/* roulang page: index */
:root {
            --primary: #0F2F59;
            --primary-dark: #0A192F;
            --accent: #10B981;
            --text-main: #334155;
            --text-title: #0A192F;
            --bg-subtle: #F8FAFC;
            --border-light: #E2E8F0;
        }
        * {
            box-sizing: border-box;
            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;
            line-height: 1.6;
        }
        .hero-video-bg {
            background-image: linear-gradient(rgba(15, 23, 42, 0.75), rgba(15, 47, 89, 0.85)), url('/assets/images/9748a824abec19ff.jpg');
            background-size: cover;
            background-position: center;
        }
        .transition-base {
            transition: all 0.2s ease-in-out;
        }
        .card-hover:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 24px -6px rgba(15, 23, 42, 0.08);
        }
        .accordion-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
        }
        .accordion-item.active .accordion-content {
            max-height: 300px;
        }
        .accordion-item.active .accordion-icon {
            transform: rotate(180deg);
        }