:root {
  color-scheme: light;
  --ink: #0a1733;
  --ink-soft: #42506a;
  --blue: #1268f3;
  --blue-deep: #073ea3;
  --green: #08ad72;
  --red: #dc4c54;
  --amber: #d99218;
  --line: #dfe5ee;
  --line-strong: #cfd7e3;
  --surface: #ffffff;
  --surface-soft: #f4f7fb;
  --dark: #07111f;
  --dark-soft: #0c192b;
  --content: 1240px;
  font-family: Inter, "SF Pro Display", "SF Pro Text", -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-size: 15px;
  line-height: 1.6;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
}

body.nav-open {
  overflow: hidden;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 30;
  border-bottom: 1px solid rgba(207, 215, 227, 0.74);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: saturate(180%) blur(18px);
}

.site-header-inner {
  width: min(var(--content), calc(100% - 48px));
  height: 70px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: max-content;
}

.site-brand img {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.site-brand-name {
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
  font-size: 20px;
  line-height: 1;
  font-weight: 800;
}

.site-brand-name strong {
  color: var(--ink);
}

.site-brand-name b {
  color: var(--blue);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 34px;
  font-size: 13px;
  font-weight: 600;
  color: #4c5b73;
}

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

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 2px;
  height: 2px;
  background: var(--blue);
  transition: right 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  right: 0;
}

.header-actions {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 10px;
}

.system-entry,
.primary-action {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 17px;
  border: 1px solid var(--blue);
  border-radius: 6px;
  color: #ffffff;
  background: var(--blue);
  font-size: 13px;
  line-height: 1;
  font-weight: 700;
  transition: background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.system-entry:hover,
.system-entry:focus-visible,
.primary-action:hover,
.primary-action:focus-visible {
  border-color: var(--blue-deep);
  background: var(--blue-deep);
  transform: translateY(-1px);
}

.entry-arrow {
  font-size: 15px;
}

.nav-toggle {
  width: 40px;
  height: 40px;
  display: none;
  place-items: center;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #ffffff;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  margin: 2px 0;
  background: var(--ink);
}

.hero {
  position: relative;
  height: calc(100svh - 40px);
  min-height: 760px;
  max-height: 930px;
  padding-top: 70px;
  overflow: hidden;
  background: #f7f9fc;
  border-bottom: 1px solid var(--line);
}

.hero-copy {
  position: relative;
  z-index: 3;
  width: min(var(--content), calc(100% - 48px));
  margin: 0 auto;
  padding-top: 72px;
  text-align: center;
}

.hero-kicker,
.section-kicker {
  display: inline-block;
  color: var(--blue);
  font-size: 11px;
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.hero h1 {
  margin: 10px 0 0;
  color: var(--ink);
  font-size: 68px;
  line-height: 1.02;
  letter-spacing: 0;
}

.hero-statement {
  margin: 13px 0 0;
  color: var(--ink);
  font-size: 30px;
  line-height: 1.25;
  font-weight: 700;
}

.hero-description {
  margin: 18px auto 0;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  margin-top: 24px;
}

.text-action {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 0;
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
}

.text-action:hover,
.text-action:focus-visible {
  color: var(--blue);
}

.product-scene {
  position: absolute;
  z-index: 1;
  left: 50%;
  bottom: -145px;
  width: min(1360px, calc(100% - 64px));
  transform: translateX(-50%);
}

.product-shell {
  height: 470px;
  display: grid;
  grid-template-columns: 182px minmax(0, 1fr);
  overflow: hidden;
  border: 1px solid #cbd5e3;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 28px 80px rgba(30, 53, 88, 0.15);
}

.product-sidebar {
  padding: 22px 14px;
  border-right: 1px solid #dfe5ee;
  background: #fbfcfe;
}

.product-brand-mini {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 8px 28px;
}

.product-brand-mini img {
  width: 25px;
  height: 25px;
}

.product-brand-mini span {
  display: inline-flex;
  gap: 4px;
  font-size: 13px;
  font-weight: 800;
}

.product-brand-mini b {
  color: var(--blue);
}

.preview-nav-item {
  height: 34px;
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 4px;
  padding: 0 10px;
  border-radius: 5px;
  color: #627089;
  font-size: 11px;
  font-weight: 650;
}

.preview-nav-item span {
  width: 11px;
  height: 11px;
  border: 1.5px solid currentColor;
  border-radius: 3px;
}

.preview-nav-item.active {
  color: #0c55c9;
  background: #eaf2ff;
}

.product-content {
  padding: 24px 28px;
  overflow: hidden;
}

.product-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.preview-overline {
  display: block;
  margin-bottom: 2px;
  color: #8290a7;
  font-size: 8px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.product-toolbar h2 {
  margin: 0;
  font-size: 17px;
  line-height: 1.3;
}

.live-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #607089;
  font-size: 9px;
}

.live-indicator i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(8, 173, 114, 0.12);
}

.preview-filters {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

.preview-filters span {
  min-width: 98px;
  padding: 7px 10px;
  border: 1px solid #dce3ed;
  border-radius: 5px;
  color: #506078;
  font-size: 8px;
  font-weight: 650;
}

.preview-filters span:last-child {
  min-width: 125px;
}

.preview-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 14px;
  border: 1px solid #dfe5ee;
  border-radius: 7px;
}

.preview-metrics > div {
  min-width: 0;
  padding: 15px 17px 13px;
  border-right: 1px solid #dfe5ee;
}

.preview-metrics > div:last-child {
  border-right: 0;
}

.preview-metrics small {
  display: block;
  color: #6c7a90;
  font-size: 8px;
  font-style: normal;
}

.preview-metrics strong {
  display: block;
  margin-top: 3px;
  overflow: hidden;
  color: #0c1a32;
  font-size: 17px;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.preview-metrics em {
  display: block;
  margin-top: 2px;
  font-size: 8px;
  font-style: normal;
  font-weight: 750;
}

.preview-metrics .up {
  color: #079861;
}

.preview-main-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(230px, 0.7fr);
  gap: 14px;
  margin-top: 14px;
}

.preview-chart-panel,
.preview-signal-panel {
  height: 216px;
  padding: 14px 16px;
  border: 1px solid #dfe5ee;
  border-radius: 7px;
  background: #ffffff;
}

.preview-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 10px;
  font-weight: 750;
}

.preview-panel-head small {
  color: #8a97aa;
  font-size: 8px;
  font-weight: 500;
}

.preview-chart {
  width: 100%;
  height: 155px;
  margin-top: 4px;
  overflow: visible;
}

.chart-grid line {
  stroke: #e7ecf3;
  stroke-width: 1;
  stroke-dasharray: 4 6;
}

.chart-fill {
  fill: rgba(18, 104, 243, 0.08);
}

.chart-line,
.chart-line-secondary {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 4;
}

.chart-line {
  stroke: var(--blue);
}

.chart-line-secondary {
  stroke: var(--green);
  stroke-width: 3;
}

.chart-legend {
  display: flex;
  gap: 16px;
  margin-top: -3px;
  color: #6c7b91;
  font-size: 8px;
}

.chart-legend span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.chart-legend i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.chart-legend .blue {
  background: var(--blue);
}

.chart-legend .green {
  background: var(--green);
}

.signal-row {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 12px 0;
  border-bottom: 1px solid #edf1f6;
}

.signal-row:last-child {
  border-bottom: 0;
}

.signal-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.signal-dot.green {
  background: var(--green);
}

.signal-dot.amber {
  background: var(--amber);
}

.signal-dot.red {
  background: var(--red);
}

.signal-row strong,
.signal-row small {
  display: block;
}

.signal-row strong {
  font-size: 9px;
}

.signal-row small {
  margin-top: 1px;
  color: #8a97aa;
  font-size: 8px;
}

.signal-row b {
  color: #465570;
  font-size: 9px;
}

.section-inner {
  width: min(var(--content), calc(100% - 48px));
  margin: 0 auto;
}

.intro-band {
  padding: 122px 0 88px;
  background: #ffffff;
}

.intro-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(380px, 0.75fr);
  gap: 90px;
  align-items: end;
  padding-bottom: 72px;
}

.section-heading h2,
.workflow-band h2,
.architecture-copy h2,
.closing-inner h2 {
  margin: 14px 0 0;
  font-size: 42px;
  line-height: 1.2;
  letter-spacing: 0;
}

.intro-layout > p,
.architecture-copy > p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.95;
}

.capability-list {
  border-top: 1px solid var(--line-strong);
}

.capability-item {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr) auto;
  gap: 28px;
  align-items: start;
  padding: 36px 0;
  border-bottom: 1px solid var(--line);
}

.capability-index {
  color: #8a97aa;
  font-size: 13px;
  font-weight: 750;
}

.capability-item h3 {
  margin: 0;
  font-size: 22px;
  line-height: 1.3;
}

.capability-item p {
  max-width: 710px;
  margin: 8px 0 0;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.8;
}

.capability-tag {
  align-self: center;
  min-width: 62px;
  padding: 5px 9px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  color: #6d7b91;
  font-size: 9px;
  line-height: 1;
  font-weight: 800;
  text-align: center;
  letter-spacing: 0.08em;
}

.workflow-band {
  padding: 108px 0 112px;
  color: #ffffff;
  background: var(--dark);
}

.section-kicker.light {
  color: #67a4ff;
}

.workflow-band h2 {
  max-width: 720px;
  color: #ffffff;
}

.workflow-track {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin-top: 72px;
  border-top: 1px solid #2b3a50;
  border-bottom: 1px solid #2b3a50;
}

.workflow-track > div {
  position: relative;
  min-height: 176px;
  padding: 26px 22px 24px;
  border-right: 1px solid #2b3a50;
}

.workflow-track > div:last-child {
  border-right: 0;
}

.workflow-track span,
.workflow-track strong,
.workflow-track small {
  display: block;
}

.workflow-track span {
  color: #67a4ff;
  font-size: 11px;
  font-weight: 800;
}

.workflow-track strong {
  margin-top: 34px;
  font-size: 17px;
}

.workflow-track small {
  margin-top: 7px;
  color: #9cacbf;
  font-size: 12px;
}

.architecture-band {
  padding: 120px 0;
  background: var(--surface-soft);
}

.architecture-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(480px, 1.1fr);
  gap: 100px;
  align-items: center;
}

.architecture-copy > p {
  margin-top: 24px;
}

.architecture-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 44px 0 0;
  padding-top: 28px;
  border-top: 1px solid var(--line-strong);
}

.architecture-facts div {
  padding-right: 18px;
}

.architecture-facts dt {
  color: var(--ink);
  font-size: 24px;
  line-height: 1.2;
  font-weight: 800;
}

.architecture-facts dd {
  margin: 6px 0 0;
  color: #6b7890;
  font-size: 11px;
}

.architecture-visual {
  padding: 8px 0;
}

.architecture-layer {
  min-height: 142px;
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  grid-template-rows: auto auto;
  align-content: center;
  column-gap: 28px;
  padding: 30px 34px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: #ffffff;
}

.architecture-layer span {
  grid-row: 1 / 3;
  align-self: center;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
}

.architecture-layer strong {
  align-self: end;
  font-size: 18px;
}

.architecture-layer small {
  color: #8390a4;
  font-size: 10px;
}

.local-layer span {
  color: var(--green);
}

.architecture-connector {
  height: 92px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #758399;
  font-size: 9px;
  font-weight: 750;
}

.architecture-connector span {
  width: 1px;
  height: 23px;
  background: #b9c3d1;
}

.architecture-connector b {
  margin: 4px 0;
  font-weight: 700;
}

.closing-band {
  padding: 110px 0 118px;
  text-align: center;
  background: #ffffff;
}

.closing-inner h2 {
  max-width: 800px;
  margin-right: auto;
  margin-left: auto;
}

.closing-inner .primary-action {
  margin-top: 34px;
}

.site-footer {
  padding: 34px 0;
  border-top: 1px solid var(--line);
  background: #ffffff;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  color: #728097;
  font-size: 10px;
}

.footer-inner p {
  margin: 0;
  text-align: center;
}

.footer-inner > span {
  justify-self: end;
}

.footer-brand img {
  width: 26px;
  height: 26px;
}

.footer-brand .site-brand-name {
  font-size: 15px;
}

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

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

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 980px) {
  .site-header-inner {
    grid-template-columns: 1fr auto;
  }

  .site-nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 18px 24px 26px;
    border-bottom: 1px solid var(--line);
    background: #ffffff;
  }

  .header-actions {
    grid-column: 2;
    grid-row: 1;
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    width: 100%;
    padding: 13px 0;
    border-bottom: 1px solid #edf1f6;
  }

  .site-nav a::after {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .hero {
    min-height: 760px;
    max-height: 820px;
  }

  .hero-copy {
    padding-top: 58px;
  }

  .hero h1 {
    font-size: 58px;
  }

  .hero-statement {
    font-size: 27px;
  }

  .product-scene {
    bottom: -102px;
    width: calc(100% - 32px);
  }

  .product-shell {
    height: 410px;
    grid-template-columns: 140px minmax(0, 1fr);
  }

  .product-content {
    padding: 21px;
  }

  .product-sidebar {
    padding: 20px 10px;
  }

  .preview-main-grid {
    grid-template-columns: 1fr;
  }

  .preview-signal-panel {
    display: none;
  }

  .intro-layout,
  .architecture-layout {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .intro-layout {
    align-items: start;
  }

  .architecture-layout {
    gap: 64px;
  }

  .workflow-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .workflow-track > div:nth-child(3) {
    border-right: 0;
  }

  .workflow-track > div:nth-child(n + 4) {
    border-top: 1px solid #2b3a50;
  }
}

@media (max-width: 680px) {
  .site-header-inner,
  .hero-copy,
  .section-inner {
    width: min(var(--content), calc(100% - 32px));
  }

  .site-header-inner {
    height: 62px;
  }

  .site-nav {
    top: 62px;
  }

  .site-brand img {
    width: 30px;
    height: 30px;
  }

  .site-brand-name {
    font-size: 17px;
  }

  .header-actions .system-entry {
    width: 40px;
    min-height: 40px;
    padding: 0;
  }

  .header-actions .system-entry span:first-child {
    display: none;
  }

  .hero {
    height: calc(100svh - 30px);
    min-height: 730px;
    max-height: 820px;
    padding-top: 62px;
  }

  .hero-copy {
    padding-top: 44px;
  }

  .hero-kicker {
    font-size: 8px;
  }

  .hero h1 {
    margin-top: 9px;
    font-size: 44px;
  }

  .hero-statement {
    margin-top: 10px;
    font-size: 23px;
  }

  .hero-description {
    font-size: 13px;
    line-height: 1.75;
  }

  .hero-description br {
    display: none;
  }

  .hero-actions {
    flex-direction: column;
    gap: 5px;
    margin-top: 20px;
  }

  .primary-action {
    min-height: 42px;
  }

  .product-scene {
    bottom: -38px;
    width: calc(100% - 22px);
  }

  .product-shell {
    height: 330px;
    display: block;
    border-radius: 6px;
  }

  .product-sidebar {
    display: none;
  }

  .product-content {
    padding: 16px;
  }

  .preview-filters span:nth-child(2),
  .preview-filters span:nth-child(3) {
    display: none;
  }

  .preview-filters span {
    min-width: 0;
    flex: 1;
  }

  .preview-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .preview-metrics > div {
    padding: 10px 11px;
  }

  .preview-metrics > div:nth-child(2) {
    border-right: 0;
  }

  .preview-metrics > div:nth-child(n + 3) {
    border-top: 1px solid #dfe5ee;
  }

  .preview-metrics strong {
    font-size: 13px;
  }

  .preview-main-grid {
    margin-top: 10px;
  }

  .preview-chart-panel {
    height: 128px;
    padding: 10px;
  }

  .preview-chart {
    height: 88px;
  }

  .chart-legend {
    display: none;
  }

  .intro-band,
  .architecture-band {
    padding: 84px 0;
  }

  .intro-layout {
    gap: 28px;
    padding-bottom: 52px;
  }

  .section-heading h2,
  .workflow-band h2,
  .architecture-copy h2,
  .closing-inner h2 {
    font-size: 31px;
  }

  .intro-layout > p,
  .architecture-copy > p {
    font-size: 14px;
  }

  .capability-item {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 14px;
    padding: 28px 0;
  }

  .capability-item h3 {
    font-size: 19px;
  }

  .capability-tag {
    display: none;
  }

  .workflow-band {
    padding: 84px 0;
  }

  .workflow-track {
    grid-template-columns: 1fr;
    margin-top: 50px;
  }

  .workflow-track > div {
    min-height: 118px;
    padding: 20px 16px;
    border-right: 0;
    border-bottom: 1px solid #2b3a50;
  }

  .workflow-track > div:nth-child(n + 2) {
    border-top: 0;
  }

  .workflow-track strong {
    margin-top: 14px;
  }

  .architecture-layout {
    gap: 52px;
  }

  .architecture-facts {
    gap: 12px;
  }

  .architecture-facts dt {
    font-size: 20px;
  }

  .architecture-layer {
    min-height: 132px;
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    gap: 6px;
    padding: 24px;
  }

  .architecture-layer span {
    grid-row: auto;
  }

  .architecture-layer strong {
    font-size: 15px;
  }

  .closing-band {
    padding: 84px 0 92px;
  }

  .footer-inner {
    grid-template-columns: 1fr auto;
  }

  .footer-inner p {
    display: none;
  }
}