:root {
      --primary: rgb(9,132,227);
      --primary-rgb: 9, 132, 227;
      --primary-glow: rgba(29, 123, 255, 0.15);
      --bg-dark: #070b19;
      --bg-card: rgba(15, 23, 42, 0.6);
      --text-light: #f8fafc;
      --text-muted: #94a3b8;
      --border-color: rgba(255, 255, 255, 0.08);
      --max-width: 1200px;
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      background-color: var(--bg-dark);
      color: var(--text-light);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      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: 100;
      background: rgba(7, 11, 25, 0.85);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .header-container {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 20px;
      height: 70px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }
    .logo img {
      height: 40px;
      width: auto;
      max-width: 160px;
      object-fit: contain;
    }
    .logo span {
      font-size: 20px;
      font-weight: 800;
      background: linear-gradient(135deg, #fff 30%, #a5f3fc);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .nav-desktop {
      display: flex;
      align-items: center;
      gap: 30px;
    }
    .nav-desktop a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
    }
    .nav-desktop a:hover {
      color: var(--text-light);
    }
    .nav-btn {
      background: var(--primary);
      padding: 8px 18px;
      border-radius: 6px;
      color: #fff !important;
      font-weight: 600;
      box-shadow: 0 4px 12px var(--primary-glow);
    }
    .nav-btn:hover {
      opacity: 0.9;
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      color: #fff;
      font-size: 24px;
      cursor: pointer;
    }

    
    .drawer-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0,0,0,0.6);
      z-index: 200;
      opacity: 0;
      visibility: hidden;
      transition: all 0.3s ease;
    }
    .drawer {
      position: fixed;
      top: 0;
      left: -280px;
      width: 280px;
      height: 100%;
      background: #0a0f24;
      z-index: 201;
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 30px;
      transition: all 0.3s ease;
      border-right: 1px solid var(--border-color);
    }
    .drawer.active { left: 0; }
    .drawer-overlay.active { opacity: 1; visibility: visible; }
    .drawer-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .close-btn {
      background: none;
      border: none;
      color: var(--text-muted);
      font-size: 24px;
      cursor: pointer;
    }
    .drawer-nav {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .drawer-nav a {
      font-size: 16px;
      color: var(--text-muted);
    }
    .drawer-nav a:hover { color: #fff; }

    
    .hero {
      position: relative;
      padding: 140px 20px 80px;
      background: radial-gradient(circle at 50% 10%, rgba(9, 132, 227, 0.15) 0%, transparent 60%);
      display: flex;
      justify-content: center;
      text-align: center;
    }
    .hero-inner {
      max-width: 900px;
      width: 100%;
      position: relative;
    }
    .hero-tag {
      display: inline-block;
      padding: 6px 14px;
      background: rgba(9, 132, 227, 0.1);
      border: 1px solid rgba(9, 132, 227, 0.2);
      border-radius: 50px;
      color: var(--primary);
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 24px;
    }
    .hero-title {
      font-size: 48px;
      font-weight: 800;
      line-height: 1.2;
      background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 20px;
    }
    .hero-desc {
      font-size: 18px;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0 auto 35px;
    }
    .hero-buttons {
      display: flex;
      justify-content: center;
      gap: 15px;
      margin-bottom: 60px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 28px;
      border-radius: 8px;
      font-weight: 600;
      font-size: 15px;
      transition: all 0.3s;
    }
    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 4px 20px var(--primary-glow);
    }
    .btn-primary:hover { transform: translateY(-2px); opacity: 0.95; }
    .btn-secondary {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-color);
      color: var(--text-light);
    }
    .btn-secondary:hover { background: rgba(255, 255, 255, 0.1); }

    
    .hero-visual-board {
      position: relative;
      margin-top: 40px;
      padding: 0 40px;
    }
    .visual-panel {
      background: rgba(11, 18, 38, 0.8);
      border: 1px solid rgba(255, 255, 255, 0.06);
      border-radius: 16px;
      padding: 30px;
      min-height: 280px;
      box-shadow: 0 20px 50px rgba(0,0,0,0.5);
      position: relative;
      z-index: 2;
    }
    .panel-header {
      display: flex;
      align-items: center;
      gap: 8px;
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 15px;
      margin-bottom: 20px;
    }
    .dot-group .dot {
      display: inline-block;
      width: 10px;
      height: 10px;
      border-radius: 50%;
      margin-right: 5px;
    }
    .dot-group .dot:nth-child(1) { background: #ff5f56; }
    .dot-group .dot:nth-child(2) { background: #ffbd2e; }
    .dot-group .dot:nth-child(3) { background: #27c93f; }
    .panel-title { font-size: 13px; color: var(--text-muted); font-weight: 500; }
    
    .chart-mock {
      height: 160px;
      position: relative;
      background: linear-gradient(transparent 90%, rgba(9, 132, 227, 0.05) 90%),
                  linear-gradient(90deg, transparent 95%, rgba(9, 132, 227, 0.05) 95%);
      background-size: 20px 20px;
      border-radius: 8px;
      border: 1px dashed rgba(255,255,255,0.03);
    }
    .line-trend {
      position: absolute;
      top: 50%;
      left: 5%;
      width: 90%;
      height: 3px;
      background: linear-gradient(90deg, #1D7BFF, #00f2fe);
      transform: translateY(-50%) skewY(-6deg);
    }
    .trend-points .pt {
      position: absolute;
      width: 8px;
      height: 8px;
      background: #00f2fe;
      border-radius: 50%;
      box-shadow: 0 0 10px #00f2fe;
    }

    
    .float-card {
      position: absolute;
      background: rgba(15, 23, 42, 0.95);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 12px;
      padding: 15px;
      display: flex;
      align-items: center;
      gap: 12px;
      text-align: left;
      z-index: 3;
      box-shadow: 0 10px 30px rgba(0,0,0,0.3);
      width: 220px;
    }
    .float-card h4 { font-size: 14px; margin-bottom: 2px; color: #fff; }
    .float-card p { font-size: 12px; color: var(--text-muted); }
    .float-card .fc-icon { font-size: 24px; }
    
    .fc-1 { top: -20px; left: -10px; }
    .fc-2 { top: -20px; right: -10px; }
    .fc-3 { bottom: -20px; left: -10px; }
    .fc-4 { bottom: -20px; right: -10px; }

    
    section.features, section.articles-section, section.brand-intro {
      max-width: var(--max-width);
      margin: 80px auto;
      padding: 0 20px;
    }
    .sect-title {
      font-size: 32px;
      font-weight: 700;
      text-align: center;
      margin-bottom: 12px;
    }
    .sect-subtitle {
      text-align: center;
      color: var(--text-muted);
      margin-bottom: 40px;
    }
    .features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
    }
    .feat-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 30px;
      border-radius: 12px;
      transition: all 0.3s;
    }
    .feat-card:hover {
      transform: translateY(-5px);
      border-color: var(--primary);
    }
    .feat-icon { font-size: 32px; margin-bottom: 15px; }
    .feat-card h3 { font-size: 20px; margin-bottom: 10px; }
    .feat-card p { color: var(--text-muted); font-size: 14px; }

    
    .article-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 24px;
    }
    .article-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .art-img {
      height: 180px;
      background-size: cover;
      background-position: center;
    }
    .art-body {
      padding: 20px;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .art-meta {
      display: flex;
      gap: 15px;
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 10px;
    }
    .art-title { font-size: 18px; margin-bottom: 10px; line-height: 1.4; color: #fff; }
    .art-summary { font-size: 13px; color: var(--text-muted); margin-bottom: 15px; }
    .art-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid var(--border-color);
      padding-top: 15px;
    }
    .art-tag {
      font-size: 11px;
      background: rgba(29, 123, 255, 0.1);
      color: var(--primary);
      padding: 2px 8px;
      border-radius: 4px;
    }
    .art-more { font-size: 13px; color: var(--primary); font-weight: 600; }

    
    footer {
      background: #040710;
      border-top: 1px solid var(--border-color);
      padding: 60px 20px 30px;
      margin-top: 100px;
    }
    .footer-grid {
      max-width: var(--max-width);
      margin: 0 auto 40px;
      display: grid;
      grid-template-columns: 2fr repeat(3, 1fr);
      gap: 40px;
    }
    .footer-brand p { color: var(--text-muted); font-size: 14px; margin-top: 15px; max-width: 300px; }
    .footer-col h4 { font-size: 16px; margin-bottom: 20px; color: #fff; }
    .footer-col ul { list-style: none; }
    .footer-col ul li { margin-bottom: 12px; }
    .footer-col ul li a { color: var(--text-muted); font-size: 14px; }
    .footer-col ul li a:hover { color: #fff; }
    .footer-bottom {
      max-width: var(--max-width);
      margin: 0 auto;
      border-top: 1px solid var(--border-color);
      padding-top: 25px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      color: var(--text-muted);
    }

    @media (max-width: 991px) {
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .nav-desktop { display: none; }
      .menu-toggle { display: block; }
      .hero-title { font-size: 32px; }
      .hero-desc { font-size: 15px; }
      .hero-visual-board { padding: 0; margin-top: 60px; }
      .float-card { position: static; width: 100%; margin-bottom: 15px; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; gap: 15px; text-align: center; }
    }