:root {
  color-scheme: light;
  --ink: #172026;
  --muted: #5b6873;
  --line: #d9e2e8;
  --paper: #f7fafb;
  --white: #ffffff;
  --green: #1f8a70;
  --blue: #276fbf;
  --amber: #c7781a;
  --shadow: 0 16px 40px rgba(23, 32, 38, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family:
    Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial,
    sans-serif;
  color: var(--ink);
  background: var(--paper);
}

.top-strip {
  padding: 8px clamp(18px, 4vw, 56px);
  color: #fff;
  font-size: 13px;
  text-align: center;
  background: var(--ink);
}

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: 24px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(217, 226, 232, 0.8);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 220px;
}

.brand-mark {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  color: #fff;
  font-weight: 800;
  background: var(--green);
  border-radius: 8px;
}

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

.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(14px, 2.2vw, 28px);
  color: var(--muted);
  font-size: 14px;
}

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

.nav a {
  white-space: nowrap;
}

.hero {
  position: relative;
  min-height: min(720px, calc(100vh - 68px));
  overflow: hidden;
  display: grid;
  align-items: center;
  padding: clamp(70px, 12vh, 120px) clamp(18px, 4vw, 56px);
}

.hero-image,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(247, 250, 251, 0.97) 0%, rgba(247, 250, 251, 0.82) 42%, rgba(247, 250, 251, 0.15) 100%),
    linear-gradient(0deg, rgba(247, 250, 251, 0.8) 0%, rgba(247, 250, 251, 0) 30%);
}

.hero-content {
  position: relative;
  max-width: 760px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

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

h1 {
  max-width: 720px;
  margin-bottom: 22px;
  font-size: clamp(38px, 6vw, 68px);
  line-height: 1.04;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.12;
}

h3 {
  margin-bottom: 10px;
  font-size: 20px;
}

p {
  color: var(--muted);
  line-height: 1.72;
}

.hero-copy {
  max-width: 660px;
  font-size: 18px;
}

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

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 700;
}

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

.button.secondary {
  background: rgba(255, 255, 255, 0.72);
}

.section {
  padding: clamp(54px, 8vw, 92px) clamp(18px, 4vw, 56px);
}

.intro {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  padding-top: 0;
  background: var(--line);
}

.metric {
  padding: 30px;
  background: var(--white);
}

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

.metric strong {
  margin-bottom: 8px;
  font-size: 22px;
}

.metric span {
  color: var(--muted);
  line-height: 1.6;
}

.section-heading {
  max-width: 780px;
  margin: 0 auto 34px;
  text-align: center;
}

.section-heading.align-left {
  margin-right: 0;
  margin-left: 0;
  text-align: left;
}

.business {
  background: #fff;
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.business-grid article {
  min-height: 220px;
  padding: 26px;
  color: #fff;
  background: var(--ink);
  border-radius: 8px;
}

.business-grid article:nth-child(2) {
  background: var(--green);
}

.business-grid article:nth-child(3) {
  background: var(--blue);
}

.business-grid article:nth-child(4) {
  background: var(--amber);
}

.business-grid strong {
  display: block;
  margin-bottom: 14px;
  font-size: 22px;
}

.business-grid p {
  color: rgba(255, 255, 255, 0.82);
}

.product-grid,
.entity-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.product-card,
.entity-card {
  min-height: 230px;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 8px 22px rgba(23, 32, 38, 0.04);
}

.icon {
  display: grid;
  width: 38px;
  height: 38px;
  margin-bottom: 18px;
  place-items: center;
  color: var(--green);
  font-weight: 800;
  background: #e5f4ef;
  border-radius: 8px;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(28px, 6vw, 76px);
  align-items: start;
  background: var(--white);
}

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

.capability-list > div {
  padding-top: 18px;
  border-top: 3px solid var(--line);
}

.capability-list > div:nth-child(1) {
  border-color: var(--green);
}

.capability-list > div:nth-child(2) {
  border-color: var(--blue);
}

.capability-list > div:nth-child(3) {
  border-color: var(--amber);
}

.compliance {
  background: #edf5f7;
}

.vision {
  background:
    linear-gradient(90deg, rgba(23, 32, 38, 0.92), rgba(23, 32, 38, 0.68)),
    url("assets/hero-operations.png") center / cover;
}

.vision-panel {
  max-width: 760px;
  color: #fff;
}

.vision-panel .eyebrow {
  color: #90d4c1;
}

.vision-panel p {
  color: rgba(255, 255, 255, 0.78);
}

.check-list {
  display: grid;
  max-width: 980px;
  margin: 0;
  padding: 0;
  gap: 12px;
  list-style: none;
}

.check-list li {
  position: relative;
  padding: 18px 18px 18px 48px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  line-height: 1.65;
}

.check-list li::before {
  position: absolute;
  left: 18px;
  top: 20px;
  width: 16px;
  height: 16px;
  content: "";
  background: var(--green);
  border-radius: 4px;
}

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

.entity-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: 980px;
  margin: 0 auto;
}

.entity-card {
  min-height: auto;
}

dl,
dd {
  margin: 0;
}

.entity-card dl {
  display: grid;
  gap: 14px;
}

.entity-card dl div {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 12px;
}

dt {
  color: var(--muted);
}

dd {
  font-weight: 700;
  word-break: break-word;
}

.contact {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  background: var(--ink);
  color: #fff;
}

.contact p {
  max-width: 680px;
  color: rgba(255, 255, 255, 0.74);
}

.contact .eyebrow {
  color: #90d4c1;
}

.contact .button.primary {
  flex: 0 0 auto;
  background: #fff;
  border-color: #fff;
  color: var(--ink);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px 26px;
  padding: 24px clamp(18px, 4vw, 56px);
  color: var(--muted);
  background: #fff;
  border-top: 1px solid var(--line);
}

@media (max-width: 920px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .intro,
  .business-grid,
  .product-grid,
  .entity-grid,
  .split {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 720px;
    align-items: end;
  }

  .hero-overlay {
    background: linear-gradient(0deg, rgba(247, 250, 251, 0.98) 0%, rgba(247, 250, 251, 0.86) 58%, rgba(247, 250, 251, 0.2) 100%);
  }

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

@media (max-width: 560px) {
  .brand {
    min-width: 0;
  }

  .hero {
    min-height: 680px;
  }

  h1 {
    font-size: 36px;
  }

  .hero-copy {
    font-size: 16px;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

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

  .entity-card dl div {
    grid-template-columns: 1fr;
  }
}