:root {
  --bg: #07111f;
  --bg-soft: #0d1b31;
  --panel: rgba(8, 20, 38, 0.72);
  --panel-strong: rgba(9, 24, 45, 0.92);
  --surface: #112641;
  --surface-soft: #183453;
  --line: rgba(160, 196, 255, 0.18);
  --line-strong: rgba(160, 196, 255, 0.32);
  --text: #f5f8ff;
  --text-soft: rgba(229, 238, 255, 0.74);
  --muted: rgba(188, 208, 240, 0.58);
  --accent: #7df9d2;
  --accent-strong: #3bdcb0;
  --accent-warm: #ffb36b;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.32);
  --radius: 28px;
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --display: "Space Grotesk", "Noto Sans SC", sans-serif;
  --page-width: min(1180px, calc(100vw - 48px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--sans);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(61, 124, 255, 0.24), transparent 34%),
    radial-gradient(circle at 80% 12%, rgba(125, 249, 210, 0.14), transparent 22%),
    linear-gradient(180deg, #07111f 0%, #06111e 38%, #091728 100%);
  overflow-x: hidden;
}

a {
  color: inherit;
}

.page-noise,
.page-glow {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: -3;
}

.page-noise {
  opacity: 0.18;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(circle at center, black 48%, transparent 100%);
}

.page-glow {
  z-index: -2;
  filter: blur(90px);
  opacity: 0.7;
}

.page-glow-left {
  background: radial-gradient(circle, rgba(61, 124, 255, 0.2), transparent 64%);
  transform: translate(-35%, -22%);
}

.page-glow-right {
  background: radial-gradient(circle, rgba(125, 249, 210, 0.12), transparent 64%);
  transform: translate(42%, 6%);
}

.site-header {
  width: var(--page-width);
  margin: 20px auto 0;
  padding: 16px 20px;
  position: sticky;
  top: 18px;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(6, 14, 27, 0.68);
  backdrop-filter: blur(18px);
  box-shadow: 0 14px 50px rgba(0, 0, 0, 0.22);
}

.brand {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background:
    linear-gradient(145deg, rgba(125, 249, 210, 0.28), rgba(61, 124, 255, 0.28)),
    rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(125, 249, 210, 0.24);
  box-shadow: inset 0 0 30px rgba(255, 255, 255, 0.04);
}

.brand-mark span {
  width: 18px;
  height: 18px;
  border-radius: 6px;
  transform: rotate(45deg);
  background: linear-gradient(135deg, var(--accent), #66a8ff);
  box-shadow: 0 0 28px rgba(125, 249, 210, 0.3);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.brand-copy strong {
  font-family: var(--display);
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.brand-copy small {
  color: var(--muted);
  font-size: 0.72rem;
  margin-top: 4px;
}

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

.site-nav a {
  text-decoration: none;
  color: var(--text-soft);
  font-size: 0.95rem;
  padding: 10px 14px;
  border-radius: 999px;
  transition: 180ms ease;
}

.site-nav a:hover,
.site-nav a.is-current {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

main {
  width: var(--page-width);
  margin: 0 auto;
  padding-bottom: 96px;
}

.hero {
  min-height: calc(100vh - 120px);
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(440px, 0.98fr);
  gap: 42px;
  align-items: center;
  padding: 54px 0 34px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--accent);
  font-weight: 700;
  font-size: 0.83rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow-line {
  width: 52px;
  height: 1px;
  background: linear-gradient(90deg, rgba(125, 249, 210, 0), rgba(125, 249, 210, 1));
}

.hero h1,
.section h2,
.final-panel h2,
.contact h2 {
  margin: 0;
  font-family: var(--display);
  letter-spacing: -0.05em;
  line-height: 0.96;
}

.hero h1 {
  max-width: 10.2em;
  font-size: clamp(3.4rem, 6vw, 6rem);
  margin-top: 22px;
}

.hero-desc,
.final-copy p,
.contact-desc,
.delivery-grid p,
.feature-copy p,
.scenario-card p,
.workspace-card p {
  color: var(--text-soft);
  line-height: 1.8;
}

.hero-desc {
  max-width: 44rem;
  margin: 28px 0 0;
  font-size: 1.06rem;
}

.hero-actions,
.contact-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 30px;
}

.btn {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #03111d;
  background: linear-gradient(135deg, var(--accent), #a5ffe5);
  box-shadow: 0 18px 40px rgba(125, 249, 210, 0.18);
}

.btn-secondary {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.06);
}

.hero-points {
  list-style: none;
  padding: 0;
  margin: 34px 0 0;
  display: grid;
  gap: 12px;
}

.hero-points li {
  position: relative;
  padding-left: 22px;
  color: var(--text-soft);
}

.hero-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.8em;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #66a8ff);
  box-shadow: 0 0 18px rgba(125, 249, 210, 0.28);
}

.hero-stage {
  position: relative;
}

.stage-shell {
  position: relative;
  padding: 18px;
  border-radius: 34px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)),
    rgba(10, 22, 42, 0.88);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.stage-shell::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(130deg, rgba(125, 249, 210, 0.04), transparent 28%, transparent 64%, rgba(102, 168, 255, 0.08));
  pointer-events: none;
}

.stage-topbar {
  display: flex;
  gap: 8px;
  padding-bottom: 14px;
}

.stage-topbar span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.22);
}

.stage-topbar span:first-child {
  background: #ff7d8f;
}

.stage-topbar span:nth-child(2) {
  background: #ffb36b;
}

.stage-topbar span:nth-child(3) {
  background: #6de3b1;
}

.stage-body {
  display: grid;
  grid-template-columns: 148px minmax(0, 1fr);
  gap: 16px;
}

.stage-sidebar,
.stage-main {
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(6, 15, 28, 0.54);
  border-radius: 24px;
}

.stage-sidebar {
  padding: 16px 14px;
  display: grid;
  gap: 18px;
}

.stage-sidebar-group {
  display: grid;
  gap: 8px;
}

.stage-sidebar-group p {
  margin: 0 0 4px;
  font-size: 0.74rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.stage-sidebar-group span {
  display: block;
  padding: 9px 10px;
  border-radius: 14px;
  color: var(--text-soft);
  font-size: 0.82rem;
}

.stage-sidebar-group .is-active {
  color: var(--text);
  background: rgba(125, 249, 210, 0.1);
  border: 1px solid rgba(125, 249, 210, 0.16);
}

.stage-main {
  padding: 18px;
}

.stage-banner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 18px;
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(125, 249, 210, 0.11), rgba(102, 168, 255, 0.12));
}

.stage-banner strong {
  display: block;
  font-size: 1.02rem;
}

.stage-banner p {
  margin: 8px 0 0;
  color: var(--text-soft);
  font-size: 0.92rem;
}

.stage-banner span {
  padding: 9px 12px;
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--accent);
  border: 1px solid rgba(125, 249, 210, 0.16);
}

.stage-kpis {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.stage-kpis article,
.stage-panels section,
.signal-bar > div,
.workspace-card,
.scenario-card,
.delivery-grid article,
.final-panel,
.contact-panel {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.18);
}

.stage-kpis article {
  border-radius: 20px;
  padding: 16px;
}

.stage-kpis small {
  display: block;
  color: var(--muted);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.stage-kpis strong,
.signal-bar strong {
  display: block;
  margin-top: 12px;
  font-family: var(--display);
  font-size: clamp(2.1rem, 3vw, 2.8rem);
  letter-spacing: -0.06em;
}

.stage-kpis span,
.signal-bar span {
  display: block;
  margin-top: 8px;
  color: var(--text-soft);
  font-size: 0.92rem;
  line-height: 1.6;
}

.stage-panels {
  display: grid;
  grid-template-columns: 1.15fr 1fr 0.95fr;
  gap: 12px;
  margin-top: 12px;
}

.stage-panels section {
  border-radius: 20px;
  padding: 16px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.panel-head strong {
  font-size: 0.98rem;
}

.panel-head span {
  color: var(--muted);
  font-size: 0.75rem;
}

.mini-chart {
  height: 140px;
  margin-top: 22px;
  display: flex;
  align-items: end;
  gap: 10px;
}

.mini-chart span {
  flex: 1;
  border-radius: 999px 999px 10px 10px;
  background: linear-gradient(180deg, rgba(125, 249, 210, 0.94), rgba(102, 168, 255, 0.36));
}

.panel-list {
  padding: 0;
  list-style: none;
  margin: 20px 0 0;
  display: grid;
  gap: 10px;
}

.panel-list li {
  padding-left: 18px;
  position: relative;
  color: var(--text-soft);
}

.panel-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.74em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}

.panel-accent {
  background:
    linear-gradient(180deg, rgba(255, 179, 107, 0.1), transparent),
    var(--panel);
}

.panel-accent p {
  color: var(--text-soft);
  margin: 16px 0 0;
}

.signal-bar {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 20px;
}

.signal-bar > div {
  padding: 22px 20px;
  border-radius: 22px;
}

.section {
  padding: 120px 0 0;
}

.section-head {
  max-width: 760px;
  margin: 0 auto 42px;
  text-align: center;
}

.section-head-left {
  margin-left: 0;
  text-align: left;
}

.section-head p,
.final-tag,
.contact-tag {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section h2,
.final-panel h2,
.contact h2 {
  font-size: clamp(2.2rem, 4.2vw, 4rem);
}

.feature-stack {
  display: grid;
  gap: 18px;
}

.feature-row {
  display: grid;
  grid-template-columns: 84px minmax(0, 1.3fr) minmax(280px, 0.9fr);
  gap: 28px;
  padding: 28px 0;
  border-top: 1px solid var(--line);
}

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

.feature-index {
  font-family: var(--display);
  color: var(--muted);
  font-size: 1.55rem;
  letter-spacing: -0.08em;
}

.feature-copy h3,
.workspace-card h3,
.scenario-card h3,
.delivery-grid h3 {
  margin: 0 0 12px;
  font-size: 1.4rem;
}

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

.feature-list li {
  padding: 14px 16px;
  border-radius: 18px;
  color: var(--text-soft);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.section-contrast {
  position: relative;
}

.workspace-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.workspace-card,
.scenario-card,
.delivery-grid article,
.contact-panel {
  border-radius: 26px;
  padding: 24px;
}

.workspace-tag {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  margin-bottom: 18px;
  color: var(--accent);
  border: 1px solid rgba(125, 249, 210, 0.18);
  background: rgba(125, 249, 210, 0.08);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.workspace-card ol {
  padding-left: 18px;
  margin: 22px 0 0;
  color: var(--text-soft);
  display: grid;
  gap: 10px;
}

.scenario-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.scenario-card {
  min-height: 230px;
  display: flex;
  flex-direction: column;
}

.scenario-card span {
  font-family: var(--display);
  color: var(--accent-warm);
  font-size: 2rem;
  letter-spacing: -0.06em;
}

.scenario-card h3 {
  margin-top: 16px;
}

.delivery-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.final-panel {
  margin-top: 120px;
  border-radius: 34px;
  padding: 34px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.86fr);
  gap: 24px;
  background:
    linear-gradient(135deg, rgba(125, 249, 210, 0.08), rgba(102, 168, 255, 0.08)),
    var(--panel-strong);
}

.final-copy {
  display: grid;
  align-content: center;
  gap: 18px;
}

.contact {
  padding: 120px 0 0;
}

.contact-panel {
  display: grid;
  justify-items: start;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent),
    rgba(7, 18, 33, 0.92);
}

.site-footer {
  width: var(--page-width);
  margin: 32px auto 0;
  padding: 26px 0 48px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font-size: 0.92rem;
  border-top: 1px solid var(--line);
}

.footer-records {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
}

.footer-records a {
  color: var(--muted);
  text-decoration: none;
}

.footer-records a:hover {
  color: var(--text);
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 720ms cubic-bezier(0.2, 0.72, 0.2, 1), transform 720ms cubic-bezier(0.2, 0.72, 0.2, 1);
}

.reveal.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1120px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 42px;
  }

  .hero h1 {
    max-width: 11em;
  }

  .feature-row {
    grid-template-columns: 72px 1fr;
  }

  .feature-list {
    grid-column: 2;
  }

  .workspace-grid,
  .scenario-layout,
  .delivery-grid,
  .signal-bar,
  .stage-kpis,
  .stage-panels,
  .final-panel {
    grid-template-columns: 1fr 1fr;
  }

  .stage-panels section:last-child,
  .final-panel > *:first-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 820px) {
  :root {
    --page-width: min(100vw - 28px, 1000px);
  }

  .site-header {
    margin-top: 12px;
    padding: 14px 16px;
    border-radius: 28px;
    position: static;
  }

  .site-nav {
    gap: 4px;
  }

  .site-nav a {
    font-size: 0.88rem;
    padding: 8px 10px;
  }

  .stage-body {
    grid-template-columns: 1fr;
  }

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

  .workspace-grid,
  .scenario-layout,
  .delivery-grid,
  .signal-bar,
  .stage-kpis,
  .stage-panels,
  .final-panel {
    grid-template-columns: 1fr;
  }

  .feature-row {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .feature-list {
    grid-column: auto;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .brand-copy small {
    display: none;
  }

  .site-header {
    display: block;
  }

  .brand {
    margin-bottom: 12px;
  }

  .hero h1 {
    font-size: 2.6rem;
  }

  .section,
  .contact {
    padding-top: 86px;
  }

  .stage-shell,
  .final-panel,
  .workspace-card,
  .scenario-card,
  .delivery-grid article,
  .contact-panel {
    border-radius: 24px;
  }

  .stage-main,
  .workspace-card,
  .scenario-card,
  .delivery-grid article,
  .contact-panel,
  .final-panel {
    padding: 18px;
  }

  .stage-sidebar {
    grid-template-columns: 1fr;
  }
}