
}

.footer {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  padding-top: 28px;
  color: #747474;
  font-size: 13px;
}

.footer span::after {
  content: "/";
  margin-left: 14px;
  color: var(--line);
}

.footer span:last-child::after {
  content: "";
  margin: 0;
}

@media (max-width: 840px) {
  .page {
    width: min(100% - 28px, 680px);
    padding-top: 32px;
  }

  .intro {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 28px;
    padding-bottom: 40px;
  }

  h1 {
    font-size: 32px;
  }

  .lead {
    font-size: 16px;
  }

  .signal {
    max-width: 360px;
  }

  .focus-grid,
  .principles,
  .split {
    grid-template-columns: 1fr;
  }

  .facts {
    padding-top: 0;
  }

  .timeline li {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

@media (max-width: 420px) {
  .page {
    width: calc(100% - 24px);
  }

  h1 {
    font-size: 28px;
  }

  .actions a {
    width: 100%;
    justify-content: center;
  }

  .focus-grid article,
  .principles article {
    min-height: auto;
  }
}