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

/* ── Language toggle ── */
.lang-toggle {
  padding: 5px 12px; border-radius: 8px;
  background: rgba(124,106,247,0.06);
  border: 1px solid rgba(124,106,247,0.2);
  color: var(--accent); font-size: 13px; font-weight: 600;
  cursor: pointer; transition: all 0.2s;
  letter-spacing: 0.02em;
}
.lang-toggle:hover { color: #fff; border-color: var(--accent); background: var(--accent); }
.lang-toggle--mobile { width: 100%; margin-bottom: 8px; padding: 10px; font-size: 14px; }

:root {
  --bg:        #ffffff;
  --bg2:       #f7f8fc;
  --bg3:       #f0f2f8;
  --bg4:       #ffffff;
  --border:       rgba(0,0,0,0.07);
  --border-hover: rgba(0,0,0,0.13);
  --text:       #0f0f1a;
  --text-muted: #6b7280;
  --text-dim:   #9ca3af;
  --accent:      #7c6af7;
  --accent2:     #6d56f5;
  --accent-glow: rgba(124,106,247,0.22);
  --blue:        #4f9eff;
  --blue-glow:   rgba(79,158,255,0.18);
  --green:  #10b981;
  --orange: #f59e0b;
  --pink:   #ec4899;
  --radius:    12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.07), 0 1px 4px rgba(0,0,0,0.04);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.09), 0 4px 12px rgba(0,0,0,0.05);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

section { padding: 96px 0; }

/* ── Typography ── */
.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-header { text-align: center; margin-bottom: 56px; }
.section-tag {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 20px;
  border: 1px solid rgba(124,106,247,0.25);
  background: rgba(124,106,247,0.07);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(26px, 3.5vw, 42px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 14px;
}
.section-desc { color: var(--text-muted); font-size: 16px; max-width: 520px; margin: 0 auto; }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius);
  font-size: 14px; font-weight: 600;
  cursor: pointer; border: none; text-decoration: none;
  transition: all 0.2s var(--ease);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #5b4fd4 100%);
  color: #fff;
  box-shadow: 0 2px 12px var(--accent-glow);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 24px rgba(124,106,247,0.35);
}
.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-hover);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); background: rgba(124,106,247,0.04); }
.btn-ghost { background: transparent; color: var(--text-muted); }
.btn-ghost:hover { color: var(--text); background: var(--bg3); }
.btn-lg { padding: 13px 28px; font-size: 15px; border-radius: 14px; }
.btn-xl { padding: 16px 36px; font-size: 16px; border-radius: 14px; }
.btn-block { width: 100%; }

/* ── Navbar ── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s var(--ease), background 0.3s var(--ease);
}
.navbar--scrolled { box-shadow: var(--shadow-md); background: rgba(255,255,255,0.96); }
.nav-inner {
  display: flex; align-items: center; gap: 32px;
  height: 64px;
}
.logo {
  display: flex; align-items: center; gap: 9px;
  text-decoration: none; flex-shrink: 0;
}
.logo-text { font-size: 18px; font-weight: 800; color: var(--text); letter-spacing: -0.02em; }
.logo-accent { color: var(--accent); }
.nav-links {
  display: flex; align-items: center; gap: 4px;
  list-style: none; margin: 0; padding: 0; flex: 1;
}
.nav-links a {
  display: block; padding: 6px 12px;
  color: var(--text-muted); font-size: 14px; font-weight: 500;
  text-decoration: none; border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}
.nav-links a:hover { color: var(--text); background: var(--bg3); }
.nav-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.nav-hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 6px;
}
.nav-hamburger span {
  display: block; width: 22px; height: 2px;
  background: var(--text-muted); border-radius: 2px;
  transition: all 0.25s var(--ease);
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Nav */
.nav-mobile {
  position: fixed; top: 64px; left: 0; right: 0; z-index: 99;
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px 24px;
  transform: translateY(-110%);
  transition: transform 0.3s var(--ease);
  box-shadow: var(--shadow-lg);
}
.nav-mobile.open { transform: translateY(0); }
.nav-mobile ul { list-style: none; margin-bottom: 20px; }
.nav-mobile ul li a {
  display: block; padding: 12px 0;
  color: var(--text-muted); font-size: 16px; font-weight: 500;
  text-decoration: none; border-bottom: 1px solid var(--border);
  transition: color 0.2s;
}
.nav-mobile ul li a:hover { color: var(--text); }
.nav-mobile-actions { display: flex; flex-direction: column; gap: 10px; }

/* ── Hero ── */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center;
  padding: 120px 0 80px; overflow: hidden;
  background: linear-gradient(160deg, #fafbff 0%, #f4f0ff 40%, #eef6ff 70%, #fafbff 100%);
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-orb {
  position: absolute; border-radius: 50%;
  filter: blur(70px); pointer-events: none;
}
.hero-orb--1 {
  width: 900px; height: 700px;
  top: -160px; left: 50%; transform: translateX(-40%);
  background: radial-gradient(ellipse, rgba(124,106,247,0.28) 0%, rgba(79,158,255,0.12) 45%, transparent 70%);
  animation: orb-drift 14s ease-in-out infinite;
}
.hero-orb--2 {
  width: 560px; height: 560px;
  bottom: -80px; right: -40px;
  background: radial-gradient(ellipse, rgba(79,158,255,0.22) 0%, rgba(56,189,248,0.1) 50%, transparent 70%);
  animation: orb-drift 18s ease-in-out infinite reverse;
}
.hero-orb--3 {
  width: 420px; height: 420px;
  top: 15%; left: -100px;
  background: radial-gradient(ellipse, rgba(244,114,182,0.18) 0%, rgba(167,139,250,0.12) 50%, transparent 70%);
  animation: orb-drift 22s ease-in-out infinite 4s;
}
.hero-orb--4 {
  width: 300px; height: 300px;
  bottom: 10%; left: 30%;
  background: radial-gradient(ellipse, rgba(52,211,153,0.14) 0%, rgba(79,158,255,0.08) 50%, transparent 70%);
  animation: orb-drift 16s ease-in-out infinite 7s reverse;
}
.hero-grid {
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(124,106,247,0.12) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 50%, black 30%, transparent 100%);
  animation: grid-shimmer 8s ease-in-out infinite;
}
/* Floating particles */
.hero-particles { position: absolute; inset: 0; }
.hero-particle {
  position: absolute; border-radius: 50%;
  opacity: 0;
  animation: particle-float linear infinite;
  box-shadow: 0 0 6px currentColor;
}
.hero-particle:nth-child(1)  { width:4px;height:4px; left:8%;  color:#7c6af7; background:#7c6af7; animation-duration:9s;  animation-delay:0s;   }
.hero-particle:nth-child(2)  { width:3px;height:3px; left:18%; color:#4f9eff; background:#4f9eff; animation-duration:12s; animation-delay:1.5s; }
.hero-particle:nth-child(3)  { width:5px;height:5px; left:30%; color:#f472b6; background:#f472b6; animation-duration:8s;  animation-delay:3s;   }
.hero-particle:nth-child(4)  { width:3px;height:3px; left:42%; color:#34d399; background:#34d399; animation-duration:14s; animation-delay:0.8s; }
.hero-particle:nth-child(5)  { width:4px;height:4px; left:55%; color:#7c6af7; background:#7c6af7; animation-duration:10s; animation-delay:2.2s; }
.hero-particle:nth-child(6)  { width:3px;height:3px; left:67%; color:#fb923c; background:#fb923c; animation-duration:11s; animation-delay:4s;   }
.hero-particle:nth-child(7)  { width:5px;height:5px; left:78%; color:#4f9eff; background:#4f9eff; animation-duration:7s;  animation-delay:1s;   }
.hero-particle:nth-child(8)  { width:3px;height:3px; left:88%; color:#f472b6; background:#f472b6; animation-duration:13s; animation-delay:5s;   }
.hero-particle:nth-child(9)  { width:4px;height:4px; left:22%; color:#34d399; background:#34d399; animation-duration:9s;  animation-delay:6s;   }
.hero-particle:nth-child(10) { width:3px;height:3px; left:48%; color:#a78bfa; background:#a78bfa; animation-duration:15s; animation-delay:2s;   }
.hero-particle:nth-child(11) { width:4px;height:4px; left:62%; color:#38bdf8; background:#38bdf8; animation-duration:11s; animation-delay:3.5s; }
.hero-particle:nth-child(12) { width:3px;height:3px; left:92%; color:#7c6af7; background:#7c6af7; animation-duration:8s;  animation-delay:7s;   }
/* Beam lines */
.hero-beams { position: absolute; inset: 0; overflow: hidden; }
.hero-beam {
  position: absolute; top: 0;
  animation: beam-fall linear infinite;
  opacity: 0; border-radius: 1px;
}
.hero-beam:nth-child(1) { left:10%; width:1px; height:60%; animation-duration:6s;  animation-delay:0s;   background:linear-gradient(180deg,transparent,rgba(124,106,247,0.5),rgba(124,106,247,0.2),transparent); }
.hero-beam:nth-child(2) { left:25%; width:2px; height:75%; animation-duration:8s;  animation-delay:2s;   background:linear-gradient(180deg,transparent,rgba(79,158,255,0.45),rgba(56,189,248,0.2),transparent); }
.hero-beam:nth-child(3) { left:40%; width:1px; height:50%; animation-duration:7s;  animation-delay:4s;   background:linear-gradient(180deg,transparent,rgba(244,114,182,0.4),rgba(167,139,250,0.2),transparent); }
.hero-beam:nth-child(4) { left:58%; width:2px; height:65%; animation-duration:9s;  animation-delay:1s;   background:linear-gradient(180deg,transparent,rgba(52,211,153,0.4),rgba(79,158,255,0.2),transparent); }
.hero-beam:nth-child(5) { left:72%; width:1px; height:55%; animation-duration:5s;  animation-delay:3s;   background:linear-gradient(180deg,transparent,rgba(124,106,247,0.45),rgba(244,114,182,0.2),transparent); }
.hero-beam:nth-child(6) { left:85%; width:2px; height:70%; animation-duration:10s; animation-delay:5.5s; background:linear-gradient(180deg,transparent,rgba(79,158,255,0.4),rgba(52,211,153,0.2),transparent); }
/* Aurora sweep */
.hero-aurora {
  position: absolute; inset: 0;
  background: linear-gradient(105deg,
    transparent 20%,
    rgba(124,106,247,0.06) 35%,
    rgba(79,158,255,0.05) 50%,
    rgba(244,114,182,0.04) 65%,
    transparent 80%
  );
  background-size: 200% 100%;
  animation: aurora-sweep 12s ease-in-out infinite;
}
.hero-inner { position: relative; z-index: 1; text-align: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 16px; border-radius: 20px;
  border: 1px solid rgba(124,106,247,0.22);
  background: rgba(124,106,247,0.06);
  color: var(--accent); font-size: 13px; font-weight: 500;
  margin-bottom: 28px;
}
.badge-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--green);
  animation: badge-pulse 2s ease-in-out infinite;
}
.hero-title {
  font-size: clamp(40px, 6vw, 76px);
  font-weight: 900; letter-spacing: -0.03em; line-height: 1.08;
  margin-bottom: 22px;
}
.hero-desc {
  color: var(--text-muted); font-size: clamp(15px, 1.8vw, 18px);
  max-width: 560px; margin: 0 auto 36px; line-height: 1.7;
}
.hero-actions { display: flex; align-items: center; justify-content: center; gap: 14px; flex-wrap: wrap; margin-bottom: 56px; }
.hero-stats {
  display: inline-flex; align-items: center; gap: 0;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 28px; flex-wrap: wrap; justify-content: center;
  box-shadow: var(--shadow-md);
}
.stat-item { text-align: center; padding: 0 20px; }
.stat-num { display: block; font-size: 20px; font-weight: 800; color: var(--text); letter-spacing: -0.02em; }
.stat-label { display: block; font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.stat-divider { width: 1px; height: 36px; background: var(--border); flex-shrink: 0; }

/* ── Use Cases ── */
.use-cases { background: var(--bg2); }
.use-cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.use-case-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: transform 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s;
  position: relative; overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.use-case-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
}
.use-case-card--drama::before { background: linear-gradient(90deg, var(--accent), #a78bfa); }
.use-case-card--film::before  { background: linear-gradient(90deg, var(--blue), #38bdf8); }
.use-case-card--promo::before { background: linear-gradient(90deg, var(--pink), var(--orange)); }
.use-case-card:hover { transform: translateY(-5px); border-color: var(--border-hover); box-shadow: var(--shadow-lg); }
.use-case-icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: var(--bg3);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.use-case-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.use-case-card p { color: var(--text-muted); font-size: 14px; line-height: 1.65; margin-bottom: 18px; }
.use-case-tags { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; }
.use-case-tags li {
  padding: 3px 10px; border-radius: 20px;
  background: var(--bg3); border: 1px solid var(--border);
  font-size: 12px; color: var(--text-muted);
}

/* ── Features ── */
.features { background: var(--bg); }
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  position: relative;
  transition: transform 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s;
  box-shadow: var(--shadow-sm);
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(124,106,247,0.25);
  box-shadow: var(--shadow-lg);
}
.feature-card--wide { grid-column: span 2; }
.feature-card--highlight {
  background: linear-gradient(135deg, rgba(124,106,247,0.05) 0%, rgba(79,158,255,0.03) 100%);
  border-color: rgba(124,106,247,0.2);
}
.feature-card--highlight:hover {
  border-color: rgba(124,106,247,0.4);
  box-shadow: 0 8px 40px rgba(124,106,247,0.12);
}
.feature-badge {
  position: absolute; top: 20px; right: 20px;
  padding: 3px 10px; border-radius: 20px;
  background: linear-gradient(135deg, var(--accent), var(--blue));
  color: #fff; font-size: 11px; font-weight: 600;
}
.feature-icon-wrap {
  width: 52px; height: 52px; border-radius: 14px;
  background: var(--bg3);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.feature-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.feature-card p { color: var(--text-muted); font-size: 14px; line-height: 1.65; }
.feature-highlight-tags {
  display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px;
}
.feature-highlight-tags span {
  padding: 4px 12px; border-radius: 20px;
  background: rgba(124,106,247,0.08);
  border: 1px solid rgba(124,106,247,0.18);
  color: var(--accent); font-size: 12px; font-weight: 500;
}

/* ── Demo ── */
.demo { background: var(--bg2); }
.demo-tabs {
  display: flex; align-items: center; gap: 6px;
  justify-content: center; margin-bottom: 32px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 5px;
  width: fit-content; margin-left: auto; margin-right: auto;
  box-shadow: var(--shadow-sm);
}
.demo-tab {
  padding: 8px 22px; border-radius: 10px;
  background: transparent; border: none;
  color: var(--text-muted); font-size: 14px; font-weight: 500;
  cursor: pointer; transition: all 0.2s var(--ease);
}
.demo-tab:hover { color: var(--text); background: var(--bg3); }
.demo-tab--active {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 10px var(--accent-glow);
}
.demo-player-wrap { max-width: 860px; margin: 0 auto; }
.video-player {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border);
  background: #0a0a0f;
  aspect-ratio: 16/9;
  box-shadow: var(--shadow-lg);
}
.video-player video {
  width: 100%; height: 100%;
  display: block; object-fit: cover;
}
.video-overlay {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 20px;
}
.video-overlay-bg {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(10,10,15,0.82) 0%, rgba(13,13,24,0.65) 100%);
}
.play-btn {
  position: relative; z-index: 1;
  width: 80px; height: 80px; border-radius: 50%;
  background: rgba(124,106,247,0.9);
  border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 50px rgba(124,106,247,0.5);
  transition: transform 0.2s var(--ease-spring), box-shadow 0.2s;
}
.play-btn:hover { transform: scale(1.1); box-shadow: 0 0 70px rgba(124,106,247,0.65); }
.play-btn svg { margin-left: 4px; }
.video-meta {
  position: relative; z-index: 1;
  display: flex; align-items: center; gap: 12px;
}
.video-label {
  font-size: 14px; font-weight: 600; color: #fff;
}
.video-quality {
  padding: 2px 8px; border-radius: 6px;
  background: rgba(124,106,247,0.25);
  border: 1px solid rgba(124,106,247,0.4);
  color: #c4b5fd; font-size: 11px; font-weight: 600;
}
.demo-prompt {
  margin-top: 20px;
  padding: 14px 20px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex; align-items: flex-start; gap: 10px;
  box-shadow: var(--shadow-sm);
}
.prompt-label {
  color: var(--accent); font-size: 12px; font-weight: 600;
  white-space: nowrap; padding-top: 1px;
}
.prompt-text {
  color: var(--text-muted); font-size: 13px;
  font-family: 'Courier New', monospace; line-height: 1.5;
}

/* ── CTA Section ── */
.cta-section {
  position: relative; overflow: hidden;
  background: var(--bg2);
  padding: 100px 0;
}
.cta-bg { position: absolute; inset: 0; pointer-events: none; }
.cta-orb {
  position: absolute; width: 600px; height: 400px;
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  background: radial-gradient(ellipse, rgba(124,106,247,0.1) 0%, transparent 70%);
  filter: blur(60px);
}
.cta-inner { position: relative; z-index: 1; text-align: center; }
.cta-title {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 900; letter-spacing: -0.03em;
  margin: 16px 0 18px;
}
.cta-desc { color: var(--text-muted); font-size: 16px; max-width: 480px; margin: 0 auto 36px; }
.cta-actions { display: flex; align-items: center; justify-content: center; gap: 14px; flex-wrap: wrap; margin-bottom: 20px; }
.cta-note { color: var(--text-dim); font-size: 13px; }

/* ── Footer ── */
.footer { background: var(--bg3); border-top: 1px solid var(--border); padding-top: 64px; }
.footer-inner {
  display: grid; grid-template-columns: 1fr auto;
  gap: 48px; padding-bottom: 48px;
}
.footer-brand { max-width: 280px; }
.footer-brand .logo { margin-bottom: 14px; }
.footer-brand p { color: var(--text-muted); font-size: 14px; line-height: 1.65; }
.footer-links { display: flex; gap: 48px; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col h4 { font-size: 13px; font-weight: 700; color: var(--text); margin-bottom: 4px; text-transform: uppercase; letter-spacing: 0.05em; }
.footer-col a { color: var(--text-muted); font-size: 14px; text-decoration: none; transition: color 0.2s; }
.footer-col a:hover { color: var(--text); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
}
.footer-bottom p { color: var(--text-dim); font-size: 13px; text-align: center; }

/* ── Float Widget ── */
.cs-fab {
  position: fixed; bottom: 32px; right: 32px; z-index: 200;
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  width: 60px; height: 60px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent) 0%, #5b4fd4 100%);
  color: #fff; cursor: pointer;
  box-shadow: 0 4px 20px rgba(124,106,247,0.4);
  transition: transform 0.2s var(--ease-spring), box-shadow 0.2s;
  justify-content: center;
}
.cs-fab:hover { transform: scale(1.08); box-shadow: 0 6px 28px rgba(124,106,247,0.55); }
.cs-fab--open { transform: scale(0.92); }
.cs-fab-icon { flex-shrink: 0; }
.cs-fab-label { font-size: 9px; font-weight: 700; letter-spacing: 0.04em; line-height: 1; }
.cs-fab-pulse {
  position: absolute; inset: -5px; border-radius: 50%;
  border: 2px solid rgba(124,106,247,0.4);
  animation: pulse-ring 2.5s ease-out infinite;
  pointer-events: none;
}
.cs-overlay {
  position: fixed; inset: 0; z-index: 198;
  background: rgba(0,0,0,0.25);
  opacity: 0; pointer-events: none;
  transition: opacity 0.25s var(--ease);
}
.cs-overlay.active { opacity: 1; pointer-events: all; }
.cs-panel {
  position: fixed; bottom: 104px; right: 32px; z-index: 199;
  width: 320px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(0,0,0,0.04);
  overflow: hidden;
  transform: translateY(20px) scale(0.95);
  opacity: 0; pointer-events: none;
  transition: transform 0.3s var(--ease-spring), opacity 0.25s var(--ease);
}
.cs-panel.active { transform: translateY(0) scale(1); opacity: 1; pointer-events: all; }
.cs-panel-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 20px 14px;
  border-bottom: 1px solid var(--border);
}
.cs-panel-header h4 { font-size: 15px; font-weight: 700; }
.cs-panel-header p { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.cs-close {
  background: none; border: none; color: var(--text-muted);
  font-size: 16px; cursor: pointer; padding: 4px;
  border-radius: 6px; transition: color 0.2s, background 0.2s;
}
.cs-close:hover { color: var(--text); background: var(--bg3); }
.cs-channels { padding: 8px; }
.cs-channel {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px; border-radius: var(--radius);
  text-decoration: none; color: var(--text);
  cursor: pointer; transition: background 0.2s;
  margin-bottom: 2px;
}
.cs-channel:hover { background: var(--bg3); }
.cs-channel-icon {
  width: 40px; height: 40px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.cs-channel--telegram .cs-channel-icon { background: rgba(34,158,217,0.12); color: #229ED9; }
.cs-channel--whatsapp .cs-channel-icon { background: rgba(37,211,102,0.12); color: #25D366; }
.cs-channel--wechat .cs-channel-icon   { background: rgba(7,193,96,0.12);   color: #07C160; }
.cs-channel--line .cs-channel-icon     { background: rgba(0,185,0,0.12);     color: #00B900; }
.cs-channel-info { flex: 1; }
.cs-channel-name { display: block; font-size: 14px; font-weight: 600; }
.cs-channel-handle { display: block; font-size: 12px; color: var(--text-muted); margin-top: 1px; }
.cs-channel-arrow { color: var(--text-dim); font-size: 14px; }
.cs-channel-copy {
  font-size: 12px; font-weight: 600; color: var(--accent);
  padding: 3px 8px; border-radius: 6px;
  background: rgba(124,106,247,0.08);
  border: 1px solid rgba(124,106,247,0.18);
}

/* ── Toast ── */
.toast {
  position: fixed; bottom: 110px; left: 50%; transform: translateX(-50%) translateY(10px);
  background: var(--text); border: 1px solid rgba(0,0,0,0.1);
  color: #fff; font-size: 13px; font-weight: 500;
  padding: 10px 20px; border-radius: 10px;
  box-shadow: var(--shadow-lg);
  opacity: 0; pointer-events: none;
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
  white-space: nowrap; z-index: 300;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ── Scroll Reveal ── */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.65s var(--ease), transform 0.65s var(--ease); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-child { opacity: 0; transform: translateY(20px); transition: opacity 0.55s var(--ease), transform 0.55s var(--ease); }
.reveal-child.visible { opacity: 1; transform: translateY(0); }

/* ── Animations ── */
@keyframes orb-drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25%       { transform: translate(30px, -25px) scale(1.06); }
  50%       { transform: translate(-15px, 20px) scale(0.96); }
  75%       { transform: translate(20px, 10px) scale(1.03); }
}
@keyframes pulse-ring {
  0%   { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.65); opacity: 0; }
}
@keyframes badge-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.35; }
}
@keyframes particle-float {
  0%   { transform: translateY(100vh) translateX(0) scale(0); opacity: 0; }
  8%   { opacity: 0.9; }
  50%  { transform: translateY(40vh) translateX(20px) scale(1); opacity: 0.7; }
  92%  { opacity: 0.5; }
  100% { transform: translateY(-80px) translateX(-10px) scale(0.5); opacity: 0; }
}
@keyframes beam-fall {
  0%   { transform: translateY(-100%); opacity: 0; }
  12%  { opacity: 1; }
  88%  { opacity: 0.7; }
  100% { transform: translateY(110vh); opacity: 0; }
}
@keyframes grid-shimmer {
  0%, 100% { opacity: 0.6; }
  50%       { opacity: 1; }
}
@keyframes aurora-sweep {
  0%        { background-position: 0% 50%; opacity: 0.6; }
  50%       { background-position: 100% 50%; opacity: 1; }
  100%      { background-position: 0% 50%; opacity: 0.6; }
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-card--wide { grid-column: span 2; }
}
@media (max-width: 768px) {
  section { padding: 64px 0; }
  .nav-links, .nav-actions { display: none; }
  .nav-hamburger { display: flex; }
  .use-cases-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-card--wide { grid-column: span 1; }
  .hero-stats { gap: 0; padding: 14px 16px; }
  .stat-item { padding: 0 12px; }
  .stat-num { font-size: 16px; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-links { flex-wrap: wrap; gap: 32px; }
  .cs-panel { right: 16px; left: 16px; width: auto; bottom: 96px; }
  .cs-fab { bottom: 24px; right: 20px; }
}
@media (max-width: 480px) {
  .hero-title { font-size: 36px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { text-align: center; }
  .cta-actions { flex-direction: column; align-items: stretch; }
  .cta-actions .btn { text-align: center; }
  .stat-divider { display: none; }
  .hero-stats { gap: 8px; }
  .stat-item { padding: 6px 12px; }
}