/* C²Flow · 驭算智能 — Site Styles */
@font-face {
  font-family: 'C2Flow Latin';
  src: url('fonts/google-sans/google-sans-regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'C2Flow Latin';
  src: url('fonts/google-sans/google-sans-medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'C2Flow Latin';
  src: url('fonts/google-sans/google-sans-bold.woff2') format('woff2');
  font-weight: 700 800;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'C2Flow Chinese';
  src: url('fonts/alibaba-puhuiti/Alibaba-PuHuiTi-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'C2Flow Chinese';
  src: url('fonts/alibaba-puhuiti/Alibaba-PuHuiTi-Medium.woff2') format('woff2');
  font-weight: 500 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'C2Flow Chinese';
  src: url('fonts/alibaba-puhuiti/Alibaba-PuHuiTi-Bold.woff2') format('woff2');
  font-weight: 700 800;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --bg-base: #0A0E14;
  --bg-elevated: #141821;
  --bg-card: #1A1F2A;
  --bg-mock: #0E1320;
  --bg-gradient-start: #0A0E14;
  --bg-gradient-end: #141821;
  --border-subtle: #2A2F3A;
  --border-strong: #3A4050;
  --border-accent: #2A3550;
  --fg-primary: #FFFFFF;
  --fg-secondary: #A8B0BD;
  --fg-muted: #6B7280;
  --fg-on-accent: #0A0E14;
  --grad-text-start: #FFFFFF;
  --accent-blue: #409EFF;
  --accent-blue-soft: rgba(64, 158, 255, 0.13);
  --accent-green: #76B900;
  --accent-green-soft: rgba(118, 185, 0, 0.13);
  --navbar-bg: rgba(20, 24, 33, 0.85);
  --navbar-scrolled-bg: rgba(10, 14, 20, 0.92);
  --navbar-shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
  --surface-glass: rgba(10, 14, 20, 0.7);
  --surface-glass-strong: rgba(10, 14, 20, 0.8);
  --surface-glass-medium: rgba(10, 14, 20, 0.55);
  --surface-glass-soft: rgba(10, 14, 20, 0.38);
  --surface-inset: rgba(255, 255, 255, 0.03);
  --surface-border-soft: rgba(255, 255, 255, 0.08);
  --surface-border-faint: rgba(255, 255, 255, 0.06);
  --overlay-scrim-top: rgba(10, 14, 20, 0.72);
  --overlay-scrim-mid: rgba(10, 14, 20, 0.28);
  --overlay-art-fade: rgba(10, 14, 20, 0.88);
  --overlay-art-mid: rgba(10, 14, 20, 0.62);
  --overlay-art-light: rgba(10, 14, 20, 0.28);
  --hero-visual-glow: rgba(14, 19, 32, 0.95);
  --hero-visual-radial: rgba(64, 158, 255, 0.18);
  --shadow-card: 0 24px 48px rgba(0, 0, 0, 0.32);
  --shadow-inset-highlight: inset 0 1px 0 rgba(255, 255, 255, 0.05);
  --text-shadow-hero: 0 2px 20px rgba(0, 0, 0, 0.45);
  --text-shadow-body: 0 1px 10px rgba(0, 0, 0, 0.35);
  --pipeline-stage-bg: rgba(26, 31, 42, 0.88);
  --pipeline-stage-blue-text: #cfe6ff;
  --pipeline-stage-green-text: #dff5b8;
  --mock-step-bg: rgba(20, 24, 33, 0.72);
  --mock-step-border: rgba(255, 255, 255, 0.07);
  --mock-icon-bg: rgba(255, 255, 255, 0.04);
  --mock-num-ring: rgba(10, 14, 20, 0.85);
  --mock-ai-border: rgba(118, 185, 0, 0.18);
  --mock-ai-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04), 0 24px 48px rgba(0, 0, 0, 0.28);
  --mock-ai-surface: linear-gradient(135deg, rgba(14, 19, 32, 0.98) 0%, rgba(20, 24, 33, 0.98) 100%);
  --mock-ai-grid-h: rgba(255, 255, 255, 0.018);
  --mock-ai-grid-v: rgba(255, 255, 255, 0.012);
  --mock-divider: rgba(255, 255, 255, 0.06);
  --team-node-bg: rgba(20, 24, 33, 0.88);
  --team-node-border: rgba(255, 255, 255, 0.1);
  --team-node-shadow: 0 10px 28px rgba(0, 0, 0, 0.28);
  --mobile-menu-bg: rgba(20, 24, 33, 0.98);
  --track-deep: rgba(10, 14, 20, 0.85);
  --engine-mock-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05), 0 24px 48px rgba(0, 0, 0, 0.32);
  --engine-mock-border: rgba(64, 158, 255, 0.22);
  --scene-cv-shade-a: rgba(10, 14, 20, 0.18);
  --scene-cv-shade-b: rgba(10, 14, 20, 0.12);
  --scene-cv-shade-c: rgba(10, 14, 20, 0.2);
  --mission-shade-a: rgba(10, 14, 20, 0.2);
  --mission-shade-b: rgba(10, 14, 20, 0.42);
  --mission-shade-c: rgba(10, 14, 20, 0.62);
  --mission-shade-d: rgba(10, 14, 20, 0.45);
  --mission-shade-e: rgba(10, 14, 20, 0.18);
  --fg-on-gradient: #FFFFFF;
  --art-blend-top: rgba(10, 14, 20, 0.16);
  --art-blend-bottom: rgba(10, 14, 20, 0.08);
  --arch-num-fg: #3A4050;
  --arch-num-green: rgba(118, 185, 0, 0.35);
  --mock-title-color: var(--fg-secondary);
  --font-heading: 'C2Flow Latin', 'C2Flow Chinese', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'C2Flow Chinese', 'C2Flow Latin', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-caption: 'C2Flow Latin', 'C2Flow Chinese', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

[data-theme="light"] {
  color-scheme: light;
  --bg-base: #FFFFFF;
  --bg-elevated: #F8FAFC;
  --bg-card: #FFFFFF;
  --bg-mock: #FFFFFF;
  --bg-gradient-start: #FFFFFF;
  --bg-gradient-end: #F8FAFC;
  --border-subtle: #E2E8F0;
  --border-strong: #CBD5E1;
  --border-accent: #CBD5E1;
  --fg-primary: #0F172A;
  --fg-secondary: #475569;
  --fg-muted: #94A3B8;
  --fg-on-accent: #0A0E14;
  --grad-text-start: #0F172A;
  --accent-blue-soft: rgba(64, 158, 255, 0.12);
  --accent-green-soft: rgba(118, 185, 0, 0.12);
  --navbar-bg: rgba(255, 255, 255, 0.88);
  --navbar-scrolled-bg: rgba(255, 255, 255, 0.96);
  --navbar-shadow: 0 6px 24px rgba(15, 23, 42, 0.08);
  --surface-glass: rgba(255, 255, 255, 0.82);
  --surface-glass-strong: rgba(255, 255, 255, 0.92);
  --surface-glass-medium: rgba(255, 255, 255, 0.72);
  --surface-glass-soft: rgba(255, 255, 255, 0.65);
  --surface-inset: rgba(15, 23, 42, 0.04);
  --surface-border-soft: rgba(15, 23, 42, 0.08);
  --surface-border-faint: rgba(15, 23, 42, 0.06);
  --overlay-scrim-top: rgba(248, 250, 252, 0.82);
  --overlay-scrim-mid: rgba(248, 250, 252, 0.45);
  --overlay-art-fade: rgba(255, 255, 255, 0.96);
  --overlay-art-mid: rgba(255, 255, 255, 0.62);
  --overlay-art-light: rgba(255, 255, 255, 0.38);
  --hero-visual-glow: rgba(255, 255, 255, 0.98);
  --hero-visual-radial: rgba(64, 158, 255, 0.14);
  --shadow-card: 0 16px 40px rgba(15, 23, 42, 0.08);
  --shadow-inset-highlight: inset 0 1px 0 rgba(255, 255, 255, 0.9);
  --text-shadow-hero: none;
  --text-shadow-body: none;
  --pipeline-stage-bg: rgba(255, 255, 255, 0.92);
  --pipeline-stage-blue-text: #1D4ED8;
  --pipeline-stage-green-text: #4D7C0F;
  --mock-step-bg: rgba(255, 255, 255, 0.92);
  --mock-step-border: rgba(15, 23, 42, 0.08);
  --mock-icon-bg: rgba(15, 23, 42, 0.05);
  --mock-num-ring: rgba(255, 255, 255, 0.95);
  --mock-ai-border: rgba(64, 158, 255, 0.22);
  --mock-ai-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.95), 0 16px 40px rgba(15, 23, 42, 0.08);
  --mock-ai-surface: linear-gradient(135deg, #FFFFFF 0%, #FAFBFC 100%);
  --mock-ai-grid-h: rgba(15, 23, 42, 0.04);
  --mock-ai-grid-v: rgba(15, 23, 42, 0.03);
  --mock-divider: rgba(15, 23, 42, 0.08);
  --team-node-bg: rgba(255, 255, 255, 0.96);
  --team-node-border: rgba(15, 23, 42, 0.1);
  --team-node-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
  --mobile-menu-bg: rgba(255, 255, 255, 0.98);
  --track-deep: #E2E8F0;
  --engine-mock-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.95), 0 16px 40px rgba(15, 23, 42, 0.08);
  --engine-mock-border: rgba(64, 158, 255, 0.28);
  --scene-cv-shade-a: rgba(248, 250, 252, 0.35);
  --scene-cv-shade-b: rgba(248, 250, 252, 0.25);
  --scene-cv-shade-c: rgba(248, 250, 252, 0.4);
  --mission-shade-a: rgba(255, 255, 255, 0.35);
  --mission-shade-b: rgba(255, 255, 255, 0.55);
  --mission-shade-c: rgba(255, 255, 255, 0.72);
  --mission-shade-d: rgba(255, 255, 255, 0.45);
  --mission-shade-e: rgba(255, 255, 255, 0.22);
  --fg-on-gradient: #FFFFFF;
  --art-blend-top: rgba(255, 255, 255, 0.35);
  --art-blend-bottom: rgba(255, 255, 255, 0.15);
  --arch-num-fg: #C5D0DE;
  --arch-num-green: rgba(118, 185, 0, 0.45);
  --mock-title-color: var(--fg-primary);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

html::-webkit-scrollbar {
  display: none;
}

body {
  background: var(--bg-base);
  color: var(--fg-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.material-symbols-rounded {
  display: inline-flex;
  width: 1em;
  height: 1em;
  align-items: center;
  justify-content: center;
  line-height: 1;
  vertical-align: -0.125em;
}

.material-symbols-rounded svg {
  display: block;
  width: 1em;
  height: 1em;
  flex: 0 0 auto;
  stroke: currentColor;
  fill: none;
}

body::-webkit-scrollbar {
  display: none;
}

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

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

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--navbar-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 32px;
  max-width: 1440px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 20px;
}

.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  background: var(--accent-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 14px;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-size: 14px;
  color: var(--fg-secondary);
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--fg-primary);
}

.nav-links a.active {
  color: var(--accent-blue);
  font-weight: 600;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  padding: 0;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  font-family: var(--font-caption);
  font-size: 10px;
  font-weight: 600;
  line-height: 1;
  color: var(--fg-secondary);
  cursor: pointer;
  background: var(--surface-inset);
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.nav-icon-btn:hover {
  color: var(--fg-primary);
  border-color: var(--accent-blue);
  background: var(--accent-blue-soft);
}

.nav-icon-btn .material-symbols-rounded {
  font-size: 18px;
  font-variation-settings: 'FILL' 0, 'wght' 500, 'GRAD' 0, 'opsz' 24;
}

.lang-btn,
.theme-btn {
  /* shared via .nav-icon-btn */
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  transition: transform 0.15s, box-shadow 0.15s;
  cursor: pointer;
  border: none;
  font-family: var(--font-body);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent-blue);
  color: white;
  box-shadow: 0 6px 20px rgba(64, 158, 255, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 8px 28px rgba(64, 158, 255, 0.45);
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--accent-green);
  color: var(--accent-green);
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--fg-secondary);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 13px;
}

/* Sections */
section {
  padding: 100px 0;
}

.section-bg-elevated {
  background: var(--bg-elevated);
}

.section-bg-gradient {
  background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
}

.section-head {
  text-align: center;
  margin-bottom: 56px;
}

.section-head h2 {
  font-family: var(--font-heading);
  font-size: 40px;
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 12px;
}

.section-head .en {
  font-family: var(--font-caption);
  font-size: 15px;
  color: var(--fg-secondary);
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 9999px;
  font-family: var(--font-caption);
  font-size: 12px;
  font-weight: 500;
  background: var(--accent-blue-soft);
  border: 1px solid var(--accent-blue);
  color: var(--accent-blue);
}

.badge.green {
  background: var(--accent-green-soft);
  border-color: var(--accent-green);
  color: var(--accent-green);
}

.badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}

/* Hero */
.hero {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 80px;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: 64px;
  font-weight: 800;
  line-height: 1.1;
  margin: 24px 0;
}

.hero h1 .grad {
  background: linear-gradient(120deg, var(--grad-text-start) 0%, #409EFF 60%, #76B900 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero .subtitle {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 500;
  color: var(--accent-blue);
  line-height: 1.4;
  margin-bottom: 20px;
}

.hero .desc {
  font-size: 16px;
  color: var(--fg-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Hero visual */
.hero-visual {
  position: relative;
  aspect-ratio: 4/3;
  border-radius: 18px;
  overflow: hidden;
  background: radial-gradient(circle at 50% 50%, var(--hero-visual-radial) 0%, var(--hero-visual-glow) 70%);
  border: 1px solid var(--border-accent);
  padding: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gpu-card {
  position: relative;
  width: 80%;
  padding: 16px;
  border-radius: 14px;
  background: var(--bg-base);
  border: 2px solid var(--accent-green);
  box-shadow: 0 0 60px rgba(118, 185, 0, 0.4);
}

.gpu-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-caption);
  font-size: 11px;
  font-weight: 700;
  color: var(--accent-green);
  margin-bottom: 12px;
}

.gpu-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 6px;
}

.gpu-cell {
  aspect-ratio: 2/1;
  background: var(--accent-blue);
  border-radius: 3px;
  opacity: 0.4;
}

.glow-dot {
  position: absolute;
  border-radius: 50%;
  box-shadow: 0 0 30px currentColor;
}

.glow-dot.bl {
  top: 10%;
  left: 8%;
  width: 24px;
  height: 24px;
  background: var(--accent-blue);
  color: var(--accent-blue);
}

.glow-dot.gr1 {
  top: 18%;
  right: 8%;
  width: 18px;
  height: 18px;
  background: var(--accent-green);
  color: var(--accent-green);
}

.glow-dot.bl2 {
  bottom: 12%;
  left: 12%;
  width: 20px;
  height: 20px;
  background: var(--accent-blue);
  color: var(--accent-blue);
}

.glow-dot.gr2 {
  bottom: 10%;
  right: 12%;
  width: 22px;
  height: 22px;
  background: var(--accent-green);
  color: var(--accent-green);
}

.hero-visual-caption {
  position: absolute;
  bottom: 18px;
  left: 18px;
  padding: 6px 12px;
  border-radius: 9999px;
  background: var(--surface-glass);
  border: 1px solid var(--border-accent);
  font-family: var(--font-caption);
  font-size: 11px;
  color: var(--fg-secondary);
}

/* Cards grid - 4 directions */
.cards-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 28px;
  transition: transform 0.2s, border-color 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
}

.card .num {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--accent-blue);
  font-size: 14px;
  margin-bottom: 14px;
}

.card .icon {
  width: 56px;
  height: 56px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.card .icon.blue {
  background: var(--accent-blue-soft);
  color: var(--accent-blue);
  border: 1px solid rgba(64, 158, 255, 0.33);
}

.card .icon.green {
  background: var(--accent-green-soft);
  color: var(--accent-green);
  border: 1px solid rgba(118, 185, 0, 0.33);
}

.card .icon .material-symbols-rounded {
  font-size: 28px;
}

.card h3 {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 4px;
}

.card .en {
  font-family: var(--font-caption);
  font-size: 12px;
  color: var(--fg-muted);
  margin-bottom: 16px;
}

.card p {
  font-size: 13px;
  color: var(--fg-secondary);
  line-height: 1.6;
}

/* Two-column section */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.two-col.reverse> :first-child {
  order: 2;
}

.two-col h2 {
  font-family: var(--font-heading);
  font-size: 40px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 12px;
}

.two-col .lead-num {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--accent-blue);
  font-size: 14px;
  margin-bottom: 8px;
}

.two-col .lead-num.green {
  color: var(--accent-green);
}

.two-col .en-sub {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 500;
  color: var(--accent-blue);
  margin-bottom: 18px;
}

.two-col .en-sub.green {
  color: var(--accent-green);
}

.two-col p {
  color: var(--fg-secondary);
  line-height: 1.75;
  margin-bottom: 20px;
}

.feature-list {
  list-style: none;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  color: var(--fg-secondary);
  font-size: 14px;
}

.feature-list li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-blue);
}

.feature-list.green li::before {
  background: var(--accent-green);
}

/* Visual mockups */
.mock {
  position: relative;
  aspect-ratio: 16/10;
  border-radius: 14px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--bg-mock) 0%, var(--bg-gradient-end) 100%);
  border: 1px solid var(--border-accent);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mock-head {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  font-family: var(--font-caption);
  font-size: 11px;
  color: var(--fg-muted);
}

.mock-head .mock-dots {
  flex: 1 1 auto;
  min-width: 0;
}

.mock-dots {
  display: flex;
  gap: 6px;
  align-items: center;
  min-width: 0;
}

.mock-dots>span:not(.material-symbols-rounded):not(.mock-title) {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex: 0 0 10px;
}

.mock-dots .mock-title {
  width: auto;
  height: auto;
  border-radius: 0;
  flex: 1 1 auto;
  min-width: 0;
  margin-left: 6px;
  white-space: nowrap;
}

.mock-dots .material-symbols-rounded {
  flex: 0 0 auto;
  width: auto;
  height: auto;
  border-radius: 0;
}

.mock-status {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-green);
  font-weight: 600;
}

.pipeline {
  display: flex;
  align-items: center;
  gap: 8px;
}

.pipeline .stage {
  flex: 1;
  padding: 10px;
  border-radius: 8px;
  background: var(--bg-card);
  text-align: center;
  font-size: 12px;
  font-weight: 600;
}

.pipeline .stage.blue {
  border: 1px solid rgba(64, 158, 255, 0.4);
}

.pipeline .stage.green {
  border: 1px solid rgba(118, 185, 0, 0.4);
}

.pipeline .arrow {
  color: var(--fg-muted);
}

.panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  flex: 1;
}

.panel {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.panel-title {
  font-family: var(--font-caption);
  font-size: 11px;
  color: var(--fg-muted);
}

.bars {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  flex: 1;
}

.bars span {
  flex: 1;
  background: var(--accent-blue);
  border-radius: 2px;
}

.bars.green span {
  background: var(--accent-green);
}

.gpu-bars {
  display: flex;
  flex-direction: column;
  gap: 6px;
  justify-content: center;
  flex: 1;
}

.gpu-bar-row {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  color: var(--fg-muted);
}

.gpu-bar-row .lbl {
  width: 40px;
}

.gpu-bar-row .track {
  flex: 1;
  height: 10px;
  border-radius: 5px;
  background: var(--bg-base);
  overflow: hidden;
}

.gpu-bar-row .fill {
  height: 100%;
  background: var(--accent-green);
}

.gpu-bar-row .val {
  width: 32px;
  color: var(--accent-green);
}

/* NVIDIA tags */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.tag {
  padding: 10px 18px;
  border-radius: 9999px;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  font-size: 14px;
  font-weight: 500;
}

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 32px;
  text-align: center;
}

.stat .num {
  font-family: var(--font-heading);
  font-size: 44px;
  font-weight: 800;
  color: var(--accent-blue);
  line-height: 1;
  margin-bottom: 8px;
}

.stat .lbl {
  font-family: var(--font-caption);
  font-size: 13px;
  color: var(--fg-secondary);
}

/* CTA section */
.cta {
  background: linear-gradient(180deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
  text-align: center;
}

.cta h2 {
  font-family: var(--font-heading);
  font-size: 40px;
  font-weight: 700;
  margin-bottom: 20px;
}

.cta p {
  color: var(--fg-secondary);
  max-width: 600px;
  margin: 0 auto 28px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Footer */
footer {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border-subtle);
  padding: 48px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}

.footer-col h4 {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 12px;
}

.footer-col a {
  display: block;
  font-size: 12px;
  color: var(--fg-muted);
  padding: 4px 0;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--fg-primary);
}

.footer-bot {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  max-width: 1280px;
  margin: 24px auto 0;
  padding: 20px 32px 0;
  border-top: 1px solid var(--border-subtle);
  font-family: var(--font-caption);
  font-size: 11px;
  color: var(--fg-muted);
}

.footer-record {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.footer-record a {
  color: var(--fg-muted);
  transition: color 0.2s;
}

.footer-record a:hover {
  color: var(--fg-secondary);
}

.footer-record-sep {
  color: var(--fg-muted);
}

/* Solutions hero */
.page-hero {
  padding: 100px 0 80px;
  background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
  text-align: center;
}

.page-hero h1 {
  font-family: var(--font-heading);
  font-size: 56px;
  font-weight: 800;
  margin: 16px 0;
}

.page-hero p {
  color: var(--fg-secondary);
  max-width: 800px;
  margin: 0 auto;
  font-size: 17px;
  line-height: 1.6;
}

/* Scenario images */
.scene {
  position: relative;
  aspect-ratio: 16/10;
  border-radius: 14px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--bg-mock) 0%, var(--bg-gradient-end) 100%);
  border: 1px solid var(--border-accent);
}

.scene .label {
  position: absolute;
  bottom: 18px;
  left: 18px;
  padding: 6px 12px;
  border-radius: 9999px;
  background: var(--surface-glass);
  border: 1px solid var(--border-accent);
  font-family: var(--font-caption);
  font-size: 11px;
  color: var(--fg-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.scene .label .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

/* CV scene */
.scene.scene-cv {
  isolation: isolate;
  overflow: visible;
}

.scene-cv-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 50%;
  z-index: 0;
  border-radius: 14px;
}

.scene-cv-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04) 0%, var(--scene-cv-shade-a) 100%),
    linear-gradient(135deg, var(--scene-cv-shade-b) 0%, transparent 42%, var(--scene-cv-shade-c) 100%);
}

.scene-cv::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(64, 158, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(64, 158, 255, 0.04) 1px, transparent 1px);
  background-size: 50px 50px;
}

.scene-cv .bbox {
  z-index: 3;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.25);
}

.scene-cv .bbox .tag {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
}

.scene-cv .label {
  z-index: 4;
}

.scene-cv .bbox-person {
  top: 57%;
  left: 6.5%;
  width: 5%;
  height: 18%;
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.scene-cv .bbox-vehicle {
  top: 58%;
  left: 29%;
  width: 35%;
  height: 16%;
  border-color: var(--accent-green);
  color: var(--accent-green);
}

.scene-cv .bbox-cyclist {
  top: 59%;
  left: 10%;
  width: 21%;
  height: 31%;
  border-color: var(--accent-green);
  color: var(--accent-green);
}

.bbox {
  position: absolute;
  border: 2px solid;
  border-radius: 3px;
}

.bbox .tag {
  position: absolute;
  top: -22px;
  left: 0;
  padding: 3px 8px;
  border-radius: 3px;
  font-family: var(--font-caption);
  font-size: 10px;
  font-weight: 700;
  color: var(--fg-on-accent);
  white-space: nowrap;
}

/* AD scene */
.scene-ad svg {
  width: 100%;
  height: 100%;
}

.hud {
  position: absolute;
  top: 18px;
  left: 18px;
  padding: 12px;
  border-radius: 8px;
  background: var(--surface-glass-strong);
  border: 1px solid var(--border-accent);
  width: 200px;
  font-family: var(--font-caption);
  font-size: 10px;
}

.hud .title {
  font-weight: 700;
  color: var(--accent-green);
  margin-bottom: 8px;
}

.hud .row {
  display: flex;
  justify-content: space-between;
  padding: 2px 0;
  color: var(--fg-secondary);
}

.hud .row b {
  color: var(--fg-primary);
  font-weight: 600;
}

/* GenAI scene */
.scene-gen {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.prompt {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 10px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  border-radius: 9999px;
  font-family: var(--font-caption);
  font-size: 11px;
  color: var(--fg-secondary);
}

.gen-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  flex: 1;
}

.gen-tile {
  border-radius: 8px;
  position: relative;
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: flex-end;
  padding: 6px;
  overflow: hidden;
  background: var(--bg-card);
  box-shadow: inset 0 0 18px rgba(64, 158, 255, 0.14);
}

.gen-tile::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(6, 12, 20, 0) 48%, rgba(6, 12, 20, 0.64) 100%),
    radial-gradient(circle at 50% 0%, rgba(118, 185, 0, 0.18), transparent 56%);
  pointer-events: none;
}

.gen-tile img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.02);
  transition: transform 0.6s var(--ease-out), filter 0.6s var(--ease-out);
}

.gen-tile:hover img {
  transform: scale(1.08);
  filter: saturate(1.12) contrast(1.04);
}

.gen-tile .ver {
  position: relative;
  z-index: 1;
  padding: 2px 6px;
  border-radius: 9999px;
  background: rgba(0, 0, 0, 0.35);
  color: var(--fg-on-gradient);
  font-family: var(--font-caption);
  font-size: 9px;
  font-weight: 700;
}

[data-theme="light"] .gen-tile .ver {
  background: rgba(0, 0, 0, 0.28);
}

.gen-tile.t1 {
  background: linear-gradient(135deg, #409EFF 0%, #76B900 100%);
}

.gen-tile.t2 {
  background: linear-gradient(135deg, #76B900 0%, #409EFF 100%);
}

.gen-tile.t3 {
  background: linear-gradient(135deg, #409EFF 0%, #FF6B9D 100%);
}

.gen-tile.t4 {
  background: linear-gradient(135deg, #76B900 0%, #409EFF 100%);
}

/* Local visual artwork cards */
.visual-art {
  isolation: isolate;
  position: relative;
  overflow: hidden;
}

.visual-art::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -3;
  background:
    radial-gradient(circle at 18% 20%, rgba(64, 158, 255, 0.24), transparent 34%),
    radial-gradient(circle at 86% 82%, rgba(118, 185, 0, 0.2), transparent 36%);
  pointer-events: none;
}

.visual-art__image {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.58;
  mix-blend-mode: screen;
  transform: scale(1.05);
  pointer-events: none;
}

.visual-art::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, var(--overlay-art-fade) 0%, var(--overlay-art-mid) 48%, var(--overlay-art-light) 100%),
    linear-gradient(180deg, var(--art-blend-top) 0%, var(--overlay-art-mid) 100%);
  pointer-events: none;
}

.visual-art--gen::after {
  background:
    linear-gradient(180deg, var(--overlay-art-mid) 0%, var(--overlay-art-light) 48%, var(--overlay-art-fade) 100%),
    linear-gradient(90deg, var(--overlay-art-fade) 0%, var(--overlay-art-light) 100%);
}

.visual-art--platform::after {
  background:
    linear-gradient(180deg, var(--overlay-art-fade) 0%, var(--overlay-art-light) 48%, var(--overlay-art-fade) 100%),
    linear-gradient(90deg, var(--overlay-art-fade) 0%, var(--overlay-art-light) 100%);
}

.visual-art--team::after {
  background:
    linear-gradient(90deg, var(--overlay-art-light) 0%, var(--overlay-art-mid) 52%, var(--overlay-art-fade) 100%),
    linear-gradient(180deg, var(--art-blend-bottom) 0%, var(--overlay-art-fade) 100%);
}

.visual-art__orb {
  position: absolute;
  z-index: 0;
  width: 74px;
  height: 74px;
  border-radius: 9999px;
  filter: blur(1px);
  opacity: 0.76;
  pointer-events: none;
}

.visual-art__orb--blue {
  top: 14%;
  right: 12%;
  background: radial-gradient(circle, rgba(64, 158, 255, 0.88), rgba(64, 158, 255, 0));
}

.visual-art__orb--green {
  right: 28%;
  bottom: 16%;
  width: 54px;
  height: 54px;
  background: radial-gradient(circle, rgba(118, 185, 0, 0.86), rgba(118, 185, 0, 0));
}

.visual-art__caption {
  position: absolute;
  right: 18px;
  bottom: 18px;
  z-index: 3;
  max-width: min(360px, calc(100% - 36px));
  padding: 7px 12px;
  border-radius: 9999px;
  background: var(--surface-glass);
  border: 1px solid var(--surface-border-soft);
  color: var(--fg-secondary);
  font-family: var(--font-caption);
  font-size: 11px;
  font-weight: 600;
  backdrop-filter: blur(10px);
}

.visual-art> :not(.visual-art__image):not(.visual-art__orb) {
  position: relative;
  z-index: 2;
}

.visual-art--sim.engine-mock {
  min-height: 430px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: stretch;
}

.visual-art--sim .engine-pipeline {
  width: 100%;
  max-width: 100%;
  align-self: stretch;
}

.visual-art--sim .modality-chips {
  width: 100%;
  max-width: 100%;
  align-self: stretch;
}

.visual-art--gen.scene-gen {
  min-height: 380px;
}

.visual-art--gen .prompt {
  max-width: 86%;
}

.visual-art--gen .gen-grid {
  align-self: stretch;
  min-height: 160px;
  margin-top: auto;
}

.visual-art--platform.mock {
  min-height: 0;
  height: auto;
}

.visual-art--platform .pipeline,
.visual-art--platform .panel {
  width: 100%;
  max-width: 100%;
}

.two-col .mock.visual-art--platform,
.two-col .scene {
  width: 100%;
  max-width: 100%;
  justify-self: stretch;
}

.mission-with-visual {
  display: grid;
  grid-template-columns: minmax(360px, 1.1fr) minmax(0, 1.5fr);
  gap: 24px;
  align-items: stretch;
}

.mission-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.mission-cards .mission-card:last-child {
  grid-column: 1 / -1;
}

.mission-visual {
  min-height: 410px;
  border-radius: 12px;
  border: 1px solid var(--border-accent);
  background: linear-gradient(135deg, var(--bg-mock) 0%, var(--bg-gradient-end) 100%);
}

.mission-visual.visual-art--team::after {
  background:
    linear-gradient(180deg, var(--mission-shade-a) 0%, var(--mission-shade-b) 55%, var(--mission-shade-c) 100%),
    linear-gradient(90deg, var(--mission-shade-d) 0%, var(--mission-shade-e) 100%);
}

.mission-visual .visual-art__image {
  opacity: 0.55;
  mix-blend-mode: soft-light;
}

.team-hub {
  position: relative;
  z-index: 3;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
  height: 100%;
  min-height: 370px;
  padding: 16px 16px 14px;
}

.team-hub__label {
  align-self: flex-start;
  padding: 5px 12px;
  border-radius: 9999px;
  background: var(--surface-glass-medium);
  border: 1px solid var(--surface-border-soft);
  color: var(--fg-secondary);
  font-family: var(--font-caption);
  font-size: 11px;
  font-weight: 600;
  backdrop-filter: blur(8px);
}

.team-hub__core {
  position: relative;
  flex: 1;
  min-height: 200px;
  margin: 4px 0;
}

.team-hub__svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.team-link {
  stroke: rgba(64, 158, 255, 0.42);
  stroke-width: 2;
  stroke-linecap: round;
  opacity: 0.55;
}

.team-hub__core::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 38%, rgba(64, 158, 255, 0.12), transparent 58%);
  pointer-events: none;
}

.team-node {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 78px;
  height: 78px;
  border-radius: 50%;
  background: var(--team-node-bg);
  border: 1px solid var(--team-node-border);
  box-shadow: var(--team-node-shadow);
  backdrop-filter: blur(8px);
  transform: translate(-50%, -50%);
}

.team-node .material-symbols-rounded {
  font-size: 22px;
  color: var(--accent-blue);
}

.team-node__text {
  font-family: var(--font-caption);
  font-size: 11px;
  font-weight: 700;
  color: var(--fg-primary);
  line-height: 1;
}

.team-node--top {
  top: 18%;
  left: 50%;
}

.team-node--top .material-symbols-rounded {
  color: var(--accent-blue);
}

.team-node--left {
  top: 78%;
  left: 22%;
}

.team-node--left .material-symbols-rounded {
  color: var(--accent-green);
}

.team-node--right {
  top: 78%;
  left: 78%;
}

.team-node--right .material-symbols-rounded {
  color: var(--accent-blue);
}

.team-node.is-active {
  border-color: rgba(64, 158, 255, 0.55);
  box-shadow: 0 0 24px rgba(64, 158, 255, 0.22);
}

.team-node--left.is-active,
.team-node--right.is-active {
  border-color: rgba(118, 185, 0, 0.55);
  box-shadow: 0 0 24px rgba(118, 185, 0, 0.2);
}

.team-hub__pulse {
  position: absolute;
  top: 18%;
  left: 50%;
  width: 92px;
  height: 92px;
  border-radius: 50%;
  border: 1px solid rgba(64, 158, 255, 0.35);
  transform: translate(-50%, -50%);
  pointer-events: none;
}

/* About hero with reception bg */
.about-hero {
  position: relative;
  padding: 100px 0;
  overflow: hidden;
  text-align: center;
  background: var(--bg-base);
  min-height: 480px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.about-hero .bg {
  position: absolute;
  inset: -24px;
  background-image: url('./reception.jpg');
  background-size: cover;
  background-position: center center;
  filter: blur(4px);
  transform: scale(1.03);
}

.about-hero .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--overlay-scrim-top) 0%, var(--overlay-scrim-mid) 42%, var(--overlay-scrim-mid) 58%, var(--overlay-scrim-top) 100%);
}

.about-hero .glow {
  position: absolute;
  top: 30%;
  right: 30%;
  width: 400px;
  height: 240px;
  border-radius: 50%;
  background: var(--accent-blue);
  opacity: 0.1;
  filter: blur(80px);
  pointer-events: none;
}

.about-hero .content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  padding: 28px 32px;
  background: var(--surface-glass-soft);
  border-radius: 16px;
  backdrop-filter: blur(6px);
  border: 1px solid var(--surface-border-faint);
}

.about-hero h1 {
  font-family: var(--font-heading);
  font-size: 52px;
  font-weight: 800;
  margin: 20px 0;
  text-shadow: var(--text-shadow-hero);
}

.about-hero p {
  color: var(--fg-secondary);
  font-size: 16px;
  line-height: 1.75;
  text-shadow: var(--text-shadow-body);
}

/* Mission cards */
.mission {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.mission-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 28px;
}

.mission-card .ico {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mission-card .ico .material-symbols-rounded {
  font-size: 26px;
  color: var(--fg-on-accent);
}

.mission-card h3 {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 4px;
}

.mission-card .en {
  font-family: var(--font-caption);
  font-size: 12px;
  margin-bottom: 12px;
}

.mission-card.blue .en {
  color: var(--accent-blue);
}

.mission-card.green .en {
  color: var(--accent-green);
}

.mission-card.blue .ico {
  background: var(--accent-blue);
}

.mission-card.green .ico {
  background: var(--accent-green);
}

.mission-card p {
  color: var(--fg-secondary);
  font-size: 14px;
  line-height: 1.6;
}

/* Team */
.team {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.member {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  border: 2px solid var(--bg-mock);
  background: linear-gradient(135deg, #409EFF 0%, #76B900 100%);
  margin-bottom: 4px;
  overflow: hidden;
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.member.m1 .avatar {
  background: var(--bg-elevated);
}

.member.m2 .avatar {
  background: var(--bg-elevated);
}

.member.m4 .avatar {
  background: var(--bg-elevated);
}

.member h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 18px;
}

.member .role {
  font-family: var(--font-caption);
  font-size: 12px;
  color: var(--accent-blue);
}

.member .bio {
  font-size: 12px;
  color: var(--fg-secondary);
}

/* Backing */
.backing {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.backing-left h2 {
  font-family: var(--font-heading);
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 8px;
}

.backing-left .en {
  color: var(--accent-green);
  font-family: var(--font-caption);
  font-size: 14px;
  margin-bottom: 16px;
}

.backing-left p {
  color: var(--fg-secondary);
  line-height: 1.75;
  margin-bottom: 20px;
}

.stages-mini {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.stage-mini {
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
}

.stage-mini .k {
  font-family: var(--font-caption);
  font-size: 11px;
  color: var(--fg-muted);
  margin-bottom: 6px;
}

.stage-mini .v {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
}

.backing-right {
  aspect-ratio: 1/1;
  border-radius: 14px;
  background: radial-gradient(circle at 50% 50%, rgba(118, 185, 0, 0.2) 0%, var(--bg-mock) 70%);
  border: 1px solid var(--border-accent);
  padding: 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.seal {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: #FFFFFF;
  border: 3px solid var(--bg-mock);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 60px rgba(64, 158, 255, 0.38);
  padding: 16px;
  overflow: hidden;
}

.seal__logo {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.backing-right h3 {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  text-align: center;
}

.recog-badges {
  display: flex;
  gap: 8px;
}

.recog-badges span {
  padding: 4px 10px;
  border-radius: 9999px;
  background: rgba(118, 185, 0, 0.13);
  border: 1px solid rgba(118, 185, 0, 0.4);
  font-family: var(--font-caption);
  font-size: 10px;
  font-weight: 600;
  color: var(--accent-green);
}

/* Built on NVIDIA section */
.nvidia-sec {
  text-align: center;
}

.nvidia-sec h2 {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 700;
  margin: 20px 0 12px;
}

.nvidia-sec .desc {
  color: var(--fg-secondary);
  max-width: 900px;
  margin: 0 auto 32px;
  line-height: 1.6;
}

/* Mobile nav hamburger toggle
   基础规则必须放在响应式 media 之前，否则同等优先级下
   `.nav-toggle { display: none }` 会覆盖 @media 里的 inline-flex，导致汉堡按钮在移动端不可见 */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 38px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  cursor: pointer;
}

.nav-toggle .bar,
.nav-toggle .bar::before,
.nav-toggle .bar::after {
  content: '';
  display: block;
  width: 18px;
  height: 2px;
  background: var(--fg-secondary);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle .bar {
  position: relative;
}

.nav-toggle .bar::before {
  position: absolute;
  left: 0;
  top: -6px;
}

.nav-toggle .bar::after {
  position: absolute;
  left: 0;
  top: 6px;
}

.navbar.nav-open .nav-toggle .bar {
  background: transparent;
}

.navbar.nav-open .nav-toggle .bar::before {
  transform: translateY(6px) rotate(45deg);
}

.navbar.nav-open .nav-toggle .bar::after {
  transform: translateY(-6px) rotate(-45deg);
}

/* Responsive */
@media (max-width: 1024px) {

  .hero-grid,
  .two-col,
  .backing,
  .footer-grid {
    grid-template-columns: 1fr;
    padding: 0 32px;
  }

  .two-col.reverse> :first-child {
    order: 0;
  }

  .cards-4,
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .hero h1 {
    font-size: 44px;
  }

  .page-hero h1,
  .about-hero h1 {
    font-size: 36px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--mobile-menu-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 8px 0;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }

  .nav-links a {
    padding: 14px 32px;
    font-size: 15px;
  }

  .navbar.nav-open .nav-links {
    transform: none;
    opacity: 1;
    pointer-events: auto;
  }
}

@media (max-width: 640px) {

  .cards-4,
  .stats {
    grid-template-columns: 1fr;
  }

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

  section {
    padding: 60px 0;
  }

  .hero h1 {
    font-size: 36px;
  }

  .container,
  .navbar-inner {
    padding: 0 20px;
  }
}

/* Company logo image in nav / footer (theme-aware variants) */
.logo-img {
  height: 34px;
  width: auto;
  display: block;
}

.logo-img--light {
  display: none;
}

[data-theme="light"] .logo-img--dark {
  display: none;
}

[data-theme="light"] .logo-img--light {
  display: block;
}

.footer-logo-img {
  height: 30px;
}

/* Language switch button (functional via js/i18n.js) */

@media (max-width: 640px) {
  .logo-img {
    height: 28px;
  }

  /* 窄屏隐藏联系 CTA，给语言切换与汉堡按钮让位（联系入口仍在菜单里） */
  .nav-right .btn-primary {
    display: none;
  }
}

/* ===== 虚灵引擎页（engine.html）专用样式 ===== */

/* Hero 右侧「数据工厂」管线 Mock */
.engine-mock {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 20px;
}

.engine-mock .label-row {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  font-family: var(--font-caption);
  font-size: 12px;
  color: var(--fg-muted);
  margin-bottom: 16px;
}

.engine-mock .label-pill {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  border-radius: 9999px;
  background: var(--surface-glass-medium);
  border: 1px solid var(--surface-border-soft);
  color: var(--fg-secondary);
  font-family: var(--font-caption);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  backdrop-filter: blur(8px);
}

.engine-pipeline {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  align-self: stretch;
}

.engine-step {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 12px 14px;
  position: relative;
}

.engine-step .num {
  width: 24px;
  height: 24px;
  flex: 0 0 24px;
  border-radius: 50%;
  background: var(--accent-blue-soft);
  color: var(--accent-blue);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.engine-step.s2 .num,
.engine-step.s4 .num {
  background: var(--accent-green-soft);
  color: var(--accent-green);
}

.engine-step .body {
  flex: 1;
}

.engine-step .body .t {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 14px;
  color: var(--fg-primary);
}

.engine-step .body .s {
  font-family: var(--font-caption);
  font-size: 11px;
  color: var(--fg-muted);
  margin-top: 2px;
}

.engine-step .icon-r .material-symbols-rounded {
  font-size: 20px;
  color: var(--fg-secondary);
}

.modality-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.modality-chips .chip {
  font-family: var(--font-caption);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 9999px;
  background: var(--accent-blue-soft);
  border: 1px solid var(--accent-blue);
  color: var(--accent-blue);
}

.modality-chips .chip.alt {
  background: var(--accent-green-soft);
  border-color: var(--accent-green);
  color: var(--accent-green);
}

/* ===== 首页 Mock 区块美化 ===== */
#homeEngineMock.visual-art--sim.engine-mock {
  min-height: 448px;
  padding: 18px 18px 16px;
  border-color: var(--engine-mock-border);
  box-shadow: var(--engine-mock-shadow);
  gap: 0;
  justify-content: space-between;
  align-items: stretch;
}

#homeEngineMock .visual-art__image {
  opacity: 0.48;
}

#homeEngineMock .label-row {
  flex: 0 0 auto;
  margin-bottom: 0;
  justify-content: flex-start;
  align-items: center;
}

#homeEngineMock .label-pill {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  border-radius: 9999px;
  background: var(--surface-glass-medium);
  border: 1px solid var(--surface-border-soft);
  color: var(--fg-secondary);
  font-family: var(--font-caption);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  backdrop-filter: blur(8px);
}

#homeEngineMock .engine-pipeline {
  position: relative;
  width: 100%;
  max-width: 100%;
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  justify-content: space-evenly;
  align-items: stretch;
  align-self: stretch;
  gap: 0;
  margin: 10px 0;
  min-height: 0;
  padding: 0;
}

#homeEngineMock .engine-pipeline::before {
  content: '';
  position: absolute;
  left: 23px;
  top: 8%;
  bottom: 8%;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, rgba(64, 158, 255, 0.55) 0%, rgba(118, 185, 0, 0.45) 100%);
  opacity: 0.45;
}

#homeEngineMock .engine-step {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr) 28px;
  column-gap: 10px;
  width: 100%;
  max-width: 100%;
  align-self: stretch;
  padding: 10px 12px;
  min-height: 54px;
  align-items: center;
  text-align: left;
  background: var(--mock-step-bg);
  border-color: var(--mock-step-border);
  backdrop-filter: blur(10px);
  transition: border-color 0.35s ease, box-shadow 0.35s ease;
}

#homeEngineMock .engine-step.is-active {
  transform: none;
  box-shadow: inset 3px 0 0 var(--accent-blue);
}

#homeEngineMock .engine-step.s2.is-active,
#homeEngineMock .engine-step.s4.is-active {
  box-shadow: inset 3px 0 0 var(--accent-green);
}

#homeEngineMock .engine-step .num {
  width: 22px;
  height: 22px;
  flex: none;
  flex-basis: auto;
  justify-self: start;
  font-size: 11px;
  box-shadow: 0 0 0 3px var(--mock-num-ring);
}

#homeEngineMock .engine-step .body .t {
  font-size: 13px;
  text-align: left;
}

#homeEngineMock .engine-step .body .s {
  font-size: 10px;
  line-height: 1.35;
  text-align: left;
}

#homeEngineMock .engine-step .body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  min-width: 0;
}

#homeEngineMock .engine-step .icon-r {
  flex: none;
  justify-self: end;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--mock-icon-bg);
  display: flex;
  align-items: center;
  justify-content: center;
}

#homeEngineMock .engine-step .icon-r .material-symbols-rounded {
  font-size: 18px;
}

#homeEngineMock .modality-chips {
  max-width: 100%;
  width: 100%;
  flex: 0 0 auto;
  margin-top: 0;
  gap: 6px;
  padding-top: 0;
  justify-content: flex-start;
  align-items: center;
}

#homeEngineMock .modality-chips .chip {
  font-size: 10px;
  padding: 3px 9px;
  opacity: 0.92;
}

#homeAiMock.mock--ai-platform {
  min-height: 392px;
  aspect-ratio: auto;
  padding: 16px 16px 14px;
  border-color: var(--mock-ai-border);
  box-shadow: var(--mock-ai-shadow);
  background:
    var(--mock-ai-surface),
    repeating-linear-gradient(0deg, transparent, transparent 22px, var(--mock-ai-grid-h) 23px),
    repeating-linear-gradient(90deg, transparent, transparent 22px, var(--mock-ai-grid-v) 23px);
}

#homeAiMock .mock-glow {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(40px);
}

#homeAiMock .mock-glow--blue {
  top: -18%;
  right: -8%;
  width: 52%;
  height: 58%;
  background: rgba(64, 158, 255, 0.14);
}

#homeAiMock .mock-glow--green {
  bottom: -22%;
  left: -10%;
  width: 48%;
  height: 52%;
  background: rgba(118, 185, 0, 0.1);
}

#homeAiMock .mock-head {
  position: relative;
  z-index: 1;
  padding-bottom: 10px;
  margin-bottom: 2px;
  border-bottom: 1px solid var(--mock-divider);
}

#homeAiMock .mock-title {
  margin-left: 8px;
  color: var(--mock-title-color);
  font-weight: 600;
}

#homeAiMock .pipeline--flow {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 16px minmax(0, 1fr) 16px minmax(0, 1fr) 16px minmax(0, 1fr);
  align-items: center;
  justify-items: stretch;
  column-gap: 4px;
  height: 40px;
  margin-bottom: 8px;
  padding: 0;
}

#homeAiMock .pipeline--flow .stage {
  flex: none;
  box-sizing: border-box;
  height: 32px;
  min-height: 32px;
  max-height: 32px;
  margin: 0;
  padding: 0 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  border-radius: 9999px;
  font-size: 11px;
  font-weight: 600;
  text-align: center;
  white-space: nowrap;
  background: var(--pipeline-stage-bg);
  border: 1px solid var(--surface-border-soft);
  transition: box-shadow 0.35s ease, border-color 0.35s ease, background-color 0.35s ease;
  transform: none;
  align-self: center;
}

#homeAiMock .pipeline--flow .stage.blue {
  border-color: rgba(64, 158, 255, 0.35);
  color: var(--pipeline-stage-blue-text);
}

#homeAiMock .pipeline--flow .stage.green {
  border-color: rgba(118, 185, 0, 0.35);
  color: var(--pipeline-stage-green-text);
}

#homeAiMock .pipeline--flow .stage.is-active {
  transform: none;
  box-shadow: 0 0 0 1px var(--surface-border-faint), 0 6px 18px rgba(0, 0, 0, 0.12);
}

[data-theme="light"] #homeAiMock .pipeline--flow .stage.is-active {
  box-shadow: 0 0 0 1px var(--surface-border-soft), 0 6px 18px rgba(15, 23, 42, 0.08);
}

#homeAiMock .pipeline--flow .stage.blue.is-active {
  background: rgba(64, 158, 255, 0.12);
  border-color: rgba(64, 158, 255, 0.55);
}

#homeAiMock .pipeline--flow .stage.green.is-active {
  background: rgba(118, 185, 0, 0.1);
  border-color: rgba(118, 185, 0, 0.55);
}

#homeAiMock .pipeline--flow .arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 32px;
  margin: 0;
  padding: 0;
  align-self: center;
  justify-self: center;
  color: transparent;
  transform: none;
}

#homeAiMock .pipeline--flow .arrow-dot {
  display: block;
  width: 12px;
  height: 2px;
  margin: 0;
  border-radius: 2px;
  background: linear-gradient(90deg, rgba(64, 158, 255, 0.35), rgba(118, 185, 0, 0.65));
  position: relative;
  top: 0;
}

#homeAiMock .pipeline--flow .arrow-dot::after {
  content: '';
  position: absolute;
  right: -1px;
  top: 50%;
  width: 0;
  height: 0;
  border-top: 3px solid transparent;
  border-bottom: 3px solid transparent;
  border-left: 4px solid rgba(118, 185, 0, 0.55);
  transform: translateY(-50%);
}

#homeAiMock .panels {
  position: relative;
  z-index: 1;
  gap: 10px;
  min-height: 0;
}

#homeAiMock .panel {
  background: var(--pipeline-stage-bg);
  border-color: var(--surface-border-soft);
  backdrop-filter: blur(8px);
  min-height: 0;
}

#homeAiMock .panel:has(#lossBars) {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

#homeAiMock .bars {
  position: relative;
  flex: 1;
  display: flex;
  align-items: flex-end;
  gap: 4px;
  min-height: 132px;
  height: 100%;
  padding: 0;
}

#homeAiMock .bars::after {
  content: '↓';
  position: absolute;
  right: 6px;
  top: 4px;
  font-size: 10px;
  line-height: 1;
  color: rgba(118, 185, 0, 0.75);
  font-weight: 700;
  pointer-events: none;
}

#homeAiMock .bars span {
  flex: 1;
  min-width: 0;
  min-height: 6px;
  background: linear-gradient(180deg, rgba(64, 158, 255, 0.95) 0%, rgba(64, 158, 255, 0.35) 100%);
  border-radius: 3px 3px 0 0;
  transform-origin: bottom center;
  animation: home-loss-bar 2.4s ease-in-out infinite alternate;
}

@keyframes home-loss-bar {
  from {
    filter: brightness(0.92);
  }

  to {
    filter: brightness(1.08);
  }
}

#homeAiMock .gpu-bar-row .track {
  height: 8px;
  background: var(--track-deep);
}

#homeAiMock .gpu-bar-row .fill {
  background: linear-gradient(90deg, #409EFF 0%, #76B900 100%);
  box-shadow: 0 0 10px rgba(118, 185, 0, 0.35);
}

#homeAiMock .gpu-bar-row .val {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

@media (prefers-reduced-motion: reduce) {
  #homeAiMock .bars span {
    animation: none;
  }

  #homeEngineMock .engine-step.is-active {
    transform: none;
  }
}

/* 解决方案架构：三层堆叠 */
.arch-stack {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.arch-layer {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 28px;
}

.arch-layer .num-big {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 48px;
  line-height: 1;
  color: var(--arch-num-fg);
  flex: 0 0 auto;
}

.arch-layer.l2 .num-big {
  color: var(--arch-num-green);
}

.arch-layer .ttl-block {
  flex: 1;
}

.arch-layer .ttl-block .top {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 10px;
}

.arch-layer .layer-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--accent-blue-soft);
  display: flex;
  align-items: center;
  justify-content: center;
}

.arch-layer.l2 .layer-icon {
  background: var(--accent-green-soft);
}

.arch-layer .layer-icon .material-symbols-rounded {
  color: var(--accent-blue);
}

.arch-layer.l2 .layer-icon .material-symbols-rounded {
  color: var(--accent-green);
}

.arch-layer .ttl-block h3 {
  font-family: var(--font-heading);
  font-size: 19px;
  font-weight: 700;
}

.arch-layer .ttl-block .en {
  font-family: var(--font-caption);
  font-size: 12px;
  color: var(--fg-muted);
}

.arch-layer .ttl-block p {
  color: var(--fg-secondary);
  font-size: 14px;
  line-height: 1.6;
}

.arch-aside {
  flex: 0 0 240px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 16px;
}

.arch-aside .aside-title {
  font-family: var(--font-caption);
  font-size: 12px;
  color: var(--fg-secondary);
  margin-bottom: 12px;
}

.util-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font-family: var(--font-caption);
  font-size: 11px;
}

.util-row .lbl {
  flex: 0 0 52px;
  color: var(--fg-muted);
}

.util-row .track {
  flex: 1;
  height: 6px;
  background: var(--bg-card);
  border-radius: 3px;
  overflow: hidden;
}

.util-row .fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-green));
  border-radius: 3px;
}

.util-row .v {
  flex: 0 0 auto;
  color: var(--fg-secondary);
  font-weight: 600;
}

/* 核心优势 2×2 */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.adv-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 28px;
  transition: transform 0.15s, border-color 0.15s;
}

.adv-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
}

.adv-card .head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.adv-card .ico {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--accent-blue-soft);
  display: flex;
  align-items: center;
  justify-content: center;
}

.adv-card.green .ico {
  background: var(--accent-green-soft);
}

.adv-card .ico .material-symbols-rounded {
  color: var(--accent-blue);
}

.adv-card.green .ico .material-symbols-rounded {
  color: var(--accent-green);
}

.adv-card h3 {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
}

.adv-card .en {
  font-family: var(--font-caption);
  font-size: 12px;
  color: var(--fg-muted);
}

.adv-card p {
  color: var(--fg-secondary);
  font-size: 14px;
  line-height: 1.6;
}

/* 应用场景 4 列 */
.apps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.app-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 24px;
  transition: transform 0.15s, border-color 0.15s;
}

.app-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
}

.app-card .ico {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-blue-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.app-card.green .ico {
  background: var(--accent-green-soft);
}

.app-card .ico .material-symbols-rounded {
  color: var(--accent-blue);
  font-size: 26px;
}

.app-card.green .ico .material-symbols-rounded {
  color: var(--accent-green);
}

.app-card h3 {
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 700;
}

.app-card .en {
  font-family: var(--font-caption);
  font-size: 11px;
  color: var(--fg-muted);
  margin-bottom: 10px;
}

.app-card p {
  color: var(--fg-secondary);
  font-size: 13px;
  line-height: 1.6;
}

/* 商业价值大数字 */
.big-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.big-stat {
  text-align: center;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 32px 20px;
}

.big-stat .big-num {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 44px;
  line-height: 1;
  background: linear-gradient(120deg, var(--accent-blue), var(--accent-green));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.big-stat .label-row {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 15px;
  color: var(--fg-primary);
  margin-top: 14px;
}

.big-stat .en-small {
  font-family: var(--font-caption);
  font-size: 11px;
  color: var(--fg-muted);
  margin-top: 2px;
}

.big-stat .note {
  font-size: 12px;
  color: var(--fg-secondary);
  margin-top: 8px;
}

/* 开放生态双轮 */
.eco-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.eco-wheels {
  display: flex;
  align-items: center;
  gap: 16px;
}

.eco-wheel {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 12px;
}

.eco-wheel.left {
  border-color: var(--accent-blue);
}

.eco-wheel.right {
  border-color: var(--accent-green);
}

.eco-wheel .em {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 15px;
  margin-top: 8px;
}

.eco-wheel .sub {
  font-family: var(--font-caption);
  font-size: 11px;
  color: var(--fg-secondary);
}

.eco-link {
  width: 32px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-green));
}

/* 首页旗舰高亮区小指标 */
.mini-stats {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 18px 0 24px;
}

.mini-stat {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 10px 16px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 14px;
  color: var(--fg-primary);
}

@media (max-width: 1024px) {

  .adv-grid,
  .apps-grid,
  .big-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .arch-layer {
    flex-wrap: wrap;
  }

  .arch-aside {
    flex: 1 1 100%;
  }

  .arch-layer .num-big {
    font-size: 36px;
  }
}

@media (max-width: 640px) {

  .adv-grid,
  .apps-grid,
  .big-stats {
    grid-template-columns: 1fr;
  }

  .eco-wheels {
    flex-direction: column;
  }

  .eco-link {
    width: 2px;
    height: 24px;
  }
}

[data-theme="light"] .card,
[data-theme="light"] .stat,
[data-theme="light"] .mission-card,
[data-theme="light"] .member,
[data-theme="light"] .adv-card,
[data-theme="light"] .app-card,
[data-theme="light"] .big-stat,
[data-theme="light"] .mini-stat,
[data-theme="light"] .engine-mock,
[data-theme="light"] .stage-mini,
[data-theme="light"] .eco-wheel {
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06);
}

[data-theme="light"] .section-bg-elevated .card,
[data-theme="light"] .section-bg-elevated .stat,
[data-theme="light"] .section-bg-elevated .member {
  border-color: var(--border-subtle);
}

[data-theme="light"] .visual-art__image {
  opacity: 0.22;
  mix-blend-mode: multiply;
}

[data-theme="light"] .visual-art--sim .visual-art__image,
[data-theme="light"] #homeEngineMock .visual-art__image {
  display: none;
}

[data-theme="light"] .mission-visual .visual-art__image,
[data-theme="light"] .visual-art--team .visual-art__image {
  display: none;
}

[data-theme="light"] .visual-art::before {
  opacity: 0.38;
}

[data-theme="light"] .scene-cv-overlay {
  display: none;
}

[data-theme="light"] .scene-cv .bbox {
  box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.12);
}

[data-theme="light"] .scene-ad svg>path:nth-child(1),
[data-theme="light"] .scene-ad svg>path:nth-child(3) {
  stroke: var(--border-strong);
}

[data-theme="light"] .scene-ad svg>path:nth-child(2),
[data-theme="light"] .scene-ad svg>path:nth-child(4) {
  stroke: rgba(15, 23, 42, 0.22);
}

[data-theme="light"] .bbox .tag {
  color: #FFFFFF;
}

[data-theme="light"] .about-hero .bg {
  opacity: 0.85;
}

[data-theme="light"] .about-hero .content {
  background: rgba(255, 255, 255, 0.78);
  border-color: var(--border-subtle);
  box-shadow: 0 12px 40px rgba(15, 23, 42, 0.08);
}

[data-theme="light"] .gpu-card {
  box-shadow: 0 0 40px rgba(118, 185, 0, 0.18);
}

[data-theme="light"] .glow-dot {
  opacity: 0.65;
}

[data-theme="light"] .mock,
[data-theme="light"] .scene:not(.scene-cv) {
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06);
}

[data-theme="light"] .pipeline .stage {
  color: var(--fg-primary);
}

[data-theme="light"] .tag {
  background: var(--bg-card);
}

[data-theme="light"] .footer-bot {
  border-top-color: var(--border-subtle);
}

[data-theme="light"] .visual-art--gen .visual-art__image {
  display: none;
}

[data-theme="light"] .visual-art--gen::before {
  opacity: 0.45;
}

[data-theme="light"] .visual-art--gen::after {
  background:
    radial-gradient(circle at 18% 20%, rgba(64, 158, 255, 0.07), transparent 34%),
    radial-gradient(circle at 86% 82%, rgba(118, 185, 0, 0.06), transparent 36%);
}

[data-theme="light"] .visual-art--gen.scene-gen {
  background: linear-gradient(135deg, #FFFFFF 0%, #FAFBFC 100%);
}

[data-theme="light"] .gen-tile::after {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0) 52%, rgba(15, 23, 42, 0.12) 100%),
    radial-gradient(circle at 50% 0%, rgba(118, 185, 0, 0.1), transparent 56%);
}

[data-theme="light"] .visual-art--platform .visual-art__image {
  display: none;
}

[data-theme="light"] .visual-art--platform::before {
  opacity: 0.45;
}

[data-theme="light"] .visual-art--platform::after {
  background:
    radial-gradient(circle at 18% 20%, rgba(64, 158, 255, 0.07), transparent 34%),
    radial-gradient(circle at 86% 82%, rgba(118, 185, 0, 0.06), transparent 36%);
}

[data-theme="light"] .visual-art--platform.mock {
  background: linear-gradient(135deg, #FFFFFF 0%, #FAFBFC 100%);
}

[data-theme="light"] .visual-art--sim::before {
  opacity: 0.45;
}

[data-theme="light"] .visual-art--sim::after {
  background:
    radial-gradient(circle at 18% 20%, rgba(64, 158, 255, 0.07), transparent 34%),
    radial-gradient(circle at 86% 82%, rgba(118, 185, 0, 0.06), transparent 36%);
}

[data-theme="light"] .visual-art--sim.engine-mock {
  background: linear-gradient(135deg, #FFFFFF 0%, #FAFBFC 100%);
}

[data-theme="light"] .visual-art::after {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.92) 0%, rgba(255, 255, 255, 0.68) 48%, rgba(255, 255, 255, 0.42) 100%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.35) 0%, rgba(255, 255, 255, 0.62) 100%);
}

[data-theme="light"] .visual-art--team::before,
[data-theme="light"] .mission-visual.visual-art--team::before {
  opacity: 0.45;
}

[data-theme="light"] .visual-art--team::after,
[data-theme="light"] .mission-visual.visual-art--team::after {
  background:
    radial-gradient(circle at 18% 20%, rgba(64, 158, 255, 0.07), transparent 34%),
    radial-gradient(circle at 86% 82%, rgba(118, 185, 0, 0.06), transparent 36%);
}

[data-theme="light"] .mission-visual.visual-art--team {
  background: linear-gradient(135deg, #FFFFFF 0%, #FAFBFC 100%);
}

[data-theme="light"] .mock,
[data-theme="light"] .scene:not(.scene-cv),
[data-theme="light"] .mission-visual,
[data-theme="light"] .engine-mock {
  background: linear-gradient(135deg, #FFFFFF 0%, #FAFBFC 100%);
}

[data-theme="light"] .engine-step {
  background: var(--bg-card);
}

[data-theme="light"] .backing-right {
  background: radial-gradient(circle at 50% 50%, rgba(118, 185, 0, 0.07) 0%, #FFFFFF 68%);
}

[data-theme="light"] .seal {
  border-color: var(--border-subtle);
  box-shadow: 0 0 48px rgba(64, 158, 255, 0.24);
}

[data-theme="light"] .panel-title,
[data-theme="light"] .mock-head,
[data-theme="light"] #homeAiMock .gpu-bar-row .lbl {
  color: var(--fg-secondary);
}

[data-theme="light"] .engine-mock .label-row {
  color: var(--fg-secondary);
}

[data-theme="light"] .section-bg-gradient {
  background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-elevated) 100%);
}

/* ===== GSAP 动效支持 ===== */

/* 导航栏滚动态：滚动后加深背景与阴影 */
.navbar {
  transition: box-shadow 0.3s ease, background 0.3s ease;
}

.navbar.scrolled {
  background: var(--navbar-scrolled-bg);
  box-shadow: var(--navbar-shadow);
}

/* 装饰性循环元素开启合成层，动画更顺滑 */
.gpu-cell,
.glow-dot,
.eco-wheel,
.seal,
.about-hero .glow,
.visual-art__image,
.visual-art__orb {
  will-change: transform, opacity;
}

/* 防闪烁：启用 JS 时预隐藏将被 GSAP 揭示的元素；JS 揭示后由内联样式覆盖。
   若用户偏好减弱动效，anim.js 会在初始化时立即 set 为可见，不会卡在隐藏态。 */
.has-js .section-head,
.has-js .cards-4>.card,
.has-js .two-col>div,
.has-js .nvidia-sec .tag,
.has-js .stats>.stat,
.has-js .cta h2,
.has-js .cta p,
.has-js .cta-actions,
.has-js footer .footer-grid>div,
.has-js .arch-stack>.arch-layer,
.has-js .adv-grid>.adv-card,
.has-js .apps-grid>.app-card,
.has-js .big-stats>.big-stat,
.has-js .eco-visual,
.has-js .mission-with-visual>.visual-art,
.has-js .mission-cards>.mission-card,
.has-js .team>.member,
.has-js .backing>div,
.has-js .gen-grid>.gen-tile,
.has-js .hero .badge,
.has-js .hero h1,
.has-js .hero .subtitle,
.has-js .hero .desc,
.has-js .hero .mini-stats,
.has-js .hero .hero-actions,
.has-js .hero-visual,
.has-js .hero .engine-mock,
.has-js .page-hero .badge,
.has-js .page-hero h1,
.has-js .page-hero p,
.has-js .about-hero .badge,
.has-js .about-hero h1,
.has-js .about-hero p {
  opacity: 0;
}

@media (max-width: 1024px) {

  .visual-art--sim .engine-pipeline,
  .visual-art--sim .modality-chips,
  .visual-art--platform .pipeline,
  .visual-art--platform .panel {
    max-width: none;
  }

  .visual-art__image {
    opacity: 0.42;
  }

  .mission-with-visual {
    grid-template-columns: 1fr;
  }

  .team-node {
    width: 70px;
    height: 70px;
  }

  .mission-cards {
    grid-template-columns: 1fr;
  }

  .mission-cards .mission-card:last-child {
    grid-column: auto;
  }
}

@media (max-width: 640px) {

  .visual-art--sim.engine-mock,
  .visual-art--gen.scene-gen {
    min-height: 510px;
    height: auto;
    aspect-ratio: auto;
  }

  .visual-art--platform.mock {
    height: auto;
    aspect-ratio: auto;
  }

  .visual-art--platform .panel {
    flex: 0 0 180px;
  }

  .visual-art__caption {
    position: relative;
    right: auto;
    bottom: auto;
    align-self: flex-start;
    margin-top: 4px;
    max-width: 100%;
  }

  .visual-art__image {
    opacity: 0.3;
  }

  .visual-art__orb {
    opacity: 0.5;
  }
}