/* roulang page: index */
:root {
      --primary: #1e40af;
      --accent: #3b82f6;
      --highlight: #0ea5e9;
      --bg-light: #f8fafc;
      --text-main: #0f172a;
      --text-muted: #475569;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      color: var(--text-main);
      background-color: #ffffff;
      overflow-x: hidden;
    }
    .custom-card {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .custom-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
    }
    .accordion-content {
      transition: max-height 0.35s ease-out, opacity 0.3s ease-out;
      max-height: 0;
      opacity: 0;
      overflow: hidden;
    }
    .accordion-content.active {
      max-height: 300px;
      opacity: 1;
    }
    .floating-cta-bar {
      transform: translateY(120%);
      transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .floating-cta-bar.visible {
      transform: translateY(0);
    }