:root {
  color-scheme: light;
  --ink: #102728;
  --muted: #667274;
  --line: #dce5e2;
  --paper: #f7f8f5;
  --white: #ffffff;
  --deep: #164142;
  --teal: #438b84;
  --coral: #d98270;
  --gold: #c79638;
  --shadow: 0 24px 70px rgba(19, 45, 46, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font-family:
    "PingFang SC",
    "Microsoft YaHei",
    "Noto Sans CJK SC",
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  letter-spacing: 0;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  width: 100%;
  min-height: 72px;
  padding: 14px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid rgba(220, 229, 226, 0.78);
  background: rgba(247, 248, 245, 0.9);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 174px;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  background: var(--deep);
  color: var(--white);
  font-size: 22px;
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 17px;
  line-height: 1.1;
}

.brand small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 10px;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(18px, 4vw, 44px);
  color: #314447;
  font-size: 15px;
}

.nav-links a {
  padding: 10px 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  align-items: center;
  gap: clamp(28px, 5vw, 74px);
  min-height: calc(100svh - 72px);
  padding: clamp(48px, 7vw, 96px) clamp(20px, 5vw, 72px) clamp(34px, 6vw, 70px);
}

.hero-copy {
  max-width: 700px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--teal);
  font-size: 14px;
  font-weight: 800;
}

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

h1 {
  max-width: 680px;
  margin-bottom: 24px;
  font-size: clamp(42px, 6.1vw, 82px);
  line-height: 1.04;
  font-weight: 900;
}

.lead {
  max-width: 620px;
  margin-bottom: 34px;
  color: #3d5153;
  font-size: clamp(17px, 1.55vw, 21px);
  line-height: 1.85;
}

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

.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 800;
}

.primary-action {
  background: var(--deep);
  color: var(--white);
  box-shadow: 0 14px 28px rgba(22, 65, 66, 0.2);
}

.secondary-action {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.68);
  color: #254143;
}

.hero-media {
  position: relative;
  align-self: stretch;
  min-height: 430px;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.hero-media::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(90deg, rgba(247, 248, 245, 0.1), rgba(247, 248, 245, 0));
  pointer-events: none;
}

.hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  padding: 0 clamp(20px, 5vw, 72px) clamp(56px, 7vw, 92px);
}

.stats div {
  min-height: 132px;
  padding: 26px;
  background: var(--white);
  border: 1px solid var(--line);
}

.stats strong {
  display: block;
  margin-bottom: 10px;
  color: var(--deep);
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1;
}

.stats span {
  color: var(--muted);
  font-size: 15px;
}

.section {
  padding: clamp(60px, 8vw, 112px) clamp(20px, 5vw, 72px);
}

.section-heading {
  max-width: 800px;
  margin-bottom: 34px;
}

.section-heading h2,
.contact h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.14;
}

.section-heading p,
.contact p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.85;
}

.intro {
  background: var(--white);
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.proof-grid article,
.service-list article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
}

.proof-grid article {
  min-height: 260px;
  padding: 30px;
}

.proof-grid span {
  display: inline-flex;
  margin-bottom: 34px;
  color: var(--coral);
  font-weight: 900;
}

.proof-grid h3,
.service-list h3 {
  margin-bottom: 12px;
  font-size: 21px;
}

.proof-grid p,
.service-list p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.service-band {
  background: #edf3f0;
}

.service-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.service-list article {
  min-height: 220px;
  padding: 26px;
  background: rgba(255, 255, 255, 0.72);
}

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

.process .eyebrow {
  color: #9dd0ca;
}

.process .section-heading p {
  color: rgba(255, 255, 255, 0.72);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.timeline li {
  min-height: 188px;
  padding: 28px;
  background: rgba(255, 255, 255, 0.06);
}

.timeline strong,
.timeline span {
  display: block;
}

.timeline strong {
  margin-bottom: 18px;
  font-size: 21px;
}

.timeline span {
  color: rgba(255, 255, 255, 0.74);
  line-height: 1.8;
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.75fr);
  gap: clamp(24px, 5vw, 76px);
  align-items: start;
  padding: clamp(62px, 8vw, 112px) clamp(20px, 5vw, 72px);
  background: var(--white);
}

address {
  margin: 0;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f7f8f5;
  color: #344c4e;
  font-size: 18px;
  font-style: normal;
  line-height: 1.8;
}

address span {
  display: block;
  margin-bottom: 14px;
  color: var(--gold);
  font-size: 14px;
  font-weight: 900;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding: 24px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  background: #f7f8f5;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 980px) {
  .hero,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-media {
    min-height: 360px;
  }

  .stats,
  .proof-grid,
  .service-list,
  .timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .nav-links {
    width: 100%;
    justify-content: space-between;
    gap: 10px;
    font-size: 14px;
  }

  .hero {
    padding-top: 36px;
  }

  h1 {
    font-size: 40px;
  }

  .lead {
    font-size: 16px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .primary-action,
  .secondary-action {
    width: 100%;
  }

  .hero-media {
    min-height: 280px;
  }

  .stats,
  .proof-grid,
  .service-list,
  .timeline {
    grid-template-columns: 1fr;
  }

  .stats div,
  .proof-grid article,
  .service-list article,
  .timeline li {
    min-height: auto;
  }

  address {
    font-size: 16px;
  }
}