:root {
  --bg: #f7f8f5;
  --panel: #ffffff;
  --ink: #17201d;
  --muted: #65716c;
  --line: #dfe5df;
  --green: #0e6b58;
  --green-deep: #084c40;
  --gold: #b88b42;
  --soft: #eaf0eb;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

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

button {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid rgba(223, 229, 223, 0.82);
  background: rgba(247, 248, 245, 0.92);
  backdrop-filter: blur(18px);
}

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

.brand-logo-wrap {
  width: 66px;
  height: 44px;
  flex: 0 0 auto;
  border-radius: 8px;
  overflow: hidden;
  background: #10130f;
}

.brand-logo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 43%;
}

.brand strong,
.brand small {
  display: block;
  line-height: 1.2;
}

.brand strong {
  font-size: 16px;
}

.brand small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: #33413d;
  font-size: 15px;
}

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

.site-nav a:hover {
  border-color: var(--gold);
}

.menu-button {
  display: none;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.96fr) minmax(360px, 1.04fr);
  align-items: center;
  gap: clamp(28px, 5vw, 70px);
  min-height: calc(100vh - 82px);
  padding: clamp(38px, 6vw, 86px) clamp(18px, 5vw, 72px) 44px;
}

.hero-copy {
  max-width: 680px;
}

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

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

h1 {
  margin-bottom: 24px;
  font-size: clamp(42px, 5.5vw, 76px);
  line-height: 1.06;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(30px, 3.3vw, 48px);
  line-height: 1.16;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: 22px;
  line-height: 1.28;
}

.hero-text {
  max-width: 620px;
  margin-bottom: 34px;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.78;
}

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

.primary-link,
.secondary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 8px;
  font-weight: 700;
}

.primary-link {
  background: var(--green-deep);
  color: #fff;
}

.secondary-link {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
  color: var(--ink);
}

.hero-visual {
  position: relative;
  margin: 0;
  min-height: 430px;
  overflow: hidden;
  border-radius: 8px;
  background: var(--soft);
  box-shadow: 0 28px 70px rgba(20, 40, 34, 0.16);
}

.hero-visual img {
  width: 100%;
  height: 100%;
  min-height: 430px;
  object-fit: cover;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-block: 1px solid var(--line);
  background: #fff;
}

.trust-strip span {
  display: grid;
  place-items: center;
  min-height: 86px;
  padding: 16px;
  border-right: 1px solid var(--line);
  color: #31413c;
  font-weight: 700;
  text-align: center;
}

.trust-strip span:last-child {
  border-right: 0;
}

.section {
  padding: clamp(62px, 8vw, 112px) clamp(18px, 5vw, 72px);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(320px, 1fr);
  gap: 32px;
  align-items: end;
  margin-bottom: 38px;
}

.section-heading .eyebrow {
  margin-bottom: 0;
}

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

.service-card {
  min-height: 330px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.service-number {
  display: block;
  margin-bottom: 54px;
  color: var(--gold);
  font-size: 15px;
  font-weight: 800;
}

.service-card p,
.process-list p,
.insight-grid p,
.contact-section p {
  color: var(--muted);
  line-height: 1.72;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(360px, 1.18fr);
  gap: 42px;
  background: var(--green-deep);
  color: #fff;
}

.split-section .eyebrow,
.split-section p {
  color: rgba(255, 255, 255, 0.72);
}

.process-list {
  display: grid;
  gap: 14px;
}

.process-list div {
  padding: 22px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.process-list strong {
  display: block;
  margin-bottom: 8px;
  font-size: 20px;
}

.market-section {
  background: #fff;
}

.insight-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.insight-grid div {
  padding: 24px;
  border-left: 3px solid var(--green);
  background: var(--bg);
}

.advantage-section {
  padding-top: 82px;
}

.advantage-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.advantage-row span {
  display: grid;
  place-items: center;
  min-height: 92px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: #293934;
  font-weight: 800;
  text-align: center;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 0.8fr);
  align-items: start;
  gap: 32px;
  margin: 0 clamp(18px, 5vw, 72px) clamp(48px, 6vw, 78px);
  padding: clamp(34px, 5vw, 58px);
  border-radius: 8px;
  background: #19231f;
  color: #fff;
}

.contact-section > div:first-child {
  max-width: 720px;
}

.contact-section .eyebrow {
  color: var(--gold);
}

.contact-section p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.72);
}

.contact-card {
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
}

.contact-card img {
  width: 150px;
  height: 92px;
  margin-bottom: 20px;
  border-radius: 8px;
  object-fit: cover;
  object-position: 50% 43%;
  background: #0c100e;
}

.contact-card dl {
  display: grid;
  gap: 14px;
  margin: 0 0 22px;
}

.contact-card div {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 14px;
}

.contact-card dt {
  color: rgba(255, 255, 255, 0.54);
  font-size: 14px;
}

.contact-card dd {
  margin: 0;
  color: #fff;
  line-height: 1.55;
}

.contact-card a {
  overflow-wrap: anywhere;
}

.contact-section .contact-card .primary-link {
  width: 100%;
  background: #fff;
  color: #19231f;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 26px clamp(18px, 5vw, 72px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 920px) {
  .hero,
  .section-heading,
  .split-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual,
  .hero-visual img {
    min-height: 340px;
  }

  .trust-strip,
  .service-grid,
  .insight-grid,
  .advantage-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-section {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .site-header {
    align-items: flex-start;
    flex-wrap: wrap;
    padding: 14px 16px;
  }

  .brand {
    max-width: calc(100% - 74px);
  }

  .brand-logo-wrap {
    width: 58px;
    height: 40px;
  }

  .menu-button {
    display: inline-flex;
    align-items: center;
  }

  .site-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding-top: 8px;
  }

  .site-header.nav-open .site-nav {
    display: flex;
  }

  .site-nav a {
    width: 100%;
    padding: 10px 0;
  }

  .brand strong {
    font-size: 14px;
  }

  .brand small {
    font-size: 11px;
  }

  .hero {
    padding-top: 34px;
  }

  h1 {
    font-size: clamp(36px, 12vw, 48px);
  }

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

  .hero-actions,
  .primary-link,
  .secondary-link {
    width: 100%;
  }

  .contact-card {
    width: 100%;
    padding: 18px;
  }

  .contact-card div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .trust-strip,
  .service-grid,
  .insight-grid,
  .advantage-row {
    grid-template-columns: 1fr;
  }

  .trust-strip span {
    min-height: 64px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

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

  .service-number {
    margin-bottom: 34px;
  }

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