/* ============================================
   CSS Variables & Reset
   ============================================ */
:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.7);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-1: #06b6d4;   /* cyan */
  --accent-2: #3b82f6;   /* blue */
  --accent-3: #8b5cf6;   /* violet */
  --accent-glow: rgba(6, 182, 212, 0.15);
  --border-color: rgba(148, 163, 184, 0.1);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --font-cn: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-en: 'Outfit', sans-serif;
  --max-width: 1200px;
  --nav-height: 72px;
}

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

html { scroll-behavior: smooth; }

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

/* ============================================
   Background Effects
   ============================================ */
#bg-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
}

.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
  pointer-events: none;
  z-index: 0;
}
.bg-glow--1 { width: 600px; height: 600px; top: -200px; right: -100px; background: var(--accent-2); }
.bg-glow--2 { width: 500px; height: 500px; bottom: -150px; left: -100px; background: var(--accent-3); }
.bg-glow--3 { width: 400px; height: 400px; top: 50%; left: 50%; transform: translate(-50%, -50%); background: var(--accent-1); opacity: 0.06; }

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 14, 26, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  transition: background 0.3s;
}
.nav.scrolled {
  background: rgba(10, 14, 26, 0.9);
}

.nav-inner {
  width: 100%;
  max-width: var(--max-width);
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}
.nav-logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-3));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 14px;
  color: #fff;
}
.nav-logo-text {
  font-family: var(--font-cn);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 1px;
}
.nav-logo-text small {
  font-weight: 300;
  font-size: 11px;
  color: var(--text-secondary);
  display: block;
  letter-spacing: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.3s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
  transition: width 0.3s;
  border-radius: 2px;
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  color: #fff !important;
  padding: 8px 20px;
  border-radius: 50px;
  font-weight: 600 !important;
  transition: transform 0.3s, box-shadow 0.3s !important;
}
.nav-cta:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 8px 24px rgba(6, 182, 212, 0.3);
}
.nav-cta::after { display: none !important; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: 0.3s;
}

/* ============================================
   Sections Common
   ============================================ */
.section {
  position: relative;
  z-index: 1;
  padding: 120px 24px;
}
.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-label {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent-1);
  margin-bottom: 16px;
  padding: 4px 16px;
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-radius: 50px;
  background: rgba(6, 182, 212, 0.05);
}

.section-title {
  font-family: var(--font-cn);
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
}
.section-title .highlight {
  background: linear-gradient(135deg, var(--accent-1), var(--accent-3));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.8;
}

.mobile-only { display: none; }

/* reveal animation */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.8s ease, transform 0.8s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ============================================
   Hero
   ============================================ */
.hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
}
.hero-inner {
  max-width: var(--max-width);
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--accent-1);
  font-weight: 500;
  margin-bottom: 24px;
  padding: 6px 16px;
  border-radius: 50px;
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.15);
}
.hero-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--accent-1);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-title {
  font-family: var(--font-cn);
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -0.5px;
}
.hero-title .gradient {
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2), var(--accent-3));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 540px;
}

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

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 50px;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  color: #fff;
  font-family: var(--font-cn);
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s;
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(6, 182, 212, 0.3);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 50px;
  background: transparent;
  color: var(--text-primary);
  font-family: var(--font-cn);
  font-weight: 500;
  font-size: 15px;
  text-decoration: none;
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: border-color 0.3s, background 0.3s;
}
.btn-secondary:hover {
  border-color: var(--accent-1);
  background: rgba(6, 182, 212, 0.05);
}

/* Hero Visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-card {
  width: 100%;
  max-width: 520px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(12px);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
  position: relative;
  overflow: hidden;
}
.hero-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2), var(--accent-3));
}

.hero-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.hero-card-header .dots { display: flex; gap: 6px; }
.hero-card-header .dots span {
  width: 10px; height: 10px;
  border-radius: 50%;
}
.hero-card-header .dots span:nth-child(1) { background: #ef4444; }
.hero-card-header .dots span:nth-child(2) { background: #f59e0b; }
.hero-card-header .dots span:nth-child(3) { background: #22c55e; }
.hero-card-header .card-title {
  font-family: var(--font-en);
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 1px;
  font-weight: 500;
}

.hero-card-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}
.hero-card-stat {
  background: rgba(148, 163, 184, 0.05);
  border-radius: var(--radius-sm);
  padding: 16px;
}
.hero-card-stat .num {
  font-family: var(--font-en);
  font-size: 28px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}
.hero-card-stat .label {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.hero-card-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
}
.hero-card-bar:last-child { border-bottom: none; }
.hero-card-bar .bar-track {
  flex: 1;
  height: 8px;
  background: rgba(148, 163, 184, 0.1);
  border-radius: 4px;
  overflow: hidden;
}
.hero-card-bar .bar-fill {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
  width: 0;
  transition: width 1.5s ease;
}
.hero-card-bar .bar-label {
  font-size: 13px;
  color: var(--text-secondary);
  min-width: 80px;
}
.hero-card-bar .bar-pct {
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-1);
  min-width: 40px;
  text-align: right;
}

/* floating elements */
.float-el {
  position: absolute;
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  font-family: var(--font-en);
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-color);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
  animation: float 6s ease-in-out infinite;
  color: var(--accent-1);
}
.float-el--1 { top: -20px; right: -20px; animation-delay: 0s; width: 52px; background: rgba(6, 182, 212, 0.12); border-color: rgba(6, 182, 212, 0.2); }
.float-el--2 { bottom: -10px; left: -30px; animation-delay: 2s; color: var(--accent-2); background: rgba(59, 130, 246, 0.12); border-color: rgba(59, 130, 246, 0.2); }
.float-el--3 { top: 40%; right: -40px; animation-delay: 4s; width: 36px; height: 36px; font-size: 16px; color: var(--accent-3); background: rgba(139, 92, 246, 0.12); border-color: rgba(139, 92, 246, 0.2); }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ============================================
   About
   ============================================ */
.about { background: var(--bg-secondary); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.about-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}
.about-value {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 20px;
  transition: border-color 0.3s, transform 0.3s;
}
.about-value:hover {
  border-color: rgba(6, 182, 212, 0.3);
  transform: translateY(-2px);
}
.about-value .icon {
  font-size: 24px;
  margin-bottom: 8px;
}
.about-value h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}
.about-value p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.about-stat {
  text-align: center;
  padding: 32px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: border-color 0.3s;
}
.about-stat:hover { border-color: rgba(6, 182, 212, 0.3); }
.about-stat .num {
  font-family: var(--font-en);
  font-size: 40px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-3));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.about-stat .label {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 8px;
}

/* ============================================
   Product (佳客CRM)
   ============================================ */
.product-header {
  text-align: center;
  margin-bottom: 60px;
}
.product-header .section-desc {
  margin: 0 auto;
}

.product-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
}
#product .product-showcase {
  grid-template-columns: 1fr 1.25fr;
}
#filter .product-showcase {
  grid-template-columns: 1.25fr 1fr;
}

.product-info .product-name {
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--accent-1);
  margin-bottom: 12px;
  text-transform: uppercase;
}
.product-info h3 {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.3;
}
.product-info p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
}

.product-features-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.product-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  list-style: none;
  font-size: 14px;
  color: var(--text-secondary);
}
.product-features-list li .check {
  width: 20px; height: 20px;
  border-radius: 50%;
  background: rgba(6, 182, 212, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.product-features-list li .check svg {
  width: 12px; height: 12px;
  fill: var(--accent-1);
}

.product-image {
  position: relative;
}
.product-mockup {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 24px 48px rgba(0,0,0,0.4);
  width: 100%;
}
.product-mockup-top {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 20px;
  background: rgba(148, 163, 184, 0.05);
  border-bottom: 1px solid var(--border-color);
}
.product-mockup-top span:nth-child(-n+3) {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.product-mockup-top span:nth-child(1) { background: #ef4444; }
.product-mockup-top span:nth-child(2) { background: #f59e0b; }
.product-mockup-top span:nth-child(3) { background: #22c55e; }

.product-mockup-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.product-mockup-body .row {
  display: flex;
  gap: 12px;
  align-items: center;
}
.product-mockup-body .avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  flex-shrink: 0;
}
.product-mockup-body .avatar:nth-child(2) { background: linear-gradient(135deg, var(--accent-2), var(--accent-3)); }
.product-mockup-body .avatar:nth-child(3) { background: linear-gradient(135deg, #f59e0b, #ef4444); }

.product-mockup-body .line {
  flex: 1;
  height: 10px;
  border-radius: 4px;
  background: rgba(148, 163, 184, 0.1);
}
.product-mockup-body .line.wide { width: 70%; }
.product-mockup-body .line.medium { width: 50%; }
.product-mockup-body .line.narrow { width: 30%; }

.product-mockup-body .chart-area {
  height: 120px;
  background: rgba(148, 163, 184, 0.05);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: flex-end;
  padding: 0 20px 12px;
  gap: 8px;
}
.product-mockup-body .chart-area .bar {
  flex: 1;
  border-radius: 3px 3px 0 0;
  background: linear-gradient(180deg, var(--accent-1), rgba(6, 182, 212, 0.2));
  height: 0;
  transition: height 1.5s ease;
}
.product-mockup-body .chart-area .bar:nth-child(2) { background: linear-gradient(180deg, var(--accent-2), rgba(59, 130, 246, 0.2)); }
.product-mockup-body .chart-area .bar:nth-child(3) { background: linear-gradient(180deg, var(--accent-3), rgba(139, 92, 246, 0.2)); }

/* Feature Cards Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: border-color 0.3s, transform 0.3s;
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 2px;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
  opacity: 0;
  transition: opacity 0.3s;
}
.feature-card:hover {
  border-color: rgba(6, 182, 212, 0.3);
  transform: translateY(-4px);
}
.feature-card:hover::before { opacity: 1; }

.feature-card .icon-wrap {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
  background: rgba(6, 182, 212, 0.1);
  position: relative;
  color: var(--accent-1);
}
.feature-card:nth-child(2n) .icon-wrap { color: var(--accent-2); }
.feature-card:nth-child(3n) .icon-wrap { color: var(--accent-3); }
.feature-card .icon-wrap::after {
  content: '';
  width: 20px;
  height: 20px;
  background: currentColor;
  opacity: 0.5;
  -webkit-mask-size: contain;
  mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
}
/* SVG icon masks for feature cards - simple geometric shapes */
.feature-card:nth-child(1) .icon-wrap::after { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 2L2 7l10 5 10-5-10-5zM2 17l10 5 10-5M2 12l10 5 10-5' stroke='white' stroke-width='2' fill='none'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 2L2 7l10 5 10-5-10-5zM2 17l10 5 10-5M2 12l10 5 10-5' stroke='white' stroke-width='2' fill='none'/%3E%3C/svg%3E"); }
.feature-card:nth-child(2) .icon-wrap::after { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Crect x='3' y='3' width='7' height='7' rx='1' fill='white'/%3E%3Crect x='14' y='3' width='7' height='7' rx='1' fill='white'/%3E%3Crect x='3' y='14' width='7' height='7' rx='1' fill='white'/%3E%3Crect x='14' y='14' width='7' height='7' rx='1' fill='white'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Crect x='3' y='3' width='7' height='7' rx='1' fill='white'/%3E%3Crect x='14' y='3' width='7' height='7' rx='1' fill='white'/%3E%3Crect x='3' y='14' width='7' height='7' rx='1' fill='white'/%3E%3Crect x='14' y='14' width='7' height='7' rx='1' fill='white'/%3E%3C/svg%3E"); }
.feature-card:nth-child(3) .icon-wrap::after { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M5 12h14M12 5l7 7-7 7' stroke='white' stroke-width='2' fill='none'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M5 12h14M12 5l7 7-7 7' stroke='white' stroke-width='2' fill='none'/%3E%3C/svg%3E"); }
.feature-card:nth-child(4) .icon-wrap::after { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='10' fill='none' stroke='white' stroke-width='2'/%3E%3Cpath d='M12 6v6l4 2' stroke='white' stroke-width='2' fill='none'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='10' fill='none' stroke='white' stroke-width='2'/%3E%3Cpath d='M12 6v6l4 2' stroke='white' stroke-width='2' fill='none'/%3E%3C/svg%3E"); }
.feature-card:nth-child(5) .icon-wrap::after { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Crect x='3' y='11' width='18' height='10' rx='2' fill='none' stroke='white' stroke-width='2'/%3E%3Ccircle cx='12' cy='16' r='2' fill='white'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Crect x='3' y='11' width='18' height='10' rx='2' fill='none' stroke='white' stroke-width='2'/%3E%3Ccircle cx='12' cy='16' r='2' fill='white'/%3E%3C/svg%3E"); }
.feature-card:nth-child(6) .icon-wrap::after { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M20 12H4M12 4v16M4 12l3-3M4 12l3 3M20 12l-3-3M20 12l-3 3' stroke='white' stroke-width='2' fill='none'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M20 12H4M12 4v16M4 12l3-3M4 12l3 3M20 12l-3-3M20 12l-3 3' stroke='white' stroke-width='2' fill='none'/%3E%3C/svg%3E"); }
.feature-card h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ============================================
   CTA Section
   ============================================ */
.cta {
  text-align: center;
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}
.cta::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.06), transparent 70%);
  pointer-events: none;
}
.cta .section-title {
  font-size: clamp(28px, 4vw, 44px);
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
  flex-wrap: wrap;
}
.cta-hint {
  margin-top: 20px;
  font-size: 13px;
  color: var(--text-muted);
}
.cta-hint a {
  color: var(--accent-1);
  text-decoration: none;
}
.cta-hint a:hover { text-decoration: underline; }

/* ============================================
   Footer
   ============================================ */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border-color);
  padding: 48px 24px 32px;
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer-brand p {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 12px;
  max-width: 300px;
  line-height: 1.7;
}
.footer-col h5 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-family: var(--font-en);
}
.footer-col a {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  text-decoration: none;
  margin-bottom: 8px;
  transition: color 0.3s;
}
.footer-col a:hover { color: var(--accent-1); }

.footer-bottom {
  max-width: var(--max-width);
  margin: 32px auto 0;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-muted);
}
.footer-bottom-links { display: flex; gap: 24px; }
.footer-bottom-links a { color: var(--text-muted); text-decoration: none; }
.footer-bottom-links a:hover { color: var(--accent-1); }

/* ============================================
   Mobile
   ============================================ */
@media (max-width: 900px) {
  .hero-inner,
  .about-grid,
  .product-showcase { grid-template-columns: 1fr; gap: 40px; }

  .features-grid { grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-brand { grid-column: 1 / -1; }

  .hero-visual { order: -1; }

  .mobile-only { display: inline; }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 14, 26, 0.98);
    backdrop-filter: blur(20px);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border-color);
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
}

@media (max-width: 600px) {
  .features-grid { grid-template-columns: 1fr; }
  .about-values { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: 1fr 1fr; gap: 12px; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .hero-card { padding: 20px; }
  .hero-card-stats { gap: 10px; }
  .hero-card-stat { padding: 12px; }
  .hero-card-stat .num { font-size: 22px; }
}