:root {
  --xx-bg: #f7f1e6;
  --xx-bg-alt: #efe5d7;
  --xx-paper: rgba(255, 251, 245, 0.78);
  --xx-paper-strong: rgba(255, 250, 244, 0.92);
  --xx-line: rgba(43, 63, 66, 0.12);
  --xx-line-strong: rgba(43, 63, 66, 0.22);
  --xx-text: #243438;
  --xx-text-soft: #5f716f;
  --xx-heading: #162428;
  --xx-teal: #3d6670;
  --xx-teal-deep: #254a53;
  --xx-foam: #d2dfdc;
  --xx-sand: #d8c7ab;
  --xx-sand-deep: #bea585;
  --xx-shadow: 0 26px 70px rgba(29, 47, 51, 0.08);
  --xx-radius-sm: 20px;
  --xx-radius-md: 32px;
  --xx-radius-lg: 44px;
  --xx-container: min(1180px, calc(100vw - 48px));
  --xx-wide: min(1360px, calc(100vw - 48px));
  --xx-header: 92px;
  --xx-transition: 260ms ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--xx-text);
  line-height: 1.75;
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.78), transparent 28%),
    linear-gradient(180deg, #f8f3eb 0%, #f4ecdf 46%, #efe4d5 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.46;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 88px 88px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.24), transparent 76%);
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

main {
  overflow: visible;
}

.skip-link {
  position: absolute;
  left: -9999px;
}

.skip-link:focus {
  left: 20px;
  top: 20px;
  z-index: 100;
  padding: 12px 16px;
  border-radius: 999px;
  background: #fff;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 700ms ease,
    transform 700ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.screen-reader {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.xinxiang-page,
.xinxiang-home,
.xinxiang-world,
.xinxiang-systems {
  padding-top: 0;
}

.xx-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 40;
  padding: 20px 0;
  transition:
    padding var(--xx-transition),
    background-color var(--xx-transition),
    box-shadow var(--xx-transition);
}

.xx-header.is-scrolled {
  padding: 14px 0;
  background: rgba(244, 236, 225, 0.88);
  backdrop-filter: blur(18px);
  box-shadow: 0 12px 28px rgba(22, 36, 40, 0.08);
}

.xx-header-bar {
  width: min(1320px, calc(100vw - 28px));
  margin: 0 auto;
  padding: 14px 18px 14px 24px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  gap: 24px;
  justify-content: space-between;
  color: rgba(251, 247, 240, 0.92);
  background: rgba(23, 41, 46, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 18px 38px rgba(17, 28, 31, 0.12);
  backdrop-filter: blur(18px);
}

.xx-header.is-scrolled .xx-header-bar {
  color: var(--xx-heading);
  background: rgba(255, 251, 246, 0.94);
  border-color: rgba(25, 42, 46, 0.12);
}

.xx-header.is-scrolled .xx-brand-text strong {
  color: var(--xx-heading);
}

.xx-header.is-scrolled .xx-brand-text span,
.xx-header.is-scrolled .xx-nav a {
  color: rgba(22, 36, 40, 0.72);
}

.xx-header.is-scrolled .xx-nav a[aria-current="page"],
.xx-header.is-scrolled .xx-nav a:hover {
  color: var(--xx-heading);
}

.xx-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: fit-content;
}

.xx-brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  color: #fdf8ef;
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-weight: 700;
  letter-spacing: 0.08em;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.1), transparent 50%),
    linear-gradient(145deg, var(--xx-teal-deep), #567c84);
}

.xx-brand-text {
  display: grid;
  gap: 2px;
}

.xx-brand-text strong,
.xx-footer-brand strong {
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: 1.05rem;
  font-weight: 600;
}

.xx-brand-text span {
  color: inherit;
  opacity: 0.7;
  font-size: 0.88rem;
  letter-spacing: 0.08em;
}

.xx-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 22px;
}

.xx-nav a {
  position: relative;
  color: inherit;
  opacity: 0.78;
  transition: opacity var(--xx-transition), color var(--xx-transition);
}

.xx-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -10px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--xx-transition);
}

.xx-nav a[aria-current="page"],
.xx-nav a:hover {
  opacity: 1;
}

.xx-nav a[aria-current="page"]::after,
.xx-nav a:hover::after {
  transform: scaleX(1);
}

.xx-header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.xx-link-pill,
.xx-btn,
.xx-platform-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  transition:
    transform var(--xx-transition),
    background-color var(--xx-transition),
    border-color var(--xx-transition),
    color var(--xx-transition),
    box-shadow var(--xx-transition);
}

.xx-link-pill {
  min-height: 48px;
  padding-inline: 18px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.08);
}

.xx-header.is-scrolled .xx-link-pill {
  color: var(--xx-heading);
  border-color: rgba(25, 42, 46, 0.12);
  background: rgba(61, 102, 112, 0.1);
}

.xx-btn:hover,
.xx-link-pill:hover,
.xx-platform-link:hover {
  transform: translateY(-1px);
}

.xx-btn {
  border: 1px solid transparent;
}

.xx-btn-primary {
  color: #fdf8ef;
  background: linear-gradient(135deg, var(--xx-teal-deep), var(--xx-teal));
  box-shadow: 0 16px 32px rgba(37, 74, 83, 0.18);
}

.xx-btn-secondary {
  color: var(--xx-heading);
  border-color: var(--xx-line-strong);
  background: rgba(255, 255, 255, 0.5);
}

.xx-btn-ghost {
  color: var(--xx-heading);
  border-color: rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.1);
}

.xx-btn.wide {
  min-width: 186px;
}

.xx-container,
.xx-container-wide {
  width: 100%;
  margin: 0 auto;
}

.xx-container {
  max-width: var(--xx-container);
}

.xx-container-wide {
  max-width: var(--xx-wide);
}

.xx-section {
  position: relative;
  padding: 120px 0;
}

.xx-section.compact {
  padding: 92px 0;
}

.xx-section-head {
  display: grid;
  gap: 20px;
  margin-bottom: 46px;
}

.xx-section-head.split {
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  align-items: end;
  gap: 32px;
}

.xx-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  padding: 10px 16px;
  border-radius: 999px;
  color: var(--xx-text-soft);
  border: 1px solid var(--xx-line);
  background: rgba(255, 255, 255, 0.44);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  backdrop-filter: blur(14px);
}

.xx-kicker::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--xx-teal), var(--xx-sand));
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-family: "Noto Serif SC", "Songti SC", serif;
  color: var(--xx-heading);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.14;
}

h1 {
  font-size: clamp(2.7rem, 4.7vw, 4.9rem);
}

h2 {
  font-size: clamp(2rem, 3.2vw, 3.2rem);
}

h3 {
  font-size: clamp(1.4rem, 2vw, 1.9rem);
}

p {
  margin: 0;
  color: var(--xx-text-soft);
}

.lead {
  font-size: 1.06rem;
}

.text-block {
  display: grid;
  gap: 18px;
}

.xx-hero {
  min-height: 100vh;
  padding: 0 0 48px;
}

.xx-hero-shell {
  position: relative;
  width: 100%;
  margin: 0;
  padding: 124px 0 64px;
  overflow: hidden;
  border-radius: 0 0 56px 56px;
  background:
    radial-gradient(circle at 20% 14%, rgba(255, 247, 237, 0.26), transparent 18%),
    radial-gradient(circle at 82% 24%, rgba(188, 211, 208, 0.22), transparent 20%),
    linear-gradient(180deg, #325660 0%, #4b7076 46%, #72908d 100%);
}

.xx-hero-shell::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), transparent 20%),
    radial-gradient(circle at 72% 18%, rgba(255, 255, 255, 0.08), transparent 22%);
  pointer-events: none;
}

.float-layer {
  position: absolute;
  border-radius: 999px;
  filter: blur(5px);
  opacity: 0.9;
}

.float-layer.one {
  top: 10%;
  left: -3%;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(254, 240, 219, 0.22), transparent 72%);
}

.float-layer.two {
  right: 0;
  top: 16%;
  width: 360px;
  height: 320px;
  background: radial-gradient(circle, rgba(215, 231, 227, 0.2), transparent 70%);
}

.float-layer.three {
  bottom: 8%;
  right: 16%;
  width: 420px;
  height: 180px;
  border-radius: 40px;
  background: linear-gradient(135deg, rgba(255, 234, 214, 0.12), rgba(61, 102, 112, 0.18));
}

.xx-hero-grid {
  position: relative;
  z-index: 1;
  width: min(1360px, calc(100vw - 48px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(440px, 0.88fr);
  gap: 34px;
  align-items: center;
  min-height: calc(100vh - 196px);
}

.xx-hero-copy {
  display: grid;
  gap: 22px;
  color: rgba(250, 246, 239, 0.88);
  max-width: 820px;
  align-self: center;
}

.xx-hero-copy .xx-kicker {
  color: rgba(250, 246, 239, 0.76);
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
}

.xx-hero-copy h1,
.page-hero-copy h1 {
  color: #fff9f1;
  line-height: 0.96;
  letter-spacing: -0.045em;
}

.title-lines {
  display: grid;
  gap: 2px;
}

.title-lines span {
  display: block;
}

.xx-hero-copy .lead {
  max-width: 660px;
  color: rgba(250, 246, 239, 0.82);
  font-size: clamp(1.02rem, 1.3vw, 1.16rem);
}

.xx-hero-actions,
.hero-downloads,
.platform-actions,
.page-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-note {
  max-width: 680px;
  color: rgba(250, 246, 239, 0.68);
  font-size: 0.96rem;
}

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

.metric-card {
  padding: 22px 20px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(14px);
}

.metric-value {
  display: block;
  margin-bottom: 8px;
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: 2rem;
  color: #fff7ef;
}

.metric-card span:last-child {
  color: rgba(250, 246, 239, 0.74);
  font-size: 0.92rem;
}

.hero-platforms {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.xx-platform-link {
  color: rgba(251, 247, 240, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.08);
}

.xx-hero-visual {
  position: relative;
  padding: 28px;
  border-radius: 36px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(18px);
}

.xx-hero-visual > img {
  width: 100%;
  min-height: 720px;
  border-radius: 30px;
  object-fit: cover;
  box-shadow: 0 30px 70px rgba(15, 29, 32, 0.18);
}

.visual-card,
.visual-quote {
  position: absolute;
  border-radius: 28px;
  box-shadow: 0 18px 48px rgba(13, 22, 24, 0.16);
}

.visual-card {
  right: 26px;
  top: 28px;
  width: min(310px, 48%);
  padding: 22px;
  background: rgba(19, 34, 38, 0.68);
  color: rgba(250, 246, 239, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.visual-card p {
  color: rgba(250, 246, 239, 0.74);
}

.visual-quote {
  left: -16px;
  bottom: 18px;
  max-width: 340px;
  padding: 22px 22px 18px;
  background: rgba(255, 249, 240, 0.9);
}

.visual-quote p {
  color: var(--xx-text-soft);
}

.soft-band {
  margin-top: -10px;
}

.soft-band-shell {
  width: min(1300px, calc(100vw - 48px));
  margin: 0 auto;
  padding: 24px 30px;
  border-radius: 30px;
  background: rgba(255, 251, 244, 0.62);
  border: 1px solid rgba(43, 63, 66, 0.08);
  box-shadow: var(--xx-shadow);
}

.broadcast-row {
  display: flex;
  gap: 18px;
  align-items: center;
}

.broadcast-label {
  flex: 0 0 auto;
  font-family: "Noto Serif SC", "Songti SC", serif;
  color: var(--xx-heading);
}

.xx-marquee {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
}

.xx-marquee-track {
  display: inline-flex;
  gap: 28px;
  min-width: max-content;
  padding-left: 100%;
  animation: xxMarqueeMove 30s linear infinite;
}

.broadcast-item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--xx-text-soft);
  white-space: nowrap;
}

.broadcast-item::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--xx-teal);
  box-shadow: 0 0 0 5px rgba(61, 102, 112, 0.08);
}

@keyframes xxMarqueeMove {
  from {
    transform: translate3d(0, 0, 0);
  }

  to {
    transform: translate3d(-50%, 0, 0);
  }
}

.card-grid,
.feature-grid,
.world-card-grid,
.system-grid,
.principle-grid,
.govern-grid,
.platform-grid,
.footer-grid {
  display: grid;
  gap: 22px;
}

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

.card-grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.world-card-grid,
.system-grid,
.principle-grid,
.govern-grid,
.platform-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.xx-card,
.feature-card,
.story-panel,
.world-card,
.system-card,
.principle-card,
.govern-card,
.platform-card,
.download-panel,
.cta-panel,
.stage-card {
  padding: 28px;
  border-radius: 30px;
  border: 1px solid var(--xx-line);
  background: rgba(255, 255, 255, 0.46);
  box-shadow: 0 18px 42px rgba(29, 47, 51, 0.05);
}

.feature-card,
.world-card,
.system-card,
.principle-card,
.govern-card {
  display: grid;
  gap: 16px;
}

.icon-box {
  width: 48px;
  height: 48px;
  display: inline-grid;
  place-items: center;
  border-radius: 18px;
  background: rgba(61, 102, 112, 0.1);
  color: var(--xx-teal-deep);
}

.tag-row,
.soft-tags,
.stage-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.soft-tag,
.stage-chip,
.story-tag {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(61, 102, 112, 0.08);
  color: var(--xx-teal-deep);
  font-size: 0.92rem;
}

.feature-card ul,
.system-card ul,
.govern-card ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--xx-text-soft);
}

.feature-card li + li,
.system-card li + li,
.govern-card li + li {
  margin-top: 8px;
}

.horizontal-story {
  height: var(--story-height, auto);
  padding: 34px 0 42px;
}

.story-sticky {
  position: sticky;
  top: calc(var(--xx-header) + 28px);
  min-height: calc(100vh - var(--xx-header) - 132px);
  display: flex;
  align-items: center;
  overflow: hidden;
}

.story-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: clamp(360px, 34vw, 470px);
  gap: 20px;
  padding: 0 24px;
  width: max-content;
  align-items: center;
  will-change: transform;
}

.story-panel {
  display: grid;
  grid-template-rows: auto minmax(108px, auto) auto minmax(0, 1fr) auto;
  gap: 16px;
  min-height: 560px;
  padding: 26px;
  align-self: center;
}

.story-panel h3 {
  font-size: clamp(1.12rem, 1.6vw, 1.5rem);
  line-height: 1.3;
  letter-spacing: -0.02em;
  min-height: calc(1.3em * 3);
}

.story-panel img {
  width: 100%;
  aspect-ratio: 1.25;
  object-fit: cover;
  border-radius: 24px;
  background: rgba(244, 239, 230, 0.8);
}

.story-index {
  color: var(--xx-text-soft);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.story-copy {
  display: grid;
  gap: 14px;
  align-content: start;
  min-height: 0;
}

.download-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 1.08fr);
  gap: 34px;
  align-items: start;
}

.download-panel.reveal,
.download-panel.reveal.is-visible {
  transform: none;
}

.platform-list {
  display: grid;
  gap: 14px;
}

.platform-card {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 20px 20px;
  transition:
    transform 320ms ease,
    border-color 320ms ease,
    background-color 320ms ease,
    box-shadow 320ms ease;
}

.platform-card strong {
  font-size: 1rem;
}

.platform-card p {
  font-size: 0.88rem;
  line-height: 1.6;
}

.platform-card .xx-btn {
  min-width: 124px;
  min-height: 46px;
  padding: 0 18px;
  font-size: 0.95rem;
}

.platform-card.is-active {
  border-color: rgba(37, 74, 83, 0.18);
  background: rgba(255, 255, 255, 0.7);
  box-shadow: 0 24px 54px rgba(29, 47, 51, 0.08);
  transform: translateX(6px);
}

.platform-card .xx-btn {
  color: var(--xx-heading);
  border-color: var(--xx-line-strong);
  background: rgba(255, 255, 255, 0.5);
  box-shadow: none;
}

.platform-card.is-active .xx-btn {
  color: #fdf8ef;
  border-color: transparent;
  background: linear-gradient(135deg, var(--xx-teal-deep), var(--xx-teal));
  box-shadow: 0 16px 32px rgba(37, 74, 83, 0.18);
}

.download-section {
  position: relative;
  min-height: auto;
}

.download-section .xx-container {
  position: relative;
  min-height: 152vh;
}

.download-sticky-shell {
  position: relative;
  width: 100%;
  min-height: calc(100vh - var(--xx-header) - 72px);
}

.download-sticky-shell.is-pinned {
  z-index: 8;
}

.download-sticky-shell.is-ended {
  z-index: 1;
}

.download-copy {
  position: relative;
}

.download-stage {
  position: relative;
  min-height: calc(100vh - var(--xx-header) - 132px);
}

.download-stage-shell {
  position: relative;
  min-height: calc(100vh - var(--xx-header) - 132px);
  padding: 26px;
  overflow: hidden;
  border-radius: 38px;
  border: 1px solid rgba(43, 63, 66, 0.08);
  background:
    radial-gradient(circle at 22% 16%, rgba(255, 251, 245, 0.78), transparent 24%),
    linear-gradient(180deg, rgba(223, 213, 194, 0.72), rgba(243, 237, 228, 0.92));
  box-shadow: 0 24px 58px rgba(29, 47, 51, 0.08);
}

.download-stage-backdrop {
  position: absolute;
  inset: 34px 24px 28px 24px;
  border-radius: 34px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background:
    radial-gradient(circle at 18% 22%, rgba(255, 255, 255, 0.58), transparent 18%),
    linear-gradient(180deg, rgba(247, 243, 236, 0.74), rgba(232, 224, 209, 0.94));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.38);
}

.download-device-stack {
  position: absolute;
  inset: 56px 54px 90px 54px;
  pointer-events: none;
}

.device-stage {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: translate3d(0, 34px, 0) scale(0.94);
  transition:
    opacity 420ms ease,
    transform 420ms ease;
  will-change: transform, opacity;
}

.device-stage.is-active {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
}

.phone-shell,
.desktop-shell {
  position: absolute;
  border-radius: 34px;
  background: #264c56;
  box-shadow: 0 36px 70px rgba(30, 50, 56, 0.16);
}

.phone-shell {
  left: 7%;
  top: 6%;
  width: 42%;
  height: 82%;
  padding: 18px;
  border-radius: 32px;
}

.phone-notch {
  position: absolute;
  left: 50%;
  top: 12px;
  width: 28%;
  height: 10px;
  border-radius: 999px;
  background: rgba(12, 24, 28, 0.56);
  transform: translateX(-50%);
}

.phone-screen {
  position: absolute;
  inset: 24px;
  overflow: hidden;
  border-radius: 24px;
  background:
    linear-gradient(180deg, #406a76 0%, #3f6974 58%, #2b4f58 100%);
}

.screen-topline {
  position: absolute;
  left: 22px;
  right: 22px;
  top: 24px;
  height: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
}

.screen-bubble {
  position: absolute;
  border-radius: 999px;
  background: rgba(255, 250, 244, 0.82);
}

.screen-bubble.one {
  left: 24px;
  top: 72px;
  width: 42%;
  height: 42px;
}

.screen-bubble.two {
  right: 24px;
  top: 130px;
  width: 54%;
  height: 50px;
  background: rgba(212, 225, 222, 0.86);
}

.screen-wave {
  position: absolute;
  left: -10%;
  right: -8%;
  bottom: -4%;
  height: 42%;
  border-radius: 50%;
  background:
    linear-gradient(180deg, rgba(222, 209, 184, 0.96), rgba(214, 198, 170, 0.96));
}

.desktop-shell {
  right: 2%;
  top: 12%;
  width: 74%;
  height: 72%;
  padding: 18px;
}

.desktop-topbar {
  height: 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
}

.desktop-layout {
  display: grid;
  grid-template-columns: 112px 1fr;
  gap: 16px;
  height: calc(100% - 34px);
  margin-top: 16px;
}

.desktop-sidebar {
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.08);
}

.desktop-main {
  padding: 26px;
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
}

.desktop-line {
  height: 12px;
  border-radius: 999px;
  background: rgba(255, 248, 240, 0.86);
}

.desktop-line.long {
  width: 58%;
}

.desktop-line.mid {
  width: 42%;
  margin-top: 18px;
  background: rgba(210, 223, 220, 0.82);
}

.desktop-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.desktop-cards span {
  display: block;
  min-height: 132px;
  border-radius: 20px;
  background: rgba(255, 251, 245, 0.12);
}

.desktop-cards span:nth-child(2) {
  background: rgba(221, 208, 182, 0.72);
}

.desktop-cards span:nth-child(3) {
  background: rgba(212, 225, 222, 0.8);
}

.device-float {
  position: absolute;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  background: rgba(255, 251, 244, 0.92);
  box-shadow: 0 14px 30px rgba(22, 38, 42, 0.12);
  color: var(--xx-heading);
}

.bubble-a {
  right: 12%;
  top: 16%;
}

.bubble-b {
  right: 6%;
  bottom: 22%;
}

.bubble-c {
  left: 4%;
  top: 18%;
}

.bubble-d {
  left: 10%;
  bottom: 18%;
}

.download-stage-card {
  position: absolute;
  left: 28px;
  bottom: 28px;
  width: min(310px, 44%);
  padding: 20px;
  border-radius: 26px;
  background: rgba(255, 251, 244, 0.92);
  box-shadow: 0 18px 44px rgba(21, 35, 38, 0.12);
  z-index: 2;
  opacity: 1;
  transform: translate3d(0, 0, 0);
  transition:
    opacity 300ms ease,
    transform 300ms ease;
}

.download-stage-card.is-hidden {
  opacity: 0;
  transform: translate3d(0, 18px, 0);
  pointer-events: none;
}

.download-stage-card p {
  margin-top: 10px;
}

.download-stage-chip {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 18px;
  border-radius: 999px;
  font-size: 0.96rem;
  color: var(--xx-heading);
  background: rgba(255, 250, 244, 0.9);
  border: 1px solid rgba(43, 63, 66, 0.1);
  box-shadow: 0 14px 28px rgba(24, 40, 44, 0.08);
  z-index: 2;
  transition:
    transform 320ms ease,
    background-color 320ms ease,
    color 320ms ease;
}

.download-stage-chip.chip-one {
  right: 96px;
  top: 74px;
}

.download-stage-chip.chip-two {
  right: 60px;
  top: 136px;
}

.download-stage-orbit {
  position: absolute;
  inset: 60px 42px 42px 42px;
  border-radius: 38px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  opacity: 0.62;
}

.download-stage-glow {
  position: absolute;
  right: 42px;
  bottom: 18px;
  width: 220px;
  height: 220px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(205, 224, 221, 0.58), transparent 68%);
  filter: blur(6px);
}

.download-stage-shell.is-windows .chip-one {
  transform: translate3d(-12px, 10px, 0);
  background: rgba(255, 250, 244, 0.78);
}

.download-stage-shell.is-windows .chip-two {
  transform: translate3d(0, -10px, 0);
  background: rgba(255, 250, 244, 0.96);
}

.web-entry-panel {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 0.88fr);
  gap: 34px;
  align-items: center;
  padding: 38px;
  border-radius: 34px;
  border: 1px solid var(--xx-line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.52), rgba(255, 255, 255, 0.44)),
    radial-gradient(circle at 82% 18%, rgba(205, 224, 221, 0.22), transparent 22%);
  box-shadow: 0 22px 52px rgba(29, 47, 51, 0.06);
}

.web-entry-copy {
  display: grid;
  gap: 18px;
  max-width: 640px;
}

.web-entry-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.web-entry-visual {
  position: relative;
  min-height: 360px;
}

.web-entry-window {
  position: relative;
  min-height: 360px;
  overflow: hidden;
  border-radius: 30px;
  border: 1px solid rgba(36, 68, 78, 0.14);
  background: linear-gradient(180deg, rgba(47, 82, 90, 0.98), rgba(81, 115, 118, 0.96));
  box-shadow: 0 26px 60px rgba(23, 39, 43, 0.12);
}

.web-entry-window::before {
  content: "";
  position: absolute;
  inset: auto -10% -8% -10%;
  height: 44%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 10%, rgba(255, 247, 232, 0.26), transparent 30%),
    linear-gradient(180deg, rgba(230, 216, 190, 0.92), rgba(214, 197, 169, 0.88));
}

.web-entry-window::after {
  content: "";
  position: absolute;
  inset: 20% 12% 18% 12%;
  border-radius: 26px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background:
    radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.08), transparent 18%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), transparent 40%);
}

.web-entry-window-bar {
  position: absolute;
  left: 30px;
  right: 30px;
  top: 26px;
  height: 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
}

.web-entry-window-body {
  position: absolute;
  inset: 0;
}

.window-note {
  position: absolute;
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  color: rgba(248, 243, 234, 0.9);
  background: rgba(18, 31, 36, 0.46);
  backdrop-filter: blur(12px);
}

.window-note:first-child {
  left: 52px;
  top: 90px;
}

.window-note.second {
  right: 48px;
  top: 148px;
}

.window-note.third {
  left: 84px;
  bottom: 62px;
}

.page-hero {
  padding: 0 0 36px;
}

.page-hero-shell {
  position: relative;
  width: min(1320px, calc(100vw - 36px));
  margin: 0 auto;
  padding: 132px 42px 44px;
  border-radius: 42px;
  overflow: hidden;
  background:
    radial-gradient(circle at 14% 18%, rgba(255, 246, 233, 0.28), transparent 18%),
    radial-gradient(circle at 84% 14%, rgba(203, 220, 215, 0.18), transparent 22%),
    linear-gradient(180deg, rgba(49, 84, 93, 0.96), rgba(92, 125, 127, 0.94));
}

.xinxiang-page .page-hero,
.xinxiang-page .page-hero-shell {
  min-height: 100vh;
}

.xinxiang-page .page-hero {
  padding: 0 0 48px;
}

.xinxiang-page .page-hero-shell {
  width: 100%;
  margin: 0;
  padding: 124px 0 64px;
  border-radius: 0 0 56px 56px;
}

.page-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.86fr);
  gap: 30px;
  align-items: center;
}

.xinxiang-page .page-hero-grid {
  width: min(1360px, calc(100vw - 48px));
  margin: 0 auto;
  min-height: calc(100vh - 176px);
  align-items: center;
}

.page-hero-copy {
  display: grid;
  gap: 22px;
  color: rgba(250, 246, 239, 0.86);
  align-self: center;
}

.xinxiang-world .page-hero-copy,
.xinxiang-systems .page-hero-copy {
  transform: translateY(-22px);
}

.page-hero-copy .xx-kicker {
  color: rgba(250, 246, 239, 0.76);
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
}

.page-hero-copy p {
  color: rgba(250, 246, 239, 0.76);
}

.page-hero-visual {
  display: grid;
  gap: 16px;
}

.page-hero-visual img {
  width: 100%;
  border-radius: 28px;
}

.page-hero-note {
  padding: 20px;
  border-radius: 24px;
  background: rgba(255, 251, 244, 0.84);
}

.journey-parallax {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: 34px;
  align-items: stretch;
}

.journey-scene-column {
  position: relative;
  min-height: 100%;
  align-self: stretch;
}

.journey-scene-panel {
  position: sticky;
  top: calc(var(--xx-header) + 26px);
  display: grid;
  gap: 20px;
  min-height: calc(100vh - var(--xx-header) - 76px);
  padding: 28px;
  border-radius: 34px;
  background:
    linear-gradient(180deg, rgba(27, 48, 54, 0.96), rgba(47, 77, 83, 0.9)),
    radial-gradient(circle at top right, rgba(207, 225, 220, 0.16), transparent 22%);
  box-shadow: 0 28px 64px rgba(16, 28, 30, 0.14);
  color: rgba(250, 246, 239, 0.86);
  overflow: hidden;
}

.journey-scene-visual {
  position: relative;
  min-height: clamp(420px, 58vh, 620px);
  border-radius: 28px;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 20%, rgba(255, 248, 234, 0.18), transparent 18%),
    radial-gradient(circle at 82% 16%, rgba(187, 210, 205, 0.18), transparent 18%),
    linear-gradient(180deg, rgba(30, 57, 62, 0.92), rgba(57, 88, 93, 0.94));
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition:
    background 420ms ease,
    box-shadow 420ms ease,
    transform 420ms ease;
}

.journey-scene-map {
  position: absolute;
  inset: 24px;
  width: calc(100% - 48px);
  height: calc(100% - 48px);
  object-fit: cover;
  border-radius: 24px;
  opacity: 0.42;
  filter: saturate(0.84);
  transform: translate3d(0, 0, 0) scale(1.02);
  transition:
    transform 460ms ease,
    opacity 460ms ease,
    filter 460ms ease;
}

.journey-scene-glow,
.journey-scene-wave {
  position: absolute;
  pointer-events: none;
  transition:
    opacity 320ms ease,
    transform 320ms ease;
}

.journey-scene-glow {
  border-radius: 999px;
  filter: blur(10px);
}

.journey-scene-glow.glow-one {
  left: 8%;
  top: 12%;
  width: 32%;
  height: 24%;
  background: rgba(215, 198, 167, 0.18);
}

.journey-scene-glow.glow-two {
  right: 10%;
  bottom: 18%;
  width: 34%;
  height: 28%;
  background: rgba(196, 222, 218, 0.16);
}

.journey-scene-wave {
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  opacity: 0.46;
}

.journey-scene-wave.wave-one {
  left: 13%;
  top: 22%;
  width: 42%;
  height: 28%;
}

.journey-scene-wave.wave-two {
  right: 8%;
  top: 18%;
  width: 30%;
  height: 42%;
}

.journey-scene-marker {
  position: absolute;
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  font-size: 0.88rem;
  color: rgba(255, 249, 241, 0.92);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
  box-shadow: 0 10px 24px rgba(11, 23, 26, 0.16);
  opacity: 0.22;
  transform: translate3d(0, 10px, 0) scale(0.96);
  transition:
    opacity 320ms ease,
    transform 320ms ease,
    background-color 320ms ease;
}

.marker-arrival {
  left: 10%;
  top: 14%;
}

.marker-expression {
  right: 12%;
  top: 24%;
}

.marker-travel {
  left: 18%;
  bottom: 28%;
}

.marker-community {
  right: 15%;
  bottom: 22%;
}

.marker-return {
  left: 42%;
  bottom: 16%;
}

.journey-scene-copy {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 24px;
  width: min(440px, calc(100% - 48px));
  padding: 22px 24px;
  border-radius: 26px;
  background: rgba(255, 250, 244, 0.9);
  box-shadow: 0 18px 40px rgba(18, 31, 34, 0.14);
  backdrop-filter: blur(18px);
  transition:
    transform 420ms ease,
    box-shadow 420ms ease,
    background-color 420ms ease;
}

.journey-scene-copy .stage-order {
  display: block;
  color: var(--xx-text-soft);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.journey-scene-copy h3 {
  margin-top: 10px;
  font-size: clamp(1.55rem, 2vw, 2.05rem);
}

.journey-scene-copy p {
  margin-top: 12px;
  color: var(--xx-text-soft);
}

.journey-scene-meta {
  display: grid;
  gap: 16px;
}

.journey-scene-meta p {
  color: rgba(250, 246, 239, 0.72);
  max-width: 44ch;
}

.stage-chip-row {
  margin-top: 18px;
}

.journey-chip-row {
  margin-top: 0;
}

.stage-chip {
  background: rgba(255, 255, 255, 0.1);
  color: rgba(250, 246, 239, 0.74);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.stage-chip.is-active {
  color: #fff9f1;
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.16);
}

.journey-scroll-column {
  display: grid;
  gap: 14px;
}

.journey-trigger {
  position: relative;
  min-height: clamp(280px, 52vh, 420px);
  display: grid;
  align-items: center;
  padding: 4px 0;
}

.journey-trigger-card {
  display: grid;
  gap: 16px;
  padding: 24px;
  border-radius: 30px;
  border: 1px solid rgba(43, 63, 66, 0.08);
  background: rgba(255, 255, 255, 0.56);
  box-shadow: 0 16px 34px rgba(29, 47, 51, 0.05);
  transition:
    transform 280ms ease,
    border-color 280ms ease,
    box-shadow 280ms ease,
    background-color 280ms ease;
}

.journey-trigger .stage-order {
  color: var(--xx-text-soft);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.journey-trigger-card h3 {
  font-size: clamp(1.45rem, 1.8vw, 1.95rem);
}

.journey-trigger-summary,
.journey-trigger-note {
  color: var(--xx-text-soft);
}

.journey-trigger-note {
  color: rgba(36, 52, 56, 0.78);
}

.journey-points {
  display: grid;
  gap: 10px;
}

.journey-points span {
  position: relative;
  display: block;
  padding-left: 18px;
  color: var(--xx-text-soft);
}

.journey-points span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--xx-teal), var(--xx-sand));
}

.journey-trigger.is-active .journey-trigger-card {
  transform: translate3d(12px, -4px, 0);
  border-color: rgba(61, 102, 112, 0.18);
  background: rgba(255, 255, 255, 0.74);
  box-shadow: 0 22px 44px rgba(29, 47, 51, 0.08);
}

.journey-parallax[data-active-stage="arrival"] .marker-arrival,
.journey-parallax[data-active-stage="expression"] .marker-expression,
.journey-parallax[data-active-stage="travel"] .marker-travel,
.journey-parallax[data-active-stage="community"] .marker-community,
.journey-parallax[data-active-stage="return"] .marker-return {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
  background: rgba(255, 255, 255, 0.18);
}

.journey-parallax[data-active-stage="arrival"] .journey-scene-visual {
  background:
    radial-gradient(circle at 16% 18%, rgba(227, 210, 182, 0.24), transparent 18%),
    radial-gradient(circle at 82% 22%, rgba(196, 220, 214, 0.16), transparent 20%),
    linear-gradient(180deg, rgba(32, 57, 62, 0.94), rgba(57, 88, 93, 0.94));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.journey-parallax[data-active-stage="expression"] .journey-scene-visual {
  background:
    radial-gradient(circle at 20% 18%, rgba(188, 216, 212, 0.28), transparent 18%),
    radial-gradient(circle at 78% 72%, rgba(218, 201, 169, 0.16), transparent 18%),
    linear-gradient(180deg, rgba(29, 55, 60, 0.92), rgba(74, 111, 118, 0.92));
  transform: translate3d(0, -6px, 0);
}

.journey-parallax[data-active-stage="travel"] .journey-scene-visual {
  background:
    radial-gradient(circle at 18% 22%, rgba(223, 205, 175, 0.24), transparent 18%),
    radial-gradient(circle at 82% 24%, rgba(196, 220, 214, 0.14), transparent 16%),
    linear-gradient(180deg, rgba(28, 54, 59, 0.94), rgba(72, 99, 104, 0.92));
  transform: translate3d(0, -12px, 0);
}

.journey-parallax[data-active-stage="community"] .journey-scene-visual {
  background:
    radial-gradient(circle at 16% 20%, rgba(221, 202, 170, 0.22), transparent 18%),
    radial-gradient(circle at 80% 70%, rgba(194, 221, 215, 0.18), transparent 18%),
    linear-gradient(180deg, rgba(31, 57, 62, 0.94), rgba(64, 94, 99, 0.94));
  transform: translate3d(0, -8px, 0);
}

.journey-parallax[data-active-stage="return"] .journey-scene-visual {
  background:
    radial-gradient(circle at 50% 16%, rgba(245, 237, 222, 0.14), transparent 18%),
    radial-gradient(circle at 76% 72%, rgba(187, 210, 205, 0.16), transparent 18%),
    linear-gradient(180deg, rgba(31, 57, 62, 0.94), rgba(80, 112, 117, 0.9));
  transform: translate3d(0, -14px, 0);
}

.journey-parallax[data-active-stage="arrival"] .journey-scene-map {
  transform: translate3d(-2%, -1%, 0) scale(1.02);
}

.journey-parallax[data-active-stage="expression"] .journey-scene-map {
  transform: translate3d(2%, 1%, 0) scale(1.06);
  opacity: 0.52;
  filter: saturate(1);
}

.journey-parallax[data-active-stage="travel"] .journey-scene-map {
  transform: translate3d(-1%, 4%, 0) scale(1.08) rotate(-1.2deg);
  opacity: 0.56;
}

.journey-parallax[data-active-stage="community"] .journey-scene-map {
  transform: translate3d(1%, -1%, 0) scale(1.05);
  opacity: 0.5;
}

.journey-parallax[data-active-stage="return"] .journey-scene-map {
  transform: translate3d(0, 3%, 0) scale(1.01);
  opacity: 0.46;
  filter: saturate(0.76);
}

.journey-parallax[data-active-stage="arrival"] .wave-one {
  transform: translate3d(-10px, 0, 0) scale(1);
}

.journey-parallax[data-active-stage="expression"] .wave-one {
  transform: translate3d(10px, -8px, 0) scale(1.18);
  opacity: 0.68;
}

.journey-parallax[data-active-stage="travel"] .wave-two {
  transform: translate3d(-14px, 10px, 0) scale(1.12) rotate(-6deg);
  opacity: 0.66;
}

.journey-parallax[data-active-stage="community"] .glow-two {
  transform: translate3d(-10px, -10px, 0) scale(1.18);
  opacity: 0.76;
}

.journey-parallax[data-active-stage="return"] .glow-one {
  transform: translate3d(16px, -8px, 0) scale(0.84);
  opacity: 0.46;
}

.journey-parallax[data-active-stage="arrival"] .journey-scene-copy {
  transform: translate3d(0, 0, 0);
}

.journey-parallax[data-active-stage="expression"] .journey-scene-copy {
  transform: translate3d(12px, -8px, 0);
}

.journey-parallax[data-active-stage="travel"] .journey-scene-copy {
  transform: translate3d(18px, -12px, 0);
}

.journey-parallax[data-active-stage="community"] .journey-scene-copy {
  transform: translate3d(10px, -6px, 0);
}

.journey-parallax[data-active-stage="return"] .journey-scene-copy {
  transform: translate3d(0, -14px, 0);
  background: rgba(255, 252, 247, 0.92);
}

.atlas-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.98fr);
  gap: 26px;
  align-items: center;
}

.atlas-panel img,
.systems-visual img {
  width: 100%;
  border-radius: 28px;
}

.systems-visual {
  display: grid;
  gap: 18px;
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.stack-card {
  padding: 24px;
  border-radius: 28px;
  border: 1px solid var(--xx-line);
  background: rgba(255, 255, 255, 0.5);
}

.stack-card span {
  display: inline-flex;
  margin-bottom: 14px;
  color: var(--xx-text-soft);
}

.cta-panel {
  text-align: center;
  display: grid;
  gap: 18px;
}

.cta-panel .xx-btn {
  justify-self: center;
}

.xx-footer {
  padding: 44px 0 28px;
  color: rgba(248, 243, 234, 0.84);
  background:
    radial-gradient(circle at top left, rgba(214, 230, 227, 0.12), transparent 26%),
    linear-gradient(180deg, #22373d 0%, #17262b 100%);
}

.xx-footer-shell {
  width: min(1320px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 40px;
  border-radius: 36px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  grid-template-columns: 1.1fr repeat(3, 1fr);
}

.xx-footer-brand p,
.xx-footer-column a,
.xx-footer-legal,
.xx-footer-note,
.xx-footer-column span {
  color: rgba(248, 243, 234, 0.66);
}

.xx-footer-brand p {
  max-width: 360px;
  margin-top: 14px;
}

.xx-footer-column {
  display: grid;
  gap: 12px;
}

.xx-footer-column strong {
  color: #fff8ef;
}

.xx-footer-meta {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.xx-footer-legal {
  max-width: 760px;
  font-size: 0.92rem;
}

@media (max-width: 1180px) {
  .xx-hero-grid,
  .page-hero-grid,
  .download-panel,
  .web-entry-panel,
  .atlas-panel,
  .journey-parallax,
  .xx-section-head.split,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .feature-grid,
  .card-grid.four,
  .stack-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 960px) {
  .xx-header {
    padding: 14px 0;
  }

  .xx-header-bar {
    flex-wrap: wrap;
    justify-content: flex-start;
    border-radius: 30px;
  }

  .xx-header-actions {
    margin-left: auto;
  }

  .xx-hero {
    min-height: auto;
  }

  .broadcast-row {
    flex-wrap: wrap;
  }

  .xx-marquee {
    flex-basis: 100%;
  }

  .xx-hero-shell,
  .page-hero-shell {
    padding-inline: 0;
  }

  .xx-hero-grid {
    min-height: auto;
    align-items: start;
  }

  .xx-hero-visual {
    order: -1;
  }

  .story-sticky {
    position: relative;
    top: 0;
    min-height: auto;
  }

  .story-track {
    grid-auto-flow: row;
    grid-auto-columns: auto;
    width: auto;
    padding: 0;
    transform: none !important;
  }

  .horizontal-story {
    height: auto;
  }

  .journey-scene-panel {
    position: relative;
    top: 0;
    min-height: auto;
  }

  .journey-trigger {
    min-height: auto;
    padding: 0;
  }

  .journey-scroll-column {
    gap: 18px;
  }

  .hero-metrics,
  .card-grid.three,
  .world-card-grid,
  .system-grid,
  .principle-grid,
  .govern-grid,
  .platform-grid,
  .feature-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .xinxiang-page {
    padding-top: 0;
  }

  .xx-header-bar {
    width: min(1320px, calc(100vw - 20px));
    padding: 16px;
  }

  .xx-brand {
    width: 100%;
  }

  .xx-nav {
    justify-content: flex-start;
    gap: 10px 16px;
  }

  .xx-header-actions {
    width: 100%;
    margin-left: 0;
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .xx-section {
    padding: 88px 0;
  }

  .xx-section.compact {
    padding: 72px 0;
  }

  .xx-hero-grid,
  .page-hero-grid {
    width: min(1360px, calc(100vw - 24px));
  }

  .xinxiang-world .page-hero-copy,
  .xinxiang-systems .page-hero-copy {
    transform: none;
  }

  h1 {
    font-size: clamp(2.3rem, 10vw, 3.5rem);
  }

  .xx-card,
  .feature-card,
  .story-panel,
  .world-card,
  .system-card,
  .principle-card,
  .govern-card,
  .platform-card,
  .download-panel,
  .web-entry-panel,
  .cta-panel,
  .stage-card,
  .journey-scene-panel,
  .journey-trigger-card {
    padding: 22px;
    border-radius: 24px;
  }

  .journey-scene-visual {
    min-height: 360px;
  }

  .journey-scene-copy {
    left: 18px;
    right: 18px;
    bottom: 18px;
    width: auto;
    padding: 18px;
  }

  .download-stage,
  .download-stage-shell,
  .web-entry-visual,
  .web-entry-window {
    min-height: 420px;
  }

  .download-section {
    min-height: auto;
  }

  .download-section .xx-container {
    min-height: auto;
  }

  .download-copy,
  .download-stage,
  .download-panel,
  .download-sticky-shell {
    position: relative;
    top: 0;
  }

  .download-device-stack {
    inset: 42px 32px 98px 32px;
  }

  .xx-hero-visual,
  .page-hero-shell {
    padding: 22px;
    border-radius: 28px;
  }

  .xx-hero-visual > img {
    min-height: 480px;
    border-radius: 24px;
  }

  .visual-card,
  .visual-quote {
    position: static;
    width: auto;
    max-width: none;
    margin-top: 18px;
  }

  .xx-footer-shell {
    padding: 28px;
  }

  .xx-footer-meta {
    flex-direction: column;
  }
}

@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;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .device-stage,
  .download-stage-card {
    transition: none;
  }
}