:root {
  --bg: #f5f1e8;
  --bg-soft: #faf7f1;
  --surface: rgba(255, 255, 255, 0.84);
  --surface-strong: #ffffff;
  --ink: #13161c;
  --muted: #646d7c;
  --muted-strong: #48505f;
  --line: rgba(19, 22, 28, 0.08);
  --line-strong: rgba(19, 22, 28, 0.14);
  --accent: #1e4ed8;
  --accent-soft: #edf3ff;
  --warm: #ff7b35;
  --warm-soft: #fff0e5;
  --dark: #10141f;
  --dark-strong: #0b0e16;
  --section-width: min(1180px, calc(100vw - 40px));
  --display-font: "Alibaba Sans", "HarmonyOS Sans SC", "Segoe UI Variable Display", "PingFang SC", "Microsoft YaHei UI", sans-serif;
  --body-font: "Alibaba Sans", "HarmonyOS Sans SC", "Segoe UI Variable Text", "PingFang SC", "Microsoft YaHei UI", sans-serif;
  --shadow: 0 28px 70px rgba(20, 24, 36, 0.1);
  --shadow-soft: 0 14px 36px rgba(20, 24, 36, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(30, 78, 216, 0.08), transparent 24%),
    radial-gradient(circle at top right, rgba(255, 123, 53, 0.1), transparent 20%),
    linear-gradient(180deg, #fbf8f1 0%, #f5f1e8 48%, #f7f4ee 100%);
  font-family: var(--body-font);
  overflow-x: hidden;
}

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

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

button,
input,
textarea {
  font: inherit;
}

.site-shell {
  min-height: 100vh;
}

.site-header,
.hero-section,
.section,
.site-footer {
  width: var(--section-width);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 18px;
  padding: 16px 20px;
  border: 1px solid rgba(255, 255, 255, 0.88);
  border-radius: 26px;
  background: rgba(255, 251, 245, 0.78);
  backdrop-filter: blur(22px);
  box-shadow: 0 12px 32px rgba(24, 28, 43, 0.06);
  transition:
    transform 220ms ease,
    background-color 220ms ease,
    border-color 220ms ease,
    box-shadow 220ms ease;
}

.site-header.is-scrolled {
  transform: translateY(6px);
  background: rgba(255, 251, 245, 0.95);
  border-color: rgba(19, 22, 28, 0.06);
  box-shadow: 0 18px 42px rgba(20, 24, 36, 0.1);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(180deg, #18284d 0%, #0f1423 100%);
  color: #ffffff;
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  box-shadow: 0 16px 32px rgba(16, 20, 31, 0.16);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.brand-copy strong {
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
}

.brand-copy small {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.2;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--muted-strong);
  font-size: 14px;
}

.site-nav a {
  position: relative;
  transition: color 180ms ease;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--ink);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.header-actions,
.hero-actions,
.cta-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.cta-minor-link {
  color: rgba(255, 255, 255, 0.76);
  font-size: 14px;
  line-height: 1.6;
}

.cta-minor-link:hover,
.cta-minor-link:focus-visible {
  color: #ffffff;
}

.solid-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 24px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    color 180ms ease;
}

.solid-button {
  color: #ffffff;
  background: linear-gradient(135deg, #1a2d5a 0%, #111827 100%);
  box-shadow: 0 18px 40px rgba(17, 24, 39, 0.18);
}

.solid-button:hover,
.solid-button:focus-visible {
  transform: translateY(-1px);
}

.hero-section {
  padding: 86px 0 24px;
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.98fr) minmax(420px, 1.02fr);
  gap: 40px;
  align-items: center;
}

.hero-copy {
  max-width: 560px;
}

.eyebrow {
  margin: 0 0 16px;
  color: #7d8797;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.hero-copy h1,
.section-head h2,
.cta-copy h2 {
  margin: 0;
  font-family: var(--display-font);
  letter-spacing: -0.05em;
}

.hero-copy h1 {
  font-size: clamp(52px, 7.4vw, 86px);
  line-height: 0.95;
  font-weight: 760;
}

.hero-copy h1 span {
  display: block;
  color: #1a4acb;
}

.hero-summary,
.section-head p,
.info-card p,
.role-card li,
.loop-list p,
.loop-visual-note p,
.capability-card p,
.scenario-card p,
.launch-grid p,
.cta-copy p,
.footer-brand span {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.75;
}

.hero-summary {
  margin: 24px 0 0;
}

.hero-note {
  margin: 14px 0 0;
  color: var(--muted-strong);
  font-size: 14px;
  line-height: 1.7;
}

.hero-actions {
  margin-top: 30px;
  align-items: center;
}

.hero-action-note {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.hero-trust-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 26px;
}

.hero-trust-band div {
  display: grid;
  gap: 8px;
  padding: 16px 18px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(19, 22, 28, 0.08);
  box-shadow: var(--shadow-soft);
}

.hero-trust-band strong {
  font-size: 24px;
  line-height: 1;
  letter-spacing: -0.04em;
}

.hero-trust-band span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.hero-stage,
.loop-visual,
.launch-surface,
.cta-surface {
  position: relative;
  overflow: hidden;
  border-radius: 32px;
  background:
    radial-gradient(circle at 16% 16%, rgba(255, 126, 67, 0.18), transparent 24%),
    radial-gradient(circle at 84% 14%, rgba(77, 118, 255, 0.2), transparent 22%),
    linear-gradient(180deg, #111827 0%, #0e1320 100%);
  box-shadow: 0 36px 80px rgba(15, 19, 32, 0.18);
}

.hero-stage {
  padding: 26px;
  min-height: 560px;
}

.hero-stage-head,
.hero-stage-note {
  position: relative;
  z-index: 1;
}

.hero-stage-head {
  display: grid;
  gap: 8px;
  margin-bottom: 26px;
}

.hero-stage-head p {
  margin: 0;
  color: rgba(255, 255, 255, 0.56);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.hero-stage-head strong {
  color: #ffffff;
  font-size: clamp(22px, 2.4vw, 30px);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.hero-stage-canvas {
  position: relative;
  min-height: 380px;
}

.hero-dashboard,
.hero-phone {
  position: absolute;
}

.hero-dashboard {
  width: min(86%, 760px);
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0 auto;
  border-radius: 24px;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.34);
}

.hero-phone {
  border-radius: 28px;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.36);
}

.hero-phone-front {
  width: min(26%, 196px);
  right: 7%;
  top: 34px;
  transform: rotate(4deg);
}

.stage-kpi-card {
  position: absolute;
  left: 3%;
  top: 12px;
  z-index: 1;
  display: grid;
  gap: 8px;
  width: min(40%, 248px);
  padding: 14px 16px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.16);
}

.stage-kpi-card span {
  color: #5a6376;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.stage-kpi-card strong {
  font-size: 24px;
  line-height: 1.08;
  letter-spacing: -0.04em;
  color: #10141f;
}

.stage-kpi-card small {
  color: #5f697a;
  font-size: 13px;
  line-height: 1.6;
}

.hero-stage-note {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 22px;
}

.hero-stage-note span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.84);
  font-size: 13px;
  font-weight: 600;
}

.info-card,
.role-card,
.capability-card,
.scenario-card {
  padding: 22px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow-soft);
}

.scenario-card strong,
.launch-grid strong {
  display: block;
  font-size: 15px;
  line-height: 1.2;
}

.scenario-card span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--warm-soft);
  color: #b65d25;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.scenario-card p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.section {
  padding: 112px 0 0;
}

.section-head {
  width: min(820px, 100%);
  margin-bottom: 38px;
}

.section-head h2,
.cta-copy h2 {
  font-size: clamp(40px, 5vw, 70px);
  line-height: 1.02;
  font-weight: 740;
}

.section-head p,
.cta-copy p {
  margin: 18px 0 0;
  width: min(760px, 100%);
}

.section-head-split {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.9fr);
  align-items: end;
  gap: 28px;
  width: 100%;
}

.section-head-split p:last-child {
  width: auto;
}

.why-grid,
.role-grid,
.pilot-steps,
.proof-grid,
.capability-grid,
.scenario-grid {
  display: grid;
  gap: 18px;
}

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

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

.pilot-section {
  padding-top: 92px;
}

.pilot-surface {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 28px;
  align-items: start;
  padding: 32px;
  border-radius: 32px;
  background:
    radial-gradient(circle at top left, rgba(30, 78, 216, 0.1), transparent 24%),
    radial-gradient(circle at bottom right, rgba(255, 123, 53, 0.14), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(248, 244, 236, 0.94));
  border: 1px solid rgba(19, 22, 28, 0.08);
  box-shadow: var(--shadow);
}

.pilot-copy h2 {
  margin: 0;
  font-size: clamp(38px, 4.8vw, 62px);
  line-height: 1.02;
  letter-spacing: -0.05em;
}

.pilot-copy p:last-child {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.75;
}

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

.pilot-steps article {
  display: grid;
  gap: 10px;
  padding: 20px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid rgba(19, 22, 28, 0.08);
}

.pilot-steps span {
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.pilot-steps strong {
  font-size: 22px;
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.pilot-steps p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.pilot-button {
  grid-column: 1 / -1;
  width: fit-content;
}

.proof-section {
  padding-top: 92px;
}

.proof-grid {
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.16fr) minmax(0, 0.92fr);
  align-items: stretch;
}

.proof-card {
  display: grid;
  align-content: start;
  gap: 18px;
  padding: 26px;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
}

.proof-card-accent {
  color: #ffffff;
  background:
    radial-gradient(circle at top right, rgba(255, 123, 53, 0.24), transparent 28%),
    linear-gradient(180deg, #16213d 0%, #10141f 100%);
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 34px 80px rgba(16, 20, 31, 0.2);
}

.proof-card span {
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.proof-card-accent span {
  color: #ffb17d;
}

.proof-card h3 {
  margin: 0;
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.06;
  letter-spacing: -0.05em;
}

.proof-card ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.proof-card li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.proof-card-accent li {
  color: rgba(255, 255, 255, 0.74);
}

.proof-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--warm);
}

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

.scenario-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.info-card span,
.role-card p,
.loop-list span {
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.info-card h3,
.role-card h3,
.loop-list h3,
.capability-card h3,
.loop-visual-note strong,
.launch-grid strong {
  margin: 14px 0 0;
  font-size: 24px;
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.info-card p,
.capability-card p {
  margin: 14px 0 0;
}

.role-card ul {
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.role-card li {
  position: relative;
  padding-left: 18px;
}

.role-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--warm);
}

.loop-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 0.98fr);
  gap: 28px;
  align-items: stretch;
}

.loop-list {
  display: grid;
  gap: 14px;
}

.loop-list article {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 18px;
  padding: 22px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow-soft);
}

.loop-list span {
  display: inline-flex;
  align-items: flex-start;
  justify-content: flex-start;
}

.loop-list h3 {
  margin-top: 0;
}

.loop-list p {
  margin: 12px 0 0;
}

.loop-visual {
  padding: 22px;
}

.loop-visual img {
  width: 100%;
  border-radius: 22px;
  box-shadow: 0 26px 70px rgba(0, 0, 0, 0.3);
}

.loop-visual-note {
  display: grid;
  gap: 10px;
  margin-top: 18px;
  padding: 18px 20px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.loop-visual-note strong {
  color: #ffffff;
  margin: 0;
}

.loop-visual-note p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 15px;
}

.launch-surface,
.cta-surface {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: end;
  padding: 34px;
}

.launch-copy h2,
.cta-copy h2 {
  color: #ffffff;
}

.launch-copy p,
.cta-copy p {
  color: rgba(255, 255, 255, 0.72);
}

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

.launch-grid article {
  padding: 20px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.launch-grid p {
  margin: 10px 0 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
  line-height: 1.7;
}

.cta-checklist {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.cta-checklist span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.86);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 13px;
  font-weight: 600;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 72px 0 36px;
  color: var(--muted);
}

.footer-brand {
  display: grid;
  gap: 8px;
}

.footer-brand strong {
  color: var(--ink);
  font-size: 18px;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 520ms ease,
    transform 520ms ease;
}

html:not(.js-motion) [data-reveal],
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1180px) {
  .site-nav {
    display: none;
  }

  .site-header {
    gap: 18px;
  }

  .hero-layout,
  .loop-layout,
  .section-head-split {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: none;
  }

  .hero-stage {
    min-height: 520px;
  }

  .why-grid,
  .role-grid,
  .pilot-steps,
  .proof-grid,
  .capability-grid,
  .scenario-grid,
  .launch-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pilot-surface {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .site-header,
  .hero-stage,
  .info-card,
  .role-card,
  .capability-card,
  .scenario-card,
  .loop-list article,
  .loop-visual,
  .launch-surface,
  .cta-surface {
    border-radius: 22px;
  }

  .hero-section {
    padding-top: 40px;
  }

  .hero-copy h1 {
    font-size: clamp(42px, 12vw, 64px);
  }

  .site-header {
    padding: 14px 16px;
    gap: 12px;
  }

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

  .header-actions .solid-button {
    min-height: 44px;
    padding: 0 18px;
  }

  .hero-stage {
    padding: 20px;
    min-height: 460px;
  }

  .hero-stage-canvas {
    min-height: 300px;
  }

  .hero-dashboard {
    width: 100%;
    left: 0;
    bottom: 0;
  }

  .hero-phone-front {
    width: min(34%, 148px);
    right: 2%;
    top: 18px;
  }

  .stage-kpi-card {
    left: 4%;
    top: 8px;
    width: min(58%, 220px);
  }

  .hero-trust-band,
  .hero-stage-note,
  .why-grid,
  .role-grid,
  .pilot-steps,
  .proof-grid,
  .capability-grid,
  .scenario-grid,
  .launch-grid {
    grid-template-columns: 1fr;
  }

  .pilot-surface,
  .launch-surface,
  .cta-surface {
    grid-template-columns: 1fr;
    padding: 24px;
  }

  .hero-action-note {
    width: 100%;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
    padding-top: 54px;
  }
}
