:root {
  --ink: #172326;
  --muted: #5d6c70;
  --paper: #fbfaf5;
  --white: #ffffff;
  --soft: #eef5f0;
  --line: #d9e2de;
  --green: #0d665f;
  --deep: #073d39;
  --gold: #c4933b;
  --coral: #c86c55;
  --shadow: 0 24px 70px rgba(20, 38, 38, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px clamp(18px, 5vw, 72px);
  background: rgba(251, 250, 245, 0.88);
  border-bottom: 1px solid rgba(217, 226, 222, 0.8);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}

.brand-mark {
  display: inline-grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: var(--white);
  background: var(--green);
  border-radius: 50%;
}

.nav {
  display: flex;
  gap: clamp(14px, 3vw, 34px);
  color: var(--muted);
  font-size: 15px;
}

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.72fr);
  gap: clamp(30px, 6vw, 88px);
  align-items: center;
  min-height: calc(100vh - 72px);
  padding: clamp(52px, 8vw, 110px) clamp(20px, 6vw, 96px);
  background:
    linear-gradient(135deg, #fbfaf5 0%, #eef5f0 100%);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 860px;
  margin-bottom: 22px;
  font-size: clamp(42px, 7vw, 82px);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 24px;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.18;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
  line-height: 1.35;
}

.hero-text {
  max-width: 760px;
  color: var(--muted);
  font-size: clamp(17px, 1.7vw, 21px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 11px 20px;
  border-radius: 6px;
  font-weight: 800;
}

.button.primary {
  color: var(--white);
  background: var(--green);
}

.button.secondary {
  color: var(--green);
  border: 1px solid var(--green);
}

.hero-panel {
  display: grid;
  gap: 1px;
  overflow: hidden;
  background: var(--line);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero-panel div {
  padding: 30px;
  background: rgba(255, 255, 255, 0.86);
}

.hero-panel span {
  display: block;
  margin-bottom: 18px;
  color: var(--coral);
  font-weight: 900;
}

.hero-panel strong {
  display: block;
  margin-bottom: 8px;
  font-size: 24px;
}

.hero-panel p,
.about-grid p,
.service-list p,
.contact-card p {
  color: var(--muted);
}

.section {
  padding: clamp(64px, 9vw, 116px) clamp(20px, 6vw, 96px);
}

.section-heading {
  max-width: 760px;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(26px, 5vw, 74px);
  max-width: 1050px;
  font-size: 18px;
}

.ability-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  max-width: 1120px;
  margin-top: 42px;
  background: var(--line);
  border: 1px solid var(--line);
}

.ability-grid article {
  min-height: 142px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.82);
}

.ability-grid strong,
.ability-grid span {
  display: block;
}

.ability-grid strong {
  margin-bottom: 8px;
  font-size: 20px;
}

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

.split-section {
  background: var(--deep);
  color: var(--white);
}

.split-section .section-heading,
.split-section p {
  color: var(--white);
}

.split-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.72fr);
  gap: clamp(28px, 5vw, 76px);
  align-items: start;
  max-width: 1160px;
}

.split-grid > div:first-child {
  color: rgba(255, 255, 255, 0.78);
  font-size: 18px;
}

.quote-panel {
  padding: clamp(26px, 4vw, 42px);
  color: var(--white);
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.22);
}

.quote-panel p {
  margin-bottom: 18px;
  color: var(--white);
  font-size: clamp(22px, 2.7vw, 34px);
  font-weight: 800;
  line-height: 1.35;
}

.quote-panel p:last-child {
  margin-bottom: 0;
  color: #f6d69b;
}

.revolution-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  max-width: 1160px;
  background: var(--line);
  border: 1px solid var(--line);
}

.revolution-list article {
  min-height: 260px;
  padding: 30px;
  background: rgba(255, 255, 255, 0.84);
}

.revolution-list span {
  display: inline-block;
  margin-bottom: 26px;
  color: var(--coral);
  font-weight: 900;
}

.revolution-list p,
.impact-grid li {
  color: var(--muted);
}

.loop-section {
  background: var(--soft);
}

.loop-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  max-width: 1160px;
  background: var(--line);
  border: 1px solid var(--line);
}

.loop-grid article {
  min-height: 310px;
  padding: 30px;
  background: rgba(255, 255, 255, 0.86);
}

.loop-grid span {
  display: inline-block;
  margin-bottom: 24px;
  color: var(--gold);
  font-weight: 900;
}

.loop-grid p,
.ceo-copy p,
.ceo-card li {
  color: var(--muted);
}

.loop-flow {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  max-width: 1120px;
  margin-top: 28px;
}

.loop-flow span {
  padding: 9px 13px;
  color: var(--deep);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 6px;
  font-weight: 800;
}

.ceo-section {
  background: var(--paper);
}

.ceo-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.62fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: stretch;
  max-width: 1120px;
}

.ceo-copy {
  padding: clamp(26px, 4vw, 40px);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
}

.ceo-copy p {
  margin-bottom: 18px;
  font-size: 18px;
}

.ceo-copy p:last-child {
  margin-bottom: 0;
}

.ceo-card {
  padding: clamp(26px, 4vw, 40px);
  color: var(--white);
  background: var(--green);
  box-shadow: var(--shadow);
}

.ceo-card h3 {
  color: var(--white);
}

.ceo-card ul {
  padding-left: 20px;
  margin: 18px 0 0;
}

.ceo-card li {
  color: rgba(255, 255, 255, 0.86);
}

.ceo-card li + li {
  margin-top: 9px;
}

.impact-section {
  background: var(--paper);
}

.impact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  max-width: 1040px;
  background: var(--line);
  border: 1px solid var(--line);
}

.impact-grid article {
  padding: 30px;
  background: rgba(255, 255, 255, 0.86);
}

.impact-grid ul {
  padding-left: 20px;
  margin: 16px 0 0;
}

.impact-grid li + li {
  margin-top: 8px;
}

.services-section {
  background: var(--soft);
}

.service-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.service-list article {
  min-height: 220px;
  padding: 30px;
  background: rgba(255, 255, 255, 0.82);
}

.contact-section {
  background: var(--deep);
}

.contact-card {
  max-width: 900px;
  color: var(--white);
}

.contact-card p {
  max-width: 680px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 18px;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.contact-links a,
.contact-links span {
  padding: 10px 14px;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.36);
  border-radius: 999px;
}

.site-footer {
  padding: 28px 20px;
  color: var(--muted);
  text-align: center;
  border-top: 1px solid var(--line);
}

.site-footer p {
  margin: 0;
}

@media (max-width: 860px) {
  .site-header {
    align-items: flex-start;
    gap: 14px;
  }

  .nav {
    display: none;
  }

  .hero,
  .about-grid,
  .service-list,
  .ability-grid,
  .split-grid,
  .revolution-list,
  .loop-grid,
  .ceo-grid,
  .impact-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }
}

@media (max-width: 520px) {
  .button,
  .contact-links a,
  .contact-links span {
    width: 100%;
  }

  h1 {
    font-size: 40px;
  }
}