*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #ffffff;
  --bg-soft: #f4f7fb;
  --bg-ink: #0e1726;
  --text: #142033;
  --muted: #667085;
  --line: #e4e9f1;
  --primary: #1d5fd7;
  --primary-dark: #16489f;
  --green: #159a73;
  --amber: #bd7a21;
  --red: #c7474d;
  --cyan: #1e9bb7;
  --shadow: 0 22px 54px rgba(15, 23, 42, .12);
  --radius: 8px;
  --max: 1180px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
}

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

img {
  display: block;
  max-width: 100%;
}

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  background: rgba(255, 255, 255, .94);
  border-bottom: 1px solid rgba(226, 232, 240, .9);
  backdrop-filter: blur(16px);
}

.nav.scrolled {
  box-shadow: 0 10px 28px rgba(15, 23, 42, .07);
}

.nav-inner {
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  white-space: nowrap;
}

.logo-mark {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), var(--green));
  color: #fff;
  font-size: 18px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
  color: var(--muted);
  font-size: 14px;
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  border: 0;
  background: transparent;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
}

.hero {
  position: relative;
  padding: 138px 0 92px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(244, 247, 251, .96), rgba(236, 246, 242, .92)),
    linear-gradient(90deg, #ffffff, #f4f7fb);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 70px auto auto 0;
  width: 44%;
  height: 520px;
  background: linear-gradient(135deg, rgba(29, 95, 215, .18), rgba(21, 154, 115, .12));
  clip-path: polygon(0 0, 82% 0, 64% 100%, 0 100%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(440px, 1.05fr);
  gap: 56px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 3px 12px;
  border-radius: 999px;
  background: rgba(29, 95, 215, .09);
  color: var(--primary);
  font-size: 13px;
  font-weight: 800;
}

.hero h1 {
  margin-top: 18px;
  font-size: 52px;
  line-height: 1.12;
  font-weight: 850;
}

.hero-desc {
  margin-top: 22px;
  max-width: 660px;
  color: var(--muted);
  font-size: 18px;
}

.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 24px;
  border-radius: 8px;
  font-weight: 800;
  transition: .2s ease;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

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

.btn-outline:hover {
  background: #eef4ff;
}

.trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}

.trust-strip span {
  padding: 9px 12px;
  border: 1px solid rgba(29, 95, 215, .14);
  border-radius: 999px;
  background: rgba(255, 255, 255, .72);
  color: #334155;
  font-size: 13px;
  font-weight: 700;
}

.hero-visual {
  overflow: hidden;
  border-radius: 16px;
  background: #fff;
  box-shadow: var(--shadow);
  border: 1px solid rgba(29, 95, 215, .16);
}

.hero-visual img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.hero-visual figcaption {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 20px;
  background: #fff;
}

.hero-visual strong,
.hero-visual span {
  display: block;
}

.hero-visual span {
  max-width: 300px;
  color: var(--muted);
  font-size: 14px;
}

.section {
  padding: 86px 0;
}

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

.section-dark {
  background: var(--bg-ink);
  color: #fff;
}

.section-blue {
  color: #fff;
  background:
    linear-gradient(135deg, rgba(14, 23, 38, .96), rgba(19, 68, 138, .96)),
    #12223a;
}

.section-header {
  max-width: 780px;
  margin: 0 auto 46px;
  text-align: center;
}

.section-header h2,
.solution-layout h2,
.scenes-layout h2,
.contact-layout h2 {
  margin-top: 14px;
  font-size: 36px;
  line-height: 1.25;
  font-weight: 850;
}

.section-header p:not(.eyebrow),
.lead {
  margin-top: 14px;
  color: var(--muted);
  font-size: 16px;
}

.inverse p:not(.eyebrow),
.section-dark .lead,
.section-dark .contact-cards span {
  color: #aeb9c9;
}

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

.pain-grid article,
.module-card,
.value-card,
.scene-list div,
.proof-grid div {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 10px 30px rgba(15, 23, 42, .04);
}

.pain-grid article {
  min-height: 230px;
  padding: 24px;
}

.pain-grid span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 28px;
  border-radius: 999px;
  background: #eef4ff;
  color: var(--primary);
  font-weight: 850;
  font-size: 13px;
}

.pain-grid h3,
.module-card h3,
.value-card h3 {
  margin-top: 16px;
  font-size: 20px;
}

.pain-grid p,
.module-card p,
.scene-list span,
.proof-grid span {
  display: block;
  margin-top: 9px;
  color: var(--muted);
  font-size: 14px;
}

.solution-layout,
.scenes-layout,
.contact-layout {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 48px;
  align-items: start;
}

.solution-points {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}

.solution-points div {
  padding: 18px;
  border-left: 4px solid var(--green);
  border-radius: var(--radius);
  background: var(--bg-soft);
}

.solution-points strong,
.solution-points span {
  display: block;
}

.solution-points span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 14px;
}

.value-card {
  padding: 30px;
  box-shadow: var(--shadow);
}

.value-card ul {
  margin-top: 18px;
  list-style: none;
}

.value-card li {
  position: relative;
  padding: 11px 0 11px 24px;
  border-bottom: 1px solid var(--line);
  color: #334155;
}

.value-card li:last-child {
  border-bottom: 0;
}

.value-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 21px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
}

.flow-map {
  display: grid;
  grid-template-columns: 1fr 30px 1fr 30px 1fr 30px 1fr 30px 1fr;
  gap: 10px;
  align-items: stretch;
}

.flow-node {
  min-height: 172px;
  padding: 22px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .14);
}

.flow-node span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #fff;
  color: var(--primary);
  font-weight: 850;
}

.flow-node strong,
.flow-node em {
  display: block;
}

.flow-node strong {
  margin-top: 18px;
  font-size: 20px;
}

.flow-node em {
  margin-top: 8px;
  color: #b9c7d9;
  font-style: normal;
  font-size: 14px;
}

.flow-arrow {
  align-self: center;
  height: 2px;
  background: linear-gradient(90deg, rgba(255, 255, 255, .16), rgba(255, 255, 255, .72));
  position: relative;
}

.flow-arrow::after {
  content: "";
  position: absolute;
  right: -1px;
  top: -4px;
  border-left: 8px solid rgba(255, 255, 255, .72);
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
}

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

.module-card {
  min-height: 236px;
  padding: 24px;
  overflow: hidden;
  position: relative;
}

.module-card::after {
  content: "";
  position: absolute;
  inset: auto -32px -32px auto;
  width: 118px;
  height: 118px;
  border-radius: 50%;
  background: rgba(29, 95, 215, .07);
}

.module-code {
  width: 58px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--cyan));
  font-size: 14px;
  font-weight: 850;
}

.scene-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.scene-list div {
  padding: 22px;
}

.scene-list strong {
  display: block;
  font-size: 18px;
}

.proof {
  padding: 44px 0;
  background: #fff;
}

.proof-grid div {
  padding: 22px;
  border-top: 4px solid var(--primary);
}

.proof-grid div:nth-child(2) {
  border-top-color: var(--green);
}

.proof-grid div:nth-child(3) {
  border-top-color: var(--amber);
}

.proof-grid div:nth-child(4) {
  border-top-color: var(--red);
}

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

.proof-grid strong {
  font-size: 21px;
}

.contact-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.contact-cards div {
  min-height: 118px;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .06);
}

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

.contact-cards strong {
  margin-top: 10px;
  font-size: 18px;
}

.footer {
  background: #09111f;
  color: #8996aa;
  font-size: 14px;
  border-top: 1px solid rgba(255, 255, 255, .08);
}

.footer .container {
  min-height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

@media (max-width: 1080px) {
  .hero-inner,
  .solution-layout,
  .scenes-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    max-width: 840px;
  }

  .pain-grid,
  .module-grid,
  .proof-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .flow-map {
    grid-template-columns: 1fr;
  }

  .flow-arrow {
    width: 2px;
    height: 24px;
    justify-self: center;
    background: linear-gradient(180deg, rgba(255, 255, 255, .16), rgba(255, 255, 255, .72));
  }

  .flow-arrow::after {
    right: -4px;
    top: auto;
    bottom: -1px;
    border-top: 8px solid rgba(255, 255, 255, .72);
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-bottom: 0;
  }
}

@media (max-width: 760px) {
  .nav-links {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav.open .nav-links {
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding: 18px 24px;
    border-bottom: 1px solid var(--line);
    background: #fff;
  }

  .hero {
    padding-top: 110px;
  }

  .hero h1 {
    font-size: 38px;
  }

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

  .hero-visual figcaption,
  .footer .container {
    flex-direction: column;
    align-items: flex-start;
  }

  .section {
    padding: 64px 0;
  }

  .section-header h2,
  .solution-layout h2,
  .scenes-layout h2,
  .contact-layout h2 {
    font-size: 30px;
  }

  .pain-grid,
  .module-grid,
  .proof-grid,
  .scene-list,
  .contact-cards {
    grid-template-columns: 1fr;
  }
}