:root {
  color-scheme: light;
  --ink: #16211f;
  --muted: #5d6865;
  --paper: #f8f6f0;
  --surface: #ffffff;
  --line: #d8d2c5;
  --teal: #1f6f68;
  --brass: #aa7a34;
  --red: #b44537;
  --shadow: 0 18px 50px rgba(22, 33, 31, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 68px;
  padding: 0 5vw;
  border-bottom: 1px solid rgba(216, 210, 197, 0.86);
  background: rgba(248, 246, 240, 0.92);
  backdrop-filter: blur(12px);
}

.brand {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0;
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
}

.nav a:hover,
.post-card h3 a:hover,
.back-link:hover {
  color: var(--teal);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 1.08fr);
  align-items: center;
  gap: 46px;
  min-height: calc(100vh - 68px);
  padding: 7vh 5vw 8vh;
}

.hero-copy {
  max-width: 720px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--red);
  font-size: 13px;
  font-weight: 750;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

.hero h1 {
  margin-bottom: 24px;
  font-size: clamp(42px, 7vw, 86px);
  line-height: 1.04;
  letter-spacing: 0;
}

.lede {
  max-width: 620px;
  margin-bottom: 32px;
  color: var(--muted);
  font-size: 19px;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 720;
}

.button.primary {
  border-color: var(--ink);
  background: var(--ink);
  color: #fff;
}

.button.secondary {
  background: rgba(255, 255, 255, 0.58);
}

.hero-visual {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(216, 210, 197, 0.92);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.hero-visual img {
  width: 100%;
  aspect-ratio: 16 / 11;
  object-fit: cover;
}

.section {
  padding: 74px 5vw;
  border-top: 1px solid var(--line);
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 420px);
  gap: 32px;
  background: var(--surface);
}

.intro h2,
.section-title h2 {
  margin-bottom: 14px;
  font-size: clamp(26px, 4vw, 42px);
  line-height: 1.16;
  letter-spacing: 0;
}

.intro p,
.about p {
  max-width: 820px;
  color: var(--muted);
  font-size: 18px;
}

.pillars {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  align-self: start;
  padding: 0;
  margin: 0;
  list-style: none;
}

.pillars li {
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfaf6;
  font-weight: 720;
}

.posts {
  background: #f0eee6;
}

.section-title {
  margin-bottom: 24px;
}

.post-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: 960px;
  padding: 28px;
  border: 1px solid rgba(216, 210, 197, 0.95);
  border-radius: 8px;
  background: var(--surface);
}

.post-card time,
.article-meta {
  color: var(--brass);
  font-size: 14px;
  font-weight: 720;
}

.post-card h3 {
  margin: 8px 0 10px;
  font-size: 28px;
  line-height: 1.24;
}

.post-card p {
  max-width: 700px;
  margin-bottom: 0;
  color: var(--muted);
}

.read-more {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 40px;
  border-radius: 8px;
  background: var(--teal);
  color: #fff;
  font-weight: 760;
}

.notes {
  background: var(--surface);
}

.note-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.note-grid article {
  padding: 24px;
  border-left: 4px solid var(--brass);
  background: #f8f6f0;
}

.note-grid h3 {
  margin-bottom: 8px;
  font-size: 22px;
}

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

.about {
  background: #fbfaf6;
}

.site-footer {
  padding: 28px 5vw;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.site-footer p {
  margin: 0;
}

.article-shell {
  padding: 64px 5vw 90px;
}

.article {
  max-width: 760px;
  margin: 0 auto;
}

.back-link {
  display: inline-flex;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 14px;
}

.article h1 {
  margin-bottom: 10px;
  font-size: clamp(34px, 6vw, 58px);
  line-height: 1.12;
  letter-spacing: 0;
}

.article-meta {
  margin-bottom: 38px;
}

.article p {
  color: #26312f;
  font-size: 18px;
}

@media (max-width: 860px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding-top: 14px;
    padding-bottom: 14px;
  }

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

  .hero-visual {
    order: -1;
  }

  .intro,
  .note-grid {
    grid-template-columns: 1fr;
  }

  .post-card {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .nav {
    width: 100%;
    justify-content: space-between;
    gap: 12px;
  }

  .hero h1 {
    font-size: 40px;
  }

  .lede,
  .intro p,
  .about p,
  .article p {
    font-size: 16px;
  }

  .pillars {
    grid-template-columns: 1fr;
  }

  .post-card {
    padding: 22px;
  }
}