:root {
      --primary: rgb(14,165,233);
      --primary-hover: #0284C7;
      --bg-dark: #070B19;
      --bg-card: rgba(15, 23, 42, 0.6);
      --bg-card-hover: rgba(15, 23, 42, 0.85);
      --text-main: #F8FAFC;
      --text-muted: #94A3B8;
      --border-color: rgba(255, 255, 255, 0.08);
      --glacier-blue: #38BDF8;
      --silver-white: #E2E8F0;
      --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }

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

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

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      background: rgba(7, 11, 25, 0.8);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      transition: all 0.3s ease;
    }

    .header-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 70px;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    .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: 18px;
      font-weight: 800;
      line-height: 1;
      color: var(--text-main);
      white-space: nowrap;
      letter-spacing: 0.5px;
    }

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

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

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

    .header-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .nav-cta-btn {
      background: var(--primary);
      color: #fff;
      padding: 8px 20px;
      border-radius: 6px;
      font-size: 14px;
      font-weight: 600;
      box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
    }

    .nav-cta-btn:hover {
      background: var(--primary-hover);
      transform: translateY(-1px);
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      flex-direction: column;
      gap: 6px;
      padding: 4px;
    }

    .mobile-menu-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background-color: var(--text-main);
      transition: all 0.3s ease;
    }

    
    .mobile-drawer {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      z-index: 2000;
      visibility: hidden;
      transition: all 0.3s ease;
    }

    .mobile-drawer.active {
      visibility: visible;
    }

    .drawer-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.6);
      backdrop-filter: blur(4px);
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .mobile-drawer.active .drawer-overlay {
      opacity: 1;
    }

    .drawer-content {
      position: absolute;
      top: 0;
      left: -280px;
      width: 280px;
      height: 100%;
      background: #0b1126;
      border-right: 1px solid var(--border-color);
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 32px;
      transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .mobile-drawer.active .drawer-content {
      left: 0;
    }

    .drawer-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .drawer-close {
      background: none;
      border: none;
      color: var(--text-muted);
      font-size: 28px;
      cursor: pointer;
    }

    .drawer-nav {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .drawer-nav a {
      font-size: 16px;
      font-weight: 500;
      color: var(--text-muted);
    }

    .drawer-nav a:hover {
      color: var(--primary);
      padding-left: 4px;
    }

    .drawer-footer {
      margin-top: auto;
      border-top: 1px solid var(--border-color);
      padding-top: 20px;
    }

    .drawer-footer p {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 8px;
    }

    .drawer-phone {
      font-size: 18px;
      font-weight: 700;
      color: var(--primary);
    }

    
    .hero {
      position: relative;
      padding-top: 150px;
      padding-bottom: 100px;
      background: radial-gradient(circle at 50% 30%, rgba(29, 123, 255, 0.15) 0%, transparent 60%);
      overflow: hidden;
    }

    .hero-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
      text-align: center;
    }

    .hero-manifesto {
      max-width: 800px;
      margin: 0 auto 60px auto;
    }

    .hero-tag {
      display: inline-block;
      padding: 6px 16px;
      background: rgba(29, 123, 255, 0.1);
      border: 1px solid rgba(29, 123, 255, 0.3);
      border-radius: 50px;
      font-size: 13px;
      font-weight: 600;
      color: var(--glacier-blue);
      margin-bottom: 24px;
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    .hero-title {
      font-size: 48px;
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -1px;
      margin-bottom: 24px;
      color: var(--text-main);
    }

    .hero-title span.text-glow {
      color: var(--primary);
      text-shadow: 0 0 20px rgba(14, 165, 233, 0.4);
    }

    .hero-subtitle {
      font-size: 18px;
      color: var(--text-muted);
      margin-bottom: 36px;
      line-height: 1.7;
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 28px;
      border-radius: 8px;
      font-size: 16px;
      font-weight: 600;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 4px 20px rgba(14, 165, 233, 0.35);
    }

    .btn-primary:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
    }

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

    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: rgba(255, 255, 255, 0.2);
    }

    
    .hero-visual-panel {
      position: relative;
      max-width: 900px;
      margin: 0 auto;
      margin-top: 40px;
    }

    .main-panel-inner {
      position: relative;
      background: rgba(15, 23, 42, 0.6);
      border: 1px solid rgba(29, 123, 255, 0.15);
      border-radius: 16px;
      padding: 40px;
      box-shadow: 0 30px 60px rgba(0,0,0,0.4);
      backdrop-filter: blur(20px);
    }

    .panel-screen-mockup {
      background: #020617;
      border-radius: 12px;
      border: 1px solid rgba(255, 255, 255, 0.05);
      overflow: hidden;
    }

    .dashboard-preview {
      display: flex;
      flex-direction: column;
      height: 320px;
      text-align: left;
    }

    .dash-header {
      background: rgba(255,255,255,0.02);
      border-bottom: 1px solid var(--border-color);
      padding: 12px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .dash-header .dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
    }

    .dash-header .dot.red { background: #EF4444; }
    .dash-header .dot.yellow { background: #F59E0B; }
    .dash-header .dot.green { background: #10B981; }

    .dash-title {
      font-size: 11px;
      color: var(--text-muted);
      margin-left: 10px;
      font-family: monospace;
    }

    .dash-body {
      flex: 1;
      padding: 24px;
      display: flex;
      gap: 24px;
    }

    .dash-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 20px;
      width: 100%;
    }

    .dash-chart {
      background: linear-gradient(180deg, rgba(29, 123, 255, 0.1) 0%, rgba(29, 123, 255, 0) 100%);
      border: 1px dashed rgba(29, 123, 255, 0.2);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      position: relative;
    }

    .dash-chart::before {
      content: '大发888安全运营节点网络：正常';
      font-size: 13px;
      color: var(--glacier-blue);
      font-weight: 500;
    }

    .dash-stats {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .dash-stat-item {
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid rgba(255,255,255,0.05);
      border-radius: 6px;
      padding: 12px;
    }

    .dash-stat-item h5 {
      font-size: 11px;
      color: var(--text-muted);
      margin-bottom: 4px;
    }

    .dash-stat-item p {
      font-size: 16px;
      font-weight: 700;
      color: var(--primary);
    }

    
    .floating-card {
      position: absolute;
      width: 240px;
      background: rgba(11, 17, 38, 0.85);
      border: 1px solid rgba(29, 123, 255, 0.2);
      backdrop-filter: blur(12px);
      border-radius: 12px;
      padding: 16px;
      display: flex;
      gap: 12px;
      align-items: flex-start;
      text-align: left;
      box-shadow: 0 10px 30px rgba(0,0,0,0.5);
      transition: all 0.3s ease;
    }

    .floating-card:hover {
      transform: translateY(-5px);
      border-color: var(--primary);
      box-shadow: 0 15px 40px rgba(14, 165, 233, 0.2);
    }

    .floating-card .card-icon {
      font-size: 24px;
    }

    .floating-card h4 {
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 4px;
      color: var(--text-main);
    }

    .floating-card p {
      font-size: 11px;
      color: var(--text-muted);
      line-height: 1.4;
    }

    
    .pos-top-left { top: -20px; left: -100px; }
    .pos-top-right { top: -20px; right: -100px; }
    .pos-bottom-left { bottom: -20px; left: -100px; }
    .pos-bottom-right { bottom: -20px; right: -100px; }

    
    .features-section {
      padding: 100px 0;
      border-top: 1px solid var(--border-color);
      background: linear-gradient(180deg, #070B19 0%, #030712 100%);
    }

    .section-header {
      text-align: center;
      max-width: 600px;
      margin: 0 auto 60px auto;
    }

    .section-header h2 {
      font-size: 32px;
      font-weight: 800;
      margin-bottom: 16px;
    }

    .section-header p {
      font-size: 16px;
      color: var(--text-muted);
    }

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

    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 32px;
      transition: all 0.3s ease;
    }

    .feature-card:hover {
      background: var(--bg-card-hover);
      transform: translateY(-5px);
      border-color: rgba(29, 123, 255, 0.3);
    }

    .feature-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 56px;
      height: 56px;
      background: rgba(29, 123, 255, 0.1);
      color: var(--primary);
      border-radius: 10px;
      font-size: 24px;
      margin-bottom: 24px;
    }

    .feature-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    
    .content-section {
      padding: 100px 0;
      border-top: 1px solid var(--border-color);
    }

    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
      margin-top: 40px;
    }

    .article-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
    }

    .article-card:hover {
      transform: translateY(-5px);
      border-color: rgba(29, 123, 255, 0.3);
    }

    .article-image {
      position: relative;
      padding-bottom: 56.25%; 
      overflow: hidden;
      background: #020617;
    }

    .article-image img {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

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

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

    .article-title {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 12px;
      line-height: 1.4;
    }

    .article-summary {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.5;
    }

    .article-link {
      margin-top: auto;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .article-link:hover {
      gap: 10px;
    }

    
    .cta-section {
      padding: 100px 0;
      background: radial-gradient(circle at center, rgba(14, 165, 233, 0.15) 0%, transparent 70%);
      text-align: center;
    }

    .cta-card {
      background: rgba(15, 23, 42, 0.4);
      border: 1px solid rgba(29, 123, 255, 0.2);
      border-radius: 20px;
      padding: 60px 40px;
      backdrop-filter: blur(10px);
      max-width: 900px;
      margin: 0 auto;
    }

    .cta-card h2 {
      font-size: 36px;
      font-weight: 800;
      margin-bottom: 16px;
    }

    .cta-card p {
      font-size: 16px;
      color: var(--text-muted);
      margin-bottom: 32px;
      max-width: 600px;
      margin-left: auto;
      margin-right: auto;
    }

    
    .site-footer {
      background: #030712;
      border-top: 1px solid var(--border-color);
      padding: 80px 0 30px 0;
    }

    .footer-container {
      display: grid;
      grid-template-columns: 1.5fr repeat(3, 1fr);
      gap: 40px;
      margin-bottom: 60px;
    }

    .footer-brand p {
      font-size: 14px;
      color: var(--text-muted);
      margin-top: 16px;
      line-height: 1.6;
    }

    .footer-link-group h4 {
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 20px;
      color: var(--text-main);
    }

    .footer-link-group ul {
      list-style: none;
    }

    .footer-link-group ul li {
      margin-bottom: 12px;
    }

    .footer-link-group ul li a {
      font-size: 13px;
      color: var(--text-muted);
    }

    .footer-link-group ul li a:hover {
      color: var(--primary);
    }

    .footer-bottom {
      border-top: 1px solid var(--border-color);
      padding-top: 30px;
      text-align: center;
      font-size: 12px;
      color: var(--text-muted);
    }

    
    @media (max-width: 1200px) {
      .pos-top-left { left: 10px; }
      .pos-top-right { right: 10px; }
      .pos-bottom-left { left: 10px; }
      .pos-bottom-right { right: 10px; }
    }

    @media (max-width: 992px) {
      .hero-title { font-size: 38px; }
      .floating-card { position: static; width: 100%; margin-top: 16px; }
      .main-panel-inner { padding: 20px; }
      .panel-screen-mockup { display: none; }
      .features-grid, .news-grid { grid-template-columns: 1fr 1fr; }
      .footer-container { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 768px) {
      .desktop-nav, .header-actions .nav-cta-btn { display: none; }
      .mobile-menu-toggle { display: flex; }
      .features-grid, .news-grid { grid-template-columns: 1fr; }
      .footer-container { grid-template-columns: 1fr; }
      .hero-buttons { flex-direction: column; }
    }