:root {
  --bg: #020b14;
  --panel: #061522;
  --cyan: #12d8e4;
  --cyan-2: #2af1ef;
  --ink: #101820;
  --muted: #5e6a75;
  --line: #dfe5ea;
  --white: #ffffff;
  --max: 1280px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  letter-spacing: 0;
}

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

button,
input,
textarea {
  font: inherit;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 30;
  display: flex;
  align-items: center;
  height: 86px;
  padding: 0 max(36px, calc((100vw - var(--max)) / 2));
  color: #fff;
  background: rgba(2, 11, 20, 0.82);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(14px);
  transition: background 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  background: rgba(2, 11, 20, 0.96);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.18);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 250px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 56px;
  height: 38px;
  color: var(--cyan);
}

.brand-mark svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 3.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.brand-text strong {
  display: block;
  color: #fff;
  font-size: 16px;
  line-height: 1.1;
  font-weight: 900;
}

.brand-text em {
  display: block;
  max-width: 210px;
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 11px;
  line-height: 1.25;
  font-style: normal;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 34px;
  flex: 1;
  font-size: 13px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.92);
}

.nav a {
  position: relative;
  padding: 34px 0;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 24px;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.nav a:hover::after {
  transform: scaleX(1);
}

.header-cta,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 24px;
  border: 1px solid var(--cyan);
  border-radius: 0;
  background: transparent;
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}

.header-cta {
  min-width: 118px;
}

.btn.primary {
  min-width: 190px;
  color: #00131a;
  background: linear-gradient(90deg, var(--cyan-2), #15c8d8);
}

.btn.secondary {
  min-width: 190px;
  border-color: rgba(255, 255, 255, 0.52);
}

.btn::after {
  content: "";
  width: 13px;
  height: 8px;
  margin-left: 18px;
  background:
    linear-gradient(currentColor, currentColor) 0 50% / 12px 1px,
    linear-gradient(45deg, transparent 45%, currentColor 46% 54%, transparent 55%) 5px 0 / 8px 8px;
  background-repeat: no-repeat;
}

.header-cta:hover,
.btn:hover {
  transform: translateY(-2px);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  margin-left: auto;
  border: 0;
  color: #fff;
  background: transparent;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  margin: 6px auto;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: 682px;
  padding: 142px max(36px, calc((100vw - var(--max)) / 2)) 58px;
  color: #fff;
  overflow: hidden;
  background: #020b14;
}

.hero-bg {
  position: absolute;
  inset: 86px 0 0 0;
  opacity: 0.98;
}

.hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background:
    linear-gradient(90deg, #020b14 0%, rgba(2, 11, 20, 0.92) 10%, rgba(2, 11, 20, 0.46) 38%, rgba(2, 11, 20, 0.08) 64%, transparent 100%),
    linear-gradient(180deg, rgba(2, 11, 20, 0.18), transparent 55%, rgba(2, 11, 20, 0.18));
  pointer-events: none;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
  filter: saturate(0.92) contrast(1.08) brightness(0.9);
}

.hero-scan {
  position: absolute;
  z-index: 3;
  inset: 0;
  background: linear-gradient(100deg, transparent 0 48%, rgba(42, 241, 239, 0.18) 50%, transparent 53% 100%);
  transform: translateX(-58%);
  animation: heroScan 6s ease-in-out infinite;
  pointer-events: none;
}

.hero-data-lines,
.hero-sparks {
  position: absolute;
  z-index: 4;
  inset: 0;
  pointer-events: none;
}

.hero-data-lines i {
  position: absolute;
  top: 0;
  width: 1px;
  height: 145px;
  background: linear-gradient(180deg, transparent, rgba(42, 241, 239, 0.68), transparent);
  opacity: 0;
  animation: dataDrop 3.8s ease-in-out infinite;
}

.hero-data-lines i:nth-child(1) { left: 42%; animation-delay: .1s; }
.hero-data-lines i:nth-child(2) { left: 50%; animation-delay: 1.2s; height: 190px; }
.hero-data-lines i:nth-child(3) { left: 57%; animation-delay: .7s; }
.hero-data-lines i:nth-child(4) { left: 68%; animation-delay: 1.8s; height: 125px; }
.hero-data-lines i:nth-child(5) { left: 78%; animation-delay: 2.4s; height: 170px; }
.hero-data-lines i:nth-child(6) { left: 88%; animation-delay: .4s; }

.hero-sparks span {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(42, 241, 239, 0.86);
  box-shadow: 0 0 16px rgba(42, 241, 239, 0.86);
  animation: sparkPulse 2.6s ease-in-out infinite;
  animation-delay: var(--d);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 86px 0 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 78px 78px;
  mask-image: linear-gradient(100deg, transparent 18%, #000 80%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 560px;
}

.hero h1 {
  margin: 0;
  font-size: clamp(42px, 4.3vw, 56px);
  line-height: 1;
  font-weight: 900;
}

.hero h2 {
  margin: 24px 0 0;
  font-size: clamp(30px, 3.4vw, 44px);
  line-height: 1.12;
  font-weight: 900;
}

.hero p {
  max-width: 535px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 15px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  margin-top: 36px;
}

.hero-proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  max-width: 720px;
  margin: 54px 0 0;
  padding: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.24);
  border-bottom: 1px solid rgba(255, 255, 255, 0.24);
}

.hero-proof div {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 4px 16px;
  padding: 24px 28px 24px 0;
  border-right: 1px solid rgba(255, 255, 255, 0.22);
}

.hero-proof div:last-child {
  border-right: 0;
}

.hero-proof dt {
  color: #fff;
  font-size: 15px;
  font-weight: 800;
}

.hero-proof dd {
  grid-column: 2;
  margin: 0;
  color: rgba(255, 255, 255, 0.56);
  font-size: 13px;
}

.proof-icon,
.scenario-icon,
.quality-icon {
  width: 30px;
  height: 30px;
  color: var(--cyan);
  position: relative;
  display: inline-block;
}

.proof-icon::before,
.scenario-icon::before,
.quality-icon::before {
  content: "";
  position: absolute;
  inset: 4px;
  border: 2px solid currentColor;
}

.proof-icon.trend::before {
  border-width: 0 0 2px 2px;
  transform: skew(-16deg);
}

.proof-icon.trend::after {
  content: "";
  position: absolute;
  left: 7px;
  top: 7px;
  width: 20px;
  height: 14px;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  transform: rotate(-20deg);
}

.proof-icon.cube::before,
.proof-icon.shield::before {
  transform: rotate(45deg);
}

.proof-icon.shield::before {
  border-radius: 2px 2px 10px 10px;
}

.hero-index {
  position: absolute;
  z-index: 3;
  right: max(34px, 3.8vw);
  top: 50%;
  display: grid;
  gap: 28px;
  color: rgba(255, 255, 255, 0.58);
  font-weight: 800;
}

.hero-index span:first-child {
  color: #fff;
}

.hero-index span:first-child::before {
  content: "";
  display: inline-block;
  width: 30px;
  height: 2px;
  margin-right: 10px;
  vertical-align: middle;
  background: var(--cyan);
}

.scroll-cue {
  position: absolute;
  z-index: 3;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.48);
  font-size: 12px;
}

.scroll-cue::after {
  content: "";
  display: block;
  width: 10px;
  height: 10px;
  margin: 8px auto 0;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: rotate(45deg);
}

.section {
  padding: 72px max(36px, calc((100vw - var(--max)) / 2));
}

.section-head {
  margin-bottom: 42px;
}

.section-head h2,
.pricing-title h2 {
  margin: 0;
  color: var(--ink);
  font-size: 36px;
  line-height: 1.2;
  font-weight: 900;
}

.section-head p,
.pricing-title p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

.service-pricing {
  background: #fff;
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.pricing-grid > * {
  min-height: 150px;
  padding: 34px 28px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.pricing-title {
  grid-row: span 1;
}

.pricing-grid article {
  text-align: center;
}

.pricing-grid h3 {
  margin: 0 0 22px;
  font-size: 18px;
  font-weight: 900;
}

.pricing-grid p {
  margin: 10px 0;
  color: var(--muted);
  font-size: 14px;
}

.pricing-method {
  display: flex;
  align-items: center;
  font-size: 17px;
  font-weight: 900;
}

.pricing-fee {
  text-align: center;
}

.pricing-fee strong,
.pricing-fee span {
  display: block;
}

.pricing-fee strong {
  margin-top: 6px;
  font-size: 16px;
}

.pricing-fee span {
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
}

.pricing-note {
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.workflow,
.assurance {
  position: relative;
  padding: 70px max(36px, calc((100vw - var(--max)) / 2));
  color: #fff;
  overflow: hidden;
  background:
    linear-gradient(110deg, rgba(18, 216, 228, 0.09), transparent 38%),
    var(--bg);
}

.workflow::after,
.assurance::after {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  width: 48%;
  height: 100%;
  background:
    linear-gradient(135deg, transparent 45%, rgba(18, 216, 228, 0.3) 46% 47%, transparent 48%),
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 220px 110px, 42px 42px, 42px 42px;
  opacity: 0.7;
  pointer-events: none;
}

.section-head.dark,
.timeline,
.quality-grid {
  position: relative;
  z-index: 2;
}

.section-head.dark h2 {
  color: #fff;
}

.section-head.dark p {
  color: rgba(255, 255, 255, 0.58);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  margin: 46px 0 0;
  padding: 0;
  list-style: none;
}

.timeline li {
  min-height: 130px;
  padding: 0 26px 0 0;
  border-right: 1px solid rgba(255, 255, 255, 0.24);
}

.timeline li + li {
  padding-left: 26px;
}

.timeline li:last-child {
  border-right: 0;
}

.timeline span {
  color: var(--cyan);
  font-size: 26px;
  font-weight: 900;
}

.timeline strong {
  display: block;
  margin-top: 10px;
  color: #fff;
  font-size: 16px;
}

.timeline strong::after {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-left: 24px;
  border-top: 1px solid var(--cyan);
  border-right: 1px solid var(--cyan);
  transform: rotate(45deg);
}

.timeline p {
  margin: 14px 0 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
  line-height: 1.7;
}

.scenarios {
  background: #fff;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
}

.scenario-grid article {
  min-height: 180px;
  padding: 22px 22px 0;
  text-align: center;
  border-right: 1px solid var(--line);
}

.scenario-grid article:last-child {
  border-right: 0;
}

.scenario-icon {
  width: 44px;
  height: 44px;
  color: #496171;
}

.scenario-icon.blocks::before,
.scenario-icon.bank::before,
.scenario-icon.bag::before,
.scenario-icon.medical::before,
.scenario-icon.city::before {
  border-radius: 2px;
}

.scenario-icon.more::before {
  border: 0;
  box-shadow: 8px 14px 0 currentColor, 20px 14px 0 currentColor, 32px 14px 0 currentColor;
}

.scenario-grid h3 {
  margin: 18px 0 10px;
  font-size: 17px;
  font-weight: 900;
}

.scenario-grid p {
  margin: 0 auto;
  max-width: 150px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
}

.quality-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 54px;
}

.quality-grid article {
  min-height: 140px;
  padding-right: 34px;
  border-right: 1px solid rgba(255, 255, 255, 0.22);
}

.quality-grid article + article {
  padding-left: 34px;
}

.quality-grid article:last-child {
  border-right: 0;
}

.quality-icon {
  color: var(--cyan);
}

.quality-icon::before {
  border-radius: 50%;
}

.quality-grid h3 {
  margin: 20px 0 10px;
  color: #fff;
  font-size: 18px;
}

.quality-grid p {
  margin: 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
  line-height: 1.8;
}

.contact {
  position: relative;
  padding: 72px max(36px, calc((100vw - var(--max)) / 2));
  background:
    linear-gradient(140deg, transparent 70%, rgba(18, 216, 228, 0.09)),
    #fff;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 420px;
  gap: 86px;
  align-items: start;
}

.contact-form {
  display: grid;
  gap: 18px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid #cfd8df;
  border-radius: 0;
  background: #fff;
  color: var(--ink);
  padding: 14px 16px;
  outline: none;
}

.contact-form textarea {
  resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(18, 216, 228, 0.12);
}

.contact-form .btn {
  justify-self: start;
  border-color: var(--cyan);
  color: #00131a;
}

.form-result {
  min-height: 22px;
  margin: 0;
  color: #0b8790;
  font-weight: 800;
}

.contact-info {
  padding-left: 64px;
  border-left: 1px solid #cfd8df;
}

.contact-info h3 {
  margin: 0 0 24px;
  font-size: 18px;
}

.contact-info p {
  display: grid;
  gap: 8px;
  margin: 0 0 24px;
  color: var(--muted);
  line-height: 1.7;
}

.contact-info strong {
  color: var(--ink);
}

.about-strip {
  padding: 28px max(36px, calc((100vw - var(--max)) / 2));
  color: rgba(255, 255, 255, 0.7);
  background: var(--bg);
}

.about-strip p {
  margin: 0;
  max-width: 760px;
  line-height: 1.8;
}

.footer {
  color: rgba(255, 255, 255, 0.72);
  background: #020912;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 0.85fr) 1.25fr;
  gap: 48px;
  padding: 52px max(36px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer .brand {
  align-self: start;
  min-width: 0;
}

.footer h4 {
  margin: 0 0 20px;
  color: #fff;
  font-size: 15px;
}

.footer a {
  display: block;
  margin: 10px 0;
  font-size: 13px;
}

.qr {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 20px;
  align-items: center;
}

.qr img {
  width: 88px;
  height: 88px;
  display: block;
  padding: 6px;
  object-fit: contain;
  background: #fff;
}

.qr p {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 18px max(36px, calc((100vw - var(--max)) / 2));
}

.footer-bottom p {
  margin: 0;
  font-size: 12px;
}

.footer-bottom div {
  display: flex;
  gap: 24px;
}

.footer-bottom a {
  margin: 0;
  font-size: 12px;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms ease var(--delay, 0ms), transform 600ms ease var(--delay, 0ms);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes circuitPulse {
  0%,
  100% {
    opacity: 0.28;
    transform: scale(0.86);
  }
  42% {
    opacity: 1;
    transform: scale(1.18);
  }
  66% {
    opacity: 0.58;
    transform: scale(0.96);
  }
}

@keyframes heroScan {
  0%,
  24% {
    opacity: 0;
    transform: translateX(-58%);
  }
  42% {
    opacity: 0.8;
  }
  78% {
    opacity: 0.32;
  }
  100% {
    opacity: 0;
    transform: translateX(58%);
  }
}

@keyframes dataDrop {
  0%,
  100% {
    opacity: 0;
    transform: translateY(-60px);
  }
  38% {
    opacity: 0.72;
  }
  78% {
    opacity: 0.18;
    transform: translateY(90px);
  }
}

@keyframes sparkPulse {
  0%,
  100% {
    opacity: 0.18;
    transform: scale(0.72);
  }
  45% {
    opacity: 1;
    transform: scale(1.22);
  }
  70% {
    opacity: 0.48;
    transform: scale(0.9);
  }
}

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

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

@media (max-width: 1120px) {
  .site-header {
    height: auto;
    min-height: 72px;
  }

  .nav,
  .header-cta {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .site-header.is-open {
    align-items: flex-start;
    flex-wrap: wrap;
    padding-top: 14px;
    padding-bottom: 16px;
  }

  .site-header.is-open .nav {
    order: 3;
    display: grid;
    width: 100%;
    gap: 0;
    margin-top: 14px;
  }

  .site-header.is-open .nav a {
    padding: 14px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
  }

  .hero-bg {
    left: 0;
  }

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

  .pricing-title,
  .pricing-method {
    grid-column: 1 / -1;
  }

  .timeline,
  .scenario-grid,
  .quality-grid,
  .footer-main {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .contact-info {
    padding-left: 0;
    border-left: 0;
  }
}

@media (max-width: 680px) {
  .site-header,
  .hero,
  .section,
  .workflow,
  .assurance,
  .contact,
  .about-strip,
  .footer-main,
  .footer-bottom {
    padding-left: 20px;
    padding-right: 20px;
  }

  .brand {
    min-width: 0;
  }

  .brand-mark {
    width: 48px;
  }

  .brand-text strong {
    font-size: 14px;
  }

  .brand-text em {
    max-width: 180px;
    font-size: 10px;
  }

  .hero {
    min-height: 720px;
    padding-top: 128px;
  }

  .hero-bg {
    inset: 72px -18% 0 0;
    opacity: 0.48;
  }

  .hero h1 {
    font-size: 42px;
  }

  .hero h2 {
    font-size: 34px;
  }

  .hero p {
    font-size: 15px;
  }

  .hero-actions,
  .form-row {
    grid-template-columns: 1fr;
    display: grid;
    gap: 16px;
  }

  .hero-proof,
  .pricing-grid,
  .timeline,
  .scenario-grid,
  .quality-grid,
  .footer-main {
    grid-template-columns: 1fr;
  }

  .hero-proof div,
  .timeline li,
  .quality-grid article,
  .scenario-grid article {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  }

  .scenario-grid article {
    border-bottom-color: var(--line);
  }

  .timeline li + li,
  .quality-grid article + article {
    padding-left: 0;
    padding-top: 22px;
  }

  .hero-index,
  .scroll-cue {
    display: none;
  }

  .footer-bottom {
    flex-direction: column;
  }
}