/* ============================================================
   BESENC Design System v3.0
   百万级国际科技公司官网标准
   参考: Stripe / Vercel / Linear / Notion / Cloudflare
   ============================================================ */

/* ========== INTER FONT LOAD ========== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ========== CSS VARIABLES ========== */
:root {
  /* Brand Colors */
  --primary: #0066FF;
  --primary-light: #3385FF;
  --primary-dark: #0052CC;
  --primary-50: #EBF0FF;
  --primary-100: #D6E4FF;
  --primary-200: #ADC8FF;
  --secondary: #00C2FF;
  --secondary-light: #33CFFF;
  --secondary-dark: #009ECC;

  /* Neutral Colors */
  --bg-page: #F8FAFC;
  --bg-white: #FFFFFF;
  --bg-muted: #F1F5F9;
  --bg-subtle: #F8FAFC;
  --bg-dark: #0F172A;
  --bg-dark-card: #1E293B;
  --bg-dark-elevated: #334155;

  /* Text Colors */
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-tertiary: #94A3B8;
  --text-muted: #9CA3AF;
  --text-on-dark: #F8FAFC;
  --text-on-dark-secondary: #94A3B8;
  --text-on-dark-tertiary: #64748B;

  /* Border Colors */
  --border: #E2E8F0;
  --border-light: #F1F5F9;
  --border-subtle: #F8FAFC;
  --border-hover: #CBD5E1;
  --border-dark: rgba(255,255,255,.08);
  --border-dark-hover: rgba(255,255,255,.15);

  /* Status Colors */
  --success: #10B981;
  --success-light: #34D399;
  --success-bg: #ECFDF5;
  --warning: #F59E0B;
  --warning-bg: #FFFBEB;
  --error: #EF4444;
  --error-bg: #FEF2F2;
  --info: #3B82F6;
  --info-bg: #EFF6FF;

  /* Shadows - Enterprise Grade */
  --shadow-xs: 0 1px 2px rgba(0,0,0,.03);
  --shadow-sm: 0 2px 4px rgba(15,23,42,.03), 0 1px 2px rgba(15,23,42,.02);
  --shadow: 0 4px 8px rgba(15,23,42,.04), 0 1px 3px rgba(15,23,42,.02);
  --shadow-md: 0 8px 16px rgba(15,23,42,.05), 0 2px 4px rgba(15,23,42,.02);
  --shadow-lg: 0 16px 32px rgba(15,23,42,.06), 0 4px 8px rgba(15,23,42,.02);
  --shadow-xl: 0 24px 48px rgba(15,23,42,.07), 0 8px 16px rgba(15,23,42,.02);
  --shadow-2xl: 0 32px 64px rgba(15,23,42,.1), 0 16px 32px rgba(15,23,42,.04);
  --shadow-primary: 0 4px 14px rgba(0,102,255,.15);
  --shadow-primary-lg: 0 8px 24px rgba(0,102,255,.2);
  --shadow-inner: inset 0 2px 4px rgba(0,0,0,.04);

  /* Radius */
  --radius-xs: 6px;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --radius-2xl: 28px;
  --radius-full: 9999px;

  /* Spacing */
  --section-padding: 128px;
  --section-padding-tablet: 88px;
  --section-padding-mobile: 64px;
  --container-max: 1200px;
  --container-wide: 1400px;

  /* Typography Scale */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  --text-xs: .75rem;
  --text-sm: .875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --text-7xl: 4.5rem;
  --leading-tight: 1.15;
  --leading-snug: 1.3;
  --leading-normal: 1.6;
  --leading-relaxed: 1.75;
  --tracking-tight: -.03em;
  --tracking-normal: 0;
  --tracking-wide: .02em;
  --tracking-wider: .05em;
  --tracking-widest: .1em;

  /* Transitions */
  --transition-fast: .12s cubic-bezier(.4,0,.2,1);
  --transition: .2s cubic-bezier(.4,0,.2,1);
  --transition-smooth: .35s cubic-bezier(.4,0,.2,1);
  --transition-slow: .5s cubic-bezier(.4,0,.2,1);
  --transition-spring: .6s cubic-bezier(.34,1.56,.64,1);

  /* Z-index Scale */
  --z-base: 0;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-popover: 500;
  --z-toast: 600;
  --z-nav: 1000;
  --z-mobile-menu: 999;
  --z-announcement: 1001;
}

/* ========== RESET & BASE ========== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; text-rendering: optimizeLegibility; }
body {
  font-family: var(--font-family);
  color: var(--text-primary);
  background: var(--bg-page);
  overflow-x: hidden;
  line-height: var(--leading-normal);
  font-size: var(--text-base);
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
}
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }
::selection { background: var(--primary-100); color: var(--primary-dark); }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-hover); }

/* ========== TYPOGRAPHY SYSTEM ========== */
.h1 { font-size: var(--text-7xl); font-weight: 800; line-height: var(--leading-tight); letter-spacing: var(--tracking-tight); color: var(--text-primary); }
.h2 { font-size: var(--text-5xl); font-weight: 800; line-height: var(--leading-tight); letter-spacing: var(--tracking-tight); color: var(--text-primary); }
.h3 { font-size: var(--text-3xl); font-weight: 700; line-height: var(--leading-snug); letter-spacing: var(--tracking-tight); color: var(--text-primary); }
.h4 { font-size: var(--text-2xl); font-weight: 700; line-height: var(--leading-snug); letter-spacing: var(--tracking-tight); color: var(--text-primary); }
.h5 { font-size: var(--text-xl); font-weight: 600; line-height: var(--leading-snug); color: var(--text-primary); }
.h6 { font-size: var(--text-lg); font-weight: 600; line-height: var(--leading-normal); color: var(--text-primary); }
.text-body { font-size: var(--text-base); line-height: var(--leading-relaxed); color: var(--text-secondary); }
.text-body-lg { font-size: var(--text-lg); line-height: var(--leading-relaxed); color: var(--text-secondary); }
.text-caption { font-size: var(--text-sm); line-height: var(--leading-normal); color: var(--text-tertiary); }
.text-overline { font-size: var(--text-xs); font-weight: 700; letter-spacing: var(--tracking-widest); text-transform: uppercase; color: var(--text-tertiary); }
.text-gradient {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ========== NAVIGATION ========== */
.nav {
  position: fixed; top: 0; left: 0; width: 100%; z-index: var(--z-nav);
  padding: 14px 60px; display: flex; align-items: center; justify-content: space-between;
  transition: all .4s cubic-bezier(.4,0,.2,1);
  background: rgba(255,255,255,.88);
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav.scrolled {
  background: rgba(255,255,255,.95);
  -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-hover);
  padding: 10px 60px;
}
.nav-logo { display: flex; align-items: center; gap: 12px; }
.nav-logo img { height: 52px; transition: all var(--transition); }
.nav-logo span { font-size: 22px; font-weight: 800; color: var(--text-primary); letter-spacing: 1px; }
.nav-menu { display: flex; gap: 28px; align-items: center; }
.nav-menu a {
  font-size: 14px; font-weight: 600; color: var(--text-secondary);
  padding: 8px 14px; border-radius: 10px; transition: all .3s;
  position: relative; letter-spacing: .1px;
}
.nav-menu a::after {
  content: ''; position: absolute; bottom: 2px; left: 14px; right: 14px;
  height: 2px; background: var(--primary); border-radius: 2px;
  transform: scaleX(0); transition: transform .3s;
}
.nav-menu a:hover::after, .nav-menu a.active::after { transform: scaleX(1); }
.nav-menu a:hover { color: var(--primary); background: var(--primary-50); }
.nav-menu a.active { color: var(--primary); font-weight: 600; }
.nav-contact {
  padding: 16px 36px; border-radius: 14px; background: var(--primary);
  color: #fff; font-size: 16px; font-weight: 600; border: none;
  transition: all .3s; box-shadow: 0 4px 14px rgba(0,102,255,.2);
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
}
.nav-contact:hover {
  background: var(--primary-dark); transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,102,255,.3);
}

/* Language Switcher */
.nav-lang {
  display: flex; align-items: center; gap: 2px; margin-right: 8px;
  background: var(--bg-muted); border-radius: var(--radius-sm); padding: 2px;
}
.nav-lang button {
  padding: 5px 10px; border-radius: 6px; border: none;
  font-size: 12px; font-weight: 600; color: var(--text-tertiary);
  background: transparent; transition: all var(--transition); cursor: pointer;
  letter-spacing: .3px;
}
.nav-lang button.active { background: var(--bg-white); color: var(--text-primary); box-shadow: var(--shadow-xs); }
.nav-lang button:hover:not(.active) { color: var(--text-secondary); }

/* Hamburger */
.nav-hamburger {
  display: none; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--bg-white); border: 1px solid var(--border);
  cursor: pointer; position: relative; z-index: calc(var(--z-nav) + 1);
  transition: background .3s;
}
.nav-hamburger span {
  display: block; width: 22px; height: 2px; border-radius: 2px;
  background: var(--text-primary); transition: all .3s cubic-bezier(.4,0,.2,1);
  position: absolute;
}
.nav-hamburger span:nth-child(1) { transform: translateY(-7px); }
.nav-hamburger span:nth-child(3) { transform: translateY(7px); }
.nav-hamburger.active span:nth-child(1) { transform: rotate(45deg); }
.nav-hamburger.active span:nth-child(2) { opacity: 0; }
.nav-hamburger.active span:nth-child(3) { transform: rotate(-45deg); }

/* Mobile Menu */
.nav-mobile-menu {
  display: none; flex-direction: column; position: fixed; top: 0; left: 0;
  width: 100%; height: 100vh; background: rgba(255,255,255,.97);
  -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
  z-index: var(--z-mobile-menu); padding: 90px 30px 40px; gap: 0;
  opacity: 0; transform: translateY(-10px);
  transition: opacity .35s ease, transform .35s ease; pointer-events: none;
}
.nav-mobile-menu.open { opacity: 1; transform: translateY(0); pointer-events: auto; }
.nav-mobile-menu a {
  font-size: 18px; font-weight: 600; color: var(--text-secondary);
  padding: 18px 0; border-bottom: 1px solid var(--border);
  transition: color .3s; display: flex; align-items: center;
}
.nav-mobile-menu a.active { color: var(--primary); }
.nav-mobile-menu a:hover { color: var(--primary); }
.nav-mobile-menu a svg { margin-right: 12px; opacity: .4; flex-shrink: 0; }
.nav-mobile-menu a:hover svg, .nav-mobile-menu a.active svg { opacity: .8; stroke: var(--primary); }
.mm-close {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  margin-top: auto; padding: 14px; border-radius: var(--radius);
  background: var(--primary-50); color: var(--text-secondary);
  font-size: 14px; font-weight: 500; cursor: pointer; transition: all var(--transition);
}
.mm-close:hover { background: var(--primary-100); color: var(--primary); }
.mm-close svg { opacity: .5; }

/* Mobile Overlay */
.mobile-overlay {
  position: fixed; inset: 0; background: rgba(15,23,42,.15); z-index: var(--z-overlay);
  opacity: 0; visibility: hidden; transition: all var(--transition);
}
.mobile-overlay.open { opacity: 1; visibility: visible; }

/* ========== SECTION COMMON ========== */
.section { padding: var(--section-padding) 48px; }
.section-header { text-align: center; margin-bottom: 72px; max-width: 720px; margin-left: auto; margin-right: auto; }
.section-tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 16px; border-radius: var(--radius-full);
  background: var(--primary-50); color: var(--primary);
  font-size: 12px; font-weight: 600; letter-spacing: var(--tracking-wider); margin-bottom: 20px;
  border: 1px solid var(--primary-100); text-transform: uppercase;
}
.section-tag svg { flex-shrink: 0; }
.section-title {
  font-size: var(--text-5xl); font-weight: 800; color: var(--text-primary);
  margin-bottom: 16px; letter-spacing: var(--tracking-tight); line-height: var(--leading-tight);
}
.section-desc {
  font-size: var(--text-lg); color: var(--text-secondary);
  max-width: 600px; margin: 0 auto; line-height: var(--leading-relaxed);
}

/* ========== BUTTONS ========== */
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; border-radius: var(--radius); background: var(--primary);
  color: #fff; font-size: 14px; font-weight: 600; border: none;
  transition: all var(--transition); box-shadow: var(--shadow-primary);
  cursor: pointer; letter-spacing: .1px;
}
.btn-primary:hover {
  background: var(--primary-dark); transform: translateY(-1px);
  box-shadow: var(--shadow-primary-lg);
}
.btn-primary:active { transform: translateY(0); box-shadow: var(--shadow-primary); }
.btn-primary-lg { padding: 16px 36px; font-size: 15px; border-radius: var(--radius-md); }

.btn-outline {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; border-radius: var(--radius);
  background: var(--bg-white); color: var(--text-primary);
  font-size: 14px; font-weight: 600; border: 1px solid var(--border);
  transition: all var(--transition); cursor: pointer; letter-spacing: .1px;
}
.btn-outline:hover {
  border-color: var(--primary); color: var(--primary);
  background: var(--primary-50); transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}
.btn-outline-lg { padding: 16px 36px; font-size: 15px; border-radius: var(--radius-md); }

.btn-ghost {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; border-radius: var(--radius);
  background: transparent; color: var(--primary);
  font-size: 14px; font-weight: 600; border: none;
  transition: all var(--transition); cursor: pointer;
}
.btn-ghost:hover { background: var(--primary-50); }

.btn-dark {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; border-radius: var(--radius);
  background: var(--bg-dark); color: var(--text-on-dark);
  font-size: 14px; font-weight: 600; border: none;
  transition: all var(--transition); cursor: pointer;
}
.btn-dark:hover { background: var(--bg-dark-card); transform: translateY(-1px); box-shadow: var(--shadow-lg); }

/* ========== CARDS ========== */
.card {
  background: var(--bg-white); border-radius: var(--radius-xl);
  border: 1px solid var(--border-light); padding: 32px;
  transition: all var(--transition-smooth);
  box-shadow: var(--shadow-xs);
}
.card:hover {
  transform: translateY(-4px); box-shadow: var(--shadow-lg);
  border-color: var(--border);
}
.card-elevated {
  background: var(--bg-white); border-radius: var(--radius-xl);
  border: none; padding: 32px;
  box-shadow: var(--shadow);
  transition: all var(--transition-smooth);
}
.card-elevated:hover {
  transform: translateY(-4px); box-shadow: var(--shadow-lg);
}
.card-flat {
  background: var(--bg-muted); border-radius: var(--radius-xl);
  border: none; padding: 32px;
}

/* ========== DATA PANEL ========== */
.data-panel {
  background: var(--bg-white); border-radius: var(--radius-xl);
  padding: 40px; box-shadow: var(--shadow);
  position: relative; overflow: hidden;
  border: 1px solid var(--border-light);
}
.data-panel::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 2px; background: linear-gradient(90deg, var(--primary), var(--secondary));
}
.data-panel-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 32px;
}
.data-panel-item { text-align: center; }
.data-panel-value {
  font-size: 40px; font-weight: 800; color: var(--text-primary);
  letter-spacing: var(--tracking-tight); line-height: 1.1; margin-bottom: 4px;
  font-feature-settings: 'tnum';
}
.data-panel-value .unit { font-size: 18px; font-weight: 600; color: var(--text-tertiary); margin-left: 2px; }
.data-panel-label {
  font-size: 13px; color: var(--text-secondary); font-weight: 500;
  letter-spacing: .3px;
}
.data-panel-trend {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 11px; font-weight: 600; padding: 2px 8px;
  border-radius: var(--radius-full); margin-top: 4px;
}
.data-panel-trend.up { background: var(--success-bg); color: var(--success); }
.data-panel-trend.stable { background: var(--primary-50); color: var(--primary); }

/* ========== GLOBAL NETWORK MAP ========== */
.global-map-section {
  position: relative; padding: var(--section-padding) 48px;
  background: var(--bg-dark); color: var(--text-on-dark);
  overflow: hidden;
}
.global-map-section::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 40%, rgba(0,102,255,.06), transparent);
  pointer-events: none;
}
.gm-header { text-align: center; margin-bottom: 64px; position: relative; z-index: 1; }
.gm-tag {
  background: rgba(0,102,255,.1) !important; color: #60A5FA !important;
  border: 1px solid rgba(0,102,255,.15) !important;
}
.gm-title {
  font-size: var(--text-5xl); font-weight: 800; color: var(--text-on-dark);
  letter-spacing: var(--tracking-tight); margin-bottom: 16px;
}
.gm-desc {
  font-size: var(--text-lg); color: var(--text-on-dark-secondary); max-width: 600px;
  margin: 0 auto; line-height: var(--leading-relaxed);
}
.gm-map-wrap {
  max-width: 1000px; margin: 0 auto; position: relative; z-index: 1;
  padding: 0 20px;
}
.gm-world-svg { width: 100%; display: block; }
.gm-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 16px; max-width: 880px; margin: 56px auto 0;
  position: relative; z-index: 1;
}
.gm-stat-card {
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius-lg); padding: 24px 20px;
  text-align: center; transition: all var(--transition-smooth);
}
.gm-stat-card:hover {
  background: rgba(255,255,255,.06);
  border-color: rgba(0,102,255,.15);
  transform: translateY(-3px);
}
.gm-stat-value {
  font-size: 28px; font-weight: 800; color: var(--text-on-dark);
  letter-spacing: var(--tracking-tight); margin-bottom: 4px;
  font-feature-settings: 'tnum';
}
.gm-stat-label {
  font-size: 12px; color: var(--text-on-dark-tertiary); letter-spacing: var(--tracking-wider);
  text-transform: uppercase; margin-bottom: 12px; font-weight: 600;
}
.gm-stat-bar {
  height: 2px; background: rgba(255,255,255,.06);
  border-radius: 1px; overflow: hidden;
}
.gm-stat-fill {
  height: 100%; border-radius: 1px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: width 1.5s cubic-bezier(.4,0,.2,1);
}
.gm-stat-fill--cyan {
  background: linear-gradient(90deg, var(--secondary), var(--primary));
}

/* ========== LOGO WALL ========== */
.logo-wall {
  display: flex; align-items: center; justify-content: center;
  gap: 48px; flex-wrap: wrap; opacity: .4;
  filter: grayscale(100%);
  transition: all var(--transition-smooth);
}
.logo-wall:hover { opacity: .7; filter: grayscale(0); }
.logo-wall img { height: 28px; }

/* ========== ICON WRAPS ========== */
.icon-wrap {
  width: 52px; height: 52px; border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition); flex-shrink: 0;
}
.icon-wrap-primary { background: var(--primary-50); color: var(--primary); }
.icon-wrap-secondary { background: #E0F7FF; color: var(--secondary); }
.icon-wrap-success { background: var(--success-bg); color: var(--success); }
.icon-wrap-warning { background: var(--warning-bg); color: var(--warning); }
.icon-wrap-dark { background: var(--bg-dark); color: var(--text-on-dark); }

/* ========== FEATURE GRID ========== */
.feature-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--bg-white); border-radius: var(--radius-xl);
  border: 1px solid var(--border-light); padding: 36px;
  transition: all var(--transition-smooth);
}
.feature-card:hover {
  transform: translateY(-4px); box-shadow: var(--shadow-lg);
  border-color: var(--border);
}
.feature-card .icon-wrap { margin-bottom: 20px; }
.feature-card h3 {
  font-size: var(--text-lg); font-weight: 700; color: var(--text-primary);
  margin-bottom: 8px; letter-spacing: var(--tracking-tight);
}
.feature-card p {
  font-size: var(--text-sm); color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* ========== CTA SECTION ========== */
.cta-section {
  background: var(--bg-dark); border-radius: var(--radius-2xl);
  padding: 80px 60px; text-align: center;
  position: relative; overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 50%, rgba(0,102,255,.1), transparent);
  pointer-events: none;
}
.cta-title {
  font-size: var(--text-4xl); font-weight: 800; color: var(--text-on-dark);
  letter-spacing: var(--tracking-tight); margin-bottom: 16px;
  position: relative; z-index: 1;
}
.cta-desc {
  font-size: var(--text-lg); color: var(--text-on-dark-secondary);
  max-width: 520px; margin: 0 auto 32px; line-height: var(--leading-relaxed);
  position: relative; z-index: 1;
}
.cta-actions {
  display: flex; gap: 12px; justify-content: center; flex-wrap: wrap;
  position: relative; z-index: 1;
}

/* ========== FOOTER ========== */
.footer {
  background: var(--bg-dark); color: var(--text-on-dark-secondary);
  padding: 80px 48px 0;
}
.footer-main {
  display: flex; justify-content: space-between; gap: 48px;
  margin-bottom: 48px; padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.footer-brand { max-width: 300px; }
.footer-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 17px; font-weight: 700; color: var(--text-on-dark);
  margin-bottom: 14px;
}
.footer-logo img { height: 30px; }
.footer-desc { font-size: 13px; line-height: var(--leading-relaxed); margin-bottom: 20px; color: var(--text-on-dark-tertiary); }
.footer-contact-list { list-style: none; }
.footer-contact-list li {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; margin-bottom: 8px; color: var(--text-on-dark-tertiary);
}
.footer-contact-list svg { flex-shrink: 0; opacity: .3; }
.footer-contact-list a { color: var(--text-on-dark-tertiary); transition: color var(--transition); }
.footer-contact-list a:hover { color: var(--secondary-light); }
.footer-links { display: flex; gap: 56px; }
.footer-col h4 {
  font-size: 12px; font-weight: 600; color: var(--text-on-dark);
  margin-bottom: 16px; text-transform: uppercase; letter-spacing: var(--tracking-widest);
}
.footer-col a {
  display: block; font-size: 13px; margin-bottom: 10px;
  color: var(--text-on-dark-tertiary); transition: all var(--transition);
}
.footer-col a:hover { color: var(--text-on-dark-secondary); padding-left: 3px; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding: 24px 0; font-size: 12px; color: rgba(255,255,255,.25);
  border-top: 1px solid rgba(255,255,255,.04);
}
.footer-bottom a { color: rgba(255,255,255,.3); margin-left: 16px; transition: color var(--transition); }
.footer-bottom a:hover { color: var(--text-on-dark-secondary); }

/* ========== ANIMATIONS ========== */
[data-anim] { opacity: 0; transition: opacity .7s cubic-bezier(.4,0,.2,1), transform .7s cubic-bezier(.4,0,.2,1), filter .7s ease; }
[data-anim="fade-up"] { transform: translateY(40px); }
[data-anim="fade-down"] { transform: translateY(-40px); }
[data-anim="fade-left"] { transform: translateX(-40px); }
[data-anim="fade-right"] { transform: translateX(40px); }
[data-anim="zoom-in"] { transform: scale(.92); }
[data-anim="blur-in"] { filter: blur(8px); transform: translateY(20px); }
[data-anim="slide-up"] { transform: translateY(60px); opacity: 0; }
[data-anim].anim-visible { opacity: 1 !important; transform: none !important; filter: none !important; }

/* Stagger animation */
.stagger > * { opacity: 0; transform: translateY(24px); transition: opacity .5s cubic-bezier(.4,0,.2,1), transform .5s cubic-bezier(.4,0,.2,1); }
.stagger.visible > * { opacity: 1; transform: translateY(0); }
.stagger.visible > *:nth-child(1) { transition-delay: 0s; }
.stagger.visible > *:nth-child(2) { transition-delay: .05s; }
.stagger.visible > *:nth-child(3) { transition-delay: .1s; }
.stagger.visible > *:nth-child(4) { transition-delay: .15s; }
.stagger.visible > *:nth-child(5) { transition-delay: .2s; }
.stagger.visible > *:nth-child(6) { transition-delay: .25s; }
.stagger.visible > *:nth-child(7) { transition-delay: .3s; }
.stagger.visible > *:nth-child(8) { transition-delay: .35s; }
.stagger.visible > *:nth-child(9) { transition-delay: .4s; }

/* ========== UTILITY ========== */
.text-primary { color: var(--primary); }
.text-secondary-color { color: var(--secondary); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-muted { color: var(--text-muted); }
.fw-500 { font-weight: 500; }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }
.fw-800 { font-weight: 800; }
.container { max-width: var(--container-max); margin: 0 auto; }
.container-wide { max-width: var(--container-wide); margin: 0 auto; }
.section-divider {
  height: 1px; max-width: 200px; margin: 0 auto;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  border: none;
}
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ========== RESPONSIVE ========== */
@media (max-width: 1200px) {
  .section { padding: var(--section-padding-tablet) 40px; }
  .section-title { font-size: var(--text-4xl); }
  .data-panel-value { font-size: 36px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 1024px) {
  .nav { padding: 14px 20px; }
  .nav.scrolled { padding: 10px 20px; }
  .nav-menu { display: none; }
  .nav-contact { display: none; }
  .nav-lang { display: none; }
  .nav-hamburger { display: flex; }
  .section { padding: var(--section-padding-tablet) 28px; }
  .section-title { font-size: var(--text-3xl); }
  .footer { padding: 60px 28px 0; }
  .footer-links { gap: 36px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-section { padding: 60px 32px; border-radius: var(--radius-xl); }
}

@media (max-width: 767px) {
  .nav { padding: 10px 16px; }
  .nav.scrolled { padding: 8px 16px; }
  .section { padding: var(--section-padding-mobile) 16px; }
  .section-header { margin-bottom: 40px; }
  .section-title { font-size: var(--text-2xl); }
  .section-desc { font-size: var(--text-base); }
  .footer { padding: 48px 16px 0; }
  .footer-main { flex-direction: column; gap: 28px; }
  .footer-links { gap: 28px; flex-wrap: wrap; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .data-panel { padding: 20px; }
  .data-panel-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .data-panel-value { font-size: 28px; }
  .btn-primary, .btn-outline { padding: 10px 22px; font-size: 13px; }
  .feature-grid { grid-template-columns: 1fr; }
  .gm-stats { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .gm-stat-value { font-size: 22px; }
  .gm-stat-card { padding: 18px 14px; }
  .cta-section { padding: 48px 20px; }
  .cta-title { font-size: var(--text-2xl); }
  .cta-desc { font-size: var(--text-base); }
}