:root {
  --ink: #17211f;
  --muted: #60706c;
  --line: #dce4df;
  --paper: #f7f4ee;
  --panel: #ffffff;
  --field: #e7efe8;
  --moss: #23483c;
  --moss-soft: #d6e5db;
  --clay: #c9563e;
  --gold: #d5a247;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(35, 72, 60, 0.12), transparent 34%),
    linear-gradient(180deg, #fbfaf6 0%, var(--paper) 100%);
  font-family: "Noto Serif SC", "Songti SC", "STSong", serif;
}

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

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 22px;
  font-weight: 700;
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  object-fit: cover;
}

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

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.7fr);
  gap: 48px;
  align-items: end;
  max-width: 1180px;
  min-height: calc(100vh - 180px);
  margin: 0 auto;
  padding: 72px 24px 44px;
}

.hero-copy h1 {
  max-width: 760px;
  margin: 12px 0 22px;
  font-size: clamp(48px, 7vw, 92px);
  line-height: 1.05;
  letter-spacing: 0;
}

.lead {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.8;
}

.eyebrow {
  margin: 0;
  color: var(--clay);
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 6px;
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-weight: 700;
}

.primary-action {
  background: var(--moss);
  color: #fff;
}

.secondary-action {
  border: 1px solid var(--moss);
  color: var(--moss);
}

.hero-panel {
  display: grid;
  gap: 14px;
}

.hero-panel div,
.feature-grid article,
.contact-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 16px 40px rgba(23, 33, 31, 0.07);
}

.hero-panel div {
  padding: 22px;
}

.hero-panel span {
  color: var(--gold);
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 13px;
  font-weight: 800;
}

.hero-panel strong {
  display: block;
  margin: 12px 0 8px;
  font-size: 22px;
}

.hero-panel p,
.feature-grid p,
.split-content,
.download-band p {
  color: var(--muted);
  line-height: 1.75;
}

.section {
  max-width: 1180px;
  margin: 0 auto;
  padding: 72px 24px;
}

.section-heading h2,
.download-band h2 {
  margin: 8px 0 0;
  font-size: 38px;
  line-height: 1.2;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 28px;
}

.feature-grid article {
  min-height: 188px;
  padding: 26px;
}

.feature-grid h3 {
  margin: 0 0 14px;
  font-size: 23px;
}

.split-section {
  display: grid;
  grid-template-columns: 0.55fr 1fr;
  gap: 48px;
  border-top: 1px solid var(--line);
}

.split-content {
  display: grid;
  gap: 22px;
  font-size: 18px;
}

.plain-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.plain-list li {
  padding: 14px 16px;
  border-left: 4px solid var(--moss);
  background: var(--field);
  color: var(--moss);
  font-weight: 700;
}

.download-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  background: var(--moss-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.download-band p {
  max-width: 720px;
  margin-bottom: 0;
  font-size: 18px;
}

.contact-section {
  display: grid;
  grid-template-columns: 0.55fr 1fr;
  gap: 48px;
}

.contact-card {
  padding: 26px;
}

.contact-card span {
  display: block;
  color: var(--muted);
  margin-bottom: 8px;
}

.contact-card a {
  color: var(--moss);
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 22px;
  font-weight: 700;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 24px 42px;
  color: var(--muted);
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
}

.site-footer a {
  color: var(--moss);
}

@media (max-width: 780px) {
  .site-header,
  .nav-links,
  .download-band,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    gap: 12px;
  }

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

  .hero {
    min-height: auto;
    padding-top: 44px;
  }

  .lead,
  .split-content,
  .download-band p {
    font-size: 17px;
  }

  .feature-grid,
  .plain-list {
    grid-template-columns: 1fr;
  }
}