:root {
  color-scheme: light;
  --ink: #101114;
  --text: #2d3036;
  --muted: #6c727f;
  --line: #e4e8ef;
  --panel: #ffffff;
  --soft: #f5f7fb;
  --blue: #1268f3;
  --green: #18a058;
  --amber: #c17817;
  --radius: 8px;
  --shadow: 0 24px 70px rgba(15, 23, 42, 0.14);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: #fff;
  font-size: 16px;
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 0 clamp(20px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.76);
  backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid rgba(228, 232, 239, 0.75);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 700;
  white-space: nowrap;
}
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  color: #fff;
  background: linear-gradient(135deg, #101114, #1268f3);
  font-size: 13px;
  letter-spacing: 0;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  color: #3a3d44;
  font-size: 15px;
}
.site-nav a { transition: color .2s ease; }
.site-nav a:hover { color: var(--blue); }
.nav-toggle { display: none; }

.hero {
  position: relative;
  min-height: 88svh;
  display: flex;
  align-items: flex-end;
  padding: 132px clamp(20px, 7vw, 96px) 9svh;
  overflow: hidden;
  color: #fff;
}
.hero-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, .76), rgba(0, 0, 0, .35) 48%, rgba(0, 0, 0, .05)),
    linear-gradient(0deg, rgba(0, 0, 0, .35), transparent 42%);
}
.hero-content {
  position: relative;
  max-width: 760px;
}
.eyebrow {
  margin: 0 0 12px;
  color: var(--blue);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0;
  font-size: 13px;
}
.hero .eyebrow { color: #89b8ff; }
h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 20px;
  color: inherit;
  font-size: clamp(42px, 6vw, 84px);
  line-height: 1.04;
  letter-spacing: 0;
}
h2 {
  margin-bottom: 16px;
  color: var(--ink);
  font-size: clamp(26px, 2.8vw, 40px);
  line-height: 1.15;
  letter-spacing: 0;
}
h3 {
  margin-bottom: 10px;
  color: var(--ink);
  font-size: 21px;
  line-height: 1.25;
  letter-spacing: 0;
}
.hero-subtitle {
  max-width: 720px;
  margin-bottom: 30px;
  font-size: clamp(18px, 2.1vw, 24px);
  line-height: 1.55;
  color: rgba(255, 255, 255, .88);
}
.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.primary-btn,
.secondary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
  line-height: 1.2;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.primary-btn {
  color: #fff;
  background: var(--blue);
  box-shadow: 0 16px 36px rgba(18, 104, 243, .28);
}
.primary-btn.dark { background: var(--ink); box-shadow: none; }
.secondary-btn {
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
}
.secondary-btn.light {
  color: #fff;
  background: rgba(255, 255, 255, .14);
  border-color: rgba(255, 255, 255, .34);
}
.primary-btn:hover,
.secondary-btn:hover { transform: translateY(-2px); }

.section,
.contact-band {
  padding: clamp(70px, 9vw, 124px) 0;
}
.soft,
.intro-strip {
  background: var(--soft);
}
.section-inner {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}
.section-heading {
  max-width: 820px;
  margin-bottom: 34px;
}
.section-heading p,
.lead {
  color: var(--muted);
  font-size: 18px;
}
.section-heading.narrow { max-width: 700px; }

.intro-strip { padding: 26px 0; }
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat-grid div {
  min-height: 100px;
  padding: 22px;
  background: #fff;
}
.stat-grid strong {
  display: block;
  color: var(--ink);
  font-size: 28px;
  line-height: 1.1;
}
.stat-grid span { color: var(--muted); }

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.service-card,
.process-grid article,
.content-columns article {
  min-height: 260px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}
.service-icon {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 22px;
  border-radius: var(--radius);
  color: #fff;
  background: var(--ink);
  font-size: 14px;
  font-weight: 700;
}
.service-card p,
.content-columns p,
.process-grid p,
.faq-list p { color: var(--muted); }
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}
.tag-row span {
  padding: 4px 10px;
  border-radius: 999px;
  color: #38506f;
  background: #eef4ff;
  font-size: 13px;
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, .75fr);
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
}
.check-list {
  display: grid;
  gap: 12px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}
.check-list li {
  position: relative;
  padding-left: 28px;
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .6em;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green);
}
.seo-panel {
  display: grid;
  gap: 10px;
  padding: 34px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.seo-panel.compact { box-shadow: none; }
.seo-panel span {
  color: var(--muted);
  font-size: 13px;
}
.seo-panel strong {
  margin-bottom: 14px;
  color: var(--ink);
  font-size: 22px;
  line-height: 1.35;
}
.region-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.region-link {
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: #394150;
  font-weight: 650;
}
.region-link:hover,
.region-link.is-active {
  color: #fff;
  background: var(--ink);
  border-color: var(--ink);
}

.process-grid {
  display: grid;
  grid-template-columns: 1.15fr repeat(3, 1fr);
  gap: 18px;
  align-items: stretch;
}
.process-grid > div h2 {
  font-size: clamp(30px, 3vw, 42px);
}
.process-grid article span {
  display: block;
  margin-bottom: 34px;
  color: var(--amber);
  font-weight: 800;
}

.contact-band {
  background: #101114;
  color: #fff;
}
.contact-band h2 { color: #fff; }
.contact-band .lead,
.contact-band .muted { color: rgba(255,255,255,.68); }
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 42px;
  align-items: center;
}
.qr-panel {
  padding: 20px;
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
}
.qr-panel img {
  width: 100%;
  height: auto;
  border-radius: 6px;
}
.qr-panel p {
  margin: 14px 4px 0;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

.site-footer {
  padding: 34px 0 90px;
  background: #fff;
  border-top: 1px solid var(--line);
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  color: var(--muted);
}
.footer-grid strong { color: var(--ink); }
.footer-grid p { margin-bottom: 0; }
.footer-grid div:last-child {
  display: grid;
  gap: 4px;
  text-align: right;
}

.region-hero {
  padding: 128px 0 72px;
  background:
    linear-gradient(180deg, #f7f9fd, #fff);
}
.region-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 520px);
  gap: 48px;
  align-items: center;
}
.region-hero h1 {
  color: var(--ink);
  font-size: clamp(38px, 5vw, 70px);
}
.region-hero .hero-subtitle {
  color: var(--muted);
}
.region-visual {
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.region-visual img {
  aspect-ratio: 4 / 3;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.content-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.faq-list {
  display: grid;
  gap: 12px;
}
details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 20px 24px;
}
summary {
  cursor: pointer;
  color: var(--ink);
  font-weight: 800;
}
details p { margin: 14px 0 0; }
.mobile-contact { display: none; }

@media (max-width: 920px) {
  .site-header { min-height: 64px; padding: 0 18px; }
  .brand span:last-child {
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .nav-toggle {
    display: inline-grid;
    place-items: center;
    gap: 5px;
    width: 42px;
    height: 42px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: #fff;
  }
  .nav-toggle span {
    width: 18px;
    height: 2px;
    background: var(--ink);
  }
  .site-nav {
    position: absolute;
    top: 64px;
    left: 12px;
    right: 12px;
    display: none;
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, .96);
    box-shadow: 0 18px 45px rgba(15, 23, 42, .12);
  }
  .site-nav.is-open { display: grid; }
  .site-nav a { padding: 12px; }
  .hero {
    min-height: 86svh;
    padding: 108px 20px 64px;
  }
  .hero-overlay {
    background: linear-gradient(0deg, rgba(0, 0, 0, .82), rgba(0, 0, 0, .25));
  }
  .stat-grid,
  .service-grid,
  .split-layout,
  .process-grid,
  .contact-grid,
  .region-hero-grid,
  .content-columns {
    grid-template-columns: 1fr;
  }
  .stat-grid div { min-height: 84px; }
  .service-card,
  .process-grid article,
  .content-columns article { min-height: auto; }
  .region-hero { padding-top: 104px; }
  .contact-grid { gap: 28px; }
  .qr-panel { max-width: 360px; }
  .footer-grid {
    display: grid;
  }
  .footer-grid div:last-child { text-align: left; }
  .mobile-contact {
    position: fixed;
    left: 12px;
    right: 12px;
    bottom: 12px;
    z-index: 60;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    padding: 8px;
    border-radius: 999px;
    background: rgba(16, 17, 20, .88);
    backdrop-filter: blur(16px);
  }
  .mobile-contact a {
    display: grid;
    place-items: center;
    min-height: 42px;
    border-radius: 999px;
    color: #fff;
    font-weight: 800;
  }
  .mobile-contact a:first-child { background: var(--blue); }
}

@media (max-width: 540px) {
  body { font-size: 15px; }
  .brand span:last-child { max-width: 174px; }
  h1 { font-size: 40px; }
  h2 { font-size: 28px; }
  .hero-subtitle,
  .section-heading p,
  .lead { font-size: 16px; }
  .primary-btn,
  .secondary-btn {
    width: 100%;
    min-height: 46px;
    padding: 0 16px;
  }
  .hero-actions,
  .contact-actions { width: 100%; }
  .section-inner { width: min(100% - 32px, 1160px); }
  .section, .contact-band { padding: 62px 0; }
  .stat-grid strong { font-size: 24px; }
  .region-link { width: 100%; text-align: center; }
}