:root {
  --bg: #050505;
  --bg-2: #090a08;
  --ink: #f8f7ee;
  --muted: rgba(248, 247, 238, 0.68);
  --muted-strong: rgba(248, 247, 238, 0.84);
  --yellow: #ffd400;
  --yellow-2: #ffec4d;
  --yellow-3: #ffb900;
  --panel: rgba(17, 18, 14, 0.82);
  --panel-soft: rgba(255, 255, 255, 0.055);
  --line: rgba(255, 255, 255, 0.14);
  --line-yellow: rgba(255, 212, 0, 0.58);
  --shadow-yellow: rgba(255, 212, 0, 0.34);
  --max: 1180px;
  --radius-sm: 14px;
  --radius-md: 22px;
  --radius-lg: 34px;
  color-scheme: dark;
}

@font-face {
  font-family: "YQBrandTitle";
  src: url("./assets/fonts/AlimamaShuHeiTi-Bold.otf") format("opentype");
  font-display: swap;
  font-style: normal;
  font-weight: 900;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 120px;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "SF Pro Display",
    "PingFang SC",
    "Hiragino Sans GB",
    "Microsoft YaHei",
    sans-serif;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

img,
svg {
  display: block;
}

img {
  max-width: 100%;
  height: auto;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.site-shell {
  position: relative;
  isolation: isolate;
  min-height: 100vh;
  overflow: hidden;
  background:
    radial-gradient(circle at 80% 2%, rgba(255, 212, 0, 0.12), transparent 34%),
    linear-gradient(180deg, #020202 0%, #0a0a08 46%, #020202 100%);
}

.ambient-grid,
.cursor-light,
.noise-layer,
.speed-lines {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: -3;
}

.ambient-grid,
.noise-layer {
  opacity: 0.18;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(180deg, transparent, #000 14%, #000 78%, transparent);
}

.speed-lines::before,
.speed-lines::after {
  content: "";
  position: absolute;
  width: 720px;
  height: 720px;
  border: 1px solid rgba(255, 212, 0, 0.16);
  border-left-color: transparent;
  border-bottom-color: rgba(255, 212, 0, 0.38);
  border-radius: 50%;
  animation: rotate-court 22s linear infinite;
}

.speed-lines::before {
  top: 18vh;
  right: -300px;
}

.speed-lines::after {
  bottom: 4vh;
  left: -360px;
  width: 920px;
  height: 920px;
  animation-duration: 30s;
  animation-direction: reverse;
}

.cursor-light {
  width: 420px;
  height: 420px;
  inset: auto;
  left: var(--x, 68%);
  top: var(--y, 20%);
  z-index: -2;
  translate: -50% -50%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 212, 0, 0.18), transparent 66%);
  filter: blur(12px);
  opacity: 0.9;
}

.top-nav {
  position: fixed;
  top: 18px;
  left: 50%;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 36px), var(--max));
  min-height: 66px;
  padding: 11px 13px;
  translate: -50% 0;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 999px;
  background: rgba(3, 3, 3, 0.64);
  box-shadow: 0 22px 82px rgba(0, 0, 0, 0.42);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  backdrop-filter: blur(18px) saturate(1.2);
}

.top-nav.home-nav {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  column-gap: 18px;
  isolation: isolate;
  overflow: visible;
  min-height: 72px;
  padding: 10px 12px;
  border-color: rgba(255, 255, 255, 0.36);
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0.052) 38%, rgba(255, 214, 10, 0.065) 72%, rgba(255, 255, 255, 0.09)),
    radial-gradient(circle at 50% -58%, rgba(255, 255, 255, 0.34), transparent 38%),
    rgba(255, 255, 255, 0.018);
  box-shadow:
    0 24px 82px rgba(0, 0, 0, 0.38),
    0 8px 30px rgba(255, 212, 0, 0.09),
    inset 0 1px 0 rgba(255, 255, 255, 0.74),
    inset 0 -1px 0 rgba(255, 255, 255, 0.22),
    inset 20px 0 42px rgba(255, 255, 255, 0.045),
    inset -28px 0 46px rgba(255, 214, 10, 0.065);
  -webkit-backdrop-filter: blur(16px) saturate(2.05) brightness(1.04);
  backdrop-filter: blur(16px) saturate(2.05) brightness(1.04);
}

.top-nav.home-nav::before {
  content: "";
  position: absolute;
  inset: 1px;
  z-index: -1;
  border-radius: inherit;
  background:
    linear-gradient(110deg, transparent 0 18%, rgba(255, 255, 255, 0.58) 28%, rgba(255, 255, 255, 0.11) 36%, transparent 50%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.24), transparent 44%),
    radial-gradient(circle at 84% 50%, rgba(255, 214, 10, 0.15), transparent 30%);
  opacity: 0.66;
  pointer-events: none;
}

.top-nav.home-nav > * {
  position: relative;
  z-index: 1;
}

.brand-lockup,
.top-nav nav,
.hero-actions,
.hero-points,
.store-search,
.download-search,
.workflow-step,
.scene-row,
.trust-row,
.site-footer,
.privacy-panel > div {
  display: flex;
  align-items: center;
}

.brand-lockup {
  gap: 10px;
  font-weight: 1000;
  letter-spacing: 0;
}

.brand-lockup img {
  width: 40px;
  height: 40px;
  border-radius: 12px;
}

.brand-lockup span {
  font-size: 19px;
}

.top-nav nav {
  gap: 4px;
}

.home-nav .home-nav-links {
  justify-self: start;
  gap: 18px;
  padding: 0 0 0 14px;
}

.top-nav nav a {
  padding: 10px 12px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 850;
  transition:
    color 0.2s ease,
    background-color 0.2s ease;
}

.top-nav nav a:hover {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.08);
}

.home-nav .home-nav-links a {
  padding: 11px 0;
  color: rgba(248, 247, 238, 0.72);
  font-size: 13px;
  font-weight: 900;
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.32);
}

.home-nav .home-nav-links a:hover {
  color: #fffdf4;
  background: transparent;
  box-shadow: none;
}

.nav-brand-title {
  grid-column: 2;
  justify-self: center;
  position: relative;
  color: transparent;
  font-family: "YQBrandTitle", "Alimama ShuHeiTi", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: clamp(26px, 2.35vw, 36px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: 0;
  text-decoration: none;
  white-space: nowrap;
  padding: 0.06em 0 0.14em;
  background: linear-gradient(135deg, #ffffff 0%, #fffdf4 40%, #fff4c2 72%, #ffd60a 100%);
  background-clip: text;
  filter:
    drop-shadow(0 1px 0 rgba(0, 0, 0, 0.36))
    drop-shadow(0 0 18px rgba(255, 214, 10, 0.22));
  -webkit-text-fill-color: transparent;
  -webkit-background-clip: text;
}

.nav-cta,
.primary-button,
.ghost-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-weight: 950;
}

.nav-cta {
  gap: 8px;
  min-height: 42px;
  padding: 0 16px;
  color: #080806;
  background: linear-gradient(135deg, var(--yellow), var(--yellow-2));
  box-shadow: 0 12px 36px rgba(255, 212, 0, 0.22);
}

.nav-cta svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.home-nav .app-store-nav {
  justify-self: end;
  min-height: 46px;
  padding: 0 18px 0 20px;
  border: 1px solid rgba(255, 244, 164, 0.74);
  color: #080806;
  background: linear-gradient(135deg, #fff35f, var(--yellow) 52%, var(--yellow-3));
  box-shadow:
    0 14px 34px rgba(255, 185, 0, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.home-nav .app-store-nav span {
  font-size: 14px;
  white-space: nowrap;
}

.home-nav .app-store-nav:hover {
  transform: translateY(-1px);
  box-shadow:
    0 18px 44px rgba(255, 185, 0, 0.34),
    inset 0 1px 0 rgba(255, 255, 255, 0.78);
}

main {
  position: relative;
  z-index: 1;
}

.full-bleed-section {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
}

.section-inner {
  position: relative;
  z-index: 2;
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
}

.hero-section {
  display: grid;
  align-items: center;
  padding: 122px 0 70px;
}

.hero-section::before,
.workflow-section::before,
.features-section::before,
.download-section::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 76% 40%, rgba(255, 212, 0, 0.16), transparent 31%),
    linear-gradient(180deg, rgba(0, 0, 0, 0.18), rgba(0, 0, 0, 0.78));
}

.stadium-lights {
  position: absolute;
  top: 36px;
  right: -46px;
  display: flex;
  gap: 18px;
  rotate: -12deg;
  opacity: 0.85;
}

.stadium-lights i {
  width: 42px;
  height: 13px;
  border-radius: 999px;
  background: #fff3ae;
  box-shadow:
    0 0 22px rgba(255, 212, 0, 0.86),
    0 0 60px rgba(255, 212, 0, 0.32);
}

.court-floor {
  position: absolute;
  left: -10%;
  right: -10%;
  bottom: -6%;
  height: 42%;
  opacity: 0.9;
  transform: perspective(820px) rotateX(62deg);
  transform-origin: bottom center;
  background:
    linear-gradient(90deg, transparent 14%, rgba(255, 212, 0, 0.88) 14.5%, transparent 15%),
    linear-gradient(90deg, transparent 38%, rgba(255, 212, 0, 0.6) 38.4%, transparent 39%),
    linear-gradient(90deg, transparent 68%, rgba(255, 212, 0, 0.72) 68.4%, transparent 69%),
    linear-gradient(0deg, transparent 24%, rgba(255, 212, 0, 0.74) 24.5%, transparent 25%),
    linear-gradient(0deg, transparent 52%, rgba(255, 212, 0, 0.62) 52.5%, transparent 53%),
    linear-gradient(0deg, transparent 78%, rgba(255, 212, 0, 0.84) 78.5%, transparent 79%),
    linear-gradient(180deg, transparent, rgba(255, 212, 0, 0.12));
  filter: drop-shadow(0 0 16px rgba(255, 212, 0, 0.48));
}

.light-trail {
  position: absolute;
  pointer-events: none;
  border: 3px solid transparent;
  border-top-color: rgba(255, 212, 0, 0.96);
  border-left-color: rgba(255, 212, 0, 0.5);
  border-radius: 50%;
  filter:
    drop-shadow(0 0 8px rgba(255, 212, 0, 0.9))
    drop-shadow(0 0 26px rgba(255, 212, 0, 0.55));
}

.light-trail::before,
.light-trail::after {
  content: "";
  position: absolute;
  border-radius: inherit;
}

.light-trail::before {
  inset: 9px;
  border-top: 1px solid rgba(255, 236, 77, 0.72);
}

.light-trail::after {
  inset: -6px;
  border-top: 8px solid rgba(255, 212, 0, 0.1);
  filter: blur(7px);
}

.hero-trail {
  right: -110px;
  bottom: 10%;
  width: 820px;
  height: 310px;
  rotate: -10deg;
  animation: trail-pulse 4.8s ease-in-out infinite;
}

.shuttle-flight {
  position: absolute;
  z-index: 1;
  pointer-events: none;
}

.shuttle-flight img,
.download-shuttle {
  width: 138px;
  filter:
    drop-shadow(0 0 16px rgba(255, 212, 0, 0.72))
    drop-shadow(0 14px 24px rgba(0, 0, 0, 0.45));
}

.shuttle-hero {
  top: 16%;
  right: 9%;
  rotate: -22deg;
  animation: shuttle-float 5s ease-in-out infinite;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(420px, 1.08fr);
  gap: 34px;
  align-items: center;
}

.hero-copy {
  padding-top: 20px;
}

.hero-copy h1,
.section-heading h2,
.feature-copy h2,
.download-copy h2,
.legal-hero h1 {
  margin: 0;
  font-weight: 1000;
  letter-spacing: 0;
}

.hero-copy h1 {
  max-width: 720px;
  font-size: 94px;
  line-height: 0.96;
}

.hero-copy h1 span,
.hero-copy h1 strong {
  display: block;
}

.hero-copy h1 strong,
.section-heading h2 span,
.feature-copy h2 span,
.download-copy h2 span {
  color: var(--yellow);
  text-shadow: 0 0 34px rgba(255, 212, 0, 0.28);
}

.hero-copy h1 strong {
  white-space: nowrap;
}

.feature-copy h2 span,
.download-copy h2 span {
  display: block;
}

.hero-copy p,
.section-heading p,
.feature-copy > p,
.download-copy > p {
  max-width: 680px;
  margin: 22px 0 0;
  color: var(--muted-strong);
  font-size: 21px;
  line-height: 1.72;
  font-weight: 680;
}

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

.store-search,
.download-search {
  position: relative;
  gap: 16px;
  min-height: 72px;
  border: 2px solid rgba(255, 244, 164, 0.62);
  border-radius: 999px;
  color: #090806;
  background: linear-gradient(135deg, #fff35f, var(--yellow) 52%, var(--yellow-3));
  box-shadow:
    0 0 0 1px rgba(255, 212, 0, 0.18),
    0 0 42px rgba(255, 212, 0, 0.32),
    inset 0 1px 0 rgba(255, 255, 255, 0.55);
  transition:
    transform 0.22s ease,
    box-shadow 0.22s ease;
}

.store-search {
  padding: 0 24px 0 14px;
}

.store-search:hover,
.download-search:hover {
  transform: translateY(-3px);
  box-shadow:
    0 0 0 1px rgba(255, 212, 0, 0.26),
    0 0 64px rgba(255, 212, 0, 0.42),
    inset 0 1px 0 rgba(255, 255, 255, 0.65);
}

.store-icon {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 54px;
  height: 54px;
  border-radius: 18px;
  color: var(--yellow);
  background: #080806;
}

.store-icon svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.store-search > span:not(.store-icon) {
  font-size: 22px;
  font-weight: 950;
}

.store-search strong {
  font-size: 25px;
  font-weight: 1000;
}

.search-mark,
.download-search > svg {
  width: 32px;
  height: 32px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.hero-points {
  flex-wrap: wrap;
  gap: 20px;
  margin: 28px 0 0;
  padding: 0;
  color: var(--ink);
  list-style: none;
}

.hero-points li {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--muted-strong);
  font-size: 18px;
  font-weight: 820;
}

.hero-points svg {
  width: 25px;
  height: 25px;
  color: var(--yellow);
  fill: none;
  stroke: currentColor;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.hero-stage {
  position: relative;
  z-index: 2;
  min-height: 620px;
}

.robot-wrap {
  position: absolute;
  z-index: 6;
  right: -3%;
  bottom: 2%;
  width: min(560px, 92%);
  animation: robot-hover 4.2s ease-in-out infinite;
}

.robot-wrap img,
.feature-mascot,
.download-robot {
  filter:
    drop-shadow(0 32px 46px rgba(0, 0, 0, 0.5))
    drop-shadow(0 0 34px rgba(255, 212, 0, 0.28));
}

.clip-preview {
  position: absolute;
  z-index: 5;
  overflow: hidden;
  width: 168px;
  height: 112px;
  border: 1px solid rgba(255, 212, 0, 0.76);
  border-radius: 18px;
  background: #050505;
  box-shadow:
    0 0 22px rgba(255, 212, 0, 0.28),
    0 24px 52px rgba(0, 0, 0, 0.42);
}

.clip-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  opacity: 0.88;
}

.clip-preview span {
  position: absolute;
  left: 10px;
  top: 8px;
  color: var(--yellow);
  font-size: 14px;
  font-weight: 950;
}

.clip-preview b {
  position: absolute;
  right: 10px;
  bottom: 10px;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--yellow);
}

.clip-preview b::before {
  content: "";
  width: 12px;
  height: 7px;
  border-bottom: 3px solid #090806;
  border-left: 3px solid #090806;
  rotate: -45deg;
  translate: 0 -1px;
}

.clip-one {
  top: 28%;
  right: 2%;
  rotate: -3deg;
}

.clip-two {
  top: 35%;
  right: 27%;
  rotate: 4deg;
}

.mini-timeline {
  position: absolute;
  right: 8%;
  bottom: 25%;
  display: flex;
  align-items: flex-end;
  gap: 6px;
  width: 330px;
  height: 58px;
  padding: 0 16px 10px;
  border-bottom: 2px solid rgba(255, 212, 0, 0.72);
}

.mini-timeline i {
  width: 3px;
  height: 20px;
  border-radius: 999px;
  background: var(--yellow);
  box-shadow: 0 0 12px rgba(255, 212, 0, 0.7);
  animation: timeline-wave 1.4s ease-in-out infinite;
}

.mini-timeline i:nth-child(2n) {
  height: 34px;
  animation-delay: -0.4s;
}

.mini-timeline i:nth-child(3n) {
  height: 46px;
  animation-delay: -0.8s;
}

.workflow-section {
  display: grid;
  align-items: center;
  padding: 118px 0 92px;
  background:
    radial-gradient(circle at 72% 38%, rgba(255, 212, 0, 0.12), transparent 31%),
    linear-gradient(180deg, #050505, #080806 48%, #050505);
}

.section-heading {
  max-width: 760px;
}

.section-heading h2,
.feature-copy h2,
.download-copy h2 {
  font-size: 78px;
  line-height: 1.02;
}

.workflow-canvas {
  position: relative;
  min-height: 560px;
  margin-top: 42px;
}

.workflow-trail {
  left: -8%;
  right: -8%;
  bottom: 20%;
  width: 116%;
  height: 250px;
  border-width: 4px;
  rotate: 2deg;
  animation: trail-pulse 4.8s ease-in-out infinite;
}

.film-strip {
  position: absolute;
  left: -24px;
  bottom: 14px;
  display: grid;
  grid-template-columns: repeat(4, 132px);
  gap: 7px;
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  background: rgba(0, 0, 0, 0.68);
  box-shadow: 0 26px 58px rgba(0, 0, 0, 0.42);
}

.film-strip::before,
.film-strip::after {
  content: "";
  position: absolute;
  left: 8px;
  right: 8px;
  height: 9px;
  background: repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.2) 0 10px, transparent 10px 20px);
}

.film-strip::before {
  top: -13px;
}

.film-strip::after {
  bottom: -13px;
}

.film-strip img {
  width: 132px;
  height: 82px;
  border-radius: 10px;
  object-fit: cover;
  object-position: top center;
  filter: saturate(0.94) contrast(1.08);
}

.workflow-steps {
  position: absolute;
  inset: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.workflow-step {
  position: absolute;
  left: var(--step-x);
  top: var(--step-y);
  z-index: 2;
  flex-direction: column;
  align-items: flex-start;
  min-width: 180px;
  translate: -50% -50%;
}

.workflow-step > span {
  color: var(--yellow);
  font-size: 23px;
  font-weight: 1000;
}

.step-icon {
  display: grid;
  place-items: center;
  width: 92px;
  height: 92px;
  margin: 10px 0 16px;
  border: 2px solid rgba(255, 212, 0, 0.82);
  border-radius: 50%;
  color: var(--yellow);
  background:
    radial-gradient(circle, rgba(255, 212, 0, 0.16), transparent 62%),
    rgba(0, 0, 0, 0.76);
  box-shadow:
    0 0 0 8px rgba(255, 212, 0, 0.05),
    0 0 34px rgba(255, 212, 0, 0.24);
  transition:
    transform 0.32s ease,
    box-shadow 0.32s ease,
    background 0.32s ease;
}

.step-icon svg {
  width: 40px;
  height: 40px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.workflow-step h3 {
  margin: 0;
  font-size: 31px;
  line-height: 1.1;
  font-weight: 1000;
}

.workflow-step p {
  margin: 8px 0 0;
  color: var(--muted-strong);
  font-size: 17px;
  line-height: 1.45;
  font-weight: 720;
}

.workflow-step.is-active .step-icon {
  transform: translateY(-6px) scale(1.06);
  background: var(--yellow);
  color: #070705;
  box-shadow:
    0 0 0 10px rgba(255, 212, 0, 0.08),
    0 0 52px rgba(255, 212, 0, 0.44);
}

.analysis-badge {
  position: absolute;
  top: 58px;
  right: 56px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 13px 18px;
  border: 1px solid rgba(255, 212, 0, 0.52);
  border-radius: 999px;
  color: var(--ink);
  background: rgba(0, 0, 0, 0.58);
  box-shadow: 0 0 32px rgba(255, 212, 0, 0.13);
  font-size: 17px;
  font-weight: 800;
}

.analysis-badge span {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--yellow);
  box-shadow: 0 0 18px rgba(255, 212, 0, 0.72);
}

.features-section {
  display: grid;
  align-items: center;
  padding: 112px 0 96px;
  background:
    radial-gradient(circle at 82% 34%, rgba(255, 212, 0, 0.12), transparent 32%),
    linear-gradient(180deg, #050505 0%, #0b0b09 46%, #050505 100%);
}

.feature-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(420px, 1.14fr);
  gap: 64px;
  align-items: center;
}

.feature-list {
  display: grid;
  gap: 20px;
  margin-top: 40px;
}

.feature-list article {
  position: relative;
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr);
  column-gap: 16px;
  padding: 2px 0 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.feature-list span {
  grid-row: span 2;
  color: var(--yellow);
  font-size: 28px;
  font-weight: 1000;
}

.feature-list h3 {
  margin: 0;
  font-size: 28px;
  line-height: 1.18;
  font-weight: 1000;
}

.feature-list p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.52;
  font-weight: 680;
}

.scene-row {
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.scene-row a,
.trust-row li {
  border: 1px solid rgba(255, 212, 0, 0.48);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.44);
  color: var(--ink);
  box-shadow: 0 0 22px rgba(255, 212, 0, 0.1);
}

.scene-row a {
  padding: 12px 18px;
  font-size: 17px;
  font-weight: 900;
}

.phone-showcase {
  position: relative;
  min-height: 680px;
}

.phone-shell {
  position: absolute;
  right: 0;
  top: 0;
  overflow: hidden;
  width: min(392px, 70%);
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 54px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.18), transparent 18%),
    #070807;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.06),
    0 34px 90px rgba(0, 0, 0, 0.62),
    0 0 58px rgba(255, 212, 0, 0.18);
  rotate: 5deg;
}

.phone-shell img {
  width: 100%;
  aspect-ratio: 828 / 1800;
  border-radius: 42px;
  object-fit: cover;
}

.feature-trail {
  left: -4%;
  top: 28%;
  width: 590px;
  height: 250px;
  rotate: 13deg;
  animation: trail-pulse 4.8s ease-in-out infinite;
}

.feature-mascot {
  position: absolute;
  left: 3%;
  bottom: 6%;
  width: 255px;
}

.download-section {
  display: grid;
  align-items: center;
  min-height: 92vh;
  padding: 110px 0 78px;
  background:
    radial-gradient(circle at 80% 34%, rgba(255, 212, 0, 0.14), transparent 30%),
    linear-gradient(180deg, #050505, #0a0906 54%, #050505);
}

.download-grid {
  display: grid;
  grid-template-columns: minmax(620px, 0.98fr) minmax(360px, 1.02fr);
  gap: 28px;
  align-items: center;
}

.download-search {
  width: 100%;
  min-height: 96px;
  padding: 0 24px 0 20px;
}

.download-actions {
  display: grid;
  gap: 14px;
  width: min(100%, 720px);
  margin-top: 38px;
}

.download-search strong {
  flex: 1;
  font-size: 29px;
  line-height: 1.18;
  font-weight: 1000;
  white-space: nowrap;
}

.android-download {
  color: var(--ink);
  border-color: rgba(255, 212, 0, 0.46);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 212, 0, 0.08) 54%, rgba(255, 255, 255, 0.045)),
    rgba(255, 255, 255, 0.035);
  box-shadow:
    0 0 0 1px rgba(255, 212, 0, 0.12),
    0 0 34px rgba(255, 212, 0, 0.16),
    inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.android-download .store-icon {
  color: #080806;
  background: var(--yellow);
}

.trust-row {
  flex-wrap: wrap;
  gap: 18px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
}

.trust-row li {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 56px;
  padding: 0 20px;
  font-size: 17px;
  font-weight: 900;
}

.trust-row svg {
  width: 26px;
  height: 26px;
  color: var(--yellow);
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.download-visual {
  position: relative;
  z-index: 2;
  min-height: 620px;
}

.download-robot {
  position: absolute;
  z-index: 4;
  right: -3%;
  bottom: 2%;
  width: min(520px, 96%);
  animation: robot-hover 4.8s ease-in-out infinite;
}

.download-shuttle {
  position: absolute;
  z-index: 5;
  top: 7%;
  left: 2%;
  rotate: -24deg;
  animation: shuttle-float 4.8s ease-in-out infinite;
}

.download-trail {
  z-index: 1;
  right: -16%;
  bottom: 17%;
  width: 650px;
  height: 260px;
  rotate: -5deg;
  animation: trail-pulse 4.8s ease-in-out infinite;
}

.community-section {
  position: relative;
  overflow: hidden;
  padding: 132px 0 148px;
  background:
    radial-gradient(circle at 82% 44%, rgba(255, 212, 0, 0.12), transparent 26%),
    linear-gradient(180deg, #070806 0%, #020202 100%);
}

.community-section::after {
  content: "";
  position: absolute;
  right: -10%;
  bottom: -38%;
  width: 620px;
  height: 620px;
  border: 1px solid rgba(255, 212, 0, 0.16);
  border-radius: 50%;
  pointer-events: none;
}

.community-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  align-items: center;
  gap: clamp(48px, 9vw, 140px);
}

.community-kicker,
.dialog-kicker {
  margin: 0 0 16px;
  color: var(--yellow);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.community-copy h2 {
  margin: 0;
  font-family: "YQBrandTitle", inherit;
  font-size: clamp(56px, 7vw, 96px);
  line-height: 0.98;
  letter-spacing: 0;
}

.community-copy h2 span {
  color: var(--yellow);
}

.community-copy > p:last-child {
  max-width: 360px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}

.community-links {
  display: grid;
  gap: 16px;
}

.community-card {
  scroll-margin-top: 104px;
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) 24px;
  align-items: center;
  gap: 18px;
  width: 100%;
  min-height: 104px;
  padding: 18px 24px 18px 18px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.045);
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.community-card:hover,
.community-card:focus-visible {
  border-color: var(--yellow);
  background: rgba(255, 212, 0, 0.09);
  outline: none;
  transform: translateX(6px);
}

.community-card > span:nth-child(2) {
  display: grid;
  gap: 5px;
}

.community-card strong {
  font-size: 22px;
  font-weight: 900;
}

.community-card small {
  color: var(--muted);
  font-size: 15px;
  font-weight: 700;
}

.community-card > svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.community-icon {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border-radius: 20px;
  font-family: ui-rounded, "SF Pro Rounded", sans-serif;
  font-size: 35px;
  font-weight: 1000;
}

.community-icon-qq {
  color: #101010;
  background: linear-gradient(145deg, #62cfff, #6d8cff);
}

.community-icon-wechat {
  color: #101010;
  background: var(--yellow);
}

.community-icon-wechat svg {
  width: 34px;
  height: 34px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
}

.community-dialog {
  width: min(520px, calc(100% - 32px));
  max-height: min(92vh, 860px);
  padding: 0;
  border: 1px solid rgba(255, 212, 0, 0.48);
  border-radius: 28px;
  background: #f4f4f1;
  color: #131313;
  box-shadow: 0 28px 100px rgba(0, 0, 0, 0.62);
}

.community-dialog::backdrop {
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
}

.community-dialog-inner {
  position: relative;
  display: grid;
  justify-items: center;
  gap: 12px;
  padding: 34px 26px 26px;
  overflow: auto;
}

.dialog-close {
  position: absolute;
  top: 14px;
  right: 14px;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.06);
  color: #131313;
  cursor: pointer;
}

.dialog-close:hover,
.dialog-close:focus-visible {
  background: var(--yellow);
  outline: none;
}

.dialog-close svg {
  width: 19px;
  height: 19px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-width: 2;
}

.dialog-kicker {
  margin: 0;
  color: #7f7200;
  font-size: 13px;
}

.community-dialog h2 {
  margin: 0;
  font-family: "YQBrandTitle", inherit;
  font-size: 30px;
  letter-spacing: 0;
}

.community-dialog img {
  width: min(100%, 420px);
  height: auto;
  max-height: 68vh;
  object-fit: contain;
  border-radius: 14px;
}

.community-dialog p:last-child {
  margin: 0;
  color: rgba(19, 19, 19, 0.56);
  font-size: 14px;
  font-weight: 700;
}

.site-footer {
  position: relative;
  z-index: 2;
  justify-content: space-between;
  gap: 24px;
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
  padding: 30px 0 44px;
  color: var(--muted);
  font-weight: 760;
}

.footer-legal {
  display: grid;
  gap: 8px;
  text-align: right;
}

.footer-legal p {
  margin: 0;
}

.site-footer a {
  color: var(--ink);
}

.language-switcher {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
}

.language-switcher button {
  min-height: 34px;
  padding: 0 12px;
  border: 0;
  border-radius: 999px;
  color: var(--muted);
  background: transparent;
  font: inherit;
  font-size: 13px;
  font-weight: 950;
  cursor: pointer;
  transition:
    color 0.2s ease,
    background-color 0.2s ease;
}

.language-switcher button:hover {
  color: var(--ink);
}

.language-switcher button.active {
  color: #080806;
  background: linear-gradient(135deg, var(--yellow), var(--yellow-2));
}

.legal-shell {
  min-height: 100vh;
}

.legal-main {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
  padding: 112px 0 40px;
}

.mini-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--yellow);
  font-size: 13px;
  font-weight: 950;
  letter-spacing: 0;
  text-transform: uppercase;
}

.legal-hero {
  max-width: 880px;
  padding: 54px 0 36px;
}

.legal-hero h1 {
  margin: 14px 0 18px;
  font-size: 66px;
  line-height: 1;
}

.legal-hero p:not(.mini-label) {
  margin: 0;
  color: var(--muted-strong);
  font-size: 20px;
  line-height: 1.8;
  font-weight: 650;
}

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

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

.legal-stack {
  max-width: 940px;
}

.legal-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(18, 18, 14, 0.78);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 24px 70px rgba(0, 0, 0, 0.26);
  backdrop-filter: blur(18px) saturate(1.2);
}

.legal-card h2 {
  margin: 0 0 14px;
  color: var(--ink);
  font-size: 30px;
  line-height: 1.18;
  font-weight: 1000;
}

.legal-card p,
.legal-card li {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.78;
  font-weight: 650;
}

.legal-card p {
  margin: 0;
}

.legal-card p + p {
  margin-top: 12px;
}

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

.legal-card p + ul {
  margin-top: 12px;
}

.legal-card li {
  position: relative;
  padding-left: 20px;
}

.legal-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--yellow);
}

.legal-card a {
  color: var(--yellow);
  font-weight: 900;
}

.legal-note {
  color: var(--muted-strong) !important;
}

.legal-english {
  max-width: 940px;
  margin-top: 18px;
}

.privacy-panel {
  display: grid;
  gap: 14px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(18, 18, 14, 0.78);
}

.privacy-panel > div {
  justify-content: space-between;
  gap: 16px;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.055);
}

[data-active-lang="zh"] [data-lang="en"],
[data-active-lang="en"] [data-lang="zh"] {
  display: none !important;
}

.js .reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.72s ease,
    transform 0.72s ease;
}

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

.js .hero-section .reveal {
  opacity: 1;
  transform: none;
}

.no-js .reveal {
  opacity: 1;
  transform: none;
}

@keyframes trail-pulse {
  0%,
  100% {
    opacity: 0.72;
    filter:
      drop-shadow(0 0 8px rgba(255, 212, 0, 0.82))
      drop-shadow(0 0 24px rgba(255, 212, 0, 0.42));
  }
  50% {
    opacity: 1;
    filter:
      drop-shadow(0 0 12px rgba(255, 212, 0, 0.96))
      drop-shadow(0 0 38px rgba(255, 212, 0, 0.58));
  }
}

@keyframes robot-hover {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-14px);
  }
}

@keyframes shuttle-float {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(18px, -16px, 0);
  }
}

@keyframes timeline-wave {
  0%,
  100% {
    transform: scaleY(0.72);
    opacity: 0.66;
  }
  50% {
    transform: scaleY(1.08);
    opacity: 1;
  }
}

@keyframes rotate-court {
  to {
    rotate: 360deg;
  }
}

@media (max-width: 1080px) {
  .top-nav nav {
    display: none;
  }

  .top-nav.home-nav {
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  }

  .hero-grid,
  .feature-grid,
  .download-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy h1,
  .section-heading h2,
  .feature-copy h2,
  .download-copy h2 {
    font-size: 72px;
  }

  .hero-stage,
  .phone-showcase,
  .download-visual {
    min-height: 570px;
  }

  .robot-wrap {
    right: 7%;
    width: min(520px, 82%);
  }

  .clip-one {
    right: 12%;
  }

  .clip-two {
    right: 42%;
  }

  .workflow-canvas {
    min-height: 760px;
  }

  .workflow-steps {
    position: relative;
    display: grid;
    gap: 18px;
    padding-top: 230px;
  }

  .workflow-step {
    position: relative;
    left: auto;
    top: auto;
    display: grid;
    grid-template-columns: 66px 84px minmax(0, 1fr);
    column-gap: 16px;
    align-items: center;
    min-width: 0;
    padding: 18px 0;
    translate: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .workflow-step > span,
  .step-icon,
  .workflow-step h3,
  .workflow-step p {
    margin: 0;
  }

  .step-icon {
    width: 78px;
    height: 78px;
  }

  .workflow-step p {
    grid-column: 3;
  }

  .analysis-badge {
    top: 48px;
    right: auto;
    left: 0;
  }

  .film-strip {
    top: 128px;
    bottom: auto;
    left: 0;
  }

  .workflow-trail {
    top: 180px;
    bottom: auto;
  }

  .phone-shell {
    left: 50%;
    right: auto;
    width: min(392px, 78%);
    translate: -50% 0;
  }

  .feature-mascot {
    left: 4%;
  }
}

@media (max-width: 720px) {
  .section-inner,
  .legal-main,
  .site-footer,
  .top-nav {
    width: min(calc(100% - 28px), var(--max));
  }

  .top-nav {
    top: 12px;
    min-height: 58px;
    padding: 9px 10px;
  }

  .top-nav.home-nav {
    grid-template-columns: 44px minmax(0, 1fr) 44px;
    column-gap: 8px;
    min-height: 60px;
    padding: 8px 10px;
  }

  .nav-brand-title {
    grid-column: 2;
    font-size: 23px;
  }

  .brand-lockup img {
    width: 36px;
    height: 36px;
  }

  .brand-lockup span {
    font-size: 17px;
  }

  .nav-cta {
    min-height: 38px;
    padding: 0 13px;
    font-size: 13px;
  }

  .nav-cta svg {
    display: none;
  }

  .home-nav .app-store-nav {
    width: 42px;
    min-height: 42px;
    padding: 0;
    border-radius: 50%;
  }

  .home-nav .app-store-nav span {
    display: none;
  }

  .home-nav .app-store-nav svg {
    display: block;
    width: 18px;
    height: 18px;
  }

  .hero-section,
  .workflow-section,
  .features-section,
  .download-section {
    padding-top: 108px;
    padding-bottom: 58px;
  }

  .hero-copy h1,
  .section-heading h2,
  .feature-copy h2,
  .download-copy h2 {
    font-size: 52px;
  }

  .hero-copy h1 strong {
    white-space: normal;
  }

  .hero-copy p,
  .section-heading p,
  .feature-copy > p,
  .download-copy > p {
    font-size: 18px;
    line-height: 1.65;
  }

  .hero-stage,
  .phone-showcase {
    min-height: 470px;
  }

  .download-visual {
    min-height: 520px;
  }

  .robot-wrap {
    right: -2%;
    bottom: 13%;
    width: min(390px, 96vw);
    max-width: none;
  }

  .shuttle-flight img,
  .download-shuttle {
    width: 96px;
  }

  .shuttle-hero {
    display: none;
  }

  .clip-preview {
    width: 132px;
    height: 88px;
  }

  .clip-one {
    top: 18%;
    right: 2%;
  }

  .clip-two {
    top: 24%;
    right: 38%;
  }

  .mini-timeline {
    right: 4%;
    bottom: 5%;
    width: 260px;
  }

  .store-search {
    width: 100%;
    min-height: 68px;
    gap: 11px;
    padding: 0 14px 0 10px;
  }

  .store-icon {
    width: 48px;
    height: 48px;
    border-radius: 16px;
  }

  .store-search > span:not(.store-icon),
  .store-search strong {
    font-size: 18px;
  }

  .search-mark {
    width: 26px;
    height: 26px;
  }

  .hero-points {
    display: grid;
    gap: 14px;
  }

  .film-strip {
    grid-template-columns: repeat(4, 96px);
    overflow: hidden;
    max-width: 100%;
  }

  .film-strip img {
    width: 96px;
    height: 68px;
  }

  .analysis-badge {
    max-width: calc(100vw - 42px);
    font-size: 15px;
  }

  .workflow-step {
    grid-template-columns: 48px 70px minmax(0, 1fr);
    column-gap: 13px;
  }

  .workflow-step > span {
    font-size: 18px;
  }

  .step-icon {
    width: 62px;
    height: 62px;
  }

  .step-icon svg {
    width: 30px;
    height: 30px;
  }

  .workflow-step h3 {
    font-size: 24px;
  }

  .workflow-step p {
    font-size: 15px;
  }

  .feature-list article {
    grid-template-columns: 54px minmax(0, 1fr);
  }

  .feature-list h3 {
    font-size: 24px;
  }

  .phone-shell {
    width: min(360px, 86%);
    border-radius: 46px;
  }

  .phone-shell img {
    border-radius: 36px;
  }

  .feature-trail {
    left: -26%;
    top: 32%;
    width: 520px;
  }

  .feature-mascot {
    width: 190px;
    bottom: 0;
  }

  .download-actions {
    gap: 12px;
    margin-top: 30px;
  }

  .community-section {
    padding: 92px 0 104px;
  }

  .community-grid {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .community-copy h2 {
    font-size: 58px;
  }

  .community-links {
    gap: 12px;
  }

  .community-card {
    grid-template-columns: 56px minmax(0, 1fr) 20px;
    gap: 14px;
    min-height: 88px;
    padding: 14px 16px 14px 12px;
    border-radius: 20px;
  }

  .community-icon {
    width: 56px;
    height: 56px;
    border-radius: 17px;
  }

  .community-icon-wechat svg {
    width: 30px;
    height: 30px;
  }

  .community-card strong {
    font-size: 19px;
  }

  .community-card small {
    font-size: 13px;
  }

  .community-dialog {
    width: calc(100% - 22px);
    border-radius: 22px;
  }

  .community-dialog-inner {
    padding: 30px 14px 18px;
  }

  .community-dialog h2 {
    font-size: 25px;
  }

  .download-search {
    min-height: 78px;
    padding: 0 14px 0 10px;
  }

  .download-search strong {
    font-size: 21px;
    white-space: normal;
  }

  .trust-row {
    display: grid;
  }

  .download-robot {
    right: -5%;
    bottom: 10%;
    width: min(390px, 98vw);
    max-width: none;
  }

  .download-shuttle {
    top: 5%;
    left: 4%;
    width: 112px;
  }

  .download-trail {
    right: -52%;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .footer-legal {
    text-align: left;
  }

  .legal-main {
    padding-top: 92px;
  }

  .legal-hero h1 {
    font-size: 46px;
  }

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

@media (max-width: 420px) {
  .hero-copy h1,
  .section-heading h2,
  .feature-copy h2,
  .download-copy h2 {
    font-size: 44px;
  }

  .store-search > span:not(.store-icon) {
    display: none;
  }

  .store-search strong {
    flex: 1;
  }

  .workflow-canvas {
    min-height: 720px;
  }

  .feature-mascot {
    width: 165px;
  }

  .robot-wrap {
    right: -5%;
    bottom: 15%;
    width: min(360px, 100vw);
  }

  .download-search strong {
    font-size: 18px;
  }

  .download-search > svg {
    display: none;
  }

  .download-robot {
    right: -8%;
    bottom: 13%;
    width: min(360px, 100vw);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}