/* roulang page: index */
:root {
            --color-pitch: #0B0E14;
            --color-graphite: #161B26;
            --color-green: #00D26A;
            --color-orange: #FF5A1F;
            --color-gold: #D4AF37;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }
        body {
            font-family: var(--font-stack);
            background-color: #0B0E14;
            color: #F8FAFC;
            overflow-x: hidden;
            line-height: 1.6;
        }
        .gold-badge-glow {
            box-shadow: 0 0 25px rgba(212, 175, 55, 0.25);
            border: 1px solid rgba(212, 175, 55, 0.4);
        }
        .green-border-glow:hover {
            border-color: #00D26A;
            box-shadow: 0 10px 25px -5px rgba(0, 210, 106, 0.15);
        }
        .smooth-scroll {
            scroll-behavior: smooth;
        }
        .accordion-content {
            transition: max-height 0.3s ease-out, opacity 0.3s ease-out;
            max-height: 0;
            opacity: 0;
            overflow: hidden;
        }
        .accordion-content.open {
            max-height: 250px;
            opacity: 1;
        }