:root {
  --ink: #17211c;
  --muted: #5c6761;
  --paper: #f7f5ef;
  --surface: #ffffff;
  --line: #d9ded7;
  --green: #12372a;
  --green-2: #1e6a50;
  --copper: #a85f2b;
  --clay: #d56f45;
  --blue: #2f6f95;
  --shadow: 0 24px 70px rgba(18, 55, 42, 0.14);
  --radius: 8px;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
}

body.nav-open {
  overflow: hidden;
}

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

img,
svg {
  display: block;
}

button {
  font: inherit;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 12px;
  z-index: 100;
  transform: translateY(-140%);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--green);
  padding: 10px 14px;
  box-shadow: var(--shadow);
}

.skip-link:focus {
  transform: translateY(0);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 4vw, 56px);
  color: #fff;
  transition: background 180ms ease, color 180ms ease, box-shadow 180ms ease, padding 180ms ease;
}

.site-header.is-scrolled,
.site-header.nav-active {
  background: rgba(255, 255, 255, 0.95);
  color: var(--ink);
  box-shadow: 0 10px 32px rgba(23, 33, 28, 0.08);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  font-weight: 700;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-size: 14px;
  letter-spacing: 0;
}

.brand-text {
  font-size: 17px;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 28px);
  font-size: 15px;
}

.site-nav a {
  opacity: 0.9;
}

.site-nav a:hover,
.site-nav a:focus {
  opacity: 1;
}

.nav-cta {
  border: 1px solid currentColor;
  border-radius: 999px;
  padding: 10px 16px;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid currentColor;
  border-radius: 50%;
  background: transparent;
  color: inherit;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span:not(.sr-only) {
  width: 17px;
  height: 2px;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: 94vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  color: #fff;
  isolation: isolate;
}

.hero-media,
.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.hero-media {
  background-image: url("https://images.unsplash.com/photo-1494412685616-a5d310fbb07d?auto=format&fit=crop&w=1800&q=84");
  background-size: cover;
  background-position: center;
  transform: scale(1.02);
}

.hero-overlay {
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(10, 25, 20, 0.88), rgba(10, 25, 20, 0.48) 56%, rgba(10, 25, 20, 0.18)),
    linear-gradient(180deg, rgba(10, 25, 20, 0.1), rgba(10, 25, 20, 0.66));
}

.hero-content {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  padding: 150px 0 42px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--clay);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #f2b889;
}

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

h1 {
  max-width: 900px;
  margin: 0;
  font-size: 84px;
  line-height: 1.02;
  letter-spacing: 0;
}

.hero-lede {
  max-width: 710px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 22px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 34px 0 44px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border: 1px solid var(--green);
  border-radius: 999px;
  padding: 12px 20px;
  background: var(--green);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
  transition: transform 160ms ease, background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.button:hover,
.button:focus {
  transform: translateY(-1px);
  background: var(--green-2);
  border-color: var(--green-2);
}

.button.ghost {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.72);
}

.button.ghost:hover,
.button.ghost:focus {
  background: #fff;
  border-color: #fff;
  color: var(--green);
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.22);
}

.hero-facts div {
  padding: 22px;
  background: rgba(11, 31, 24, 0.46);
  backdrop-filter: blur(18px);
}

.hero-facts dt {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 800;
}

.hero-facts dd {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.6;
}

.section {
  padding: clamp(68px, 9vw, 112px) 0;
}

.section-inner {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.8fr);
  gap: clamp(24px, 6vw, 80px);
  align-items: end;
  margin-bottom: 38px;
}

.section-head.narrow {
  display: block;
  max-width: 720px;
}

h2 {
  margin: 0;
  font-size: 48px;
  line-height: 1.16;
  letter-spacing: 0;
}

h3 {
  margin: 0;
  font-size: 20px;
  line-height: 1.35;
  letter-spacing: 0;
}

.section-head p,
.intro-grid p,
.capability-copy p,
.contact-layout p,
.compliance-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.8;
}

.intro-section {
  background: var(--surface);
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(280px, 0.95fr);
  gap: clamp(24px, 6vw, 80px);
  align-items: start;
}

.scope-layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.8fr) minmax(320px, 1.2fr);
  gap: 28px;
}

.scope-feature,
.scope-list article,
.capability-panel article,
.contact-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 16px 44px rgba(23, 33, 28, 0.07);
}

.scope-feature {
  overflow: hidden;
}

.scope-feature img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.scope-feature div {
  padding: 24px;
}

.scope-feature p,
.scope-list p,
.capability-panel p,
.process-list p {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.75;
}

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

.scope-list article {
  padding: 24px;
}

.icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  border-radius: 50%;
  background: #e9f3ef;
  color: var(--green-2);
}

.icon svg {
  width: 23px;
  height: 23px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.capability-section {
  background: #eff4f1;
}

.capability-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.92fr) minmax(320px, 1.08fr);
  gap: clamp(28px, 7vw, 90px);
  align-items: center;
}

.capability-copy {
  padding-right: clamp(0px, 3vw, 48px);
}

.capability-panel {
  display: grid;
  gap: 16px;
}

.capability-panel article {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 4px 18px;
  padding: 22px;
}

.capability-panel strong {
  grid-row: span 2;
  color: var(--copper);
  font-size: 26px;
  line-height: 1;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.process-list li {
  min-height: 250px;
  padding: 28px;
  background: var(--surface);
}

.process-list span {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 26px;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  font-weight: 800;
}

.compliance-section {
  background: var(--green);
  color: #fff;
}

.compliance-section .section-kicker {
  color: #f2b889;
}

.compliance-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.75fr) minmax(320px, 1.15fr);
  gap: clamp(26px, 6vw, 90px);
}

.compliance-copy {
  display: grid;
  gap: 18px;
}

.compliance-copy p {
  color: rgba(255, 255, 255, 0.84);
}

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

.contact-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(320px, 0.7fr);
  gap: clamp(28px, 7vw, 96px);
  align-items: start;
}

.contact-layout p {
  margin-top: 20px;
  max-width: 680px;
}

.contact-card {
  display: grid;
  gap: 18px;
  padding: 28px;
  font-style: normal;
}

.contact-card div {
  display: grid;
  gap: 6px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.contact-card span {
  color: var(--muted);
  font-size: 14px;
}

.contact-card strong {
  font-size: 18px;
  line-height: 1.5;
}

.contact-copy {
  width: 100%;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--surface);
  color: var(--muted);
}

.footer-inner {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  font-size: 14px;
}

.footer-inner p {
  margin: 0;
}

@media (max-width: 920px) {
  .site-header {
    padding: 14px 20px;
  }

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

  .site-nav {
    position: fixed;
    inset: 73px 14px auto;
    display: grid;
    gap: 0;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--ink);
    box-shadow: var(--shadow);
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity 160ms ease, transform 160ms ease;
  }

  .site-header.nav-active .site-nav {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .site-nav a {
    padding: 14px 12px;
    border-bottom: 1px solid var(--line);
  }

  .site-nav a:last-child {
    border-bottom: 0;
  }

  .nav-cta {
    border: 0;
    border-radius: 0;
  }

  .hero {
    min-height: 92vh;
  }

  .hero-content {
    padding-top: 118px;
  }

  h1 {
    font-size: 62px;
  }

  h2 {
    font-size: 40px;
  }

  .hero-facts,
  .section-head,
  .intro-grid,
  .scope-layout,
  .capability-grid,
  .compliance-grid,
  .contact-layout {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  .brand-text {
    max-width: 220px;
    white-space: normal;
    line-height: 1.2;
    font-size: 15px;
  }

  h1 {
    font-size: 44px;
  }

  h2 {
    font-size: 32px;
  }

  .hero-lede {
    font-size: 17px;
  }

  .hero-actions {
    display: grid;
  }

  .hero-facts,
  .scope-list,
  .process-list {
    grid-template-columns: 1fr;
  }

  .hero-facts div,
  .scope-list article,
  .process-list li {
    padding: 20px;
  }

  .process-list li {
    min-height: auto;
  }

  .footer-inner {
    flex-direction: column;
  }
}