/* roulang page: index */
:root {
            --primary: #0B0F19;
            --accent: #00E599;
            --accent-orange: #FF5A1F;
            --surface: #FFFFFF;
            --bg-muted: #F8FAFC;
            --border-light: #E2E8F0;
            --text-main: #1E293B;
            --text-muted: #64748B;
        }

        body {
            color: var(--text-main);
            background-color: #FFFFFF;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            overflow-x: hidden;
        }

        .hero-mesh {
            background-color: #0B0F19;
            background-image: 
                radial-gradient(at 0% 0%, rgba(0, 229, 153, 0.15) 0px, transparent 50%),
                radial-gradient(at 100% 100%, rgba(255, 90, 31, 0.12) 0px, transparent 50%),
                radial-gradient(at 50% 50%, rgba(18, 24, 38, 0.9) 0px, #0B0F19 100%);
        }

        .track-pattern {
            background-size: 40px 40px;
            background-image: 
                linear-gradient(to right, rgba(226, 232, 240, 0.4) 1px, transparent 1px),
                linear-gradient(to bottom, rgba(226, 232, 240, 0.4) 1px, transparent 1px);
        }

        .dark-track-pattern {
            background-size: 48px 48px;
            background-image: 
                linear-gradient(to right, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
                linear-gradient(to bottom, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
        }

        .btn-neon {
            background-color: var(--accent);
            color: #0B0F19;
            font-weight: 700;
            transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .btn-neon:hover {
            background-color: #00ffaa;
            transform: translateY(-2px);
            box-shadow: 0 10px 25px -5px rgba(0, 229, 153, 0.4);
        }

        .btn-orange {
            background-color: var(--accent-orange);
            color: #FFFFFF;
            font-weight: 700;
            transition: all 0.25s ease;
        }
        .btn-orange:hover {
            background-color: #e04b16;
            transform: translateY(-2px);
            box-shadow: 0 10px 25px -5px rgba(255, 90, 31, 0.35);
        }

        .glass-card {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(226, 232, 240, 0.8);
        }

        .glass-dark-card {
            background: rgba(18, 24, 38, 0.85);
            backdrop-filter: blur(16px);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .neon-border-hover {
            transition: all 0.3s ease;
        }
        .neon-border-hover:hover {
            border-color: var(--accent);
            transform: translateY(-3px);
            box-shadow: 0 12px 30px -8px rgba(0, 229, 153, 0.15);
        }

        /* 隐藏无障碍跳跃导航样式 */
        .sr-only-focusable:focus {
            position: static;
            width: auto;
            height: auto;
            margin: 0;
            padding: 8px 16px;
            background: #00E599;
            color: #0B0F19;
            font-weight: bold;
            z-index: 9999;
        }