@charset "UTF-8";
:root {
  --bg:#080e1b;
  --panel:#0f192a;
  --text:#f2f4fa;
  --muted:#94a1b6;
  --cyan:#71ead8;
  --border:rgba(170,194,226,.14);
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --radius:12px
}
* {
  box-sizing:border-box
}
html {
  scroll-behavior:smooth;
  scroll-padding-top:100px
}
body {
  margin:0;
  color:var(--text);
  background:var(--bg);
  font-family:var(--font);
  font-size:15px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased
}
body.modal-open {
  overflow:hidden
}
button,a,input {
   -webkit-tap-highlight-color:transparent
}
button {
  font:inherit;
  color:inherit;
  cursor:pointer
}
a {
  color:inherit;
  text-decoration:none
}
button {
  border:0
}
img {
  max-width:100%;
  display:block
}
h1,h2,h3,p {
  margin:0
}
h1,h2,h3 {
  line-height:1.25
}
button:disabled {
  opacity:.35;
  cursor:default
}
button:focus-visible,a:focus-visible,summary:focus-visible,[tabindex]:focus-visible {
  outline:2px solid var(--cyan);
  outline-offset:5px
}
::selection {
  background:var(--cyan);
  color:var(--bg)
}
.container {
  width:min(1200px,calc(100% - 96px));
  margin-inline:auto
}
.section {
  padding:108px 0
}
.accent {
  color:var(--cyan)
}
.muted {
  color:var(--muted)
}
.mobile-only {
  display:none
}
.svg-defs {
  position:absolute;
  width:0;
  height:0;
  overflow:hidden
}
.icon {
  width:21px;
  height:21px;
  flex-shrink:0;
  fill:none;
  stroke:currentColor;
  stroke-width:1.6;
  stroke-linecap:round;
  stroke-linejoin:round
}
.skip-link {
  position:fixed;
  top:-60px;
  left:12px;
  z-index:1000;
  padding:8px 18px;
  background:var(--cyan);
  color:var(--bg)
}
.skip-link:focus {
  top:8px
}
.site-header {
  height:88px;
  position:sticky;
  top:0;
  z-index:30;
  border-bottom:1px solid var(--border);
  background:rgba(8,14,27,.93);
  backdrop-filter:blur(20px)
}
.nav-shell {
  width:min(1344px,calc(100% - 96px));
  height:100%;
  margin:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:25px
}
.brand {
  display:flex;
  align-items:center;
  gap:11px
}
.brand img {
  object-fit:contain;
  flex-shrink:0
}
.brand-text {
  font-size:22px;
  font-weight:750;
  line-height:1.1;
  letter-spacing:2px
}
.brand-ai {
  color:var(--cyan);
  font-family:Arial,sans-serif;
  letter-spacing:0;
  margin-left:5px
}
.brand-text small {
  display:block;
  color:#9ba8bb;
  letter-spacing:3px;
  font-size:9px;
  font-weight:400;
  margin-top:6px
}
.desktop-nav {
  display:flex;
  gap:34px;
  font-size:13px;
  color:#bdc7d5
}
.desktop-nav a {
  transition:color .2s
}
.desktop-nav a:hover {
  color:var(--cyan)
}
.nav-actions {
  display:flex;
  align-items:center;
  gap:16px
}
.button {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:13px;
  padding:16px 25px;
  line-height:1.3;
  font-weight:650;
  font-size:14px;
  border-radius:7px;
  transition:background .2s,transform .2s,color .2s;
  min-height:50px
}
.button:hover {
  transform:translateY(-2px)
}
.button-primary {
  background:var(--cyan);
  color:#092323;
  box-shadow:0 0 25px rgba(113,234,216,.09)
}
.button-primary:hover {
  background:#a1f7e9
}
.button-small {
  padding:12px 20px;
  min-height:42px;
  font-size:13px
}
.button-outline {
  border:1px solid rgba(113,234,216,.5);
  background:transparent;
  color:var(--cyan)
}
.button-outline:hover {
  background:rgba(113,234,216,.1)
}
.menu-toggle {
  display:none;
  width:36px;
  height:40px;
  background:none;
  padding:8px
}
.menu-toggle span {
  display:block;
  height:1px;
  width:20px;
  background:var(--text);
  margin:7px 0
}
.mobile-nav {
  background:#0b1425;
  border-bottom:1px solid var(--border);
  padding:15px 24px;
  flex-direction:column;
  gap:0
}
.mobile-nav:not([hidden]) {
  display:flex
}
.mobile-nav a {
  padding:12px
}
.hero {
  position:relative;
  min-height:690px;
  overflow:hidden;
  background:#09152b
}
.hero-image {
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center
}
.hero-shade {
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(6,13,28,.77) 0%,rgba(6,13,28,.34) 43%,transparent 70%),linear-gradient(0deg,var(--bg),transparent 27%)
}
.hero-content {
  position:relative;
  z-index:1;
  padding-top:105px;
  padding-bottom:105px
}
.hero-eyebrow {
  display:flex;
  align-items:center;
  gap:10px;
  font-size:11px;
  letter-spacing:2px;
  color:#cfdee9
}
.live-dot {
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 10px var(--cyan)
}
.eyebrow-divider {
  height:10px;
  width:1px;
  background:#8597b1;
  margin:0 2px
}
.hero h1 {
  font-size:clamp(44px,4.8vw,68px);
  font-weight:800;
  letter-spacing:-2px;
  line-height:1.18;
  margin-top:27px;
  margin-bottom:26px
}
.hero-lead {
  font-size:17px;
  line-height:1.85;
  color:#d1d8e4
}
.hero-sub {
  font-size:12px;
  line-height:1.85;
  color:#9aa9be;
  margin-top:15px
}
.hero-buttons {
  display:flex;
  gap:28px;
  align-items:center;
  margin-top:30px
}
.hero-secondary {
  display:flex;
  align-items:center;
  gap:9px;
  font-size:13px
}
.hero-secondary .icon {
  width:17px
}
.hero-secondary:hover {
  color:var(--cyan)
}
.hero-format {
  display:flex;
  align-items:center;
  gap:8px;
  color:#9cacbe;
  font-size:10px;
  letter-spacing:.6px;
  margin-top:26px
}
.format-lines {
  width:12px;
  height:9px;
  border-top:1px solid currentColor;
  border-bottom:1px solid currentColor;
  position:relative
}
.format-lines:after {
  content:"";
  width:100%;
  height:1px;
  background:currentColor;
  position:absolute;
  top:3px
}
.hero-bottom {
  position:absolute;
  bottom:28px;
  left:0;
  right:0;
  z-index:2;
  display:flex;
  justify-content:space-between;
  align-items:center;
  color:#7e90a9;
  font-size:10px;
  letter-spacing:1px
}
.hero-bottom a {
  display:flex;
  align-items:center;
  gap:12px;
  color:#a7b7c9
}
.down-line {
  width:1px;
  height:25px;
  background:linear-gradient(var(--cyan),transparent)
}
.hero-film-label {
  position:absolute;
  right:22px;
  top:50%;
  writing-mode:vertical-rl;
  letter-spacing:3px;
  font:9px Arial;
  color:rgba(232,244,255,.6)
}
.kicker {
  display:flex;
  gap:12px;
  align-items:center;
  color:var(--cyan);
  font-size:10px;
  font-weight:600;
  letter-spacing:2px;
  margin-bottom:19px
}
.kicker>span {
  font:11px Arial,sans-serif;
  color:#6a8196;
  border-right:1px solid #314254;
  padding-right:12px
}
.section h2 {
  font-size:37px;
  letter-spacing:-.8px;
  font-weight:720
}
.section-heading {
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:36px;
  margin-bottom:38px
}
.section-aside {
  font-size:12px;
  line-height:1.9;
  color:var(--muted);
  padding-bottom:3px
}
.episodes-section {
  padding-top:80px
}
.episode-grid {
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:25px
}
.episode-card {
  position:relative;
  display:block;
  width:100%;
  aspect-ratio:9/13.9;
  background:#121a2e;
  border-radius:10px;
  overflow:hidden;
  text-align:left;
  border:1px solid rgba(140,161,212,.15);
  padding:0;
  transition:transform .3s,border-color .3s
}
.episode-card>img {
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center 40%;
  transition:transform .6s
}
.episode-card:after {
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(5,13,30,.28) 0%,transparent 35%,rgba(6,12,25,.65) 67%,#070f20 100%)
}
.episode-card:hover {
  transform:translateY(-7px);
  border-color:rgba(113,234,216,.65)
}
.episode-card:hover>img {
  transform:scale(1.035)
}
.episode-top {
  position:absolute;
  top:23px;
  left:24px;
  right:24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  z-index:1
}
.episode-number {
  font:11px Arial;
  letter-spacing:2px
}
.episode-type {
  padding:4px 11px;
  font-size:10px;
  color:#b4ffee;
  background:rgba(11,70,69,.74);
  border:1px solid rgba(113,234,216,.3);
  border-radius:4px
}
.episode-type.purple {
  background:rgba(67,38,113,.74);
  color:#e5d1ff;
  border-color:rgba(181,139,255,.35)
}
.episode-type.gold {
  color:#ffe3a2;
  background:rgba(88,65,20,.74);
  border-color:rgba(255,215,133,.35)
}
.episode-play {
  position:absolute;
  top:36%;
  left:50%;
  transform:translate(-50%,-50%);
  border:1px solid rgba(255,255,255,.55);
  background:rgba(10,24,42,.25);
  backdrop-filter:blur(8px);
  width:54px;
  height:54px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  z-index:1;
  opacity:0;
  transition:opacity .25s
}
.episode-card:hover .episode-play,.episode-card:focus-visible .episode-play {
  opacity:1
}
.episode-play .icon {
  margin-left:2px
}
.episode-content {
  position:absolute;
  left:27px;
  right:27px;
  bottom:24px;
  z-index:2
}
.episode-note {
  display:block;
  color:#9fb2c9;
  font-size:10px;
  letter-spacing:.5px;
  margin-bottom:13px
}
.episode-content strong {
  display:block;
  font-size:33px;
  font-weight:700;
  line-height:1.25;
  letter-spacing:1px
}
.episode-description {
  display:block;
  color:#b6c1d1;
  font-size:11px;
  margin-top:14px
}
.episode-bottom {
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:10px;
  color:#768ba6;
  border-top:1px solid rgba(141,165,205,.22);
  padding-top:18px;
  margin-top:24px
}
.episode-bottom>span:last-child {
  color:var(--cyan);
  display:flex;
  gap:5px;
  align-items:center
}
.episode-bottom .icon {
  width:15px;
  height:15px
}
.episode-footnote {
  display:flex;
  gap:8px;
  align-items:center;
  margin-top:25px;
  color:#79899e;
  font-size:10px
}
.mini-dot {
  width:4px;
  height:4px;
  background:#75879b;
  border-radius:50%;
  flex-shrink:0
}
.episode-footnote>.text-button {
  margin-left:auto;
  flex-shrink:0
}
.text-button {
  padding:0;
  display:inline-flex;
  align-items:center;
  gap:7px;
  background:none;
  font-size:11px;
  color:#b7c8d9;
  line-height:1.7
}
.text-button:hover {
  color:var(--cyan)
}
.text-button .icon {
  width:15px;
  height:15px
}
.about-section {
  position:relative;
  background:linear-gradient(130deg,#0d1729,#0b1322 55%,#080f1e);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border)
}
.about-layout {
  display:grid;
  grid-template-columns:1fr 1.08fr;
  gap:105px
}
.about-intro h2 {
  font-size:45px;
  line-height:1.3;
  margin-bottom:26px
}
.about-intro>p:not(.kicker) {
  font-size:13px;
  line-height:2;
  max-width:355px;
  color:#b8c3d3
}
.about-intro>p.muted {
  margin-top:16px;
  color:#8292ab
}
.inline-link {
  display:inline-flex;
  align-items:center;
  gap:11px;
  font-size:12px;
  color:var(--cyan);
  margin-top:28px
}
.inline-link:hover {
  gap:16px
}
.inline-link .icon {
  width:17px
}
.about-caption {
  display:flex;
  align-items:center;
  gap:20px;
  margin-top:45px;
  color:#c4d1df;
  font-size:12px
}
.about-caption small {
  font-size:10px;
  color:#70849e;
  letter-spacing:2px
}
.bracket {
  font-family:Arial;
  font-size:48px;
  font-weight:200;
  color:#315e69;
  line-height:1
}
.capability-list {
  padding-top:5px
}
.capability {
  display:flex;
  align-items:flex-start;
  gap:20px;
  border-bottom:1px solid var(--border);
  padding:0 0 24px;
  margin-bottom:26px
}
.capability:last-child {
  margin-bottom:0;
  border:0;
  padding-bottom:0
}
.capability-icon {
  width:44px;
  height:44px;
  border-radius:9px;
  background:#112d34;
  color:#79e4d3;
  display:flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
  margin-top:5px
}
.capability-icon.violet {
  color:#b4a0ff;
  background:#252044
}
.capability-icon.blue {
  color:#86bdf7;
  background:#182a43
}
.capability-icon.amber {
  color:#e9c37e;
  background:#332b20
}
.capability-label {
  color:#768ca7;
  font:9px Arial;
  letter-spacing:1.7px;
  margin-bottom:7px
}
.capability h3 {
  font-size:17px;
  letter-spacing:.2px;
  margin-bottom:9px
}
.capability p:not(.capability-label) {
  font-size:11px;
  color:#8fa0b7;
  line-height:1.85;
  max-width:330px
}
.capability-index {
  margin-left:auto;
  color:#33465f;
  font:11px Arial;
  margin-top:6px
}
.chat-icon {
  width:21px;
  height:16px;
  border:1.5px solid currentColor;
  border-radius:4px;
  position:relative
}
.chat-icon:after {
  content:"";
  width:6px;
  height:6px;
  position:absolute;
  left:3px;
  bottom:-5px;
  background:#182a43;
  border-bottom:1.5px solid currentColor;
  transform:skewY(-40deg)
}
.community-icon {
  width:23px;
  height:15px;
  border:1.5px solid currentColor;
  border-bottom:0;
  border-radius:10px 10px 0 0;
  position:relative;
  margin-top:9px
}
.community-icon:after {
  content:"";
  height:8px;
  width:8px;
  border:1.5px solid currentColor;
  border-radius:50%;
  position:absolute;
  left:6px;
  top:-11px
}
.scenario-section {
  padding-top:100px
}
.scenario-layout {
  display:grid;
  grid-template-columns:340px 1fr;
  gap:46px
}
.scenario-tabs {
  display:flex;
  flex-direction:column;
  gap:12px
}
.scenario-tab {
  width:100%;
  padding:22px 21px;
  background:transparent;
  border:1px solid var(--border);
  border-radius:8px;
  display:flex;
  align-items:center;
  gap:18px;
  text-align:left;
  color:#6d8099;
  transition:all .2s
}
.scenario-tab:hover {
  background:#101e2d
}
.scenario-tab.active {
  background:#10262c;
  border-color:rgba(113,234,216,.38);
  color:var(--cyan)
}
.tab-number {
  font:11px Arial;
  letter-spacing:1px;
  align-self:flex-start;
  margin-top:3px
}
.scenario-tab strong {
  display:block;
  color:#dae0ea;
  font-size:14px;
  font-weight:600
}
.scenario-tab small {
  display:block;
  color:#71889f;
  font-size:10px;
  margin-top:6px
}
.scenario-tab .icon {
  width:17px;
  margin-left:auto;
  opacity:0
}
.scenario-tab.active .icon {
  opacity:1
}
.scenario-panel {
  padding:29px 33px;
  border:1px solid var(--border);
  border-radius:12px;
  background:linear-gradient(150deg,#111d30,#0e1727);
  min-width:0
}
.demo-header {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:15px;
  padding-bottom:23px;
  border-bottom:1px solid var(--border);
  font-size:10px;
  color:#8495ae
}
.demo-mark {
  display:flex;
  align-items:center;
  gap:8px;
  color:#dae2ef;
  font-size:11px
}
.demo-mark .icon {
  width:16px;
  color:var(--cyan)
}
.demo-badge {
  font-size:9px;
  color:#71869f
}
.user-prompt {
  margin:25px 0 23px;
  background:#1b2c40;
  padding:18px 20px;
  border-radius:9px 9px 2px 9px;
  margin-left:34px
}
.speaker-label {
  display:block;
  color:#7e97b0;
  font-size:9px;
  margin-bottom:8px
}
.user-prompt p {
  font-size:13px;
  line-height:1.9;
  color:#d9e1eb
}
.demo-response {
  display:flex;
  gap:16px;
  align-items:flex-start
}
.response-dot {
  width:23px;
  height:23px;
  border:1px solid #417b75;
  border-radius:50%;
  background:radial-gradient(circle,var(--cyan) 0 3px,transparent 4px);
  flex-shrink:0;
  margin-top:2px
}
.demo-response strong {
  font-size:13px;
  color:var(--cyan);
  font-weight:500
}
.demo-response p {
  font-size:11px;
  color:#8f9fb4;
  line-height:1.9;
  margin-top:10px
}
.result-tags {
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:16px
}
.result-tags span {
  padding:4px 10px;
  border:1px solid #29454c;
  border-radius:4px;
  font-size:9px;
  color:#95c6c7;
  background:#102731
}
.demo-footer {
  border-top:1px solid var(--border);
  margin-top:27px;
  padding-top:19px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:15px
}
.demo-footer>span {
  font-size:9px;
  color:#71869e
}
.join-section {
  padding:95px 0;
  background:radial-gradient(ellipse at 8% 40%,rgba(23,92,93,.27),transparent 58%),#0b1825;
  border-top:1px solid #20353f;
  border-bottom:1px solid #20353f;
  overflow:hidden
}
.join-layout {
  display:grid;
  grid-template-columns:1.12fr 1fr;
  gap:80px;
  align-items:center
}
.join-message h2 {
  font-size:38px;
  line-height:1.35
}
.join-message>p:not(.kicker) {
  font-size:13px;
  color:#99b4bc;
  line-height:1.9;
  margin:21px 0 28px
}
.join-message .button-primary {
  font-size:13px
}
.store-link {
  display:flex;
  margin-top:18px;
  color:#8fb0b9;
  font-size:10px
}
.join-note {
  display:block;
  margin-top:22px;
  font-size:9px;
  color:#627f8c
}
.join-steps {
  margin:0;
  padding:0;
  list-style:none
}
.join-steps li {
  display:flex;
  gap:24px;
  padding:25px 0;
  border-bottom:1px solid rgba(141,179,191,.18)
}
.join-steps li:first-child {
  padding-top:0
}
.join-steps li:last-child {
  border:0;
  padding-bottom:0
}
.step-number {
  font:28px Arial;
  letter-spacing:-1px;
  color:#568887;
  line-height:1.2
}
.join-steps h3 {
  font-size:15px;
  font-weight:550;
  margin-bottom:11px
}
.join-steps p {
  font-size:11px;
  line-height:1.9;
  color:#8aa3b1;
  max-width:360px
}
.faq-section {
  padding:95px 0
}
.faq-layout {
  display:grid;
  grid-template-columns:1fr 1.6fr;
  gap:90px
}
.faq-layout h2 {
  font-size:36px;
  line-height:1.35
}
.faq-list details {
  border-bottom:1px solid var(--border)
}
.faq-list details:first-child {
  border-top:1px solid var(--border)
}
summary {
  list-style:none;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:25px;
  font-size:13px;
  padding:21px 0;
  cursor:pointer;
  color:#c6d1df
}
summary::-webkit-details-marker {
  display:none
}
.faq-plus {
  position:relative;
  width:13px;
  height:13px;
  flex-shrink:0
}
.faq-plus:before,.faq-plus:after {
  content:"";
  position:absolute;
  background:#768ca5;
  top:6px;
  left:0;
  width:13px;
  height:1px
}
.faq-plus:after {
  transform:rotate(90deg);
  transition:transform .2s
}
details[open] .faq-plus:after {
  transform:rotate(0)
}
details[open] summary {
  color:var(--cyan)
}
.faq-list details>p {
  font-size:11px;
  line-height:1.95;
  color:#8c9eb5;
  padding:0 36px 22px 0
}
.closing-strip {
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
  background:#0b1423;
  padding:30px 0
}
.closing-strip>.container {
  display:flex;
  gap:35px;
  align-items:center
}
.closing-word {
  font-size:33px;
  font-weight:750;
  letter-spacing:-1px
}
.closing-dot {
  color:var(--cyan);
  font-family:Arial
}
.closing-strip p {
  font-size:12px;
  letter-spacing:2px;
  color:#7f94aa
}
.closing-strip a {
  margin-left:auto;
  color:var(--cyan);
  display:flex;
  align-items:center;
  justify-content:center;
  width:43px;
  height:43px;
  border:1px solid #2a514f;
  border-radius:50%;
  transition:background .2s
}
.closing-strip a:hover {
  background:#15342f
}
.site-footer {
  padding:42px 0 23px
}
.footer-top {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:25px
}
.footer-brand {
  font-size:16px;
  font-weight:650;
  color:#c5d1dd
}
.footer-brand span {
  font-size:10px;
  font-weight:400;
  margin-left:15px;
  letter-spacing:2px;
  color:#6a7f98
}
.footer-links {
  display:flex;
  gap:24px;
  align-items:center;
  font-size:10px;
  color:#8fa3ba
}
.footer-links a {
  display:flex;
  align-items:center;
  gap:4px
}
.footer-links .icon {
  width:12px;
  height:12px
}
.footer-links .text-button {
  font-size:10px;
  color:#8fa3ba
}
.footer-links a:hover {
  color:var(--cyan)
}
.footer-bottom {
  display:flex;
  justify-content:space-between;
  gap:20px;
  border-top:1px solid var(--border);
  margin-top:28px;
  padding-top:20px;
  font-size:8px;
  color:#58708a;
  letter-spacing:.3px
}
/* 图文短剧阅读器，不模拟已上线的视频。 */dialog {
  color:var(--text);
  background:#101b2d;
  border:1px solid #2c415b;
  border-radius:15px;
  padding:0;
  max-height:94dvh
}
dialog::backdrop {
  background:rgba(2,7,16,.88);
  backdrop-filter:blur(12px)
}
.theater {
  width:min(970px,calc(100% - 40px));
  overflow:auto
}
.theater-header {
  padding:14px 20px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  border-bottom:1px solid var(--border)
}
.theater-header>span {
  font-size:10px;
  letter-spacing:1px;
  color:#91a4bc
}
.icon-button {
  background:transparent;
  width:30px;
  height:30px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#94a8bf;
  border-radius:5px
}
.icon-button:hover {
  background:#24334b;
  color:white
}
.theater-layout {
  display:grid;
  grid-template-columns:42% 58%;
  min-height:570px
}
.theater-visual {
  position:relative;
  min-height:550px;
  background:#061020;
  overflow:hidden
}
.theater-visual>img {
  width:100%;
  height:100%;
  position:absolute;
  object-fit:cover;
  object-position:center;
  transition:transform 1s
}
.theater-image-shade {
  position:absolute;
  inset:0;
  background:linear-gradient(0deg,rgba(4,12,29,.83),transparent 45%),linear-gradient(180deg,rgba(3,10,24,.4),transparent 20%)
}
.theater-frame-label {
  position:absolute;
  top:25px;
  left:22px;
  color:#e2edf9;
  font:10px Arial;
  letter-spacing:2px
}
.theater-progress {
  position:absolute;
  bottom:42px;
  left:22px;
  right:22px;
  display:flex;
  gap:7px
}
.progress-segment {
  position:relative;
  height:4px;
  flex:1;
  padding:0;
  background:rgba(149,169,201,.32);
  border-radius:3px;
  overflow:hidden
}
.progress-segment>span {
  position:absolute;
  left:0;
  top:0;
  height:100%;
  width:0;
  background:var(--cyan);
  border-radius:3px
}
.progress-segment.completed>span {
  width:100%
}
.theater-format {
  position:absolute;
  bottom:18px;
  left:22px;
  font-size:9px;
  color:#94a8c0;
  letter-spacing:1px
}
.theater-story {
  padding:39px 38px 27px;
  display:flex;
  flex-direction:column
}
.theater-story h2 {
  font-size:29px;
  line-height:1.35;
  letter-spacing:-.5px
}
.theater-story .kicker {
  margin-bottom:14px;
  font-size:9px
}
.scene-setting {
  font-size:11px;
  color:#8ea2ba;
  line-height:1.9;
  margin-top:19px;
  min-height:42px
}
.dialogue-box {
  background:#182b3b;
  border-left:2px solid var(--cyan);
  padding:16px 18px;
  margin-top:22px;
  border-radius:0 6px 6px 0
}
.dialogue-speaker {
  font-size:9px;
  color:var(--cyan);
  letter-spacing:1px
}
.dialogue-box p {
  font-size:14px;
  line-height:1.8;
  margin-top:8px;
  color:#e1ebf0
}
.scene-artifact {
  margin-top:21px;
  display:flex;
  gap:8px;
  flex-wrap:wrap
}
.artifact-chip {
  padding:7px 11px;
  border:1px solid #30445c;
  border-radius:5px;
  font-size:10px;
  color:#b3c8dc;
  background:#122033
}
.scene-caption {
  font-size:10px;
  color:#6e869e;
  line-height:1.8;
  margin-top:20px;
  margin-bottom:28px
}
.theater-controls {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:13px;
  margin-top:auto;
  border-top:1px solid var(--border);
  padding-top:20px
}
.theater-controls .button {
  font-size:11px;
  padding:11px 14px;
  gap:7px
}
.theater-controls .icon {
  width:15px
}
.auto-button {
  font-size:10px;
  background:transparent;
  padding:7px 9px;
  color:#839ab2;
  border:1px solid #34475e;
  border-radius:5px
}
.auto-button[aria-pressed="true"] {
  border-color:#4a877d;
  color:var(--cyan);
  background:#18342e
}
.episode-switcher {
  display:flex;
  justify-content:center;
  gap:22px;
  margin-top:24px
}
.episode-switcher button {
  font-size:9px;
  background:transparent;
  padding:4px 0;
  color:#68839e;
  border-bottom:1px solid transparent
}
.episode-switcher button.active {
  color:var(--cyan);
  border-color:var(--cyan)
}
.small-dialog {
  width:min(450px,calc(100% - 36px));
  padding:36px;
  overflow:auto;
  position:fixed
}
.dialog-close {
  position:absolute;
  right:14px;
  top:14px
}
.small-dialog .kicker {
  font-size:9px
}
.small-dialog h2 {
  font-size:28px;
  line-height:1.4;
  margin-bottom:18px
}
.dialog-description {
  font-size:12px;
  color:#94a8bf;
  line-height:1.9;
  margin-bottom:20px
}
.dialog-description a {
  color:var(--cyan)
}
.store-button {
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:18px 22px;
  background:#1a2b40;
  border:1px solid #354961;
  border-radius:8px;
  margin-top:12px
}
.store-button:hover {
  border-color:var(--cyan)
}
.store-button>span {
  font:bold 14px Arial;
  letter-spacing:1px
}
.store-button small {
  font:10px var(--font);
  letter-spacing:0;
  display:block;
  margin-top:6px;
  color:#97acc4
}
.store-button>.icon {
  width:17px;
  color:var(--cyan)
}
.dialog-help {
  font-size:10px;
  color:#748ca4;
  margin-top:22px
}
.dialog-help a {
  color:var(--cyan)
}
.toast {
  position:fixed;
  left:50%;
  bottom:28px;
  transform:translate(-50%,20px);
  z-index:200;
  background:#163b35;
  border:1px solid #458f7d;
  color:#cff7ec;
  border-radius:8px;
  padding:12px 22px;
  max-width:calc(100% - 36px);
  width:max-content;
  font-size:12px;
  opacity:0;
  pointer-events:none;
  transition:.2s
}
.toast.show {
  opacity:1;
  transform:translate(-50%,0)
}
@media(min-width:1600px) {
  .hero {
    min-height:760px
  }
  .hero-content {
    padding-top:128px
  }
  .hero h1 {
    font-size:76px
  }
  
}
@media(max-width:1100px) {
  .container,.nav-shell {
    width:calc(100% - 64px)
  }
  .desktop-nav {
    gap:23px
  }
  .hero {
    min-height:655px
  }
  .hero-content {
    padding-top:96px
  }
  .hero h1 {
    font-size:56px
  }
  .hero-image {
    object-position:57% center
  }
  .about-layout {
    gap:65px
  }
  .scenario-layout {
    grid-template-columns:300px 1fr;
    gap:30px
  }
  .episode-content {
    left:22px;
    right:22px
  }
  .episode-content strong {
    font-size:28px
  }
  .episode-description {
    font-size:10px
  }
  .episode-bottom {
    font-size:9px;
    margin-top:19px
  }
  .join-layout {
    gap:50px
  }
  .join-message h2 {
    font-size:32px
  }
  .section h2 {
    font-size:32px
  }
  .about-intro h2 {
    font-size:39px
  }
  .faq-layout {
    gap:60px
  }
  .demo-badge {
    max-width:100px;
    text-align:right
  }
  
}
@media(max-width:820px) {
  .desktop-nav {
    display:none
  }
  .menu-toggle {
    display:block
  }
  .site-header {
    height:76px
  }
  .section {
    padding:75px 0
  }
  .hero {
    min-height:640px
  }
  .hero h1 {
    font-size:51px
  }
  .hero-content {
    padding-top:91px
  }
  .hero-lead {
    font-size:15px
  }
  .hero-image {
    object-position:59% center
  }
  .hero-shade {
    background:linear-gradient(90deg,rgba(6,13,28,.88),rgba(6,13,28,.4) 50%,rgba(6,13,28,.12)),linear-gradient(0deg,var(--bg),transparent 25%)
  }
  .episode-grid {
    gap:16px
  }
  .episode-card {
    aspect-ratio:9/17
  }
  .episode-top {
    top:18px;
    left:17px;
    right:17px
  }
  .episode-number {
    font-size:9px
  }
  .episode-type {
    font-size:9px;
    padding:3px 7px
  }
  .episode-content {
    left:17px;
    right:17px;
    bottom:20px
  }
  .episode-content strong {
    font-size:26px
  }
  .episode-note {
    font-size:9px
  }
  .episode-description {
    font-size:9px
  }
  .episode-bottom {
    flex-direction:column;
    align-items:flex-start;
    gap:7px;
    padding-top:12px;
    margin-top:16px
  }
  .episode-play {
    opacity:1;
    width:38px;
    height:38px;
    top:38%
  }
  .episode-play .icon {
    width:17px
  }
  .episode-footnote {
    flex-wrap:wrap;
    font-size:9px
  }
  .about-layout {
    grid-template-columns:.9fr 1fr;
    gap:37px
  }
  .about-intro h2 {
    font-size:34px
  }
  .about-intro>p:not(.kicker) {
    font-size:12px
  }
  .capability {
    gap:13px
  }
  .capability h3 {
    font-size:14px
  }
  .capability p:not(.capability-label) {
    font-size:10px
  }
  .capability-icon {
    width:36px;
    height:36px
  }
  .capability-index {
    display:none
  }
  .about-caption {
    gap:12px
  }
  .scenario-layout {
    grid-template-columns:250px 1fr;
    gap:22px
  }
  .scenario-tab {
    padding:21px 14px;
    gap:12px
  }
  .scenario-tab strong {
    font-size:12px
  }
  .scenario-panel {
    padding:24px
  }
  .demo-header {
    align-items:flex-start
  }
  .demo-mark {
    max-width:125px
  }
  .demo-footer {
    flex-direction:column;
    align-items:flex-start;
    gap:8px
  }
  .user-prompt {
    margin-left:15px;
    padding:16px
  }
  .user-prompt p {
    font-size:12px
  }
  .join-layout {
    gap:35px
  }
  .join-message h2 {
    font-size:29px
  }
  .join-steps li {
    gap:17px
  }
  .step-number {
    font-size:22px
  }
  .faq-layout {
    grid-template-columns:1fr 1.6fr;
    gap:40px
  }
  .faq-layout h2 {
    font-size:30px
  }
  .footer-bottom {
    font-size:8px
  }
  .theater-story {
    padding:29px 26px 24px
  }
  .theater-story h2 {
    font-size:24px
  }
  .theater-controls {
    gap:7px
  }
  .theater-controls .button {
    padding:10px
  }
  .theater-controls .text-button {
    font-size:10px
  }
  
}
@media(max-width:600px) {
  html {
    scroll-padding-top:85px
  }
  .container,.nav-shell {
    width:calc(100% - 40px)
  }
  .site-header {
    height:70px
  }
  .brand img {
    width:36px;
    height:36px
  }
  .brand {
    gap:8px
  }
  .brand-text {
    font-size:19px
  }
  .brand-text small {
    font-size:8px
  }
  .nav-actions {
    gap:8px
  }
  .nav-actions>.button {
    font-size:10px;
    padding:9px 12px;
    min-height:34px;
    gap:6px
  }
  .nav-actions .button .icon {
    width:14px;
    height:14px
  }
  .hero {
    min-height:790px
  }
  .hero-image {
    height:480px;
    top:0;
    object-position:66% center;
    object-fit:cover
  }
  .hero-shade {
    background:linear-gradient(0deg,var(--bg) 5%,var(--bg) 46%,rgba(8,14,27,.8) 60%,transparent 83%),linear-gradient(90deg,rgba(8,14,27,.12),transparent)
  }
  .hero-content {
    padding-top:327px;
    padding-bottom:83px
  }
  .hero-eyebrow {
    font-size:9px;
    letter-spacing:1px;
    gap:8px
  }
  .hero h1 {
    font-size:43px;
    letter-spacing:-1.2px;
    margin-top:20px;
    margin-bottom:20px
  }
  .hero-lead {
    font-size:14px;
    line-height:1.9
  }
  .hero-sub {
    font-size:11px;
    margin-top:12px;
    line-height:1.9
  }
  .hero-buttons {
    gap:22px;
    margin-top:25px
  }
  .hero-buttons .button {
    padding:14px 20px;
    font-size:12px;
    min-height:47px
  }
  .hero-secondary {
    font-size:11px
  }
  .hero-format {
    font-size:9px;
    margin-top:22px;
    letter-spacing:0
  }
  .hero-bottom {
    bottom:18px;
    font-size:8px
  }
  .hero-bottom>span {
    max-width:210px
  }
  .hero-bottom a {
    font-size:8px;
    gap:8px
  }
  .hero-film-label {
    top:200px;
    right:11px;
    font-size:8px
  }
  .section {
    padding:60px 0
  }
  .episodes-section {
    padding-top:49px
  }
  .section-heading {
    display:block;
    margin-bottom:27px
  }
  .kicker {
    font-size:9px;
    letter-spacing:1.5px;
    margin-bottom:16px
  }
  .section h2 {
    font-size:27px;
    line-height:1.4;
    letter-spacing:-.4px
  }
  .mobile-only {
    display:initial
  }
  .section-aside {
    font-size:11px;
    margin-top:17px;
    line-height:1.9
  }
  .section-aside br {
    display:none
  }
  .episode-grid {
    display:flex;
    overflow-x:auto;
    scroll-snap-type:x mandatory;
    gap:16px;
    padding-bottom:14px;
    margin-right:-20px;
    padding-right:20px;
    scrollbar-width:thin;
    scrollbar-color:#2a4858 transparent
  }
  .episode-card {
    flex:0 0 80%;
    scroll-snap-align:start;
    aspect-ratio:9/14.8
  }
  .episode-top {
    top:23px;
    left:22px;
    right:22px
  }
  .episode-number {
    font-size:10px
  }
  .episode-type {
    font-size:10px;
    padding:4px 10px
  }
  .episode-content {
    left:23px;
    right:23px;
    bottom:23px
  }
  .episode-content strong {
    font-size:31px
  }
  .episode-note {
    font-size:10px;
    margin-bottom:11px
  }
  .episode-description {
    font-size:10px;
    margin-top:12px
  }
  .episode-bottom {
    flex-direction:row;
    align-items:center;
    margin-top:21px;
    padding-top:16px;
    gap:8px;
    font-size:9px
  }
  .episode-play {
    width:45px;
    height:45px;
    top:37%
  }
  .episode-footnote {
    margin-top:17px;
    line-height:1.9;
    display:block;
    padding-left:12px;
    position:relative
  }
  .episode-footnote>.mini-dot {
    position:absolute;
    top:7px;
    left:0
  }
  .episode-footnote>.text-button {
    display:flex;
    margin-top:12px;
    font-size:10px
  }
  .about-layout {
    display:block
  }
  .about-intro h2 {
    font-size:34px;
    line-height:1.32
  }
  .about-intro>p:not(.kicker) {
    max-width:none;
    font-size:12px
  }
  .about-intro>p.muted {
    margin-top:14px
  }
  .about-caption {
    margin-top:25px;
    gap:15px
  }
  .about-caption .bracket {
    font-size:39px
  }
  .about-caption>span:nth-child(2) {
    font-size:11px
  }
  .capability-list {
    margin-top:42px
  }
  .capability {
    gap:19px;
    padding-bottom:22px;
    margin-bottom:24px
  }
  .capability h3 {
    font-size:16px
  }
  .capability p:not(.capability-label) {
    font-size:11px
  }
  .capability-icon {
    width:42px;
    height:42px
  }
  .capability-label {
    font-size:8px
  }
  .capability-index {
    display:block;
    font-size:10px
  }
  .scenario-layout {
    display:block
  }
  .scenario-tabs {
    display:flex;
    flex-direction:row;
    gap:7px;
    overflow-x:auto;
    padding-bottom:20px
  }
  .scenario-tab {
    flex:1;
    min-width:0;
    padding:13px 8px;
    gap:0;
    display:block;
    text-align:center
  }
  .tab-number {
    display:none
  }
  .scenario-tab strong {
    font-size:10px;
    white-space:nowrap
  }
  .scenario-tab small {
    font-size:8px;
    margin-top:5px;
    white-space:nowrap
  }
  .scenario-tab .icon {
    display:none
  }
  .scenario-panel {
    padding:22px 19px
  }
  .demo-header {
    padding-bottom:18px;
    gap:8px
  }
  .demo-mark {
    max-width:none;
    font-size:10px
  }
  .demo-badge {
    max-width:none;
    font-size:8px;
    align-self:center
  }
  .user-prompt {
    padding:15px 16px;
    margin-top:20px;
    margin-left:17px
  }
  .user-prompt p {
    font-size:12px
  }
  .demo-response {
    gap:12px
  }
  .demo-response strong {
    font-size:12px
  }
  .demo-response p {
    font-size:11px
  }
  .demo-footer {
    flex-direction:row;
    align-items:center;
    gap:12px;
    margin-top:25px
  }
  .demo-footer>span {
    font-size:8px;
    max-width:130px
  }
  .demo-footer>.text-button {
    font-size:9px;
    flex-shrink:0
  }
  .join-layout {
    display:block
  }
  .join-message h2 {
    font-size:29px;
    line-height:1.4
  }
  .join-message>p:not(.kicker) {
    font-size:12px
  }
  .join-message .button {
    font-size:12px;
    padding:15px 20px
  }
  .join-note {
    font-size:8px
  }
  .join-steps {
    margin-top:41px;
    padding-top:28px;
    border-top:1px solid #25414a
  }
  .join-steps li {
    gap:21px;
    padding:23px 0
  }
  .step-number {
    font-size:26px
  }
  .join-steps h3 {
    font-size:14px
  }
  .join-steps p {
    font-size:11px;
    max-width:none
  }
  .faq-layout {
    display:block
  }
  .faq-layout h2 {
    font-size:30px
  }
  .faq-layout h2 br {
    display:none
  }
  .faq-list {
    margin-top:28px
  }
  summary {
    font-size:12px;
    padding:19px 0
  }
  .faq-list details>p {
    font-size:11px;
    padding-right:22px
  }
  .closing-strip {
    padding:25px 0
  }
  .closing-strip>.container {
    gap:18px
  }
  .closing-word {
    font-size:25px
  }
  .closing-strip p {
    font-size:9px;
    letter-spacing:1px
  }
  .closing-strip a {
    width:35px;
    height:35px
  }
  .site-footer {
    padding-top:29px
  }
  .footer-top {
    display:block
  }
  .footer-brand {
    font-size:15px
  }
  .footer-links {
    margin-top:19px;
    gap:22px;
    font-size:10px
  }
  .footer-bottom {
    display:block;
    margin-top:20px;
    padding-top:18px;
    font-size:8px
  }
  .footer-bottom>span {
    display:block;
    margin-top:6px
  }
  .theater {
    width:calc(100% - 22px);
    max-height:95dvh;
    border-radius:12px
  }
  .theater-header {
    padding:8px 14px
  }
  .theater-layout {
    display:flex;
    flex-direction:column;
    min-height:0
  }
  .theater-visual {
    min-height:245px;
    height:29dvh;
    flex-shrink:0
  }
  .theater-visual>img {
    object-fit:cover;
    object-position:center 35%
  }
  .theater-frame-label {
    top:17px;
    left:16px;
    font-size:9px
  }
  .theater-progress {
    bottom:33px;
    left:16px;
    right:16px
  }
  .theater-format {
    bottom:10px;
    left:16px;
    font-size:8px
  }
  .theater-story {
    padding:22px 23px 19px
  }
  .theater-story .kicker {
    font-size:8px;
    margin-bottom:9px
  }
  .theater-story h2 {
    font-size:23px
  }
  .scene-setting {
    font-size:10px;
    line-height:1.8;
    margin-top:12px;
    min-height:0
  }
  .dialogue-box {
    margin-top:15px;
    padding:11px 14px
  }
  .dialogue-box p {
    font-size:12px;
    line-height:1.8;
    margin-top:6px
  }
  .dialogue-speaker {
    font-size:8px
  }
  .scene-artifact {
    margin-top:14px;
    gap:6px
  }
  .artifact-chip {
    font-size:9px;
    padding:5px 9px
  }
  .scene-caption {
    font-size:9px;
    margin-top:12px;
    margin-bottom:18px
  }
  .theater-controls {
    padding-top:14px;
    gap:10px
  }
  .theater-controls .button {
    font-size:10px;
    padding:10px 12px;
    min-height:37px
  }
  .theater-controls .text-button {
    font-size:9px
  }
  .auto-button {
    font-size:9px;
    padding:6px 9px
  }
  .episode-switcher {
    margin-top:15px;
    gap:26px
  }
  .small-dialog {
    padding:32px 25px
  }
  .small-dialog h2 {
    font-size:26px
  }
  .dialog-description {
    font-size:11px
  }
  .toast {
    font-size:11px;
    padding:11px 16px;
    bottom:20px
  }
  
}
@media(max-width:360px) {
  .container,.nav-shell {
    width:calc(100% - 32px)
  }
  .hero h1 {
    font-size:38px
  }
  .hero-buttons {
    gap:15px
  }
  .hero-buttons .button {
    padding:13px 16px
  }
  .brand-text small {
    letter-spacing:2px
  }
  .episode-grid {
    margin-right:-16px;
    padding-right:16px
  }
  .scenario-tab strong {
    font-size:9px
  }
  .scenario-tab small {
    font-size:7px
  }
  .demo-badge {
    font-size:7px
  }
  .theater-story {
    padding-inline:17px
  }
  
}
@media(prefers-reduced-motion:reduce) {
  html {
    scroll-behavior:auto
  }
  *,*:before,*:after {
    animation-duration:.01ms!important;
    transition-duration:.01ms!important
  }
  .hero-image {
    animation:none
  }
  
}

/* ============================================================
   预告片（Trailer）
   ============================================================ */
.trailer-section {
  padding: 0 0 clamp(56px, 8vw, 104px);
}

.trailer-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  background: #02060d;
  border: 1px solid var(--border);
  box-shadow:
    0 32px 80px -32px rgba(0, 0, 0, .78),
    0 0 0 1px rgba(113, 234, 216, .06) inset;
}

.trailer-video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 播放遮罩层 */
.trailer-poster {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  border: 0;
  padding: 0;
  cursor: pointer;
  background:
    radial-gradient(circle at 50% 46%, rgba(113, 234, 216, .16) 0%, transparent 62%),
    linear-gradient(180deg, rgba(8, 14, 27, .42), rgba(8, 14, 27, .82));
  backdrop-filter: blur(1.5px);
  transition: opacity .38s ease, visibility .38s ease;
}

.trailer-poster[hidden] {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* 播放按钮 */
.trailer-play {
  position: relative;
  display: grid;
  place-items: center;
  width: 82px;
  height: 82px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow:
    0 0 0 1px rgba(113, 234, 216, .55),
    0 0 44px rgba(113, 234, 216, .42),
    0 12px 32px -8px rgba(0, 0, 0, .6);
  transition: transform .28s cubic-bezier(.34, 1.4, .5, 1);
}

.trailer-play::before {
  content: "";
  position: absolute;
  inset: -14px;
  border-radius: 50%;
  border: 1px solid rgba(113, 234, 216, .34);
  animation: trailerPulse 2.4s ease-out infinite;
}

@keyframes trailerPulse {
  0% { transform: scale(.82); opacity: .85; }
  100% { transform: scale(1.28); opacity: 0; }
}

.trailer-play svg {
  width: 28px;
  height: 28px;
  fill: #092323;
  margin-left: 3px;
}

.trailer-poster:hover .trailer-play,
.trailer-poster:focus-visible .trailer-play {
  transform: scale(1.08);
}

.trailer-poster-label {
  font-size: 12px;
  letter-spacing: .22em;
  color: rgba(242, 244, 250, .82);
  text-transform: uppercase;
}

.trailer-poster-duration {
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--muted);
}

/* 播放中：隐藏遮罩，显示原生控件 */
.trailer-frame.is-playing .trailer-video {
  object-fit: contain;
}

/* 移动端适配 */
@media (max-width: 700px) {
  .trailer-play { width: 64px; height: 64px; }
  .trailer-play svg { width: 22px; height: 22px; }
  .trailer-frame { border-radius: 10px; }
}

/* 减弱动效偏好 */
@media (prefers-reduced-motion: reduce) {
  .trailer-play::before { animation: none; }
  .trailer-poster { transition: none; }
}