:root {
  --page-bg: #f5f8ff;
  --page-bg-2: #eef5ff;
  --paper: rgba(255, 255, 255, 0.76);
  --paper-strong: rgba(255, 255, 255, 0.92);
  --text: #102033;
  --heading: #07192d;
  --muted: #5d6d83;
  --muted-2: #7b8aa0;
  --line: rgba(83, 125, 171, 0.18);
  --line-strong: rgba(54, 129, 219, 0.26);
  --ice: #1d8eff;
  --ice-2: #58c8ff;
  --cyan: #18c8d2;
  --lavender: #9c7cff;
  --lavender-2: #d8ccff;
  --green: #38c8a2;
  --orange: #f0a62b;
  --red: #f06f86;
  --shadow: 0 24px 70px rgba(31, 74, 128, 0.14);
  --shadow-soft: 0 14px 45px rgba(31, 74, 128, 0.10);
  --radius-xl: 34px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 6%, rgba(156, 124, 255, 0.18), transparent 30%),
    radial-gradient(circle at 84% 12%, rgba(63, 185, 255, 0.18), transparent 28%),
    radial-gradient(circle at 18% 72%, rgba(44, 206, 176, 0.10), transparent 32%),
    linear-gradient(145deg, #fbfdff 0%, #f4f8ff 42%, #edf5ff 100%);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 720px;
  pointer-events: none;
  opacity: 0.34;
  background-image:
    linear-gradient(rgba(73, 121, 176, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(73, 121, 176, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  z-index: 0;
}

::selection { background: rgba(29, 142, 255, 0.18); }
a { color: inherit; text-decoration: none; }
p { line-height: 1.85; color: var(--muted); }
img, video { max-width: 100%; display: block; }

.page-shell { position: relative; min-height: 100vh; z-index: 1; }

.site-nav { display: flex; align-items: center; justify-content: flex-end; gap: 2px; flex-wrap: wrap; }
.site-nav a {
  position: relative;
  padding: 10px 12px;
  border-radius: 999px;
  color: #33475e;
  font-size: 14px;
  white-space: nowrap;
  transition: color .2s ease, background .2s ease;
}
.site-nav a:hover, .site-nav a.active { color: #075dad; background: rgba(29, 142, 255, 0.08); }
.site-nav a.active::after {
  content: ""; position: absolute; left: 16px; right: 16px; bottom: 5px; height: 2px;
  border-radius: 999px; background: linear-gradient(90deg, var(--ice), var(--lavender));
}

.section { position: relative; width: min(var(--max), calc(100% - 36px)); margin: 0 auto; padding: 86px 0; }
.hero { padding-top: 96px; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; color: #236ba8; font-weight: 700; background: rgba(255,255,255,.72); border: 1px solid var(--line); border-radius: 999px; padding: 8px 14px; box-shadow: var(--shadow-soft); }
.eyebrow span:first-child { width: 8px; height: 8px; border-radius: 999px; background: var(--green); box-shadow: 0 0 18px rgba(56, 200, 162, .9); }
h1 { margin: 24px 0 0; font-size: clamp(66px, 9vw, 132px); line-height: .9; letter-spacing: -5px; color: var(--heading); }
.hero-slogan { margin: 20px 0 0; font-size: clamp(28px, 4vw, 54px); font-weight: 850; line-height: 1.16; color: #0a2545; }
.hero-desc { max-width: 720px; font-size: 18px; color: #4c627a; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }
.primary-btn, .ghost-btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 20px; border-radius: 999px; font-weight: 750;
  border: 1px solid transparent; transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.primary-btn { color: white; background: linear-gradient(135deg, #0f78ff, #55c9ff); box-shadow: 0 18px 44px rgba(29, 142, 255, .24); }
.ghost-btn { color: #17629f; background: rgba(255, 255, 255, .72); border-color: var(--line); box-shadow: var(--shadow-soft); }
.primary-btn:hover, .ghost-btn:hover { transform: translateY(-2px); box-shadow: 0 24px 56px rgba(29, 142, 255, .18); }
.capability-pills { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.capability-pills span, .case-tags span, .demo-ability span, .asset-tags span {
  display: inline-flex; align-items: center; border-radius: 999px; padding: 7px 11px; font-size: 13px;
  background: rgba(29, 142, 255, .08); color: #17629f; border: 1px solid rgba(29, 142, 255, .14);
}

.hero-stage { position: relative; }
.video-card, .compare-card, .challenge-card, .root-card, .architecture-panel, .flow-visual, .highlight-card, .metric-card, .asset-card, .signal-card {
  background: linear-gradient(145deg, rgba(255,255,255,.80), rgba(248,252,255,.62));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: none;
}
.video-card { padding: 16px; }
.video-card-top { display: flex; align-items: center; gap: 10px; color: #315671; font-weight: 750; margin-bottom: 12px; }
.live-dot { width: 9px; height: 9px; border-radius: 999px; background: var(--red); box-shadow: 0 0 0 6px rgba(240, 111, 134, .12); }
.dialogue-preview { margin-top: 12px; display: grid; gap: 8px; }
.dialogue-preview p { margin: 0; padding: 10px 12px; border-radius: 14px; background: rgba(255,255,255,.72); color: #3c5168; border: 1px solid rgba(122, 159, 203, .14); line-height: 1.65; }
.dialogue-preview .interrupt { background: rgba(255, 235, 238, .72); color: #9b3650; }

.metric-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 28px; }
.metric-card { position: relative; overflow: hidden; padding: 22px; min-height: 154px; }
.metric-card::before { content: ""; position: absolute; inset: -1px; background: radial-gradient(circle at 15% 0%, rgba(85, 201, 255, .24), transparent 38%); pointer-events: none; }
.metric-card .metric-note { position: relative; color: #2971b0; font-weight: 750; font-size: 13px; }
.metric-card strong { position: relative; display: block; margin-top: 12px; font-size: clamp(34px, 4.5vw, 54px); line-height: 1; letter-spacing: -2px; color: #0b559d; }
.metric-card p { position: relative; margin: 12px 0 0; color: #526980; }

.section-head { max-width: 820px; margin-bottom: 26px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-index { margin: 0 0 10px; color: #1881db; font-weight: 800; letter-spacing: .08em; font-size: 13px; }
.section-head h2 { margin: 0; color: var(--heading); font-size: clamp(30px, 4.6vw, 58px); line-height: 1.08; letter-spacing: -1.6px; }
.section-head p { font-size: 17px; }
.compare-grid, .challenge-grid, .root-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.root-grid { grid-template-columns: repeat(2, 1fr); }
.compare-card, .challenge-card, .root-card { padding: 24px; }
.compare-card h3, .challenge-card h3, .root-card h3 { color: var(--heading); margin: 10px 0 8px; }
.compare-icon, .challenge-num, .highlight-icon { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 15px; color: #fff; font-weight: 900; background: linear-gradient(135deg, var(--ice), var(--lavender)); }
.active-card { border-color: rgba(29, 142, 255, .35); background: linear-gradient(145deg, rgba(239, 249, 255, .86), rgba(255,255,255,.64)); }
.before-after { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 18px; margin: 24px 0; }
.before-box, .after-box { padding: 22px; border-radius: var(--radius-lg); background: rgba(255,255,255,.72); border: 1px solid var(--line); box-shadow: var(--shadow-soft); }
.before-box span, .after-box span { color: #6c7d91; font-weight: 800; }
.before-box h3, .after-box h3 { margin: 8px 0; color: var(--heading); }
.switch-flow { display: flex; gap: 5px; align-items: center; }
.switch-flow span { width: 8px; height: 8px; border-radius: 999px; background: var(--ice); animation: pulse 1.4s infinite; }
.switch-flow span:nth-child(2) { animation-delay: .2s; }
.switch-flow span:nth-child(3) { animation-delay: .4s; }
@keyframes pulse { 0%,100% { opacity: .25; transform: scale(.8); } 50% { opacity: 1; transform: scale(1.1); } }
.case-tags, .demo-ability, .asset-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.challenge-card.hot .challenge-num { background: linear-gradient(135deg, var(--ice), var(--red)); }
.challenge-card.warm .challenge-num { background: linear-gradient(135deg, var(--orange), var(--lavender)); }

.root-header { display: flex; justify-content: space-between; gap: 16px; align-items: center; margin-bottom: 14px; }
.root-header span { color: #126eb8; font-weight: 850; }
.root-header strong { color: #607087; font-size: 14px; }
.root-summary, .center-note, .architecture-copy { text-align: center; font-size: 18px; color: #274a69; font-weight: 700; }

.asset-mount, .asset-strip, .asset-stack, .asset-gallery { display: grid; gap: 18px; }
.asset-strip { grid-template-columns: 1fr; }
.asset-stack { grid-template-columns: 1fr; }
.asset-gallery { grid-template-columns: repeat(2, 1fr); }
.embodied-layout .asset-gallery { grid-column: 1 / -1; grid-template-columns: repeat(3, 1fr); }
.asset-card { overflow: hidden; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.asset-card:hover { transform: translateY(-3px); box-shadow: 0 28px 75px rgba(31, 74, 128, .16); border-color: var(--line-strong); }
.media-frame { padding: 14px; background: linear-gradient(145deg, rgba(239, 248, 255, .82), rgba(255,255,255,.54)); border-bottom: 1px solid var(--line); }
.media-frame img, .media-frame video { width: 100%; max-height: 560px; object-fit: contain; border-radius: 18px; cursor: zoom-in; background: #fff; }
.asset-hero .media-frame img, .asset-hero .media-placeholder { aspect-ratio: 16 / 10; }
.asset-caption { padding: 16px 18px 18px; }
.asset-caption h3 { margin: 8px 0 8px; color: var(--heading); }
.asset-caption p { margin: 0; }
.media-placeholder {
  min-height: 230px; padding: 24px; display: grid; place-items: center; text-align: center; gap: 10px;
  border-radius: 20px; border: 1px dashed rgba(29, 142, 255, .32);
  background:
    radial-gradient(circle at center, rgba(85, 201, 255, .15), transparent 46%),
    linear-gradient(135deg, rgba(255,255,255,.66), rgba(236, 247, 255, .54));
  color: #315671;
}
.placeholder-orbit { position: relative; width: 78px; height: 78px; border-radius: 999px; border: 1px solid rgba(29, 142, 255, .18); }
.placeholder-orbit span { position: absolute; width: 9px; height: 9px; border-radius: 999px; background: var(--ice); box-shadow: 0 0 18px rgba(29,142,255,.4); }
.placeholder-orbit span:nth-child(1) { left: 8px; top: 14px; }
.placeholder-orbit span:nth-child(2) { right: 10px; top: 28px; background: var(--lavender); }
.placeholder-orbit span:nth-child(3) { left: 36px; bottom: 8px; background: var(--green); }
.media-placeholder strong { color: #0c5eaa; }
.media-placeholder p { margin: 0; font-size: 14px; color: #6c7d91; }

.architecture-panel { display: grid; grid-template-columns: 330px 1fr; gap: 24px; padding: 24px; margin-top: 20px; }
.arch-left { display: grid; align-content: center; gap: 10px; }
.arch-node { padding: 16px 18px; border-radius: 18px; background: rgba(255,255,255,.72); border: 1px solid var(--line); color: #284963; font-weight: 800; text-align: center; }
.input-node { background: rgba(231, 247, 255, .85); }
.shared-node { background: linear-gradient(135deg, rgba(220, 242, 255, .92), rgba(246, 241, 255, .92)); color: #0b559d; }
.arch-arrow, .flow-arrow { width: 2px; height: 28px; margin: 0 auto; background: linear-gradient(var(--ice), var(--lavender)); border-radius: 999px; }
.channel-group { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.channel-card { position: relative; overflow: hidden; padding: 22px; border-radius: 22px; border: 1px solid var(--line); background: rgba(255,255,255,.66); }
.channel-card::before { content: ""; position: absolute; inset: auto 14px 0; height: 4px; border-radius: 999px; background: var(--ice); }
.channel-card.semantic::before { background: linear-gradient(90deg, var(--lavender), #6488ff); }
.channel-card.acoustic::before { background: linear-gradient(90deg, var(--cyan), var(--ice)); }
.channel-card.control::before { background: linear-gradient(90deg, var(--orange), #ffd88a); }
.channel-card span { font-weight: 900; color: #126eb8; }
.channel-card h3 { color: var(--heading); margin: 10px 0 4px; }

.flow-visual { padding: 24px; display: grid; gap: 14px; }
.flow-row { display: grid; grid-template-columns: 92px repeat(5, minmax(80px, 1fr)); gap: 10px; align-items: center; }
.flow-row b, .flow-row span { padding: 12px 14px; border-radius: 16px; background: rgba(255,255,255,.76); border: 1px solid var(--line); text-align: center; }
.semantic-flow span { color: #5f4fc6; }
.acoustic-flow span { color: #0783a0; }
.control-flow span { color: #a56700; }

.highlight-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.highlight-card { padding: 22px; }
.highlight-card h3 { color: var(--heading); }


.embodied-section { width: min(1240px, calc(100% - 36px)); }
.embodied-layout { display: grid; grid-template-columns: 330px 1fr; gap: 18px; align-items: stretch; }
.embodied-flow, .signal-card { padding: 22px; }
.embodied-flow { display: grid; align-content: center; justify-items: center; border-radius: var(--radius-lg); background: linear-gradient(145deg, rgba(250,247,255,.76), rgba(239,248,255,.72)); border: 1px solid var(--line); box-shadow: var(--shadow-soft); }
.flow-node { width: 100%; padding: 14px 16px; border-radius: 18px; text-align: center; font-weight: 850; border: 1px solid var(--line); background: rgba(255,255,255,.78); color: #315671; }
.flow-node.lychee { color: #0b559d; }
.signal-card h3 { margin-top: 0; color: var(--heading); }
.micro-wave { display: flex; align-items: end; gap: 6px; height: 70px; margin: 14px 0; }
.micro-wave span { width: 14px; height: 22px; border-radius: 999px; background: linear-gradient(var(--ice-2), var(--lavender)); animation: wave 1.2s ease-in-out infinite; }
.micro-wave span:nth-child(2) { height: 48px; animation-delay: .1s; }
.micro-wave span:nth-child(3) { height: 34px; animation-delay: .2s; }
.micro-wave span:nth-child(4) { height: 62px; animation-delay: .3s; }
.micro-wave span:nth-child(5) { height: 30px; animation-delay: .4s; }
.micro-wave span:nth-child(6) { height: 52px; animation-delay: .5s; }
@keyframes wave { 0%,100% { transform: scaleY(.72); } 50% { transform: scaleY(1); } }

.tree-root, .site-footer { width: min(var(--max), calc(100% - 36px)); margin: 0 auto 34px; padding: 22px; display: flex; justify-content: space-between; align-items: center; color: #5f7188; }
.site-footer a { color: #126eb8; font-weight: 800; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .68s ease, transform .68s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: .08s; }
.delay-2 { transition-delay: .16s; }
.delay-3 { transition-delay: .24s; }

.lightbox { position: fixed; inset: 0; z-index: 80; display: none; align-items: center; justify-content: center; padding: 24px; }
.lightbox.open { display: flex; }
.lightbox-backdrop { position: absolute; inset: 0; background: rgba(7, 25, 45, .42); }
.lightbox-panel { position: relative; z-index: 1; width: min(1100px, 96vw); max-height: 92vh; overflow: auto; padding: 18px; border-radius: 26px; background: rgba(255,255,255,.94); border: 1px solid var(--line); box-shadow: 0 30px 100px rgba(12, 45, 80, .25); }
.lightbox-panel h3 { margin: 0 70px 14px 0; color: var(--heading); }
.lightbox-panel img { width: 100%; max-height: 78vh; object-fit: contain; border-radius: 18px; background: #fff; }
.lightbox-close { position: absolute; right: 16px; top: 14px; border: 1px solid var(--line); border-radius: 999px; padding: 8px 12px; background: white; color: #126eb8; font-weight: 800; cursor: pointer; }

@media (max-width: 980px) {
  .site-nav { justify-content: flex-start; }
  .architecture-panel, .embodied-layout, .compare-grid, .challenge-grid, .root-grid, .metric-row, .highlight-grid, .asset-gallery, .embodied-layout .asset-gallery { grid-template-columns: 1fr; }
  .before-after { grid-template-columns: 1fr; }
  .switch-flow { justify-content: center; }
  .flow-row { grid-template-columns: 1fr; }
  h1 { letter-spacing: -2.5px; }
}

@media (max-width: 620px) {
  .section { width: min(100% - 24px, var(--max)); padding: 58px 0; }
  .hero { padding-top: 64px; }
  .site-nav a { font-size: 13px; padding: 8px 9px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .channel-group { grid-template-columns: 1fr; }
  .media-placeholder { min-height: 190px; }
}

/* ===== 2026-06 精修：浅色科技风层次、梦幻感与首屏回调 ===== */
:root {
  --page-bg: #f3f7ff;
  --page-bg-2: #eaf3ff;
  --paper: rgba(255, 255, 255, 0.82);
  --paper-strong: rgba(255, 255, 255, 0.96);
  --text: #0d2137;
  --heading: #051b34;
  --muted: #4f6279;
  --muted-2: #6b7c91;
  --line: rgba(72, 116, 170, 0.22);
  --line-strong: rgba(29, 126, 230, 0.36);
  --ice: #0e82f5;
  --ice-2: #4fc3ff;
  --cyan: #12b7c8;
  --lavender: #8f74ff;
  --lavender-2: #c9bbff;
  --shadow: 0 28px 78px rgba(34, 78, 132, 0.18), 0 8px 24px rgba(82, 148, 220, 0.08);
  --shadow-soft: 0 18px 52px rgba(36, 83, 139, 0.14), 0 4px 16px rgba(113, 161, 220, 0.08);
  --shadow-float: 0 34px 90px rgba(36, 83, 139, 0.20), 0 14px 36px rgba(127, 155, 255, 0.10);
}

body {
  background:
    radial-gradient(circle at 8% 10%, rgba(143, 116, 255, 0.21), transparent 27%),
    radial-gradient(circle at 78% 8%, rgba(79, 195, 255, 0.23), transparent 31%),
    radial-gradient(circle at 52% 42%, rgba(226, 241, 255, 0.34), transparent 32%),
    radial-gradient(circle at 18% 78%, rgba(18, 183, 200, 0.13), transparent 34%),
    linear-gradient(145deg, #fbfdff 0%, #f2f7ff 42%, #eaf3ff 100%);
}
body::before { opacity: 0.34; }


.site-nav a { color: #243d57; }
.site-nav a:hover,
.site-nav a.active { color: #075aa8; background: rgba(14, 130, 245, 0.10); }

.section { padding: 92px 0; }
.hero {
  padding-top: 78px;
  min-height: calc(100vh - 72px);
  display: grid;
  align-content: center;
}
.hero::before {
  content: "";
  position: absolute;
  width: 520px;
  height: 520px;
  left: -220px;
  top: 60px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(143, 116, 255, 0.16), transparent 68%);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  width: 680px;
  height: 220px;
  right: -180px;
  top: 160px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(79, 195, 255, 0.12), rgba(143, 116, 255, 0.10), transparent);
  transform: rotate(-12deg);
  pointer-events: none;
}
.hero-copy { position: relative; z-index: 1; padding-top: 4px; }
.eyebrow {
  color: #155f9f;
  background: rgba(255,255,255,.82);
  border-color: rgba(79, 148, 223, 0.25);
  box-shadow: 0 14px 42px rgba(33, 99, 166, 0.13), inset 0 1px 0 rgba(255,255,255,0.8);
}
h1 {
  margin-top: 18px;
  background: linear-gradient(110deg, #052a57 4%, #0b73e8 46%, #43c9ff 78%, #7f74ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 22px 56px rgba(36, 118, 213, 0.14);
}
.hero-slogan {
  margin-top: 16px;
  color: #071f3c;
  text-shadow: 0 14px 36px rgba(73, 132, 200, 0.10);
}
.hero-desc { font-size: 18.5px; color: #405972; max-width: 690px; }
.hero-actions { margin-top: 24px; }
.primary-btn { box-shadow: 0 20px 54px rgba(14, 130, 245, .30), 0 0 26px rgba(79,195,255,.18); }
.ghost-btn { box-shadow: 0 15px 42px rgba(44, 96, 153, .13); }
.primary-btn:hover, .ghost-btn:hover { transform: translateY(-3px); box-shadow: var(--shadow-float); }
.capability-pills { margin-top: 18px; }
.capability-pills span,
.case-tags span,
.demo-ability span,
.asset-tags span {
  color: #105f9f;
  background: linear-gradient(135deg, rgba(231, 246, 255, 0.86), rgba(247, 244, 255, 0.66));
  border-color: rgba(29, 142, 255, 0.20);
  box-shadow: 0 8px 22px rgba(47, 114, 184, 0.08);
}

.hero-metrics {
  margin-top: 22px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  max-width: 650px;
}
.hero-metrics .metric-card {
  min-height: 118px;
  padding: 18px 19px;
}
.hero-metrics .metric-card strong { font-size: clamp(30px, 3.4vw, 44px); }
.hero-metrics .metric-card p { margin-top: 8px; font-size: 15px; line-height: 1.45; }
.hero-metrics .metric-card .metric-note { font-size: 12.5px; }

.hero-stage { position: relative; z-index: 1; }
.hero-video {
  padding: 14px;
  border-radius: 28px;
  box-shadow: 0 30px 90px rgba(34, 78, 132, 0.20), 0 0 34px rgba(143, 116, 255, 0.10);
}
.hero-video .video-card-top { margin-bottom: 9px; font-size: 14px; }
.hero-video .media-frame { padding: 9px; }
.hero-video .media-frame img,
.hero-video .media-frame video { max-height: 220px; border-radius: 16px; }
.hero-video .media-placeholder { min-height: 178px; padding: 18px; }
.hero-video .placeholder-orbit { width: 60px; height: 60px; }
.hero-video .asset-caption { display: none; }
.dialogue-preview { margin-top: 10px; gap: 6px; }
.dialogue-preview p {
  padding: 8px 10px;
  border-radius: 13px;
  line-height: 1.48;
  font-size: 13.5px;
  background: rgba(255,255,255,.82);
  box-shadow: 0 6px 18px rgba(59, 103, 158, 0.055);
}

.video-card,
.compare-card,
.challenge-card,
.root-card,
.architecture-panel,
.flow-visual,
.highlight-card,
.metric-card,
.asset-card,
.signal-card,
.before-box,
.after-box,
.embodied-flow,
.semantic-copy-card,
.semantic-compare article {
  box-shadow: var(--shadow);
  border-color: rgba(93, 139, 192, 0.24);
  background: linear-gradient(145deg, rgba(255,255,255,.86), rgba(247,252,255,.70));
  backdrop-filter: none;
}
.compare-card,
.challenge-card,
.root-card,
.highlight-card,
.metric-card,
.before-box,
.after-box,
.channel-card,
.asset-card,
.signal-card,
.embodied-flow,
.compare-card:hover,
.challenge-card:hover,
.root-card:hover,
.highlight-card:hover,
.metric-card:hover,
.before-box:hover,
.after-box:hover,
.channel-card:hover,
.signal-card:hover,
.embodied-flow:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-float);
  border-color: var(--line-strong);
}
.metric-card::after,
.compare-card::after,
.challenge-card::after,
.channel-card::after,
.semantic-showcase::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 0;
  height: 3px;
  border-radius: 999px 999px 0 0;
  background: linear-gradient(90deg, rgba(14,130,245,.35), rgba(143,116,255,.28), rgba(18,183,200,.22));
  opacity: .72;
  pointer-events: none;
}
.compare-card,
.challenge-card,
.metric-card,
.channel-card { position: relative; overflow: hidden; }

.section-head h2 { color: #061a31; }
.section-head p { color: #445d76; font-size: 17.5px; }
.section-index { color: #0d73c8; }
.compare-grid,
.challenge-grid { gap: 22px; }
.compare-card,
.challenge-card { padding: 27px; }
.compare-card h3,
.challenge-card h3 { font-size: 22px; margin-top: 14px; }
.compare-card p,
.challenge-card p { font-size: 16.5px; line-height: 1.78; color: #4b627a; }
.compare-icon,
.challenge-num,
.highlight-icon {
  width: 48px;
  height: 48px;
  border-radius: 17px;
  box-shadow: 0 14px 34px rgba(29,142,255,0.22), 0 0 20px rgba(143,116,255,0.13);
}
.before-after {
  gap: 30px;
  margin: 34px 0 30px;
}
.before-box,
.after-box {
  padding: 28px;
  min-height: 148px;
  background: linear-gradient(145deg, rgba(255,255,255,.86), rgba(241,248,255,.72));
}
.before-box h3,
.after-box h3 { font-size: 24px; margin: 10px 0 8px; }
.before-box p,
.after-box p { font-size: 16.5px; line-height: 1.7; }
.switch-flow { gap: 8px; padding: 0 2px; }
.switch-flow span { width: 10px; height: 10px; box-shadow: 0 0 18px rgba(14,130,245,.42); }
.asset-wide .media-frame { padding: 12px; }
.asset-wide .media-frame img,
.asset-wide .media-frame video { max-height: 620px; }
.asset-wide .asset-caption { padding: 17px 20px 20px; }

.architecture-panel {
  position: relative;
  overflow: hidden;
  grid-template-columns: 350px 1fr;
  gap: 28px;
  padding: 30px;
  margin-top: 26px;
  border-radius: 30px;
}
.architecture-panel::before {
  content: "";
  position: absolute;
  inset: -90px -80px auto auto;
  width: 340px;
  height: 340px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(143,116,255,.16), transparent 66%);
  pointer-events: none;
}
.architecture-panel::after {
  content: "";
  position: absolute;
  left: 28px;
  right: 28px;
  bottom: 0;
  height: 4px;
  border-radius: 999px 999px 0 0;
  background: linear-gradient(90deg, rgba(14,130,245,.28), rgba(79,195,255,.34), rgba(143,116,255,.28));
}
.arch-left { gap: 12px; position: relative; z-index: 1; }
.arch-node {
  padding: 18px 20px;
  font-size: 16px;
  border-radius: 20px;
  box-shadow: 0 12px 32px rgba(41, 92, 151, 0.09), inset 0 1px 0 rgba(255,255,255,.78);
}
.shared-node {
  background: linear-gradient(135deg, rgba(213, 241, 255, .96), rgba(240, 235, 255, .94));
  box-shadow: 0 18px 44px rgba(79, 156, 230, 0.16), 0 0 28px rgba(143,116,255,.10);
}
.arch-arrow,
.flow-arrow { height: 34px; box-shadow: 0 0 18px rgba(14,130,245,.25); }
.channel-group { gap: 18px; position: relative; z-index: 1; }
.channel-card {
  padding: 26px 24px;
  border-radius: 24px;
  background: linear-gradient(145deg, rgba(255,255,255,.82), rgba(241,248,255,.68));
  min-height: 190px;
}
.channel-card span { font-size: 15px; }
.channel-card h3 { font-size: 23px; margin-top: 12px; }
.channel-card p { font-size: 16px; line-height: 1.7; }
.channel-card::before { height: 5px; inset: auto 16px 0; }

.semantic-section::before {
  content: "";
  position: absolute;
  inset: 70px -120px auto auto;
  width: 540px;
  height: 360px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(143,116,255,.13), transparent 66%);
  pointer-events: none;
}
.semantic-showcase {
  position: relative;
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 18px;
  padding: 18px;
  border-radius: 32px;
  background: linear-gradient(145deg, rgba(255,255,255,.84), rgba(242,249,255,.68));
  border: 1px solid rgba(93, 139, 192, 0.24);
  box-shadow: var(--shadow-float);
  overflow: hidden;
  backdrop-filter: none;
}
.semantic-showcase::before {
  content: "";
  position: absolute;
  width: 360px;
  height: 360px;
  right: -120px;
  top: -150px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(79,195,255,.18), transparent 66%);
  pointer-events: none;
}
.semantic-copy-card {
  position: relative;
  z-index: 1;
  padding: 26px;
  border-radius: 24px;
  border: 1px solid var(--line);
}
.mini-label {
  display: inline-flex;
  padding: 7px 11px;
  border-radius: 999px;
  color: #5a4cc4;
  font-weight: 900;
  background: rgba(240, 236, 255, .85);
  border: 1px solid rgba(143,116,255,.20);
}
.semantic-copy-card h3 { margin: 16px 0 8px; color: var(--heading); font-size: 25px; }
.semantic-copy-card p { font-size: 16.5px; line-height: 1.78; }
.semantic-showcase .flow-visual {
  position: relative;
  z-index: 1;
  padding: 24px;
  box-shadow: none;
  background: linear-gradient(145deg, rgba(255,255,255,.72), rgba(240,247,255,.58));
}
.flow-visual { border-radius: 24px; }
.flow-row {
  grid-template-columns: 92px repeat(8, minmax(62px, 1fr));
  gap: 9px;
}
.flow-row b,
.flow-row span {
  padding: 13px 12px;
  border-radius: 16px;
  font-weight: 800;
  box-shadow: 0 8px 20px rgba(46, 94, 151, 0.07), inset 0 1px 0 rgba(255,255,255,.78);
}
.flow-row b { color: #143a5e; background: rgba(255,255,255,.88); }
.semantic-flow span {
  color: #5644c8;
  background: linear-gradient(145deg, rgba(243,240,255,.92), rgba(255,255,255,.76));
  border-color: rgba(143,116,255,.22);
}
.acoustic-flow span {
  color: #027f9a;
  background: linear-gradient(145deg, rgba(226,248,255,.94), rgba(255,255,255,.76));
  border-color: rgba(18,183,200,.22);
}
.control-flow span {
  color: #9a6500;
  background: linear-gradient(145deg, rgba(255,246,226,.95), rgba(255,255,255,.76));
  border-color: rgba(240,166,43,.22);
}
.semantic-compare {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
  margin-top: 22px;
}
.semantic-compare article {
  padding: 24px;
  border-radius: 24px;
  border: 1px solid var(--line);
}
.semantic-compare span { color: #6a7c90; font-weight: 900; }
.semantic-compare h3 { margin: 10px 0 8px; color: var(--heading); font-size: 22px; }
.semantic-compare p { margin: 0; font-size: 16px; }
.semantic-compare .semantic-strong {
  border-color: rgba(14,130,245,.28);
  background: linear-gradient(145deg, rgba(234,248,255,.86), rgba(247,243,255,.72));
}
.center-note { margin-top: 22px; }

.asset-card { border-radius: 26px; }
.asset-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-float); }
.media-frame { background: linear-gradient(145deg, rgba(235,247,255,.88), rgba(255,255,255,.62)); }
.media-frame img,
.media-frame video { box-shadow: 0 10px 30px rgba(35, 82, 139, 0.08); }
.asset-caption h3 { font-size: 21px; }
.dialogue-line { background: rgba(255,255,255,.82); box-shadow: 0 7px 18px rgba(48, 95, 154, 0.055); }
.embodied-section::before {
  content: "";
  position: absolute;
  inset: 90px auto auto -160px;
  width: 460px;
  height: 420px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(143,116,255,.13), transparent 68%);
  pointer-events: none;
}

@media (max-width: 980px) {
  .hero { min-height: auto; }
  .architecture-panel,
  .semantic-showcase { grid-template-columns: 1fr; }
  .hero-metrics,
  .semantic-compare { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .flow-row { grid-template-columns: 1fr repeat(4, minmax(60px, 1fr)); }
  .flow-row span:nth-of-type(n+5) { display: none; }
}

@media (max-width: 620px) {
  .hero-metrics,
  .semantic-compare { grid-template-columns: 1fr; }
  .hero-video .media-frame img,
  .hero-video .media-frame video { max-height: 260px; }
  .flow-row { grid-template-columns: 1fr; }
  .flow-row span:nth-of-type(n+5) { display: block; }
}

/* ===== 2026-07 结构升级：左侧导航 / 指标弹窗 / 轻量滚动进度 ===== */

.side-nav-shell {
  position: fixed;
  left: clamp(14px, 2.2vw, 30px);
  top: 50%;
  z-index: 32;
  transform: translateY(-50%);
}
.side-nav-card {
  width: 132px;
  padding: 12px;
  border: 1px solid rgba(116, 156, 205, 0.26);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.74);
  box-shadow: 0 18px 48px rgba(36, 83, 139, 0.13), inset 0 1px 0 rgba(255,255,255,0.74);
  backdrop-filter: none;
}
.side-nav-kicker {
  display: block;
  margin: 2px 8px 8px;
  color: #6c7f95;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .18em;
}
.side-nav {
  display: grid;
  gap: 4px;
  justify-content: stretch;
}
.side-nav a {
  display: flex;
  align-items: center;
  min-height: 34px;
  padding: 8px 10px;
  border-radius: 14px;
  font-size: 13px;
  font-weight: 800;
}
.side-nav a.active,
.side-nav a:hover {
  color: #075dad;
  background: linear-gradient(135deg, rgba(224, 245, 255, .92), rgba(247, 244, 255, .76));
}
.side-nav a.active::after { display: none; }

.hero-metrics {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  max-width: none;
  gap: 12px;
}
.hero-metrics .metric-card {
  min-height: 112px;
  padding: 16px 15px;
}
.hero-metrics .metric-card strong {
  font-size: clamp(27px, 3vw, 40px);
}
.hero-metrics .metric-card p {
  font-size: 14px;
}
.metric-card-action {
  cursor: pointer;
  outline: none;
}
.metric-card-action:focus-visible {
  border-color: rgba(14, 130, 245, .54);
  box-shadow: 0 0 0 4px rgba(79, 195, 255, .14), var(--shadow);
}
.metric-card-action:hover {
  transform: translateY(-3px);
  border-color: rgba(29, 142, 255, .32);
}
.metric-card-action::before {
  opacity: .82;
}

.technology-section {
  padding-top: 98px;
}
.tech-subsection {
  position: relative;
  display: grid;
  gap: 22px;
  margin-top: 38px;
  scroll-margin-top: 92px;
}
.tech-subhead {
  max-width: 860px;
}
.tech-subhead span {
  display: inline-flex;
  margin-bottom: 10px;
  padding: 7px 11px;
  border: 1px solid rgba(29, 142, 255, .18);
  border-radius: 999px;
  color: #126eb8;
  background: rgba(229, 246, 255, .68);
  font-weight: 900;
  font-size: 13px;
}
.tech-subhead h3 {
  margin: 0;
  color: var(--heading);
  font-size: clamp(24px, 3.2vw, 40px);
  line-height: 1.14;
  letter-spacing: -0.8px;
}
.tech-subhead p {
  margin: 12px 0 0;
  font-size: 16.5px;
}
.technology-section .semantic-section::before {
  inset: 60px -120px auto auto;
}
.technology-section .highlight-grid {
  margin-top: 0;
}


/* 性能保护：保留玻璃观感，但避免大面积卡片全部启用 backdrop-filter。 */
.video-card,
.compare-card,
.challenge-card,
.root-card,
.architecture-panel,
.flow-visual,
.highlight-card,
.metric-card,
.asset-card,
.signal-card,
.before-box,
.after-box,
.embodied-flow,
.semantic-copy-card,
.semantic-compare article {
  backdrop-filter: none;
}

@media (max-width: 1280px) {
  .side-nav-shell { display: none; }
    }

@media (max-width: 980px) {
  .hero-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    }

@media (max-width: 620px) {
  .hero-metrics { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .switch-flow span,
  .micro-wave span {
    animation: none !important;
  }
  .reveal {
    transition: none !important;
  }
}

/* ===== 首页首屏宣传视频 Hero Card：手动播放，避免首屏持续解码 ===== */
.hero-promo-card {
  position: relative;
  padding: 16px;
  border-radius: 32px;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 0%, rgba(79,195,255,.16), transparent 32%),
    radial-gradient(circle at 100% 12%, rgba(143,116,255,.13), transparent 34%),
    linear-gradient(145deg, rgba(255,255,255,.90), rgba(240,248,255,.76));
  border: 1px solid rgba(112, 156, 207, .30);
  box-shadow: 0 28px 82px rgba(34, 78, 132, .18), inset 0 1px 0 rgba(255,255,255,.88);
}
.hero-promo-card::after {
  content: "";
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 0;
  height: 3px;
  border-radius: 999px 999px 0 0;
  background: linear-gradient(90deg, rgba(14,130,245,.35), rgba(79,195,255,.34), rgba(143,116,255,.25));
  pointer-events: none;
}
.hero-promo-topline {
  position: relative;
  z-index: 1;
  min-height: 34px;
  display: flex;
  align-items: center;
  gap: 9px;
  color: #2b5979;
  font-size: 14px;
  font-weight: 900;
  margin-bottom: 12px;
}
.hero-promo-topline em {
  margin-left: auto;
  color: #7a8da3;
  font-size: 12px;
  font-style: normal;
  font-weight: 900;
  letter-spacing: .04em;
}
.hero-record-dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: linear-gradient(135deg, #ff6f91, #ff8ea8);
  box-shadow: 0 0 0 6px rgba(255, 111, 145, .13);
}
.hero-promo-screen {
  position: relative;
  aspect-ratio: 16 / 9;
  min-height: 292px;
  overflow: hidden;
  border-radius: 25px;
  border: 1px solid rgba(92, 153, 220, .24);
  background:
    linear-gradient(rgba(78,147,220,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(78,147,220,.055) 1px, transparent 1px),
    radial-gradient(circle at 24% 18%, rgba(79,195,255,.22), transparent 32%),
    radial-gradient(circle at 82% 12%, rgba(143,116,255,.18), transparent 34%),
    linear-gradient(145deg, rgba(232,247,255,.96), rgba(255,255,255,.78));
  background-size: 34px 34px, 34px 34px, auto, auto, auto;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.86), inset 0 -18px 46px rgba(31, 93, 154, .05), 0 14px 34px rgba(33, 87, 148, .10);
}
.hero-promo-screen video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity .2s ease;
  background: #eef7ff;
}
.hero-promo-screen.is-ready video {
  opacity: 1;
}
.hero-promo-screen.is-unavailable video,
.hero-promo-screen.no-video-source video {
  display: none;
}
.hero-promo-placeholder {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 8px;
  padding: 34px 24px 78px;
  text-align: center;
  transition: opacity .18s ease;
}
.hero-promo-screen.is-ready .hero-promo-placeholder {
  opacity: 0;
  pointer-events: none;
}
.hero-promo-gridmark {
  width: 88px;
  height: 88px;
  border-radius: 28px;
  border: 1px solid rgba(79, 148, 223, .20);
  background:
    linear-gradient(135deg, rgba(255,255,255,.88), rgba(229,246,255,.70)),
    radial-gradient(circle, rgba(14,130,245,.18), transparent 64%);
  box-shadow: 0 18px 44px rgba(29,142,255,.13), inset 0 1px 0 rgba(255,255,255,.92);
}
.hero-promo-placeholder strong {
  color: #0b63ae;
  font-size: 18px;
  letter-spacing: .02em;
}
.hero-promo-placeholder p {
  max-width: 360px;
  margin: 0;
  color: #61758c;
  font-size: 13.5px;
  line-height: 1.55;
}
.hero-promo-main-play {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 3;
  width: 72px;
  height: 72px;
  border: 0;
  border-radius: 999px;
  display: grid;
  place-items: center;
  cursor: pointer;
  transform: translate(-50%, -50%);
  background: linear-gradient(135deg, rgba(14,130,245,.90), rgba(79,195,255,.88), rgba(143,116,255,.78));
  box-shadow: 0 18px 46px rgba(14,130,245,.25), 0 0 28px rgba(143,116,255,.16);
  transition: transform .18s ease, opacity .18s ease;
}
.hero-promo-main-play span,
.hero-control-play span {
  width: 0;
  height: 0;
  margin-left: 4px;
  border-top: 11px solid transparent;
  border-bottom: 11px solid transparent;
  border-left: 17px solid #fff;
}
.hero-promo-main-play:hover {
  transform: translate(-50%, -50%) scale(1.035);
}
.hero-promo-screen.is-playing .hero-promo-main-play {
  opacity: .16;
}
.hero-promo-screen.is-playing .hero-promo-main-play:hover {
  opacity: .88;
}
.hero-promo-controlbar {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  z-index: 4;
  min-height: 40px;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,.76);
  border: 1px solid rgba(116,156,205,.20);
  box-shadow: 0 10px 28px rgba(32, 78, 132, .08), inset 0 1px 0 rgba(255,255,255,.82);
}
.hero-control-btn {
  min-width: 34px;
  height: 28px;
  border: 0;
  border-radius: 999px;
  display: inline-grid;
  place-items: center;
  padding: 0 9px;
  color: #146db9;
  background: rgba(226,244,255,.72);
  font-size: 11px;
  font-weight: 900;
  cursor: pointer;
}
.hero-control-btn:disabled {
  cursor: default;
  opacity: .48;
}
.hero-control-play {
  min-width: 30px;
  width: 30px;
  padding: 0;
  background: linear-gradient(135deg, var(--ice), var(--ice-2));
}
.hero-control-play span {
  margin-left: 3px;
  border-top-width: 6px;
  border-bottom-width: 6px;
  border-left-width: 9px;
}
.hero-promo-time {
  color: #5c7088;
  font-size: 11.5px;
  font-weight: 900;
  white-space: nowrap;
}
.hero-promo-progress {
  position: relative;
  flex: 1;
  height: 5px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(102, 148, 198, .18);
  transform: translateZ(0);
}
.hero-promo-progress i {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  transform: scaleX(0);
  transform-origin: left center;
  background: linear-gradient(90deg, var(--ice), var(--ice-2), var(--lavender));
}
.hero-promo-copy {
  position: relative;
  z-index: 1;
  padding: 18px 6px 5px;
}
.hero-promo-copy h3 {
  margin: 0;
  color: var(--heading);
  font-size: clamp(24px, 2.55vw, 34px);
  line-height: 1.13;
  letter-spacing: -0.6px;
}
.hero-promo-copy p {
  margin: 10px 0 0;
  color: #496176;
  font-size: 15.5px;
  line-height: 1.68;
}
.hero-promo-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}
.hero-promo-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 7px 11px;
  border-radius: 999px;
  color: #105f9f;
  background: linear-gradient(135deg, rgba(231, 246, 255, 0.86), rgba(247, 244, 255, 0.66));
  border: 1px solid rgba(29, 142, 255, 0.18);
  font-size: 13px;
  font-weight: 850;
}
.hero-promo-screen.is-autoplay-blocked .hero-promo-main-play {
  opacity: .94;
}

@media (max-width: 980px) {
  .hero-promo-screen {
    min-height: 260px;
  }
  .hero-promo-card {
    max-width: 680px;
    margin: 0 auto;
  }
}

@media (max-width: 620px) {
  .hero-promo-card {
    padding: 12px;
    border-radius: 26px;
  }
  .hero-promo-topline {
    font-size: 13px;
  }
  .hero-promo-topline em {
    display: none;
  }
  .hero-promo-screen {
    min-height: 210px;
    border-radius: 20px;
  }
  .hero-promo-main-play {
    width: 60px;
    height: 60px;
  }
  .hero-promo-controlbar {
    left: 10px;
    right: 10px;
    bottom: 10px;
    gap: 6px;
  }
  .hero-control-btn[data-hero-promo-fullscreen] {
    display: none;
  }
  .hero-promo-copy h3 {
    font-size: 22px;
  }
}

/* ===== 当前静态官网 Hero：左文案 + 右宣传视频 + 指标卡片 ===== */
.hero-static.section {
  display: block !important;
  width: min(var(--max), calc(100% - 36px));
  max-width: var(--max);
  min-height: calc(100vh - 16px);
  margin: 0 auto;
  padding: clamp(28px, 5vh, 56px) 0 clamp(44px, 6vh, 76px);
  align-content: initial !important;
}

.hero-layout {
  position: relative;
  min-height: min(820px, calc(100vh - 60px));
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(460px, 0.96fr);
  grid-template-areas:
    "copy video"
    "metrics metrics";
  gap: clamp(24px, 3.6vw, 54px);
  align-items: center;
}

.hero-static .hero-copy {
  grid-area: copy;
  position: relative;
  z-index: 2;
  padding-top: 0;
}

.hero-static .hero-stage {
  grid-area: video;
  position: relative;
  z-index: 2;
  transform: none !important;
  contain: layout paint;
}

.hero-static .hero-metrics {
  grid-area: metrics;
  max-width: none;
  margin-top: clamp(16px, 2vh, 26px);
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(14px, 1.9vw, 22px);
}

.hero-static .eyebrow {
  margin-bottom: 18px;
}

.hero-static h1 {
  margin-top: 0;
  font-size: clamp(78px, 8.2vw, 132px);
  line-height: .86;
}

.hero-static .hero-slogan {
  margin-top: 18px;
  font-size: clamp(34px, 4.2vw, 58px);
  line-height: 1.02;
}

.hero-static .hero-desc {
  max-width: 710px;
  margin-top: 22px;
  font-size: clamp(17px, 1.35vw, 20px);
  line-height: 1.85;
}

.hero-static .hero-actions {
  margin-top: 30px;
}

.hero-static .capability-pills {
  margin-top: 22px;
}

.hero-static .hero-promo-card {
  padding: clamp(16px, 1.45vw, 22px);
  border-radius: 36px;
  background:
    radial-gradient(circle at 16% 0%, rgba(79,195,255,.12), transparent 34%),
    radial-gradient(circle at 96% 10%, rgba(143,116,255,.10), transparent 36%),
    linear-gradient(145deg, rgba(255,255,255,.94), rgba(243,250,255,.82));
  border: 1px solid rgba(104, 150, 205, .30);
  box-shadow: 0 22px 58px rgba(34, 78, 132, .13), inset 0 1px 0 rgba(255,255,255,.88);
}

.hero-static .hero-promo-screen {
  aspect-ratio: 16 / 9;
  min-height: 0;
  border-radius: 28px;
  background:
    linear-gradient(rgba(78,147,220,.042) 1px, transparent 1px),
    linear-gradient(90deg, rgba(78,147,220,.042) 1px, transparent 1px),
    radial-gradient(circle at 28% 16%, rgba(79,195,255,.16), transparent 31%),
    radial-gradient(circle at 78% 14%, rgba(143,116,255,.12), transparent 34%),
    linear-gradient(145deg, rgba(233,248,255,.96), rgba(255,255,255,.82));
  background-size: 44px 44px, 44px 44px, auto, auto, auto;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.86), inset 0 -12px 32px rgba(31,93,154,.04), 0 10px 28px rgba(33,87,148,.075);
}

.hero-static .hero-promo-screen video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}

.hero-static .hero-promo-controlbar,
.hero-static .hero-promo-sound-toggle,
.hero-static .hero-promo-status {
  display: none !important;
}

.hero-static .hero-promo-main-play {
  width: 70px;
  height: 70px;
  box-shadow: 0 14px 34px rgba(14,130,245,.18), 0 0 20px rgba(143,116,255,.10);
}

.hero-static .hero-promo-screen.is-ready.is-playing .hero-promo-main-play {
  opacity: 0;
  pointer-events: none;
}

.hero-static .hero-promo-screen.is-autoplay-blocked .hero-promo-main-play,
.hero-static .hero-promo-screen.is-paused .hero-promo-main-play {
  opacity: .92;
  pointer-events: auto;
}

.hero-static .hero-promo-screen.no-video-source .hero-promo-main-play,
.hero-static .hero-promo-screen.is-unavailable .hero-promo-main-play {
  display: none;
}

.hero-static .hero-promo-copy {
  display: block;
  padding: 20px 6px 4px;
}

.hero-static .hero-promo-copy h3 {
  font-size: clamp(27px, 2.25vw, 38px);
  line-height: 1.12;
}

.hero-static .hero-promo-copy p {
  max-width: 620px;
  font-size: 16px;
  line-height: 1.65;
}

.hero-static .hero-metrics .metric-card {
  min-height: 128px;
  padding: 22px;
  border-radius: 26px;
  background: rgba(255,255,255,.84);
  box-shadow: 0 12px 32px rgba(34, 78, 132, .08), inset 0 1px 0 rgba(255,255,255,.82);
  backdrop-filter: none !important;
}

.hero-static .hero-metrics .metric-card::before {
  opacity: .48;
}

.hero-static .hero-metrics .metric-card::after {
  height: 2px;
  opacity: .38;
}

.hero-static .hero-metrics .metric-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 38px rgba(34, 78, 132, .10);
}

.hero-static .hero-metrics .metric-card strong {
  font-size: clamp(38px, 4.2vw, 56px);
}

@media (max-width: 980px) {
  .hero-static.section {
    min-height: auto;
    padding: 48px 0 64px;
  }

  .hero-layout {
    min-height: auto;
    grid-template-columns: 1fr;
    grid-template-areas:
      "copy"
      "video"
      "metrics";
  }

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

  .hero-static .hero-promo-card {
    max-width: 760px;
    margin: 0 auto;
  }
}

@media (max-width: 620px) {
  .hero-static.section {
    width: min(100% - 24px, var(--max));
    padding-top: 38px;
  }

  .hero-static .hero-metrics {
    grid-template-columns: 1fr;
  }

  .hero-static h1 {
    font-size: clamp(58px, 18vw, 82px);
  }

  .hero-static .hero-slogan {
    font-size: 30px;
  }
}

/* ===== 性能版：竖向大视频 Demo 展示 + 低成本滚动 ===== */
.section:not(.hero) {
  scroll-margin-top: 32px;
}

.side-nav-card {
  backdrop-filter: none;
  box-shadow: 0 12px 34px rgba(36, 83, 139, 0.10), inset 0 1px 0 rgba(255,255,255,0.72);
}

.lightbox-backdrop,

.metric-card,
.asset-card,
.compare-card,
.challenge-card,
.root-card,
.highlight-card,
.signal-card,
.architecture-panel,
.flow-visual,
.before-box,
.after-box,
.embodied-flow,
.semantic-copy-card,
.semantic-compare article {
  box-shadow: 0 12px 34px rgba(31, 74, 128, 0.085);
  backdrop-filter: none !important;
}

.metric-card:hover,
.asset-card:hover,
.demo-video-card:hover,
.primary-btn:hover,
.ghost-btn:hover {
  transform: translateY(-2px);
}

.hero-static .hero-promo-fullscreen {
  position: absolute;
  right: 14px;
  top: 14px;
  z-index: 5;
  min-height: 32px;
  padding: 0 13px;
  border: 1px solid rgba(116,156,205,.24);
  border-radius: 999px;
  color: #1768a8;
  background: rgba(255,255,255,.78);
  font-size: 12px;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(34, 78, 132, .07);
}

.hero-promo-screen:fullscreen,
.hero-promo-screen.is-fullscreen,
.hero-promo-screen:-webkit-full-screen {
  width: 100vw;
  height: 100vh;
  aspect-ratio: auto;
  border-radius: 0;
  background: #eef7ff;
}

.hero-promo-screen:fullscreen video,
.hero-promo-screen.is-fullscreen video,
.hero-promo-screen:-webkit-full-screen video {
  object-fit: contain;
  background: #eef7ff;
}

@media (max-width: 980px) {
  .demo-section { width: min(100% - 28px, 1080px); }
  .demo-video-card { border-radius: 28px; }
}

@media (max-width: 620px) {
  .demo-section { width: min(100% - 22px, 1080px); }
  .demo-video-card { padding: 16px; border-radius: 24px; gap: 14px; }
  .demo-video-card h3 { font-size: 23px; }
  .lychee-video-player { border-radius: 20px; }
  .hero-static .hero-promo-fullscreen { display: none; }
}


/* ===== v21 修复：Demo 区背景衔接 + 轻量大视频卡片 ===== */
.demo-section {
  background: transparent !important;
}

.demo-section {
  z-index: 0;
  width: min(1080px, calc(100% - 36px));
  padding-top: clamp(64px, 7vw, 84px);
  padding-bottom: clamp(76px, 8vw, 104px);
}

.demo-section::before {
  content: "";
  position: absolute;
  inset: 18px -4vw auto -4vw;
  height: 300px;
  pointer-events: none;
  z-index: 0;
  background: linear-gradient(180deg, rgba(224, 243, 255, .34), rgba(239, 247, 255, .12), transparent);
  border-radius: 42px;
}

.demo-section .section-head,
.demo-section .demo-list {
  position: relative;
  z-index: 1;
}

.demo-section .section-head {
  max-width: 820px;
  margin-bottom: clamp(22px, 3.2vw, 38px);
  padding: 0;
  background: transparent !important;
  border: 0 !important;
  box-shadow: none !important;
}

.demo-section .section-head p:last-child {
  max-width: 760px;
  margin-bottom: 0;
}

.demo-list,
.demo-grid {
  display: grid;
  gap: clamp(34px, 5vw, 58px);
}

.demo-video-card {
  position: relative;
  display: grid;
  gap: 14px;
  padding: clamp(18px, 2.4vw, 28px);
  border-radius: 28px;
  background: linear-gradient(145deg, rgba(250, 253, 255, .86), rgba(235, 247, 255, .54));
  border: 1px solid rgba(95, 143, 196, .22);
  box-shadow: 0 10px 28px rgba(33, 78, 132, .075);
  overflow: hidden;
  transform: none;
  transition: border-color .16s ease, transform .16s ease;
  backdrop-filter: none !important;
}

.demo-video-card::before,
.demo-video-card::after {
  display: none !important;
}

.demo-video-card:hover {
  transform: translateY(-1px);
  border-color: rgba(54, 129, 219, .24);
  box-shadow: 0 10px 28px rgba(33, 78, 132, .075);
}

.demo-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.demo-index,
.demo-scene {
  min-height: 28px;
  padding: 6px 10px;
  box-shadow: none !important;
}

.demo-video-card h3 {
  margin: 0;
  color: var(--heading);
  font-size: clamp(25px, 3vw, 38px);
  line-height: 1.12;
  letter-spacing: -0.7px;
}

.demo-subtitle {
  max-width: 800px;
  margin: -2px 0 0;
  color: #4d637b;
  font-size: clamp(15.5px, 1.35vw, 17px);
  line-height: 1.72;
}

.demo-video-slot {
  margin-top: 2px;
}

.lychee-video-player {
  position: relative;
  overflow: hidden;
  border-radius: 22px;
  border: 1px solid rgba(95, 143, 196, .20);
  background: #edf6ff;
  box-shadow: none !important;
  aspect-ratio: 16 / 9;
}

.lychee-video-player video {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  background: #edf6ff;
}

.video-fallback {
  position: absolute;
  inset: 0;
  display: none;
  place-items: center;
  align-content: center;
  gap: 7px;
  padding: 22px;
  text-align: center;
  background: rgba(240, 248, 255, .96);
}

.lychee-video-player.is-placeholder .video-fallback,
.video-fallback.is-visible {
  display: grid;
}

.video-fallback strong {
  color: #0c5eaa;
  font-size: clamp(17px, 1.8vw, 22px);
}

.video-fallback p {
  max-width: 620px;
  margin: 0;
  color: #61758c;
  font-size: 13.5px;
  word-break: break-word;
}

.demo-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 2px;
}

.demo-highlight {
  max-width: 800px;
  margin: 0;
  color: #41627e;
  font-size: 14.5px;
  line-height: 1.62;
}

.side-nav-card {
  backdrop-filter: none !important;
}

@media (max-width: 760px) {
  .demo-section {
    width: min(100% - 24px, 1080px);
    padding-top: 58px;
  }

  .demo-video-card {
    padding: 16px;
    border-radius: 22px;
  }

  .demo-card-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .lychee-video-player {
    border-radius: 18px;
  }
}

/* ===== v22：poster 叙事主线 + Demo 轻量性能修复 ===== */
.concept-section,
.background-section,
.challenge-section,
.solution-section,
.results-section,
.embodied-section,
.demo-section {
  background: transparent !important;
}

.concept-section::before,
.background-section::before,
.challenge-section::before,
.solution-section::before,
.results-section::before,
.demo-section::before {
  display: none !important;
}

.concept-section,
.background-section,
.challenge-section,
.solution-section,
.results-section {
  padding-top: clamp(72px, 8vw, 106px);
  padding-bottom: clamp(72px, 8vw, 106px);
}

.concept-section {
  margin-top: -18px;
}

.duplex-explain-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.solution-section .highlight-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
  align-items: stretch;
}

.solution-section .highlight-card {
  min-height: 230px;
}

.results-section .section-head,
.demo-section .section-head {
  padding: 0 !important;
  background: transparent !important;
  border: 0 !important;
  box-shadow: none !important;
}

.results-section .metric-card strong {
  color: #0a65b5;
}

.semantic-lite {
  box-shadow: 0 10px 28px rgba(31, 74, 128, 0.075) !important;
}

.demo-section {
  width: min(1040px, calc(100% - 36px));
  padding-top: clamp(70px, 8vw, 98px);
  padding-bottom: clamp(82px, 8vw, 112px);
}

.demo-list {
  gap: clamp(30px, 4.2vw, 48px);
}

.demo-video-card {
  padding: clamp(16px, 2.1vw, 24px) !important;
  border-radius: 24px !important;
  background: rgba(248, 252, 255, 0.70) !important;
  border: 1px solid rgba(90, 139, 194, 0.20) !important;
  box-shadow: 0 8px 20px rgba(31, 74, 128, 0.065) !important;
  transition: border-color .16s ease !important;
  contain: layout paint;
}

.demo-video-card:hover {
  transform: none !important;
  border-color: rgba(54, 129, 219, 0.26) !important;
  box-shadow: 0 8px 20px rgba(31, 74, 128, 0.065) !important;
}

.demo-video-card h3 {
  font-size: clamp(24px, 2.8vw, 34px) !important;
}

.demo-subtitle {
  max-width: 780px;
}

.demo-video-slot,
.lychee-video-player,
.lychee-video-player video {
  transform: none !important;
  will-change: auto !important;
}

.lychee-video-player {
  border-radius: 18px !important;
  border: 1px solid rgba(95, 143, 196, 0.18) !important;
  background: #edf6ff !important;
  box-shadow: none !important;
}

.video-fallback {
  background: rgba(240, 248, 255, 0.94) !important;
}

.video-fallback strong {
  font-size: 18px;
}

.video-fallback p {
  font-size: 13px;
}

.compare-card,
.challenge-card,
.root-card,
.highlight-card,
.metric-card,
.asset-card,
.signal-card,
.architecture-panel,
.flow-visual,
.before-box,
.after-box,
.embodied-flow,
.semantic-copy-card,
.semantic-compare article {
  box-shadow: 0 10px 28px rgba(31, 74, 128, 0.075) !important;
  backdrop-filter: none !important;
}

.compare-card:hover,
.challenge-card:hover,
.root-card:hover,
.highlight-card:hover,
.metric-card:hover,
.before-box:hover,
.after-box:hover,
.channel-card:hover,
.signal-card:hover,
.embodied-flow:hover,
.asset-card:hover {
  transform: translateY(-1px) !important;
  box-shadow: 0 12px 30px rgba(31, 74, 128, 0.085) !important;
}

.asset-card,
.metric-card,
.highlight-card,
.compare-card,
.challenge-card,
.root-card,
.channel-card,
.demo-video-card {
  will-change: auto !important;
}

@media (max-width: 1180px) {
  .solution-section .highlight-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 980px) {
  .duplex-explain-grid,
  .solution-section .highlight-grid {
    grid-template-columns: 1fr;
  }

  .concept-section,
  .background-section,
  .challenge-section,
  .solution-section,
  .results-section {
    padding-top: 68px;
    padding-bottom: 68px;
  }
}

@media (max-width: 620px) {
  .demo-section {
    width: min(100% - 22px, 1040px);
  }

  .demo-video-card {
    border-radius: 20px !important;
  }
}

/* v22：中文长标题适配，避免 Hero 首屏文字过大造成压迫。 */
.hero-static h1 {
  max-width: 760px;
  font-size: clamp(42px, 5.7vw, 76px) !important;
  line-height: 1.08 !important;
  letter-spacing: -1.8px !important;
}

.hero-static .hero-slogan {
  font-size: clamp(28px, 3.7vw, 48px) !important;
  line-height: 1.12 !important;
}

/* ===== v23：五段目录 + 技术介绍合并 + Demo 点击后加载 ===== */
.technology-intro-section {
  padding-top: clamp(76px, 8vw, 108px);
  padding-bottom: clamp(76px, 8vw, 110px);
  background: transparent;
}

.technology-intro-section > .section-head {
  max-width: 880px;
  margin-bottom: clamp(34px, 4vw, 54px);
}

.tech-subsection {
  position: relative;
  padding: clamp(34px, 5vw, 64px) 0;
  scroll-margin-top: 36px;
}

.tech-subsection + .tech-subsection {
  border-top: 1px solid rgba(86, 135, 190, 0.14);
}

.science-section .asset-strip,
.science-section .root-grid,
.science-section .semantic-showcase {
  margin-top: clamp(22px, 3vw, 34px);
}

.hero-promo-screen.has-video-source .hero-promo-placeholder {
  opacity: 0;
  pointer-events: none;
}

.hero-promo-screen.is-poster-only video,
.hero-promo-screen.is-ready video {
  opacity: 1;
}

.hero-promo-screen.is-loading::after,
.lychee-video-player.is-loading::after {
  content: "正在加载视频…";
  position: absolute;
  right: 14px;
  bottom: 14px;
  z-index: 4;
  padding: 7px 10px;
  border-radius: 999px;
  color: #1768a8;
  background: rgba(255,255,255,.84);
  border: 1px solid rgba(116,156,205,.24);
  font-size: 12px;
  font-weight: 900;
  box-shadow: 0 8px 20px rgba(34, 78, 132, .07);
}


.lychee-video-player video[poster] {
  background: #edf6ff;
}

.results-section,
.embodied-section {
  content-visibility: auto;
  contain-intrinsic-size: 900px;
}

@media (max-width: 980px) {
  .tech-subsection {
    padding: 48px 0;
  }
}


/* 轻量窄屏目录：侧边目录隐藏时保留横向滚动导航，不引入重型特效。 */
.top-nav-shell {
  display: none;
}

@media (max-width: 1280px) {
  .top-nav-shell {
    position: sticky;
    top: 10px;
    z-index: 45;
    display: block;
    width: min(var(--max), calc(100% - 24px));
    margin: 10px auto 0;
    padding: 8px;
    border: 1px solid rgba(93, 139, 192, 0.20);
    border-radius: 999px;
    background: rgba(255,255,255,.86);
    box-shadow: 0 10px 28px rgba(31, 74, 128, 0.075);
  }

  .top-nav {
    flex-wrap: nowrap;
    justify-content: flex-start;
    gap: 4px;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .top-nav::-webkit-scrollbar {
    display: none;
  }

  .top-nav a {
    flex: 0 0 auto;
  }
}

/* ===== v24：局部微调 + 播放控件精修 + 继续减轻滚动负担 ===== */
/* 收紧“技术介绍 → 评测效果”的过渡，避免三层 padding 叠加造成大面积空白。 */
.technology-intro-section {
  padding-bottom: clamp(38px, 4.4vw, 58px) !important;
}

.technology-intro-section > .section-head {
  margin-bottom: clamp(24px, 3vw, 38px) !important;
}

.tech-subsection {
  padding-top: clamp(28px, 3.8vw, 48px) !important;
  padding-bottom: clamp(30px, 4vw, 50px) !important;
}

.tech-subsection + .tech-subsection {
  margin-top: 2px;
}

.solution-section.tech-subsection {
  padding-bottom: clamp(20px, 2.8vw, 34px) !important;
}

.technology-intro-section + .results-section,
.results-section {
  padding-top: clamp(42px, 5vw, 66px) !important;
}

.results-section .section-head {
  margin-bottom: clamp(18px, 2.5vw, 28px);
}

/* 去掉数字人区域左侧突兀紫色光斑，保留更轻、更统一的冰蓝氛围。 */
.embodied-section::before {
  display: none !important;
}

.embodied-flow {
  background: linear-gradient(145deg, rgba(244, 251, 255, .78), rgba(255, 255, 255, .70)) !important;
}

/* 继续降低滚动渲染成本：缩小大阴影和大面积渐变的参与度。 */
.hero-promo-card {
  box-shadow: 0 16px 42px rgba(34, 78, 132, .10), inset 0 1px 0 rgba(255,255,255,.88) !important;
}

.hero-promo-screen,
.lychee-video-player {
  contain: layout paint;
}

.asset-card:hover,
.metric-card:hover,
.compare-card:hover,
.challenge-card:hover,
.root-card:hover,
.highlight-card:hover,
.before-box:hover,
.after-box:hover,
.channel-card:hover,
.signal-card:hover,
.embodied-flow:hover {
  transform: none !important;
  box-shadow: 0 10px 26px rgba(31, 74, 128, .075) !important;
}

/* content-visibility 只放在非首屏、非视频主体区，避免 Demo 锚点与视频初始化出现奇怪跳动。 */
.results-section,
.embodied-section {
  contain-intrinsic-size: 760px !important;
}

@media (max-width: 980px) {
  .technology-intro-section {
    padding-bottom: 42px !important;
  }

  .tech-subsection {
    padding-top: 34px !important;
    padding-bottom: 38px !important;
  }

  .technology-intro-section + .results-section,
  .results-section {
    padding-top: 48px !important;
  }
}

@media (max-width: 620px) {
  .hero-promo-main-play,
  .hero-static .hero-promo-main-play {
    width: 54px !important;
    height: 54px !important;
  }

}

/* ===== v25：性能优先局部修复（取消卡片上浮、延迟视频节点、侧栏收敛） ===== */
/* 普通内容卡片不再 hover 上浮/缩放，只保留非常轻的边框/背景反馈。 */
:where(
  .metric-card,
  .asset-card,
  .compare-card,
  .challenge-card,
  .root-card,
  .highlight-card,
  .before-box,
  .after-box,
  .channel-card,
  .signal-card,
  .embodied-flow,
  .architecture-panel,
  .flow-visual,
  .semantic-copy-card,
  .semantic-compare article,
  .demo-video-card
) {
  transform: none !important;
  translate: none !important;
  scale: 1 !important;
  will-change: auto !important;
  transition: border-color .14s ease, background-color .14s ease, box-shadow .14s ease, color .14s ease !important;
}

:where(
  .metric-card,
  .asset-card,
  .compare-card,
  .challenge-card,
  .root-card,
  .highlight-card,
  .before-box,
  .after-box,
  .channel-card,
  .signal-card,
  .embodied-flow,
  .architecture-panel,
  .flow-visual,
  .semantic-copy-card,
  .semantic-compare article,
  .demo-video-card
):hover {
  transform: none !important;
  translate: none !important;
  scale: 1 !important;
  border-color: rgba(54, 129, 219, .24) !important;
  box-shadow: 0 8px 20px rgba(31, 74, 128, .062) !important;
}

/* 首页两个主 CTA 保留轻微反馈，其余卡片不再位移。 */
.primary-btn:hover,
.ghost-btn:hover {
  transform: translateY(-1px) !important;
}

/* 进入视口时不再做大面积 translate 动画，减少图文区突然合成/绘制压力。 */
.reveal,
.reveal.visible {
  transform: none !important;
}
.reveal {
  transition: opacity .24s ease !important;
}
.delay-1,
.delay-2,
.delay-3 {
  transition-delay: 0s !important;
}

/* Demo 与 Hero 视频：初始只绘制封面图，不创建多个 video 节点；点击后 video 绝对定位覆盖。 */
.hero-promo-poster,
.video-poster {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  background: #edf6ff;
  user-select: none;
  pointer-events: none;
}
.hero-promo-poster { z-index: 0; }
.video-poster { z-index: 1; object-fit: contain; }

.hero-promo-screen video,
.lychee-video-player video {
  position: absolute !important;
  inset: 0 !important;
  z-index: 2;
  width: 100% !important;
  height: 100% !important;
  transform: none !important;
  will-change: auto !important;
}
.lychee-video-player.is-ready .video-poster,
.lychee-video-player.is-playing .video-poster,
.hero-promo-screen.is-ready .hero-promo-poster,
.hero-promo-screen.is-playing .hero-promo-poster {
  opacity: 0;
}
.lychee-video-player,
.hero-promo-screen,
.media-frame {
  contain: layout paint;
}

/* 首页宣传视频按钮 hover 不再放大，避免触发视频区域大范围合成变化。 */
.hero-promo-main-play:hover {
  transform: translate(-50%, -50%) !important;
}
.hero-static .hero-promo-fullscreen:hover {
  transform: none !important;
}

/* 大图稳定尺寸与轻绘制：结合 JS/config 中的 width/height，避免图片进入视口时重新撑开布局。 */
.media-frame img {
  height: auto;
  box-shadow: none !important;
}
.asset-wide .media-frame img,
.asset-architecture .media-frame img,
.asset-chart .media-frame img,
.asset-technical .media-frame img {
  max-height: min(560px, 70vh) !important;
}
.root-asset-mount .media-frame img {
  max-height: 360px !important;
}

/* content-visibility 在本页内容量不大时反而容易造成进入视口瞬间绘制卡顿，本轮改为常规渲染。 */
.results-section,
.embodied-section {
  content-visibility: visible !important;
  contain-intrinsic-size: auto !important;
}

/* 左侧目录栏收敛：长标题省略，active 背景不越界，窄屏/DevTools 状态下直接交给顶部轻量导航。 */
.side-nav-shell,
.side-nav-card,
.side-nav,
.side-nav a {
  box-sizing: border-box;
}
.side-nav-shell {
  left: max(12px, env(safe-area-inset-left)) !important;
  max-width: 172px !important;
  overflow: hidden !important;
}
.side-nav-card {
  width: 158px !important;
  max-width: 158px !important;
  overflow: hidden !important;
  padding: 10px !important;
}
.side-nav {
  width: 100% !important;
  max-width: 100% !important;
  overflow: hidden !important;
}
.side-nav a {
  width: 100% !important;
  max-width: 100% !important;
  min-width: 0 !important;
  overflow: hidden !important;
  white-space: nowrap !important;
  text-overflow: ellipsis !important;
  padding: 8px 9px !important;
  border-radius: 12px !important;
}
.side-nav a.active,
.side-nav a:hover {
  background: rgba(224, 245, 255, .82) !important;
}

@media (max-width: 1360px) {
  .side-nav-shell { display: none !important; }
  .top-nav-shell {
    position: sticky;
    top: 10px;
    z-index: 45;
    display: block !important;
    width: min(var(--max), calc(100% - 24px));
    margin: 10px auto 0;
    padding: 8px;
    border: 1px solid rgba(93, 139, 192, 0.20);
    border-radius: 999px;
    background: rgba(255,255,255,.88);
    box-shadow: 0 8px 20px rgba(31, 74, 128, 0.065);
  }
  .top-nav {
    flex-wrap: nowrap;
    justify-content: flex-start;
    gap: 4px;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: none;
  }
  .top-nav::-webkit-scrollbar { display: none; }
  .top-nav a {
    flex: 0 0 auto;
    max-width: 190px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
  }
}

/* ===== v26：最终展示文案 + 首页视频简化 + Demo 对齐修复 ===== */
/* 首页视频卡片只保留视频入口本身，避免与首屏主标题重复抢重点。 */
.hero-promo-card-clean {
  padding: clamp(10px, 1.2vw, 14px) !important;
}
.hero-promo-card-clean::after,
.hero-promo-card-clean .hero-promo-topline,
.hero-promo-card-clean .hero-promo-copy {
  display: none !important;
}
.hero-promo-card-clean .hero-promo-screen {
  margin: 0 !important;
}
.hero-promo-placeholder {
  color: transparent !important;
}

/* 解决办法卡片改为 4 项后，网格同步收敛，避免右侧空列。 */
.solution-section .highlight-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr)) !important;
}
@media (max-width: 1080px) {
  .solution-section .highlight-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  }
}
@media (max-width: 680px) {
  .solution-section .highlight-grid {
    grid-template-columns: 1fr !important;
  }
}

/* Demo 区回归全站统一 section 宽度，修复独立 1040px 宽度导致的标题与卡片整体偏右。 */
.demo-section {
  width: min(var(--max), calc(100% - 36px)) !important;
  max-width: var(--max) !important;
  margin-left: auto !important;
  margin-right: auto !important;
  padding-left: 0 !important;
  padding-right: 0 !important;
}
.demo-section .section-head,
.demo-section .demo-list {
  width: 100% !important;
  margin-left: 0 !important;
  margin-right: 0 !important;
  padding-left: 0 !important;
  padding-right: 0 !important;
}
.demo-section .section-head {
  max-width: 820px !important;
}
.demo-list {
  max-width: none !important;
}
.demo-video-card {
  width: 100% !important;
}

/* 根因卡片标题较长时自然换行，不撑开卡片。 */
.root-header {
  flex-wrap: wrap;
}
.root-header span,
.root-header strong {
  min-width: 0;
}

/* ===== v33：Demo 封面播放按钮统一组件 + 去蒙版保持 ===== */
.hero-promo-main-play {
  border: 1px solid rgba(122, 170, 255, .32) !important;
  background: rgba(255, 255, 255, .62) !important;
  color: #245fae !important;
  box-shadow: 0 6px 18px rgba(55, 112, 210, .08), inset 0 1px 0 rgba(255, 255, 255, .72) !important;
  transition: background .14s ease, border-color .14s ease, opacity .14s ease !important;
  -webkit-tap-highlight-color: transparent;
}

.hero-promo-main-play::before,
.lychee-video-player.is-poster-only::before,
.lychee-video-player.is-poster-only::after {
  content: none !important;
  display: none !important;
  background: none !important;
  box-shadow: none !important;
  filter: none !important;
}

.hero-promo-main-play {
  width: 56px !important;
  height: 56px !important;
}

.hero-static .hero-promo-main-play {
  width: 56px !important;
  height: 56px !important;
}

.hero-promo-main-play span,
.hero-control-play span {
  margin-left: 3px !important;
  border-top-width: 8px !important;
  border-bottom-width: 8px !important;
  border-left-width: 12px !important;
  border-left-color: #245fae !important;
}

.hero-promo-main-play:hover {
  background: rgba(255, 255, 255, .78) !important;
  border-color: rgba(92, 145, 255, .44) !important;
  transform: translate(-50%, -50%) !important;
}

.hero-static .hero-promo-fullscreen {
  min-height: 30px !important;
  padding: 0 12px !important;
  color: #1768a8 !important;
  background: rgba(255, 255, 255, .80) !important;
  border-color: rgba(126, 171, 220, .28) !important;
  box-shadow: 0 6px 14px rgba(34, 78, 132, .05) !important;
  transition: background .14s ease, border-color .14s ease !important;
}

.hero-static .hero-promo-fullscreen:hover {
  transform: none !important;
  background: rgba(244, 251, 255, .90) !important;
  border-color: rgba(29, 142, 255, .34) !important;
}

.lychee-video-player {
  aspect-ratio: var(--demo-video-ratio, 16 / 9) !important;
  background: #f3f9ff !important;
  border-color: rgba(117, 164, 216, .20) !important;
  box-shadow: none !important;
}

.lychee-video-player video,
.lychee-video-player .video-poster {
  width: 100% !important;
  height: 100% !important;
  object-fit: var(--demo-video-fit, cover) !important;
  background: #f3f9ff !important;
  opacity: 1 !important;
  filter: none !important;
  mix-blend-mode: normal !important;
  transform: none !important;
}

.lychee-video-player.is-ready .video-poster,
.lychee-video-player.is-playing .video-poster {
  opacity: 0 !important;
  pointer-events: none !important;
}

.lychee-video-player {
  --play-button-size: 160px;
}

.video-play-button {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 4;
  width: var(--play-button-size);
  height: var(--play-button-size);
  padding: 0;
  border: 1px solid rgba(116, 170, 226, .34);
  border-radius: 50%;
  display: grid;
  place-items: center;
  cursor: pointer;
  transform: translate(-50%, -50%);
  background:
    radial-gradient(circle at 34% 24%, rgba(255,255,255,.96), rgba(255,255,255,.38) 34%, rgba(180,226,255,.20) 68%, rgba(109,176,233,.18) 100%),
    linear-gradient(145deg, rgba(255,255,255,.78), rgba(219,241,255,.54));
  box-shadow:
    0 18px 42px rgba(26, 93, 164, .18),
    0 0 0 1px rgba(255,255,255,.56) inset,
    0 18px 44px rgba(142, 196, 255, .16) inset;
  opacity: .96;
  transition: transform .16s ease, opacity .16s ease;
  -webkit-tap-highlight-color: transparent;
}

.video-play-button::before {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: inherit;
  background:
    radial-gradient(circle at 30% 18%, rgba(255,255,255,.88), rgba(255,255,255,.28) 34%, transparent 64%),
    linear-gradient(145deg, rgba(243,251,255,.62), rgba(180,222,255,.22));
  border: 1px solid rgba(255,255,255,.52);
}

.video-play-button::after {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: inherit;
  border: 1px solid rgba(247, 165, 74, .20);
  box-shadow: 0 0 28px rgba(42, 137, 232, .16);
}

.video-play-icon {
  position: relative;
  z-index: 1;
  width: 50px;
  height: 58px;
  margin-left: 10px;
  background: linear-gradient(135deg, #0b3f86, #0a6fbd);
  clip-path: polygon(0 0, 100% 50%, 0 100%);
}

.video-play-button:hover {
  transform: translate(-50%, -50%) scale(1.025);
  opacity: 1;
}

.video-play-button:focus-visible {
  outline: 3px solid rgba(47, 138, 232, .34);
  outline-offset: 5px;
}

.lychee-video-player.is-ready .video-play-button,
.lychee-video-player.is-playing .video-play-button,
.lychee-video-player.is-unavailable .video-play-button {
  opacity: 0;
  pointer-events: none;
}

.demo-subtitle {
  max-width: 840px;
}

.demo-highlight {
  max-width: 860px !important;
  color: #425f7a !important;
  font-size: 14.6px !important;
  line-height: 1.7 !important;
}

@media (max-width: 720px) {
  .demo-highlight {
    font-size: 14px !important;
    line-height: 1.68 !important;
  }
}

/* ===== v34：文本替换、数字人预留位、评测表格静态化 ===== */
.results-section .result-gallery {
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.4vw, 26px);
}

.results-section .asset-chart {
  border-radius: 30px;
  overflow: hidden;
  background: linear-gradient(145deg, rgba(255, 255, 255, .92), rgba(240, 248, 255, .78));
  border-color: rgba(112, 163, 216, .28);
  box-shadow: 0 26px 76px rgba(31, 92, 154, .09);
}

.results-section .asset-chart:hover {
  transform: none !important;
  border-color: rgba(112, 163, 216, .28) !important;
  box-shadow: 0 26px 76px rgba(31, 92, 154, .09) !important;
}

.results-section .asset-chart .media-frame {
  padding: clamp(8px, 1.4vw, 14px);
  background: linear-gradient(145deg, rgba(250, 253, 255, .96), rgba(236, 247, 255, .70));
  border-bottom: 0;
}

.results-section .asset-chart .media-frame img {
  width: 100%;
  max-height: none !important;
  border-radius: 24px;
  background: #f8fbff;
  box-shadow: none !important;
}

/* v37：数字人 / 机器人区域预留视频位升级为更大号、纵向阅读的正式视频展示卡。 */
.embodied-layout .asset-gallery {
  align-items: start;
}

.asset-reserved-video {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(500px, 48%) minmax(0, 1fr);
  min-height: 680px;
  overflow: hidden;
  border-radius: 34px;
  background: linear-gradient(145deg, rgba(255, 255, 255, .92), rgba(237, 248, 255, .68));
  border: 1px solid rgba(104, 153, 205, .26);
  box-shadow: 0 22px 62px rgba(31, 74, 128, .085);
  transition: border-color .16s ease, box-shadow .16s ease;
}

.asset-reserved-video:hover {
  transform: none !important;
  border-color: rgba(67, 138, 221, .30) !important;
  box-shadow: 0 24px 66px rgba(31, 74, 128, .10) !important;
}

.reserved-demo-media-frame {
  display: grid;
  align-items: stretch;
  justify-items: stretch;
  padding: clamp(14px, 1.6vw, 22px);
  background: linear-gradient(145deg, rgba(239, 248, 255, .88), rgba(255, 255, 255, .62));
  border-right: 1px solid rgba(187, 212, 236, .64);
  border-bottom: 0;
}

.reserved-demo-player {
  --demo-video-ratio: 9 / 16;
  --demo-video-fit: cover;
  width: 100%;
  height: 100%;
  min-height: 620px;
  max-height: none;
  aspect-ratio: auto !important;
  border-radius: 30px;
  border: 1px solid rgba(91, 142, 196, .24);
  background:
    radial-gradient(circle at 50% 18%, rgba(255, 255, 255, .86), transparent 32%),
    linear-gradient(155deg, rgba(223, 242, 255, .96), rgba(250, 253, 255, .96) 44%, rgba(232, 246, 255, .90));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .68) !important;
}

.avatar-demo-player video,
.avatar-demo-player .video-poster {
  object-fit: cover !important;
}

.asset-reserved-video .asset-caption {
  display: grid;
  align-content: center;
  padding: clamp(28px, 3.2vw, 42px);
}

.asset-reserved-video .asset-tags {
  margin-top: 0;
  gap: 10px;
}

.asset-reserved-video .asset-caption h3 {
  margin-top: 18px;
  margin-bottom: 10px;
  font-size: clamp(25px, 2.2vw, 32px);
  letter-spacing: -.5px;
}

.asset-reserved-video .asset-caption p {
  max-width: 560px;
  color: #587087;
  font-size: 16px;
  line-height: 1.75;
}

@media (max-width: 1040px) {
  .asset-reserved-video {
    grid-template-columns: minmax(420px, 48%) minmax(0, 1fr);
    min-height: 620px;
  }

  .reserved-demo-player {
    min-height: 560px;
  }
}

@media (max-width: 860px) {
  .asset-reserved-video {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .reserved-demo-media-frame {
    border-right: 0;
    border-bottom: 1px solid rgba(187, 212, 236, .64);
    min-height: 560px;
  }

  .reserved-demo-player {
    width: 100%;
    min-height: 520px;
  }
}

@media (max-width: 560px) {
  .reserved-demo-media-frame {
    min-height: 460px;
  }

  .reserved-demo-player {
    min-height: 420px;
  }

  .asset-reserved-video .asset-caption {
    padding: 24px;
  }
}

/* 保留用户当前偏好的暖橙玻璃播放按钮，同时保持低成本 CSS 绘制。 */
.video-play-button {
  border-color: rgba(245, 168, 72, .34);
  background: linear-gradient(145deg, rgba(255, 255, 255, .88) 0%, rgba(255, 238, 214, .74) 48%, rgba(255, 190, 112, .50) 100%);
  box-shadow: 0 14px 34px rgba(120, 80, 28, .16), inset 0 0 0 1px rgba(255, 255, 255, .62);
}

.video-play-button::before {
  inset: 14px;
  background: linear-gradient(145deg, rgba(255, 255, 255, .66), rgba(255, 210, 150, .22));
  border-color: rgba(255, 255, 255, .58);
}

.video-play-button::after {
  inset: -5px;
  border-color: rgba(244, 158, 42, .30);
  box-shadow: none;
}

.video-play-icon {
  background: linear-gradient(135deg, #12356f, #061f4d);
}

/* ===== v42：数字人视频位占满卡片主体区域（仅作用于最后数字人 / 机器人展示区） ===== */
.asset-reserved-video {
  position: relative;
  display: block;
  min-height: clamp(560px, 52vw, 740px);
  overflow: hidden;
}

.asset-reserved-video .reserved-demo-media-frame {
  position: absolute;
  inset: 0;
  display: block;
  padding: clamp(16px, 1.8vw, 24px);
  border-right: 0;
  border-bottom: 0;
  background: linear-gradient(145deg, rgba(239, 248, 255, .62), rgba(255, 255, 255, .38));
}

.asset-reserved-video .reserved-demo-player {
  width: 100%;
  height: 100%;
  min-height: 0;
  max-height: none;
  aspect-ratio: auto !important;
  border-radius: 30px;
}

.asset-reserved-video .asset-caption {
  position: absolute;
  right: clamp(30px, 4vw, 70px);
  top: 50%;
  z-index: 6;
  width: min(430px, 38%);
  transform: translateY(-50%);
  padding: clamp(22px, 2.4vw, 34px);
  border-radius: 28px;
  background: linear-gradient(145deg, rgba(255, 255, 255, .88), rgba(240, 248, 255, .72));
  border: 1px solid rgba(145, 188, 232, .28);
  box-shadow: 0 20px 54px rgba(31, 74, 128, .10);
}

.asset-reserved-video .asset-tags {
  margin-top: 0;
}

@media (max-width: 860px) {
  .asset-reserved-video {
    min-height: 660px;
  }

  .asset-reserved-video .reserved-demo-media-frame {
    padding: 14px;
  }

  .asset-reserved-video .asset-caption {
    left: 28px;
    right: 28px;
    top: auto;
    bottom: 28px;
    width: auto;
    transform: none;
  }
}

@media (max-width: 560px) {
  .asset-reserved-video {
    min-height: 600px;
  }

  .asset-reserved-video .asset-caption {
    left: 18px;
    right: 18px;
    bottom: 18px;
    padding: 20px;
  }
}


/* ===== v43：仅最后数字人 / 机器人展示区，两行三列竖版视频卡片 ===== */
.embodied-section .embodied-layout .asset-gallery {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 2vw, 24px);
  align-items: stretch;
}

.embodied-section .asset-reserved-video {
  grid-column: auto;
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;
  overflow: hidden;
  border-radius: 28px;
  background: linear-gradient(145deg, rgba(255, 255, 255, .92), rgba(237, 248, 255, .74));
  border: 1px solid rgba(104, 153, 205, .28);
  box-shadow: 0 18px 52px rgba(31, 74, 128, .085);
  transition: border-color .16s ease, box-shadow .16s ease;
}

.embodied-section .asset-reserved-video:hover {
  transform: none !important;
  border-color: rgba(67, 138, 221, .32) !important;
  box-shadow: 0 22px 58px rgba(31, 74, 128, .105) !important;
}

.embodied-section .asset-reserved-video .reserved-demo-media-frame {
  position: relative;
  inset: auto;
  display: block;
  padding: clamp(10px, 1.1vw, 14px);
  border-right: 0;
  border-bottom: 1px solid rgba(187, 212, 236, .60);
  background: linear-gradient(145deg, rgba(239, 248, 255, .82), rgba(255, 255, 255, .62));
}

.embodied-section .asset-reserved-video .reserved-demo-player {
  width: 100%;
  height: auto;
  min-height: 0;
  max-height: none;
  aspect-ratio: 9 / 16 !important;
  border-radius: 22px;
  border: 1px solid rgba(91, 142, 196, .24);
  background: #f8fbff;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .68) !important;
}

.embodied-section .asset-reserved-video .avatar-demo-player video,
.embodied-section .asset-reserved-video .avatar-demo-player .video-poster {
  width: 100%;
  height: 100%;
  object-fit: cover !important;
  border-radius: inherit;
}

.embodied-section .asset-reserved-video .video-play-button {
  --play-button-size: clamp(104px, 9vw, 140px);
}

.embodied-section .asset-reserved-video .asset-caption {
  position: relative;
  left: auto;
  right: auto;
  top: auto;
  bottom: auto;
  z-index: 1;
  width: auto;
  transform: none;
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: flex-start;
  padding: 16px 18px 20px;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.embodied-section .asset-reserved-video .asset-tags {
  gap: 8px;
  margin: 0 0 10px;
}

.embodied-section .asset-reserved-video .asset-caption h3 {
  margin: 0 0 8px;
  font-size: clamp(18px, 1.55vw, 22px);
  line-height: 1.25;
  letter-spacing: -.2px;
}

.embodied-section .asset-reserved-video .asset-caption p {
  max-width: none;
  margin: 0;
  color: #587087;
  font-size: 14px;
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media (max-width: 1040px) {
  .embodied-section .embodied-layout .asset-gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .embodied-section .embodied-layout .asset-gallery {
    grid-template-columns: 1fr;
  }

  .embodied-section .asset-reserved-video .reserved-demo-player {
    aspect-ratio: 4 / 5 !important;
  }
}

/* ===== v44：第二批次，仅重组技术介绍 / 科学问题与方法路径 ===== */



.research-path-section {
  display: grid;
  gap: 22px;
}

.research-module {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 20px;
  padding: clamp(20px, 2.8vw, 32px);
  border: 1px solid rgba(112, 156, 207, .24);
  border-radius: 30px;
  background:
    radial-gradient(circle at 12% 0%, rgba(95, 171, 255, .13), transparent 30%),
    linear-gradient(145deg, rgba(255, 255, 255, .94), rgba(240, 248, 255, .76));
  box-shadow: 0 22px 62px rgba(31, 74, 128, .10), inset 0 1px 0 rgba(255, 255, 255, .88);
}

.research-module::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(79, 195, 255, .40), transparent);
  pointer-events: none;
}

.research-copy {
  position: relative;
  z-index: 1;
  max-width: 920px;
}

.research-kicker {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 6px 12px;
  border: 1px solid rgba(75, 147, 228, .22);
  border-radius: 999px;
  color: #1768b8;
  background: rgba(236, 247, 255, .78);
  font-size: 13px;
  font-weight: 900;
}

.research-copy h3 {
  margin: 14px 0 10px;
  color: var(--heading);
  font-size: clamp(22px, 2.25vw, 32px);
  line-height: 1.22;
  letter-spacing: -0.45px;
}

.research-copy p {
  margin: 9px 0 0;
  max-width: 900px;
  color: #465a76;
  font-size: clamp(15px, 1.12vw, 16.5px);
  line-height: 1.85;
}

.research-image-slot {
  position: relative;
  z-index: 1;
  min-height: clamp(300px, 36vw, 460px);
  border: 1px solid rgba(112, 156, 207, .26);
  border-radius: 24px;
  overflow: hidden;
  background:
    linear-gradient(rgba(88, 152, 222, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(88, 152, 222, .055) 1px, transparent 1px),
    radial-gradient(circle at 76% 24%, rgba(79, 195, 255, .13), transparent 30%),
    linear-gradient(145deg, rgba(255, 255, 255, .90), rgba(236, 246, 255, .66));
  background-size: 22px 22px, 22px 22px, 100% 100%, 100% 100%;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .88), 0 16px 42px rgba(31, 74, 128, .065);
}

.research-slot-inner {
  position: absolute;
  inset: 22px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 10px;
  border: 1px dashed rgba(93, 139, 192, .32);
  border-radius: 20px;
  color: #67809d;
  text-align: center;
  background: rgba(255, 255, 255, .32);
}

.research-slot-inner span {
  display: inline-flex;
  padding: 6px 11px;
  border-radius: 999px;
  color: #2b78c6;
  background: rgba(236, 247, 255, .84);
  border: 1px solid rgba(75, 147, 228, .18);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .06em;
}

.research-slot-inner strong {
  color: #1a3357;
  font-size: clamp(20px, 2vw, 28px);
  letter-spacing: -0.3px;
}

.research-slot-inner p {
  margin: 0;
  max-width: 520px;
  color: #6f8198;
  font-size: 14.5px;
  line-height: 1.7;
}

.research-path-section .root-summary {
  margin-top: 4px;
}

@media (max-width: 760px) {
  .research-module {
    padding: 18px;
    border-radius: 24px;
  }

  .research-image-slot {
    min-height: 240px;
  }

  .research-slot-inner {
    inset: 14px;
  }
}

/* ===== v45：仅技术介绍文字层级 + 最后数字人/机器人区域增量扩展 ===== */












.research-science-module .research-image-slot {
  min-height: clamp(280px, 32vw, 420px);
}

.embodied-section .embodied-layout .asset-gallery {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 2vw, 24px);
  align-items: stretch;
}

.embodied-section .asset-avatar:not(.asset-reserved-video) {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: clamp(390px, 33vw, 480px);
  overflow: hidden;
}

.embodied-section .asset-avatar:not(.asset-reserved-video) .media-frame {
  display: grid;
  padding: 14px;
  min-height: clamp(245px, 21vw, 320px);
  border-bottom: 1px solid rgba(187, 212, 236, .60);
}

.embodied-section .asset-avatar:not(.asset-reserved-video) .media-frame img {
  width: 100%;
  height: 100%;
  max-height: none !important;
  object-fit: cover;
  border-radius: 20px;
}

.embodied-section .asset-avatar:not(.asset-reserved-video) .asset-caption {
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: flex-start;
  padding: 18px 20px 22px;
}

.embodied-section .asset-avatar:not(.asset-reserved-video) .asset-caption h3 {
  margin: 10px 0 8px;
}

.embodied-section .asset-avatar:not(.asset-reserved-video) .asset-caption p {
  margin: 0;
  line-height: 1.7;
}

@media (max-width: 1040px) {
  .embodied-section .embodied-layout .asset-gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .embodied-section .embodied-layout .asset-gallery {
    grid-template-columns: 1fr;
  }
}

/* ===== v46：技术介绍三张原图改为 config.js 配置后，真实图片自适应容器 ===== */
.research-image-slot.has-image {
  display: grid;
  place-items: center;
  padding: clamp(14px, 2vw, 22px);
}

.research-image-slot.has-image img {
  display: block;
  width: 100%;
  height: 100%;
  max-height: clamp(300px, 36vw, 460px);
  object-fit: contain;
  border-radius: 18px;
}

.research-science-module .research-image-slot.has-image img {
  max-height: clamp(280px, 32vw, 420px);
}

/* ===== v47：本轮小范围增量优化：研究图并排 + 架构图占位 + 数字人/机器人视频完整显示 ===== */
.research-figure-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(18px, 2vw, 24px);
  align-items: stretch;
}

.research-figure-pair .research-module,
.research-solution-card {
  min-width: 0;
}

.research-figure-card {
  display: grid;
  grid-template-rows: auto minmax(260px, 1fr);
  gap: clamp(16px, 1.7vw, 22px);
  padding: clamp(18px, 2.2vw, 26px);
  border-radius: 28px;
}

.research-figure-card .research-copy {
  max-width: none;
}

.research-figure-card .research-copy h3 {
  font-size: clamp(20px, 1.75vw, 26px);
}

.research-figure-card .research-copy p {
  max-width: none;
  font-size: clamp(14.5px, 1vw, 15.5px);
  line-height: 1.76;
}

.research-figure-card .research-image-slot {
  min-height: clamp(260px, 25vw, 360px);
}

.research-figure-card .research-image-slot.has-image img {
  max-height: clamp(240px, 23vw, 330px);
}

.research-solution-card {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, .98fr);
  gap: clamp(20px, 2.6vw, 34px);
  align-items: stretch;
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid rgba(112, 156, 207, .24);
  border-radius: 32px;
  background:
    radial-gradient(circle at 11% 0%, rgba(95, 171, 255, .13), transparent 28%),
    linear-gradient(145deg, rgba(255, 255, 255, .94), rgba(239, 248, 255, .74));
  box-shadow: 0 22px 62px rgba(31, 74, 128, .10), inset 0 1px 0 rgba(255, 255, 255, .88);
}

.research-solution-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(79, 195, 255, .40), transparent);
  pointer-events: none;
}

.research-solution-copy,
.research-solution-card .research-image-slot {
  position: relative;
  z-index: 1;
}

.research-solution-copy h3 {
  margin: 14px 0 12px;
  color: var(--heading);
  font-size: clamp(24px, 2.25vw, 34px);
  line-height: 1.2;
  letter-spacing: -.55px;
}

.research-solution-lead {
  margin: 0;
  color: #405874;
  font-size: clamp(15.5px, 1.12vw, 17px);
  line-height: 1.86;
}

.research-solution-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: clamp(18px, 2vw, 24px);
}

.research-solution-point {
  padding: 16px;
  border: 1px solid rgba(113, 166, 224, .22);
  border-radius: 20px;
  background: linear-gradient(145deg, rgba(255, 255, 255, .78), rgba(236, 247, 255, .62));
  box-shadow: 0 10px 28px rgba(31, 74, 128, .055);
}

.research-solution-point span {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 4px 9px;
  border-radius: 999px;
  color: #1768b8;
  background: rgba(236, 247, 255, .84);
  border: 1px solid rgba(75, 147, 228, .18);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .04em;
}

.research-solution-point h4 {
  margin: 11px 0 7px;
  color: var(--heading);
  font-size: 16px;
  line-height: 1.32;
}

.research-solution-point p {
  margin: 0;
  color: #526982;
  font-size: 13.5px;
  line-height: 1.68;
}

.research-solution-note {
  margin: clamp(16px, 2vw, 22px) 0 0;
  padding: 14px 16px;
  border: 1px solid rgba(70, 138, 220, .22);
  border-radius: 18px;
  color: #2f557b;
  background: rgba(236, 247, 255, .72);
  font-size: 14px;
  line-height: 1.7;
}

.research-solution-card .research-image-slot {
  min-height: clamp(360px, 34vw, 520px);
}

.video-first-frame {
  position: absolute !important;
  inset: 0 !important;
  z-index: 1 !important;
  display: block;
  width: 100% !important;
  height: 100% !important;
  object-fit: var(--demo-video-fit, contain) !important;
  background: #f8fbff;
  pointer-events: none;
  user-select: none;
}

.lychee-video-player.is-ready .video-first-frame,
.lychee-video-player.is-playing .video-first-frame,
.lychee-video-player.is-unavailable .video-first-frame {
  opacity: 0 !important;
  visibility: hidden;
  pointer-events: none !important;
}

.embodied-section .embodied-layout .asset-gallery {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 2vw, 24px);
}

.embodied-section .asset-reserved-video .reserved-demo-player {
  aspect-ratio: var(--demo-video-ratio, 9 / 16) !important;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(248, 251, 255, .98), rgba(231, 244, 255, .82)),
    #f8fbff;
}

.embodied-section .asset-reserved-video .avatar-demo-player video,
.embodied-section .asset-reserved-video .avatar-demo-player .video-poster,
.embodied-section .asset-reserved-video .avatar-demo-player .video-first-frame {
  width: 100% !important;
  height: 100% !important;
  object-fit: contain !important;
  border-radius: inherit;
  background: #f8fbff;
}

.embodied-section .asset-reserved-video .video-play-button {
  --play-button-size: clamp(64px, 5.4vw, 82px);
  border-color: rgba(245, 168, 72, .32);
  box-shadow: 0 10px 26px rgba(120, 80, 28, .13), inset 0 0 0 1px rgba(255, 255, 255, .62);
}

.embodied-section .asset-reserved-video .video-play-button::before {
  inset: 8px;
}

.embodied-section .asset-reserved-video .video-play-button::after {
  inset: -3px;
}

.embodied-section .asset-reserved-video .video-play-icon {
  width: clamp(22px, 2vw, 28px);
  height: clamp(26px, 2.35vw, 34px);
  margin-left: 5px;
}

@media (max-width: 1080px) {
  .research-figure-pair,
  .research-solution-card {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 760px) {
  .research-figure-card {
    grid-template-rows: auto auto;
  }

  .research-solution-card {
    padding: 18px;
    border-radius: 24px;
  }

  .research-solution-points {
    grid-template-columns: 1fr;
  }

  .research-solution-card .research-image-slot {
    min-height: 260px;
  }
}

@media (max-width: 680px) {
  .embodied-section .asset-reserved-video .reserved-demo-player {
    aspect-ratio: var(--demo-video-ratio, 9 / 16) !important;
  }
}

/* ===== v48：仅技术介绍 02 / 03 局部优化：问题路线图 + 架构主图放大 ===== */
.text-accent,
.problem-flow-card strong,
.research-solution-lead-list strong {
  color: #1d6fd1;
  font-weight: 900;
}

.problem-flow-section {
  display: grid;
  gap: clamp(18px, 2vw, 24px);
}

.problem-section-head {
  max-width: 1080px;
}

.problem-flow-card {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: clamp(18px, 2.2vw, 28px);
  width: 100%;
  margin-top: clamp(20px, 2.4vw, 30px);
  padding: clamp(22px, 3vw, 34px);
  border-radius: 32px;
  border: 1px solid rgba(112, 156, 207, .24);
  background:
    radial-gradient(circle at 10% 0%, rgba(95, 171, 255, .13), transparent 28%),
    linear-gradient(145deg, rgba(255, 255, 255, .92), rgba(239, 248, 255, .74));
  box-shadow: 0 22px 62px rgba(31, 74, 128, .10), inset 0 1px 0 rgba(255, 255, 255, .88);
}

.problem-flow-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(79, 195, 255, .42), transparent);
  pointer-events: none;
}

.problem-flow-intro,
.problem-main-figure,
.problem-route-grid,
.problem-route-summary,
.problem-final-callout {
  position: relative;
  z-index: 1;
}

.problem-flow-intro {
  display: grid;
  gap: 8px;
  max-width: 990px;
}

.problem-flow-intro p,
.problem-route-summary p,
.problem-final-callout p {
  margin: 0;
  color: #405574;
  font-size: clamp(15.5px, 1.12vw, 17px);
  line-height: 1.86;
  letter-spacing: .01em;
}

.problem-main-figure {
  margin: 0;
  padding: clamp(10px, 1.6vw, 18px);
  border-radius: 28px;
  border: 1px solid rgba(112, 156, 207, .24);
  background:
    linear-gradient(rgba(88, 152, 222, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(88, 152, 222, .045) 1px, transparent 1px),
    linear-gradient(145deg, rgba(255, 255, 255, .86), rgba(238, 247, 255, .66));
  background-size: 22px 22px, 22px 22px, 100% 100%;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .88), 0 16px 42px rgba(31, 74, 128, .065);
}

.problem-main-figure img {
  width: 100%;
  height: auto;
  border-radius: 20px;
  object-fit: contain;
  background: rgba(255, 255, 255, .74);
  cursor: zoom-in;
}

.problem-route-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(12px, 1.5vw, 18px);
}

.problem-route-grid article {
  padding: 17px 18px 18px;
  border-radius: 22px;
  border: 1px solid rgba(113, 166, 224, .22);
  background: linear-gradient(145deg, rgba(255, 255, 255, .80), rgba(236, 247, 255, .62));
  box-shadow: 0 12px 34px rgba(31, 74, 128, .055);
}

.problem-route-grid span {
  display: inline-flex;
  align-items: center;
  min-height: 25px;
  padding: 4px 10px;
  border-radius: 999px;
  color: #1768b8;
  background: rgba(236, 247, 255, .86);
  border: 1px solid rgba(75, 147, 228, .18);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .04em;
}

.problem-route-grid h3 {
  margin: 12px 0 8px;
  color: var(--heading);
  font-size: clamp(17px, 1.34vw, 20px);
  line-height: 1.28;
  letter-spacing: -.2px;
}

.problem-route-grid p {
  margin: 0;
  color: #526982;
  font-size: 14px;
  line-height: 1.7;
}

.problem-route-summary {
  padding: clamp(18px, 2vw, 22px);
  border-radius: 22px;
  border: 1px solid rgba(70, 138, 220, .20);
  background: linear-gradient(145deg, rgba(232, 245, 255, .74), rgba(255, 255, 255, .68));
}

.problem-route-summary h3 {
  margin: 0 0 10px;
  color: var(--heading);
  font-size: clamp(19px, 1.6vw, 24px);
  letter-spacing: -.25px;
}

.problem-route-summary p + p {
  margin-top: 8px;
}

.problem-final-callout {
  padding: 17px 20px;
  border-radius: 22px;
  border: 1px solid rgba(70, 138, 220, .24);
  background: rgba(245, 250, 255, .76);
  box-shadow: inset 3px 0 0 rgba(29, 142, 255, .55);
}

.problem-final-callout p {
  color: #243d62;
  font-weight: 760;
}

.research-path-section .section-head {
  max-width: 1060px;
}

.research-solution-card {
  grid-template-columns: minmax(320px, .74fr) minmax(620px, 1.26fr);
  gap: clamp(24px, 3vw, 40px);
  align-items: center;
  padding: clamp(24px, 3.2vw, 38px);
}

.research-solution-copy h3 {
  font-size: clamp(25px, 2.15vw, 34px);
}

.research-solution-lead-list {
  display: grid;
  gap: 8px;
}

.research-solution-lead-list .research-solution-lead {
  margin: 0;
}

.research-solution-points {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: clamp(18px, 2vw, 24px);
}

.research-solution-point {
  padding: 15px 15px 16px;
}

.research-solution-detail {
  margin-top: clamp(16px, 1.9vw, 22px);
  padding: 16px 18px;
  border-radius: 20px;
  border: 1px solid rgba(113, 166, 224, .20);
  background: linear-gradient(145deg, rgba(255, 255, 255, .72), rgba(238, 247, 255, .60));
}

.research-solution-detail h4 {
  margin: 0 0 8px;
  color: var(--heading);
  font-size: 17px;
  line-height: 1.35;
}

.research-solution-detail p {
  margin: 0;
  color: #4b6078;
  font-size: 14.2px;
  line-height: 1.72;
}

.research-solution-detail p + p {
  margin-top: 7px;
}

.research-solution-card .research-image-slot {
  min-height: clamp(430px, 43vw, 640px);
  padding: clamp(8px, 1.2vw, 16px);
  border-radius: 30px;
}

.research-solution-card .research-image-slot.has-image img {
  max-height: clamp(410px, 40vw, 615px);
  border-radius: 20px;
}

.research-solution-note {
  font-weight: 760;
  color: #24456b;
}

@media (max-width: 1160px) {
  .research-solution-card {
    grid-template-columns: 1fr;
  }

  .research-solution-card .research-image-slot {
    min-height: clamp(340px, 54vw, 560px);
  }

  .research-solution-card .research-image-slot.has-image img {
    max-height: clamp(320px, 50vw, 540px);
  }
}

@media (max-width: 860px) {
  .problem-route-grid,
  .research-solution-points {
    grid-template-columns: 1fr;
  }

  .problem-flow-card {
    padding: 20px;
    border-radius: 26px;
  }
}

@media (max-width: 680px) {
  .problem-main-figure {
    padding: 8px;
    border-radius: 22px;
  }

  .problem-main-figure img {
    border-radius: 16px;
  }

  .research-solution-card .research-image-slot {
    min-height: 250px;
  }
}

/* ===== v49：技术介绍 03 大图独立成行 + 恢复数字人/机器人效果图 ===== */
.research-solution-card.research-solution-card-wide {
  grid-template-columns: 1fr !important;
  gap: clamp(20px, 2.4vw, 30px);
  align-items: stretch;
  padding: clamp(24px, 3vw, 38px);
}

.research-solution-card-wide .research-solution-copy,
.research-solution-card-wide .research-solution-figure-row,
.research-solution-card-wide .research-solution-bottom {
  position: relative;
  z-index: 1;
}

.research-solution-card-wide .research-solution-copy {
  display: grid;
  gap: clamp(14px, 1.6vw, 20px);
  max-width: none;
}

.research-solution-card-wide .research-solution-copy h3 {
  max-width: 860px;
  margin: 12px 0 0;
}

.research-solution-card-wide .research-solution-lead-list {
  max-width: 940px;
}

.research-solution-card-wide .research-solution-points {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 0;
}

.research-solution-card-wide .research-solution-figure-row {
  display: grid;
  width: 100%;
}

.research-solution-card-wide .research-figure-row-title {
  display: none;
}

.research-solution-card-wide .research-image-slot {
  width: 100%;
  min-height: clamp(500px, 48vw, 720px) !important;
  padding: clamp(14px, 1.8vw, 24px) !important;
  border-radius: 32px;
  background:
    linear-gradient(rgba(88, 152, 222, .052) 1px, transparent 1px),
    linear-gradient(90deg, rgba(88, 152, 222, .052) 1px, transparent 1px),
    radial-gradient(circle at 78% 16%, rgba(89, 176, 255, .14), transparent 30%),
    linear-gradient(145deg, rgba(252, 254, 255, .92), rgba(235, 247, 255, .72));
  background-size: 24px 24px, 24px 24px, 100% 100%, 100% 100%;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .92), 0 18px 50px rgba(31, 74, 128, .075);
}

.research-solution-card-wide .research-image-slot.has-image img {
  width: min(100%, 1180px);
  height: auto;
  max-height: clamp(470px, 44vw, 680px) !important;
  object-fit: contain;
  border-radius: 20px;
  background: rgba(255, 255, 255, .78);
}

.research-solution-card-wide .research-solution-bottom {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(280px, .82fr);
  gap: clamp(14px, 1.6vw, 20px);
  align-items: stretch;
}

.research-solution-card-wide .research-solution-detail,
.research-solution-card-wide .research-solution-note {
  margin: 0;
  height: 100%;
}

.research-solution-card-wide .research-solution-note {
  display: flex;
  align-items: center;
  padding: 18px 20px;
  border-radius: 20px;
  background: linear-gradient(145deg, rgba(233, 246, 255, .82), rgba(255, 255, 255, .72));
  box-shadow: inset 3px 0 0 rgba(29, 142, 255, .50);
}

.embodied-section .embodied-showcase-gallery,
.embodied-section .embodied-video-gallery {
  grid-column: 1 / -1;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.embodied-section .embodied-showcase-gallery {
  margin-top: clamp(4px, .8vw, 10px);
}

.embodied-section .embodied-video-gallery {
  margin-top: clamp(14px, 1.8vw, 22px);
}

.embodied-section .embodied-showcase-gallery .asset-avatar:not(.asset-reserved-video) {
  min-height: clamp(430px, 34vw, 540px);
  border-color: rgba(104, 153, 205, .28);
  background: linear-gradient(145deg, rgba(255, 255, 255, .94), rgba(237, 248, 255, .74));
  box-shadow: 0 18px 52px rgba(31, 74, 128, .085);
  transform: none !important;
}

.embodied-section .embodied-showcase-gallery .asset-avatar:not(.asset-reserved-video):hover {
  transform: none !important;
  border-color: rgba(67, 138, 221, .32) !important;
  box-shadow: 0 22px 58px rgba(31, 74, 128, .105) !important;
}

.embodied-section .embodied-showcase-gallery .asset-avatar:not(.asset-reserved-video) .media-frame {
  min-height: clamp(260px, 22vw, 350px);
  padding: 12px;
}

.embodied-section .embodied-showcase-gallery .asset-avatar:not(.asset-reserved-video) .media-frame img {
  object-fit: cover;
  object-position: center;
}

.embodied-section .embodied-showcase-gallery .asset-avatar:not(.asset-reserved-video) .asset-caption {
  padding: 18px 20px 22px;
}

.embodied-section .embodied-showcase-gallery .asset-avatar:not(.asset-reserved-video) .asset-caption h3 {
  font-size: clamp(18px, 1.45vw, 22px);
}

@media (max-width: 1180px) {
  .research-solution-card-wide .research-solution-points {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .research-solution-card-wide .research-solution-bottom {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1040px) {
  .embodied-section .embodied-showcase-gallery,
  .embodied-section .embodied-video-gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .research-solution-card-wide .research-solution-points,
  .research-solution-card-wide .research-solution-bottom {
    grid-template-columns: 1fr;
  }

  .research-solution-card-wide .research-image-slot {
    min-height: clamp(260px, 56vw, 420px) !important;
    padding: 10px !important;
    border-radius: 24px;
  }

  .research-solution-card-wide .research-image-slot.has-image img {
    max-height: clamp(240px, 52vw, 400px) !important;
    border-radius: 16px;
  }
}

@media (max-width: 680px) {
  .embodied-section .embodied-showcase-gallery,
  .embodied-section .embodied-video-gallery {
    grid-template-columns: 1fr;
  }
}

/* ===== v51：Full-duplex motivation section refinement ===== */
.concept-head-wide {
  max-width: 1120px !important;
}

.concept-head-wide p {
  max-width: 1080px;
}

.concept-compare-boxes {
  margin: clamp(22px, 3vw, 34px) 0 clamp(18px, 2.5vw, 28px) !important;
}

.concept-compare-boxes .before-box,
.concept-compare-boxes .after-box {
  min-height: 188px;
}

.concept-compare-boxes h3 {
  line-height: 1.22;
}

.concept-compare-boxes p {
  line-height: 1.7;
}

@media (max-width: 980px) {
  .concept-compare-boxes .before-box,
  .concept-compare-boxes .after-box {
    min-height: 0;
  }
}

/* ===== v50：Hero without promo video + centered technical landing ===== */
.hero-static.section {
  min-height: auto !important;
  padding: clamp(48px, 7vh, 86px) 0 clamp(46px, 6vh, 72px) !important;
}

.hero-layout {
  min-height: auto !important;
  grid-template-columns: 1fr !important;
  grid-template-areas:
    "copy"
    "metrics" !important;
  gap: clamp(26px, 3.2vw, 42px) !important;
  align-items: center !important;
}

.hero-static .hero-copy {
  grid-area: copy !important;
  max-width: 980px;
  margin: 0 auto;
  text-align: center;
}

.hero-static .hero-stage,
.hero-video-stage,
[data-hero-promo] {
  display: none !important;
}

.hero-static h1 {
  max-width: none !important;
  margin-left: auto !important;
  margin-right: auto !important;
  font-size: clamp(70px, 9vw, 136px) !important;
  line-height: .92 !important;
  letter-spacing: -2.6px !important;
}

.hero-static .hero-slogan {
  max-width: 960px;
  margin-left: auto !important;
  margin-right: auto !important;
  font-size: clamp(32px, 4.1vw, 58px) !important;
  line-height: 1.1 !important;
}

.hero-static .hero-desc {
  max-width: 860px !important;
  margin-left: auto !important;
  margin-right: auto !important;
}

.hero-static .hero-actions {
  justify-content: center;
}

.hero-static .hero-metrics {
  grid-area: metrics !important;
  margin-top: 0 !important;
}

.technology-intro-section {
  padding-top: clamp(36px, 4.6vw, 60px) !important;
}

.concept-section {
  margin-top: 0 !important;
  padding-top: clamp(24px, 3.2vw, 42px) !important;
}

.concept-section .problem-main-figure {
  margin-top: clamp(18px, 2.4vw, 28px);
}

@media (max-width: 760px) {
  .hero-static h1 {
    font-size: clamp(56px, 16vw, 88px) !important;
    letter-spacing: -1.8px !important;
  }

  .hero-static .hero-slogan {
    font-size: clamp(27px, 8vw, 38px) !important;
  }
}

/* ===== v52：Scientific insight cards equalized ===== */
.research-figure-pair {
  align-items: stretch !important;
}

.research-figure-card {
  grid-template-rows: auto 1fr !important;
  height: 100%;
}

.research-figure-card .research-copy {
  min-height: 210px;
}

.research-figure-card .research-image-slot {
  min-height: 450px !important;
  height: 450px !important;
  display: grid !important;
  place-items: center !important;
}

.research-figure-card .research-image-slot.has-image img {
  width: 100% !important;
  height: 100% !important;
  max-height: none !important;
  object-fit: contain !important;
  object-position: center !important;
}

@media (max-width: 1080px) {
  .research-figure-card .research-copy {
    min-height: 0;
  }

  .research-figure-card .research-image-slot {
    height: auto !important;
    min-height: clamp(340px, 58vw, 500px) !important;
  }
}

/* ===== v53：Wider technical headers + safe contained research figures ===== */
.concept-head-wide,
.research-path-section .section-head {
  width: 100% !important;
  max-width: none !important;
}

.concept-head-wide p,
.research-path-section .section-head p {
  width: 100% !important;
  max-width: none !important;
}

.research-figure-card .research-image-slot {
  overflow: hidden !important;
  box-sizing: border-box;
}

.research-figure-card .research-image-slot.has-image img {
  width: auto !important;
  height: auto !important;
  max-width: 100% !important;
  max-height: 100% !important;
  object-fit: contain !important;
  object-position: center !important;
}

/* ===== v54：Method section header outside solution card ===== */
.method-section-head {
  width: 100% !important;
  max-width: none !important;
  margin-top: clamp(40px, 5vw, 70px) !important;
  margin-bottom: clamp(18px, 2.4vw, 28px) !important;
}

.method-section-head p:not(.section-index) {
  width: 100% !important;
  max-width: 1040px !important;
}

.method-points-only {
  max-width: none !important;
}

.method-points-only .research-solution-points {
  grid-template-columns: repeat(4, minmax(0, 1fr)) !important;
  margin-top: 0 !important;
}

.research-solution-card-wide .research-solution-bottom:empty {
  display: none !important;
}

@media (max-width: 1180px) {
  .method-points-only .research-solution-points {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  }
}

@media (max-width: 760px) {
  .method-points-only .research-solution-points {
    grid-template-columns: 1fr !important;
  }
}

/* ===== v56：Engineering speedup figure under method architecture ===== */
.engineering-figure-row {
  display: grid;
  gap: clamp(12px, 1.5vw, 18px);
  margin-top: clamp(12px, 1.8vw, 22px);
}

.engineering-figure-row .research-image-slot {
  min-height: clamp(300px, 34vw, 460px) !important;
  padding: clamp(12px, 1.5vw, 18px) !important;
}

.engineering-figure-row .research-image-slot.has-image img {
  width: min(100%, 980px) !important;
  height: auto !important;
  max-width: 100% !important;
  max-height: clamp(280px, 32vw, 430px) !important;
  object-fit: contain !important;
}

.engineering-figure-caption {
  margin: 0;
  padding: clamp(16px, 1.8vw, 22px);
  border: 1px solid rgba(70, 138, 220, .22);
  border-radius: 20px;
  color: #24456b;
  background: linear-gradient(145deg, rgba(236, 247, 255, .82), rgba(255,255,255,.72));
  box-shadow: inset 3px 0 0 rgba(29, 142, 255, .50);
  font-size: clamp(14.5px, 1.05vw, 16px);
  line-height: 1.72;
  font-weight: 720;
}

/* ===== v55：Results section uses table-first analysis, not metric cards ===== */
.results-head-wide {
  width: 100% !important;
  max-width: none !important;
  margin-bottom: clamp(18px, 2.4vw, 28px) !important;
}

.results-section .result-gallery {
  grid-template-columns: 1fr !important;
  gap: clamp(34px, 4vw, 52px) !important;
}

.results-section .asset-chart {
  padding: 0 !important;
  border: 0 !important;
  border-radius: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
  overflow: visible !important;
}

.results-section .asset-chart .media-frame {
  padding: 0 !important;
  border: 0 !important;
  background: transparent !important;
}

.results-section .asset-chart .media-frame img {
  width: 100% !important;
  max-height: none !important;
  border-radius: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
}

.result-table-notes {
  margin-top: clamp(14px, 1.8vw, 22px);
  padding: clamp(18px, 2vw, 24px);
  border: 1px solid rgba(112, 156, 207, .24);
  border-radius: 24px;
  background: linear-gradient(145deg, rgba(255,255,255,.88), rgba(239,248,255,.66));
  box-shadow: 0 12px 34px rgba(31, 74, 128, .06);
}

.result-table-notes h3 {
  margin: 0 0 10px;
  color: var(--heading);
  font-size: clamp(20px, 1.7vw, 26px);
  letter-spacing: -.25px;
}

.result-table-notes p {
  margin: 0;
  color: #465d76;
  font-size: clamp(14.5px, 1.05vw, 16px);
  line-height: 1.75;
}

.result-table-notes p + p {
  margin-top: 8px;
}

/* ===== v57：Demos are grouped into web, avatar, and robot subsections ===== */
.demo-subsection {
  margin-top: clamp(54px, 6vw, 86px);
}

.demo-subsection-head {
  margin-bottom: clamp(20px, 2.6vw, 34px);
}

.demo-subsection-head h3 {
  margin: 0;
  color: var(--heading);
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.08;
  letter-spacing: -1.2px;
}

.demo-section .embodied-video-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 2vw, 24px);
  align-items: start;
}

.demo-section .asset-reserved-video {
  grid-column: auto;
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: auto;
  overflow: hidden;
  border-radius: 28px;
  background: linear-gradient(145deg, rgba(255, 255, 255, .92), rgba(237, 248, 255, .74));
  border: 1px solid rgba(104, 153, 205, .28);
  box-shadow: 0 18px 52px rgba(31, 74, 128, .085);
}

.demo-section .asset-reserved-video .reserved-demo-media-frame {
  position: relative;
  inset: auto;
  display: block;
  padding: 0;
  overflow: hidden;
  border-radius: 28px 28px 22px 22px;
  border-right: 0;
  border-bottom: 0;
  background: transparent;
}

.demo-section .asset-reserved-video .reserved-demo-player {
  position: relative;
  display: block;
  box-sizing: border-box;
  width: 100%;
  height: auto;
  min-height: 0;
  max-height: none;
  aspect-ratio: var(--demo-video-ratio, 9 / 16) !important;
  border-radius: inherit;
  overflow: hidden;
  isolation: isolate;
  border: 0;
  background: #111827;
  box-shadow: none !important;
}

.demo-section .asset-reserved-video .avatar-demo-player video,
.demo-section .asset-reserved-video .avatar-demo-player .video-poster,
.demo-section .asset-reserved-video .avatar-demo-player .video-first-frame {
  position: absolute !important;
  inset: 0 !important;
  display: block !important;
  width: 100% !important;
  height: 100% !important;
  max-width: none !important;
  max-height: none !important;
  object-fit: contain !important;
  object-position: center top !important;
  border-radius: inherit !important;
  background: #111827 !important;
}

.demo-section .asset-reserved-video .asset-caption {
  position: relative;
  left: auto;
  right: auto;
  top: auto;
  bottom: auto;
  z-index: 1;
  width: auto;
  transform: none;
  display: flex;
  flex: 0 0 auto;
  flex-direction: column;
  justify-content: flex-start;
  padding: 14px 18px 20px;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.demo-section .asset-reserved-video .asset-tags {
  display: none !important;
}

.demo-section .asset-reserved-video .asset-caption h3 {
  margin: 0 0 8px;
  font-size: clamp(18px, 1.55vw, 22px);
  line-height: 1.25;
  letter-spacing: -.2px;
}

.demo-section .asset-reserved-video .asset-caption p {
  display: none !important;
}

@media (max-width: 1040px) {
  .demo-section .embodied-video-gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .demo-section .embodied-video-gallery {
    grid-template-columns: 1fr;
  }
}

/* Fix demo video blank state before actual playback */
.lychee-video-player video {
  z-index: 2 !important;
  opacity: 0 !important;
  background: #f8fbff !important;
}

/* Keep poster / first frame visible before playback */
.lychee-video-player .video-poster,
.lychee-video-player .video-first-frame {
  z-index: 3 !important;
  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: none !important;
}

/* Keep play button on top */
.lychee-video-player .video-play-button {
  z-index: 4 !important;
}

/* Only show real video after it is actually playing */
.lychee-video-player.is-playing video {
  opacity: 1 !important;
}

/* Only hide poster / first frame after actual playback starts */
.lychee-video-player.is-playing .video-poster,
.lychee-video-player.is-playing .video-first-frame {
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none !important;
}

/* Do not hide play button just because the video is ready */
.lychee-video-player.is-ready:not(.is-playing) .video-play-button {
  opacity: .96 !important;
  pointer-events: auto !important;
}

/* Do not hide fallback visual before actual playback */
.lychee-video-player.is-ready:not(.is-playing) .video-poster,
.lychee-video-player.is-ready:not(.is-playing) .video-first-frame {
  opacity: 1 !important;
  visibility: visible !important;
}

/* Keep video / poster / first-frame scaling consistent */
.lychee-video-player video,
.lychee-video-player .video-poster,
.lychee-video-player .video-first-frame {
  object-fit: var(--demo-video-fit, contain) !important;
}

/* ===== v60: stabilize avatar/robot demo playback state and frame ratio ===== */
.demo-section .embodied-video-gallery .reserved-demo-media-frame,
.demo-section .embodied-video-gallery .avatar-demo-player {
  aspect-ratio: 9 / 16 !important;
  width: 100% !important;
  height: auto !important;
}

.demo-section .embodied-video-gallery .avatar-demo-player {
  --demo-video-ratio: 9 / 16 !important;
  --demo-video-fit: cover !important;
}

.demo-section .embodied-video-gallery .avatar-demo-player video,
.demo-section .embodied-video-gallery .avatar-demo-player .video-poster,
.demo-section .embodied-video-gallery .avatar-demo-player .video-first-frame {
  width: 100% !important;
  height: 100% !important;
  max-width: none !important;
  max-height: none !important;
  object-fit: cover !important;
  object-position: center center !important;
  background: transparent !important;
}

/* ===== v59: final polish for hero copy, section labels, and avatar demo framing ===== */
.hero-static h1 {
  line-height: 1.08 !important;
  padding-bottom: 0.08em !important;
  overflow: visible !important;
}

.hero-static .hero-copy {
  overflow: visible !important;
}

.hero-static .hero-slogan {
  max-width: 1040px !important;
}

.demo-section .embodied-video-gallery {
  align-items: stretch !important;
}

.demo-section .embodied-video-gallery .asset-card.asset-reserved-video {
  height: 100% !important;
}

.demo-section .embodied-video-gallery .reserved-demo-media-frame,
.demo-section .embodied-video-gallery .avatar-demo-player {
  aspect-ratio: 9 / 16 !important;
  width: 100% !important;
}

.demo-section .embodied-video-gallery .avatar-demo-player {
  --demo-video-ratio: 9 / 16 !important;
  --demo-video-fit: cover !important;
}

.demo-section .embodied-video-gallery .avatar-demo-player video,
.demo-section .embodied-video-gallery .avatar-demo-player .video-poster,
.demo-section .embodied-video-gallery .avatar-demo-player .video-first-frame {
  object-fit: cover !important;
}