:root {
  --bg: #ffffff;
  --surface: #ffffff;
  --surface-soft: #f6f8fb;
  --surface-muted: #eef2f7;
  --ink: #111318;
  --ink-soft: #5d6573;
  --ink-muted: #8a93a1;
  --line: #dfe3ea;
  --line-soft: #edf0f5;
  --dark: #0d0f12;
  --dark-elevated: #17191e;
  --dark-card: #202227;
  --on-dark: #ffffff;
  --on-dark-soft: #b7beca;
  --blue: #0052ff;
  --blue-hover: #164dca;
  --green: #14a46c;
  --radius: 18px;
  --container: 1200px;
  --shadow-card: 0 24px 70px rgba(17, 19, 24, 0.09);
  --shadow-soft: 0 18px 50px rgba(17, 19, 24, 0.08);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  font-family:
    "Noto Sans SC",
    "Microsoft YaHei",
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 1120px;
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: inherit;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
svg,
iframe {
  display: block;
}

img {
  max-width: 100%;
}

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

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.site-header {
  position: fixed;
  z-index: 50;
  top: 0;
  right: 0;
  left: 0;
  height: 78px;
  border-bottom: 1px solid rgba(223, 227, 234, 0.8);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
}

.nav-shell {
  display: flex;
  width: min(var(--container), calc(100% - 64px));
  height: 100%;
  align-items: center;
  justify-content: flex-start;
  gap: 48px;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  width: 32px;
  height: 32px;
  overflow: hidden;
  place-items: center;
}

.brand-mark img {
  width: 28px;
  height: 28px;
  object-fit: cover;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 34px;
  color: #1f2530;
  font-size: 15px;
  font-weight: 500;
}

.site-nav a {
  position: relative;
  padding: 8px 0;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 2px;
  border-radius: 99px;
  background: var(--ink);
  content: "";
  opacity: 0;
  transform: scaleX(0.5);
  transition:
    transform 180ms var(--ease),
    opacity 180ms var(--ease);
}

.site-nav a:hover::after,
.site-nav a.is-active::after {
  opacity: 1;
  transform: scaleX(1);
}

.main {
  padding-top: 78px;
}

.container {
  width: min(var(--container), calc(100% - 96px));
  margin: 0 auto;
}

.hero-reserved {
  position: relative;
  height: 720px;
  overflow: hidden;
  background: linear-gradient(120deg, #f8fbff 0%, #ffffff 48%, #f7f4fb 100%);
}

.hero-reserved.hero-dark {
  background: #000000;
}

.hero-scene {
  width: 100%;
  height: 100%;
  border: 0;
}

.hero-fallback {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  pointer-events: none;
}

.hero-fallback img {
  width: min(820px, 70vw);
  border-radius: 28px;
  opacity: 0.72;
}

.page-hero {
  display: grid;
  min-height: 900px;
  place-items: center;
  border-bottom: 1px solid var(--line-soft);
  background:
    radial-gradient(circle at 18% 24%, rgba(0, 82, 255, 0.09), transparent 34%),
    radial-gradient(circle at 78% 62%, rgba(255, 226, 161, 0.18), transparent 30%),
    linear-gradient(135deg, #f8fbff 0%, #ffffff 52%, #fbf8ff 100%);
  text-align: center;
}

.page-hero.compact {
  min-height: 720px;
}

.page-hero h1 {
  margin: 0;
  font-size: 54px;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.18;
}

.page-hero p {
  max-width: 720px;
  margin: 28px auto 0;
  color: var(--ink-soft);
  font-size: 18px;
  line-height: 1.8;
}

.section {
  padding: 112px 0;
}

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

.section-dark {
  background: var(--dark);
  color: var(--on-dark);
}

.section-heading {
  max-width: 860px;
  margin-bottom: 68px;
}

.section-heading.center {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 22px;
  color: var(--ink-muted);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-dark .eyebrow {
  color: var(--on-dark-soft);
}

.eyebrow::before {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--blue);
  content: "";
}

.section-heading h2,
.headline {
  margin: 0;
  font-size: 42px;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.22;
}

.section-heading p,
.lead {
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.85;
}

.section-dark .section-heading p,
.section-dark .lead {
  color: var(--on-dark-soft);
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0 24px;
  font-size: 14px;
  font-weight: 700;
  transition:
    transform 180ms var(--ease),
    background 180ms var(--ease),
    border-color 180ms var(--ease);
}

.button:hover {
  transform: translateY(-1px);
}

.button-dark {
  background: var(--ink);
  color: #ffffff;
}

.button-dark:hover {
  background: #252a33;
}

.button-blue {
  background: var(--blue);
  color: #ffffff;
}

.button-blue:hover {
  background: var(--blue-hover);
}

.button-light {
  border-color: rgba(255, 255, 255, 0.18);
  background: #ffffff;
  color: var(--ink);
}

.button-ghost {
  border-color: rgba(255, 255, 255, 0.18);
  color: #ffffff;
}

.home-carousel {
  padding: 42px 0 50px;
  background: #121419;
}

.carousel-frame {
  position: relative;
  overflow: hidden;
  border-radius: 26px;
  background: #080a0d;
  min-height: 320px;
}

.carousel-slide {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: 1fr 0.86fr;
  align-items: center;
  gap: 76px;
  padding: 48px 72px;
  opacity: 0;
  pointer-events: none;
  transform: translateX(28px);
  transition:
    transform 520ms var(--ease),
    opacity 420ms var(--ease);
}

.carousel-slide.is-active {
  position: relative;
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
}

.carousel-slide img {
  width: 100%;
  height: 220px;
  border-radius: 22px;
  object-fit: cover;
}

.carousel-copy h2 {
  margin: 0;
  color: #ffffff;
  font-size: 36px;
  font-weight: 700;
  line-height: 1.25;
}

.carousel-copy p {
  margin: 24px 0 28px;
  color: #c7ceda;
  font-size: 17px;
  line-height: 1.8;
}

.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 28px;
}

.carousel-dots {
  display: flex;
  gap: 10px;
  padding: 13px 20px;
  border-radius: 999px;
  background: #222631;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border: 0;
  border-radius: 999px;
  padding: 0;
  background: #3e4452;
}

.carousel-dot.is-active {
  width: 38px;
  background: #ffffff;
}

.carousel-arrows {
  display: flex;
  gap: 16px;
}

.carousel-arrow {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: #252936;
  color: #ffffff;
  font-size: 24px;
  transition: background 180ms var(--ease);
}

.carousel-arrow:hover {
  background: #343949;
}

.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 112px;
  padding: 84px 0;
}

.feature-row.reverse .feature-copy {
  order: 2;
}

.feature-row.reverse .feature-media {
  order: 1;
}

.feature-copy h2,
.feature-copy h3 {
  margin: 0;
  font-size: 32px;
  font-weight: 700;
  line-height: 1.35;
}

.feature-copy p {
  margin: 20px 0 28px;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.85;
}

.feature-media img {
  width: 100%;
  border-radius: 22px;
  object-fit: cover;
  box-shadow: var(--shadow-soft);
}

.quick-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.quick-card {
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: 18px;
  background: #ffffff;
  box-shadow: 0 12px 36px rgba(17, 19, 24, 0.04);
}

.quick-card img {
  width: 100%;
  height: 210px;
  object-fit: cover;
}

.quick-card-body {
  padding: 24px 28px 30px;
}

.quick-card h3 {
  margin: 0 0 12px;
  font-size: 20px;
}

.quick-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.7;
}

.contact-band {
  background: var(--surface-soft);
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.86fr 1fr;
  align-items: center;
  gap: 96px;
}

.check-list {
  display: grid;
  gap: 14px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
  color: var(--ink-soft);
  font-size: 15px;
}

.check-list li {
  position: relative;
  padding-left: 28px;
}

.check-list li::before {
  position: absolute;
  top: 4px;
  left: 0;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--green);
  content: "";
}

.section-dark .check-list {
  color: var(--on-dark-soft);
}

.form-card {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #ffffff;
  padding: 34px;
  box-shadow: var(--shadow-card);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form-field {
  display: grid;
  gap: 8px;
}

.form-field.wide {
  grid-column: 1 / -1;
}

.form-field span {
  color: #384152;
  font-size: 13px;
  font-weight: 700;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  border: 0;
  border-radius: 10px;
  background: #f6f7f9;
  color: var(--ink);
  outline: 0;
}

.form-field input,
.form-field select {
  height: 48px;
  padding: 0 16px;
}

.form-field textarea {
  min-height: 128px;
  resize: vertical;
  padding: 16px;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  box-shadow: 0 0 0 3px rgba(0, 82, 255, 0.14);
}

.form-submit {
  width: 100%;
  margin-top: 22px;
}

.form-note {
  margin: 16px 0 0;
  color: var(--ink-muted);
  font-size: 13px;
  text-align: center;
}

.form-message {
  display: none;
  margin-top: 16px;
  border-radius: 12px;
  background: #eef8f3;
  color: #0b7a4d;
  padding: 14px 16px;
  font-size: 14px;
  line-height: 1.6;
}

.form-message.is-visible {
  display: block;
}

.architecture {
  display: grid;
  gap: 32px;
}

.data-base {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  background: var(--dark-elevated);
  padding: 32px;
}

.module-tabs {
  display: flex;
  justify-content: center;
  gap: 18px;
  margin-bottom: 24px;
}

.module-tabs span {
  border-radius: 999px;
  background: #252832;
  color: #d7deea;
  padding: 10px 28px;
  font-size: 14px;
  font-weight: 700;
}

.base-pill {
  width: 460px;
  margin: 0 auto;
  border-radius: 999px;
  background: var(--blue);
  color: #ffffff;
  padding: 18px 40px;
  text-align: center;
  font-size: 18px;
  font-weight: 700;
}

.dark-card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.dark-card {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  background: var(--dark-elevated);
  padding: 30px;
}

.dark-card h3 {
  margin: 0 0 16px;
  color: #ffffff;
  font-size: 20px;
}

.dark-card p {
  margin: 0;
  color: var(--on-dark-soft);
  line-height: 1.8;
}

.wide-image img {
  width: 100%;
  border-radius: 0;
  box-shadow: var(--shadow-card);
}

.space-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.space-card {
  border-radius: 16px;
  background: #ffffff;
  padding: 0 0 28px;
  box-shadow: 0 16px 46px rgba(17, 19, 24, 0.08);
}

.space-card img {
  width: 100%;
  height: 190px;
  border-radius: 16px 16px 0 0;
  object-fit: cover;
}

.space-card h3 {
  margin: 24px 26px 14px;
  font-size: 20px;
}

.space-card ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0 26px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.55;
  list-style: none;
}

.smart-card {
  max-width: 580px;
  margin: 0 auto 64px;
  border: 1px solid var(--line-soft);
  border-radius: 18px;
  background:
    radial-gradient(circle at 20% 50%, rgba(0, 82, 255, 0.14), transparent 32%),
    radial-gradient(circle at 78% 40%, rgba(255, 105, 180, 0.18), transparent 34%),
    #ffffff;
  padding: 42px;
  box-shadow: var(--shadow-card);
}

.smart-card h3 {
  margin: 0 0 18px;
  font-size: 22px;
}

.smart-card p {
  color: var(--ink-soft);
  line-height: 1.8;
}

.smart-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px 46px;
}

.smart-item h3 {
  margin: 0 0 12px;
  font-size: 18px;
}

.smart-item p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
}

.traffic-layout {
  display: grid;
  grid-template-columns: 0.72fr 1fr;
  align-items: center;
  gap: 80px;
}

.traffic-stack {
  display: grid;
  gap: 36px;
}

.traffic-stack img {
  width: 100%;
  border-radius: 14px;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.18);
}

.process-grid,
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.process-card,
.stat-card {
  border: 1px solid var(--line-soft);
  border-radius: 16px;
  background: #ffffff;
  padding: 30px;
}

.process-card b,
.stat-card b {
  display: block;
  color: var(--blue);
  font-size: 18px;
  margin-bottom: 24px;
}

.process-card h3,
.stat-card h3 {
  margin: 0 0 14px;
  font-size: 21px;
}

.process-card p,
.stat-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
}

.stat-band {
  background: #13151a;
  color: #ffffff;
  padding: 32px 0;
}

.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}

.stat-strip strong {
  display: block;
  font-size: 36px;
  line-height: 1;
}

.stat-strip span {
  display: block;
  margin-top: 10px;
  color: #aeb6c4;
  font-size: 14px;
}

.logo-grid {
  display: grid;
  overflow: hidden;
  border: 1px solid #8d929c;
  grid-template-columns: repeat(4, 1fr);
}

.logo-cell {
  display: grid;
  height: 180px;
  place-items: center;
  border-right: 1px solid #8d929c;
  border-bottom: 1px solid #8d929c;
  background: #ffffff;
  padding: 30px;
}

.logo-cell:nth-child(4n) {
  border-right: 0;
}

.logo-cell:nth-last-child(-n + 4) {
  border-bottom: 0;
}

.logo-cell img {
  max-width: 100%;
  max-height: 76px;
  object-fit: contain;
}

.client-logos {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  align-items: center;
  gap: 42px 48px;
  margin-top: 58px;
}

.client-logos img {
  width: 100%;
  max-height: 72px;
  object-fit: contain;
}

.support-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 36px;
}

.support-card {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #ffffff;
  padding: 48px;
  min-height: 230px;
}

.support-card h2 {
  margin: 20px 0 16px;
  font-size: 24px;
}

.support-card p {
  margin: 0 0 28px;
  color: var(--ink-soft);
  line-height: 1.8;
}

.text-link {
  color: var(--blue);
  font-weight: 700;
}

.faq-layout {
  display: grid;
  grid-template-columns: 0.55fr 1fr;
  gap: 96px;
}

.faq-list {
  display: grid;
  gap: 0;
}

.faq-item {
  border-top: 1px solid var(--line);
}

.faq-item:last-child {
  border-bottom: 1px solid var(--line);
}

.faq-question {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  border: 0;
  background: transparent;
  padding: 24px 0;
  color: var(--ink);
  text-align: left;
  font-size: 17px;
  font-weight: 700;
}

.faq-question span:last-child {
  color: var(--ink-muted);
}

.faq-answer {
  display: none;
  max-width: 720px;
  margin: -8px 0 24px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
}

.faq-item.is-open .faq-answer {
  display: block;
}

.support-contact {
  display: grid;
  grid-template-columns: 1fr 0.72fr;
  gap: 96px;
  align-items: center;
}

.support-methods {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.support-method {
  border-radius: 16px;
  background: #121419;
  color: #ffffff;
  padding: 28px;
}

.support-method h3 {
  margin: 0 0 10px;
  font-size: 20px;
}

.support-method p {
  margin: 0 0 22px;
  color: #aeb6c4;
  line-height: 1.65;
}

.site-footer {
  overflow: hidden;
  border-radius: 24px 24px 0 0;
  background: #07090c;
  color: #ffffff;
  padding: 88px 0 54px;
}

.footer-cta {
  display: grid;
  grid-template-columns: 1fr 0.92fr;
  align-items: center;
  min-height: 224px;
  border-radius: 16px;
  background:
    linear-gradient(90deg, rgba(37, 39, 44, 0.98), rgba(37, 39, 44, 0.7)),
    url("assets/site/images/footer-cta.png") right center / auto 100% no-repeat;
  padding: 46px 58px;
}

.footer-cta h2 {
  margin: 0 0 28px;
  font-size: 34px;
  line-height: 1.25;
}

.footer-actions {
  display: flex;
  gap: 16px;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 0.7fr);
  gap: 76px;
  margin-top: 78px;
}

.footer-brand .brand {
  color: #ffffff;
}

.footer-brand .brand-mark img {
  filter: invert(1);
}

.footer-brand p {
  color: #b6becb;
  margin: 18px 0 0;
  line-height: 1.7;
}

.footer-col h3 {
  margin: 0 0 20px;
  color: #ffffff;
  font-size: 15px;
}

.footer-col a {
  display: block;
  color: #b6becb;
  font-size: 14px;
  line-height: 2;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  margin-top: 64px;
  padding-top: 28px;
  color: #6f7784;
  font-size: 12px;
}

.placeholder-page {
  display: grid;
  min-height: 720px;
  place-items: center;
  background: var(--surface-soft);
  text-align: center;
}

.placeholder-card {
  width: min(760px, 70vw);
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #ffffff;
  padding: 72px;
  box-shadow: var(--shadow-soft);
}

.placeholder-card h1 {
  margin: 0;
  font-size: 42px;
}

.placeholder-card p {
  margin: 24px 0 34px;
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.8;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 520ms var(--ease),
    transform 520ms var(--ease);
}

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

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}