/* ===== CSS VARIABLES ===== */
:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-card: rgba(255,255,255,0.03);
  --bg-card-hover: rgba(255,255,255,0.06);
  --border-subtle: rgba(255,255,255,0.06);
  --border-hover: rgba(255,255,255,0.12);
  --text-primary: #ffffff;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --accent: #9970f3;
  --accent-light: #c084fc;
  --accent-dark: #7c3aed;
  --gradient-accent: linear-gradient(135deg, #8F54F9, #c084fc);
  --gradient-hero: linear-gradient(135deg, #8F54F9 0%, #6366f1 50%, #3b82f6 100%);
  --glow-purple: rgba(153,112,243,0.15);
  --glow-blue: rgba(99,102,241,0.1);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --container: 1200px;
  --nav-h: 72px;
}

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ===== UTILITIES ===== */
.gradient-text {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.16,1,0.3,1), transform 0.7s cubic-bezier(0.16,1,0.3,1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== NAVIGATION ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  transition: background 0.3s, backdrop-filter 0.3s, box-shadow 0.3s;
}
.nav.scrolled {
  background: rgba(10,10,15,0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border-subtle);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.2rem;
}
.logo-icon {
  font-size: 1.4rem;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color 0.2s;
  font-weight: 500;
}
.nav-links a:hover { color: var(--text-primary); }
.nav-cta {
  background: var(--gradient-accent) !important;
  color: white !important;
  padding: 8px 20px !important;
  border-radius: 100px;
  font-weight: 600 !important;
  transition: transform 0.2s, box-shadow 0.2s !important;
}
.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--glow-purple);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 40px) 0 60px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
#particleCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  animation: glowFloat 8s ease-in-out infinite;
}
.hero-glow-1 {
  width: 600px;
  height: 600px;
  background: var(--glow-purple);
  top: -200px;
  right: -100px;
}
.hero-glow-2 {
  width: 500px;
  height: 500px;
  background: var(--glow-blue);
  bottom: -200px;
  left: -100px;
  animation-delay: -4s;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}
.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 100px;
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}
.badge-dot {
  width: 6px;
  height: 6px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse 2s infinite;
}
.hero-title {
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.hero-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 520px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.hero-meta {
  display: flex;
  gap: 20px;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.hero-scroll-hint {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-muted);
  animation: bounceDown 2s infinite;
}
.scroll-arrow { font-size: 1rem; margin-top: 4px; }

/* Hero Mockup */
.hero-visual { position: relative; }
.hero-mockup {
  display: flex;
  align-items: center;
  gap: 20px;
  position: relative;
}
.mockup-browser {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  animation: floatY 6s ease-in-out infinite;
}
.browser-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--border-subtle);
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.r { background: #ff5f57; }
.dot.y { background: #ffbd2e; }
.dot.g { background: #28ca41; }
.browser-url {
  flex: 1;
  margin-left: 10px;
  padding: 5px 12px;
  background: rgba(255,255,255,0.05);
  border-radius: 6px;
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}
.url-cursor { animation: blink 1s infinite; }
.browser-body { padding: 20px; min-height: 180px; }
.browser-placeholder { text-align: center; }
.placeholder-house {
  width: 80px;
  margin: 0 auto 16px;
  position: relative;
}
.house-roof {
  width: 0;
  height: 0;
  border-left: 45px solid transparent;
  border-right: 45px solid transparent;
  border-bottom: 30px solid var(--accent);
  opacity: 0.6;
}
.house-body {
  background: rgba(153,112,243,0.2);
  border: 1px solid rgba(153,112,243,0.3);
  border-radius: 0 0 4px 4px;
  height: 50px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 6px;
  padding: 8px;
}
.house-window {
  width: 14px;
  height: 14px;
  background: rgba(153,112,243,0.4);
  border-radius: 2px;
}
.house-door {
  width: 12px;
  height: 20px;
  background: rgba(153,112,243,0.5);
  border-radius: 2px 2px 0 0;
}
.placeholder-lines { display: flex; flex-direction: column; gap: 8px; align-items: center; }
.p-line { height: 6px; background: rgba(255,255,255,0.06); border-radius: 3px; }
.w80 { width: 80%; }
.w70 { width: 70%; }
.w60 { width: 60%; }
.w50 { width: 50%; }
.w90 { width: 90%; }

.mockup-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
}
.arrow-line {
  width: 40px;
  height: 2px;
  background: var(--gradient-accent);
  position: relative;
}
.arrow-line::after {
  content: '';
  position: absolute;
  right: -2px;
  top: -4px;
  border: 5px solid transparent;
  border-left-color: var(--accent);
}
.arrow-label { white-space: nowrap; }

.mockup-phone {
  width: 140px;
  background: #1a1a2e;
  border: 2px solid rgba(255,255,255,0.1);
  border-radius: 20px;
  overflow: hidden;
  animation: floatY 6s ease-in-out infinite;
  animation-delay: -3s;
}
.phone-notch {
  width: 50px;
  height: 6px;
  background: #0a0a0f;
  border-radius: 0 0 8px 8px;
  margin: 0 auto;
}
.phone-screen { padding: 8px; }
.phone-video {
  background: linear-gradient(135deg, rgba(153,112,243,0.2), rgba(99,102,241,0.2));
  border-radius: 8px;
  height: 140px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}
.video-play-btn {
  width: 32px;
  height: 32px;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  backdrop-filter: blur(4px);
}
.video-progress {
  position: absolute;
  bottom: 8px;
  left: 8px;
  right: 8px;
  height: 3px;
  background: rgba(255,255,255,0.1);
  border-radius: 2px;
}
.video-progress-bar {
  width: 60%;
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  animation: progressGrow 3s ease-in-out infinite;
}
.video-tags {
  display: flex;
  gap: 4px;
  margin-top: 8px;
}
.v-tag {
  padding: 2px 6px;
  background: rgba(153,112,243,0.3);
  border-radius: 4px;
  font-size: 0.55rem;
}
.phone-info { padding: 8px 4px; display: flex; flex-direction: column; gap: 6px; }
.info-line { height: 5px; background: rgba(255,255,255,0.08); border-radius: 3px; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.3s cubic-bezier(0.16,1,0.3,1);
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient-accent);
  color: white;
  box-shadow: 0 2px 20px var(--glow-purple);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(153,112,243,0.3);
}
.btn-ghost {
  background: transparent;
  border: 1px solid var(--border-hover);
  color: var(--text-primary);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.05);
  border-color: var(--accent);
}
.btn-outline {
  border: 1px solid var(--border-hover);
  color: var(--text-primary);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.05);
  border-color: var(--accent);
}
.btn-block { width: 100%; justify-content: center; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.play-icon {
  width: 24px;
  height: 24px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
}

/* ===== TRUST BAR ===== */
.trust-bar {
  padding: 40px 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}
.trust-label {
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.trust-label strong { color: var(--text-primary); }
.trust-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}
.trust-logo-item {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  opacity: 0.5;
  transition: opacity 0.3s;
  letter-spacing: 0.05em;
}
.trust-logo-item:hover { opacity: 0.8; }
.trust-logo-img {
  height: 38px;
  filter: grayscale(1) brightness(1.05);
  opacity: 0.55;
  transition: all 0.3s;
}
.trust-logo-item:hover .trust-logo-img {
  opacity: 0.85;
  filter: grayscale(0.5) brightness(1.05);
}

/* ===== SECTION HEADERS ===== */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-tag {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(153,112,243,0.1);
  border: 1px solid rgba(153,112,243,0.2);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== COMPARE ===== */
.compare { padding: 100px 0; }
.compare-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: center;
}
.compare-card {
  padding: 36px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
}
.compare-before {
  background: rgba(239,68,68,0.03);
  border-color: rgba(239,68,68,0.1);
}
.compare-after {
  background: rgba(153,112,243,0.03);
  border-color: rgba(153,112,243,0.15);
}
.compare-label {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(239,68,68,0.1);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #ef4444;
  margin-bottom: 16px;
}
.compare-label.accent {
  background: rgba(153,112,243,0.1);
  color: var(--accent);
}
.compare-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 20px;
}
.compare-list { display: flex; flex-direction: column; gap: 14px; }
.compare-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
}
.compare-list li strong { color: var(--text-primary); }
.cx { color: #ef4444; font-weight: 700; flex-shrink: 0; }
.ck { color: #22c55e; font-weight: 700; flex-shrink: 0; }
.compare-vs {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-muted);
  padding: 16px;
  background: var(--bg-card);
  border-radius: 50%;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===== FEATURES BENTO GRID ===== */
.features { padding: 100px 0; }
.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: auto;
  gap: 16px;
}
.bento-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.4s cubic-bezier(0.16,1,0.3,1);
  position: relative;
  overflow: hidden;
}
.bento-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(153,112,243,0.08), transparent 60%);
  opacity: 0;
  transition: opacity 0.3s;
}
.bento-card:hover::before { opacity: 1; }
.bento-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}
.bento-large { grid-column: span 2; }
.bento-wide { grid-column: span 2; }
.bento-icon {
  font-size: 2rem;
  margin-bottom: 16px;
  display: inline-block;
}
.bento-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.bento-card > p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}
/* Bento demos */
.bento-demo { display: flex; align-items: center; gap: 12px; }
.bento-input { flex: 1; }
.input-label { font-size: 0.7rem; color: var(--text-muted); margin-bottom: 4px; display: block; }
.input-bar {
  padding: 8px 12px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  font-size: 0.75rem;
  color: var(--text-muted);
}
.bento-arrow-down { color: var(--accent); font-size: 1.2rem; }
.bento-output { flex: 0; }
.output-video {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: rgba(153,112,243,0.1);
  border-radius: 8px;
  font-size: 0.75rem;
  color: var(--accent);
}
.mini-play {
  width: 20px;
  height: 20px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.5rem;
  color: white;
}
.bento-visual { margin-top: 4px; }
.before-after-mini {
  display: flex;
  align-items: center;
  gap: 8px;
}
.ba-side {
  flex: 1;
  padding: 12px;
  border-radius: 8px;
  text-align: center;
  font-size: 0.75rem;
  font-weight: 600;
  position: relative;
}
.ba-before { background: rgba(255,255,255,0.05); color: var(--text-muted); }
.ba-after { background: rgba(153,112,243,0.1); color: var(--accent); }
.ba-arrow { color: var(--text-muted); font-size: 0.9rem; }
.ba-sparkle {
  position: absolute;
  top: -4px;
  right: -4px;
  font-size: 0.8rem;
  animation: sparkle 2s infinite;
}
.news-mini { display: flex; flex-direction: column; gap: 8px; }
.news-ticker {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.7rem;
}
.news-ticker span { color: #ef4444; font-weight: 700; }
.ticker-text { color: var(--text-muted); }
.news-keypoints { display: flex; gap: 6px; }
.kp {
  padding: 3px 8px;
  background: rgba(153,112,243,0.15);
  border-radius: 4px;
  font-size: 0.65rem;
  color: var(--accent-light);
}
.digital-human-mini {
  display: flex;
  align-items: center;
  gap: 14px;
}
.dh-avatar {
  width: 48px;
  height: 48px;
  background: var(--gradient-accent);
  border-radius: 50%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.dh-face {
  width: 20px;
  height: 20px;
  background: rgba(255,255,255,0.3);
  border-radius: 50%;
}
.dh-pulse {
  position: absolute;
  inset: -4px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  opacity: 0;
  animation: pulseRing 2s infinite;
}
.dh-info { flex: 1; }
.dh-name { font-size: 0.8rem; font-weight: 600; margin-bottom: 2px; }
.dh-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.7rem;
  color: var(--text-muted);
}
.status-dot {
  width: 6px;
  height: 6px;
  background: #22c55e;
  border-radius: 50%;
}
.voice-wave-mini {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  height: 32px;
}
.vw-bar {
  width: 3px;
  background: var(--accent);
  border-radius: 2px;
  animation: waveBar 1.2s ease-in-out infinite;
}
.vw-bar:nth-child(1) { height: 30%; animation-delay: 0s; }
.vw-bar:nth-child(2) { height: 60%; animation-delay: 0.1s; }
.vw-bar:nth-child(3) { height: 90%; animation-delay: 0.2s; }
.vw-bar:nth-child(4) { height: 50%; animation-delay: 0.3s; }
.vw-bar:nth-child(5) { height: 80%; animation-delay: 0.4s; }
.vw-bar:nth-child(6) { height: 40%; animation-delay: 0.5s; }
.vw-bar:nth-child(7) { height: 70%; animation-delay: 0.6s; }
.vw-bar:nth-child(8) { height: 35%; animation-delay: 0.7s; }
.styles-mini { display: flex; flex-wrap: wrap; gap: 6px; }
.style-chip {
  padding: 4px 10px;
  border-radius: 100px;
  font-size: 0.65rem;
  font-weight: 600;
}
.s1 { background: rgba(59,130,246,0.15); color: #60a5fa; }
.s2 { background: rgba(239,68,68,0.15); color: #f87171; }
.s3 { background: rgba(153,112,243,0.15); color: #c084fc; }
.s4 { background: rgba(34,197,94,0.15); color: #4ade80; }

/* Teleprompter marks (shared by bento card & use-case mock) */
.tp-em {
  font-style: normal;
  font-weight: 800;
  color: #ff8f5a;
  background: rgba(255,107,53,0.14);
  border-radius: 4px;
  padding: 0 3px;
}
.tp-up, .tp-down, .tp-pause {
  display: inline-block;
  margin: 0 3px;
  font-weight: 800;
}
.tp-up { color: #4ade80; }
.tp-down { color: #60a5fa; }
.tp-pause {
  color: var(--text-muted);
  background: rgba(255,255,255,0.08);
  border-radius: 3px;
  padding: 0 4px;
}
/* Bento: teleprompter mini */
.prompter-mini {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px 14px;
  background: rgba(0,0,0,0.25);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
}
.pm-line-row {
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--text-primary);
}
.pm-line-row.dim { color: var(--text-muted); }

/* ===== HOW IT WORKS ===== */
.how-it-works { padding: 100px 0; }
.steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
}
.step {
  text-align: center;
  flex: 1;
  max-width: 280px;
  padding: 0 20px;
}
.step-number {
  font-size: 3rem;
  font-weight: 900;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.3;
  margin-bottom: 8px;
}
.step-icon { font-size: 2.4rem; margin-bottom: 16px; }
.step h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.step p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }
.step-connector {
  display: flex;
  align-items: center;
  padding-top: 60px;
}
.connector-line {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0.3;
}

/* ===== USE CASES ===== */
.use-cases { padding: 100px 0; }
.tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.tab {
  padding: 10px 24px;
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  transition: all 0.3s;
}
.tab:hover { color: var(--text-primary); border-color: var(--border-hover); }
.tab.active {
  background: var(--gradient-accent);
  color: white;
  border-color: transparent;
}
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeIn 0.4s ease; }
.panel-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.panel-text h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
}
.panel-text > p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}
.panel-features { display: flex; flex-direction: column; gap: 12px; }
.panel-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.panel-features li::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}
.panel-visual { display: flex; justify-content: center; }
/* Phone mockup for panels */
.phone-mockup {
  width: 240px;
  background: #1a1a2e;
  border: 2px solid rgba(255,255,255,0.08);
  border-radius: 28px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.pm-notch {
  width: 80px;
  height: 8px;
  background: #0a0a0f;
  border-radius: 0 0 10px 10px;
  margin: 0 auto;
}
.pm-screen { padding: 12px; }
.pm-header {
  text-align: center;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 8px;
  color: var(--text-secondary);
}
.pm-video-area {
  background: linear-gradient(135deg, rgba(153,112,243,0.15), rgba(99,102,241,0.15));
  border-radius: 12px;
  height: 200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  margin-bottom: 12px;
}
.pm-play {
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  backdrop-filter: blur(4px);
  margin-bottom: 12px;
}
.pm-tags { display: flex; gap: 6px; }
.pm-tags span {
  padding: 3px 8px;
  background: rgba(153,112,243,0.25);
  border-radius: 4px;
  font-size: 0.65rem;
}
.pm-info-lines { display: flex; flex-direction: column; gap: 6px; padding: 4px; }
.pm-line { height: 5px; background: rgba(255,255,255,0.06); border-radius: 3px; }
.pm-actions {
  display: flex;
  gap: 8px;
  padding: 12px 4px 8px;
}
.pm-btn {
  flex: 1;
  text-align: center;
  padding: 8px;
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-subtle);
}
.pm-btn.primary { background: var(--gradient-accent); border-color: transparent; }
/* News variant */
.news-header { color: #f87171 !important; }
.news-area { background: linear-gradient(135deg, rgba(239,68,68,0.1), rgba(153,112,243,0.1)); }
.news-headline {
  font-size: 1rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 12px;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.news-kp-row { display: flex; gap: 8px; justify-content: center; margin-bottom: 12px; }
.nkp {
  padding: 4px 10px;
  background: rgba(153,112,243,0.2);
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent-light);
}
.news-ticker-bar {
  width: 100%;
  padding: 6px 10px;
  background: rgba(0,0,0,0.3);
  font-size: 0.65rem;
  color: var(--text-muted);
  border-radius: 0 0 12px 12px;
  position: absolute;
  bottom: 0;
  overflow: hidden;
  white-space: nowrap;
  animation: tickerScroll 8s linear infinite;
}
/* Oral / teleprompter variant */
.oral-header { color: #ff8f5a !important; }
.oral-area {
  background: linear-gradient(135deg, rgba(255,107,53,0.12), rgba(153,112,243,0.1));
  justify-content: flex-start;
  padding: 16px 12px 34px;
  position: relative;
}
.oral-script { display: flex; flex-direction: column; gap: 12px; width: 100%; }
.os-line {
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--text-muted);
  text-align: left;
}
.os-line.active {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.85rem;
}
.os-line.dim { opacity: 0.6; }
.oral-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 6px 10px;
  background: rgba(0,0,0,0.3);
  border-radius: 0 0 12px 12px;
  font-size: 0.62rem;
  color: var(--text-muted);
  text-align: center;
}
/* System integration variant (system-area / sys-*) */
.system-area {
  background: linear-gradient(135deg, rgba(59,130,246,0.1), rgba(153,112,243,0.1));
  justify-content: flex-start;
  padding: 14px 12px;
  gap: 10px;
}
.sys-house {
  width: 100%;
  padding: 10px 12px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
}
.sys-house-name { font-size: 0.78rem; font-weight: 700; color: var(--text-primary); margin-bottom: 4px; }
.sys-house-meta { font-size: 0.62rem; color: var(--text-muted); margin-bottom: 8px; }
.sys-house-thumbs { display: flex; gap: 6px; }
.sys-house-thumbs span {
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(153,112,243,0.15);
  border-radius: 6px;
  font-size: 0.85rem;
}
.sys-cta {
  width: 100%;
  padding: 8px 12px;
  background: var(--gradient-accent);
  border-radius: 8px;
  text-align: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: #fff;
}
.sys-progress {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.6rem;
  color: var(--text-muted);
  text-align: center;
}
.sys-progress-bar {
  height: 4px;
  background: var(--gradient-accent);
  border-radius: 2px;
  animation: sysProgress 2.4s ease-in-out infinite;
}
@keyframes sysProgress {
  0%   { width: 10%; }
  60%  { width: 90%; }
  100% { width: 10%; }
}
/* Digital human variant */
.dh-area { flex-direction: column; gap: 12px; }
.dh-demo-avatar {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.dh-demo-head {
  width: 40px;
  height: 40px;
  background: var(--gradient-accent);
  border-radius: 50%;
  margin-bottom: 4px;
}
.dh-demo-body {
  width: 60px;
  height: 30px;
  background: var(--gradient-accent);
  border-radius: 30px 30px 0 0;
  opacity: 0.7;
}
.dh-speech {
  padding: 6px 12px;
  background: rgba(255,255,255,0.1);
  border-radius: 12px;
  font-size: 0.7rem;
  color: var(--text-secondary);
  text-align: center;
}
/* Batch variant */
.batch-visual { width: 100%; }
.batch-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
}
.batch-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  background: rgba(255,255,255,0.02);
  border-radius: 8px;
  font-size: 0.8rem;
}
.batch-status {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  flex-shrink: 0;
}
.batch-status.done { background: rgba(34,197,94,0.15); color: #22c55e; }
.batch-status.processing { background: rgba(153,112,243,0.15); color: var(--accent); animation: spin 2s linear infinite; }
.batch-status.pending { background: rgba(255,255,255,0.05); color: var(--text-muted); }
.batch-summary {
  text-align: center;
  margin-top: 12px;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.batch-summary strong { color: var(--accent); }

/* ===== STATS ===== */
.stats {
  padding: 80px 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-item { padding: 20px; }
.stat-number {
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 900;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline;
}
.stat-suffix {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent);
  display: inline;
}
.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 8px;
}

/* ===== TESTIMONIALS ===== */
.testimonials { padding: 100px 0; }
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.testimonial-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: border-color 0.3s, transform 0.3s;
}
.testimonial-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}
.tc-stars {
  color: #fbbf24;
  font-size: 0.9rem;
  letter-spacing: 2px;
  margin-bottom: 16px;
}
.tc-quote {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
  font-style: italic;
}
.tc-author { display: flex; align-items: center; gap: 12px; }
.tc-avatar {
  width: 40px;
  height: 40px;
  background: var(--gradient-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}
.tc-name { font-size: 0.9rem; font-weight: 600; }
.tc-role { font-size: 0.75rem; color: var(--text-muted); }

/* ===== PRICING ===== */
.pricing { padding: 100px 0; }
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  align-items: start;
  /* 移除基础版后仅两档方案，收窄并居中，避免卡片过宽 */
  max-width: 880px;
  margin: 0 auto;
}
.price-card {
  padding: 36px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  position: relative;
  transition: border-color 0.3s, transform 0.3s;
}
.price-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}
.price-popular {
  border-color: var(--accent);
  background: rgba(153,112,243,0.04);
  transform: scale(1.03);
}
.price-popular:hover { transform: scale(1.03) translateY(-4px); }
.price-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 16px;
  background: var(--gradient-accent);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  white-space: nowrap;
}
.price-header { text-align: center; margin-bottom: 28px; }
.price-header h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 12px; }
.price-amount { font-size: 2rem; font-weight: 900; }
.price-num { font-size: 2.5rem; }
.price-unit { font-size: 0.9rem; font-weight: 400; color: var(--text-muted); }
.price-desc { font-size: 0.85rem; color: var(--text-muted); margin-top: 8px; }
.price-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}
.price-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.price-features li::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}
.pricing-note {
  text-align: center;
  margin-top: 32px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ===== FAQ ===== */
.faq { padding: 100px 0; }
.faq-list { max-width: 720px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--border-subtle);
}
.faq-q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  transition: color 0.2s;
}
.faq-q:hover { color: var(--accent); }
.faq-toggle {
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--text-muted);
  transition: transform 0.3s;
  flex-shrink: 0;
  margin-left: 16px;
}
.faq-item.open .faq-toggle { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.16,1,0.3,1), padding 0.3s;
}
.faq-item.open .faq-a { max-height: 200px; padding-bottom: 20px; }
.faq-a p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== CTA ===== */
.cta-section {
  padding: 120px 0;
  position: relative;
  overflow: hidden;
}
.cta-bg-glow {
  position: absolute;
  width: 800px;
  height: 400px;
  background: radial-gradient(ellipse, var(--glow-purple), transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  filter: blur(80px);
}
.cta-content {
  position: relative;
  text-align: center;
}
.cta-content h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.cta-content > p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
}
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== BUSINESS CONTACT ===== */
.biz-contact {
  padding: 0 0 100px;
}
.biz-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 56px;
  padding: 48px 56px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s, background 0.3s;
}
.biz-card::before {
  content: '';
  position: absolute;
  width: 520px;
  height: 320px;
  top: -120px;
  right: -80px;
  background: radial-gradient(ellipse, var(--glow-purple), transparent 70%);
  filter: blur(70px);
  pointer-events: none;
}
.biz-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}
.biz-info {
  position: relative;
  flex: 1;
  min-width: 0;
}
.biz-tag {
  display: inline-block;
  padding: 4px 14px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--accent-light);
  background: rgba(153, 112, 243, 0.1);
  border: 1px solid rgba(153, 112, 243, 0.2);
  border-radius: 999px;
  margin-bottom: 18px;
}
.biz-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.biz-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
  max-width: 520px;
}
.biz-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.biz-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.biz-check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  font-size: 0.7rem;
  color: #fff;
  background: var(--gradient-accent);
  border-radius: 50%;
}
.biz-qr {
  position: relative;
  flex-shrink: 0;
  text-align: center;
}
.biz-qr-frame {
  padding: 14px;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(153, 112, 243, 0.18);
  transition: transform 0.3s;
}
.biz-qr-frame:hover { transform: translateY(-4px); }
.biz-qr-img {
  display: block;
  width: 180px;
  height: 180px;
  border-radius: var(--radius-sm);
  object-fit: contain;
}
.biz-qr-tip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 14px;
  font-size: 0.83rem;
  color: var(--text-muted);
}
.biz-qr-icon { font-size: 0.9rem; }

/* ===== FOOTER ===== */
.footer {
  padding: 60px 0 30px;
  border-top: 1px solid var(--border-subtle);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 12px;
  line-height: 1.6;
}
.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}
.footer-col a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--text-primary); }
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}
.footer-bottom p { font-size: 0.8rem; color: var(--text-muted); }

/* ===== KEYFRAMES ===== */
@keyframes glowFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -20px) scale(1.1); }
}
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
@keyframes pulseRing {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.5); opacity: 0; }
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}
@keyframes progressGrow {
  0% { width: 0; }
  80% { width: 100%; }
  100% { width: 100%; }
}
@keyframes bounceDown {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}
@keyframes sparkle {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}
@keyframes waveBar {
  0%, 100% { transform: scaleY(1); }
  50% { transform: scaleY(0.4); }
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
@keyframes tickerScroll {
  0% { transform: translateX(100%); }
  100% { transform: translateX(-100%); }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; text-align: center; }
  .hero-desc { margin: 0 auto 32px; }
  .hero-actions { justify-content: center; }
  .hero-meta { justify-content: center; }
  .hero-visual { margin-top: 40px; }
  .bento-grid { grid-template-columns: repeat(2, 1fr); }
  .bento-large, .bento-wide { grid-column: span 2; }
  .compare-grid { grid-template-columns: 1fr; }
  .compare-vs { margin: 0 auto; }
  .panel-content { grid-template-columns: 1fr; }
  .panel-visual { order: -1; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
  .price-popular { transform: none; }
  .price-popular:hover { transform: translateY(-4px); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .biz-card { gap: 40px; padding: 40px; }
  .biz-qr-img { width: 160px; height: 160px; }
  /* logo 文案变长后，中等宽度下收紧导航，避免与菜单挤压 */
  .nav-links { gap: 20px; }
  .nav-logo { font-size: 1.05rem; }
}
@media (max-width: 768px) {
  :root { --nav-h: 60px; }
  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: rgba(10,10,15,0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    transform: translateY(-120%);
    transition: transform 0.3s;
    border-bottom: 1px solid var(--border-subtle);
  }
  .nav-links.open { transform: translateY(0); }
  .nav-toggle { display: flex; }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .hero { min-height: auto; padding: calc(var(--nav-h) + 30px) 0 40px; }
  .hero-mockup { flex-direction: column; }
  .mockup-arrow { transform: rotate(90deg); }
  .bento-grid { grid-template-columns: 1fr; }
  .bento-large, .bento-wide { grid-column: span 1; }
  .steps { flex-direction: column; align-items: center; }
  .step-connector { padding: 12px 0; }
  .connector-line { width: 2px; height: 30px; }
  .biz-card { flex-direction: column; text-align: center; gap: 32px; padding: 32px 24px; }
  .biz-desc { margin-left: auto; margin-right: auto; }
  .biz-list li { justify-content: center; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .tabs { gap: 6px; }
  .tab { padding: 8px 16px; font-size: 0.8rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .hero-scroll-hint { display: none; }
  .trust-logos { gap: 20px; }
  .trust-logo-item { font-size: 0.8rem; }
}
@media (max-width: 480px) {
  .hero-title { font-size: 2rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-meta { flex-direction: column; align-items: center; gap: 8px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .compare-card { padding: 24px; }
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ===== CONTACT MODAL ===== */
.contact-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
}
.contact-modal.open { display: flex; }
.contact-mask {
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 15, 0.7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  animation: fadeIn 0.25s ease;
}
.contact-card {
  position: relative;
  width: 360px;
  max-width: calc(100vw - 32px);
  padding: 32px 28px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
  text-align: center;
  animation: modalIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.contact-close {
  position: absolute;
  top: 12px;
  right: 14px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  transition: all 0.2s;
}
.contact-close:hover {
  background: rgba(255,255,255,0.06);
  color: var(--text-primary);
  border-color: var(--border-hover);
}
.contact-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 18px;
}
.contact-qr {
  display: block;
  width: 220px;
  height: 220px;
  margin: 0 auto 16px;
  border-radius: 12px;
  background: #fff;
  padding: 8px;
  object-fit: contain;
}
.contact-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(12px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0)    scale(1); }
}