:root {
  --bg: #f7f8fb;
  --ink: #151922;
  --muted: #606978;
  --line: #dde3ec;
  --panel: #ffffff;
  --brand: #176bff;
  --brand-dark: #0f3f9d;
  --accent: #16a085;
  --warm: #ffb85c;
  --shadow: 0 22px 70px rgba(28, 39, 62, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", sans-serif;
  line-height: 1.65;
  padding-bottom: 48px;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(221, 227, 236, 0.8);
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(1160px, calc(100% - 40px));
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 20px;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  color: #fff;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  font-size: 18px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
  color: #3d4655;
  font-size: 15px;
}

.nav-links a:hover {
  color: var(--brand);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 6px;
  border: 1px solid transparent;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  white-space: nowrap;
}

.button.secondary {
  background: #fff;
  color: var(--brand-dark);
  border-color: #c8d6f2;
}

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 12%, rgba(22, 160, 133, 0.16), transparent 30%),
    linear-gradient(135deg, #ffffff 0%, #eef4ff 58%, #f6fbf8 100%);
}

.hero-inner {
  width: min(1160px, calc(100% - 40px));
  min-height: 640px;
  margin: 0 auto;
  padding: 82px 0 78px;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.88fr);
  align-items: center;
  gap: 54px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--brand-dark);
  font-weight: 800;
  letter-spacing: 0;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 22px;
  font-size: clamp(44px, 6vw, 78px);
  line-height: 1.05;
  letter-spacing: 0;
}

.lead {
  max-width: 670px;
  color: #495364;
  font-size: 19px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.trust-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 48px;
  max-width: 720px;
}

.trust-item {
  padding: 16px 18px;
  border-left: 3px solid var(--brand);
  background: rgba(255, 255, 255, 0.72);
}

.trust-item strong {
  display: block;
  font-size: 22px;
  line-height: 1.2;
}

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

.product-visual {
  min-height: 430px;
  position: relative;
  display: grid;
  place-items: center;
}

.screen {
  width: min(100%, 500px);
  border: 1px solid rgba(160, 174, 196, 0.34);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.screen-bar {
  display: flex;
  gap: 8px;
  padding: 14px 16px;
  border-bottom: 1px solid #e8edf5;
}

.screen-bar i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #d4dbe8;
}

.screen-body {
  padding: 24px;
}

.screen-title {
  height: 18px;
  width: 48%;
  border-radius: 4px;
  background: #14213d;
}

.metric-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 24px 0;
}

.metric {
  min-height: 94px;
  border: 1px solid #e6ebf3;
  border-radius: 8px;
  padding: 14px;
  background: #f9fbfe;
}

.metric::before {
  content: "";
  display: block;
  height: 10px;
  width: 54%;
  border-radius: 4px;
  background: #9fb4d3;
}

.metric::after {
  content: "";
  display: block;
  height: 28px;
  width: 72%;
  margin-top: 18px;
  border-radius: 5px;
  background: linear-gradient(90deg, var(--brand), var(--accent));
}

.chart {
  height: 120px;
  display: flex;
  align-items: end;
  gap: 12px;
  padding-top: 22px;
}

.chart span {
  flex: 1;
  border-radius: 6px 6px 0 0;
  background: #dce8ff;
}

.chart span:nth-child(2) {
  height: 72%;
  background: #b9d2ff;
}

.chart span:nth-child(3) {
  height: 52%;
  background: #8bb4ff;
}

.chart span:nth-child(4) {
  height: 88%;
  background: var(--brand);
}

.chart span:nth-child(5) {
  height: 64%;
  background: var(--accent);
}

.float-card {
  position: absolute;
  right: 0;
  bottom: 34px;
  width: 250px;
  padding: 18px;
  border-radius: 8px;
  background: #14213d;
  color: #fff;
  box-shadow: 0 16px 38px rgba(20, 33, 61, 0.2);
}

.float-card strong {
  display: block;
  font-size: 21px;
  line-height: 1.15;
}

.float-card span {
  color: #d5def0;
  font-size: 14px;
}

.section {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  padding: 84px 0;
}

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

.section-head h2 {
  margin-bottom: 12px;
  font-size: 34px;
  line-height: 1.2;
}

.section-head p {
  color: var(--muted);
}

.services {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.service-card {
  min-height: 360px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 12px 38px rgba(24, 34, 54, 0.06);
}

.service-icon {
  width: 46px;
  height: 46px;
  margin-bottom: 24px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  background: var(--brand-dark);
  font-weight: 900;
}

.service-card:nth-child(2) .service-icon {
  background: var(--accent);
}

.service-card:nth-child(3) .service-icon {
  background: #b86d1f;
}

.service-card h3 {
  margin-bottom: 12px;
  font-size: 24px;
}

.service-card p {
  color: var(--muted);
}

.service-card ul {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.service-card li {
  position: relative;
  margin-top: 10px;
  padding-left: 18px;
  color: #374253;
}

.service-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
}

.process-band {
  background: #101827;
  color: #fff;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: rgba(255, 255, 255, 0.16);
}

.process-item {
  min-height: 210px;
  padding: 28px;
  background: #101827;
}

.process-item span {
  color: var(--warm);
  font-weight: 800;
}

.process-item h3 {
  margin: 18px 0 10px;
  font-size: 20px;
}

.process-item p {
  margin-bottom: 0;
  color: #ccd5e3;
  font-size: 15px;
}

.contact-panel {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 36px;
  align-items: start;
  padding: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

.contact-panel h2 {
  font-size: 32px;
  line-height: 1.2;
}

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

.contact-list div {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid #edf1f6;
}

.contact-list dt {
  color: var(--muted);
}

.contact-list dd {
  margin: 0;
  font-weight: 700;
  text-align: right;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #fff;
}

.footer-inner {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  padding: 28px 0;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  font-size: 14px;
}

.footer-icp {
  color: #3d4655;
}

.footer-icp:hover {
  color: var(--brand);
}

.icp-float {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 30;
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  color: #3d4655;
  background: rgba(255, 255, 255, 0.94);
  border-top: 1px solid var(--line);
  backdrop-filter: blur(16px);
  font-size: 14px;
}

.icp-float a {
  color: var(--brand-dark);
  font-weight: 700;
}

@media (max-width: 900px) {
  .nav {
    width: min(100% - 28px, 720px);
  }

  .nav-links a:not(.button) {
    display: none;
  }

  .hero-inner,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    min-height: auto;
    padding-top: 56px;
  }

  .product-visual {
    min-height: 360px;
  }

  .services,
  .process-grid,
  .trust-row {
    grid-template-columns: 1fr;
  }

  .section {
    width: min(100% - 28px, 720px);
    padding: 64px 0;
  }
}

@media (max-width: 560px) {
  body {
    padding-bottom: 58px;
  }

  .nav {
    min-height: 62px;
  }

  .brand {
    font-size: 18px;
  }

  .nav-links .button {
    min-height: 38px;
    padding: 0 12px;
    font-size: 14px;
  }

  h1 {
    font-size: 42px;
  }

  .lead {
    font-size: 17px;
  }

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

  .button {
    width: 100%;
  }

  .float-card {
    right: 10px;
    width: 210px;
  }

  .contact-panel {
    padding: 26px 20px;
  }

  .contact-list div,
  .footer-inner {
    flex-direction: column;
  }

  .contact-list dd {
    text-align: left;
  }
}