/* ===== CSS Variables - Internet Tech Style ===== */
:root {
  /* Base colors */
  --bg-primary: #0a0e1f;
  --bg-secondary: #0f172a;
  --bg-tertiary: #1e293b;
  --bg-card: rgba(30, 41, 59, 0.45);
  --bg-card-solid: #1e293b;
  --bg-card-hover: rgba(30, 41, 59, 0.7);

  /* Brand gradient - vibrant internet tech */
  --cyan: #22D3EE;
  --blue: #3B82F6;
  --indigo: #6366F1;
  --purple: #8B5CF6;
  --violet: #A78BFA;
  --pink: #EC4899;

  /* Text */
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-tertiary: #64748B;
  --text-muted: #475569;
  --text-bright: #FFFFFF;

  /* Lines & borders */
  --line-color: rgba(148, 163, 184, 0.15);
  --line-color-bright: rgba(148, 163, 184, 0.3);
  --line-accent: rgba(59, 130, 246, 0.3);

  /* Gradients - premium internet tech */
  --grad-primary: linear-gradient(135deg, #22D3EE 0%, #3B82F6 30%, #6366F1 65%, #A78BFA 100%);
  --grad-primary-soft: linear-gradient(135deg, rgba(34, 211, 238, 0.12) 0%, rgba(59, 130, 246, 0.12) 45%, rgba(167, 139, 250, 0.12) 100%);
  --grad-text: linear-gradient(135deg, #67E8F9 0%, #60A5FA 35%, #A78BFA 70%, #C4B5FD 100%);
  --grad-bar: linear-gradient(90deg, #22D3EE 0%, #3B82F6 40%, #8B5CF6 75%, #A78BFA 100%);
  --grad-horizontal: linear-gradient(90deg, transparent 0%, rgba(99, 102, 241, 0.25) 50%, transparent 100%);
  --grad-vertical: linear-gradient(180deg, rgba(34, 211, 238, 0.08) 0%, rgba(99, 102, 241, 0.12) 50%, rgba(167, 139, 250, 0.08) 100%);

  /* Shadows & glows */
  --glow-primary: 0 0 50px rgba(99, 102, 241, 0.3);
  --glow-strong: 0 0 80px rgba(99, 102, 241, 0.45);
  --glow-card: 0 12px 40px -8px rgba(0, 0, 0, 0.4);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.2);

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* Layout */
  --container-max: 1280px;
  --nav-height: 72px;

  /* Font families */
  --font-sans: 'Microsoft YaHei', '微软雅黑', 'PingFang SC', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Microsoft YaHei', '微软雅黑', 'JetBrains Mono', 'Consolas', 'SF Mono', monospace;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }
input, select, textarea { font-family: inherit; font-size: inherit; color: inherit; }

/* ===== Background Layer ===== */
  .bg-layer {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

#particleCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.5;
}

.bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at top, black 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at top, black 0%, transparent 75%);
}

.bg-circuit {
  position: absolute;
  inset: 0;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300' viewBox='0 0 300 300'%3E%3Cg fill='none' stroke='%233B82F6' stroke-width='1'%3E%3Cpath d='M20 20h60v40h40v60h60v30h40v50h40'/%3E%3Cpath d='M120 100h60v40h40'/%3E%3Cpath d='M0 180h80v60h60'/%3E%3Ccircle cx='20' cy='20' r='3' fill='%233B82F6'/%3E%3Ccircle cx='120' cy='60' r='3' fill='%233B82F6'/%3E%3Ccircle cx='220' cy='190' r='3' fill='%233B82F6'/%3E%3C/g%3E%3C/svg%3E");
  background-size: 300px 300px;
}

.bg-glow {
  position: absolute;
  filter: blur(140px);
  opacity: 0.35;
  border-radius: 50%;
}

.bg-glow-1 {
  width: 650px;
  height: 650px;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.35) 0%, transparent 60%);
  top: -280px;
  left: -120px;
}

.bg-glow-2 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(167, 139, 250, 0.3) 0%, transparent 60%);
  top: 15%;
  right: -180px;
}

.bg-glow-3 {
  width: 750px;
  height: 550px;
  background: radial-gradient(ellipse, rgba(99, 102, 241, 0.28) 0%, transparent 60%);
  bottom: -220px;
  left: 10%;
}

/* ===== Container ===== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 32px;
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 100;
  transition: all 0.3s ease;
}

.nav.scrolled {
  background: rgba(10, 14, 31, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--line-color);
}

.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  height: 100%;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo-mark {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(99, 102, 241, 0.25);
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(8px);
  overflow: hidden;
  flex-shrink: 0;
}

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

.logo-text-group {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-text {
  font-size: 17px;
  font-weight: 700;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 0.5px;
}

.logo-sub {
  font-size: 10px;
  font-weight: 500;
  color: var(--text-tertiary);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-top: 2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  justify-content: center;
}

.nav-link {
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.25s ease;
  border-radius: var(--radius-sm);
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(148, 163, 184, 0.08);
}

.nav-link.active {
  color: var(--blue);
  background: rgba(59, 130, 246, 0.1);
}

.nav-cta {
  padding: 9px 20px;
  background: var(--grad-primary);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  color: white;
  transition: all 0.3s ease;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.4);
}

.nav-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
  transform: skewX(-20deg);
  transition: left 0.5s ease;
}

.nav-cta:hover::before { left: 150%; }

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(59, 130, 246, 0.5);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  transition: all 0.3s ease;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
  cursor: pointer;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-sm);
}

.btn svg {
  width: 16px;
  height: 16px;
  transition: transform 0.3s ease;
}

.btn:hover svg {
  transform: translateX(3px);
}

.btn-primary {
  background: var(--grad-primary);
  color: white;
  box-shadow: 0 4px 20px rgba(59, 130, 246, 0.35);
  border: none;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s ease;
}

.btn-primary:hover::before { left: 150%; }

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(59, 130, 246, 0.5);
}

.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  background: rgba(148, 163, 184, 0.08);
  color: var(--text-primary);
  border: 1px solid var(--line-color-bright);
}

.btn-ghost:hover {
  background: rgba(148, 163, 184, 0.15);
  border-color: var(--text-tertiary);
  transform: translateY(-1px);
}

.btn-full { width: 100%; }
.btn-lg { padding: 18px 36px; font-size: 15px; }

/* ===== Hero Section ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  position: relative;
  overflow: hidden;
}

.hero-bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.4;
  pointer-events: none;
  animation: orbFloat 8s ease-in-out infinite;
}

.orb-1 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.4), transparent 70%);
  top: 10%;
  left: 5%;
}

.orb-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.35), transparent 70%);
  top: 5%;
  right: 0;
  animation-delay: 2s;
}

.orb-3 {
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.3), transparent 70%);
  bottom: 10%;
  left: 30%;
  animation-delay: 4s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(20px, -30px) scale(1.05); }
  66% { transform: translate(-10px, 20px) scale(0.95); }
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 80px;
  align-items: center;
  padding: 40px 0 80px;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 16px 7px 12px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid var(--line-accent);
  font-size: 12px;
  color: #60A5FA;
  margin-bottom: 28px;
  border-radius: 100px;
  font-weight: 500;
  letter-spacing: 0.5px;
}

.badge-dot {
  width: 6px;
  height: 6px;
  background: #22D3EE;
  border-radius: 50%;
  box-shadow: 0 0 10px #22D3EE;
  animation: pulseDot 2s ease-in-out infinite;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-title {
  font-size: 40px;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 28px;
  letter-spacing: -1px;
}

.title-line {
  display: block;
  color: var(--text-primary);
  font-size: 32px;
  font-weight: 600;
  margin-bottom: 12px;
  opacity: 0.9;
}

.title-gradient {
  display: block;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.15;
}

.hero-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

/* Hero Stats */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.stat-card {
  padding: 20px 18px;
  background: var(--bg-card);
  border: 1px solid var(--line-color);
  border-radius: var(--radius-md);
  text-align: center;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.stat-card:hover {
  border-color: var(--line-accent);
  transform: translateY(-2px);
  box-shadow: var(--glow-primary);
}

.stat-num {
  font-size: 32px;
  font-weight: 800;
  line-height: 1;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  letter-spacing: -1px;
}

.stat-num span {
  font-size: 16px;
  -webkit-text-fill-color: inherit;
  background: none;
  vertical-align: super;
  margin-left: 1px;
}

.stat-label {
  font-size: 11px;
  color: var(--text-tertiary);
  letter-spacing: 0.3px;
  line-height: 1.4;
}

/* Hero Visual - Dashboard */
.hero-visual {
  position: relative;
  height: 520px;
}

.hero-dashboard {
  position: absolute;
  top: 10px;
  left: 10px;
  right: 0;
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--line-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  animation: floatDash 6s ease-in-out infinite;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), var(--glow-primary);
  overflow: hidden;
}

.hero-dashboard::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--grad-primary);
}

@keyframes floatDash {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.dash-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-color);
}

.dash-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.5px;
}

.dot-live {
  width: 8px;
  height: 8px;
  background: #22C55E;
  border-radius: 50%;
  box-shadow: 0 0 8px #22C55E;
  animation: pulseDot 2s ease-in-out infinite;
}

.dash-time {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-tertiary);
  font-weight: 500;
}

.dash-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
}

.dm-item {
  padding: 14px;
  background: rgba(6, 182, 212, 0.05);
  border: 1px solid var(--line-color);
  border-radius: var(--radius-sm);
}

.dm-label {
  font-size: 10px;
  color: var(--text-tertiary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.dm-value {
  font-size: 22px;
  font-weight: 700;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
  font-family: var(--font-mono);
}

.dm-bar {
  height: 4px;
  background: rgba(148, 163, 184, 0.15);
  border-radius: 2px;
  overflow: hidden;
}

.dm-bar span {
  display: block;
  height: 100%;
  background: var(--grad-bar);
  border-radius: 2px;
  position: relative;
}

.dm-bar span::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 8px;
  height: 100%;
  background: white;
  opacity: 0.5;
  filter: blur(2px);
}

.dash-chart {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--line-color);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 16px;
}

.chart-tabs {
  display: flex;
  gap: 16px;
  margin-bottom: 14px;
}

.chart-tabs span {
  font-size: 11px;
  color: var(--text-tertiary);
  cursor: pointer;
  transition: color 0.2s;
  font-weight: 500;
}

.chart-tabs span.active {
  color: var(--blue);
  position: relative;
}

.chart-tabs span.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--grad-primary);
  border-radius: 1px;
}

.chart-bars-wrap {
  height: 100px;
  position: relative;
}

.chart-bars-wrap::before,
.chart-bars-wrap::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--line-color) 0, var(--line-color) 4px, transparent 4px, transparent 10px);
}

.chart-bars-wrap::before { top: 20%; }
.chart-bars-wrap::after { bottom: 20%; opacity: 0.5; }

.chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 100%;
}

.chart-bars span {
  flex: 1;
  background: var(--grad-bar);
  border-radius: 2px 2px 0 0;
  transition: all 0.3s;
  position: relative;
}

.chart-bars span::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: white;
  opacity: 0.5;
  border-radius: 2px 2px 0 0;
}

.chart-bars span:nth-child(even) { opacity: 0.6; }

.dash-footer {
  display: flex;
  gap: 12px;
}

.dash-tag {
  flex: 1;
  padding: 8px 12px;
  background: rgba(148, 163, 184, 0.06);
  border: 1px solid var(--line-color);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-secondary);
}

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

.tag-dot.green { background: #22C55E; box-shadow: 0 0 6px #22C55E; }
.tag-dot.blue { background: #3B82F6; box-shadow: 0 0 6px #3B82F6; }
.tag-dot.purple { background: #8B5CF6; box-shadow: 0 0 6px #8B5CF6; }

/* Hero Floating Cards */
.hero-float {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--line-color-bright);
  border-radius: var(--radius-md);
  animation: floatDash 5s ease-in-out infinite;
  box-shadow: var(--shadow-card);
}

.hero-float::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--grad-primary);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  opacity: 0.5;
}

.hf-icon {
  font-size: 24px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--grad-primary-soft);
  border-radius: var(--radius-sm);
}

.hf-text {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.hf-text strong {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.hf-text span {
  font-size: 11px;
  color: var(--text-tertiary);
}

.float-1 {
  top: 0;
  right: 10px;
  animation-delay: 1.5s;
}

.float-2 {
  bottom: 30px;
  left: -10px;
  animation-delay: 3s;
}

/* Scroll hint */
.scroll-hint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  color: var(--text-tertiary);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-weight: 500;
}

.scroll-line {
  width: 2px;
  height: 40px;
  position: relative;
  overflow: hidden;
  background: var(--line-color);
  border-radius: 1px;
}

.scroll-line::after {
  content: '';
  position: absolute;
  top: -20px;
  left: 0;
  width: 100%;
  height: 20px;
  background: var(--blue);
  border-radius: 1px;
  animation: scrollDown 2.5s ease-in-out infinite;
}

@keyframes scrollDown {
  0% { top: -20px; }
  100% { top: 100%; }
}

/* ===== Section Base ===== */
.section {
  padding: 110px 0;
  position: relative;
}

.section-header {
  margin-bottom: 56px;
  position: relative;
}

.section-header.center {
  text-align: center;
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 600;
  color: var(--blue);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 14px;
  font-family: var(--font-mono);
}

.section-eyebrow::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--grad-primary);
  border-radius: 1px;
}

.section-header.center .section-eyebrow { justify-content: center; }
.section-header.center .section-eyebrow::before { display: none; }

.section-title {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.5px;
  color: var(--text-primary);
}

.section-title-sm {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.3;
}

.section-desc {
  margin-top: 20px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.section-header p.contact-desc {
  margin-top: 20px;
  margin-bottom: 0;
}

.section-number {
  position: absolute;
  top: -8px;
  right: 0;
  font-size: 100px;
  font-weight: 900;
  color: transparent;
  -webkit-text-stroke: 1px rgba(148, 163, 184, 0.1);
  font-family: var(--font-mono);
  line-height: 0.8;
  z-index: 0;
  letter-spacing: -4px;
  pointer-events: none;
}

.section-header.center .section-number {
  right: 50%;
  transform: translateX(50%);
  top: -16px;
}

/* ===== Business Section ===== */
.biz-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.biz-card {
  padding: 32px 28px;
  background: var(--bg-card);
  border: 1px solid var(--line-color);
  border-radius: var(--radius-lg);
  transition: all 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.biz-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--grad-primary);
  transform: scaleX(0.3);
  transform-origin: left;
  transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
  opacity: 0;
}

.biz-card:hover::before {
  transform: scaleX(1);
  opacity: 1;
}

.biz-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-accent);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3), var(--glow-primary);
  background: var(--bg-card-hover);
}

.biz-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--grad-primary-soft);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  color: var(--cyan);
}

.biz-icon svg {
  width: 26px;
  height: 26px;
}

.biz-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.biz-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== Timeline Section ===== */
.section-timeline {
  padding-bottom: 90px;
}

.timeline-row {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 0;
  max-width: 1100px;
  margin: 0 auto;
  position: relative;
}

.timeline-row::before {
  content: '';
  position: absolute;
  top: 42px;
  left: 40px;
  right: 40px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--blue), var(--purple), var(--purple));
  opacity: 0.3;
}

.tl-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  position: relative;
  z-index: 1;
  padding: 0 10px;
}

.tl-year {
  font-size: 32px;
  font-weight: 800;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-family: var(--font-mono);
  letter-spacing: -1px;
  line-height: 1;
}

.tl-card {
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--line-color);
  border-radius: var(--radius-md);
  text-align: center;
  backdrop-filter: blur(10px);
  width: 100%;
  transition: all 0.3s;
}

.tl-card:hover {
  border-color: var(--line-accent);
  transform: translateY(-2px);
  box-shadow: var(--glow-primary);
}

.tl-card::before {
  content: '';
  display: block;
  width: 12px;
  height: 12px;
  background: var(--bg-primary);
  border: 2px solid var(--blue);
  border-radius: 50%;
  margin: -26px auto 14px;
  box-shadow: 0 0 12px var(--blue);
  position: relative;
  z-index: 2;
}

.tl-card h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.tl-card p {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.tl-arrow {
  display: none;
}

/* ===== Services Section ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.service-card {
  padding: 36px 32px;
  background: var(--bg-card);
  border: 1px solid var(--line-color);
  border-radius: var(--radius-lg);
  transition: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--grad-primary);
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
  opacity: 0.6;
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-accent);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3), var(--glow-primary);
  background: var(--bg-card-hover);
}

.service-card.service-wide {
  grid-column: span 2;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 36px;
  align-items: start;
}

.service-num {
  position: absolute;
  top: 24px;
  right: 28px;
  font-size: 64px;
  font-weight: 900;
  opacity: 0.05;
  color: var(--text-primary);
  font-family: var(--font-mono);
  line-height: 1;
  letter-spacing: -2px;
}

.service-wide .service-num {
  position: static;
  font-size: 80px;
  grid-row: span 2;
  opacity: 0.08;
  align-self: center;
}

.service-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--grad-primary-soft);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}

.service-icon svg {
  width: 28px;
  height: 28px;
  color: var(--cyan);
}

.service-wide .service-icon {
  display: none;
}

.service-card h3 {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
  position: relative;
  z-index: 1;
}

.service-card > p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 18px;
  position: relative;
  z-index: 1;
}

.service-body > p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  position: relative;
  z-index: 1;
}

.service-tags span {
  padding: 5px 12px;
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.15);
  font-size: 11px;
  color: #60A5FA;
  border-radius: 100px;
  font-weight: 500;
}

.service-features {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  position: relative;
  z-index: 1;
}

.service-features span {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}

.service-features span::before {
  content: '';
  width: 6px;
  height: 6px;
  background: #22C55E;
  border-radius: 50%;
  box-shadow: 0 0 6px rgba(34, 197, 94, 0.5);
}

/* ===== About Section ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-text p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 18px;
}

.about-text p strong {
  color: var(--text-primary);
  font-weight: 600;
}

.about-text p:last-of-type { margin-bottom: 28px; }

.about-vision {
  padding: 28px 32px;
  background: var(--grad-vertical);
  border: 1px solid var(--line-accent);
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}

.vision-lines {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.vl-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.vl-dot {
  width: 10px;
  height: 10px;
  background: var(--grad-primary);
  border-radius: 50%;
  margin-top: 6px;
  flex-shrink: 0;
  box-shadow: 0 0 12px var(--blue);
}

.vl-item strong {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.vl-item p {
  font-size: 13px;
  color: var(--text-secondary);
  margin: 0;
}

.about-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.am-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--bg-card);
  border: 1px solid var(--line-color);
  border-radius: var(--radius-md);
  backdrop-filter: blur(10px);
}

.am-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.am-item strong {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.am-item p {
  font-size: 11px;
  color: var(--text-tertiary);
  margin: 0;
  line-height: 1.4;
}

/* About Visual */
.about-visual {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.about-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.about-stat-card {
  padding: 28px 20px;
  background: var(--bg-card);
  border: 1px solid var(--line-color);
  border-radius: var(--radius-lg);
  text-align: center;
  backdrop-filter: blur(10px);
  transition: all 0.3s;
}

.about-stat-card:hover {
  transform: translateY(-2px);
  border-color: var(--line-accent);
  box-shadow: var(--glow-primary);
}

.as-num {
  font-size: 40px;
  font-weight: 800;
  line-height: 1;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-family: var(--font-mono);
  margin-bottom: 8px;
  letter-spacing: -2px;
}

.as-num span {
  font-size: 18px;
  background: none;
  -webkit-text-fill-color: inherit;
}

.as-label {
  font-size: 12px;
  color: var(--text-tertiary);
  letter-spacing: 0.5px;
}

.about-card-visual {
  padding: 40px 32px;
  background: var(--grad-primary-soft);
  border: 1px solid var(--line-accent);
  border-radius: var(--radius-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.about-card-visual::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.2), transparent 70%);
  pointer-events: none;
}

.acv-title {
  font-size: 12px;
  color: var(--text-tertiary);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
  position: relative;
}

.acv-big {
  font-size: 36px;
  font-weight: 800;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 10px;
  letter-spacing: 2px;
  position: relative;
}

.acv-sub {
  font-size: 13px;
  color: var(--text-secondary);
  position: relative;
}

/* ===== AI Section ===== */
.section-ai {
  position: relative;
  overflow: hidden;
}

.ai-bg-net {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.net-node {
  position: absolute;
  width: 6px;
  height: 6px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--cyan), 0 0 24px rgba(6, 182, 212, 0.5);
  opacity: 0.5;
  animation: nodePulse 4s ease-in-out infinite;
}

.net-node.n1 { top: 15%; left: 8%; animation-delay: 0s; }
.net-node.n2 { top: 25%; right: 12%; width: 8px; height: 8px; background: var(--purple); box-shadow: 0 0 14px var(--purple); animation-delay: 0.8s; }
.net-node.n3 { top: 55%; left: 15%; width: 5px; height: 5px; background: var(--blue); box-shadow: 0 0 10px var(--blue); animation-delay: 1.6s; }
.net-node.n4 { bottom: 20%; right: 18%; width: 7px; height: 7px; background: var(--cyan); animation-delay: 2.4s; }
.net-node.n5 { top: 70%; left: 40%; width: 4px; height: 4px; background: var(--indigo); box-shadow: 0 0 8px var(--indigo); animation-delay: 0.4s; }
.net-node.n6 { top: 10%; right: 35%; width: 5px; height: 5px; background: var(--purple); animation-delay: 2s; opacity: 0.4; }

@keyframes nodePulse {
  0%, 100% { transform: scale(1); opacity: 0.4; }
  50% { transform: scale(1.8); opacity: 0.8; }
}

.net-line {
  position: absolute;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0.15;
  transform-origin: left;
}

.net-line.nl-1 { top: 20%; left: 10%; width: 200px; transform: rotate(15deg); }
.net-line.nl-2 { top: 30%; right: 15%; width: 250px; transform: rotate(-20deg); background: linear-gradient(90deg, transparent, var(--purple), transparent); }
.net-line.nl-3 { top: 60%; left: 18%; width: 180px; transform: rotate(-10deg); background: linear-gradient(90deg, transparent, var(--blue), transparent); }
.net-line.nl-4 { bottom: 25%; right: 20%; width: 220px; transform: rotate(25deg); }
.net-line.nl-5 { top: 75%; left: 42%; width: 160px; transform: rotate(5deg); background: linear-gradient(90deg, transparent, var(--indigo), transparent); opacity: 0.1; }

.section-eyebrow-ai {
  background: var(--grad-primary-soft);
  border: 1px solid var(--line-accent);
  padding: 8px 20px;
  border-radius: 100px;
  font-family: var(--font-sans);
  letter-spacing: 1px;
  text-transform: none;
  gap: 12px;
}

.section-eyebrow-ai::before { display: none; }

.ai-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 10px;
  background: rgba(6, 182, 212, 0.15);
  border-radius: 100px;
  font-size: 10px;
  font-weight: 700;
  color: #67E8F9;
  letter-spacing: 0.5px;
}

.ai-chip svg {
  width: 12px;
  height: 12px;
}

.ai-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 18px;
  position: relative;
  z-index: 1;
}

.ai-card {
  padding: 30px 26px;
  background: var(--bg-card);
  border: 1px solid var(--line-color);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.ai-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--grad-primary);
  transform: scaleX(0.25);
  transform-origin: left;
  transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
  opacity: 0;
}

.ai-card:hover::before {
  transform: scaleX(1);
  opacity: 1;
}

.ai-card:hover {
  transform: translateY(-6px);
  border-color: var(--line-accent);
  box-shadow: 0 20px 56px rgba(0, 0, 0, 0.35), var(--glow-strong);
  background: var(--bg-card-hover);
}

.ai-icon-wrap {
  position: relative;
  width: 56px;
  height: 56px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ai-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--grad-primary-soft);
  border: 1px solid var(--line-accent);
  border-radius: var(--radius-md);
  position: relative;
  z-index: 1;
  color: var(--cyan);
}

.ai-icon svg {
  width: 26px;
  height: 26px;
}

.ai-glow-ring {
  position: absolute;
  inset: -8px;
  border: 1px solid rgba(6, 182, 212, 0.3);
  border-radius: 50%;
  animation: ringPulse 3s ease-in-out infinite;
  opacity: 0;
}

.ai-card:hover .ai-glow-ring {
  opacity: 1;
}

@keyframes ringPulse {
  0%, 100% { transform: scale(0.8); opacity: 0.8; }
  50% { transform: scale(1.2); opacity: 0.3; }
}

.ai-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
  position: relative;
}

.ai-card > p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 18px;
  flex: 1;
}

.ai-card-feat {
  /*grid-row: span 2;*/
  background: linear-gradient(180deg, rgba(6, 182, 212, 0.08) 0%, var(--bg-card) 60%);
  border-color: var(--line-accent);
}

.ai-card-feat .ai-icon {
  width: 64px;
  height: 64px;
}

.ai-card-feat .ai-icon svg {
  width: 30px;
  height: 30px;
}

.ai-card-feat h3 {
  font-size: 20px;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.ai-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: auto;
}

.ai-metrics .am-item {
  padding: 14px 12px;
  background: rgba(6, 182, 212, 0.06);
  border: 1px solid var(--line-color);
  border-radius: var(--radius-sm);
  text-align: center;
}

.am-val {
  font-size: 22px;
  font-weight: 800;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-family: var(--font-mono);
  line-height: 1;
  margin-bottom: 4px;
}

.am-lab {
  font-size: 10px;
  color: var(--text-tertiary);
  letter-spacing: 0.5px;
}

.ai-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.ai-tags span {
  padding: 5px 12px;
  background: rgba(139, 92, 246, 0.08);
  border: 1px solid rgba(139, 92, 246, 0.2);
  font-size: 11px;
  color: #A78BFA;
  border-radius: 100px;
  font-weight: 500;
}

.ai-card-wide {
  grid-column: span 2;
  flex-direction: row;
  gap: 24px;
  align-items: center;
  background: linear-gradient(90deg, rgba(139, 92, 246, 0.06) 0%, var(--bg-card) 50%);
  border-color: var(--line-accent);
}

.ai-card-wide::before {
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  transform: scaleY(0.25);
  background: var(--grad-primary);
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.ai-card-wide:hover::before {
  transform: scaleY(1);
}

.ai-card-wide .ai-icon-wrap {
  margin-bottom: 0;
  flex-shrink: 0;
}

.ai-card-wide .ai-icon {
  width: 64px;
  height: 64px;
}

.ai-card-wide .ai-icon svg {
  width: 30px;
  height: 30px;
}

.ai-card-body {
  flex: 1;
}

.ai-card-body h3 {
  margin-bottom: 10px;
}

.ai-card-body > p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 18px;
}

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

.ap-item {
  padding: 14px 14px;
  background: rgba(139, 92, 246, 0.05);
  border: 1px solid var(--line-color);
  border-radius: var(--radius-sm);
}

.ap-item strong {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.ap-item span {
  font-size: 11px;
  color: var(--text-tertiary);
}

/* ===== Tech Section ===== */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}

.tech-category {
  padding: 24px 26px;
  background: var(--bg-card);
  border: 1px solid var(--line-color);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  transition: all 0.3s;
}

.tech-category:hover {
  border-color: var(--line-accent);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.tech-category.tech-wide {
  grid-column: span 2;
}

.tech-cat-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-color);
}

.tc-icon {
  font-size: 22px;
}

.tech-cat-header h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tech-tags span {
  padding: 6px 14px;
  background: rgba(148, 163, 184, 0.06);
  border: 1px solid var(--line-color);
  font-size: 12px;
  color: var(--text-secondary);
  border-radius: 100px;
  transition: all 0.2s;
  font-family: var(--font-mono);
  font-size: 11px;
}

.tech-tags span:hover {
  background: rgba(59, 130, 246, 0.1);
  border-color: var(--line-accent);
  color: var(--blue);
  transform: translateY(-1px);
}

.tech-focus {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 22px 28px;
  background: var(--grad-primary-soft);
  border: 1px solid var(--line-accent);
  border-radius: var(--radius-lg);
  flex-wrap: wrap;
}

.tf-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--blue);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-family: var(--font-mono);
  flex-shrink: 0;
}

.tf-items {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  flex: 1;
}

.tf-items span {
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 12px;
  color: var(--text-primary);
  border-radius: 6px;
  font-weight: 500;
}

/* ===== Products Section ===== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 80px;
}

.product-card {
  padding: 28px 24px;
  background: var(--bg-card);
  border: 1px solid var(--line-color);
  border-radius: var(--radius-lg);
  transition: all 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--grad-primary);
  transform: scaleX(0.4);
  transform-origin: left;
  transition: transform 0.5s ease;
}

.product-card:hover::before { transform: scaleX(1); }

.product-card:hover {
  transform: translateY(-6px);
  border-color: var(--line-accent);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3), var(--glow-primary);
  background: var(--bg-card-hover);
}

.product-icon {
  font-size: 40px;
  margin-bottom: 16px;
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--grad-primary-soft);
  border-radius: var(--radius-md);
}

.product-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.product-sub {
  font-size: 11px;
  color: var(--text-tertiary);
  letter-spacing: 1px;
  text-transform: uppercase;
  font-family: var(--font-mono);
  margin-bottom: 14px;
}

.product-card > p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 18px;
}

.product-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--blue);
  font-weight: 500;
  transition: gap 0.2s;
}

.product-link svg {
  width: 12px;
  height: 12px;
  transition: transform 0.2s;
}

.product-link:hover {
  gap: 10px;
  color: var(--cyan);
}

.product-link-disabled {
  color: var(--text-tertiary);
  cursor: default;
}

.product-link-disabled:hover { gap: 6px; }

/* Partners */
.partners-section {
  padding-top: 20px;
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}

.partner-item {
  padding: 18px 12px;
  background: var(--bg-card);
  border: 1px solid var(--line-color);
  border-radius: var(--radius-md);
  text-align: center;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.3s;
  backdrop-filter: blur(10px);
}

.partner-item:hover {
  border-color: var(--line-accent);
  color: var(--text-primary);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

/* ===== Cases Section ===== */
.case-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 40px;
  padding: 6px;
  background: var(--bg-card);
  border: 1px solid var(--line-color);
  border-radius: 100px;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
  backdrop-filter: blur(10px);
}

.case-tab {
  padding: 10px 22px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 100px;
  transition: all 0.3s;
}

.case-tab:hover { color: var(--text-primary); }

.case-tab.active {
  background: var(--grad-primary);
  color: white;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.case-panel { display: none; }
.case-panel.active { display: block; }

.case-card {
  margin-bottom: 24px;
  background: var(--bg-card);
  border: 1px solid var(--line-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  backdrop-filter: blur(10px);
  transition: all 0.3s;
}

.case-card:last-child { margin-bottom: 0; }

.case-card:hover {
  border-color: var(--line-accent);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}

.case-header {
  padding: 28px 36px;
  background: var(--grad-vertical);
  border-bottom: 1px solid var(--line-color);
  position: relative;
}

.case-cat {
  display: inline-block;
  padding: 5px 14px;
  background: var(--grad-primary);
  color: white;
  font-size: 11px;
  font-weight: 600;
  border-radius: 100px;
  margin-bottom: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.case-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
}

.case-body {
  padding: 32px 36px;
}

.case-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 32px;
  margin-bottom: 24px;
}

.case-section-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--blue);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 10px;
  font-family: var(--font-mono);
}

.case-section p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* Case highlights */
.case-highlights {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  padding-top: 24px;
  border-top: 1px solid var(--line-color);
}

.ch-item {
  text-align: center;
  padding: 20px 14px;
  background: rgba(59, 130, 246, 0.05);
  border: 1px solid var(--line-color);
  border-radius: var(--radius-md);
}

.ch-num {
  font-size: 24px;
  font-weight: 800;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  line-height: 1;
}

.ch-num span {
  font-size: 14px;
  background: none;
  -webkit-text-fill-color: inherit;
}

.ch-label {
  font-size: 11px;
  color: var(--text-tertiary);
  line-height: 1.5;
}

.case-tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 24px;
  border-top: 1px solid var(--line-color);
}

.case-tags-row span {
  padding: 7px 16px;
  background: rgba(148, 163, 184, 0.08);
  border: 1px solid var(--line-color);
  font-size: 12px;
  color: var(--text-secondary);
  border-radius: 100px;
  font-weight: 500;
}

/* ===== Delivery Section ===== */
.delivery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  max-width: 1200px;
  margin: 0 auto;
}

.delivery-card {
  padding: 30px;
  background: var(--bg-card);
  border: 1px solid var(--line-color);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  transition: all 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
  display: flex;
  gap: 20px;
  align-items: flex-start;
  position: relative;
  overflow: hidden;
}

.delivery-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--grad-primary);
  opacity: 0;
  transition: opacity 0.3s;
}

.delivery-card:hover::before { opacity: 1; }

.delivery-card:hover {
  transform: translateX(6px);
  border-color: var(--line-accent);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.25), var(--glow-primary);
  background: var(--bg-card-hover);
}

.delivery-card.delivery-wide {
  grid-column: span 2;
}

.dc-icon {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--grad-primary-soft);
  border-radius: var(--radius-md);
  position: relative;
}

.dc-num {
  font-size: 18px;
  font-weight: 700;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-family: var(--font-mono);
}

.delivery-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.delivery-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.dc-body { flex: 1; }

/* ===== Contact Section ===== */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 64px;
  align-items: start;
}

.contact-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin: 0 0 28px;
}

.contact-includes {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
}

.include-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--text-primary);
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--line-color);
  border-radius: var(--radius-md);
  backdrop-filter: blur(10px);
}

.include-check {
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(34, 197, 94, 0.15);
  color: #22C55E;
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

.contact-note {
  font-size: 12px;
  color: var(--text-tertiary);
  padding: 10px 14px;
  border-left: 2px solid var(--line-color-bright);
  background: rgba(148, 163, 184, 0.05);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 28px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ci-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  background: var(--bg-card);
  border: 1px solid var(--line-color);
  border-radius: var(--radius-md);
  backdrop-filter: blur(10px);
}

.ci-icon {
  font-size: 24px;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--grad-primary-soft);
  border-radius: var(--radius-sm);
}

.ci-item strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.ci-item p {
  font-size: 12px;
  color: var(--text-tertiary);
  margin: 0;
}

/* Contact Form */
.contact-cta-card {
  padding: 48px 40px;
  background: linear-gradient(145deg, rgba(34, 211, 238, 0.08) 0%, rgba(99, 102, 241, 0.1) 50%, rgba(167, 139, 250, 0.08) 100%);
  border: 1px solid var(--line-accent);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), var(--glow-primary);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.contact-cta-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--grad-primary);
}

.contact-cta-card::after {
  content: '';
  position: absolute;
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.15), transparent 60%);
  pointer-events: none;
}

.cta-card-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--cyan);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 20px;
  font-family: var(--font-mono);
  position: relative;
}

.cta-phone-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 24px;
  position: relative;
}

.cta-phone-icon {
  font-size: 36px;
  animation: phoneRing 2.5s ease-in-out infinite;
}

@keyframes phoneRing {
  0%, 100% { transform: rotate(0); }
  10%, 30% { transform: rotate(-10deg); }
  20%, 40% { transform: rotate(10deg); }
  50% { transform: rotate(0); }
}

.cta-phone {
  font-size: 42px;
  font-weight: 800;
  letter-spacing: 2px;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-family: var(--font-mono);
}

.cta-card-divider {
  height: 1px;
  background: var(--grad-horizontal);
  margin: 24px 0 20px;
  position: relative;
}

.cta-card-tagline {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
  position: relative;
}

.cta-gradient {
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}

.cta-card-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 28px;
  position: relative;
}

.cta-call-btn {
  position: relative;
  padding: 16px;
  font-size: 15px;
}

.form-row {
  margin-bottom: 18px;
}

.form-row:last-of-type { margin-bottom: 26px; }

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
}

.required {
  color: #F87171;
  margin-left: 2px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--line-color);
  font-size: 14px;
  color: var(--text-primary);
  transition: all 0.25s;
  outline: none;
  border-radius: var(--radius-sm);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.12);
  background: rgba(15, 23, 42, 0.9);
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.form-group select:focus {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%233B82F6' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
  line-height: 1.6;
}

.form-success {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.25);
  color: #4ADE80;
  font-size: 14px;
  margin-top: 16px;
  border-radius: var(--radius-sm);
}

.form-success.show { display: flex; }

.form-success svg {
  width: 20px;
  height: 20px;
}

/* ===== Bottom CTA ===== */
.section-bottom-cta {
  padding: 0 0 100px;
}

.bottom-cta {
  padding: 56px 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  background: var(--grad-primary-soft);
  border: 1px solid var(--line-accent);
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(20px);
}

.bottom-cta::before {
  content: '';
  position: absolute;
  top: -60%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.2), transparent 60%);
  pointer-events: none;
}

.cta-content h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
  position: relative;
}

.cta-content p {
  font-size: 15px;
  color: var(--text-secondary);
  position: relative;
}

/* ===== Footer ===== */
.footer {
  padding: 56px 0 28px;
  border-top: 1px solid var(--line-color);
  background: rgba(10, 14, 31, 0.8);
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: 64px;
  margin-bottom: 40px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.footer-desc {
  font-size: 12px;
  color: var(--text-tertiary);
  line-height: 1.8;
  max-width: 440px;
}

.footer-links-group {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-col h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-color);
  position: relative;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 32px;
  height: 2px;
  background: var(--grad-primary);
  border-radius: 1px;
}

.footer-col a {
  display: block;
  font-size: 13px;
  color: var(--text-tertiary);
  padding: 4px 0;
  transition: color 0.2s;
}

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

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--text-tertiary);
  padding: 4px 0;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--line-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-copyright {
  font-size: 12px;
  color: var(--text-muted);
}

.footer-seo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--text-muted);
}

/* ===== Scroll Reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.7s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  
  .nav-links.open {
    display: flex;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(10, 14, 31, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 16px;
    gap: 4px;
    border-bottom: 1px solid var(--line-color);
  }
  
  .hero-inner,
  .about-grid,
  .contact-wrap {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .hero-visual {
    height: 440px;
    order: -1;
    max-width: 520px;
    margin: 0 auto;
    width: 100%;
  }
  
  .hero-content { text-align: center; }
  .hero-actions, .hero-stats { justify-content: center; }
  .hero-subtitle { margin-left: auto; margin-right: auto; }
  
  .biz-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: 1fr; }
  .service-card.service-wide { grid-column: span 1; grid-template-columns: 1fr; gap: 0; }
  .service-wide .service-num { position: absolute; font-size: 64px; }

  .ai-grid { grid-template-columns: repeat(2, 1fr); grid-template-rows: auto; }
  .ai-card-feat { grid-row: span 1; grid-column: span 2; }
  .ai-card-wide { grid-column: span 2; }
  
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .partners-grid { grid-template-columns: repeat(4, 1fr); }
  .case-grid-2 { grid-template-columns: 1fr; }
  .delivery-grid { grid-template-columns: 1fr; }
  .delivery-card.delivery-wide { grid-column: span 1; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  
  .timeline-row {
    flex-direction: column;
    gap: 0;
    align-items: flex-start;
    padding-left: 30px;
  }
  
  .timeline-row::before {
    top: 20px;
    bottom: 20px;
    left: 9px;
    right: auto;
    width: 2px;
    height: auto;
    background: linear-gradient(180deg, var(--cyan), var(--blue), var(--purple));
  }
  
  .tl-item {
    flex-direction: row;
    align-items: flex-start;
    gap: 20px;
    padding: 10px 0;
    width: 100%;
  }
  
  .tl-year {
    font-size: 24px;
    width: 70px;
    flex-shrink: 0;
  }
  
  .tl-card::before {
    margin: 0;
    position: absolute;
    left: -38px;
    top: 20px;
  }
}

@media (max-width: 768px) {
  :root { --nav-height: 64px; }
  .container { padding: 0 20px; }
  .nav-inner { padding: 0 20px; }
  .section { padding: 64px 0; }
  .section-title { font-size: 28px; }
  .section-title-sm { font-size: 22px; }
  .section-number { font-size: 60px; }
  
  .hero { min-height: auto; padding-top: calc(var(--nav-height) + 16px); }
  .hero-title { font-size: 32px; }
  .title-line { font-size: 22px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  
  .biz-grid { grid-template-columns: 1fr; }
  .tech-grid { grid-template-columns: 1fr; }
  .tech-category.tech-wide { grid-column: span 1; }
  .tech-focus { flex-direction: column; align-items: flex-start; }

  .ai-grid { grid-template-columns: 1fr; }
  .ai-card-feat { grid-column: span 1; }
  .ai-card-wide { grid-column: span 1; flex-direction: column; align-items: flex-start; }
  .ai-pillars { grid-template-columns: 1fr; }

  .products-grid { grid-template-columns: 1fr; }
  .partners-grid { grid-template-columns: repeat(3, 1fr); }
  
  .case-tabs {
    width: 100%;
    overflow-x: auto;
    border-radius: var(--radius-lg);
    justify-content: flex-start;
  }
  
  .case-tab { white-space: nowrap; }
  
  .case-header, .case-body { padding: 22px 24px; }
  .case-title { font-size: 18px; }
  .case-highlights { grid-template-columns: repeat(2, 1fr); }
  
  .about-meta { grid-template-columns: 1fr; }
  .about-stats-grid { grid-template-columns: repeat(2, 1fr); }
  
  .bottom-cta {
    padding: 36px 28px;
    flex-direction: column;
    text-align: center;
  }
  
  .cta-content h2 { font-size: 22px; }
  
  .contact-form { padding: 28px 22px; }
  .form-row-2 { grid-template-columns: 1fr; }
  
  .footer-links-group { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  
  .hero-visual { height: 400px; }
  .delivery-card { flex-direction: column; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 26px; }
  .title-line { font-size: 18px; }
  .section-title { font-size: 24px; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; }
  .stat-num { font-size: 26px; }
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
  .case-highlights { grid-template-columns: 1fr; }
  .cta-phone { font-size: 30px; }
}