:root {
  --bg: #f4f7f5;
  --card: #ffffff;
  --ink: #14251e;
  --muted: #607269;
  --line: #dde8e1;
  --primary: #0f6f4f;
  --primary-dark: #093f34;
  --primary-soft: #e7f5ee;
  --accent: #d99a31;
  --accent-soft: #fff5df;
  --shadow: 0 24px 60px rgba(15, 63, 52, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.7;
  background:
    linear-gradient(90deg, rgba(15, 111, 79, 0.035) 1px, transparent 1px),
    linear-gradient(rgba(15, 111, 79, 0.035) 1px, transparent 1px),
    var(--bg);
  background-size: 28px 28px;
}

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

.wrap {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid rgba(228, 234, 242, 0.85);
  backdrop-filter: blur(16px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
}

.brand-logo {
  display: block;
  width: 44px;
  height: 44px;
  object-fit: contain;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 10px 24px rgba(9, 63, 52, 0.1);
}

.brand-text {
  font-size: 18px;
}

.nav-links {
  display: flex;
  gap: 22px;
  color: var(--muted);
  font-size: 15px;
}

.nav-links a:hover,
.nav-phone:hover {
  color: var(--primary);
}

.nav-phone {
  padding: 10px 16px;
  color: var(--primary);
  font-weight: 700;
  border: 1px solid rgba(15, 95, 143, 0.24);
  border-radius: 999px;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 110px 0 96px;
  background:
    radial-gradient(circle at 88% 18%, rgba(217, 154, 49, 0.24), transparent 28%),
    radial-gradient(circle at 8% 8%, rgba(15, 111, 79, 0.13), transparent 34%),
    linear-gradient(135deg, #edf8f0 0%, #f8fbf6 48%, #ffffff 100%);
}

.hero::before {
  position: absolute;
  inset: auto -12% -32% auto;
  width: 520px;
  height: 520px;
  content: "";
  background: rgba(15, 111, 79, 0.08);
  border-radius: 50%;
}

.hero::after {
  position: absolute;
  inset: 12% auto auto -90px;
  width: 220px;
  height: 220px;
  content: "";
  border: 34px solid rgba(217, 154, 49, 0.12);
  border-radius: 50%;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.72fr);
  gap: 56px;
  align-items: center;
}

.eyebrow,
.section-kicker {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 780px;
  margin-bottom: 22px;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.18;
  letter-spacing: -0.03em;
}

h3 {
  margin-bottom: 10px;
  font-size: 21px;
}

.hero-desc {
  max-width: 720px;
  color: var(--muted);
  font-size: 18px;
}

.trust-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.trust-list span,
.hero-card-tags span {
  padding: 8px 13px;
  color: var(--primary-dark);
  font-size: 14px;
  font-weight: 800;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(15, 111, 79, 0.16);
  border-radius: 999px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  font-weight: 800;
  border-radius: 999px;
}

.btn.primary {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  box-shadow: 0 14px 30px rgba(15, 111, 79, 0.24);
}

.btn.secondary {
  color: var(--primary-dark);
  background: #fff;
  border: 1px solid var(--line);
}

.hero-card,
.contact-card,
.clients,
.promise-cards > div {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(228, 234, 242, 0.9);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.hero-card {
  position: relative;
  padding: 32px;
  overflow: hidden;
}

.hero-card::before {
  position: absolute;
  inset: -55px -55px auto auto;
  width: 150px;
  height: 150px;
  content: "";
  background: var(--primary-soft);
  border-radius: 50%;
}

.hero-logo-wrap {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 78px;
  height: 78px;
  margin-bottom: 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 18px 42px rgba(9, 63, 52, 0.12);
}

.hero-logo-wrap img {
  width: 58px;
  height: 58px;
  object-fit: contain;
}

.card-title {
  margin-bottom: 24px;
  font-size: 22px;
  font-weight: 800;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.metrics div {
  padding: 18px 12px;
  text-align: center;
  background: #f5faf7;
  border-radius: 18px;
}

.metrics strong {
  display: block;
  color: var(--primary);
  font-size: 24px;
}

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

.hero-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.section {
  padding: 88px 0;
}

.split,
.promise-grid,
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 54px;
  align-items: start;
}

.about p,
.promise p,
.contact p,
.service-card p,
.clients p,
.hero-card p,
.process p,
.scenarios p,
.faq p {
  color: var(--muted);
}

.about-copy {
  display: grid;
  gap: 24px;
}

.value-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.value-strip div {
  padding: 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
}

.value-strip strong,
.value-strip span {
  display: block;
}

.value-strip strong {
  margin-bottom: 4px;
  color: var(--primary-dark);
}

.value-strip span {
  color: var(--muted);
  font-size: 14px;
}

.section-head {
  max-width: 760px;
  margin-bottom: 38px;
}

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

.service-card {
  min-height: 260px;
  padding: 26px;
  background:
    linear-gradient(180deg, #ffffff, #fbfdfb);
  border: 1px solid var(--line);
  border-radius: 24px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.service-num {
  display: inline-flex;
  margin-bottom: 32px;
  color: var(--primary);
  font-weight: 900;
}

.process {
  background: #fff;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  counter-reset: step;
}

.process-grid article {
  position: relative;
  padding: 28px 22px;
  background: var(--primary-soft);
  border: 1px solid rgba(15, 111, 79, 0.14);
  border-radius: 24px;
}

.process-grid article::after {
  position: absolute;
  top: 42px;
  right: -18px;
  z-index: 1;
  width: 36px;
  height: 2px;
  content: "";
  background: rgba(15, 111, 79, 0.26);
}

.process-grid article:last-child::after {
  display: none;
}

.process-grid span {
  display: inline-flex;
  margin-bottom: 28px;
  color: var(--primary);
  font-weight: 900;
}

.advantages {
  color: #fff;
  background:
    radial-gradient(circle at 90% 20%, rgba(217, 154, 49, 0.28), transparent 28%),
    linear-gradient(135deg, rgba(9, 63, 52, 0.98), rgba(15, 111, 79, 0.94)),
    linear-gradient(45deg, #093f34, #0f6f4f);
}

.light .section-kicker,
.advantages .section-kicker {
  color: #ffd99f;
}

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

.advantage-grid div {
  padding: 24px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 22px;
}

.advantage-grid strong,
.advantage-grid span {
  display: block;
}

.advantage-grid strong {
  margin-bottom: 8px;
  font-size: 19px;
}

.advantage-grid span {
  color: rgba(255, 255, 255, 0.76);
}

.scenarios {
  background: linear-gradient(180deg, #f4f7f5, #ffffff);
}

.scenario-grid,
.faq-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 54px;
  align-items: start;
}

.scenario-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.scenario-cards div {
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 12px 32px rgba(15, 63, 52, 0.06);
}

.scenario-cards strong,
.scenario-cards span {
  display: block;
}

.scenario-cards strong {
  margin-bottom: 8px;
  color: var(--primary-dark);
  font-size: 18px;
}

.scenario-cards span {
  color: var(--muted);
}

.industry-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.industry-list span {
  padding: 12px 18px;
  color: var(--primary-dark);
  font-weight: 700;
  background: var(--accent-soft);
  border: 1px solid #f0dfbd;
  border-radius: 999px;
}

.clients {
  margin-top: 34px;
  padding: 28px;
}

.faq {
  background: #fff;
}

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

.faq-list details {
  padding: 22px 24px;
  background: #fbfdfb;
  border: 1px solid var(--line);
  border-radius: 20px;
}

.faq-list summary {
  color: var(--primary-dark);
  font-size: 18px;
  font-weight: 800;
  cursor: pointer;
}

.faq-list p {
  margin: 12px 0 0;
}

.promise {
  background: #fff;
}

.promise-cards {
  display: grid;
  gap: 18px;
}

.promise-cards > div {
  padding: 28px;
  box-shadow: none;
}

.contact {
  background:
    radial-gradient(circle at 10% 10%, rgba(217, 154, 49, 0.13), transparent 32%),
    linear-gradient(180deg, #f4f7f5, #eaf4ef);
}

.contact-card {
  padding: 34px;
}

dl,
dd {
  margin: 0;
}

dt {
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 14px;
}

dd {
  color: var(--ink);
  font-size: 18px;
  font-weight: 700;
}

dl div + div {
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.site-footer {
  padding: 42px 0 24px;
  color: rgba(255, 255, 255, 0.76);
  background: var(--primary-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.7fr 1.1fr;
  gap: 34px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-grid strong {
  display: block;
  margin-bottom: 10px;
  color: #fff;
  font-size: 20px;
}

.footer-grid span,
.footer-grid a,
.footer-grid p {
  display: block;
  margin: 0;
}

.footer-grid span {
  margin-bottom: 10px;
  color: #fff;
  font-weight: 800;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 20px;
  font-size: 14px;
}

.mobile-cta {
  display: none;
}

@media (max-width: 920px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 16px 0;
  }

  .nav-links {
    flex-wrap: wrap;
    gap: 14px 20px;
  }

  .hero-grid,
  .split,
  .promise-grid,
  .contact-grid,
  .scenario-grid,
  .faq-grid {
    grid-template-columns: 1fr;
  }

  .service-grid,
  .advantage-grid,
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-grid article::after {
    display: none;
  }

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

@media (max-width: 640px) {
  .wrap {
    width: min(100% - 28px, 1160px);
  }

  .brand-text {
    font-size: 15px;
  }

  .nav-links {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .nav-links a {
    padding: 8px 10px;
    background: rgba(15, 111, 79, 0.06);
    border-radius: 12px;
  }

  .nav-phone {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  .hero,
  .section {
    padding: 62px 0;
  }

  h1 {
    font-size: 38px;
  }

  .hero-actions,
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .btn {
    width: 100%;
  }

  .hero-card,
  .contact-card,
  .clients,
  .promise-cards > div,
  .service-card {
    border-radius: 20px;
  }

  .metrics,
  .service-grid,
  .advantage-grid,
  .process-grid,
  .scenario-cards,
  .value-strip {
    grid-template-columns: 1fr;
  }

  body {
    padding-bottom: 64px;
  }

  .mobile-cta {
    position: fixed;
    right: 14px;
    bottom: 14px;
    left: 14px;
    z-index: 20;
    display: block;
  }

  .mobile-cta a {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    color: #fff;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 999px;
    box-shadow: 0 16px 34px rgba(9, 63, 52, 0.28);
  }

  dd {
    font-size: 16px;
  }
}