:root {
  --blue: #0f7bff;
  --blue-deep: #075deb;
  --ink: #141b2e;
  --muted: #6d7484;
  --line: #d9e7f8;
  --soft-line: #e8eef6;
  --panel: #ffffff;
  --page: #f9fcff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 74px;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background:
    radial-gradient(circle at 72% 11%, rgba(60, 142, 255, 0.14), transparent 28%),
    radial-gradient(circle at 44% 66%, rgba(46, 125, 255, 0.08), transparent 24%),
    linear-gradient(180deg, #fff 0%, var(--page) 58%, #fff 100%);
}

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

img,
svg {
  display: block;
}

.container {
  width: min(100% - 80px, 1160px);
  margin: 0 auto;
}

.site-header {
  height: 62px;
  border-bottom: 1px solid var(--soft-line);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  min-width: 0;
  white-space: nowrap;
}

.brand-logo {
  flex: 0 0 auto;
  width: 62px;
  height: auto;
  margin-right: 10px;
  object-fit: contain;
}

.footer-brand-logo {
  width: 56px;
  margin-right: 0;
}

.brand-name {
  font-size: 18px;
  font-weight: 700;
}

.brand-divider {
  width: 1px;
  height: 16px;
  margin: 0 9px;
  background: #cfd7e5;
}

.brand-desc {
  color: #2f3542;
  font-size: 13px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 31px;
  margin-left: auto;
  font-size: 14px;
}

.site-nav a {
  position: relative;
  display: grid;
  place-items: center;
  height: 62px;
  color: #1f2430;
}

.site-nav a.active {
  color: var(--blue-deep);
}

.site-nav a.active::after {
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 28px;
  height: 3px;
  border-radius: 999px 999px 0 0;
  background: var(--blue);
  content: "";
  transform: translateX(-50%);
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 17px;
  margin-left: 18px;
}

.tool-link {
  display: grid;
  width: 25px;
  height: 25px;
  place-items: center;
  color: #070b12;
}

.tool-link svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

.hero {
  overflow: hidden;
}

.hero-stage {
  position: relative;
}

.hero-slide {
  display: none;
}

.hero-slide.is-active {
  display: block;
  animation: heroFade 0.38s ease both;
}

@keyframes heroFade {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.hero-inner {
  position: relative;
  min-height: 376px;
  padding-top: 68px;
}

.hero-copy {
  position: relative;
  z-index: 2;
  width: 45%;
  min-width: 420px;
}

.eyebrow {
  margin: 0 0 22px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 500;
}

.hero h1,
.hero-title {
  margin: 0;
  color: #172033;
  font-size: clamp(40px, 5vw, 57px);
  font-weight: 850;
  letter-spacing: 0;
  line-height: 1.34;
}

.hero-title {
  display: block;
}

.hero-subtitle {
  margin: 22px 0 0;
  color: #121722;
  font-size: 17px;
  font-weight: 500;
  line-height: 1.7;
  white-space: nowrap;
}

.hero-visual {
  position: absolute;
  top: 8px;
  right: -30px;
  z-index: 1;
  width: clamp(552px, 54vw, 650px);
  pointer-events: none;
}

.hero-visual img {
  width: 100%;
  height: auto;
}

.slide-visual {
  top: -26px;
  right: -105px;
  width: clamp(680px, 68vw, 850px);
}

.slide-visual img {
  width: 100%;
}

.tm-visual {
  top: -30px;
  right: -92px;
  width: clamp(650px, 66vw, 820px);
}

.highlight-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 13px;
  margin-top: 6px;
}

.highlight-card,
.service-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 8px 24px rgba(18, 99, 205, 0.04);
}

.highlight-card {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
  min-height: 130px;
  overflow: hidden;
  padding: 31px 20px 25px;
  gap: 17px;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease, background 0.25s ease;
  appearance: none;
}

.tab-progress {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  overflow: hidden;
  background: rgba(15, 123, 255, 0.12);
  opacity: 0;
}

.tab-progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--blue);
  transform: scaleX(var(--slide-progress, 0));
  transform-origin: left center;
}

.highlight-card.is-active .tab-progress {
  opacity: 1;
}

.highlight-card.is-active {
  border-color: rgba(15, 123, 255, 0.58);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.97) 0%, rgba(241, 248, 255, 0.96) 100%);
  box-shadow: 0 13px 30px rgba(15, 123, 255, 0.12);
  transform: translateY(-2px);
}

.highlight-card.is-active .icon-box {
  border-color: rgba(15, 123, 255, 0.32);
  background: linear-gradient(135deg, #fff 0%, #edf6ff 100%);
}

.highlight-card:focus-visible {
  outline: 3px solid rgba(15, 123, 255, 0.25);
  outline-offset: 3px;
}

.highlight-card h2,
.service-card h2 {
  margin: 0;
  color: #202636;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.35;
}

.highlight-card p,
.service-card p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.icon-box {
  display: grid;
  flex: 0 0 68px;
  width: 68px;
  height: 68px;
  place-items: center;
  border: 1px solid #dbe8fa;
  border-radius: 14px;
  background: linear-gradient(135deg, #fbfdff 0%, #f7fbff 100%);
}

.icon-box svg,
.service-icon svg {
  width: 44px;
  height: 44px;
  fill: none;
  stroke: var(--blue);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 3;
}

.icon-box.planet svg {
  fill: none;
  stroke: var(--blue);
}

.brand-section {
  margin-top: 30px;
}

.section-heading {
  display: flex;
  align-items: flex-end;
  gap: 14px;
  min-height: 30px;
}

.section-heading::after {
  flex: 1;
  height: 1px;
  background: var(--soft-line);
  content: "";
  transform: translateY(-9px);
}

.section-heading h2 {
  position: relative;
  margin: 0;
  padding-bottom: 10px;
  color: #1f2636;
  font-size: 21px;
  font-weight: 500;
  line-height: 1.2;
}

.section-heading h2::after {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 29px;
  height: 2px;
  border-radius: 999px;
  background: var(--blue);
  content: "";
}

.logo-marquee {
  position: relative;
  display: grid;
  gap: 10px;
  margin-top: 16px;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 46px, #000 calc(100% - 46px), transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0, #000 46px, #000 calc(100% - 46px), transparent 100%);
}

.logo-marquee-row {
  overflow: hidden;
}

.logo-track {
  display: flex;
  width: max-content;
  animation: logoScrollLeft var(--marquee-duration, 38s) linear infinite;
  will-change: transform;
}

.logo-marquee-row[data-direction="right"] .logo-track {
  animation-name: logoScrollRight;
}

.logo-marquee-row:nth-child(1) .logo-track {
  animation-delay: -10s;
}

.logo-marquee-row:nth-child(2) .logo-track {
  animation-delay: -22s;
}

.logo-marquee-row:nth-child(3) .logo-track {
  animation-delay: -16s;
}

.logo-marquee:hover .logo-track {
  animation-play-state: paused;
}

.logo-sequence {
  display: flex;
  gap: 12px;
  padding-right: 12px;
}

.logo-icon {
  flex: 0 0 74px;
  width: 74px;
  height: 74px;
  overflow: hidden;
  border: 1px solid var(--soft-line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 8px 22px rgba(22, 89, 171, 0.05);
}

.logo-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@keyframes logoScrollLeft {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(-50%);
  }
}

@keyframes logoScrollRight {
  from {
    transform: translateX(-50%);
  }

  to {
    transform: translateX(0);
  }
}

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

  .hero-slide.is-active {
    animation: none;
  }

  .logo-track {
    animation-play-state: paused;
  }
}

.usage-section {
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  align-items: center;
  gap: 26px;
  margin-top: 28px;
}

.section-heading.compact {
  align-items: flex-start;
  margin-bottom: 22px;
}

.section-heading.compact::after {
  display: none;
}

.usage-copy {
  align-self: start;
  padding-top: 8px;
}

.usage-copy p {
  margin: 0 0 13px;
  color: #333947;
  font-size: 15px;
  line-height: 1.8;
}

.usage-copy strong {
  color: var(--blue);
  font-size: 20px;
  font-weight: 500;
}

.map-panel {
  display: flex;
  justify-content: flex-end;
}

.map-panel img {
  width: min(100%, 568px);
  height: auto;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 13px;
  margin-top: 10px;
  margin-bottom: 24px;
}

.service-card {
  display: grid;
  grid-template-columns: 70px 1fr;
  align-items: center;
  min-height: 122px;
  padding: 24px 23px;
  gap: 9px;
}

.service-icon {
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
}

.service-icon.shield svg,
.service-icon.headset svg,
.service-icon.trend svg {
  fill: none;
  stroke: var(--blue);
}

.site-footer {
  border-top: 1px solid var(--soft-line);
  background: rgba(255, 255, 255, 0.76);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.25fr 0.62fr 0.75fr 1.45fr;
  gap: 48px;
  padding: 19px 0 0;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 9px;
}

.footer-logo strong {
  font-size: 22px;
}

.footer-slogan {
  margin-top: 10px;
  color: #222734;
}

.footer-brand p,
.footer-links a,
.footer-contact p,
.copyright {
  color: #687182;
  font-size: 14px;
  line-height: 2;
}

.footer-brand p:last-child {
  margin-top: 30px;
  max-width: 300px;
}

.footer-links,
.footer-contact {
  padding-top: 5px;
}

.footer-links h3,
.footer-contact h3 {
  margin: 0 0 8px;
  color: #353b48;
  font-size: 15px;
  font-weight: 500;
}

.footer-links a {
  display: block;
}

.footer-contact p {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  line-height: 2.2;
}

.footer-contact svg {
  flex: 0 0 16px;
  width: 16px;
  height: 16px;
  fill: #2a303a;
}

.qr-row {
  display: flex;
  gap: 45px;
  margin-top: 10px;
  padding-left: 28px;
}

.qr-row figure {
  margin: 0;
  text-align: center;
}

.qr-row img {
  width: 61px;
  height: 60px;
  object-fit: cover;
}

.qr-row figcaption {
  margin-top: 6px;
  color: #6f7787;
  font-size: 13px;
}

.copyright {
  margin: 4px 0 0;
  padding-bottom: 15px;
  text-align: center;
  font-size: 12px;
}

@media (max-width: 960px) {
  .container {
    width: min(100% - 40px, 880px);
  }

  .brand-desc,
  .brand-divider {
    display: none;
  }

  .site-nav {
    gap: 18px;
  }

  .header-tools {
    margin-left: 0;
  }

  .hero-inner {
    min-height: auto;
    padding-top: 38px;
  }

  .hero-copy {
    width: 100%;
    min-width: 0;
  }

  .hero-subtitle {
    white-space: normal;
  }

  .hero-visual {
    position: relative;
    top: auto;
    right: auto;
    width: min(100%, 620px);
    margin: 18px auto 0;
  }

  .slide-visual,
  .tm-visual {
    width: min(100%, 680px);
  }

  .highlight-grid,
  .usage-section,
  .service-grid,
  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .logo-marquee {
    -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 28px, #000 calc(100% - 28px), transparent 100%);
    mask-image: linear-gradient(90deg, transparent 0, #000 28px, #000 calc(100% - 28px), transparent 100%);
  }

  .logo-icon {
    flex-basis: 66px;
    width: 66px;
    height: 66px;
  }

  .usage-section {
    align-items: start;
  }

  .map-panel {
    align-self: center;
  }
}

@media (max-width: 700px) {
  .site-header {
    height: auto;
  }

  .header-inner {
    flex-wrap: wrap;
    gap: 10px 16px;
    padding: 12px 0 0;
  }

  .site-nav {
    order: 3;
    width: 100%;
    justify-content: flex-start;
    gap: 22px;
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .site-nav::-webkit-scrollbar {
    display: none;
  }

  .site-nav a {
    flex: 0 0 auto;
    height: 44px;
    min-width: max-content;
  }

  .header-tools {
    margin-left: 0;
  }

  .hero h1,
  .hero-title {
    font-size: 39px;
  }

  .highlight-grid,
  .usage-section,
  .service-grid,
  .footer-inner {
    grid-template-columns: 1fr;
  }

  .logo-sequence {
    gap: 9px;
    padding-right: 9px;
  }

  .logo-icon {
    flex-basis: 58px;
    width: 58px;
    height: 58px;
  }

  .map-panel {
    justify-content: center;
  }

  .usage-copy {
    padding-top: 0;
  }

  .usage-copy p {
    font-size: 14px;
  }

  .map-panel img {
    width: min(100%, 520px);
  }

  .footer-inner {
    gap: 22px;
  }

  .footer-brand p:last-child {
    margin-top: 16px;
  }

  .qr-row {
    gap: 24px;
    padding-left: 0;
  }
}

@media (max-width: 430px) {
  .container {
    width: min(100% - 28px, 390px);
  }

  .brand-logo {
    width: 50px;
  }

  .brand-name {
    font-size: 16px;
  }

  .header-tools {
    gap: 12px;
  }

  .hero-inner {
    padding-top: 30px;
  }

  .eyebrow {
    margin-bottom: 14px;
    font-size: 13px;
    line-height: 1.7;
  }

  .hero h1,
  .hero-title {
    font-size: 32px;
    line-height: 1.28;
  }

  .hero-subtitle {
    margin-top: 16px;
    font-size: 15px;
  }

  .highlight-card,
  .service-card {
    padding: 20px 15px;
  }

  .highlight-card {
    min-height: 116px;
    gap: 13px;
  }

  .highlight-card h2,
  .service-card h2 {
    font-size: 17px;
  }

  .highlight-card p,
  .service-card p {
    font-size: 13px;
  }

  .icon-box {
    flex-basis: 58px;
    width: 58px;
    height: 58px;
  }

  .icon-box svg {
    width: 36px;
    height: 36px;
  }

  .service-card {
    grid-template-columns: 60px 1fr;
  }

  .section-heading h2 {
    font-size: 19px;
  }

  .service-grid {
    gap: 10px;
  }

  .footer-logo strong {
    font-size: 20px;
  }

  .footer-brand p,
  .footer-links a,
  .footer-contact p {
    font-size: 13px;
  }
}