:root {
  --bg: #f7f3ea;
  --surface: #ffffff;
  --ink: #20231f;
  --muted: #62685f;
  --primary: #1f5a48;
  --primary-dark: #173f34;
  --bronze: #a86f3d;
  --border: #ddd5c7;
  --paper: #efe7d8;
  --radius: 8px;
  --shadow: 0 18px 45px rgba(32, 35, 31, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

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

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(221, 213, 199, 0.82);
  background: rgba(247, 243, 234, 0.94);
  backdrop-filter: blur(16px);
}

.nav {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid var(--primary);
  border-radius: 50%;
  color: var(--primary);
  font-size: 18px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a {
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 15px;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
  background: rgba(31, 90, 72, 0.08);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  padding: 8px 12px;
  font: inherit;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid var(--primary);
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

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

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

.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
}

.btn-secondary {
  color: var(--primary);
  background: transparent;
}

.section {
  padding: 84px 0;
}

.section-muted {
  background: rgba(239, 231, 216, 0.55);
}

.hero {
  padding: 96px 0 84px;
}

.hero-grid,
.split-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 56px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--bronze);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.16;
  letter-spacing: 0;
}

h1 {
  max-width: 760px;
  font-size: clamp(38px, 6vw, 68px);
}

h2 {
  font-size: clamp(28px, 4vw, 42px);
}

h3 {
  font-size: 22px;
}

.lead {
  max-width: 680px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 19px;
}

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

.visual-panel {
  position: relative;
  min-height: 420px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(31, 90, 72, 0.9), rgba(32, 35, 31, 0.92)),
    radial-gradient(circle at 20% 20%, rgba(168, 111, 61, 0.35), transparent 32%);
  color: #fff;
  box-shadow: var(--shadow);
}

.visual-panel::before {
  content: "";
  position: absolute;
  inset: 28px;
  border: 1px solid rgba(255, 255, 255, 0.22);
}

.visual-content {
  position: relative;
  z-index: 1;
  display: grid;
  height: 100%;
  min-height: 420px;
  align-content: end;
  padding: 40px;
}

.visual-content p {
  margin: 12px 0 0;
  color: rgba(255, 255, 255, 0.72);
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 32px;
}

.metric,
.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 12px 32px rgba(32, 35, 31, 0.05);
}

.metric {
  padding: 20px;
}

.metric strong {
  display: block;
  color: var(--primary);
  font-size: 28px;
  line-height: 1;
}

.metric span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 34px;
}

.section-head p {
  max-width: 520px;
  margin: 0;
  color: var(--muted);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.card {
  padding: 28px;
}

.card-kicker {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--bronze);
  font-size: 14px;
  font-weight: 700;
}

.card p,
.text-muted {
  color: var(--muted);
}

.card p {
  margin: 14px 0 0;
}

.list {
  display: grid;
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.list li {
  padding-left: 18px;
  border-left: 2px solid var(--bronze);
  color: var(--muted);
}

.page-hero {
  padding: 76px 0 56px;
  border-bottom: 1px solid var(--border);
}

.page-hero p {
  max-width: 720px;
}

.cta {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--primary);
  color: #fff;
  padding: 44px;
}

.cta p {
  color: rgba(255, 255, 255, 0.76);
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 24px;
  align-items: start;
}

.form {
  display: grid;
  gap: 16px;
}

.field {
  display: grid;
  gap: 8px;
}

label {
  font-weight: 700;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  padding: 13px 14px;
  font: inherit;
}

textarea {
  min-height: 140px;
  resize: vertical;
}

pre {
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0;
  color: var(--ink);
  font: 14px/1.7 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

.file-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.file-actions a {
  color: var(--primary);
  font-weight: 700;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 34px 0;
  color: var(--muted);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

@media (max-width: 860px) {
  .nav {
    min-height: 64px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    top: 64px;
    left: 20px;
    right: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    padding: 10px;
    box-shadow: var(--shadow);
  }

  .nav-links.open {
    display: flex;
  }

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

  .grid-3,
  .grid-2,
  .metric-row {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 58px 0;
  }

  .hero {
    padding: 68px 0 58px;
  }

  .section-head,
  .footer-inner {
    display: grid;
  }
}