:root {
  color-scheme: light;
  --ink: #111815;
  --muted: #5d6863;
  --soft: #eef4f1;
  --surface: #ffffff;
  --surface-2: #f7faf8;
  --line: #dfe7e2;
  --green: #075f37;
  --green-2: #0e7a4a;
  --green-soft: #e4f2eb;
  --footer: #111917;
  --shadow: 0 18px 48px rgba(17, 24, 21, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family:
    "Avenir Next",
    "Segoe UI",
    "PingFang SC",
    "Hiragino Sans GB",
    "Microsoft YaHei",
    sans-serif;
  line-height: 1.65;
  overflow-x: hidden;
}

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

img {
  display: block;
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto;
  gap: 28px;
  align-items: center;
  padding: 18px 56px;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand {
  display: grid;
  gap: 2px;
}

.brand-title {
  color: var(--green);
  font-size: 20px;
  font-weight: 800;
  line-height: 1.2;
}

.brand-subtitle {
  color: var(--green-2);
  font-size: 12px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--green);
  font-size: 14px;
  font-weight: 760;
  white-space: nowrap;
}

.nav-links a {
  padding: 8px 0;
  border-bottom: 2px solid transparent;
}

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

.hero {
  position: relative;
}

.hero-photo {
  min-height: 600px;
  overflow: hidden;
  background: #f4f7f5;
}

.hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.88) 34%, rgba(255, 255, 255, 0.22) 66%, rgba(255, 255, 255, 0.04) 100%);
}

.hero-overlay {
  position: relative;
  z-index: 1;
  display: grid;
  align-content: center;
  min-height: 600px;
  max-width: 900px;
  padding: 72px 56px;
}

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

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

h1 {
  margin-bottom: 18px;
  font-size: clamp(44px, 5.4vw, 68px);
  line-height: 1.12;
  font-weight: 900;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

html[lang="zh-CN"] h1 {
  white-space: nowrap;
}

h2 {
  margin-bottom: 12px;
  font-size: 34px;
  line-height: 1.22;
  font-weight: 850;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  font-size: 20px;
  line-height: 1.35;
  font-weight: 850;
}

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

.hero-lede {
  margin-bottom: 28px;
  color: #38443f;
  font-size: 18px;
  line-height: 1.9;
}

.button {
  display: inline-flex;
  min-height: 48px;
  width: fit-content;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border-radius: 4px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 850;
}

.button.primary {
  background: var(--green);
  color: #fff;
  box-shadow: 0 14px 28px rgba(7, 95, 55, 0.18);
}

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

.quick-signals {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 34px 56px;
  background: #fff;
}

.quick-signals div {
  min-height: 96px;
  padding: 4px 28px;
  border-left: 1px solid var(--line);
}

.quick-signals div:first-child {
  border-left: 0;
}

.quick-signals strong,
.quick-signals span {
  display: block;
}

.quick-signals strong {
  margin-bottom: 6px;
  color: var(--green);
  font-size: 16px;
}

.quick-signals span {
  color: var(--muted);
  font-size: 13px;
}

.section {
  padding: 72px 56px;
}

.section-heading {
  max-width: 760px;
  margin: 0 auto 34px;
  text-align: center;
}

.section-heading p:last-child {
  margin-bottom: 0;
  font-size: 16px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
  max-width: 1280px;
  margin: 0 auto;
}

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

.service-card img {
  width: 100%;
  height: clamp(320px, 29vw, 420px);
  object-fit: cover;
  border-radius: 8px;
}

.service-card p {
  margin-bottom: 0;
  font-size: 15px;
}

.capability-band {
  background: var(--surface-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  max-width: 1180px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.capability-grid div {
  min-height: 210px;
  padding: 28px;
  border-left: 1px solid var(--line);
}

.capability-grid div:first-child {
  border-left: 0;
}

.capability-grid span {
  display: block;
  margin-bottom: 22px;
  color: var(--green);
  font-size: 28px;
  font-weight: 900;
}

.capability-grid strong {
  display: block;
  margin-bottom: 10px;
  font-size: 18px;
}

.capability-grid p {
  margin-bottom: 0;
  font-size: 14px;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(320px, 0.78fr) minmax(0, 1.22fr);
  gap: 48px;
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
}

.split-section img {
  width: 100%;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.split-copy p {
  font-size: 16px;
}

.check-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 22px 0 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 20px;
  color: #33413a;
  font-size: 15px;
}

.check-list li::before {
  content: "";
  position: absolute;
  top: 11px;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--green);
}

.site-footer {
  display: grid;
  grid-template-columns: 1.1fr 1.4fr;
  gap: 34px;
  padding: 42px 56px 26px;
  background: var(--footer);
  color: #fff;
}

.site-footer div {
  display: grid;
  gap: 10px;
  align-content: start;
}

.site-footer strong {
  font-size: 20px;
}

.site-footer span,
.site-footer p,
.site-footer a {
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
}

.site-footer a {
  color: #54c98b;
  font-weight: 760;
}

.site-footer a:hover {
  color: #8be4b4;
}

.site-footer nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  gap: 10px 24px;
}

.site-footer p {
  margin: 0;
}

.policy-page {
  max-width: 980px;
  margin: 0 auto;
  padding: 70px 28px 90px;
}

.page-title {
  margin-bottom: 34px;
}

.page-title h1 {
  font-size: 44px;
}

.page-title p,
.policy-content p {
  font-size: 16px;
}

.policy-content h2,
.security-grid h2 {
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 26px;
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.security-grid article {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.contact-section {
  padding: 0;
}

.contact-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 42px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-2);
}

.contact-details p {
  margin: 0 0 14px;
}

.contact-details a,
.text-link {
  color: var(--green);
  font-weight: 850;
}

@media (max-width: 1120px) {
  .site-header {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 16px 28px;
  }

  .nav-links {
    flex-wrap: wrap;
    gap: 16px 22px;
  }

  .quick-signals,
  .service-grid,
  .capability-grid,
  .split-section,
  .site-footer,
  .contact-panel {
    grid-template-columns: 1fr 1fr;
  }

  .capability-grid div:nth-child(3) {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .capability-grid div:nth-child(4) {
    border-top: 1px solid var(--line);
  }
}

@media (max-width: 720px) {
  .site-header {
    position: static;
  }

  .brand-title {
    font-size: 17px;
  }

  .nav-links {
    font-size: 13px;
    max-width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .hero-photo {
    min-height: 560px;
  }

  .hero-photo::after {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(255, 255, 255, 0.9) 46%, rgba(255, 255, 255, 0.3) 100%);
  }

  .hero-overlay {
    max-width: 100%;
    min-height: 560px;
    padding: 54px 24px;
  }

  h1 {
    font-size: clamp(22px, 7vw, 30px);
    line-height: 1.22;
  }

  h2 {
    font-size: 28px;
  }

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

  .section {
    padding: 56px 24px;
  }

  .section-heading {
    text-align: left;
  }

  .button {
    width: 100%;
    max-width: 100%;
    text-align: center;
    overflow-wrap: anywhere;
  }

  .quick-signals {
    grid-template-columns: 1fr;
    padding: 24px;
  }

  .quick-signals div {
    min-height: auto;
    padding: 18px 0;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .quick-signals div:first-child {
    border-top: 0;
  }

  .service-grid,
  .capability-grid,
  .split-section,
  .site-footer,
  .security-grid,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  .service-card img {
    height: 260px;
  }

  .capability-grid div,
  .capability-grid div:nth-child(3),
  .capability-grid div:nth-child(4) {
    min-height: auto;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .capability-grid div:first-child {
    border-top: 0;
  }

  .site-footer {
    padding: 36px 24px 24px;
  }

  .site-footer nav {
    grid-template-columns: 1fr;
  }
}