:root {
  color-scheme: light;
  --page: #fafafa;
  --paper: #ffffff;
  --ink: #050505;
  --text: #4f4f4f;
  --muted: #777777;
  --line: #e8e8e8;
  --soft: #f6f7f9;
  --blue: #2458ff;
  --navy: #061525;
  --dark: #08111f;
  --green: #0f5134;
  --shadow-soft: 0 12px 36px rgba(10, 18, 30, 0.08);
  font-family: Inter, "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 0;
}

html,
body {
  max-width: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--page);
  color: var(--text);
  font-size: 16px;
  overscroll-behavior-y: contain;
}

a,
button {
  font: inherit;
}

a {
  color: inherit;
}

button {
  cursor: pointer;
}

.site-header {
  position: sticky;
  top: 16px;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  width: min(760px, calc(100% - 28px));
  height: 54px;
  margin: 16px auto 0;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 8px 28px rgba(14, 18, 24, 0.08);
  backdrop-filter: blur(16px);
}

.brand,
.nav-links,
.hero-actions,
.modal-top,
.site-footer {
  display: flex;
  align-items: center;
}

.brand {
  gap: 7px;
  padding: 6px 10px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.site-header .brand {
  font-size: 19px;
}

.brand img {
  width: 18px;
  height: 18px;
  border-radius: 5px;
}

.nav-links {
  justify-content: center;
  gap: 2px;
}

.nav-links a,
.header-cta {
  border-radius: 999px;
  padding: 7px 11px;
  color: #777;
  font-size: 16px;
  line-height: 18px;
  text-decoration: none;
  white-space: nowrap;
}

.nav-links a:hover {
  background: #f2f3f5;
  color: var(--ink);
}

.header-cta {
  color: #fff;
  background: var(--blue);
  font-size: 14px;
  font-weight: 600;
}

main {
  width: min(1280px, calc(100% - 48px));
  margin: 0 auto;
}

.hero-section {
  position: relative;
  min-height: 760px;
  padding: 34px 0 34px;
  isolation: isolate;
  color: var(--text);
}

.quantum-hero-bg {
  position: absolute;
  top: -80px;
  bottom: -34px;
  left: 50%;
  z-index: 0;
  width: 100vw;
  transform: translateX(-50%);
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(circle at 58% 48%, rgba(44, 92, 255, 0.14), transparent 34%),
    radial-gradient(circle at 18% 22%, rgba(72, 88, 108, 0.1), transparent 28%),
    linear-gradient(180deg, #ffffff 0%, #f2f5f9 58%, #fafafa 100%);
}

.quantum-hero-bg::before,
.quantum-hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.quantum-hero-bg::before {
  z-index: 2;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.54), transparent 18%, transparent 82%, rgba(255, 255, 255, 0.52)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.26), transparent 54%, rgba(250, 250, 250, 0.88) 100%);
}

.quantum-hero-bg::after {
  z-index: 3;
  opacity: 0.1;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='.35'/%3E%3C/svg%3E");
}

.quantum-hero-bg canvas {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: block;
  width: 100%;
  height: 100%;
  filter: contrast(1.22);
}

.hero-main {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(420px, 0.96fr);
  gap: 64px;
  align-items: center;
}

.hero-visual {
  position: relative;
  min-height: 510px;
  border-radius: 0;
  overflow: visible;
  background: transparent;
  box-shadow: none;
}

.research-backdrop {
  display: none;
}

.research-backdrop span {
  position: absolute;
  width: 290px;
  height: 16px;
  background: rgba(255, 255, 255, 0.18);
  transform: rotate(-24deg);
}

.research-backdrop span:nth-child(1) {
  left: 28px;
  top: 28px;
}

.research-backdrop span:nth-child(2) {
  right: -32px;
  top: 96px;
}

.research-backdrop span:nth-child(3) {
  left: 180px;
  bottom: 62px;
}

.hero-demo-console {
  position: absolute;
  inset: 28px 34px;
  z-index: 1;
  display: grid;
  grid-template-rows: auto auto auto minmax(0, 1fr) auto;
  gap: 10px;
  border: 1px solid rgba(226, 232, 240, 0.18);
  border-radius: 14px;
  padding: 16px;
  color: #fff;
  background:
    radial-gradient(circle at 22% 16%, rgba(67, 116, 190, 0.2), transparent 32%),
    linear-gradient(145deg, rgba(20, 32, 48, 0.94), rgba(12, 22, 36, 0.9));
  box-shadow: 0 24px 58px rgba(12, 22, 36, 0.18);
  backdrop-filter: blur(18px);
}

.hero-demo-console::before {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: 13px;
  pointer-events: none;
  background: linear-gradient(115deg, transparent 0 44%, rgba(255, 255, 255, 0.12) 49%, transparent 56% 100%);
  opacity: 0;
  transform: translateX(-26%);
  transition: opacity 240ms ease, transform 780ms ease;
}

.hero-visual.is-demo-ready .hero-demo-console::before {
  opacity: 1;
}

.hero-visual.is-step-1 .hero-demo-console::before,
.hero-visual.is-step-2 .hero-demo-console::before,
.hero-visual.is-step-3 .hero-demo-console::before {
  transform: translateX(26%);
}

.hero-demo-head,
.hero-demo-pipeline,
.hero-request-card,
.hero-demo-body,
.hero-mail-strip {
  position: relative;
  z-index: 1;
}

.hero-demo-head {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #d4dfeb;
  font-size: 11px;
  font-weight: 700;
}

.hero-demo-head span,
.hero-mail-strip > span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #42d989;
  box-shadow: 0 0 0 5px rgba(66, 217, 137, 0.13);
}

.hero-demo-head em {
  margin-left: auto;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  padding: 4px 7px;
  color: rgba(255, 255, 255, 0.64);
  font-size: 10px;
  font-style: normal;
}

.hero-request-card {
  display: grid;
  gap: 4px;
  border-radius: 10px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.94);
  color: #111;
  transform: translateY(0);
  transition: transform 420ms ease, box-shadow 420ms ease;
}

.hero-visual.is-step-1 .hero-request-card,
.hero-visual.is-step-2 .hero-request-card {
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.16);
}

.hero-request-card span,
.hero-request-card small {
  color: #8a8f96;
  font-size: 11px;
}

.hero-request-card strong {
  color: #10151f;
  font-size: 16px;
  line-height: 1.2;
}

.hero-demo-pipeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.hero-demo-pipeline button {
  min-width: 0;
  min-height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 9px;
  padding: 8px;
  color: rgba(255, 255, 255, 0.68);
  background: rgba(255, 255, 255, 0.07);
  text-align: left;
  transition: color 240ms ease, background 240ms ease, border-color 240ms ease, transform 240ms ease;
}

.hero-demo-pipeline button.active {
  border-color: rgba(66, 217, 137, 0.5);
  color: #fff;
  background: rgba(36, 88, 255, 0.38);
  transform: translateY(-2px);
}

.hero-demo-pipeline span {
  display: block;
  margin-bottom: 3px;
  color: rgba(255, 255, 255, 0.48);
  font-size: 10px;
  font-weight: 700;
}

.hero-demo-pipeline strong {
  display: block;
  overflow: hidden;
  font-size: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.hero-demo-body {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 12px;
  min-height: 0;
}

.hero-source-list {
  align-content: start;
  display: grid;
  gap: 6px;
}

.hero-source-list p {
  display: grid;
  grid-template-columns: 42px 1fr;
  align-items: center;
  min-width: 0;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 9px;
  padding: 7px 9px;
  color: rgba(255, 255, 255, 0.64);
  background: rgba(255, 255, 255, 0.06);
  transform: translateX(0);
  transition: color 260ms ease, background 260ms ease, border-color 260ms ease, transform 260ms ease;
}

.hero-source-list p.active {
  border-color: rgba(66, 217, 137, 0.46);
  color: #fff;
  background: rgba(66, 217, 137, 0.12);
  transform: translateX(4px);
}

.hero-source-list span {
  color: rgba(255, 255, 255, 0.46);
  font-size: 11px;
}

.hero-source-list strong {
  overflow: hidden;
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.hero-report-panel {
  display: grid;
  align-content: start;
  gap: 12px;
  border-radius: 11px;
  padding: 13px;
  background: rgba(255, 255, 255, 0.95);
}

.hero-report-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: #8a8f96;
  font-size: 11px;
  font-weight: 700;
}

.hero-report-title strong {
  color: var(--blue);
  font-size: 17px;
}

.hero-analysis-bar {
  color: #20242a;
  font-size: 12px;
}

.hero-analysis-bar::after {
  background: #edf0f3;
}

.hero-mail-strip {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 30px;
  border-radius: 999px;
  padding: 0 12px;
  color: rgba(255, 255, 255, 0.82);
  background: rgba(255, 255, 255, 0.08);
}

.hero-mail-strip strong {
  color: #fff;
  font-size: 12px;
}

.hero-mail-strip small {
  margin-left: auto;
  color: rgba(255, 255, 255, 0.48);
  font-size: 11px;
}

.workflow-modal {
  position: absolute;
  inset: 56px auto auto 50%;
  width: min(355px, calc(100% - 64px));
  min-height: 245px;
  transform: translateX(-50%);
  border-radius: 6px;
  background: #fff;
  box-shadow: 0 20px 44px rgba(0, 0, 0, 0.2);
  padding: 50px 42px;
  text-align: center;
}

.modal-top {
  position: absolute;
  top: 16px;
  left: 18px;
  gap: 6px;
  color: #b5b5b5;
  font-size: 11px;
  font-weight: 500;
}

.modal-top span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #2f7d5b;
}

.modal-main-action {
  width: 100%;
  min-height: 48px;
  border: 1px solid #ededed;
  border-radius: 5px;
  color: #202020;
  background: #fff;
  font-size: 13px;
  font-weight: 600;
}

.workflow-modal p {
  margin: 18px 0 0;
  color: #c4c4c4;
  font-size: 12px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-brand-lockup {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 16px;
  width: fit-content;
  margin: 0 0 34px;
}

.hero-brand-lockup img {
  width: 74px;
  height: 74px;
  border-radius: 18px;
  box-shadow: 0 16px 36px rgba(14, 18, 24, 0.12);
}

.hero-brand-lockup strong {
  display: block;
  color: var(--ink);
  font-size: clamp(2rem, 3.2vw, 3.35rem);
  line-height: 1;
  white-space: nowrap;
}

.hero-brand-lockup span {
  display: block;
  margin-top: 8px;
  color: #777;
  font-size: 14px;
  font-weight: 600;
}

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

h1,
h2,
h3 {
  color: var(--ink);
  letter-spacing: 0;
}

h1 {
  max-width: 590px;
  margin-bottom: 18px;
  font-size: clamp(2.2rem, 3.6vw, 3.55rem);
  font-weight: 650;
  line-height: 1.08;
}

.hero-lede {
  max-width: 560px;
  margin-bottom: 22px;
  color: #666;
  font-size: 15px;
  line-height: 1.65;
}

.hero-section .eyebrow {
  color: var(--blue);
}

.hero-copy h1 {
  color: var(--ink);
}

.hero-actions {
  gap: 12px;
  margin-bottom: 34px;
}

.primary-action,
.secondary-action {
  display: inline-grid;
  min-height: 44px;
  place-items: center;
  border-radius: 8px;
  padding: 0 28px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.primary-action {
  color: #fff;
  background: var(--blue);
}

.secondary-action {
  border: 1px solid #e5e5e5;
  color: var(--ink);
  background: transparent;
}

.hero-section .secondary-action {
  border-color: rgba(16, 24, 40, 0.14);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.66);
  backdrop-filter: blur(12px);
}

.value-accordion {
  display: grid;
  gap: 4px;
  max-width: 566px;
}

.value-accordion div {
  display: grid;
  grid-template-columns: 34px 1fr;
  align-items: center;
  min-height: 40px;
  border-radius: 8px;
  padding: 8px 12px;
  color: var(--ink);
  font-size: 14px;
}

.value-accordion div.active {
  background: rgba(238, 240, 244, 0.72);
}

.value-accordion span {
  color: #9a9a9a;
  font-size: 12px;
  font-weight: 600;
}

.value-accordion strong {
  font-size: 16px;
  font-weight: 520;
}

.proof-strip {
  position: relative;
  z-index: 1;
  padding: 28px 0 0;
  margin-top: 42px;
  border-top: 1px solid rgba(16, 24, 40, 0.1);
  text-align: center;
}

.proof-strip > p {
  display: inline-flex;
  gap: 6px;
  margin-bottom: 20px;
  color: #8b8f96;
  font-size: 18px;
  font-weight: 600;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  width: min(960px, 100%);
  margin: 0 auto;
  gap: 26px;
}

.proof-grid article {
  min-width: 0;
}

.proof-grid strong {
  display: block;
  color: var(--ink);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
  white-space: nowrap;
}

.proof-grid span {
  display: block;
  margin-top: 4px;
  color: #9298a0;
  font-size: 12px;
}

.section-geometry-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.section-geometry-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.section-geometry-bg canvas {
  display: block;
  width: 100%;
  height: 100%;
  filter: contrast(1.18);
}

.platform-geometry {
  opacity: 1;
  background:
    radial-gradient(circle at 56% 48%, rgba(36, 88, 255, 0.16), transparent 42%),
    linear-gradient(180deg, transparent, rgba(234, 239, 247, 0.62));
}

.platform-geometry::after {
  background:
    linear-gradient(180deg, rgba(250, 250, 250, 0.72) 0%, transparent 16%, transparent 82%, rgba(250, 250, 250, 0.82) 100%);
}

.demo-geometry {
  opacity: 1;
  background:
    radial-gradient(circle at 42% 50%, rgba(36, 88, 255, 0.14), transparent 42%),
    radial-gradient(circle at 70% 38%, rgba(50, 163, 109, 0.12), transparent 30%);
}

.demo-geometry::after {
  background:
    linear-gradient(90deg, rgba(250, 250, 250, 0.34), transparent 24%, transparent 76%, rgba(250, 250, 250, 0.38)),
    linear-gradient(180deg, rgba(250, 250, 250, 0.74), transparent 20%, transparent 78%, rgba(250, 250, 250, 0.8));
}

.boundary-geometry {
  opacity: 1;
  background:
    radial-gradient(circle at 50% 52%, rgba(36, 88, 255, 0.14), transparent 40%),
    linear-gradient(180deg, rgba(246, 247, 249, 0.5), transparent);
}

.boundary-geometry::after {
  background:
    linear-gradient(180deg, rgba(250, 250, 250, 0.78), transparent 24%, transparent 76%, rgba(250, 250, 250, 0.82));
}

.platform-section {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 1120px;
  padding: 226px 0 160px;
  text-align: center;
}

.platform-section > :not(.section-geometry-bg),
.demo-section > :not(.section-geometry-bg),
.boundary-section > :not(.section-geometry-bg) {
  position: relative;
  z-index: 1;
}

.built-label {
  color: #b0b0b0;
  font-size: 12px;
}

.platform-section h2 {
  max-width: 780px;
  margin: 0 auto 48px;
  font-size: clamp(2.2rem, 3.63vw, 3.18rem);
  font-weight: 650;
  line-height: 1.12;
}

.platform-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 64px;
}

.platform-tabs button {
  min-height: 40px;
  border: 0;
  border-radius: 999px;
  padding: 0 20px;
  color: #777;
  background: #f0f1f4;
  font-size: 14px;
  font-weight: 600;
}

.platform-tabs .active {
  color: #fff;
  background: var(--blue);
}

.platform-section.is-switching .feature-copy,
.platform-section.is-switching .product-window {
  animation: contentPulse 260ms ease both;
}

@keyframes contentPulse {
  from {
    opacity: 0.3;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.feature-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 520px;
  align-items: center;
  gap: 90px;
  text-align: left;
}

.feature-copy h3 {
  margin-bottom: 14px;
  font-size: 30px;
  line-height: 1.2;
}

.feature-copy p {
  max-width: 560px;
  color: #666;
  font-size: 15px;
  line-height: 1.75;
}

.feature-copy ul {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  color: #222;
  font-size: 16px;
}

.feature-copy li {
  opacity: 0;
  transform: translateY(12px);
}

.feature-copy ul.is-visible li {
  animation: featureItemReveal 520ms cubic-bezier(0.22, 1, 0.36, 1) both;
  animation-delay: calc(var(--feature-item-index, 0) * 145ms);
}

.feature-copy li::before {
  content: "✓";
  margin-right: 9px;
  color: var(--blue);
  font-weight: 800;
}

@keyframes featureItemReveal {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .feature-copy li {
    opacity: 1;
    transform: none;
  }

  .feature-copy ul.is-visible li {
    animation: none;
  }
}

.dark-product-card {
  display: grid;
  place-items: center;
  width: 520px;
  height: 340px;
  border-radius: 0;
  background: transparent;
}

.dark-product-card[data-platform-demo-key="equity"] {
  background: transparent;
}

.dark-product-card[data-platform-demo-key="sector"] {
  background: transparent;
}

.dark-product-card[data-platform-demo-key="evidence"] {
  background: transparent;
}

.dark-product-card[data-platform-demo-key="risk"] {
  background: transparent;
}

.product-window {
  position: relative;
  overflow: hidden;
  width: 360px;
  border: 1px solid rgba(16, 24, 40, 0.08);
  border-radius: 10px;
  background: #fff;
  padding: 18px;
  box-shadow: 0 24px 56px rgba(16, 24, 40, 0.12);
}

.product-window::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(115deg, transparent 0 38%, rgba(36, 88, 255, 0.08) 48%, transparent 58% 100%);
  opacity: 0;
  transform: translateX(-42%);
}

.dark-product-card.is-platform-demo-ready .product-window::after {
  animation: productWindowScan 1280ms ease both;
}

.product-head {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 32px;
  margin-bottom: 12px;
  border-radius: 5px;
  background: #f7f7f7;
  padding: 0 10px;
  color: #111;
  font-size: 12px;
}

.product-head span {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #32a36d;
}

.product-head strong {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.product-head em {
  margin-left: auto;
  color: var(--blue);
  font-size: 11px;
  font-style: normal;
  font-weight: 800;
  white-space: nowrap;
}

.product-progress {
  position: relative;
  overflow: hidden;
  height: 7px;
  margin-bottom: 14px;
  border-radius: 999px;
  background: #edf0f3;
}

.product-progress b {
  display: block;
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--blue), #32a36d);
  transition: width 540ms cubic-bezier(0.22, 1, 0.36, 1);
}

.checkline {
  display: flex;
  align-items: center;
  min-height: 30px;
  color: #777;
  font-size: 13px;
  opacity: 0.62;
  transform: translateX(0);
  transition: color 260ms ease, opacity 260ms ease, transform 260ms ease;
}

.checkline::before {
  content: "✓";
  display: grid;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-right: 8px;
  place-items: center;
  border-radius: 50%;
  background: #f1f3f5;
  color: #b4b4b4;
  font-size: 11px;
  transition: color 260ms ease, background 260ms ease, box-shadow 260ms ease;
}

.checkline.complete::before {
  color: #32a36d;
}

.checkline.complete {
  color: #1b1f24;
  opacity: 1;
}

.checkline.complete::before {
  background: rgba(50, 163, 109, 0.12);
}

.checkline.is-current {
  color: #111;
  opacity: 1;
  transform: translateX(5px);
}

.checkline.is-current::before {
  color: #fff;
  background: var(--blue);
  box-shadow: 0 0 0 5px rgba(36, 88, 255, 0.1);
}

.checkline.is-pending {
  color: #8a9299;
}

@keyframes productWindowScan {
  0% {
    opacity: 0;
    transform: translateX(-42%);
  }

  34% {
    opacity: 1;
  }

  100% {
    opacity: 0;
    transform: translateX(42%);
  }
}

.demo-section {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(400px, 0.96fr);
  gap: 82px;
  align-items: center;
  min-height: 920px;
  padding: 120px 0;
}

.demo-stage {
  display: grid;
  place-items: center;
  min-height: 540px;
  border-radius: 0;
  background: transparent;
}

.demo-terminal {
  display: grid;
  gap: 12px;
  width: min(470px, calc(100% - 52px));
  border: 1px solid rgba(226, 232, 240, 0.18);
  border-radius: 12px;
  background:
    radial-gradient(circle at 24% 16%, rgba(67, 116, 190, 0.18), transparent 32%),
    linear-gradient(145deg, rgba(28, 42, 60, 0.94), rgba(14, 24, 38, 0.9));
  padding: 18px;
  color: #f7fafc;
  box-shadow: 0 24px 56px rgba(12, 22, 36, 0.16);
  backdrop-filter: blur(18px);
}

.demo-terminal-head {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 28px;
  color: #d7dde5;
  font-size: 12px;
  font-weight: 700;
}

.demo-terminal-head span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #42d989;
}

.demo-terminal-head em {
  margin-left: auto;
  border: 1px solid rgba(226, 232, 240, 0.14);
  border-radius: 999px;
  padding: 4px 8px;
  color: rgba(226, 232, 240, 0.62);
  font-size: 10px;
  font-style: normal;
  font-weight: 600;
}

.report-brief-card {
  display: grid;
  gap: 4px;
  border-radius: 10px;
  padding: 14px 16px;
  color: #111827;
  background: rgba(255, 255, 255, 0.94);
}

.report-brief-card span,
.report-brief-card small {
  color: #7b8490;
  font-size: 12px;
}

.report-brief-card strong {
  color: #111827;
  font-size: 18px;
  line-height: 1.2;
}

.research-ledger {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.research-ledger article {
  display: grid;
  gap: 5px;
  min-width: 0;
  border: 1px solid rgba(226, 232, 240, 0.12);
  border-radius: 9px;
  padding: 10px;
  color: rgba(226, 232, 240, 0.62);
  background: rgba(255, 255, 255, 0.055);
}

.research-ledger article.is-current {
  border-color: rgba(66, 217, 137, 0.32);
  color: #fff;
  background: rgba(66, 217, 137, 0.1);
}

.research-ledger span {
  color: rgba(226, 232, 240, 0.42);
  font-size: 10px;
  font-weight: 800;
}

.research-ledger strong {
  overflow: hidden;
  color: inherit;
  font-size: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.research-ledger small {
  overflow: hidden;
  color: rgba(226, 232, 240, 0.48);
  font-size: 10px;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.evidence-stack {
  display: grid;
  gap: 10px;
  border-radius: 10px;
  padding: 13px 14px;
  background: rgba(7, 16, 33, 0.34);
}

.analysis-bar {
  display: grid;
  gap: 8px;
  color: #dce6f0;
  font-size: 13px;
}

.analysis-bar::after {
  content: "";
  display: block;
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  grid-row: 2;
}

.analysis-bar b {
  display: block;
  width: 0%;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, #2458ff, #42d989);
  grid-row: 2;
  z-index: 1;
}

.evidence-meter {
  grid-template-columns: 52px 1fr auto;
  align-items: center;
  column-gap: 12px;
  color: rgba(226, 232, 240, 0.78);
  font-size: 12px;
}

.evidence-meter::after,
.evidence-meter b {
  grid-column: 2;
  grid-row: 1;
  height: 6px;
}

.evidence-meter b {
  background: linear-gradient(90deg, #4d78ff, #42d989);
}

.evidence-meter span {
  color: rgba(226, 232, 240, 0.88);
  font-weight: 700;
}

.evidence-meter em {
  color: rgba(226, 232, 240, 0.5);
  font-size: 11px;
  font-style: normal;
  white-space: nowrap;
}

.delivery-strip {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  border-radius: 999px;
  padding: 0 13px;
  color: rgba(226, 232, 240, 0.78);
  background: rgba(255, 255, 255, 0.07);
}

.delivery-strip span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #42d989;
  box-shadow: 0 0 0 5px rgba(66, 217, 137, 0.1);
}

.delivery-strip strong {
  color: #fff;
  font-size: 12px;
}

.delivery-strip small {
  margin-left: auto;
  color: rgba(226, 232, 240, 0.46);
  font-size: 11px;
}

.hero-report-panel .hero-analysis-bar {
  color: #20242a;
  font-size: 12px;
}

.hero-report-panel .hero-analysis-bar::after {
  background: #edf0f3;
}

.theme-heatmap {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 22px;
}

.theme-heatmap article {
  --heat: 0;
  border-radius: 10px;
  background: color-mix(in srgb, #2458ff calc(var(--heat) * 1%), rgba(255, 255, 255, 0.12));
  padding: 14px 10px;
  color: #fff;
  text-align: center;
  font-size: 13px;
}

.demo-notes h2 {
  margin-bottom: 22px;
  font-size: clamp(2.2rem, 3.6vw, 3.6rem);
  line-height: 1.08;
}

.demo-note-list {
  display: grid;
  gap: 16px;
}

.demo-note-list article {
  display: grid;
  grid-template-columns: 44px 1fr;
  column-gap: 14px;
  border-top: 1px solid #eeeeee;
  padding-top: 16px;
}

.demo-note-list span {
  color: #b0b0b0;
  font-size: 12px;
  font-weight: 800;
}

.demo-note-list strong {
  display: block;
  color: var(--ink);
  font-size: 17px;
}

.demo-note-list p {
  grid-column: 2;
  margin: 6px 0 0;
  color: #666;
  line-height: 1.6;
}

.boundary-section {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: grid;
  justify-items: center;
  align-content: center;
  text-align: center;
  min-height: 300px;
  margin-bottom: 120px;
  padding: 82px 0;
  border-top: 1px solid #ededed;
  border-bottom: 1px solid #ededed;
}

.boundary-section h2 {
  max-width: 860px;
  margin: 0 auto 20px;
  font-size: clamp(2.1rem, 3.7vw, 4rem);
  line-height: 1.08;
}

.boundary-copy {
  display: grid;
  gap: 10px;
  max-width: 760px;
  margin: 0 auto 36px;
}

.boundary-copy p {
  margin: 0;
  color: #666;
  line-height: 1.7;
}

.invite-action {
  display: grid;
  justify-items: center;
  gap: 16px;
  width: min(280px, 100%);
}

.invite-kicker {
  margin: 0;
  color: #111;
  font-size: clamp(1.45rem, 2.3vw, 2.1rem);
  font-weight: 800;
  line-height: 1;
}

.invite-cta {
  position: relative;
  display: grid;
  align-content: center;
  width: 100%;
  min-width: 0;
  min-height: 58px;
  padding: 0 30px;
  justify-items: center;
  overflow: hidden;
  border-radius: 999px;
  background: var(--blue);
  color: #fff;
  text-decoration: none;
  box-shadow: 0 26px 58px rgba(36, 88, 255, 0.26);
}

.invite-cta span {
  font-size: clamp(1.35rem, 2.25vw, 2rem);
  font-weight: 800;
  line-height: 1;
}

.invite-cta strong {
  font-size: clamp(2rem, 2.55vw, 2.36rem);
  line-height: 1;
}

.invite-cta i {
  position: absolute;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.42);
  opacity: 0;
  transform: translate(-50%, -50%) scale(1);
  pointer-events: none;
}

.invite-cta.is-clicking {
  animation: ctaClick 540ms cubic-bezier(0.22, 1, 0.36, 1);
}

.invite-cta.is-clicking i {
  animation: ctaRipple 620ms cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes ctaClick {
  0% {
    transform: scale(1);
  }

  42% {
    transform: scale(0.965);
  }

  100% {
    transform: scale(1);
  }
}

@keyframes ctaRipple {
  0% {
    opacity: 0.55;
    transform: translate(-50%, -50%) scale(1);
  }

  100% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(28);
  }
}

.site-footer {
  justify-content: space-between;
  width: min(1280px, calc(100% - 48px));
  min-height: 72px;
  margin: 0 auto;
  border-top: 1px solid #ededed;
  color: #8a8a8a;
  font-size: 12px;
}

.brand.small {
  padding-left: 0;
}

.site-footer a {
  text-decoration: none;
}

@media (min-width: 981px) and (prefers-reduced-motion: no-preference) {
  html {
    scroll-snap-type: none;
  }

  .hero-section,
  .platform-section,
  .demo-section,
  .boundary-section,
  .site-footer {
    scroll-snap-align: start;
    scroll-snap-stop: always;
  }

  .hero-section,
  .platform-section,
  .demo-section,
  .boundary-section {
    min-height: 100vh;
  }

  .hero-section {
    display: grid;
    align-content: center;
  }

  .hero-brand-lockup {
    position: absolute;
    top: 86px;
    left: 0;
    z-index: 2;
    margin: 0;
  }

  .platform-section {
    display: grid;
    align-content: center;
    padding: 92px 0;
  }

  .demo-section {
    display: grid;
    align-content: center;
    padding: 72px 0;
  }

  .boundary-section {
    margin-bottom: 0;
  }

  .site-footer {
    scroll-snap-align: end;
  }
}

@media (max-width: 980px) {
  .site-header {
    width: min(100% - 24px, 668px);
  }

  .nav-links {
    display: none;
  }

  .site-header {
    grid-template-columns: auto 1fr;
  }

  .header-cta {
    justify-self: end;
  }

  main {
    width: min(100% - 28px, 1280px);
  }

  .hero-main,
  .feature-split,
  .demo-section,
  .boundary-section {
    grid-template-columns: 1fr;
  }

  .hero-section {
    padding-top: 48px;
  }

  .hero-main {
    gap: 32px;
  }

  .hero-visual {
    order: -1;
    min-height: 440px;
  }

  .proof-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .platform-section {
    min-height: auto;
    padding: 120px 0;
  }

  .dark-product-card {
    width: 100%;
  }

  .demo-section {
    min-height: auto;
    padding: 80px 0;
  }

  .demo-stage {
    min-height: 420px;
  }
}

@media (max-width: 560px) {
  .site-header {
    height: 44px;
  }

  .brand {
    padding: 5px 8px;
  }

  .header-cta {
    padding: 7px 10px;
    font-size: 12px;
  }

  h1 {
    font-size: clamp(2.2rem, 11vw, 3.2rem);
  }

  .hero-brand-lockup {
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 24px;
  }

  .hero-brand-lockup img {
    width: 56px;
    height: 56px;
    border-radius: 14px;
  }

  .hero-brand-lockup strong {
    white-space: normal;
    font-size: 2rem;
  }

  .hero-actions {
    display: grid;
  }

  .primary-action,
  .secondary-action {
    width: 100%;
  }

  .hero-visual {
    min-height: 560px;
  }

  .hero-demo-console {
    inset: 18px;
    padding: 14px;
  }

  .hero-demo-pipeline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 6px;
  }

  .hero-demo-pipeline button {
    min-height: 44px;
    padding: 7px 6px;
  }

  .hero-demo-pipeline strong {
    font-size: 12px;
  }

  .hero-demo-body {
    grid-template-columns: 0.86fr 1.14fr;
    gap: 8px;
  }

  .hero-source-list {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .hero-source-list p {
    grid-template-columns: 1fr;
    gap: 3px;
    padding: 6px 7px;
  }

  .hero-source-list span {
    font-size: 10px;
  }

  .hero-source-list strong {
    font-size: 11px;
  }

  .hero-report-panel {
    gap: 8px;
    padding: 10px;
  }

  .hero-report-title strong {
    font-size: 15px;
  }

  .hero-report-panel .hero-analysis-bar {
    gap: 6px;
    font-size: 11px;
  }

  .hero-mail-strip {
    align-items: center;
    flex-wrap: nowrap;
    border-radius: 999px;
    padding: 0 10px;
  }

  .hero-mail-strip small {
    width: auto;
    margin-left: auto;
    font-size: 10px;
  }

  .workflow-modal {
    width: calc(100% - 44px);
    padding: 48px 24px;
  }

  .proof-grid {
    text-align: left;
  }

  .product-window {
    width: calc(100% - 40px);
  }

  .dark-product-card {
    height: 300px;
  }

  .demo-score-row {
    grid-template-columns: 1fr;
  }

  .allocation-donut {
    display: none;
  }

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

  .evidence-meter {
    grid-template-columns: 44px 1fr;
    row-gap: 3px;
  }

  .evidence-meter em {
    grid-column: 2;
    font-size: 10px;
  }

  .delivery-strip small {
    display: none;
  }

  .invite-cta {
    min-height: 96px;
  }
}