/* roulang page: index */
:root {
      --primary: #2563EB;
      --primary-hover: #1D4ED8;
      --bg-light: #F8FAFC;
      --text-main: #0F172A;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
    }
    html {
      scroll-behavior: smooth;
    }
    .hero-skew-box {
      transform: perspective(1000px) rotateY(-4deg) rotateX(2deg);
      box-shadow: -20px 25px 50px -12px rgba(15, 23, 42, 0.25);
    }
    .custom-card {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .custom-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 24px -6px rgba(15, 23, 42, 0.08);
    }
    .faq-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
    }
    .faq-item.active .faq-content {
      max-height: 200px;
    }
    .faq-item.active .faq-icon {
      transform: rotate(180deg);
    }