:root {
  --bg: #060606;
  --panel: rgba(18, 17, 16, 0.82);
  --panel-soft: rgba(255, 255, 255, 0.055);
  --line: rgba(214, 183, 125, 0.18);
  --line-strong: rgba(214, 183, 125, 0.4);
  --text: #f4eddf;
  --muted: #b8ab98;
  --red: #831b1b;
  --red-bright: #bd2d28;
  --gold: #d6b77d;
  --blue: #657282;
  --max: 1540px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    linear-gradient(rgba(255,255,255,0.024) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.024) 1px, transparent 1px),
    linear-gradient(180deg, #040404 0, #0b0707 38%, #060606 100%);
  background-size: 52px 52px, 52px 52px, auto;
  font-family: "Microsoft YaHei", "Noto Serif SC", "Songti SC", serif;
  line-height: 1.72;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  opacity: 0.18;
  background: repeating-linear-gradient(180deg, rgba(255,255,255,0.028), rgba(255,255,255,0.028) 1px, transparent 1px, transparent 8px);
}

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

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

button {
  font: inherit;
}

.site-header {
  position: fixed;
  top: 24px;
  left: 50%;
  z-index: 40;
  width: min(calc(100% - 48px), 1200px);
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 12px 16px 12px 20px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 999px;
  background: rgba(8, 8, 8, 0.54);
  box-shadow: 0 18px 54px rgba(0,0,0,0.48), inset 0 1px 0 rgba(255,255,255,0.1);
  backdrop-filter: blur(18px) saturate(1.2);
  transition: top 220ms ease, background 220ms ease, border-color 220ms ease;
}

.site-header.is-scrolled {
  top: 12px;
  background: rgba(8,8,8,0.78);
  border-color: rgba(214,183,125,0.28);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  white-space: nowrap;
  color: #fff7ea;
  font-size: 15px;
}

.brand-mark {
  width: 24px;
  height: 24px;
  border: 1px solid rgba(255,219,157,0.88);
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, var(--gold) 0 2px, transparent 3px),
    conic-gradient(from 120deg, #111, var(--red), #17110f, var(--gold), #111);
  box-shadow: 0 0 22px rgba(189,45,40,0.45);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  color: rgba(244,237,223,0.78);
  font-size: 13px;
}

.nav-links a {
  position: relative;
  padding: 8px 10px;
  border-radius: 999px;
  transition: color 180ms ease, background 180ms ease, transform 180ms ease;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 5px;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transition: transform 180ms ease;
}

.nav-links a:hover {
  color: #fff7ea;
  background: rgba(189,45,40,0.22);
  transform: translateY(-1px);
}

.nav-links a:hover::after {
  transform: scaleX(1);
}

.hero {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
}

.hero {
  display: grid;
  align-items: end;
  padding: 132px 42px 56px;
}

.hero-media,
.hero-shade,
.hero-grid,
 .video-showcase-media,
 .video-showcase-shade,
 .profile-media,
 .profile-shade {
  position: absolute;
  inset: 0;
}

.hero-media,
.video-showcase-media,
.profile-media {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.08);
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(0,0,0,0.9), rgba(0,0,0,0.52) 48%, rgba(0,0,0,0.86)),
    linear-gradient(0deg, rgba(6,6,6,1), rgba(6,6,6,0.14) 50%, rgba(6,6,6,0.72));
}

.hero-grid {
  opacity: 0.46;
  background:
    linear-gradient(90deg, transparent 0, transparent calc(100% - 1px), rgba(214,183,125,0.12) calc(100% - 1px)),
    linear-gradient(0deg, transparent 0, transparent calc(100% - 1px), rgba(214,183,125,0.1) calc(100% - 1px));
  background-size: 8.333% 100%, 100% 14.285%;
}

.hero-content,
.hero-meta,
.video-showcase-content,
.profile-inner {
  position: relative;
  z-index: 2;
}

.hero-content,
.hero-meta {
  width: min(100%, var(--max));
  margin: 0 auto;
}

.hero-content {
  padding-bottom: 64px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0;
}

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

h1 {
  max-width: 980px;
  margin-bottom: 24px;
  font-size: clamp(38px, 6vw, 72px);
  line-height: 1.08;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.24;
}

h3 {
  font-size: 23px;
  line-height: 1.34;
}

.hero-subtitle {
  max-width: 790px;
  color: rgba(244,237,223,0.84);
  font-size: 19px;
}

.hero-tags,
.video-points,
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.hero-tags {
  margin-top: 25px;
}

.hero-tags span,
.video-points span,
.tag-row span {
  border: 1px solid rgba(214,183,125,0.24);
  border-radius: 999px;
  padding: 6px 10px;
  color: rgba(244,237,223,0.78);
  background: rgba(0,0,0,0.34);
  font-size: 12px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 34px;
}

.btn {
  position: relative;
  min-width: 132px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  padding: 12px 20px;
  color: var(--text);
  text-align: center;
  background: rgba(255,255,255,0.06);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent, rgba(255,255,255,0.18), transparent);
  transform: translateX(-120%);
  transition: transform 320ms ease;
}

.btn:hover {
  transform: translateY(-3px);
  border-color: var(--gold);
  box-shadow: 0 14px 34px rgba(0,0,0,0.42), 0 0 28px rgba(189,45,40,0.24);
}

.btn:hover::before {
  transform: translateX(120%);
}

.btn.primary {
  background: rgba(131,27,27,0.92);
}

.hero-meta {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  border-top: 1px solid rgba(214,183,125,0.18);
  padding-top: 18px;
  color: rgba(244,237,223,0.58);
  font-size: 13px;
}

.section {
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: 104px 42px;
  position: relative;
  isolation: isolate;
  overflow: hidden;
}

.section.has-bg-video::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  z-index: 1;
  width: 100vw;
  transform: translateX(-50%);
  pointer-events: none;
  background:
    radial-gradient(circle at 18% 20%, rgba(131,27,27,0.28), transparent 360px),
    linear-gradient(90deg, rgba(6,6,6,0.94), rgba(6,6,6,0.72) 48%, rgba(6,6,6,0.92)),
    linear-gradient(180deg, rgba(6,6,6,0.88), rgba(6,6,6,0.64) 42%, rgba(6,6,6,0.92));
}

.section-bg-video {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  z-index: 0;
  width: 100vw;
  max-width: none;
  height: 100%;
  min-height: 100%;
  object-fit: cover;
  transform: translateX(-50%);
  pointer-events: none;
  opacity: 0.2;
  filter: grayscale(0.2) saturate(0.9) contrast(1.16) brightness(0.62);
}

.section.has-bg-video > :not(.section-bg-video) {
  position: relative;
  z-index: 2;
}

.section-head {
  max-width: 980px;
  margin-bottom: 42px;
}

.section-head p:not(.eyebrow) {
  color: var(--muted);
  font-size: 17px;
}

.mindmap-grid,
.method-grid,
.background-grid,
.goal-grid,
.research-grid,
.tech-grid,
.display-grid {
  display: grid;
  gap: 20px;
}

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

.method-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 24px;
}

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

.tech-layout {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 24px;
}

.tech-grid {
  grid-template-columns: 1fr;
}

.mindmap-card,
.system-panel,
.chart-card,
.visual-card,
.persona-panel,
.profile-inner {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(255,255,255,0.058), rgba(255,255,255,0.026));
  box-shadow: 0 24px 60px rgba(0,0,0,0.32);
}

.mindmap-card {
  overflow: hidden;
  min-height: 360px;
}

.system-panel {
  display: grid;
  grid-template-columns: 1.45fr 0.55fr;
  gap: 0;
  overflow: hidden;
  margin-bottom: 24px;
}

.system-panel .image-button img {
  height: 100%;
  min-height: 420px;
  aspect-ratio: auto;
}

.system-panel-copy {
  display: grid;
  align-content: center;
  padding: 34px;
  border-left: 1px solid rgba(214,183,125,0.14);
  background:
    radial-gradient(circle at 30% 20%, rgba(189,45,40,0.16), transparent 180px),
    rgba(0,0,0,0.18);
}

.system-panel-copy p:not(.eyebrow) {
  color: var(--muted);
}

.mindmap-card.gold {
  border-color: rgba(214,183,125,0.32);
}

.mindmap-card.red {
  border-color: rgba(189,45,40,0.42);
}

.mindmap-card.blue {
  border-color: rgba(101,114,130,0.48);
}

.image-button {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
  text-align: left;
}

.image-button img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: #111;
  transition: transform 260ms ease, filter 260ms ease;
}

.image-button:hover img {
  transform: scale(1.04);
  filter: brightness(1.1);
}

.mindmap-body,
.visual-card-body {
  padding: 24px;
}

.mindmap-body {
  display: grid;
  align-content: start;
  min-height: 360px;
  background:
    radial-gradient(circle at 85% 12%, rgba(214,183,125,0.12), transparent 160px),
    linear-gradient(135deg, rgba(131,27,27,0.16), transparent 45%);
}

.mindmap-body ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.mindmap-body li::marker {
  color: var(--gold);
}

.chart-card {
  padding: 24px;
}

.chart-card-head {
  display: grid;
  gap: 8px;
  border-bottom: 1px solid rgba(214,183,125,0.14);
  padding-bottom: 14px;
  margin-bottom: 18px;
}

.chart-card-head span {
  color: #fff0d5;
  font-size: 19px;
}

.chart-card-head strong {
  color: rgba(214,183,125,0.78);
  font-size: 12px;
  font-weight: 400;
}

.chart-card p,
.visual-card p,
.persona-panel p,
.display-group-head p,
.profile-note {
  color: var(--muted);
}

.region-chart,
.demand-chart {
  display: grid;
  gap: 12px;
  min-height: 220px;
  align-content: center;
}

.region-row {
  display: grid;
  grid-template-columns: 52px 1fr 46px;
  gap: 12px;
  align-items: center;
}

.region-row span,
.region-row strong,
.demand-row span,
.demand-row em {
  color: rgba(244,237,223,0.76);
  font-size: 13px;
  font-style: normal;
  font-weight: 400;
}

.region-track,
.demand-track {
  height: 10px;
  overflow: hidden;
  border: 1px solid rgba(214,183,125,0.16);
  border-radius: 999px;
  background: rgba(0,0,0,0.32);
}

.region-track i,
.demand-track i {
  display: block;
  width: var(--w);
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--red-bright), var(--gold));
  box-shadow: 0 0 18px rgba(189,45,40,0.35);
}

.demand-row {
  display: grid;
  grid-template-columns: 34px 116px 1fr 34px;
  gap: 12px;
  align-items: center;
}

.demand-row strong {
  color: rgba(244,237,223,0.8);
  font-size: 14px;
  font-weight: 400;
}

.age-chart {
  min-height: 240px;
  display: grid;
  align-items: end;
}

.age-bars {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  height: 220px;
}

.age-bar {
  display: grid;
  grid-template-rows: 1fr auto auto;
  gap: 8px;
  align-items: end;
  text-align: center;
}

.age-bar i {
  display: block;
  width: 100%;
  height: var(--h);
  min-height: 18px;
  border: 1px solid rgba(214,183,125,0.2);
  background: linear-gradient(180deg, var(--gold), var(--red-bright));
}

.age-bar strong {
  color: var(--gold);
  font-size: 13px;
}

.age-bar span {
  color: rgba(244,237,223,0.72);
  font-size: 12px;
}

.device-chart {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 22px;
  align-items: center;
  min-height: 240px;
}

.device-ring {
  width: 180px;
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle, #101010 0 48%, transparent 49%),
    conic-gradient(var(--segments));
  box-shadow: 0 0 38px rgba(189,45,40,0.22);
}

.device-ring::after {
  content: "设备";
  display: grid;
  place-items: center;
  width: 52%;
  height: 52%;
  margin: 24%;
  border: 1px solid rgba(214,183,125,0.2);
  border-radius: 50%;
  color: var(--gold);
  background: rgba(0,0,0,0.72);
}

.device-legend {
  display: grid;
  gap: 10px;
}

.device-legend div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: rgba(244,237,223,0.76);
  font-size: 13px;
}

.device-legend i {
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--c);
}

.visual-card {
  overflow: hidden;
  transition: border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.visual-card:hover {
  border-color: rgba(214,183,125,0.5);
  transform: translateY(-3px);
  box-shadow: 0 28px 72px rgba(0,0,0,0.44), 0 0 0 1px rgba(214,183,125,0.08);
}

.visual-card h3 {
  margin-bottom: 10px;
}

.goal-card {
  min-height: 420px;
  overflow: hidden;
  border: 1px solid rgba(214,183,125,0.18);
  border-radius: 8px;
  background:
    radial-gradient(circle at 22% 20%, color-mix(in srgb, var(--goal-accent), transparent 72%), transparent 220px),
    linear-gradient(180deg, rgba(255,255,255,0.058), rgba(255,255,255,0.026));
  box-shadow: 0 24px 60px rgba(0,0,0,0.32);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.goal-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--goal-accent), var(--gold) 38%);
  box-shadow: 0 28px 72px rgba(0,0,0,0.44), 0 0 30px color-mix(in srgb, var(--goal-accent), transparent 72%);
}

.goal-visual {
  min-height: 260px;
  display: grid;
  place-items: center;
  border-bottom: 1px solid rgba(214,183,125,0.14);
  background:
    linear-gradient(rgba(255,255,255,0.026) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.026) 1px, transparent 1px),
    radial-gradient(circle at 50% 50%, rgba(214,183,125,0.08), transparent 170px);
  background-size: 42px 42px, 42px 42px, auto;
}

.goal-ring {
  position: relative;
  width: min(78%, 300px);
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(6,6,6,0.96) 0 44%, transparent 45%),
    conic-gradient(from 210deg, var(--goal-accent), var(--gold), rgba(255,255,255,0.16), var(--goal-accent));
  box-shadow: 0 0 42px color-mix(in srgb, var(--goal-accent), transparent 70%);
}

.goal-ring::before,
.goal-ring::after {
  content: "";
  position: absolute;
  inset: 20px;
  border: 1px solid rgba(214,183,125,0.28);
  border-radius: 50%;
}

.goal-ring::after {
  inset: 50px;
  border-color: color-mix(in srgb, var(--goal-accent), transparent 48%);
  border-style: dashed;
}

.goal-center {
  position: absolute;
  inset: 37%;
  display: grid;
  place-items: center;
  border: 1px solid rgba(214,183,125,0.32);
  border-radius: 50%;
  color: #fff2d7;
  background: rgba(0,0,0,0.72);
  font-size: 22px;
  font-weight: 700;
}

.goal-node {
  position: absolute;
  min-width: 82px;
  border: 1px solid color-mix(in srgb, var(--goal-accent), var(--gold) 38%);
  border-radius: 999px;
  padding: 7px 10px;
  color: rgba(244,237,223,0.9);
  background: rgba(5,5,5,0.78);
  text-align: center;
  font-size: 12px;
  box-shadow: 0 10px 26px rgba(0,0,0,0.32);
}

.goal-node.node-1 {
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
}

.goal-node.node-2 {
  right: -18px;
  top: 50%;
  transform: translateY(-50%);
}

.goal-node.node-3 {
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
}

.goal-arrow {
  position: absolute;
  width: 44px;
  height: 2px;
  background: linear-gradient(90deg, var(--goal-accent), var(--gold));
  transform-origin: center;
}

.goal-arrow::after {
  content: "";
  position: absolute;
  right: -2px;
  top: -4px;
  border-left: 8px solid var(--gold);
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
}

.goal-arrow.arrow-a {
  top: 33%;
  right: 24%;
  transform: rotate(35deg);
}

.goal-arrow.arrow-b {
  bottom: 31%;
  right: 27%;
  transform: rotate(145deg);
}

.goal-arrow.arrow-c {
  bottom: 33%;
  left: 25%;
  transform: rotate(220deg);
}

.goal-copy {
  padding: 24px;
}

.goal-copy > span {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 14px;
  border: 1px solid color-mix(in srgb, var(--goal-accent), var(--gold) 35%);
  color: var(--gold);
  background: rgba(0,0,0,0.32);
}

.goal-copy h3 {
  margin-bottom: 10px;
}

.goal-copy p {
  color: var(--muted);
}

.tag-row {
  margin-top: 18px;
}

.mini-path {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-top: 18px;
}

.mini-path span {
  position: relative;
  border: 1px solid rgba(214,183,125,0.2);
  padding: 8px;
  color: rgba(244,237,223,0.78);
  background: rgba(0,0,0,0.25);
  text-align: center;
  font-size: 12px;
}

.persona-panel {
  padding: 28px;
  align-self: stretch;
}

.sankey-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px;
  background:
    radial-gradient(circle at 18% 20%, rgba(189,45,40,0.18), transparent 220px),
    radial-gradient(circle at 82% 70%, rgba(75,122,145,0.16), transparent 220px),
    linear-gradient(180deg, rgba(255,255,255,0.058), rgba(255,255,255,0.026));
  box-shadow: 0 24px 60px rgba(0,0,0,0.32);
}

.sankey-head {
  max-width: 760px;
  margin-bottom: 18px;
}

.sankey-head p:not(.eyebrow) {
  color: var(--muted);
}

.sankey-svg {
  width: 100%;
  min-height: 360px;
  overflow: visible;
}

.flow {
  fill: none;
  stroke-linecap: round;
  opacity: 0.74;
}

.flow.vr {
  stroke: url(#vrFlow);
  stroke-width: 36;
}

.flow.ar {
  stroke: url(#arFlow);
  stroke-width: 30;
}

.flow.ai {
  stroke: url(#aiFlow);
  stroke-width: 34;
}

.flow.thin {
  stroke-width: 14;
  opacity: 0.42;
}

.sankey-node rect {
  fill: rgba(9,9,9,0.82);
  stroke: rgba(214,183,125,0.32);
  stroke-width: 1.4;
}

.sankey-node text {
  fill: rgba(244,237,223,0.88);
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 14px;
}

.sankey-node text:first-of-type {
  fill: var(--gold);
  font-size: 17px;
  font-weight: 700;
}

.persona-visual {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 24px 0;
}

.persona-visual span {
  min-height: 84px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(214,183,125,0.18);
  color: #f8e6c5;
  background:
    linear-gradient(135deg, rgba(131,27,27,0.32), rgba(0,0,0,0.24)),
    rgba(255,255,255,0.035);
  text-align: center;
}

.display-groups {
  display: grid;
  gap: 34px;
}

.display-group {
  padding: 0;
}

.display-group-head {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 18px;
  align-items: start;
  border-bottom: 1px solid rgba(214,183,125,0.14);
  padding-bottom: 20px;
  margin-bottom: 22px;
}

.display-group-head > span {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(214,183,125,0.38);
  color: var(--gold);
  background: rgba(0,0,0,0.32);
}

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

.display-grid .image-button img {
  object-fit: contain;
}

.display-grid .visual-card:only-child {
  grid-column: 1 / -1;
}

.display-grid .visual-card:first-child:nth-last-child(2),
.display-grid .visual-card:first-child:nth-last-child(2) ~ .visual-card {
  grid-column: span 1;
}

.video-showcase {
  display: grid;
  align-items: center;
  padding: 120px 42px;
  background: #050505;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.video-showcase-shade {
  background:
    linear-gradient(90deg, rgba(0,0,0,0.88), rgba(0,0,0,0.44) 50%, rgba(0,0,0,0.84)),
    linear-gradient(0deg, rgba(6,6,6,0.94), rgba(6,6,6,0.1) 52%, rgba(6,6,6,0.68));
}

.video-showcase-content {
  width: min(100%, 920px);
  margin-left: calc((100vw - min(100vw, var(--max))) / 2);
  padding: 44px;
  border: 1px solid rgba(214,183,125,0.22);
  border-radius: 8px;
  background: rgba(8,8,8,0.58);
  backdrop-filter: blur(12px);
}

.video-showcase-content h2 {
  font-size: clamp(34px, 5vw, 58px);
}

.video-showcase-content p {
  max-width: 740px;
  color: rgba(244,237,223,0.82);
  font-size: 18px;
}

.profile {
  display: grid;
  place-items: center;
  padding: 120px 42px;
}

.profile-shade {
  background:
    linear-gradient(90deg, rgba(0,0,0,0.9), rgba(0,0,0,0.58), rgba(0,0,0,0.88)),
    linear-gradient(0deg, rgba(6,6,6,0.94), rgba(6,6,6,0.16) 48%, rgba(6,6,6,0.72));
}

.profile-inner {
  width: min(100%, 980px);
  padding: 46px;
  background: rgba(8,8,8,0.72);
  backdrop-filter: blur(16px);
}

.profile-list {
  display: grid;
  gap: 14px;
  margin: 30px 0;
}

.profile-list div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 16px;
  border-bottom: 1px solid rgba(214,183,125,0.16);
  padding-bottom: 12px;
}

.profile-list dt {
  color: var(--gold);
}

.profile-list dd {
  margin: 0;
  color: rgba(244,237,223,0.82);
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: none;
  place-items: center;
  padding: 54px;
  background: rgba(0,0,0,0.9);
}

.lightbox.is-open {
  display: grid;
}

.lightbox img {
  max-width: min(100%, 1180px);
  max-height: 82vh;
  border: 1px solid var(--line);
  box-shadow: 0 22px 80px rgba(0,0,0,0.72);
}

.lightbox p {
  margin: 14px 0 0;
  color: var(--muted);
}

.lightbox-close {
  position: absolute;
  top: 22px;
  right: 26px;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  cursor: pointer;
  font-size: 26px;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 520ms ease, transform 520ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 1180px) {
  .site-header {
    top: 14px;
    width: calc(100% - 32px);
    align-items: flex-start;
    flex-direction: column;
    border-radius: 24px;
    padding: 14px 18px;
  }

  .nav-links {
    flex-wrap: wrap;
  }

  .section {
    padding: 86px 24px;
  }

  .mindmap-grid,
  .method-grid,
  .background-grid,
  .goal-grid,
  .research-grid,
  .tech-layout,
  .tech-grid,
  .display-grid,
  .device-chart {
    grid-template-columns: 1fr;
  }

  .system-panel {
    grid-template-columns: 1fr;
  }

  .system-panel-copy {
    border-top: 1px solid rgba(214,183,125,0.14);
    border-left: 0;
  }

  .video-showcase-content {
    margin: 0 auto;
  }
}

@media (max-width: 760px) {
  .hero {
    padding: 188px 20px 40px;
  }

  .hero-meta,
  .hero-actions {
    flex-direction: column;
    display: flex;
  }

  .chart-card,
  .display-group,
  .video-showcase-content,
  .profile-inner {
    padding: 24px;
  }

  .demand-row {
    grid-template-columns: 34px 1fr;
  }

  .demand-track,
  .demand-row em {
    grid-column: 2;
  }

  .age-bars {
    gap: 8px;
  }

  .mini-path,
  .persona-visual {
    grid-template-columns: 1fr;
  }

  .display-group-head,
  .profile-list div {
    grid-template-columns: 1fr;
  }

  .video-showcase,
  .profile {
    padding: 90px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .section-bg-video {
    display: none;
  }
}