:root {
  color-scheme: light;
  --paper: #f7f4ee;
  --ink: #192028;
  --muted: #66717d;
  --line: #d8d1c6;
  --white: #fffdf8;
  --teal: #0f6b68;
  --red: #a7342f;
  --gold: #ba7b2c;
  --blue: #233b63;
  --shadow: 0 22px 60px rgba(25, 32, 40, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

img {
  display: block;
  max-width: 100%;
}

.site-header {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 48px;
  border-bottom: 1px solid rgba(25, 32, 40, 0.1);
  background: rgba(247, 244, 238, 0.92);
  backdrop-filter: blur(16px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.brand {
  font-weight: 800;
  font-size: 20px;
  color: var(--ink);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 15px;
}

.nav-links a {
  padding: 8px 0;
}

.nav-links a:hover {
  color: var(--teal);
}

.hero {
  min-height: calc(100vh - 72px);
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  gap: 48px;
  align-items: center;
  padding: 64px 48px 72px;
  max-width: 1280px;
  margin: 0 auto;
}

.hero-copy {
  max-width: 650px;
}

.eyebrow,
.kicker {
  margin: 0 0 14px;
  color: var(--red);
  font-weight: 800;
  font-size: 13px;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 18px;
  font-size: 76px;
  line-height: 1;
  font-weight: 900;
  letter-spacing: 0;
}

.lead {
  margin-bottom: 30px;
  color: #2f3843;
  font-size: 24px;
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 6px;
  font-weight: 800;
  border: 1px solid var(--ink);
}

.button.primary {
  background: var(--ink);
  color: var(--white);
}

.button.secondary {
  background: transparent;
  color: var(--ink);
}

.button:hover {
  border-color: var(--teal);
  color: var(--teal);
}

.button.primary:hover {
  background: var(--teal);
  color: var(--white);
}

.hero-media {
  margin: 0;
}

.hero-media img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: var(--shadow);
  background: #ded8ce;
}

.hero-media figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
}

.identity-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.identity-band article {
  min-height: 210px;
  padding: 34px 36px;
  border-right: 1px solid var(--line);
}

.identity-band article:last-child {
  border-right: 0;
}

.identity-band span {
  display: inline-block;
  margin-bottom: 24px;
  color: var(--gold);
  font-weight: 900;
}

.identity-band h2 {
  margin-bottom: 10px;
  font-size: 24px;
}

.identity-band p {
  margin-bottom: 0;
  color: var(--muted);
}

.section {
  padding: 88px 48px;
  max-width: 1160px;
  margin: 0 auto;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 38px;
}

.section-heading h2 {
  margin-bottom: 0;
  font-size: 38px;
  line-height: 1.25;
  letter-spacing: 0;
}

.timeline {
  display: grid;
  gap: 22px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 22px;
  padding: 28px 0 28px 22px;
  border-top: 1px solid var(--line);
}

.timeline-item:last-child {
  border-bottom: 1px solid var(--line);
}

.marker {
  width: 14px;
  height: 14px;
  margin-top: 9px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 6px rgba(15, 107, 104, 0.12);
}

.timeline-item h3 {
  margin-bottom: 10px;
  font-size: 27px;
  line-height: 1.3;
}

.timeline-item p:last-child {
  margin-bottom: 0;
  max-width: 780px;
  color: var(--muted);
}

.focus-section {
  max-width: none;
  background: #eaf0ee;
}

.focus-section .section-heading,
.focus-grid {
  max-width: 1160px;
  margin-left: auto;
  margin-right: auto;
}

.focus-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.focus-grid article {
  min-height: 210px;
  padding: 24px;
  border: 1px solid rgba(15, 107, 104, 0.18);
  border-radius: 8px;
  background: rgba(255, 253, 248, 0.78);
}

.focus-grid h3 {
  margin-bottom: 12px;
  font-size: 21px;
  color: var(--blue);
}

.focus-grid p {
  margin-bottom: 0;
  color: var(--muted);
}

.source-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.source-list a {
  display: grid;
  gap: 8px;
  min-height: 126px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.source-list a:hover {
  border-color: var(--teal);
  box-shadow: 0 14px 36px rgba(25, 32, 40, 0.08);
}

.source-list span {
  color: var(--gold);
  font-size: 13px;
  font-weight: 900;
}

.source-list strong {
  font-size: 20px;
  line-height: 1.42;
}

.site-footer {
  min-height: 92px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer p {
  margin: 0;
}

@media (max-width: 920px) {
  .site-header {
    padding: 0 24px;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding: 48px 24px 56px;
  }

  h1 {
    font-size: 58px;
  }

  .lead {
    font-size: 21px;
  }

  .identity-band,
  .focus-grid,
  .source-list {
    grid-template-columns: 1fr;
  }

  .identity-band article {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .identity-band article:last-child {
    border-bottom: 0;
  }

  .section {
    padding: 68px 24px;
  }

  .section-heading h2 {
    font-size: 32px;
  }
}

@media (max-width: 560px) {
  .site-header {
    min-height: 64px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
  }

  .nav-links {
    gap: 16px;
    font-size: 14px;
  }

  .hero {
    padding-top: 38px;
  }

  h1 {
    font-size: 46px;
  }

  .lead {
    font-size: 19px;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .section-heading h2 {
    font-size: 28px;
  }

  .identity-band article {
    padding: 28px 24px;
  }

  .timeline-item {
    grid-template-columns: 18px minmax(0, 1fr);
    gap: 16px;
    padding-left: 6px;
  }

  .timeline-item h3 {
    font-size: 23px;
  }

  .site-footer {
    min-height: 108px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: 24px;
  }
}