/* roulang page: index */
:root {
      --primary: #0ea5e9;
      --primary-dark: #0284c7;
      --text-main: #0b0f19;
      --text-muted: #475569;
      --border-color: #e2e8f0;
      --bg-light: #f8fafc;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      color: var(--text-main);
      background-color: #ffffff;
      font-feature-settings: "tnum";
      font-variant-numeric: tabular-nums;
    }
    .custom-shadow {
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
    }
    .card-hover {
      transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .card-hover:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
      border-color: #cbd5e1;
    }
    .faq-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
    }
    .faq-item.active .faq-content {
      max-height: 240px;
    }
    .faq-item.active .faq-chevron {
      transform: rotate(180deg);
    }
    .hero-slide {
      display: none;
      opacity: 0;
      transition: opacity 0.5s ease-in-out;
    }
    .hero-slide.active {
      display: grid;
      opacity: 1;
    }