:root {
  --bg: #ffffff;
  --bg-soft: #f5f9ff;
  --bg-panel: #ffffff;
  --ink: #061846;
  --text: #20345f;
  --muted: #657391;
  --line: #dce6f4;
  --blue: #0757e6;
  --blue-dark: #0639a8;
  --teal: #12b8b0;
  --cyan: #65cfff;
  --shadow: 0 24px 70px rgba(6, 24, 70, 0.11);
  --radius: 8px;
  --header-height: 76px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background: var(--bg);
}

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

svg {
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  padding: 0 clamp(20px, 5vw, 72px);
  border-bottom: 1px solid rgba(220, 230, 244, 0.8);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 760;
  color: var(--ink);
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  font-weight: 850;
  background: linear-gradient(145deg, #0866f2 0%, #043bc1 56%, #10c5bd 100%);
  box-shadow: 0 12px 24px rgba(7, 87, 230, 0.24);
}

.brand-name {
  font-size: 24px;
  letter-spacing: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2vw, 34px);
  font-size: 14px;
  font-weight: 650;
  color: var(--ink);
}

.site-nav a {
  position: relative;
  padding: 28px 0;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 22px;
  left: 0;
  height: 2px;
  content: "";
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  border-radius: 999px;
  background: var(--ink);
}

.section-pad {
  padding: clamp(72px, 9vw, 118px) clamp(20px, 5vw, 72px);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.94fr) minmax(420px, 1.06fr);
  gap: clamp(34px, 6vw, 84px);
  min-height: clamp(540px, 62vh, 600px);
  align-items: center;
  overflow: hidden;
  padding-top: clamp(48px, 6vw, 68px);
  padding-bottom: clamp(38px, 5vw, 54px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 76% 18%, rgba(101, 207, 255, 0.2), transparent 30%),
    linear-gradient(180deg, #fff 0%, #f9fcff 100%);
}

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

.hero h1 {
  max-width: 760px;
  margin: 0;
  color: var(--ink);
  font-size: clamp(40px, 5.2vw, 68px);
  font-weight: 780;
  line-height: 1.02;
  letter-spacing: 0;
}

.hero p {
  max-width: 620px;
  margin: 26px 0 0;
  color: var(--text);
  font-size: clamp(17px, 1.6vw, 21px);
  line-height: 1.72;
}

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

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 720;
  line-height: 1;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  box-shadow: 0 16px 32px rgba(7, 87, 230, 0.25);
}

.button-secondary {
  color: var(--blue);
  border-color: rgba(7, 87, 230, 0.4);
  background: #fff;
}

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

.button-ghost {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.55);
  background: transparent;
}

.hero-visual {
  position: relative;
  min-height: 440px;
}

.network-map {
  position: absolute;
  inset: 0;
  border-radius: 48% 52% 42% 58%;
  background:
    linear-gradient(35deg, transparent 16%, rgba(7, 87, 230, 0.15) 16.4%, transparent 17%),
    linear-gradient(145deg, transparent 24%, rgba(18, 184, 176, 0.18) 24.4%, transparent 25%),
    radial-gradient(circle at 49% 46%, rgba(7, 87, 230, 0.14) 0 2px, transparent 3px),
    radial-gradient(circle at 52% 44%, rgba(7, 87, 230, 0.07), transparent 48%),
    repeating-radial-gradient(circle at 56% 42%, rgba(7, 87, 230, 0.15) 0 1px, transparent 1px 12px);
  opacity: 0.95;
}

.network-orbit {
  position: absolute;
  border: 1px solid rgba(7, 87, 230, 0.18);
  border-radius: 50%;
  transform: rotate(-10deg);
}

.orbit-one {
  inset: 70px 18px 84px 4px;
}

.orbit-two {
  inset: 130px -28px 128px 58px;
  transform: rotate(17deg);
}

.node {
  position: absolute;
  width: 9px;
  height: 9px;
  border: 2px solid #fff;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 5px rgba(101, 207, 255, 0.16);
}

.node-a { top: 16%; left: 28%; }
.node-b { top: 30%; right: 18%; }
.node-c { top: 55%; left: 14%; }
.node-d { right: 32%; bottom: 20%; }
.node-e { right: 10%; bottom: 38%; }

.platform-card,
.floating-card {
  position: absolute;
  border: 1px solid rgba(220, 230, 244, 0.9);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow);
}

.main-platform {
  top: 31%;
  left: 33%;
  display: grid;
  width: 220px;
  min-height: 180px;
  place-items: center;
  padding: 26px;
  text-align: center;
}

.platform-logo {
  display: grid;
  width: 76px;
  height: 76px;
  place-items: center;
  border-radius: 20px;
  color: #fff;
  font-size: 44px;
  font-weight: 850;
  background: linear-gradient(145deg, #0866f2, #043bc1 58%, #10c5bd);
}

.main-platform strong {
  margin-top: 14px;
  color: var(--ink);
  font-size: 18px;
}

.main-platform span:last-child {
  color: var(--muted);
  font-size: 13px;
}

.floating-card {
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 220px;
  padding: 14px 16px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 720;
}

.floating-card .icon {
  display: grid;
  flex: 0 0 34px;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 8px;
  color: var(--blue);
  background: #eef6ff;
}

.floating-card svg {
  width: 20px;
  height: 20px;
}

.merchant-card { top: 20%; left: 3%; }
.risk-card { right: 5%; top: 48%; }
.settlement-card { bottom: 14%; left: 9%; }

.section-band {
  background: var(--bg-soft);
}

.section-heading {
  max-width: 760px;
  margin: 0 auto 38px;
  text-align: center;
}

.section-heading h2,
.contact-panel h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 770;
  line-height: 1.12;
  letter-spacing: 0;
}

.section-heading p,
.contact-panel p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.split-heading {
  display: flex;
  max-width: 1180px;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  text-align: left;
}

.split-heading p {
  max-width: 620px;
}

.text-link {
  flex: 0 0 auto;
  color: var(--blue);
  font-weight: 740;
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  max-width: 1180px;
  margin: 0 auto;
}

.service-card,
.solution-grid article,
.customer-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-panel);
}

.service-card {
  min-height: 270px;
  padding: 32px;
  box-shadow: 0 18px 50px rgba(6, 24, 70, 0.055);
}

.service-icon {
  display: grid;
  width: 62px;
  height: 62px;
  place-items: center;
  border-radius: 50%;
  color: var(--blue);
  background: linear-gradient(145deg, #eef6ff, #f8fbff);
}

.service-icon svg {
  width: 30px;
  height: 30px;
}

.service-card h3,
.solution-feature h3,
.solution-grid h3,
.advantage-list h3,
.customer-grid h3 {
  margin: 24px 0 0;
  color: var(--ink);
  font-size: 20px;
  line-height: 1.26;
  letter-spacing: 0;
}

.service-card p,
.solution-feature p,
.solution-grid p,
.advantage-list p,
.customer-grid p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.68;
}

.solution-layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.68fr) minmax(0, 1.32fr);
  gap: 28px;
  max-width: 1180px;
  margin: 0 auto;
}

.solution-feature {
  position: sticky;
  top: calc(var(--header-height) + 24px);
  align-self: start;
  padding: 36px;
  border-radius: var(--radius);
  color: #fff;
  background:
    linear-gradient(135deg, rgba(7, 87, 230, 0.94), rgba(6, 24, 70, 0.96)),
    radial-gradient(circle at 80% 20%, rgba(18, 184, 176, 0.4), transparent 28%);
}

.solution-feature h3,
.solution-feature p {
  color: #fff;
}

.solution-feature p {
  opacity: 0.82;
}

.check-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 28px 0 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 26px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 14px;
  line-height: 1.55;
}

.check-list li::before {
  position: absolute;
  top: 2px;
  left: 0;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  content: "";
  background: var(--teal);
}

.check-list li::after {
  position: absolute;
  top: 6px;
  left: 5px;
  width: 5px;
  height: 8px;
  border-right: 2px solid #fff;
  border-bottom: 2px solid #fff;
  content: "";
  transform: rotate(45deg);
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.solution-grid article {
  min-height: 178px;
  padding: 24px;
}

.solution-grid h3 {
  margin-top: 0;
  font-size: 18px;
}

.dark-section {
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(circle at 88% 18%, rgba(18, 184, 176, 0.32), transparent 28%),
    linear-gradient(135deg, #061846 0%, #062b75 52%, #0757e6 100%);
}

.dark-section .section-heading h2,
.dark-section .section-heading p {
  color: #fff;
}

.dark-section .section-heading p {
  opacity: 0.78;
}

.advantage-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  max-width: 1180px;
  margin: 0 auto;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
}

.advantage-list article {
  min-height: 260px;
  padding: 28px 24px;
  border-right: 1px solid rgba(255, 255, 255, 0.16);
}

.advantage-list article:last-child {
  border-right: 0;
}

.advantage-list span {
  color: var(--cyan);
  font-size: 13px;
  font-weight: 800;
}

.advantage-list h3,
.advantage-list p {
  color: #fff;
}

.advantage-list p {
  opacity: 0.76;
}

.customer-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
  max-width: 1180px;
  margin: 0 auto;
}

.customer-grid article {
  min-height: 188px;
  padding: 24px 20px;
  text-align: center;
}

.customer-grid span {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  margin: 0 auto;
  border-radius: 50%;
  color: var(--blue);
  font-size: 13px;
  font-weight: 820;
  background: #eef6ff;
}

.customer-grid h3 {
  margin-top: 18px;
  font-size: 18px;
}

.contact-section {
  padding: 0 clamp(20px, 5vw, 72px) clamp(72px, 9vw, 118px);
}

.contact-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 32px;
  max-width: 1180px;
  align-items: center;
  margin: 0 auto;
  padding: clamp(32px, 5vw, 54px);
  border-radius: var(--radius);
  color: #fff;
  background:
    linear-gradient(90deg, rgba(6, 24, 70, 0.94), rgba(7, 87, 230, 0.9)),
    repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.14) 0 1px, transparent 1px 22px);
  box-shadow: var(--shadow);
}

.contact-panel h2,
.contact-panel p {
  max-width: 720px;
  color: #fff;
}

.contact-panel p {
  opacity: 0.8;
}

.contact-actions {
  margin-top: 0;
  justify-content: flex-end;
}

.site-footer {
  padding: 50px clamp(20px, 5vw, 72px) 28px;
  border-top: 1px solid var(--line);
  background: #f9fbff;
}

.footer-brand,
.footer-links,
.footer-bottom {
  max-width: 1180px;
  margin: 0 auto;
}

.site-footer {
  display: grid;
  gap: 32px;
}

.footer-brand {
  display: flex;
  justify-content: space-between;
  gap: 32px;
}

.footer-brand p {
  max-width: 440px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  width: 100%;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.footer-links h2 {
  margin: 0 0 14px;
  color: var(--ink);
  font-size: 14px;
}

.footer-links a {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  width: 100%;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 1060px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 80px;
  }

  .hero-visual {
    min-height: 460px;
  }

  .business-grid,
  .advantage-list,
  .customer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .advantage-list article {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  }

  .solution-layout {
    grid-template-columns: 1fr;
  }

  .solution-feature {
    position: relative;
    top: auto;
  }

  .contact-panel,
  .footer-brand {
    grid-template-columns: 1fr;
  }

  .contact-panel {
    display: grid;
  }

  .contact-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 760px) {
  :root {
    --header-height: 66px;
  }

  .site-header {
    padding: 0 18px;
  }

  .brand-name {
    font-size: 21px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: var(--header-height);
    right: 14px;
    left: 14px;
    display: grid;
    gap: 0;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity 180ms ease, transform 180ms ease;
  }

  .site-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav a {
    padding: 16px;
    border-radius: 6px;
  }

  .site-nav a:hover {
    background: var(--bg-soft);
  }

  .site-nav a::after {
    display: none;
  }

  .section-pad {
    padding: 64px 18px;
  }

  .hero {
    gap: 28px;
    padding-top: 54px;
  }

  .hero h1 {
    font-size: clamp(38px, 11vw, 48px);
  }

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

  .button {
    width: 100%;
  }

  .hero-visual {
    min-height: 390px;
  }

  .main-platform {
    top: 27%;
    left: 50%;
    width: min(210px, 72vw);
    min-height: 160px;
    transform: translateX(-50%);
  }

  .platform-logo {
    width: 64px;
    height: 64px;
    font-size: 38px;
  }

  .floating-card {
    max-width: 190px;
    padding: 12px;
    font-size: 12px;
  }

  .merchant-card { top: 8%; left: 0; }
  .risk-card { right: 0; top: 55%; }
  .settlement-card { bottom: 5%; left: 2%; }

  .section-heading,
  .split-heading {
    margin-bottom: 28px;
    text-align: left;
  }

  .split-heading {
    display: block;
  }

  .text-link {
    display: inline-flex;
    margin-top: 16px;
  }

  .business-grid,
  .solution-grid,
  .advantage-list,
  .customer-grid,
  .footer-links {
    grid-template-columns: 1fr;
  }

  .service-card {
    min-height: auto;
    padding: 26px;
  }

  .solution-feature,
  .solution-grid article {
    padding: 26px;
  }

  .advantage-list article {
    min-height: auto;
  }

  .contact-section {
    padding: 0 18px 64px;
  }

  .contact-panel {
    padding: 30px 22px;
  }

  .footer-brand {
    display: grid;
  }

  .footer-bottom {
    display: grid;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}