/* roulang page: index */
:root {
            --primary: #0F3E3A;
            --primary-light: #0D766E;
            --accent: #4F46E5;
            --emerald: #10B981;
            --surface: #F8FAFC;
            --dark: #061E1C;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: #1E293B;
            background-color: #FFFFFF;
        }
        .bio-card-shadow {
            box-shadow: 0 4px 20px -2px rgba(15, 62, 58, 0.06);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .bio-card-shadow:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 28px -4px rgba(15, 62, 58, 0.14);
        }
        .hero-pattern {
            background-image: linear-gradient(135deg, rgba(6, 30, 28, 0.94) 0%, rgba(15, 62, 58, 0.88) 100%), url('/assets/images/ba1388e941ef058a.webp');
            background-size: cover;
            background-position: center;
        }
        .accordion-content {
            transition: max-height 0.35s ease-out, opacity 0.25s ease;
            max-height: 0;
            overflow: hidden;
            opacity: 0;
        }
        .accordion-content.active {
            max-height: 240px;
            opacity: 1;
        }