* { margin: 0; padding: 0; box-sizing: border-box; }
    :root {
      --primary: #00d4ff;
      --secondary: #ff006e;
      --accent: #8338ec;
      --text: #e8e8f0;
      --text-dark: #0a0e27;
      --bg: #0a0e27;
      --bg-card: #141829;
      --border: rgba(0, 212, 255, 0.15);
      --shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
      --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.7);
    }
    [data-theme="light"] {
      --text: #0a0e27;
      --text-dark: #e8e8f0;
      --bg: #f5f7fa;
      --bg-card: #ffffff;
      --border: rgba(0, 212, 255, 0.2);
      --shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
      --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.15);
    }
    html { scroll-behavior: smooth; }
    body {
      font-family: 'Segoe UI', 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.6;
      overflow-x: hidden;
    }
    .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
    .section { padding: 80px 0; position: relative; }
    .section-title { font-size: 2.5rem; font-weight: 800; margin-bottom: 20px; background: linear-gradient(135deg, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .section-subtitle { font-size: 1.1rem; color: rgba(232, 232, 240, 0.7); margin-bottom: 40px; }
    .badge { display: inline-block; background: rgba(0, 212, 255, 0.15); color: var(--primary); padding: 8px 16px; border-radius: 20px; font-size: 0.9rem; font-weight: 600; border: 1px solid var(--border); }
    .text-center { text-align: center; }
    
    /* Header */
    #site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      height: 70px;
      background: rgba(10, 14, 39, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border);
      z-index: 1000;
      display: flex;
      align-items: center;
      transition: box-shadow 0.3s ease;
    }
    [data-theme="light"] #site-header {
      background: rgba(245, 247, 250, 0.95);
    }
    .header-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
      height: 100%;
      padding: 0 20px;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.3rem;
      font-weight: 800;
      text-decoration: none;
      color: var(--text);
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .logo svg { width: 32px; height: 32px; }
    .nav-menu {
      display: flex;
      gap: 30px;
      list-style: none;
      align-items: center;
    }
    .nav-menu a {
      color: var(--text);
      text-decoration: none;
      font-weight: 500;
      position: relative;
      transition: color 0.3s ease;
    }
    .nav-menu a:hover, .nav-menu a.active {
      color: var(--primary);
    }
    .nav-menu a.active::after {
      content: '';
      position: absolute;
      bottom: -5px;
      left: 0;
      right: 0;
      height: 2px;
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      border-radius: 1px;
    }
    .header-actions {
      display: flex;
      gap: 15px;
      align-items: center;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 20px;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      font-weight: 600;
      transition: all 0.3s ease;
      text-decoration: none;
      font-size: 0.95rem;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: white;
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 25px rgba(0, 212, 255, 0.4);
    }
    .btn-secondary {
      background: transparent;
      color: var(--text);
      border: 1px solid var(--border);
    }
    .btn-secondary:hover {
      background: rgba(0, 212, 255, 0.1);
      border-color: var(--primary);
    }
    .icon-btn {
      width: 40px;
      height: 40px;
      border-radius: 8px;
      background: transparent;
      border: none;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text);
      transition: all 0.3s ease;
    }
    .icon-btn:hover {
      background: rgba(0, 212, 255, 0.1);
      color: var(--primary);
    }
    #menu-btn { display: none; }
    
    /* Hero Section */
    .hero {
      margin-top: 70px;
      min-height: calc(100vh - 70px);
      display: flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, rgba(0, 212, 255, 0.05), rgba(255, 0, 110, 0.05));
      position: relative;
      overflow: hidden;
    }
    .hero::before {
      content: '';
      position: absolute;
      width: 400px;
      height: 400px;
      background: radial-gradient(circle, rgba(0, 212, 255, 0.15), transparent);
      border-radius: 50%;
      top: -100px;
      right: -100px;
      animation: float 6s ease-in-out infinite;
    }
    .hero::after {
      content: '';
      position: absolute;
      width: 300px;
      height: 300px;
      background: radial-gradient(circle, rgba(255, 0, 110, 0.15), transparent);
      border-radius: 50%;
      bottom: -50px;
      left: -50px;
      animation: float 8s ease-in-out infinite reverse;
    }
    @keyframes float {
      0%, 100% { transform: translateY(0px); }
      50% { transform: translateY(-30px); }
    }
    .hero-content {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 700px;
    }
    .hero h1 {
      font-size: 3.5rem;
      font-weight: 800;
      margin-bottom: 20px;
      background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .hero p {
      font-size: 1.3rem;
      color: rgba(232, 232, 240, 0.8);
      margin-bottom: 30px;
      line-height: 1.8;
    }
    .hero-buttons {
      display: flex;
      gap: 20px;
      justify-content: center;
      flex-wrap: wrap;
    }
    
    /* Breadcrumb */
    .breadcrumb {
      display: flex;
      gap: 8px;
      align-items: center;
      font-size: 0.9rem;
      color: rgba(232, 232, 240, 0.6);
      margin-bottom: 30px;
      flex-wrap: wrap;
    }
    .breadcrumb a {
      color: var(--primary);
      text-decoration: none;
      transition: color 0.3s ease;
    }
    .breadcrumb a:hover {
      color: var(--secondary);
    }
    
    /* Cards */
    .card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 30px;
      backdrop-filter: blur(10px);
      transition: all 0.3s ease;
    }
    .card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-lg);
      transform: translateY(-5px);
    }
    
    /* Grid */
    .grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
    .grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; }
    .grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; }
    
    /* Animations */
    .fade-in { opacity: 0; transform: translateY(30px); }
    .fade-in-left { opacity: 0; transform: translateX(-30px); }
    .fade-in-right { opacity: 0; transform: translateX(30px); }
    .fade-in.visible, .fade-in-left.visible, .fade-in-right.visible {
      opacity: 1;
      transform: translate(0);
      transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }
    .delay-1 { transition-delay: 0.1s; }
    .delay-2 { transition-delay: 0.2s; }
    .delay-3 { transition-delay: 0.3s; }
    .delay-4 { transition-delay: 0.4s; }
    
    /* FAQ */
    .faq-item {
      border: 1px solid var(--border);
      border-radius: 8px;
      overflow: hidden;
      margin-bottom: 15px;
      transition: all 0.3s ease;
    }
    .faq-q {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px;
      background: var(--bg-card);
      cursor: pointer;
      user-select: none;
      font-weight: 600;
      transition: all 0.3s ease;
    }
    .faq-q:hover {
      background: rgba(0, 212, 255, 0.05);
      color: var(--primary);
    }
    .faq-item.open .faq-q {
      background: rgba(0, 212, 255, 0.1);
      color: var(--primary);
    }
    .faq-item.open .faq-q svg {
      transform: rotate(180deg);
    }
    .faq-a {
      display: none;
      padding: 20px;
      background: rgba(0, 212, 255, 0.02);
      border-top: 1px solid var(--border);
      line-height: 1.8;
    }
    .faq-item.open .faq-a {
      display: block;
      animation: slideDown 0.3s ease;
    }
    @keyframes slideDown {
      from { opacity: 0; max-height: 0; }
      to { opacity: 1; max-height: 500px; }
    }
    
    /* Contact Form */
    .contact-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: start;
    }
    .contact-info h2 {
      font-size: 1.8rem;
      margin-bottom: 20px;
    }
    .contact-items {
      display: grid;
      gap: 25px;
      margin: 30px 0;
    }
    .contact-item {
      display: flex;
      gap: 20px;
    }
    .contact-icon {
      width: 50px;
      height: 50px;
      background: rgba(0, 212, 255, 0.1);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      flex-shrink: 0;
    }
    .contact-text h4 {
      margin-bottom: 5px;
      color: var(--primary);
    }
    .contact-text p {
      color: rgba(232, 232, 240, 0.7);
      font-size: 0.95rem;
    }
    .qr-section {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
      margin-top: 40px;
    }
    .qr-item {
      text-align: center;
    }
    .qr-item svg {
      width: 120px;
      height: 120px;
      margin-bottom: 15px;
    }
    .qr-item p {
      font-size: 0.9rem;
      color: rgba(232, 232, 240, 0.7);
    }
    
    /* Form */
    .contact-form {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 40px;
      backdrop-filter: blur(10px);
    }
    .contact-form h3 {
      font-size: 1.5rem;
    }
    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .form-group {
      margin-bottom: 20px;
    }
    .form-group label {
      display: block;
      margin-bottom: 8px;
      font-weight: 600;
      color: var(--text);
    }
    .form-group input,
    .form-group textarea,
    .form-group select {
      width: 100%;
      padding: 12px 15px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border);
      border-radius: 8px;
      color: var(--text);
      font-family: inherit;
      font-size: 0.95rem;
      transition: all 0.3s ease;
    }
    .form-group input:focus,
    .form-group textarea:focus,
    .form-group select:focus {
      outline: none;
      background: rgba(255, 255, 255, 0.1);
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
    }
    .form-group textarea {
      resize: vertical;
      min-height: 120px;
    }
    
    /* Team */
    .team-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 30px;
    }
    .team-card {
      text-align: center;
    }
    .team-avatar {
      width: 120px;
      height: 120px;
      margin: 0 auto 20px;
      border-radius: 50%;
      overflow: hidden;
    }
    .team-avatar svg {
      width: 100%;
      height: 100%;
    }
    .team-card h4 {
      font-size: 1.2rem;
      margin-bottom: 8px;
    }
    .role {
      color: var(--primary);
      font-weight: 600;
      margin-bottom: 15px;
      font-size: 0.95rem;
    }
    .team-card p {
      color: rgba(232, 232, 240, 0.7);
      font-size: 0.9rem;
      line-height: 1.6;
    }
    
    /* Updates */
    .updates-list {
      display: grid;
      gap: 30px;
    }
    .update-item {
      display: grid;
      grid-template-columns: 120px 1fr;
      gap: 30px;
      align-items: start;
    }
    .update-date {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      border-radius: 8px;
      padding: 20px;
      text-align: center;
      color: white;
      height: fit-content;
    }
    .update-date .day {
      font-size: 1.8rem;
      font-weight: 700;
    }
    .update-date .month {
      font-size: 0.8rem;
      opacity: 0.9;
    }
    .update-content h4 {
      margin-bottom: 10px;
      color: var(--primary);
    }
    .update-content p {
      color: rgba(232, 232, 240, 0.7);
      margin-bottom: 15px;
      line-height: 1.7;
    }
    .update-tags {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
    }
    .update-tag {
      display: inline-block;
      background: rgba(0, 212, 255, 0.1);
      color: var(--primary);
      padding: 5px 12px;
      border-radius: 20px;
      font-size: 0.8rem;
      font-weight: 600;
    }
    
    /* Legal */
    .legal-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 30px;
    }
    .legal-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 30px;
      backdrop-filter: blur(10px);
    }
    .legal-card h4 {
      color: var(--primary);
      margin-bottom: 15px;
      font-size: 1.1rem;
    }
    .legal-card p {
      color: rgba(232, 232, 240, 0.7);
      font-size: 0.9rem;
      line-height: 1.7;
    }
    
    /* Footer */
    #footer {
      background: var(--bg-card);
      border-top: 1px solid var(--border);
      padding: 60px 0 20px;
      margin-top: 80px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand p {
      color: rgba(232, 232, 240, 0.7);
      margin: 15px 0;
      line-height: 1.6;
    }
    .footer-social {
      display: flex;
      gap: 10px;
      margin-top: 20px;
    }
    .social-btn {
      width: 40px;
      height: 40px;
      border-radius: 8px;
      background: rgba(0, 212, 255, 0.1);
      border: none;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      transition: all 0.3s ease;
    }
    .social-btn:hover {
      background: var(--primary);
      color: white;
      transform: translateY(-3px);
    }
    .footer-col h4 {
      margin-bottom: 20px;
      color: var(--primary);
    }
    .footer-col ul {
      list-style: none;
    }
    .footer-col li {
      margin-bottom: 12px;
    }
    .footer-col a {
      color: rgba(232, 232, 240, 0.7);
      text-decoration: none;
      transition: color 0.3s ease;
    }
    .footer-col a:hover {
      color: var(--primary);
    }
    .footer-links {
      border-top: 1px solid var(--border);
      padding-top: 30px;
      margin-bottom: 30px;
    }
    .footer-links h5 {
      margin-bottom: 15px;
      color: var(--primary);
      font-size: 0.95rem;
    }
    .footer-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 15px;
    }
    .footer-links-list a {
      color: rgba(232, 232, 240, 0.7);
      text-decoration: none;
      font-size: 0.9rem;
      transition: color 0.3s ease;
    }
    .footer-links-list a:hover {
      color: var(--primary);
    }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-top: 20px;
      border-top: 1px solid var(--border);
      font-size: 0.85rem;
      color: rgba(232, 232, 240, 0.6);
      flex-wrap: wrap;
      gap: 20px;
    }
    .footer-bottom-left, .footer-bottom-right {
      display: flex;
      gap: 15px;
      flex-wrap: wrap;
      align-items: center;
    }
    .footer-bottom a {
      color: rgba(232, 232, 240, 0.6);
      text-decoration: none;
      transition: color 0.3s ease;
    }
    .footer-bottom a:hover {
      color: var(--primary);
    }
    .icp {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
    }
    
    /* Back to Top */
    #back-top {
      position: fixed;
      bottom: 30px;
      right: 30px;
      width: 50px;
      height: 50px;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      border: none;
      border-radius: 50%;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      opacity: 0;
      visibility: hidden;
      transition: all 0.3s ease;
      z-index: 999;
      box-shadow: var(--shadow-lg);
    }
    #back-top.show {
      opacity: 1;
      visibility: visible;
    }
    #back-top:hover {
      transform: translateY(-5px);
      box-shadow: 0 15px 40px rgba(0, 212, 255, 0.4);
    }
    
    /* Responsive */
    @media (max-width: 768px) {
      .nav-menu { display: none; }
      #menu-btn { display: flex; }
      .nav-menu.open { display: flex; position: absolute; top: 70px; left: 0; right: 0; flex-direction: column; background: var(--bg-card); border-bottom: 1px solid var(--border); padding: 20px; gap: 15px; }
      .hero h1 { font-size: 2.2rem; }
      .hero p { font-size: 1rem; }
      .hero-buttons { flex-direction: column; }
      .contact-wrap { grid-template-columns: 1fr; }
      .contact-form { padding: 30px 20px; }
      .form-row { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; text-align: center; }
      .update-item { grid-template-columns: 1fr; }
      .qr-section { grid-template-columns: 1fr; }
      #back-top { width: 45px; height: 45px; bottom: 20px; right: 20px; }
    }