/* NH88 Quantum Matrix Style - 量子矩阵风格 */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;700;900&family=Roboto:wght@300;400;500;600&display=swap');

/* CSS Variables - Quantum Matrix Theme */
:root {
  /* Colors (refined, accessible) */
  --quantum-black: #0b0f14;
  --quantum-dark: #0f1720;
  --quantum-darker: #0b1320;
  --quantum-white: #ffffff;
  --quantum-gray: #2a3441;
  --quantum-light-gray: #5a6878;

  --cyber-blue: #22d3ee;         /* cyan-400 */
  --cyber-blue-dark: #0891b2;     /* cyan-700 */
  --digital-green: #22c55e;       /* emerald-500 */
  --digital-green-dark: #15803d;  /* emerald-700 */
  --matrix-purple: #8b5cf6;       /* violet-500 */
  --matrix-purple-dark: #6d28d9;  /* violet-700 */
  --neon-pink: #ec4899;           /* pink-500 (toned) */

  /* Typography */
  --font-primary: 'Orbitron', monospace;
  --font-secondary: 'Roboto', sans-serif;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;

  /* Shadows & Glows */
  --glow-cyber: 0 0 10px color-mix(in oklab, var(--cyber-blue), transparent 65%);
  --glow-digital: 0 0 10px color-mix(in oklab, var(--digital-green), transparent 65%);
  --glow-matrix: 0 0 10px color-mix(in oklab, var(--matrix-purple), transparent 65%);
  --shadow-quantum: 0 8px 24px rgba(2, 132, 199, 0.25);

  /* Layout */
  --container-max: 1200px;
  --header-height: 64px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-secondary);
  background: radial-gradient(1200px 800px at 20% 0%, #0e1622 0%, var(--quantum-dark) 40%, var(--quantum-darker) 100%);
  color: var(--quantum-white);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  padding-top: var(--header-height);
}

/* Digital Rain Background Effect */
body::before { display: none; }

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--quantum-dark);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(45deg, var(--cyber-blue), var(--matrix-purple));
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(45deg, var(--digital-green), var(--neon-pink));
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  text-shadow: none;
}

h1 { font-size: 2.25rem; letter-spacing: 0.3px; }

h2 { font-size: 1.75rem; color: var(--cyber-blue); }

h3 { font-size: 1.375rem; color: var(--digital-green); }

p {
  margin-bottom: var(--spacing-md);
  color: rgba(255, 255, 255, 0.9);
}

/* Header Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(10, 16, 24, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  z-index: 1000;
  height: var(--header-height);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--spacing-lg);
  position: relative;
}

.logo {
  font-family: var(--font-primary);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--cyber-blue);
  text-decoration: none;
  text-shadow: none;
  transition: color 0.2s ease;
}

.logo:hover { color: var(--digital-green); }

  .logo { display: inline-flex; align-items: center; gap: 8px; }
  .logo-img { height: 32px; width: auto; display: block; }
  .header .btn-primary, .header .btn-secondary { padding: 6px 14px; font-size: 0.9rem; border-width: 2px; border-radius: 9999px; }

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

.nav-item {
  position: relative;
}

.nav-link {
  color: var(--quantum-white);
  text-decoration: none;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 5px;
  transition: color 0.2s ease, background-color 0.2s ease;
  position: relative;
  overflow: hidden;
}

.nav-link:hover { color: var(--cyber-blue); background: rgba(255,255,255,0.04); }

/* Dropdowns */
.dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: rgba(9, 14, 22, 0.98);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 8px;
  min-width: 200px;
  padding: 8px;
  box-shadow: 0 12px 24px rgba(0,0,0,0.35);
}
.dropdown-menu a { display: block; padding: 10px 12px; color: #e5eef7; border-radius: 6px; }
.dropdown-menu a:hover { background: rgba(255,255,255,0.06); color: var(--cyber-blue); }
.dropdown:hover .dropdown-menu, .dropdown.open .dropdown-menu { display: block; }

/* Mobile Menu */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--quantum-white);
  font-size: 1.5rem;
  cursor: pointer;
}

/* CTA Buttons */
.cta-buttons {
  display: flex;
  gap: var(--spacing-md);
}

.btn-primary, .btn-secondary {
  padding: var(--spacing-sm) var(--spacing-lg);
  border: 2px solid;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: transform 0.15s ease, background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  position: relative;
  overflow: hidden;
}

.btn-primary { background: var(--cyber-blue); border-color: var(--cyber-blue); color: #051018; box-shadow: 0 6px 16px rgba(34, 211, 238, 0.25); }
.btn-primary:hover { transform: translateY(-2px); background: var(--cyber-blue-dark); border-color: var(--cyber-blue-dark); }

.btn-secondary { background: transparent; border-color: var(--digital-green); color: var(--digital-green); }
.btn-secondary:hover { background: var(--digital-green); color: #071017; transform: translateY(-2px); }

/* Tertiary text button */
.btn-link { color: var(--cyber-blue); text-decoration: none; font-weight: 600; }
.btn-link:hover { text-decoration: underline; }

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: linear-gradient(135deg, rgba(2, 8, 16, 0.8), rgba(8, 12, 20, 0.9));
  overflow: hidden;
}

.hero::before { content: none; }

@keyframes rotate {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.hero-content {
  text-align: center;
  max-width: 800px;
  padding: var(--spacing-xxl);
}

.hero-title { font-size: 3rem; margin-bottom: var(--spacing-lg); text-shadow: var(--glow-cyber); }

@keyframes glow-pulse { 0% {opacity: 0.9} 100% {opacity: 1} }

.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-xl);
  color: rgba(255, 255, 255, 0.8);
}

.hero-cta {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
}

/* Content Blocks */
.content-block {
  display: flex;
  align-items: center;
  gap: var(--spacing-xxl);
  margin: var(--spacing-xxl) 0;
  padding: var(--spacing-xxl);
  background: rgba(8, 12, 20, 0.7);
  border-radius: 20px;
  border: 1px solid rgba(255,255,255,0.06);
  backdrop-filter: blur(8px);
  position: relative;
  overflow: hidden;
}

.content-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 255, 255, 0.1), transparent);
  transition: left 0.8s;
}

.content-block:hover::before {
  left: 100%;
}

.content-block.horizontal {
  flex-direction: row;
}

.content-block.vertical {
  flex-direction: column;
  text-align: center;
}

.content-block.reverse {
  flex-direction: row-reverse;
}

.content-text {
  flex: 1;
}

.content-image {
  flex: 0 0 300px;
  height: 200px;
  background: linear-gradient(45deg, var(--quantum-dark), var(--quantum-gray));
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyber-blue);
  font-size: 1.2rem;
  border: 2px solid var(--cyber-blue);
  position: relative;
  overflow: hidden;
}

.content-image::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(var(--cyber-blue), var(--matrix-purple), var(--digital-green), var(--cyber-blue));
  animation: spin 4s linear infinite;
  transform: translate(-50%, -50%);
  opacity: 0.1;
}

@keyframes spin {
  0% { transform: translate(-50%, -50%) rotate(0deg); }
  100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Content Grids */
.content-grid {
  display: grid;
  gap: var(--spacing-lg);
  margin: var(--spacing-xxl) 0;
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-item {
  background: rgba(26, 26, 26, 0.9);
  border-radius: 15px;
  padding: var(--spacing-lg);
  border: 1px solid rgba(255,255,255,0.06);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.grid-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--cyber-blue), var(--matrix-purple));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.grid-item:hover::before {
  opacity: 0.1;
}

.grid-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-quantum); border-color: var(--cyber-blue); }

.grid-item img,
.grid-item .placeholder-image {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(45deg, var(--quantum-dark), var(--quantum-gray));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--digital-green);
  border: 1px solid rgba(255,255,255,0.08);
}

/* Container */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-xxl) 0;
}

/* Trust Signals */
.trust-signals {
  background: rgba(12, 16, 24, 0.95);
  padding: var(--spacing-xxl) 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  text-align: center;
}

.trust-item {
  padding: var(--spacing-lg);
}

.trust-number {
  font-family: var(--font-primary);
  font-size: 3rem;
  color: var(--cyber-blue);
  display: block;
  text-shadow: none;
}

.trust-label {
  color: var(--quantum-white);
  font-weight: 500;
}

/* Footer */
.footer {
  background: var(--quantum-darker);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
  color: var(--cyber-blue);
  margin-bottom: var(--spacing-md);
  font-size: 1.2rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: var(--spacing-sm);
}

.footer-section ul li a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section ul li a:hover { color: var(--cyber-blue); }

.footer-bottom {
  border-top: 1px solid var(--quantum-gray);
  padding-top: var(--spacing-lg);
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
}

.payment-methods {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
  margin: var(--spacing-lg) 0;
}

.payment-method {
  width: 60px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--cyber-blue);
  transition: all 0.3s ease;
}

.payment-method:hover { background: rgba(255, 255, 255, 0.15); transform: translateY(-2px); }

/* Hero variants used across subpages */
.hero-left-right, .hero-right-left, .hero-overlay { display: grid; align-items: center; gap: var(--spacing-xxl); min-height: 60vh; padding: var(--spacing-xxl) var(--spacing-lg); grid-template-columns: repeat(auto-fit,minmax(280px,1fr)); }
.hero-right-left .hero-image { order: 2; }
.hero-right-left .hero-content { order: 1; }
.hero-left-right .hero-content { order: 1; }
.hero-left-right .hero-image { order: 2; }
.hero-overlay { position: relative; }
.hero-overlay .hero-background { position: absolute; inset: 0; z-index: -1; overflow: hidden; }
.hero-overlay .hero-background img { width: 100%; height: 100%; object-fit: cover; object-position: center 5%; filter: brightness(0.35) saturate(0.9); }
.hero-overlay .hero-content { max-width: 960px; margin: 0 auto; text-align: center; }
.hero-features, .hero-stats, .vip-stats { display: flex; flex-wrap: wrap; gap: var(--spacing-md); margin: var(--spacing-md) 0; }
.hero-features .feature, .vip-stats .stat { display: flex; align-items: center; gap: 8px; padding: 10px 12px; border: 1px solid rgba(255,255,255,0.08); border-radius: 10px; background: rgba(8,12,20,0.5); }

/* Content patterns on subpages */
.content-blocks { max-width: var(--container-max); margin: 0 auto; padding: var(--spacing-xxl) var(--spacing-lg); display: grid; gap: var(--spacing-xxl); }
.content-block.horizontal { display: grid; grid-template-columns: repeat(auto-fit,minmax(280px,1fr)); align-items: center; gap: var(--spacing-xl); background: rgba(8,12,20,0.6); border: 1px solid rgba(255,255,255,0.06); border-radius: 16px; padding: var(--spacing-xl); }
.content-block.vertical { display: grid; grid-template-columns: 1fr; gap: var(--spacing-md); background: rgba(8,12,20,0.6); border: 1px solid rgba(255,255,255,0.06); border-radius: 16px; padding: var(--spacing-xl); }
.block-image img, .hero-image img { width: 100%; height: auto; border-radius: 12px; border: 1px solid rgba(255,255,255,0.08); }
.block-content h2 { margin-bottom: var(--spacing-sm); }

/* Generic cards and grids for subpages */
.contact-grid, .features-container, .tiers-container, .tools-grid, .testimonials-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(240px,1fr)); gap: var(--spacing-lg); }
.contact-card, .feature-card, .tier-card, .tool-card, .testimonial, .video-card { background: rgba(8,12,20,0.6); border: 1px solid rgba(255,255,255,0.06); border-radius: 12px; padding: var(--spacing-lg); }
.contact-btn, .support-btn, .submit-btn, .step-btn { display: inline-block; padding: 10px 16px; border: 1px solid var(--cyber-blue); color: var(--cyber-blue); border-radius: 10px; text-decoration: none; font-weight: 600; }
.contact-btn:hover, .support-btn:hover, .submit-btn:hover, .step-btn:hover { background: var(--cyber-blue); color: #071017; }
.category-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: var(--spacing-md); }
.tab { padding: 8px 12px; border: 1px solid rgba(255,255,255,0.08); border-radius: 8px; background: rgba(12,16,24,0.6); color: #e5eef7; cursor: pointer; }
.tab.active { color: #071017; background: var(--cyber-blue); border-color: var(--cyber-blue); }
.steps-container { display: grid; grid-template-columns: repeat(auto-fit,minmax(240px,1fr)); gap: var(--spacing-lg); }
.step-card { background: rgba(8,12,20,0.6); border: 1px solid rgba(255,255,255,0.06); border-radius: 12px; padding: var(--spacing-lg); }
.download-buttons { display: flex; gap: var(--spacing-md); flex-wrap: wrap; }
.btn-app { display: inline-flex; align-items: center; justify-content: center; padding: 8px 12px; border: 1px solid rgba(255,255,255,0.08); border-radius: 12px; background: rgba(12,16,24,0.6); }
.btn-app img { height: 40px; }

/* Extras used in some pages */
.jackpot-display { display: flex; gap: var(--spacing-md); flex-wrap: wrap; margin-top: var(--spacing-md); }
.age-verification, .age-verification-section { display: grid; place-items: center; gap: var(--spacing-sm); padding: var(--spacing-lg); border: 1px dashed rgba(255,255,255,0.2); border-radius: 12px; max-width: 640px; margin: var(--spacing-lg) auto; }
.age-badge { display: inline-flex; align-items: center; justify-content: center; width: 48px; height: 48px; border-radius: 50%; background: #ef4444; color: white; font-weight: 800; }

/* Responsive Design */
@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-title { font-size: 2.25rem; }

  .content-block {
    flex-direction: column;
    text-align: center;
  }

  .content-block.reverse {
    flex-direction: column;
  }
}

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

  .mobile-menu-toggle {
    display: block;
  }

  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .hero-title { font-size: 2rem; }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .cta-buttons {
    flex-direction: column;
  }

  .content-image {
    flex: 0 0 200px;
    height: 150px;
  }

  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  h3 {
    font-size: 1.25rem;
  }

/* Header mobile optimization */
@media (max-width: 768px) {
  .header { height: 60px; }
  body { padding-top: 60px; }
  .nav-container {
    padding: 0 var(--spacing-md);
    gap: var(--spacing-sm);
  }
  .logo-img { height: 32px; }

  .header .cta-buttons {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    flex-wrap: nowrap;
    white-space: nowrap;
    flex-shrink: 0;
  }

  .header .btn-primary,
  .header .btn-secondary {
    padding: 8px 16px;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 20px;
    white-space: nowrap;
  }

  .mobile-menu-toggle {
    font-size: 1.5rem;
    padding: 8px;
    margin-left: var(--spacing-sm);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-md);
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-content {
    padding: var(--spacing-lg);
  }

  .content-block,
  .section {
    padding: var(--spacing-lg);
  }
}

/* Animation Classes */
.fade-in {
  animation: fadeIn 1s ease-in;
}

@keyframes fadeIn {
  0% { opacity: 0; transform: translateY(30px); }
  100% { opacity: 1; transform: translateY(0); }
}

.slide-in-left {
  animation: slideInLeft 0.8s ease-out;
}

@keyframes slideInLeft {
  0% { opacity: 0; transform: translateX(-50px); }
  100% { opacity: 1; transform: translateX(0); }
}

.slide-in-right {
  animation: slideInRight 0.8s ease-out;
}

@keyframes slideInRight {
  0% { opacity: 0; transform: translateX(50px); }
  100% { opacity: 1; transform: translateX(0); }
}


/* Quantum Stats Display */
.quantum-stats {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
  flex-wrap: wrap;
}

.quantum-stats .stat {
  background: rgba(0, 255, 255, 0.1);
  border: 1px solid rgba(255,255,255,0.08);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 20px;
  font-size: 0.9rem;
  color: var(--cyber-blue);
  text-shadow: none;
}

.license-quantum .license-badge {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  margin-top: var(--spacing-md);
  background: rgba(0, 255, 65, 0.1);
  color: var(--digital-green);
  border-radius: 15px;
  font-size: 0.8rem;
  text-shadow: var(--glow-digital);
}

.footer-cert {
  margin-top: var(--spacing-sm);
  font-size: 0.8rem;
  color: var(--cyber-blue);
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.d-flex { display: flex; }
.d-none { display: none; }
.justify-center { justify-content: center; }
.align-center { align-items: center; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mt-lg { margin-top: var(--spacing-lg); }
.p-lg { padding: var(--spacing-lg); }

/* Dark mode utilities */
.glow-text {
  text-shadow: 0 0 6px color-mix(in oklab, currentColor, transparent 70%);
}

.quantum-border {
  border: 1px solid var(--cyber-blue);
  border-radius: 10px;
}

.quantum-bg {
  background: rgba(26, 26, 26, 0.9);
  backdrop-filter: blur(8px);
}

/* Focus styles for accessibility */
:focus-visible { outline: 2px solid var(--cyber-blue); outline-offset: 2px; border-radius: 6px; }

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}