:root {
      --primary: #1D7BFF;
      --primary-hover: #0A66E4;
      --accent: rgb(52,199,89);
      --accent-hover: #2dbd52;
      --dark-bg: #0B1120;
      --dark-card: rgba(15, 23, 42, 0.8);
      --dark-border: rgba(255, 255, 255, 0.08);
      --text-white: #F8FAFC;
      --text-gray: #94A3B8;
      --light-bg: #F8FAFC;
      --light-border: #E2E8F0;
      --light-text: #334155;
      --light-title: #0F172A;
      --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }

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

    body {
      font-family: var(--font-family);
      background-color: var(--light-bg);
      color: var(--light-text);
      line-height: 1.6;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.3s ease;
    }

    
    .header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      background: rgba(11, 17, 32, 0.85);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      transition: background 0.3s ease;
    }

    .header-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 16px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }

    .logo img {
      display: block;
      height: 40px;
      width: auto;
      max-width: 160px;
      object-fit: contain;
      flex-shrink: 0;
    }

    .logo span {
      display: inline-block;
      font-size: 20px;
      font-weight: 800;
      line-height: 1;
      color: var(--text-white);
      white-space: nowrap;
      letter-spacing: 0.5px;
    }

    .nav-desktop {
      display: flex;
      align-items: center;
      gap: 32px;
    }

    .nav-desktop a {
      color: var(--text-gray);
      font-size: 15px;
      font-weight: 500;
    }

    .nav-desktop a:hover, .nav-desktop a.active {
      color: var(--primary);
    }

    .nav-btn {
      background: var(--accent);
      color: #fff !important;
      padding: 8px 20px;
      border-radius: 8px;
      font-weight: 600;
      font-size: 14px;
      box-shadow: 0 4px 12px rgba(52, 199, 89, 0.2);
    }

    .nav-btn:hover {
      background: var(--accent-hover);
      box-shadow: 0 6px 16px rgba(52, 199, 89, 0.3);
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      color: var(--text-white);
      cursor: pointer;
      padding: 4px;
    }

    
    .drawer {
      position: fixed;
      top: 0;
      left: -280px;
      width: 280px;
      height: 100vh;
      background: var(--dark-bg);
      z-index: 2000;
      box-shadow: 4px 0 24px rgba(0, 0, 0, 0.3);
      transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      display: flex;
      flex-direction: column;
      border-right: 1px solid var(--dark-border);
    }

    .drawer.open {
      left: 0;
    }

    .drawer-header {
      padding: 24px 20px;
      border-bottom: 1px solid var(--dark-border);
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .drawer-close {
      background: none;
      border: none;
      color: var(--text-gray);
      font-size: 24px;
      cursor: pointer;
    }

    .drawer-nav {
      flex: 1;
      padding: 20px;
      overflow-y: auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .drawer-nav a {
      color: var(--text-gray);
      font-size: 16px;
      font-weight: 500;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.02);
    }

    .drawer-nav a:hover, .drawer-nav a.active {
      color: var(--primary);
    }

    .drawer-nav .nav-btn {
      text-align: center;
      margin-top: 10px;
      border-bottom: none;
    }

    .drawer-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100vw;
      height: 100vh;
      background: rgba(0,0,0,0.5);
      z-index: 1500;
      display: none;
    }

    .drawer-overlay.show {
      display: block;
    }

    
    .hero {
      position: relative;
      background-color: var(--dark-bg);
      background-image: radial-gradient(circle at 50% 20%, rgba(29, 123, 255, 0.15), transparent 60%);
      padding: 140px 20px 80px;
      overflow: hidden;
    }

    .hero-container {
      max-width: 1200px;
      margin: 0 auto;
      text-align: center;
      position: relative;
      z-index: 2;
    }

    .hero-tagline {
      display: inline-block;
      background: rgba(29, 123, 255, 0.1);
      border: 1px solid rgba(29, 123, 255, 0.2);
      color: var(--primary);
      padding: 6px 16px;
      border-radius: 50px;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 24px;
      letter-spacing: 1px;
    }

    .hero-title {
      font-size: 48px;
      font-weight: 800;
      color: var(--text-white);
      line-height: 1.2;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title span {
      background: linear-gradient(135deg, #FFF 30%, var(--primary) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 18px;
      color: var(--text-gray);
      max-width: 720px;
      margin: 0 auto 36px;
      font-weight: 400;
    }

    .hero-buttons {
      display: flex;
      justify-content: center;
      gap: 16px;
      margin-bottom: 60px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 14px 32px;
      border-radius: 10px;
      font-weight: 600;
      font-size: 16px;
      transition: all 0.3s ease;
      cursor: pointer;
    }

    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 4px 18px rgba(29, 123, 255, 0.35);
    }

    .btn-primary:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 24px rgba(29, 123, 255, 0.5);
    }

    .btn-secondary {
      background: rgba(255, 255, 255, 0.05);
      color: var(--text-white);
      border: 1px solid rgba(255, 255, 255, 0.1);
    }

    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.1);
      transform: translateY(-2px);
    }

    
    .hero-visual-wrapper {
      position: relative;
      max-width: 900px;
      margin: 0 auto;
      padding: 20px;
    }

    .hero-main-panel {
      background: var(--dark-card);
      border: 1px solid var(--dark-border);
      border-radius: 20px;
      box-shadow: 0 24px 48px rgba(0, 0, 0, 0.5), inset 0 1px 1px rgba(255,255,255,0.1);
      padding: 40px;
      position: relative;
      overflow: hidden;
      z-index: 1;
    }

    .hero-main-panel::before {
      content: '';
      position: absolute;
      top: -150px;
      left: -150px;
      width: 300px;
      height: 300px;
      background: radial-gradient(circle, rgba(29,123,255,0.2) 0%, transparent 70%);
      pointer-events: none;
    }

    .panel-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid var(--dark-border);
      padding-bottom: 20px;
      margin-bottom: 30px;
    }

    .panel-dots {
      display: flex;
      gap: 6px;
    }

    .panel-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: rgba(255,255,255,0.2);
    }

    .panel-dot:nth-child(1) { background: #FF5F56; }
    .panel-dot:nth-child(2) { background: #FFBD2E; }
    .panel-dot:nth-child(3) { background: #27C93F; }

    .panel-title {
      font-size: 14px;
      color: var(--text-gray);
      font-family: monospace;
    }

    .panel-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .panel-metric {
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid rgba(255, 255, 255, 0.04);
      padding: 24px 16px;
      border-radius: 12px;
      text-align: center;
    }

    .panel-metric-num {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-white);
      margin-bottom: 8px;
      letter-spacing: -1px;
    }

    .panel-metric-num.highlight {
      color: var(--accent);
    }

    .panel-metric-label {
      font-size: 13px;
      color: var(--text-gray);
    }

    
    .float-card {
      position: absolute;
      background: rgba(15, 23, 42, 0.9);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 12px;
      padding: 16px 20px;
      display: flex;
      align-items: center;
      gap: 12px;
      box-shadow: 0 12px 24px rgba(0,0,0,0.4);
      z-index: 2;
      backdrop-filter: blur(8px);
      transition: all 0.3s ease;
    }

    .float-card:hover {
      transform: translateY(-4px);
      border-color: var(--primary);
    }

    .float-card-1 { top: 10%; left: -8%; }
    .float-card-2 { top: 50%; left: -12%; }
    .float-card-3 { top: 15%; right: -8%; }
    .float-card-4 { top: 60%; right: -12%; }

    .float-icon {
      width: 40px;
      height: 40px;
      border-radius: 8px;
      background: rgba(29, 123, 255, 0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 18px;
    }

    .float-card-2 .float-icon {
      background: rgba(52, 199, 89, 0.15);
      color: var(--accent);
    }

    .float-info {
      text-align: left;
    }

    .float-title {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-white);
    }

    .float-desc {
      font-size: 11px;
      color: var(--text-gray);
    }

    
    .section-padding {
      padding: 90px 20px;
    }

    .bg-white {
      background: #ffffff;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
    }

    .section-header {
      text-align: center;
      max-width: 650px;
      margin: 0 auto 50px;
    }

    .section-title {
      font-size: 36px;
      font-weight: 800;
      color: var(--light-title);
      margin-bottom: 16px;
    }

    .section-subtitle {
      font-size: 16px;
      color: var(--light-text);
      opacity: 0.8;
    }

    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .feat-card {
      background: #FFFFFF;
      border: 1px solid var(--light-border);
      border-radius: 16px;
      padding: 30px 24px;
      transition: all 0.3s ease;
    }

    .feat-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 12px 30px rgba(0,0,0,0.05);
      border-color: var(--primary);
    }

    .feat-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: rgba(29, 123, 255, 0.08);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 20px;
    }

    .feat-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--light-title);
      margin-bottom: 12px;
    }

    .feat-desc {
      font-size: 14px;
      color: var(--light-text);
      opacity: 0.85;
    }

    
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .article-card {
      background: #FFFFFF;
      border: 1px solid var(--light-border);
      border-radius: 16px;
      overflow: hidden;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .article-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 12px 30px rgba(0,0,0,0.05);
    }

    .article-img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      background-color: #E2E8F0;
    }

    .article-content {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .article-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 12px;
      color: var(--light-text);
      opacity: 0.6;
      margin-bottom: 12px;
    }

    .article-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--light-title);
      margin-bottom: 12px;
      line-height: 1.4;
    }

    .article-summary {
      font-size: 14px;
      color: var(--light-text);
      opacity: 0.8;
      margin-bottom: 20px;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
      flex: 1;
    }

    .article-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 16px;
    }

    .article-tag {
      background: var(--light-bg);
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 11px;
      color: var(--primary);
      font-weight: 500;
    }

    .article-footer {
      border-top: 1px solid var(--light-border);
      padding-top: 16px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .article-link {
      font-weight: 600;
      font-size: 14px;
      color: var(--primary);
    }

    
    .download-cta {
      background: var(--dark-bg);
      background-image: radial-gradient(circle at 10% 90%, rgba(29, 123, 255, 0.1), transparent 50%),
                        radial-gradient(circle at 90% 10%, rgba(52, 199, 89, 0.1), transparent 50%);
      color: #fff;
    }

    .download-container {
      max-width: 900px;
      margin: 0 auto;
      text-align: center;
    }

    .download-title {
      font-size: 36px;
      font-weight: 800;
      margin-bottom: 16px;
    }

    .download-desc {
      color: var(--text-gray);
      margin-bottom: 40px;
      font-size: 16px;
    }

    .download-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
      margin-bottom: 40px;
    }

    .dl-card {
      background: rgba(255,255,255,0.03);
      border: 1px solid rgba(255,255,255,0.06);
      border-radius: 16px;
      padding: 30px;
      text-align: center;
    }

    .dl-icon {
      font-size: 36px;
      color: var(--primary);
      margin-bottom: 16px;
    }

    .dl-card:last-child .dl-icon {
      color: var(--accent);
    }

    .dl-card h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .dl-card p {
      font-size: 14px;
      color: var(--text-gray);
      margin-bottom: 24px;
    }

    
    .footer {
      background: var(--dark-bg);
      color: var(--text-gray);
      border-top: 1px solid var(--dark-border);
      padding: 60px 20px 30px;
    }

    .footer-container {
      max-width: 1200px;
      margin: 0 auto;
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-brand {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.6;
    }

    .footer-title {
      color: var(--text-white);
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 20px;
    }

    .footer-links {
      list-style: none;
    }

    .footer-links li {
      margin-bottom: 12px;
    }

    .footer-links a {
      font-size: 14px;
    }

    .footer-links a:hover {
      color: var(--primary);
    }

    .footer-bottom {
      max-width: 1200px;
      margin: 0 auto;
      border-top: 1px solid var(--dark-border);
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 13px;
    }

    
    @media (max-width: 1024px) {
      .float-card {
        position: static;
        box-shadow: none;
        backdrop-filter: none;
        background: rgba(255,255,255,0.03);
      }

      .hero-visual-wrapper {
        margin-top: 40px;
        display: flex;
        flex-direction: column;
        gap: 16px;
      }

      .hero-main-panel {
        order: -1;
      }

      .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }

      .grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
    }

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

      .menu-toggle {
        display: block;
      }

      .hero-title {
        font-size: 32px;
      }

      .hero-desc {
        font-size: 15px;
      }

      .panel-grid {
        grid-template-columns: 1fr;
      }

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

      .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
      }
    }