:root {
  color-scheme: light;
  --ink: #16201e;
  --muted: #5c6865;
  --forest: #0a2420;
  --forest-soft: #153a33;
  --paper: #f5f6f2;
  --white: #ffffff;
  --line: #d6dcd6;
  --accent: #d9ef5f;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
}

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

.site-header {
  position: absolute;
  z-index: 10;
  top: 0;
  left: 0;
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  padding: 22px clamp(22px, 5vw, 76px);
  color: var(--white);
  border-bottom: 1px solid rgba(255, 255, 255, 0.24);
}

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

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.72);
  font-size: 14px;
  font-weight: 700;
}

.brand-name {
  overflow: hidden;
  font-size: 16px;
  font-weight: 600;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.site-nav {
  display: flex;
  gap: clamp(20px, 3vw, 44px);
  font-size: 14px;
}

.site-nav a,
.footer-links a {
  transition: opacity 160ms ease;
}

.site-nav a:hover,
.footer-links a:hover {
  opacity: 0.68;
}

.hero {
  position: relative;
  display: flex;
  min-height: min(76svh, 780px);
  align-items: flex-end;
  overflow: hidden;
  color: var(--white);
  background: var(--forest);
}

.hero-image,
.hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
  object-position: center 48%;
}

.hero-shade {
  background: linear-gradient(90deg, rgba(3, 18, 16, 0.9) 0%, rgba(3, 18, 16, 0.55) 48%, rgba(3, 18, 16, 0.08) 100%), linear-gradient(0deg, rgba(3, 18, 16, 0.52), transparent 54%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(900px, calc(100% - 44px));
  margin: 0 clamp(22px, 8vw, 124px) clamp(66px, 10vh, 110px);
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.eyebrow {
  color: var(--accent);
}

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

h1 {
  max-width: 880px;
  margin-bottom: 18px;
  font-size: clamp(42px, 6vw, 82px);
  line-height: 1.13;
  letter-spacing: 0;
}

.hero-lead {
  max-width: 620px;
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(17px, 2vw, 22px);
}

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

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 700;
  transition: background-color 160ms ease, border-color 160ms ease;
}

.button-primary {
  color: var(--forest);
  background: var(--accent);
}

.button-primary:hover {
  background: #e7f78c;
}

.button-secondary {
  border-color: rgba(255, 255, 255, 0.58);
  color: var(--white);
}

.button-secondary:hover {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.1);
}

.hero-scroll {
  position: absolute;
  z-index: 1;
  right: clamp(22px, 5vw, 76px);
  bottom: 28px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 12px;
}

.section {
  padding: clamp(72px, 9vw, 132px) clamp(22px, 8vw, 124px);
}

.section-heading {
  display: grid;
  max-width: 1180px;
  grid-template-columns: minmax(280px, 1.15fr) minmax(260px, 0.85fr);
  gap: 24px 80px;
}

.section-heading .section-kicker {
  grid-column: 1 / -1;
}

.section-kicker {
  color: #357268;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.25;
  letter-spacing: 0;
}

.section-heading > p:last-child,
.about-detail > p,
.cooperation > p {
  color: var(--muted);
  font-size: 17px;
}

.service-list {
  display: grid;
  max-width: 1280px;
  margin-top: clamp(50px, 7vw, 88px);
  border-top: 1px solid var(--line);
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.service-item {
  min-height: 260px;
  padding: 28px 34px 34px 0;
  border-right: 1px solid var(--line);
}

.service-item + .service-item {
  padding-left: 34px;
}

.service-item:last-child {
  border-right: 0;
}

.service-number {
  color: #68817c;
  font-family: Georgia, serif;
  font-size: 14px;
}

.service-item h3 {
  margin: 48px 0 14px;
  font-size: 24px;
  letter-spacing: 0;
}

.service-item p {
  max-width: 340px;
  margin-bottom: 0;
  color: var(--muted);
}

.about {
  display: grid;
  color: var(--white);
  background: var(--forest);
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.9fr);
  gap: 52px 10vw;
}

.about .section-kicker {
  color: var(--accent);
}

.about-detail > p {
  color: rgba(255, 255, 255, 0.74);
}

.company-facts {
  margin: 46px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.company-facts div {
  display: grid;
  padding: 17px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  grid-template-columns: 100px 1fr;
  gap: 20px;
}

.company-facts dt {
  color: rgba(255, 255, 255, 0.52);
  font-size: 13px;
}

.company-facts dd {
  margin: 0;
  font-size: 14px;
}

.cooperation {
  display: grid;
  padding: clamp(64px, 8vw, 112px) clamp(22px, 8vw, 124px);
  align-items: end;
  background: var(--white);
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px 10vw;
}

.cooperation h2 {
  max-width: 700px;
}

.cooperation > p {
  margin-bottom: 6px;
}

.site-footer {
  display: flex;
  min-height: 90px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 24px clamp(22px, 5vw, 76px);
  color: rgba(255, 255, 255, 0.72);
  background: #071916;
  font-size: 12px;
}

.site-footer p {
  margin: 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px 24px;
}

.footer-links a:first-child {
  color: var(--white);
}

@media (max-width: 760px) {
  .site-header {
    padding: 16px 18px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
  }

  .brand-name {
    max-width: 180px;
    font-size: 14px;
  }

  .site-nav {
    display: none;
  }

  .hero {
    min-height: min(82svh, 700px);
  }

  .hero-shade {
    background: linear-gradient(0deg, rgba(3, 18, 16, 0.88) 0%, rgba(3, 18, 16, 0.38) 72%, rgba(3, 18, 16, 0.48) 100%);
  }

  .hero-content {
    margin: 0 22px 76px;
  }

  h1 {
    font-size: 42px;
  }

  .hero-scroll {
    right: 20px;
    bottom: 20px;
  }

  .section-heading,
  .about,
  .cooperation {
    grid-template-columns: 1fr;
  }

  .section-heading {
    gap: 20px;
  }

  .service-list {
    grid-template-columns: 1fr;
  }

  .service-item,
  .service-item + .service-item {
    min-height: auto;
    padding: 24px 0 32px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .service-item h3 {
    margin-top: 24px;
  }

  .about,
  .cooperation {
    gap: 36px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}