:root {
  --primary: #667eea;
  --secondary: #764ba2;
  --accent: #f093fb;
  --accent-2: #4facfe;
  --accent-3: #00f2fe;
  --accent-4: #ff7a59;
  --bg-dark: #050508;
  --bg-darker: #020204;
  --bg-card: rgba(255, 255, 255, 0.035);
  --bg-hover: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.07);
  --border-hover: rgba(255, 255, 255, 0.18);
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.68);
  --text-muted: rgba(255, 255, 255, 0.44);
  --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-text: linear-gradient(135deg, #667eea 0%, #f093fb 100%);
  --gradient-cool: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-glow: 0 0 60px rgba(102, 126, 234, 0.25);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
}

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

html { scroll-behavior: smooth; }

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

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 0%, rgba(102, 126, 234, 0.12), transparent 60%),
    radial-gradient(ellipse 60% 50% at 100% 20%, rgba(240, 147, 251, 0.08), transparent 60%),
    radial-gradient(ellipse 70% 60% at 50% 100%, rgba(79, 172, 254, 0.08), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

.container { max-width: 1240px; margin: 0 auto; padding: 0 32px; position: relative; z-index: 1; }

/* === NAVBAR === */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 18px 0; transition: var(--transition);
  background: rgba(5, 5, 8, 0.55);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid transparent;
}
.navbar.scrolled {
  background: rgba(5, 5, 8, 0.85);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}
.nav-container {
  max-width: 1240px; margin: 0 auto; padding: 0 32px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.35rem; }
.logo-svg { filter: drop-shadow(0 0 12px rgba(102, 126, 234, 0.5)); }
.logo-text { background: var(--gradient-text); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

.nav-menu { display: flex; align-items: center; gap: 36px; }
.nav-link {
  color: var(--text-secondary); text-decoration: none; font-weight: 500;
  font-size: 0.92rem; transition: var(--transition); position: relative;
}
.nav-link:hover { color: var(--text-primary); }
.nav-link::after {
  content: ''; position: absolute; bottom: -6px; left: 0; width: 0;
  height: 2px; background: var(--gradient); transition: var(--transition);
  border-radius: 2px;
}
.nav-link:hover::after { width: 100%; }
.nav-shop {
  color: #22c55e !important;
  font-weight: 700;
}
.nav-shop:hover {
  color: #16a34a !important;
}
.nav-shop::after { display: none; }

.nav-actions { display: flex; align-items: center; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 24px; border-radius: var(--radius-sm); font-weight: 600; font-size: 0.92rem;
  text-decoration: none; transition: var(--transition); cursor: pointer;
  border: none; white-space: nowrap;
}
.btn-primary {
  background: var(--gradient); color: white;
  box-shadow: 0 4px 24px rgba(102, 126, 234, 0.4);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(102, 126, 234, 0.55); }
.btn-outline { background: transparent; color: var(--text-primary); border: 1px solid var(--border); }
.btn-outline:hover { border-color: var(--primary); background: rgba(102, 126, 234, 0.08); }
.btn-ghost { background: transparent; color: var(--text-primary); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--border-hover); background: rgba(255, 255, 255, 0.04); }
.btn-lg { padding: 15px 32px; font-size: 0.95rem; }
.btn-block { width: 100%; }
.nav-cta { padding: 9px 20px; font-size: 0.88rem; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: transparent; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text-primary); border-radius: 2px; }

/* === HERO === */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  padding: 120px 0 60px; overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; overflow: hidden; }
.grid-overlay {
  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 40%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 70%);
}
.gradient-orb { position: absolute; border-radius: 50%; filter: blur(140px); opacity: 0.35; }
.orb-1 { width: 600px; height: 600px; background: #667eea; top: -200px; left: -150px; animation: orbFloat 12s ease-in-out infinite; }
.orb-2 { width: 500px; height: 500px; background: #f093fb; bottom: -150px; right: -100px; animation: orbFloat 14s ease-in-out infinite reverse; }
@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(40px, -40px); }
}

.hero-container {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 60px;
  align-items: center;
}
.hero-left { max-width: 620px; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 16px; background: rgba(102, 126, 234, 0.1);
  border: 1px solid rgba(102, 126, 234, 0.25);
  border-radius: 100px; font-size: 0.85rem; color: var(--text-secondary);
  margin-bottom: 28px;
}
.hero-badge-new {
  padding: 8px 18px;
  background: linear-gradient(135deg, rgba(102,126,234,0.15) 0%, rgba(240,147,251,0.1) 100%);
  border: 1px solid rgba(102, 126, 234, 0.3);
  font-weight: 500;
}
.badge-brand {
  font-weight: 800;
  background: linear-gradient(135deg, #667eea 0%, #f093fb 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}
.badge-sep {
  color: var(--text-muted);
  font-weight: 300;
}
.badge-service {
  font-weight: 800;
  background: linear-gradient(135deg, #f5576c 0%, #f093fb 50%, #4facfe 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}
.badge-dot {
  width: 7px; height: 7px; background: #00ff88; border-radius: 50%;
  box-shadow: 0 0 12px #00ff88; animation: pulse 2s infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

.hero-title {
  font-size: clamp(2.4rem, 4.5vw, 3.8rem); font-weight: 900;
  line-height: 1.15; margin-bottom: 20px; letter-spacing: -0.03em;
}
.hero-title-line1 {
  display: inline-flex; align-items: baseline; gap: 0.3em;
  font-size: clamp(2.4rem, 4.5vw, 3.8rem);
  font-weight: 900;
  flex-wrap: wrap;
}
.hero-title-brand {
  font-size: clamp(2.4rem, 4.5vw, 3.8rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 2px 16px rgba(102, 126, 234, 0.25));
}
.hero-title-desc {
  font-size: clamp(2.4rem, 4.5vw, 3.8rem);
  font-weight: 900;
  color: var(--text);
  letter-spacing: -0.03em;
}
.hero-title-line3 {
  display: inline-flex; align-items: baseline; gap: 0.2em;
  font-size: clamp(2.4rem, 4.5vw, 3.8rem);
  font-weight: 900;
}
.gradient-text {
  font-size: clamp(2.4rem, 4.5vw, 3.8rem);
  font-weight: 900;
  background: var(--gradient-text); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.title-accent {
  font-size: clamp(2.4rem, 4.5vw, 3.8rem);
  font-weight: 900;
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

.hero-subtitle {
  font-size: 1.05rem; color: var(--text-secondary);
  line-height: 1.8; margin-bottom: 36px; max-width: 540px;
}
.hero-actions { display: flex; gap: 14px; margin-bottom: 56px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 8px; flex-wrap: wrap; }
.stat-item { text-align: left; padding-right: 28px; border-right: 1px solid var(--border); }
.stat-item:last-child { border-right: none; }
.stat-value {
  font-size: 2.2rem; font-weight: 800;
  background: var(--gradient-text); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  line-height: 1;
}
.stat-label { font-size: 0.85rem; color: var(--text-muted); margin-top: 6px; }

/* GLOBE */
.hero-right { display: flex; align-items: center; justify-content: center; }
.globe-container {
  position: relative; width: 480px; height: 480px;
  display: flex; align-items: center; justify-content: center;
  overflow: visible;
}
#globe { width: 100%; height: 100%; display: block; }

.globe-halo {
  position: absolute;
  width: 100%; height: 100%;
  background: radial-gradient(circle at center, rgba(102, 126, 234, 0.35) 0%, rgba(240, 147, 251, 0.2) 40%, transparent 70%);
  filter: blur(30px);
  z-index: -1;
  animation: haloPulse 4s ease-in-out infinite;
}
@keyframes haloPulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.05); }
}

.globe-ring {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  pointer-events: none;
}
.ring-1 { width: 360px; height: 360px; animation: ringSpin 20s linear infinite; border: 1px dashed rgba(102, 126, 234, 0.35); }
.ring-2 { width: 410px; height: 410px; animation: ringSpin 30s linear infinite reverse; border: 1px solid rgba(240, 147, 251, 0.18); }
.ring-3 { width: 450px; height: 450px; animation: ringSpin 40s linear infinite; border: 1px dashed rgba(79, 172, 254, 0.15); }
@keyframes ringSpin {
  0% { transform: translate(-50%, -50%) rotate(0deg); }
  100% { transform: translate(-50%, -50%) rotate(360deg); }
}

.globe-legend {
  position: absolute;
  left: 0;
  bottom: 20px;
  display: flex; gap: 16px;
  font-size: 0.75rem;
  color: var(--text-muted);
}
.legend-item { display: flex; align-items: center; gap: 6px; }
.legend-dot { width: 8px; height: 8px; border-radius: 50%; }
.legend-dot.node { background: #4facfe; box-shadow: 0 0 8px #4facfe; }
.legend-dot.active { background: #00ffa3; box-shadow: 0 0 8px #00ffa3; }
.legend-dot.route { background: #f093fb; box-shadow: 0 0 8px #f093fb; }

/* Node labels (CSS2D) */
.node-label {
  position: relative;
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  background: rgba(10, 20, 40, 0.8);
  border: 1px solid rgba(79, 172, 254, 0.4);
  border-radius: 16px;
  font-size: 11px;
  font-weight: 500;
  color: #cfe2ff;
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Source Han Sans CN', -apple-system, sans-serif;
  letter-spacing: 0.05em;
  white-space: nowrap;
  pointer-events: none;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  transform: translate(-50%, -50%);
  transition: opacity 0.3s ease;
}
.node-label::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #4facfe;
  box-shadow: 0 0 8px #4facfe;
  flex-shrink: 0;
}
.node-label.hidden-label {
  opacity: 0;
  pointer-events: none;
}

.hero-scroll {
  position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.scroll-mouse {
  width: 22px; height: 36px; border: 2px solid var(--border);
  border-radius: 12px; display: flex; justify-content: center; padding-top: 6px;
}
.scroll-wheel {
  width: 3px; height: 6px; background: var(--text-muted); border-radius: 2px;
  animation: wheelScroll 1.5s infinite;
}
@keyframes wheelScroll { 0% { transform: translateY(0); opacity: 1; } 100% { transform: translateY(10px); opacity: 0; } }
.scroll-text { font-size: 0.7rem; letter-spacing: 0.2em; color: var(--text-muted); }

/* === SECTION HEADERS === */
.section-header { text-align: center; margin-bottom: 64px; }
.section-tag {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 6px 16px; background: rgba(102, 126, 234, 0.08);
  border: 1px solid rgba(102, 126, 234, 0.2);
  border-radius: 100px; font-size: 0.85rem; color: var(--accent-2);
  font-weight: 600; margin-bottom: 20px;
}
.tag-line { width: 16px; height: 1px; background: var(--accent-2); }
.section-title { font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 800; margin-bottom: 14px; letter-spacing: -0.02em; }
.section-subtitle { font-size: 1rem; color: var(--text-secondary); max-width: 560px; margin: 0 auto; }

/* === FEATURES === */
.features { padding: 120px 0; position: relative; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.feature-card {
  position: relative; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 34px; transition: var(--transition); overflow: hidden;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.feature-glow {
  position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
  background: radial-gradient(circle, rgba(102, 126, 234, 0.12) 0%, transparent 50%);
  opacity: 0; transition: var(--transition); pointer-events: none;
}
.feature-card:hover { border-color: var(--border-hover); transform: translateY(-4px); box-shadow: 0 20px 60px rgba(102, 126, 234, 0.15); }
.feature-card:hover .feature-glow { opacity: 1; }
.feature-icon-wrap {
  width: 56px; height: 56px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 22px; color: var(--accent-2);
  transition: var(--transition);
}
.feature-card:hover .feature-icon-wrap { transform: scale(1.08); }
.icon-1 { background: rgba(240, 147, 251, 0.1); }
.icon-2 { background: rgba(79, 172, 254, 0.1); }
.icon-3 { background: rgba(0, 242, 254, 0.1); }
.icon-4 { background: rgba(255, 99, 132, 0.1); }
.icon-5 { background: rgba(102, 255, 178, 0.1); }
.icon-6 { background: rgba(255, 205, 86, 0.1); }
.feature-card h3 { font-size: 1.18rem; font-weight: 700; margin-bottom: 10px; }
.feature-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 18px; }
.feature-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.feature-tags span {
  padding: 4px 11px; background: rgba(255, 255, 255, 0.05);
  border-radius: 100px; font-size: 0.78rem; color: var(--text-muted);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

/* === SCENARIOS === */
.scenarios { padding: 120px 0; background: linear-gradient(180deg, transparent, rgba(102, 126, 234, 0.03)); }
.scenarios-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.scenario-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden; transition: var(--transition);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.scenario-card:hover { border-color: var(--border-hover); transform: translateY(-4px); box-shadow: 0 20px 60px rgba(102, 126, 234, 0.15); }
.scenario-card.featured { border-color: rgba(240, 147, 251, 0.35); }
.scenario-visual {
  padding: 40px; display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.visual-1 { background: linear-gradient(135deg, rgba(102, 126, 234, 0.12), rgba(118, 75, 162, 0.08)); }
.visual-2 { background: linear-gradient(135deg, rgba(240, 147, 251, 0.12), rgba(245, 87, 108, 0.08)); }
.visual-ring {
  position: absolute; width: 120px; height: 120px;
  border: 1px solid rgba(255, 255, 255, 0.1); border-radius: 50%;
  animation: ringSpin 10s linear infinite;
}
.scenario-visual svg { position: relative; z-index: 1; color: var(--accent-2); filter: drop-shadow(0 0 12px rgba(79, 172, 254, 0.4)); }
.scenario-body { padding: 30px; }
.scenario-label {
  font-size: 0.8rem; color: var(--accent-2); font-weight: 600;
  margin-bottom: 6px; letter-spacing: 0.05em;
}
.scenario-body h3 { font-size: 1.35rem; font-weight: 700; margin-bottom: 10px; }
.scenario-body p { color: var(--text-secondary); margin-bottom: 20px; line-height: 1.7; }
.platform-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.platform-tags span {
  padding: 6px 13px; background: rgba(102, 126, 234, 0.08);
  border: 1px solid rgba(102, 126, 234, 0.15); border-radius: 10px;
  font-size: 0.82rem; color: var(--accent-2);
  transition: var(--transition);
}
.platform-tags span:hover { background: rgba(102, 126, 234, 0.15); }

/* === NODES === */
.nodes-section { padding: 120px 0; position: relative; }
.nodes-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.node-card {
  display: flex; align-items: center; gap: 16px;
  padding: 22px; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-md); transition: var(--transition);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.node-card:hover { border-color: var(--border-hover); transform: translateY(-2px); background: var(--bg-hover); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3); }
.node-flag { font-size: 1.8rem; }
.node-info { flex: 1; min-width: 0; }
.node-info h4 { font-size: 1rem; font-weight: 700; margin-bottom: 3px; }
.node-info p { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 4px; }
.node-use {
  display: block; font-size: 0.78rem; color: var(--text-muted);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.node-status {
  display: flex; align-items: center; gap: 5px;
  font-size: 0.78rem; color: #00ffa3; font-weight: 500;
  white-space: nowrap;
}
.node-status .dot {
  width: 6px; height: 6px; background: #00ffa3; border-radius: 50%;
  box-shadow: 0 0 8px #00ffa3; animation: pulse 2s infinite;
}

/* === SERVICE === */
.service { padding: 120px 0; background: linear-gradient(180deg, rgba(102, 126, 234, 0.03), transparent); }
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.service-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 34px 26px; text-align: center; transition: var(--transition);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.service-card:hover { border-color: var(--border-hover); transform: translateY(-4px); box-shadow: 0 20px 50px rgba(102, 126, 234, 0.15); }
.service-icon {
  width: 60px; height: 60px; margin: 0 auto 18px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(102, 126, 234, 0.1); border-radius: 16px; color: var(--accent-2);
  transition: var(--transition);
}
.service-card:hover .service-icon { transform: scale(1.08); box-shadow: 0 0 20px rgba(102, 126, 234, 0.3); }
.service-value {
  font-size: 1.9rem; font-weight: 800;
  background: var(--gradient-text); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  margin-bottom: 10px;
}
.service-value span { font-size: 1rem; }
.service-card h3 { font-size: 1.08rem; font-weight: 700; margin-bottom: 6px; }
.service-card p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; }

/* === PRICING === */
.pricing { padding: 120px 0; }
.pricing-subtitle {
  text-align: center; font-size: 1.35rem; font-weight: 700;
  margin: 56px 0 32px; position: relative;
}
.pricing-subtitle::after {
  content: ''; display: block; width: 44px; height: 3px;
  background: var(--gradient); margin: 12px auto 0; border-radius: 2px;
}
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 22px; margin-bottom: 40px; }
.pricing-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 34px; position: relative;
  transition: var(--transition); display: flex; flex-direction: column;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.pricing-card:hover { border-color: var(--border-hover); transform: translateY(-4px); box-shadow: 0 20px 60px rgba(102, 126, 234, 0.2); }
.pricing-card.featured {
  border-color: rgba(102, 126, 234, 0.5);
  background: linear-gradient(180deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.04));
  transform: scale(1.02);
}
.pricing-card.featured:hover { transform: scale(1.02) translateY(-4px); }

.pricing-card.recommend-card {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.15), rgba(240, 147, 251, 0.1));
  border: 2px dashed rgba(102, 126, 234, 0.5);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  justify-content: center;
  gap: 0;
}
.pricing-card.recommend-card:hover {
  border-color: var(--accent-2);
  box-shadow: 0 20px 60px rgba(102, 126, 234, 0.3);
}
.recommend-icon-big {
  font-size: 3rem;
  margin-bottom: 16px;
  animation: bounce 2s infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.pricing-card.recommend-card h3 {
  font-size: 1.3rem;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}
.pricing-card.recommend-card .card-sub {
  text-align: center;
  margin-bottom: 20px;
}
.pricing-card.recommend-card .card-list {
  text-align: left;
  margin: 0 auto 24px;
}

.card-top-badge {
  position: absolute; top: -12px; left: 20px;
  background: rgba(30, 30, 45, 0.9); border: 1px solid var(--border);
  padding: 5px 14px; border-radius: 100px;
  font-size: 0.75rem; font-weight: 600; color: var(--text-secondary);
  backdrop-filter: blur(8px);
}
.card-top-badge.featured { background: var(--gradient); color: white; border-color: transparent; }

.card-image {
  width: 100%; height: 200px; border-radius: var(--radius-md);
  overflow: hidden; margin-bottom: 20px;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.08), rgba(118, 75, 162, 0.05));
  position: relative; cursor: zoom-in;
}
.card-image::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.08));
  pointer-events: none;
}
.card-image img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.4s ease;
}
.pricing-card:hover .card-image img { transform: scale(1.05); }

.pricing-card h3 { font-size: 1.18rem; font-weight: 700; margin-bottom: 6px; }
.card-sub { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 18px; }
.card-price { display: flex; align-items: baseline; gap: 3px; margin-bottom: 22px; }
.card-price .currency { font-size: 1rem; color: var(--text-secondary); }
.card-price .amount {
  font-size: 2.2rem; font-weight: 800;
  background: var(--gradient-text); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.card-price .unit { font-size: 0.85rem; color: var(--text-muted); }
.card-list { list-style: none; margin-bottom: 22px; flex-grow: 1; }
.card-list li {
  padding: 7px 0; font-size: 0.85rem; color: var(--text-secondary);
  display: flex; align-items: flex-start; gap: 8px;
}
.card-list li::before {
  content: '✓'; color: var(--accent-2); font-weight: bold; flex-shrink: 0; font-size: 0.8rem;
}
.card-gift {
  padding: 10px 14px; background: rgba(240, 147, 251, 0.08);
  border-radius: 12px; font-size: 0.82rem; color: var(--accent);
  margin-bottom: 18px;
  border: 1px solid rgba(240, 147, 251, 0.15);
}

.value-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 28px; }
.value-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 26px; transition: var(--transition);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.value-card:hover { border-color: var(--border-hover); transform: translateY(-3px); }
.value-icon { font-size: 1.9rem; margin-bottom: 14px; }
.value-card h4 { font-size: 1.02rem; font-weight: 700; margin-bottom: 8px; }
.value-card p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; }

.value-banner {
  padding: 40px;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.14), rgba(240, 147, 251, 0.09));
  border: 1px solid rgba(102, 126, 234, 0.28);
  border-radius: var(--radius-lg); text-align: center;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.value-banner h4 { font-size: 1.4rem; font-weight: 800; margin-bottom: 10px; }
.value-banner p { color: var(--text-secondary); margin-bottom: 22px; }

/* Image Lightbox */
.image-modal {
  display: none; position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.88);
  z-index: 9999; align-items: center; justify-content: center;
  padding: 40px;
}
.image-modal.active { display: flex; animation: fadeIn 0.2s ease; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.image-modal-content {
  width: 75vw; height: 85vh; max-width: 1200px; max-height: 800px;
  border-radius: 16px; overflow: hidden;
  box-shadow: 0 40px 120px rgba(0, 0, 0, 0.6);
  animation: zoomIn 0.3s ease;
  background: #0a0a0f;
  display: flex; align-items: center; justify-content: center;
}
@keyframes zoomIn {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.image-modal-content img {
  display: block; width: 100%; height: 100%;
  object-fit: contain; object-position: center;
}
.image-modal-close {
  position: absolute; top: 24px; right: 24px;
  width: 48px; height: 48px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white; font-size: 24px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}
.image-modal-close:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: rotate(90deg);
}
.image-modal-hint {
  position: absolute; bottom: 30px; left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px; text-align: center;
}

/* === DEPLOY === */
.deploy-section { padding: 120px 0; background: linear-gradient(180deg, transparent, rgba(118, 75, 162, 0.03)); }
.deploy-steps { display: flex; flex-direction: column; gap: 0; max-width: 720px; margin: 0 auto; }
.deploy-step {
  display: flex; gap: 28px; padding: 22px 0; position: relative;
}
.deploy-step:not(:last-child)::after {
  content: ''; position: absolute; left: 23px; bottom: -12px;
  width: 2px; height: 44px;
  background: linear-gradient(180deg, var(--primary), transparent);
}
.step-circle {
  width: 52px; height: 52px; border-radius: 50%;
  background: var(--gradient); display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 0.95rem; color: white; flex-shrink: 0;
  box-shadow: 0 4px 20px rgba(102, 126, 234, 0.5);
}
.step-body h3 { font-size: 1.22rem; font-weight: 700; margin-bottom: 10px; }
.step-body p { color: var(--text-secondary); line-height: 1.7; }

/* === CONTACT === */
.contact-section { padding: 120px 0; }
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.contact-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 40px 30px;
  text-decoration: none; color: var(--text-primary);
  transition: var(--transition); cursor: pointer; text-align: center;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.contact-card:hover { transform: translateY(-6px); }
.contact-card.wechat:hover { border-color: rgba(7, 193, 96, 0.55); background: rgba(7, 193, 96, 0.05); box-shadow: 0 20px 50px rgba(7, 193, 96, 0.15); }
.contact-card.telegram:hover { border-color: rgba(79, 172, 254, 0.55); background: rgba(79, 172, 254, 0.05); box-shadow: 0 20px 50px rgba(79, 172, 254, 0.15); }
.contact-card.whatsapp:hover { border-color: rgba(37, 211, 102, 0.55); background: rgba(37, 211, 102, 0.05); box-shadow: 0 20px 50px rgba(37, 211, 102, 0.15); }

.contact-icon {
  width: 60px; height: 60px; border-radius: 18px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 18px; background: rgba(255, 255, 255, 0.04);
}
.contact-card.wechat .contact-icon { color: #07c160; }
.contact-card.telegram .contact-icon { color: #4facfe; }
.contact-card.whatsapp .contact-icon { color: #25d366; }

.contact-card h4 { font-size: 1.12rem; font-weight: 700; margin-bottom: 8px; }
.contact-value { font-size: 1.02rem; color: var(--text-secondary); margin-bottom: 14px; font-family: 'SF Mono', Consolas, monospace; }
.contact-hint { font-size: 0.85rem; color: var(--accent-2); }

/* === FOOTER === */
.footer { padding: 60px 0 30px; background: rgba(0, 0, 0, 0.4); border-top: 1px solid var(--border); position: relative; z-index: 1; }
.footer-main { display: grid; grid-template-columns: 1.5fr 2fr; gap: 60px; margin-bottom: 44px; }
.footer-brand .nav-logo { margin-bottom: 14px; }
.footer-brand p { color: var(--text-secondary); line-height: 1.7; max-width: 280px; font-size: 0.9rem; }
.footer-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.footer-col h5 { font-size: 0.95rem; font-weight: 600; margin-bottom: 16px; }
.footer-col a { display: block; color: var(--text-secondary); text-decoration: none; font-size: 0.88rem; margin-bottom: 11px; transition: var(--transition); }
.footer-col a:hover { color: var(--text-primary); transform: translateX(3px); }
.footer-bottom { text-align: center; padding-top: 26px; border-top: 1px solid var(--border); color: var(--text-muted); font-size: 0.82rem; }

/* === COMPARE SECTION === */
.compare-section { padding: 80px 0; }
.compare-table-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.compare-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; min-width: 800px; }
.compare-table thead th {
  background: var(--bg-card); padding: 18px 14px; font-weight: 600; text-align: center;
  border: 1px solid var(--border); color: var(--text-primary);
}
.compare-table thead th.highlight-col {
  background: linear-gradient(180deg, rgba(102, 126, 234, 0.2), rgba(118, 75, 162, 0.1));
  border-color: rgba(102, 126, 234, 0.5);
}
.compare-table thead th.compare-feature { text-align: left; background: var(--bg-card); }
.compare-price { display: block; font-size: 0.8rem; color: var(--text-secondary); font-weight: 400; margin-top: 4px; }
.compare-table tbody td {
  padding: 14px; text-align: center; border: 1px solid var(--border);
  color: var(--text-secondary);
}
.compare-table tbody td.compare-feature { text-align: left; color: var(--text-primary); font-weight: 500; }
.compare-table tbody tr:hover td { background: rgba(102, 126, 234, 0.05); }
.compare-table tbody tr:hover td.highlight-col { background: rgba(102, 126, 234, 0.1); }

/* === TESTIMONIALS === */
.testimonials-section { padding: 80px 0; background: var(--bg-secondary); }
.testimonials-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; }
.testimonial-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 30px; position: relative;
  transition: var(--transition);
}
.testimonial-card:hover { border-color: var(--border-hover); transform: translateY(-4px); }
.testimonial-stars { color: #ffd700; font-size: 1.1rem; margin-bottom: 16px; letter-spacing: 2px; }
.testimonial-text {
  color: var(--text-secondary); line-height: 1.8; font-size: 0.92rem;
  margin-bottom: 24px; font-style: italic;
}
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.author-avatar {
  width: 46px; height: 46px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: white; font-weight: 600; font-size: 1.1rem;
  flex-shrink: 0;
}
.testimonial-author strong { display: block; color: var(--text-primary); font-weight: 600; }
.testimonial-author span { font-size: 0.82rem; color: var(--text-muted); }

/* === FAQ === */
.faq-section { padding: 80px 0; }
.faq-list { max-width: 900px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-md); margin-bottom: 14px; overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--border-hover); }
.faq-question {
  width: 100%; background: none; border: none; color: var(--text-primary);
  padding: 22px 26px; font-size: 0.98rem; font-weight: 500; text-align: left;
  cursor: pointer; display: flex; justify-content: space-between; align-items: center;
  gap: 16px; font-family: inherit;
}
.faq-question:hover { color: var(--accent-2); }
.faq-arrow { transition: transform 0.3s ease; color: var(--text-muted); flex-shrink: 0; }
.faq-item.active .faq-arrow { transform: rotate(180deg); }
.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height 0.3s ease;
}
.faq-answer p {
  padding: 0 26px 22px; color: var(--text-secondary);
  line-height: 1.8; font-size: 0.92rem;
}
.faq-item.active .faq-answer { max-height: 300px; }

/* === REVEAL ANIMATIONS === */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease-out, transform 0.7s ease-out; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* === RESPONSIVE === */
@media (max-width: 1024px) {
  .globe-container { width: 380px; height: 380px; }
  .ring-1 { width: 300px; height: 300px; }
  .ring-2 { width: 330px; height: 330px; }
  .ring-3 { width: 360px; height: 360px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .value-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none; position: fixed; top: 68px; left: 0; right: 0;
    background: rgba(5, 5, 8, 0.98); flex-direction: column;
    padding: 24px; gap: 16px; border-bottom: 1px solid var(--border);
  }
  .nav-menu.active { display: flex; }
  .nav-toggle { display: flex; }
  .nav-actions { display: none; }

  .hero-container { grid-template-columns: 1fr; gap: 40px; }
  .hero-right { order: -1; }
  .globe-container { width: 300px; height: 300px; }
  .ring-1 { width: 240px; height: 240px; }
  .ring-2 { width: 260px; height: 260px; }
  .ring-3 { width: 280px; height: 280px; }

  .hero-stats { flex-wrap: wrap; gap: 24px; }
  .stat-item { padding-right: 16px; }
  .hero-actions { flex-direction: column; }
  .btn-lg { width: 100%; }

  .features-grid { grid-template-columns: 1fr; }
  .scenarios-grid { grid-template-columns: 1fr; }
  .nodes-grid { grid-template-columns: repeat(2, 1fr); }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; }
  .card-image { height: 180px; }
  .pricing-card.featured { transform: none; }
  .pricing-card.featured:hover { transform: translateY(-4px); }
  .value-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .compare-section, .testimonials-section, .faq-section { padding: 50px 0; }
  .compare-table { font-size: 0.8rem; min-width: 600px; }

  .footer-cols { grid-template-columns: 1fr 1fr; }
  .footer-main { grid-template-columns: 1fr; }
  .footer-brand p { max-width: 100%; }
  .recommend-banner { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .nodes-grid { grid-template-columns: 1fr; }
  .service-grid { grid-template-columns: 1fr; }
  .footer-cols { grid-template-columns: 1fr; }
  .hero-title { font-size: 2rem; }
  .stat-value { font-size: 1.8rem; }
  .container { padding: 0 20px; }
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 4px;
  margin-right: 16px;
}

.lang-btn {
  padding: 6px 12px;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-muted);
  user-select: none;
  white-space: nowrap;
}

.lang-btn.active {
  background: var(--gradient);
  color: white;
  box-shadow: 0 2px 12px rgba(102, 126, 234, 0.4);
}

.lang-btn:hover:not(.active) {
  color: var(--text-primary);
}

@media (max-width: 768px) {
  .lang-switch { display: none; }
}