/* roulang page: index */
:root {
            --primary: #10B981;
            --primary-dark: #059669;
            --accent: #FF6B35;
            --bg-dark: #0B0F19;
            --card-dark: #0F172A;
            --border-dark: #1E293B;
            --text-main: #0F172A;
            --text-muted: #64748B;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: #1E293B;
            background-color: #F8FAFC;
        }

        .gold-gradient-text {
            background: linear-gradient(135deg, #FDE68A 0%, #F59E0B 50%, #D97706 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .gold-border-glow {
            border: 1px solid rgba(245, 158, 11, 0.35);
            box-shadow: 0 0 20px rgba(245, 158, 11, 0.1);
        }

        .glass-card {
            background: rgba(15, 23, 42, 0.75);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .hero-bg {
            background: linear-gradient(rgba(11, 15, 25, 0.88), rgba(11, 15, 25, 0.94)), url('/assets/images/d800bd597018ddd1.webp') center/cover no-repeat;
        }

        .showcase-bg {
            background: linear-gradient(rgba(15, 23, 42, 0.92), rgba(11, 15, 25, 0.96)), url('/assets/images/149e669374cf9a14.jpg') center/cover no-repeat;
        }

        .accordion-content {
            transition: max-height 0.3s ease-out, opacity 0.3s ease-out;
            max-height: 0;
            opacity: 0;
            overflow: hidden;
        }

        .accordion-item.active .accordion-content {
            max-height: 240px;
            opacity: 1;
        }

        .accordion-item.active .accordion-icon {
            transform: rotate(180deg);
        }