:root {
  --ink: #142033;
  --muted-ink: #5d6878;
  --deep: #0b1726;
  --line: #dbe3ec;
  --soft: #f4f8fb;
  --panel: #ffffff;
  --accent: #13b89a;
  --accent-dark: #0c8d7d;
  --cyan: #38bfd3;
  --shadow: 0 20px 50px rgba(16, 38, 65, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
  line-height: 1.7;
  background: #ffffff;
}

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

p {
  margin: 0 0 16px;
  color: var(--muted-ink);
}

h1,
h2,
h3 {
  margin: 0 0 16px;
  line-height: 1.25;
  color: var(--ink);
  letter-spacing: 0;
}

h1 {
  font-size: 48px;
}

h2 {
  font-size: 32px;
}

h3 {
  font-size: 20px;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: var(--deep);
  white-space: nowrap;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: 8px;
  color: #ffffff;
  background: linear-gradient(135deg, var(--accent), var(--cyan));
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav a {
  padding: 10px 13px;
  border-radius: 6px;
  color: #314057;
  font-size: 15px;
  font-weight: 600;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--accent-dark);
  background: #e9f8f5;
}

.hero {
  background:
    linear-gradient(120deg, rgba(11, 23, 38, 0.95), rgba(20, 53, 78, 0.88)),
    radial-gradient(circle at 80% 20%, rgba(56, 191, 211, 0.35), transparent 36%);
  color: #ffffff;
  padding: 92px 0 76px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 48px;
  align-items: center;
}

.hero h1,
.hero h2,
.hero h3,
.cta-band h2 {
  color: #ffffff;
}

.hero-text {
  max-width: 680px;
  color: #d7e5ef;
  font-size: 19px;
}

.eyebrow {
  margin-bottom: 12px;
  color: var(--accent-dark);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero .eyebrow,
.cta-band .eyebrow {
  color: #73f0dc;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border: 0;
  border-radius: 7px;
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
}

.btn-primary {
  color: #ffffff;
  background: var(--accent);
  box-shadow: 0 12px 24px rgba(19, 184, 154, 0.24);
}

.btn-primary:hover {
  background: var(--accent-dark);
}

.btn-secondary {
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.32);
  background: rgba(255, 255, 255, 0.08);
}

.btn-light {
  color: var(--deep);
  background: #ffffff;
}

.hero-panel {
  display: grid;
  gap: 16px;
}

.metric-card {
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.14);
}

.metric-card strong {
  display: block;
  margin-bottom: 8px;
  color: #ffffff;
  font-size: 24px;
}

.metric-card span {
  color: #dbeaf1;
}

.section {
  padding: 82px 0;
}

.muted {
  background: var(--soft);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

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

.card-grid {
  display: grid;
  gap: 22px;
}

.card-grid.four {
  grid-template-columns: repeat(4, 1fr);
}

.card-grid.three {
  grid-template-columns: repeat(3, 1fr);
}

.card {
  min-height: 100%;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 14px 40px rgba(17, 45, 75, 0.06);
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 34px;
  margin-bottom: 20px;
  padding: 0 9px;
  border-radius: 6px;
  color: var(--accent-dark);
  background: #e6f8f5;
  font-size: 13px;
  font-weight: 900;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 46px;
  align-items: start;
}

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

.feature-list > div,
.info-panel,
.contact-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.feature-list h3 {
  margin-bottom: 8px;
}

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

.product-row article {
  padding: 24px;
  border-left: 4px solid var(--accent);
  background: var(--soft);
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  list-style: none;
}

.process-list li {
  min-height: 160px;
  padding: 26px;
  border-radius: 8px;
  color: #ffffff;
  background: var(--deep);
}

.process-list strong {
  display: block;
  margin-bottom: 12px;
  font-size: 20px;
}

.process-list span {
  color: #d7e5ef;
}

.cta-band {
  padding: 54px 0;
  color: #ffffff;
  background: linear-gradient(120deg, var(--deep), #0d4d50);
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.page-hero {
  padding: 76px 0 62px;
  background:
    linear-gradient(120deg, #eef7fb, #ffffff),
    radial-gradient(circle at 90% 10%, rgba(19, 184, 154, 0.18), transparent 34%);
  border-bottom: 1px solid var(--line);
}

.page-hero p {
  max-width: 760px;
  font-size: 18px;
}

.check-list {
  display: grid;
  gap: 12px;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 24px;
  color: var(--muted-ink);
}

.check-list li::before {
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  content: "";
}

.capability-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 42px;
  align-items: center;
}

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

.capability-list span {
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: #24334a;
  background: #ffffff;
  font-weight: 700;
}

.product-cards {
  display: grid;
  gap: 22px;
}

.product-card {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 32px;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.service-list {
  display: grid;
  gap: 18px;
}

.service-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 24px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.service-item span {
  display: grid;
  width: 56px;
  height: 56px;
  place-items: center;
  border-radius: 8px;
  color: #ffffff;
  background: var(--deep);
  font-weight: 900;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: 28px;
  align-items: start;
}

.contact-card {
  box-shadow: var(--shadow);
}

.contact-card a {
  color: var(--accent-dark);
  font-weight: 800;
}

.contact-primary-card {
  display: grid;
  gap: 22px;
}

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

.contact-mail-btn {
  color: var(--accent-dark);
  border: 1px solid #b6d9d3;
  background: #f3fbf9;
}

.contact-detail-list {
  display: grid;
  gap: 16px;
}

.contact-detail-item {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfdff;
}

.contact-detail-item span {
  display: block;
  margin-bottom: 8px;
  color: #4b6077;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.contact-detail-item strong {
  display: block;
  margin-bottom: 8px;
  color: var(--deep);
  font-size: 22px;
  line-height: 1.35;
}

.qr-card {
  display: grid;
  gap: 16px;
}

.qr-placeholder {
  display: grid;
  min-height: 280px;
  place-items: center;
  border: 1px dashed #93b7b0;
  border-radius: 8px;
  color: #3d5d62;
  background:
    linear-gradient(135deg, rgba(19, 184, 154, 0.08), rgba(56, 191, 211, 0.08)),
    #ffffff;
  text-align: center;
  font-weight: 800;
}

.qr-image {
  display: block;
  width: min(100%, 260px);
  height: auto;
  border-radius: 8px;
}

.qr-note {
  margin-bottom: 0;
  font-size: 14px;
}

.site-footer {
  padding: 38px 0;
  color: #c9d6e2;
  background: var(--deep);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 0.7fr;
  gap: 28px;
}

.site-footer strong,
.site-footer span {
  display: block;
  margin-bottom: 8px;
  color: #ffffff;
}

.site-footer p,
.site-footer a {
  color: #c9d6e2;
}

@media (max-width: 920px) {
  h1 {
    font-size: 38px;
  }

  h2 {
    font-size: 28px;
  }

  .nav-wrap {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .hero-grid,
  .split,
  .capability-grid,
  .product-card,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .card-grid.four,
  .product-row,
  .process-list {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 620px) {
  .container {
    width: min(100% - 28px, 1120px);
  }

  h1 {
    font-size: 32px;
  }

  h2 {
    font-size: 25px;
  }

  .brand {
    align-items: flex-start;
    white-space: normal;
  }

  .site-nav a {
    padding: 8px 10px;
    font-size: 14px;
  }

  .hero,
  .section,
  .page-hero {
    padding: 54px 0;
  }

  .hero-text,
  .page-hero p {
    font-size: 16px;
  }

  .card-grid.four,
  .card-grid.three,
  .feature-list,
  .product-row,
  .process-list {
    grid-template-columns: 1fr;
  }

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

  .service-item {
    grid-template-columns: 1fr;
  }

  .btn {
    width: 100%;
  }

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

  .contact-detail-item strong {
    font-size: 20px;
  }

  .qr-placeholder {
    min-height: 220px;
  }
}