:root {
  color-scheme: light;
  --ink: #1f2933;
  --muted: #5b6570;
  --paper: #f7f8f5;
  --surface: #ffffff;
  --line: #d8ddd5;
  --band: #edf2ec;
  --green: #16634f;
  --green-dark: #0d3f35;
  --gold: #a86f24;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px clamp(18px, 5vw, 64px);
  border-bottom: 1px solid rgba(216, 221, 213, 0.9);
  background: rgba(247, 248, 245, 0.94);
  backdrop-filter: blur(10px);
}

.brand {
  font-size: 18px;
  font-weight: 800;
  white-space: nowrap;
}

nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 14px;
  color: var(--muted);
  font-size: 14px;
}

nav a:hover {
  color: var(--green-dark);
}

.hero {
  min-height: 68vh;
  display: grid;
  align-items: center;
  padding: 72px clamp(20px, 7vw, 92px) 64px;
  color: #fff;
  background:
    linear-gradient(90deg, rgba(13, 63, 53, 0.9), rgba(22, 99, 79, 0.74)),
    linear-gradient(135deg, #0d3f35 0%, #16634f 55%, #a86f24 100%);
}

.hero-inner {
  max-width: 900px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #f3c97b;
}

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

h1 {
  margin-bottom: 18px;
  font-size: clamp(48px, 8vw, 92px);
  line-height: 1.05;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.2;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  font-size: 20px;
  line-height: 1.35;
}

.lead {
  max-width: 780px;
  color: rgba(255, 255, 255, 0.92);
  font-size: clamp(19px, 2.1vw, 26px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 6px;
  color: #fff;
  font-weight: 800;
}

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

.section {
  padding: 72px clamp(20px, 7vw, 92px);
}

.band {
  background: var(--band);
}

.section-head {
  max-width: 780px;
  margin-bottom: 30px;
}

.two-column,
.three-column {
  display: grid;
  gap: 18px;
}

.two-column {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.three-column {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

article,
.faq-list details,
.contact-list,
.proof-list {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

article {
  padding: 24px;
}

article p,
.proof-list p,
.faq-list p,
.contact-section p,
.boundary p,
footer p {
  color: var(--muted);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.tag-list li {
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--green-dark);
  font-size: 14px;
  font-weight: 800;
}

.method-list {
  max-width: 980px;
  margin: 0;
  padding-left: 24px;
}

.method-list li {
  margin-bottom: 16px;
  padding-left: 4px;
}

.proof-list {
  max-width: 1000px;
  padding: 24px;
}

.proof-list p:last-child {
  margin-bottom: 0;
}

.faq-list {
  display: grid;
  gap: 12px;
  max-width: 1000px;
}

.faq-list details {
  padding: 18px 22px;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 800;
}

.faq-list p {
  margin: 12px 0 0;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: 26px;
  align-items: start;
  background: var(--green-dark);
  color: #fff;
}

.contact-section .eyebrow {
  color: #f3c97b;
}

.contact-section p {
  color: rgba(255, 255, 255, 0.84);
}

.contact-list {
  margin: 0;
  padding: 20px;
  color: var(--ink);
}

.contact-list div {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}

.contact-list div:last-child {
  border-bottom: 0;
}

.contact-list dt {
  color: var(--green-dark);
  font-weight: 800;
}

.contact-list dd {
  margin: 0;
  color: var(--muted);
}

.boundary {
  padding-top: 48px;
  padding-bottom: 48px;
}

footer {
  padding: 26px clamp(20px, 7vw, 92px);
  border-top: 1px solid var(--line);
  background: #fff;
}

footer p {
  margin-bottom: 0;
  font-size: 14px;
}

@media (max-width: 780px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    justify-content: flex-start;
  }

  .hero {
    min-height: 62vh;
  }

  .two-column,
  .three-column,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .contact-list div {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}