:root {
  --bg: #07111f;
  --panel: #0f1d33;
  --panel-soft: rgba(255, 255, 255, 0.06);
  --text: #122033;
  --muted: #5f6f86;
  --line: rgba(18, 32, 51, 0.08);
  --accent: #2374ff;
  --accent-2: #27c2b7;
  --accent-3: #7f5cff;
  --steel: #7e8ea8;
  --steel-dark: #30425e;
  --warm: #ffb454;
  --light-text: #eef4ff;
  --light-muted: rgba(238, 244, 255, 0.72);
  --shadow: 0 24px 60px rgba(5, 16, 35, 0.12);
  --radius: 22px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    linear-gradient(rgba(18, 32, 51, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 32, 51, 0.03) 1px, transparent 1px),
    radial-gradient(circle at top left, rgba(39, 194, 183, 0.12), transparent 28%),
    linear-gradient(180deg, #f4f8fd 0%, #edf3fb 100%);
  background-size: 36px 36px, 36px 36px, auto, auto;
  line-height: 1.65;
}

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

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

.container {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

.narrow {
  max-width: 820px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(244, 248, 253, 0.86);
  border-bottom: 1px solid rgba(18, 32, 51, 0.08);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

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

.brand strong,
.brand small {
  display: block;
}

.brand strong,
.brand-title {
  font-size: 21px;
  line-height: 1.15;
  letter-spacing: 0.01em;
}

.brand small,
.brand-slogan {
  color: var(--muted);
  font-size: 13px;
  margin-top: 0;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.brand-mark {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  color: white;
  font-weight: 700;
  letter-spacing: 0.08em;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  box-shadow: 0 14px 28px rgba(35, 116, 255, 0.28);
}

.main-nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.main-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
}

.main-nav a.active,
.main-nav a:hover {
  background: rgba(35, 116, 255, 0.1);
  color: var(--accent);
}

.hero,
.page-hero {
  padding: 90px 0 46px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 34px;
  align-items: center;
}

.hero-company {
  margin-bottom: 14px;
  color: var(--steel-dark);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow {
  margin: 0 0 14px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 12px;
  color: var(--accent);
  font-weight: 700;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(36px, 5vw, 62px);
  line-height: 1.08;
  margin-bottom: 20px;
}

h2 {
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.15;
  margin-bottom: 14px;
}

h3 {
  font-size: 22px;
  margin-bottom: 10px;
}

.hero-text,
.section-heading p,
.page-hero p,
.solution-card p,
.stack-item p,
.platform-card p,
.about-card p,
.principle-card p,
.product-card p,
.feature-list p,
.stage-card p,
.timeline-item p,
.bullet-card p,
.site-footer p {
  color: var(--muted);
}

.page-hero-text {
  max-width: 720px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin: 28px 0 22px;
  flex-wrap: wrap;
}

.btn {
  padding: 13px 20px;
  border-radius: 999px;
  font-weight: 600;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #4f8fff);
  color: white;
  box-shadow: 0 18px 34px rgba(35, 116, 255, 0.24);
}

.btn-secondary {
  background: rgba(35, 116, 255, 0.08);
  color: var(--accent);
}

.hero-metrics,
.page-hero-side {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.metric-card {
  position: relative;
  overflow: hidden;
  border-radius: 18px;
  padding: 18px 18px 16px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(237, 243, 251, 0.88));
  border: 1px solid rgba(48, 66, 94, 0.12);
  box-shadow: var(--shadow);
}

.metric-card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--warm));
}

.metric-card strong {
  display: block;
  margin-bottom: 6px;
  font-size: 26px;
  color: var(--steel-dark);
}

.metric-card span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.hero-points {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.hero-points li {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(18, 32, 51, 0.06);
  border-radius: 16px;
  padding: 12px 16px;
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 1px;
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(35, 116, 255, 0.32), rgba(39, 194, 183, 0.16));
  box-shadow: var(--shadow);
}

.hero-card-inner {
  border-radius: 27px;
  padding: 32px;
  color: var(--light-text);
  min-height: 100%;
  background:
    linear-gradient(160deg, rgba(7, 17, 31, 0.98), rgba(13, 29, 58, 0.95)),
    radial-gradient(circle at top right, rgba(39, 194, 183, 0.16), transparent 30%);
}

.route-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 26px;
}

.route-item {
  border-radius: 18px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.route-item span {
  display: inline-flex;
  min-width: 40px;
  margin-bottom: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.route-item h3 {
  font-size: 18px;
  margin-bottom: 6px;
}

.route-item p {
  margin-bottom: 0;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.hero-tags span {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 13px;
}

.card-kicker {
  color: var(--light-muted);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-card p,
.section-dark p,
.section-dark .eyebrow,
.section-dark h2,
.section-dark h3,
.section-dark span,
.light p {
  color: var(--light-text);
}

.hero-card p:last-child,
.section-dark .section-heading p,
.light p,
.section-dark .stage-card p,
.section-dark .platform-card p,
.principle-card p {
  color: var(--light-muted);
}

.section {
  padding: 46px 0 70px;
}

.section-heading {
  margin-bottom: 30px;
}

.section-heading.narrow {
  max-width: 760px;
}

.page-hero-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 28px;
  align-items: stretch;
  padding: 34px;
  border-radius: 30px;
  background:
    radial-gradient(circle at top right, rgba(39, 194, 183, 0.14), transparent 30%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(231, 239, 250, 0.92));
  border: 1px solid rgba(48, 66, 94, 0.12);
  box-shadow: var(--shadow);
}

.page-hero-panel h1 {
  max-width: 12em;
  margin-bottom: 18px;
}

.diagram-panel {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(18, 32, 51, 0.06);
  border-radius: 30px;
  padding: 18px;
  box-shadow: var(--shadow);
}

.section-dark {
  background: linear-gradient(180deg, #07111f 0%, #0c1930 100%);
}

.workflow-board {
  padding: 28px;
  border-radius: 30px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(239, 244, 251, 0.95));
  border: 1px solid rgba(48, 66, 94, 0.1);
  box-shadow: var(--shadow);
}

.workflow-rail {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  margin-bottom: 24px;
}

.workflow-anchor {
  min-width: 150px;
  padding: 14px 18px;
  border-radius: 18px;
  background: rgba(35, 116, 255, 0.08);
  border: 1px solid rgba(35, 116, 255, 0.12);
}

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

.workflow-anchor strong {
  margin-bottom: 4px;
  color: var(--steel-dark);
}

.workflow-anchor span {
  color: var(--muted);
  font-size: 13px;
}

.workflow-anchor-end {
  background: rgba(39, 194, 183, 0.08);
  border-color: rgba(39, 194, 183, 0.18);
}

.workflow-line {
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 999px;
}

.workflow-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.workflow-card {
  border-radius: 22px;
  padding: 22px;
  border: 1px solid rgba(48, 66, 94, 0.1);
  background: rgba(255, 255, 255, 0.86);
  min-height: 100%;
}

.workflow-card-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.workflow-card-head span {
  display: inline-flex;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  font-size: 13px;
  font-weight: 700;
  color: white;
}

.workflow-card h3 {
  margin-bottom: 0;
  font-size: 22px;
}

.workflow-card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.workflow-card li + li {
  margin-top: 8px;
}

.workflow-blue .workflow-card-head span {
  background: linear-gradient(135deg, #2374ff, #4e8eff);
}

.workflow-green .workflow-card-head span {
  background: linear-gradient(135deg, #27c2b7, #49d5a8);
}

.workflow-amber .workflow-card-head span {
  background: linear-gradient(135deg, #f0a63b, #ffca67);
}

.workflow-red .workflow-card-head span {
  background: linear-gradient(135deg, #eb5d58, #ff8c74);
}

.workflow-purple .workflow-card-head span {
  background: linear-gradient(135deg, #7450f8, #9668ff);
}

.workflow-violet .workflow-card-head span {
  background: linear-gradient(135deg, #4862d8, #748dff);
}

.workflow-base {
  margin-top: 22px;
  padding: 22px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(7, 17, 31, 0.98), rgba(13, 29, 58, 0.95));
}

.workflow-base-title {
  margin-bottom: 16px;
  color: var(--light-text);
  font-size: 18px;
  font-weight: 700;
}

.workflow-base-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.workflow-base-grid span {
  padding: 12px 14px;
  border-radius: 16px;
  color: var(--light-text);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 14px;
}

.stage-grid,
.product-grid,
.platform-grid,
.solution-grid,
.about-grid,
.principle-grid {
  display: grid;
  gap: 22px;
}

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

.product-grid,
.platform-grid,
.solution-grid,
.about-grid,
.principle-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.stage-card,
.product-card,
.platform-card,
.solution-card,
.about-card,
.principle-card,
.stack-item,
.bullet-card,
.timeline-item {
  border-radius: var(--radius);
  padding: 24px;
}

.stage-card,
.platform-card,
.principle-card {
  background: var(--panel-soft);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.stage-card span {
  display: inline-flex;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--light-text);
  font-weight: 700;
}

.product-card,
.solution-card,
.about-card,
.stack-item,
.bullet-card,
.timeline-item {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.accent-section {
  background: linear-gradient(180deg, rgba(35, 116, 255, 0.05), rgba(39, 194, 183, 0.04));
}

.callout-grid,
.two-col {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 28px;
  align-items: start;
}

.feature-list {
  display: grid;
  gap: 20px;
}

.feature-list > div {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.stack-list,
.timeline {
  display: grid;
  gap: 18px;
}

.timeline-item span {
  display: inline-block;
  margin-bottom: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(35, 116, 255, 0.1);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
}

.site-footer {
  padding: 26px 0 38px;
  background: #07111f;
  color: var(--light-text);
}

.footer-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.site-footer a,
.site-footer p {
  color: var(--light-muted);
}

.footer-title {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
}

@media (max-width: 980px) {
  .hero-grid,
  .page-hero-panel,
  .callout-grid,
  .two-col,
  .stage-grid,
  .product-grid,
  .platform-grid,
  .solution-grid,
  .about-grid,
  .principle-grid {
    grid-template-columns: 1fr;
  }

  .hero-metrics,
  .page-hero-side,
  .workflow-grid,
  .workflow-base-grid {
    grid-template-columns: 1fr;
  }

  .workflow-rail {
    grid-template-columns: 1fr;
  }

  .workflow-line {
    height: 56px;
    width: 2px;
    justify-self: center;
    background: linear-gradient(180deg, var(--accent), var(--accent-2));
  }

  .nav-wrap,
  .footer-wrap {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(var(--container), calc(100% - 24px));
  }

  .hero,
  .page-hero {
    padding-top: 70px;
  }

  .hero-card-inner,
  .workflow-board,
  .stage-card,
  .product-card,
  .platform-card,
  .solution-card,
  .about-card,
  .principle-card,
  .stack-item,
  .bullet-card,
  .timeline-item,
  .feature-list > div {
    padding: 20px;
  }

  .route-grid,
  .hero-metrics,
  .page-hero-side {
    grid-template-columns: 1fr;
  }

  .brand strong,
  .brand-title {
    font-size: 18px;
  }
}