:root {
      --primary-color: rgb(52,168,83);
      --tech-blue: #1d7bff;
      --deep-ink: #060f1e;
      --slate-50: #f8fafc;
      --slate-100: #f1f5f9;
      --slate-800: #1e293b;
      --slate-900: #0f172a;
      --text-dark: #1e293b;
      --text-muted: #64748b;
      --white: #ffffff;
      --transition: all 0.3s ease;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
      color: var(--text-dark);
      background-color: var(--slate-50);
      line-height: 1.6;
    }
    a {
      text-decoration: none;
      color: inherit;
    }

    
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 70px;
      background: rgba(6, 15, 30, 0.9);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      z-index: 1000;
      transition: var(--transition);
    }
    .header-container {
      max-width: 1200px;
      margin: 0 auto;
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 20px;
    }
    .logo {
      display: inline-flex;
      align-items: center;
      gap: 12px;
    }
    .logo img {
      display: block;
      height: 38px;
      width: auto;
      max-width: 160px;
      object-fit: contain;
      flex-shrink: 0;
    }
    .logo span {
      display: inline-block;
      font-size: 18px;
      font-weight: 800;
      line-height: 1;
      color: var(--white);
      white-space: nowrap;
    }
    .desktop-nav {
      display: flex;
      gap: 24px;
    }
    .desktop-nav a {
      color: rgba(255, 255, 255, 0.8);
      font-size: 15px;
      font-weight: 500;
      transition: var(--transition);
    }
    .desktop-nav a:hover {
      color: var(--tech-blue);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 15px;
    }
    .nav-btn-download {
      background: var(--primary-color);
      color: var(--white);
      padding: 8px 18px;
      border-radius: 6px;
      font-weight: 600;
      font-size: 14px;
      transition: var(--transition);
    }
    .nav-btn-download:hover {
      opacity: 0.9;
      transform: translateY(-1px);
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
    }
    .menu-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background-color: var(--white);
      transition: var(--transition);
    }

    
    .drawer-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.6);
      z-index: 2000;
      opacity: 0;
      visibility: hidden;
      transition: var(--transition);
    }
    .drawer-overlay.active {
      opacity: 1;
      visibility: visible;
    }
    .drawer-nav {
      position: fixed;
      top: 0;
      left: -280px;
      width: 280px;
      height: 100%;
      background: var(--slate-900);
      z-index: 2001;
      display: flex;
      flex-direction: column;
      padding: 20px;
      transition: var(--transition);
    }
    .drawer-nav.active {
      left: 0;
    }
    .drawer-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 40px;
    }
    .drawer-close {
      background: none;
      border: none;
      color: var(--white);
      font-size: 28px;
      cursor: pointer;
    }
    .drawer-menu {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .drawer-menu a {
      color: rgba(255, 255, 255, 0.8);
      font-size: 16px;
      font-weight: 500;
      padding-bottom: 8px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    .drawer-menu a:hover {
      color: var(--tech-blue);
    }
    .drawer-footer {
      margin-top: auto;
      color: var(--text-muted);
      font-size: 12px;
    }

    
    .inner-banner {
      background: radial-gradient(circle at 50% 50%, #15325b 0%, var(--deep-ink) 100%);
      padding: 130px 20px 60px 20px;
      color: var(--white);
      text-align: center;
    }
    .inner-banner h1 {
      font-size: 36px;
      font-weight: 800;
      margin-bottom: 15px;
    }

    
    .about-section {
      max-width: 900px;
      margin: 80px auto;
      padding: 0 20px;
    }
    .about-section h2 {
      font-size: 28px;
      color: var(--slate-900);
      margin-bottom: 25px;
      font-weight: 800;
      border-bottom: 2px solid var(--primary-color);
      padding-bottom: 10px;
    }
    .about-section p {
      font-size: 15px;
      color: var(--slate-800);
      line-height: 1.8;
      margin-bottom: 20px;
    }
    .values-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin: 40px 0;
    }
    .value-box {
      background: var(--white);
      border: 1px solid var(--slate-100);
      padding: 24px;
      border-radius: 8px;
      box-shadow: 0 4px 10px rgba(0,0,0,0.01);
      text-align: center;
    }
    .value-box h3 {
      font-size: 18px;
      color: var(--slate-800);
      margin-bottom: 12px;
    }
    .value-box p {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 0;
    }

    
    .timeline {
      position: relative;
      margin: 50px 0;
      padding-left: 30px;
      border-left: 2px solid var(--slate-100);
    }
    .timeline-item {
      position: relative;
      margin-bottom: 30px;
    }
    .timeline-item::before {
      content: '';
      position: absolute;
      left: -37px;
      top: 5px;
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background: var(--primary-color);
      border: 2px solid var(--white);
    }
    .timeline-year {
      font-weight: bold;
      color: var(--primary-color);
      font-size: 16px;
      margin-bottom: 5px;
    }

    
    .site-footer {
      background: #0b111e;
      color: rgba(255,255,255,0.7);
      padding: 80px 20px 30px 20px;
      border-top: 1px solid rgba(255,255,255,0.05);
    }
    .footer-container {
      max-width: 1200px;
      margin: 0 auto;
      display: grid;
      grid-template-columns: 2fr repeat(2, 1fr) 1.5fr;
      gap: 40px;
      margin-bottom: 60px;
    }
    .footer-brand {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .footer-brand .logo span {
      color: var(--white);
    }
    .brand-desc {
      font-size: 13px;
      line-height: 1.6;
      color: #94a3b8;
    }
    .footer-links h4, .footer-contact h4 {
      color: var(--white);
      font-size: 16px;
      margin-bottom: 20px;
      font-weight: 600;
    }
    .footer-links ul {
      list-style: none;
    }
    .footer-links ul li {
      margin-bottom: 12px;
    }
    .footer-links ul li a {
      font-size: 14px;
      transition: var(--transition);
    }
    .footer-links ul li a:hover {
      color: var(--primary-color);
    }
    .footer-contact p {
      font-size: 14px;
      margin-bottom: 12px;
    }
    .social-icons {
      margin-top: 15px;
    }
    .social-icon {
      display: inline-block;
      padding: 6px 14px;
      background: rgba(255,255,255,0.05);
      border-radius: 4px;
      font-size: 13px;
      color: var(--white);
      transition: var(--transition);
    }
    .social-icon:hover {
      background: var(--primary-color);
    }
    .footer-bottom {
      max-width: 1200px;
      margin: 0 auto;
      border-top: 1px solid rgba(255,255,255,0.05);
      padding-top: 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      color: #64748b;
    }

    @media (max-width: 768px) {
      .desktop-nav, .nav-btn-download {
        display: none;
      }
      .menu-toggle {
        display: flex;
      }
      .values-grid {
        grid-template-columns: 1fr;
      }
      .footer-container {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
      }
    }