:root {
  --ink: #111827;
  --muted: #5d6878;
  --line: #dbe4ee;
  --paper: #f8fafc;
  --white: #ffffff;
  --teal: #12a594;
  --teal-dark: #087f73;
  --coral: #ec6a5e;
  --amber: #f2b84b;
  --navy: #17223b;
  --shadow: 0 24px 70px rgba(17, 24, 39, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
  line-height: 1.6;
}

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

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

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

.site-header {
  position: fixed;
  top: 16px;
  left: 50%;
  z-index: 20;
  width: min(1160px, calc(100% - 32px));
  height: 68px;
  display: flex;
  align-items: center;
  gap: 26px;
  padding: 0 16px 0 22px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(219, 228, 238, 0.85);
  box-shadow: 0 18px 48px rgba(17, 24, 39, 0.12);
  backdrop-filter: blur(18px);
  transform: translateX(-50%);
}

.brand {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
}

.brand img {
  width: 154px;
  height: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex: 1;
  color: #263244;
  font-size: 14px;
  white-space: nowrap;
}

.nav-links a {
  transition: color 0.2s ease;
}

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

.header-action,
.primary-button,
.secondary-button,
.menu-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  font: inherit;
  cursor: pointer;
}

.header-action {
  min-height: 42px;
  padding: 0 16px;
  color: var(--white);
  background: var(--ink);
  font-size: 14px;
}

.header-action svg,
.primary-button svg,
.secondary-button svg,
.menu-button svg {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
}

.menu-button {
  display: none;
  width: 42px;
  height: 42px;
  color: var(--ink);
  background: #eef3f7;
}

.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding: 132px 0 72px;
  overflow: hidden;
}

.hero-media,
.hero-media img,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(9, 16, 29, 0.92), rgba(9, 16, 29, 0.72) 48%, rgba(9, 16, 29, 0.38)),
    linear-gradient(180deg, rgba(9, 16, 29, 0.12), rgba(9, 16, 29, 0.48));
}

.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(320px, 0.72fr);
  gap: 44px;
  align-items: center;
}

.hero-copy {
  color: var(--white);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  color: var(--teal);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
}

.hero-copy .eyebrow {
  color: #72e4d7;
}

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

h1 {
  max-width: 860px;
  margin-bottom: 22px;
  font-size: clamp(44px, 5.2vw, 66px);
  line-height: 1.06;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.15;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 19px;
  line-height: 1.35;
  letter-spacing: 0;
}

.hero-copy p {
  max-width: 720px;
  margin-bottom: 32px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 18px;
}

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

.primary-button,
.secondary-button {
  min-height: 52px;
  padding: 0 22px;
  font-weight: 800;
}

.primary-button {
  color: #082623;
  background: #65dfd2;
}

.secondary-button {
  color: var(--white);
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.28);
}

.commerce-panel {
  color: var(--white);
  background: rgba(17, 24, 39, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
  padding: 24px;
}

.panel-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 22px;
}

.panel-top span,
.metric-grid span,
.flow-list {
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
}

.panel-top strong {
  display: block;
  color: #ffffff;
  font-size: 44px;
  line-height: 1;
}

.status-pill {
  padding: 7px 10px;
  color: #0d3a34 !important;
  background: #8df0e3;
  font-weight: 800;
  white-space: nowrap;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 22px;
}

.metric-grid div {
  min-height: 96px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.metric-grid strong {
  display: block;
  margin-top: 10px;
  color: var(--amber);
  font-size: 28px;
  line-height: 1;
}

.flow-list {
  display: grid;
  gap: 12px;
}

.flow-list div {
  display: flex;
  align-items: center;
  gap: 10px;
}

.flow-list span {
  width: 9px;
  height: 9px;
  background: var(--coral);
}

.platform-strip {
  background: var(--white);
  border-bottom: 1px solid var(--line);
}

.platform-inner {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1px;
}

.platform-inner span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 86px;
  color: #334155;
  font-weight: 900;
  background: #ffffff;
  border-left: 1px solid #eef2f7;
}

.platform-inner span:last-child {
  border-right: 1px solid #eef2f7;
}

.section {
  padding: 104px 0;
}

.tinted {
  background: #eef5f4;
}

.split,
.data-layout,
.about-layout,
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 1fr);
  gap: 64px;
  align-items: center;
}

.section-copy p,
.about-layout p,
.contact-layout p {
  color: var(--muted);
  font-size: 17px;
}

.solution-stack {
  display: grid;
  gap: 14px;
}

.solution-row {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  min-height: 118px;
  padding: 22px;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 14px 36px rgba(17, 24, 39, 0.07);
}

.solution-row svg,
.service-card svg {
  width: 34px;
  height: 34px;
  color: var(--teal-dark);
}

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

.solution-row strong {
  margin-bottom: 6px;
  font-size: 18px;
}

.solution-row span {
  color: var(--muted);
}

.section-heading {
  max-width: 680px;
  margin-bottom: 36px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.service-card {
  min-height: 234px;
  padding: 28px;
  background: var(--white);
  border: 1px solid rgba(219, 228, 238, 0.9);
  box-shadow: 0 14px 36px rgba(17, 24, 39, 0.06);
}

.service-card h3 {
  margin-top: 22px;
}

.service-card p {
  margin-bottom: 0;
  color: var(--muted);
}

.data-section {
  background: #ffffff;
}

.data-visual {
  min-height: 470px;
  padding: 26px;
  background:
    linear-gradient(135deg, rgba(18, 165, 148, 0.14), rgba(236, 106, 94, 0.12)),
    #162033;
  color: var(--white);
  box-shadow: var(--shadow);
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 34px;
}

.chart-header span {
  color: rgba(255, 255, 255, 0.72);
  font-weight: 800;
}

.chart-header strong {
  color: var(--amber);
  font-size: 26px;
}

.bars {
  height: 250px;
  display: flex;
  align-items: end;
  gap: 14px;
  padding: 22px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.bars span {
  flex: 1;
  min-width: 28px;
  background: linear-gradient(180deg, #70eadc, #f2b84b);
}

.data-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.data-badges span {
  padding: 9px 12px;
  color: rgba(255, 255, 255, 0.86);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.advantage-list {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.advantage-list div {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #253247;
  font-weight: 800;
}

.advantage-list svg {
  width: 22px;
  height: 22px;
  color: var(--teal-dark);
  flex: 0 0 auto;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.scenario-grid div {
  min-height: 94px;
  display: flex;
  align-items: center;
  padding: 22px;
  color: #243044;
  background: #ffffff;
  border-left: 5px solid var(--coral);
  font-weight: 900;
  box-shadow: 0 12px 30px rgba(17, 24, 39, 0.05);
}

.process-section {
  background: #ffffff;
}

.process-line {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.process-line div {
  min-height: 210px;
  padding: 24px;
  border: 1px solid var(--line);
  background: #f8fafc;
}

.process-line span {
  display: block;
  margin-bottom: 24px;
  color: var(--coral);
  font-size: 28px;
  font-weight: 900;
}

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

.process-line p {
  margin-bottom: 0;
  color: var(--muted);
}

.about-section {
  color: var(--white);
  background: var(--navy);
}

.about-layout h2 {
  color: #ffffff;
}

.about-layout p {
  color: rgba(255, 255, 255, 0.78);
}

.contact-section {
  padding: 78px 0;
  background: #0f766e;
  color: var(--white);
}

.contact-layout h2 {
  margin-bottom: 12px;
}

.contact-layout p {
  max-width: 760px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.82);
}

.contact-button {
  justify-self: end;
  max-width: 100%;
  color: #062b27;
  background: #ffffff;
}

.qr-modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 24px;
}

.qr-modal[hidden] {
  display: none;
}

.qr-backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(9, 16, 29, 0.66);
  cursor: pointer;
}

.qr-dialog {
  position: relative;
  width: min(430px, 100%);
  padding: 28px;
  background: #ffffff;
  box-shadow: 0 28px 90px rgba(9, 16, 29, 0.34);
}

.qr-dialog h2 {
  margin: 6px 44px 18px 0;
  font-size: 28px;
}

.qr-dialog img {
  width: 100%;
  border: 1px solid var(--line);
}

.qr-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  background: #eef3f7;
  border: 0;
  cursor: pointer;
}

.qr-close svg {
  width: 20px;
  height: 20px;
}

.site-footer {
  background: #0a1222;
  color: rgba(255, 255, 255, 0.72);
}

.footer-inner {
  min-height: 94px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.footer-inner img {
  width: 160px;
  filter: brightness(0) invert(1);
}

@media (max-width: 960px) {
  .site-header {
    gap: 14px;
  }

  .nav-links {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid var(--line);
    box-shadow: 0 20px 40px rgba(17, 24, 39, 0.12);
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links a {
    padding: 12px;
  }

  .header-action {
    margin-left: auto;
  }

  .menu-button {
    display: inline-flex;
  }

  .hero {
    min-height: auto;
  }

  .hero-content,
  .split,
  .data-layout,
  .about-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .commerce-panel,
  .contact-button {
    justify-self: stretch;
  }

  .platform-inner,
  .service-grid,
  .scenario-grid,
  .process-line {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 28px, 1160px);
  }

  .site-header {
    top: 10px;
    width: calc(100% - 20px);
    height: 62px;
    padding: 0 10px 0 14px;
  }

  .brand img {
    width: 132px;
  }

  .header-action span {
    display: none;
  }

  .hero {
    padding-top: 112px;
  }

  h1 {
    font-size: 42px;
  }

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

  .primary-button,
  .secondary-button {
    width: 100%;
  }

  .metric-grid,
  .platform-inner,
  .service-grid,
  .scenario-grid,
  .process-line {
    grid-template-columns: 1fr;
  }

  .platform-inner span {
    min-height: 56px;
  }

  .section {
    padding: 72px 0;
  }

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

  .bars {
    height: 205px;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
  }

  .qr-dialog {
    padding: 22px;
  }

  .qr-dialog h2 {
    font-size: 24px;
  }
}