:root {
  --bg: #f7f7f4;
  --panel: #ffffff;
  --text: #232323;
  --muted: #626765;
  --line: #dfddd5;
  --accent: #1f6f68;
  --accent-dark: #174f4b;
  --warm: #b85435;
  --shadow: 0 18px 45px rgba(35, 35, 35, 0.08);
}

* {
  box-sizing: border-box;
}

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

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

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 26px 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  background: var(--text);
  color: #fff;
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
}

.site-nav a {
  padding: 7px 12px;
  border-radius: 8px;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: #ecebe5;
  color: var(--text);
}

main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px 56px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: 28px;
  align-items: stretch;
  min-height: 440px;
  padding: 56px 0 32px;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--warm);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(38px, 6vw, 72px);
  line-height: 1.08;
  letter-spacing: 0;
}

.hero-text,
.lead {
  max-width: 680px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px 16px;
  background: #fff;
  color: var(--text);
  font-weight: 700;
}

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

.button:hover {
  transform: translateY(-1px);
}

.hero-panel {
  align-self: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.hero-panel dl {
  margin: 0;
  padding: 10px 22px;
}

.hero-panel div {
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.hero-panel div:last-child {
  border-bottom: 0;
}

.hero-panel dt {
  color: var(--accent-dark);
  font-weight: 800;
}

.hero-panel dd {
  margin: 5px 0 0;
  color: var(--muted);
}

.section {
  padding: 44px 0;
  border-top: 1px solid var(--line);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 20px;
}

.section h2,
.archive-head h1,
.article h1 {
  margin: 0;
}

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

.post-card,
.archive-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 24px;
}

.post-card h3,
.archive-item h2 {
  margin: 8px 0 10px;
  line-height: 1.35;
}

.post-card p,
.archive-item p {
  color: var(--muted);
}

.post-card.muted {
  background: #fbfaf6;
}

.post-meta {
  margin: 0;
  color: var(--warm);
  font-size: 13px;
  font-weight: 700;
}

.text-link {
  display: inline-flex;
  margin-top: 8px;
  color: var(--accent-dark);
  font-weight: 800;
}

.text-link:hover {
  text-decoration: underline;
}

.split {
  display: grid;
  grid-template-columns: 0.7fr 1fr;
  gap: 28px;
}

.steps {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 18px;
  border-left: 3px solid var(--accent);
  padding: 12px 0 12px 18px;
}

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

.page {
  padding-top: 42px;
}

.archive-head {
  max-width: 760px;
  margin-bottom: 28px;
}

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

.archive-list {
  display: grid;
  gap: 14px;
}

.archive-item {
  display: flex;
  justify-content: space-between;
  gap: 24px;
}

.article {
  max-width: 780px;
  margin: 0 auto;
  border-top: 4px solid var(--accent);
  background: var(--panel);
  border-radius: 8px;
  padding: 38px;
  box-shadow: var(--shadow);
}

.article h1 {
  font-size: clamp(32px, 5vw, 52px);
}

.article h2 {
  margin-top: 34px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
}

.article p,
.article li {
  color: var(--muted);
}

.article pre {
  overflow-x: auto;
  border-radius: 8px;
  background: #202323;
  padding: 18px;
  color: #eef2ee;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  max-width: 1120px;
  margin: 0 auto;
  border-top: 1px solid var(--line);
  padding: 24px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 760px) {
  .site-header,
  .site-footer,
  .archive-item {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-header {
    padding-top: 20px;
  }

  .site-nav {
    width: 100%;
    justify-content: space-between;
  }

  .hero,
  .post-grid,
  .split {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 28px;
  }

  h1 {
    font-size: 38px;
  }

  .article {
    padding: 26px 20px;
  }

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