/* roulang page: index */
:root {
      --primary: #059669;
      --primary-hover: #047857;
      --accent: #0284c7;
      --bg-light: #f8fafc;
      --text-main: #0f172a;
      --text-muted: #64748b;
      --border-color: #e2e8f0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: 'Noto Sans SC', sans-serif;
      color: var(--text-main);
      background-color: #ffffff;
      overflow-x: hidden;
    }
    .hero-bg-overlay {
      background: linear-gradient(135deg, rgba(7, 13, 23, 0.94) 0%, rgba(11, 28, 48, 0.88) 100%), url('/assets/images/47f64907190ba360.jpg') center/cover no-repeat;
    }
    .deep-contrast-bg {
      background: radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.15) 0%, rgba(7, 13, 23, 1) 70%), url('/assets/images/9527973fa3638f0d.jpg') center/cover fixed;
    }
    .feature-card-hover {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .feature-card-hover:hover {
      transform: translateY(-5px);
      box-shadow: 0 20px 25px -5px rgba(5, 150, 105, 0.1), 0 8px 10px -6px rgba(5, 150, 105, 0.1);
    }
    .badge-glow {
      box-shadow: 0 0 15px rgba(16, 185, 129, 0.35);
    }
    .glass-effect {
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
    }
    .glass-dark {
      background: rgba(15, 23, 42, 0.75);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
    }