:root {
  color-scheme: dark;
  --bg: #071715;
  --panel: rgba(255, 255, 255, 0.075);
  --panel-strong: rgba(255, 255, 255, 0.13);
  --line: rgba(227, 241, 235, 0.16);
  --line-strong: rgba(227, 241, 235, 0.32);
  --text: #f4faf7;
  --muted: #b5c8c2;
  --soft: #dbe9e5;
  --jade: #48c6b6;
  --gold: #f0c15f;
  --blue: #89a7ff;
  --red: #ff8b7f;
  --ink: #061816;
  --radius: 8px;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.42);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.034) 1px, transparent 1px) 0 0 / 88px 88px,
    linear-gradient(0deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px) 0 0 / 88px 88px,
    linear-gradient(135deg, #071715 0%, #10231f 48%, #191913 100%);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(120deg, transparent 0 24%, rgba(72, 198, 182, 0.12) 24.5%, transparent 25.4% 58%, rgba(240, 193, 95, 0.1) 58.5%, transparent 59.5%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent 40%, rgba(0, 0, 0, 0.24));
}

a { color: inherit; text-decoration: none; }
button { font: inherit; }
h1, h2, h3, p { letter-spacing: 0; }

.experience-stage {
  position: relative;
  z-index: 1;
  padding: clamp(20px, 3vw, 38px) clamp(16px, 4vw, 64px) 64px;
}

.topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: clamp(22px, 3vw, 42px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand > span,
.app-logo span {
  display: grid;
  place-items: center;
  border-radius: var(--radius);
  background: linear-gradient(180deg, #fff8e7, #d9f7ee);
  color: #0b5a53;
  font-weight: 950;
  box-shadow: inset 0 -2px 0 rgba(8, 87, 80, 0.28);
}

.brand > span {
  width: 46px;
  height: 46px;
  font-size: 24px;
}

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

.brand strong { font-size: 17px; }
.brand small { color: var(--muted); font-size: 13px; }

.topnav {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 10px;
}

.topnav a {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 7px 10px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.045);
  font-size: 13px;
}

.opening {
  min-height: 370px;
  display: grid;
  grid-template-columns: minmax(360px, 0.95fr) minmax(360px, 0.65fr);
  align-items: end;
  gap: clamp(28px, 5vw, 76px);
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--gold);
  font-size: 15px;
  font-weight: 900;
}

.opening h1 {
  max-width: 900px;
  margin: 0;
  font-size: clamp(34px, 4.1vw, 56px);
  line-height: 1.05;
  font-weight: 950;
}

.lead {
  max-width: 780px;
  margin: 18px 0 0;
  color: #d7e7e2;
  font-size: clamp(16px, 1.2vw, 19px);
  line-height: 1.68;
}

.hero-actions,
.guide-actions,
.screen-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.hero-actions { margin-top: 22px; }

.hero-actions a,
.primary-action,
.ghost-action,
.screen-button {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  padding: 10px 14px;
  font-weight: 900;
  cursor: pointer;
}

.hero-actions a,
.primary-action,
.screen-button.primary {
  border: 0;
  background: linear-gradient(135deg, #f7fff8, #c9f5ea);
  color: #073b36;
  box-shadow: 0 18px 42px rgba(72, 198, 182, 0.18);
}

.ghost-action,
.screen-button {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.07);
  color: var(--soft);
}

.primary-action:disabled,
.screen-button:disabled {
  opacity: 0.66;
  cursor: wait;
}

.hero-actions span {
  color: var(--muted);
  font-size: 14px;
}

.case-card {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 20px;
  background:
    linear-gradient(135deg, rgba(240, 193, 95, 0.14), transparent 54%),
    rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.case-card small,
.case-card strong {
  display: block;
}

.case-card small {
  color: var(--gold);
  font-weight: 900;
}

.case-card strong {
  margin-top: 10px;
  font-size: clamp(20px, 2vw, 30px);
  line-height: 1.18;
}

.case-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 18px;
}

.case-stats article,
.journey-rail,
.system-frame,
.guide-panel,
.screen-card,
.insight-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(18px);
}

.case-stats article {
  min-height: 76px;
  padding: 12px;
}

.case-stats b,
.case-stats span {
  display: block;
}

.case-stats b {
  color: #fff;
  font-size: 34px;
  line-height: 1;
}

.case-stats span {
  margin-top: 8px;
  color: var(--muted);
  font-size: 12px;
}

.product-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 0 0 22px;
}

.product-summary article {
  position: relative;
  min-height: 158px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  background:
    linear-gradient(135deg, rgba(72, 198, 182, 0.14), transparent 54%),
    rgba(255, 255, 255, 0.065);
  backdrop-filter: blur(18px);
}

.product-summary article::after {
  content: "";
  position: absolute;
  inset: auto 16px 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), transparent);
  opacity: 0.72;
}

.product-summary span,
.product-summary h3,
.product-summary p {
  display: block;
  position: relative;
  z-index: 1;
}

.product-summary span {
  color: var(--gold);
  font-size: 13px;
  font-weight: 950;
}

.product-summary h3 {
  margin: 22px 0 10px;
  font-size: 23px;
  line-height: 1.15;
}

.product-summary p {
  margin: 0;
  color: var(--muted);
  line-height: 1.62;
}

.showcase-gallery {
  margin: 26px 0 34px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: clamp(18px, 2.6vw, 30px);
  background:
    radial-gradient(circle at 12% 18%, rgba(72, 198, 182, 0.18), transparent 32%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.045));
  box-shadow: var(--shadow);
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  align-items: end;
  margin-bottom: 18px;
}

.section-heading h2 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(28px, 3.2vw, 46px);
  line-height: 1.1;
}

.section-heading > p {
  max-width: 360px;
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

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

.interface-shot {
  min-width: 0;
  min-height: 266px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(3, 17, 15, 0.42), rgba(3, 17, 15, 0.18)),
    rgba(255, 255, 255, 0.07);
  box-shadow: 0 20px 58px rgba(0, 0, 0, 0.24);
}

.interface-shot.wide {
  grid-column: span 2;
}

.shot-top {
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  padding: 11px 13px;
  background: rgba(3, 17, 15, 0.62);
}

.shot-top span,
.shot-top b {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
}

.shot-top span {
  color: #e9f5f2;
  font-weight: 900;
}

.shot-top b {
  border: 1px solid rgba(72, 198, 182, 0.34);
  border-radius: 999px;
  padding: 5px 8px;
  color: #a6f1e9;
  background: rgba(72, 198, 182, 0.1);
  font-size: 12px;
}

.shot-body {
  min-height: 220px;
  padding: 16px;
}

.shot-body h3 {
  margin: 0 0 10px;
  font-size: 24px;
  line-height: 1.18;
}

.shot-body p {
  margin: 0;
  color: var(--muted);
  line-height: 1.58;
}

.library-shot {
  display: grid;
  grid-template-columns: minmax(150px, 0.8fr) minmax(0, 1.2fr);
  gap: 14px;
  align-items: stretch;
}

.mini-doc {
  min-height: 178px;
  border-radius: var(--radius);
  padding: 16px;
  background: linear-gradient(180deg, #f9f2df, #c8f2e8);
  color: #123b36;
}

.mini-doc strong,
.mini-doc span {
  display: block;
}

.mini-doc strong {
  font-size: 38px;
  line-height: 1;
}

.mini-doc span {
  margin-top: 14px;
  font-weight: 950;
  line-height: 1.35;
  word-break: break-word;
}

.mini-metrics {
  display: grid;
  gap: 10px;
}

.mini-metrics article {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  background: rgba(255, 255, 255, 0.065);
}

.mini-metrics b,
.mini-metrics span {
  display: block;
}

.mini-metrics b {
  color: #fff;
  font-size: 28px;
}

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

.shot-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.shot-tags span {
  border: 1px solid rgba(240, 193, 95, 0.26);
  border-radius: 999px;
  padding: 6px 8px;
  color: #f3e2bd;
  background: rgba(240, 193, 95, 0.08);
  font-size: 12px;
}

.shot-question {
  color: #fff !important;
  font-size: 18px;
  font-weight: 900;
}

.answer-shot {
  display: grid;
  align-content: start;
  gap: 10px;
}

.mini-option {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 11px 12px;
  color: var(--soft);
  background: rgba(255, 255, 255, 0.06);
}

.mini-option.selected {
  border-color: rgba(240, 193, 95, 0.6);
  background: rgba(240, 193, 95, 0.12);
}

.mini-option.correct {
  border-color: rgba(72, 198, 182, 0.68);
  background: rgba(72, 198, 182, 0.14);
}

.chat-shot {
  display: grid;
  align-content: start;
  gap: 10px;
}

.bubble {
  width: fit-content;
  max-width: 92%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 11px;
  color: #eaf6f3;
  background: rgba(255, 255, 255, 0.07);
  line-height: 1.48;
}

.bubble.user {
  justify-self: end;
  border-color: rgba(240, 193, 95, 0.28);
  background: rgba(240, 193, 95, 0.1);
}

.bubble.ai {
  border-color: rgba(72, 198, 182, 0.3);
  background: rgba(72, 198, 182, 0.12);
}

.mini-wave {
  display: flex;
  align-items: center;
  gap: 5px;
  min-height: 34px;
  margin-top: 4px;
}

.mini-wave i {
  width: 6px;
  height: 22px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--jade), var(--gold));
  animation: wave 1.05s ease-in-out infinite;
}

.mini-wave i:nth-child(2) { animation-delay: 0.09s; }
.mini-wave i:nth-child(3) { animation-delay: 0.18s; }
.mini-wave i:nth-child(4) { animation-delay: 0.27s; }
.mini-wave i:nth-child(5) { animation-delay: 0.36s; }

.report-shot {
  display: grid;
  grid-template-columns: 124px 1fr;
  gap: 14px;
  align-items: center;
}

.mini-ring {
  width: 118px;
  height: 118px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background:
    conic-gradient(var(--jade) 0 72%, rgba(255, 255, 255, 0.12) 72% 100%),
    rgba(255, 255, 255, 0.06);
}

.mini-ring strong {
  display: grid;
  place-items: center;
  width: 82px;
  height: 82px;
  border-radius: 50%;
  background: #10231f;
  font-size: 25px;
}

.demo-experience {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 16px;
  align-items: stretch;
}

.journey-rail {
  position: sticky;
  top: 18px;
  align-self: start;
  padding: 14px;
}

.journey-title {
  padding: 8px 8px 14px;
}

.journey-title span,
.guide-panel small,
.screen-kicker {
  display: block;
  color: var(--gold);
  font-size: 12px;
  font-weight: 900;
}

.journey-title strong {
  display: block;
  margin-top: 6px;
  line-height: 1.25;
}

.journey-step {
  width: 100%;
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 8px;
  align-items: start;
  margin-top: 8px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 11px 10px;
  background: transparent;
  color: var(--soft);
  text-align: left;
  cursor: pointer;
}

.journey-step b {
  color: var(--gold);
  font-size: 12px;
}

.journey-step span,
.journey-step small {
  display: block;
}

.journey-step span {
  font-weight: 900;
}

.journey-step small {
  grid-column: 2;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
}

.journey-step.active {
  border-color: rgba(72, 198, 182, 0.56);
  background: rgba(72, 198, 182, 0.13);
  box-shadow: 0 16px 42px rgba(72, 198, 182, 0.13);
}

.system-frame {
  min-width: 0;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.frame-chrome {
  min-height: 48px;
  display: grid;
  grid-template-columns: 78px 1fr auto;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid var(--line);
  padding: 12px 16px;
  background: rgba(3, 17, 15, 0.72);
}

.traffic {
  display: flex;
  gap: 7px;
}

.traffic span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--red);
}

.traffic span:nth-child(2) { background: var(--gold); }
.traffic span:nth-child(3) { background: var(--jade); }
.frame-chrome small { color: var(--muted); }

.app-shell-demo {
  display: grid;
  grid-template-columns: 168px minmax(0, 1fr) 300px;
  min-height: 720px;
}

.app-sidebar {
  padding: 18px 14px;
  border-right: 1px solid var(--line);
  background: rgba(4, 39, 35, 0.72);
}

.app-logo {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 22px;
}

.app-logo span {
  width: 34px;
  height: 34px;
}

.app-logo b { font-size: 14px; }

.app-nav {
  width: 100%;
  min-height: 38px;
  margin-bottom: 8px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 8px 10px;
  background: transparent;
  color: #c7ddd7;
  text-align: left;
}

.app-nav.active {
  border-color: rgba(240, 193, 95, 0.34);
  background: rgba(240, 193, 95, 0.12);
  color: #fff7df;
}

.screen-content {
  min-width: 0;
  padding: 22px;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px) 0 0 / 42px 42px,
    linear-gradient(0deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px) 0 0 / 42px 42px,
    rgba(255, 255, 255, 0.035);
}

.guide-panel {
  border-top: 0;
  border-right: 0;
  border-bottom: 0;
  border-radius: 0;
  padding: 22px;
  background: rgba(8, 20, 18, 0.68);
}

.guide-panel h2 {
  margin: 10px 0 10px;
  font-size: 28px;
  line-height: 1.18;
}

.guide-panel p {
  margin: 0;
  color: var(--soft);
  line-height: 1.65;
}

.guide-points {
  display: grid;
  gap: 9px;
  margin: 22px 0;
}

.guide-points span {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  color: var(--muted);
  line-height: 1.5;
}

.guide-points span::before {
  content: "";
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--jade);
  box-shadow: 0 0 18px rgba(72, 198, 182, 0.72);
}

.screen-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
  margin-bottom: 18px;
}

.screen-head h2 {
  margin: 6px 0 0;
  font-size: clamp(28px, 3vw, 44px);
  line-height: 1.12;
}

.screen-head p {
  max-width: 640px;
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.65;
}

.screen-badge {
  flex: 0 0 auto;
  border: 1px solid rgba(72, 198, 182, 0.36);
  border-radius: 999px;
  padding: 7px 10px;
  color: #9ef0e7;
  background: rgba(72, 198, 182, 0.12);
  font-size: 12px;
  font-weight: 900;
}

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

.screen-grid.three {
  grid-template-columns: 1.15fr 0.85fr;
}

.screen-card,
.insight-card {
  padding: 18px;
}

.screen-card h3,
.insight-card h3 {
  margin: 0 0 12px;
  font-size: 22px;
}

.screen-card p,
.insight-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.doc-preview {
  min-height: 380px;
  display: grid;
  grid-template-columns: 132px 1fr;
  gap: 18px;
}

.doc-cover {
  min-height: 176px;
  border-radius: var(--radius);
  padding: 16px;
  background: linear-gradient(180deg, #fbf6e8, #c7f0e7);
  color: #123b36;
}

.doc-cover b,
.doc-cover span {
  display: block;
}

.doc-cover b {
  font-size: 42px;
  line-height: 1;
}

.doc-cover span {
  margin-top: 14px;
  font-weight: 900;
  line-height: 1.28;
}

.pipeline {
  display: grid;
  gap: 10px;
}

.pipe-item {
  display: grid;
  grid-template-columns: 34px 1fr auto;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  background: rgba(255, 255, 255, 0.055);
}

.pipe-item b {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(72, 198, 182, 0.14);
  color: #9ef0e7;
}

.pipe-item strong,
.pipe-item small {
  display: block;
}

.pipe-item small {
  color: var(--muted);
  margin-top: 2px;
}

.pipe-item em {
  color: var(--gold);
  font-style: normal;
  font-size: 12px;
  font-weight: 900;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.metric-row article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  background: rgba(255, 255, 255, 0.055);
}

.metric-row b,
.metric-row span {
  display: block;
}

.metric-row b {
  font-size: 34px;
}

.metric-row span {
  color: var(--muted);
  font-size: 12px;
}

.knowledge-card-demo {
  min-height: 480px;
}

.source-pill-row,
.quality-tags,
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.source-pill-row span,
.quality-tags span,
.tag-row span {
  border: 1px solid rgba(219, 233, 229, 0.2);
  border-radius: 999px;
  padding: 6px 9px;
  color: #d9e8e4;
  background: rgba(255, 255, 255, 0.06);
  font-size: 12px;
  line-height: 1.1;
}

.knowledge-main {
  margin-top: 16px;
  border: 1px solid rgba(240, 193, 95, 0.28);
  border-radius: var(--radius);
  padding: 18px;
  background: rgba(240, 193, 95, 0.08);
}

.knowledge-main h3 {
  font-size: clamp(26px, 2.6vw, 38px);
  line-height: 1.12;
}

.point-list {
  display: grid;
  gap: 10px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.point-list li {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  color: var(--soft);
  background: rgba(255, 255, 255, 0.055);
  line-height: 1.55;
}

.question-card-large {
  border: 1px solid rgba(72, 198, 182, 0.4);
  background: rgba(72, 198, 182, 0.1);
}

.question-stem {
  margin: 0 0 16px;
  color: #fff;
  font-size: 23px;
  line-height: 1.45;
  font-weight: 900;
}

.option-list {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.option-button,
.option-static {
  width: 100%;
  min-height: 52px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.065);
  color: var(--soft);
  text-align: left;
  line-height: 1.5;
}

.option-button {
  cursor: pointer;
}

.option-button.selected {
  border-color: rgba(240, 193, 95, 0.66);
  background: rgba(240, 193, 95, 0.14);
  color: #fff6db;
}

.option-button.correct {
  border-color: rgba(72, 198, 182, 0.78);
  background: rgba(72, 198, 182, 0.16);
}

.answer-panel {
  margin-top: 14px;
  border: 1px solid rgba(240, 193, 95, 0.26);
  border-radius: var(--radius);
  padding: 14px;
  color: #f3e2bd;
  background: rgba(240, 193, 95, 0.08);
  line-height: 1.62;
}

.answer-panel[hidden] {
  display: none;
}

.gate-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
}

.gate-grid span {
  min-height: 42px;
  display: flex;
  align-items: center;
  border: 1px solid rgba(72, 198, 182, 0.24);
  border-radius: var(--radius);
  padding: 9px 10px;
  background: rgba(72, 198, 182, 0.09);
  color: #dffffa;
  font-size: 13px;
}

.model-chain {
  display: grid;
  gap: 10px;
}

.model-chain article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  background: rgba(255, 255, 255, 0.055);
}

.model-chain b,
.model-chain span {
  display: block;
}

.model-chain b {
  color: #fff;
}

.model-chain span {
  margin-top: 5px;
  color: var(--muted);
  font-size: 13px;
}

.companion-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.companion-layout > .screen-card:first-child {
  min-height: 520px;
}

.companion-layout .model-chain {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.dialogue-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.dialogue-line {
  width: min(86%, 820px);
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 12px;
  align-items: start;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 13px;
  background: rgba(255, 255, 255, 0.055);
}

.dialogue-line.user-line {
  align-self: flex-end;
  border-color: rgba(240, 193, 95, 0.28);
  background: rgba(240, 193, 95, 0.08);
}

.dialogue-line.ai-line {
  align-self: flex-start;
}

.dialogue-line.active {
  border-color: rgba(72, 198, 182, 0.66);
  background: rgba(72, 198, 182, 0.12);
  box-shadow: 0 14px 38px rgba(72, 198, 182, 0.12);
}

.dialogue-line span {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(180deg, #effff8, #c1f1e5);
  color: #0a5b53;
  font-weight: 950;
}

.dialogue-line.user-line span {
  background: rgba(255, 255, 255, 0.13);
  color: #fff;
}

.dialogue-line small {
  display: block;
  margin-bottom: 5px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 900;
}

.dialogue-line.user-line small {
  color: #cfe1dc;
}

.dialogue-line p {
  margin: 0;
  color: #e6f2ef;
  line-height: 1.62;
}

.audio-console {
  margin-top: 14px;
  border: 1px solid rgba(240, 193, 95, 0.25);
  border-radius: var(--radius);
  padding: 15px;
  background: rgba(240, 193, 95, 0.08);
}

.audio-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.waveform {
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  margin-bottom: 10px;
}

.waveform span {
  width: 7px;
  height: 24px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--jade), var(--gold));
  animation: wave 1.1s ease-in-out infinite;
  opacity: 0.82;
}

.waveform span:nth-child(2) { animation-delay: 0.08s; }
.waveform span:nth-child(3) { animation-delay: 0.16s; }
.waveform span:nth-child(4) { animation-delay: 0.24s; }
.waveform span:nth-child(5) { animation-delay: 0.32s; }
.waveform span:nth-child(6) { animation-delay: 0.4s; }

.not-playing .waveform span {
  animation-play-state: paused;
  opacity: 0.42;
}

.report-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.progress-ring {
  width: 190px;
  height: 190px;
  display: grid;
  place-items: center;
  margin: 16px auto;
  border-radius: 50%;
  background:
    conic-gradient(var(--jade) 0 72%, rgba(255, 255, 255, 0.12) 72% 100%),
    rgba(255, 255, 255, 0.06);
}

.progress-ring div {
  width: 132px;
  height: 132px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #10231f;
}

.progress-ring strong {
  font-size: 42px;
}

.timeline {
  display: grid;
  gap: 10px;
}

.timeline article {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 10px;
  align-items: start;
}

.timeline b {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(240, 193, 95, 0.14);
  color: var(--gold);
}

.timeline span,
.timeline small {
  display: block;
}

.timeline small {
  color: var(--muted);
  margin-top: 3px;
}

@keyframes wave {
  0%, 100% { transform: scaleY(0.45); }
  50% { transform: scaleY(1.35); }
}

@media (max-width: 1360px) {
  .app-shell-demo {
    grid-template-columns: 138px minmax(0, 1fr);
  }

  .guide-panel {
    grid-column: 1 / -1;
    border-left: 0;
    border-top: 1px solid var(--line);
    border-radius: 0;
  }
}

@media (max-width: 1120px) {
  .opening,
  .demo-experience,
  .screen-grid,
  .screen-grid.three,
  .companion-layout,
  .report-grid {
    grid-template-columns: 1fr;
  }

  .journey-rail {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .journey-title {
    grid-column: 1 / -1;
  }

  .section-heading {
    display: block;
  }

  .section-heading > p {
    max-width: none;
    margin-top: 12px;
  }

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

@media (max-width: 760px) {
  .experience-stage {
    padding-left: 14px;
    padding-right: 14px;
  }

  .topnav {
    display: none;
  }

  .opening h1 {
    font-size: 36px;
  }

  .case-stats,
  .product-summary,
  .gallery-grid,
  .metric-row,
  .gate-grid,
  .journey-rail {
    grid-template-columns: 1fr;
  }

  .interface-shot.wide {
    grid-column: auto;
  }

  .library-shot,
  .report-shot {
    grid-template-columns: 1fr;
  }

  .app-shell-demo {
    grid-template-columns: 1fr;
  }

  .app-sidebar {
    display: none;
  }

  .screen-content {
    padding: 14px;
  }

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

  .screen-head {
    display: block;
  }

  .screen-badge {
    display: inline-flex;
    margin-top: 12px;
  }

  .companion-layout .model-chain {
    grid-template-columns: 1fr;
  }

  .dialogue-line {
    width: 100%;
  }
}

/* ===== Cinematic product-showcase layer ===== */
.particle-field {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.52;
  mix-blend-mode: screen;
}

body {
  overflow-x: hidden;
}

body::after {
  content: "";
  position: fixed;
  inset: -35% -20%;
  z-index: 0;
  pointer-events: none;
  background:
    linear-gradient(108deg, transparent 0 38%, rgba(72, 198, 182, 0.2) 42%, transparent 48% 62%, rgba(240, 193, 95, 0.16) 66%, transparent 72%),
    radial-gradient(circle at 76% 18%, rgba(137, 167, 255, 0.14), transparent 30%);
  filter: blur(2px);
  opacity: 0.76;
  animation: sweepLight 12s ease-in-out infinite alternate;
}

.topline {
  position: sticky;
  top: 14px;
  z-index: 20;
  max-width: 1480px;
  margin-inline: auto;
  border: 1px solid rgba(227, 241, 235, 0.14);
  border-radius: calc(var(--radius) + 2px);
  padding: 10px 12px;
  background: rgba(4, 19, 17, 0.56);
  backdrop-filter: blur(22px) saturate(140%);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.22);
}

.topnav a {
  transition: transform .2s ease, border-color .2s ease, background .2s ease, color .2s ease;
}

.topnav a:hover {
  transform: translateY(-1px);
  border-color: rgba(72, 198, 182, 0.5);
  color: #f4faf7;
  background: rgba(72, 198, 182, 0.11);
}

.opening {
  position: relative;
  min-height: calc(100vh - 112px);
  grid-template-columns: minmax(0, 1.08fr) minmax(390px, 0.92fr);
  align-items: center;
  max-width: 1480px;
  margin-inline: auto;
  padding: clamp(32px, 6vw, 72px) 0 clamp(28px, 4vw, 54px);
}

.opening::before {
  content: "TESTMIND";
  position: absolute;
  right: -3vw;
  bottom: 3vh;
  z-index: -1;
  color: rgba(244, 250, 247, 0.035);
  font-size: clamp(86px, 16vw, 230px);
  font-weight: 950;
  line-height: 0.78;
  letter-spacing: -0.08em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.pulse-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--jade);
  box-shadow: 0 0 0 0 rgba(72, 198, 182, 0.66);
  animation: pulseHalo 2s ease-out infinite;
}

.opening h1 {
  max-width: 880px;
  font-size: clamp(48px, 6.8vw, 92px);
  line-height: 0.96;
  letter-spacing: -0.035em;
}

.hero-line {
  display: block;
}

.accent-line {
  white-space: nowrap;
  font-size: 0.86em;
}

.opening h1 .accent-line,
.summary-claim h2 span {
  background: linear-gradient(135deg, #ffffff 0%, #d9fff6 38%, #f0c15f 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

#top,
#gallery,
#experience {
  scroll-margin-top: 112px;
}

.lead {
  max-width: 700px;
  font-size: clamp(17px, 1.35vw, 22px);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.hero-tags span {
  border: 1px solid rgba(72, 198, 182, 0.28);
  border-radius: 999px;
  padding: 8px 11px;
  color: #dffbf5;
  background: rgba(72, 198, 182, 0.08);
  box-shadow: inset 0 0 18px rgba(72, 198, 182, 0.07);
  font-size: 13px;
  font-weight: 800;
}

.hero-actions {
  margin-top: 28px;
}

.hero-actions a,
.primary-action,
.screen-button.primary {
  position: relative;
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease;
}

.hero-actions a::after,
.primary-action::after,
.screen-button.primary::after {
  content: "";
  position: absolute;
  inset: 0;
  transform: translateX(-120%);
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.48), transparent);
  transition: transform .62s ease;
}

.hero-actions a:hover,
.primary-action:hover,
.screen-button.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 58px rgba(72, 198, 182, 0.26);
}

.hero-actions a:hover::after,
.primary-action:hover::after,
.screen-button.primary:hover::after {
  transform: translateX(120%);
}

.case-card {
  position: relative;
  min-height: 560px;
  overflow: hidden;
  padding: 0;
  border-color: rgba(227, 241, 235, 0.28);
  background:
    radial-gradient(circle at 50% 38%, rgba(72, 198, 182, 0.18), transparent 35%),
    linear-gradient(155deg, rgba(240, 193, 95, 0.12), transparent 48%),
    rgba(255, 255, 255, 0.068);
  transform: perspective(1300px) rotateY(-5deg) rotateX(2deg);
  animation: floatPanel 7s ease-in-out infinite;
}

.case-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(72, 198, 182, 0.7), transparent 28%, rgba(240, 193, 95, 0.55) 70%, transparent);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0.72;
  pointer-events: none;
}

.case-radar {
  position: absolute;
  inset: 20px 20px 124px;
  display: grid;
  place-items: center;
}

.radar-glow {
  position: absolute;
  width: min(70%, 350px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(72, 198, 182, 0.36), transparent 62%);
  filter: blur(18px);
  animation: glowPulse 4.8s ease-in-out infinite;
}

.radar-ring {
  position: absolute;
  border: 1px solid rgba(227, 241, 235, 0.16);
  border-radius: 50%;
}

.ring-one {
  width: 38%;
  aspect-ratio: 1;
  box-shadow: 0 0 42px rgba(72, 198, 182, 0.16);
}

.ring-two {
  width: 58%;
  aspect-ratio: 1;
  animation: spin 30s linear infinite;
}

.ring-three {
  width: 78%;
  aspect-ratio: 1;
  border-style: dashed;
  animation: spin 44s linear infinite reverse;
}

.radar-ring::after {
  content: "";
  position: absolute;
  top: 50%;
  left: -4px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 24px rgba(240, 193, 95, 0.78);
}

.radar-center {
  position: relative;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 142px;
  height: 142px;
  border: 1px solid rgba(72, 198, 182, 0.42);
  border-radius: 50%;
  background: rgba(6, 24, 22, 0.82);
  box-shadow: 0 0 62px rgba(72, 198, 182, 0.22), inset 0 0 32px rgba(72, 198, 182, 0.1);
}

.radar-center span,
.radar-center strong {
  display: block;
  margin: 0;
  text-align: center;
}

.radar-center span {
  font-size: 42px;
  font-weight: 950;
  line-height: 1;
  color: #f8fff9;
}

.radar-center strong {
  margin-top: -24px;
  color: var(--gold);
  font-size: 13px;
  letter-spacing: 0.12em;
}

.radar-node {
  position: absolute;
  z-index: 3;
  border: 1px solid rgba(227, 241, 235, 0.22);
  border-radius: 999px;
  padding: 8px 11px;
  background: rgba(255, 255, 255, 0.09);
  color: #eafff9;
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.2);
  font-size: 13px;
  font-weight: 900;
  animation: nodeFloat 4.8s ease-in-out infinite;
}

.node-one { top: 10%; left: 13%; animation-delay: .1s; }
.node-two { top: 10%; right: 13%; animation-delay: .4s; }
.node-three { top: 51%; right: 5%; animation-delay: .7s; }
.node-four { bottom: 10%; left: 20%; animation-delay: 1s; }
.node-five { left: 5%; top: 51%; animation-delay: 1.3s; }
.node-six { right: 20%; bottom: 10%; animation-delay: 1.6s; }

.case-info {
  position: absolute;
  inset: auto 20px 20px;
  z-index: 4;
}

.case-info > strong {
  margin-top: 10px;
  max-width: 92%;
  font-size: clamp(20px, 2.1vw, 31px);
}

.case-stats article {
  position: relative;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.08);
}

.case-stats article::before {
  content: "";
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, rgba(240, 193, 95, 0.12), transparent);
  animation: statScan 5s linear infinite;
}

.product-summary {
  position: relative;
  max-width: 1480px;
  margin: 18px auto 42px;
  grid-template-columns: minmax(280px, 1.25fr) repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.product-summary::before {
  content: "";
  position: absolute;
  left: 24%;
  right: 6%;
  top: 50%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(72, 198, 182, 0.5), rgba(240, 193, 95, 0.36), transparent);
  transform: translateY(-50%);
  opacity: 0.72;
}

.summary-claim,
.product-summary article {
  position: relative;
  z-index: 1;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(6, 24, 22, 0.72);
  backdrop-filter: blur(18px);
}

.summary-claim {
  min-height: 180px;
  padding: 22px;
  background:
    radial-gradient(circle at 0 0, rgba(240, 193, 95, 0.16), transparent 42%),
    rgba(255, 255, 255, 0.068);
}

.summary-claim span {
  color: var(--gold);
  font-size: 13px;
  font-weight: 950;
}

.summary-claim h2 {
  margin: 18px 0 0;
  font-size: clamp(24px, 2.4vw, 38px);
  line-height: 1.16;
}

.product-summary article {
  min-height: 180px;
  padding: 20px;
}

.product-summary article::before {
  content: "";
  position: absolute;
  right: 18px;
  top: 18px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--jade);
  box-shadow: 0 0 18px rgba(72, 198, 182, 0.78);
}

.product-summary h3 {
  margin-top: 42px;
}

.showcase-gallery {
  position: relative;
  max-width: 1480px;
  margin: 0 auto 48px;
  padding: clamp(24px, 4vw, 52px);
  background:
    radial-gradient(circle at 68% 20%, rgba(72, 198, 182, 0.18), transparent 26%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.04));
}

.showcase-gallery::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(115deg, transparent 0 28%, rgba(255, 255, 255, 0.08) 34%, transparent 42% 100%);
  pointer-events: none;
}

.section-heading {
  position: relative;
  z-index: 1;
  margin-bottom: 26px;
}

.section-heading h2 {
  max-width: 880px;
  font-size: clamp(38px, 5.2vw, 74px);
  letter-spacing: -0.035em;
}

.section-heading > p {
  font-size: 16px;
}

.gallery-grid {
  position: relative;
  z-index: 1;
  gap: 16px;
}

.interface-shot {
  position: relative;
  min-height: 300px;
  transform: translateY(0);
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}

.interface-shot:hover {
  transform: translateY(-6px);
  border-color: rgba(72, 198, 182, 0.48);
  box-shadow: 0 26px 72px rgba(0, 0, 0, 0.34), 0 0 40px rgba(72, 198, 182, 0.08);
}

.interface-shot.in-view:hover {
  transform: translateY(-6px);
}

.interface-shot::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 0 42%, rgba(255, 255, 255, 0.08) 47%, transparent 54%);
  transform: translateX(-120%);
  transition: transform .7s ease;
  pointer-events: none;
}

.interface-shot:hover::after {
  transform: translateX(120%);
}

.experience-intro {
  grid-column: 1 / -1;
  max-width: 920px;
  margin-bottom: 10px;
}

.experience-intro h2 {
  margin: 0;
  font-size: clamp(32px, 4.5vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.demo-experience {
  max-width: 1480px;
  margin: 0 auto;
}

.system-frame {
  border-color: rgba(227, 241, 235, 0.24);
  box-shadow: 0 32px 100px rgba(0, 0, 0, 0.46), 0 0 48px rgba(72, 198, 182, 0.08);
}

[data-reveal],
.interface-shot {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .8s cubic-bezier(.16, 1, .3, 1), transform .8s cubic-bezier(.16, 1, .3, 1);
}

[data-reveal].in-view,
.interface-shot.in-view {
  opacity: 1;
  transform: none;
}

.case-card[data-reveal] {
  transform: perspective(1300px) rotateY(-5deg) rotateX(2deg) translateY(28px);
}

.case-card[data-reveal].in-view {
  transform: perspective(1300px) rotateY(-5deg) rotateX(2deg);
}

@keyframes pulseHalo {
  0% { box-shadow: 0 0 0 0 rgba(72, 198, 182, 0.66); }
  70% { box-shadow: 0 0 0 13px rgba(72, 198, 182, 0); }
  100% { box-shadow: 0 0 0 0 rgba(72, 198, 182, 0); }
}

@keyframes sweepLight {
  0% { transform: translate3d(-4%, -2%, 0) rotate(0deg); opacity: 0.48; }
  100% { transform: translate3d(4%, 3%, 0) rotate(3deg); opacity: 0.82; }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes glowPulse {
  0%, 100% { opacity: .48; transform: scale(0.96); }
  50% { opacity: .86; transform: scale(1.08); }
}

@keyframes nodeFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-9px); }
}

@keyframes floatPanel {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -10px; }
}

@keyframes statScan {
  0% { transform: translateX(-110%); }
  54%, 100% { transform: translateX(110%); }
}

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

  .case-card {
    min-height: 520px;
    transform: none;
  }

  .case-card[data-reveal],
  .case-card[data-reveal].in-view {
    transform: none;
  }

  .product-summary {
    grid-template-columns: 1fr;
  }

  .product-summary::before {
    display: none;
  }

  .summary-claim,
  .product-summary article {
    min-height: auto;
  }
}

@media (max-width: 760px) {
  .topline {
    top: 8px;
  }

  .opening h1 {
    font-size: clamp(44px, 13vw, 64px);
  }

  .case-card {
    min-height: 520px;
  }

  .case-radar {
    inset: 20px 12px 150px;
  }

  .radar-center {
    width: 118px;
    height: 118px;
  }

  .radar-center span {
    font-size: 34px;
  }

  .radar-node {
    font-size: 12px;
    padding: 7px 9px;
  }

  .section-heading h2 {
    font-size: clamp(34px, 11vw, 48px);
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}