/* roulang page: index */
:root {
            --primary: #00F5D4;
            --primary-glow: rgba(0, 245, 212, 0.25);
            --accent: #7B2CBF;
            --bg-main: #0B0E14;
            --bg-card: #181E2B;
            --border-light: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(0, 245, 212, 0.35);
        }

        body {
            background-color: var(--bg-main);
            color: #FFFFFF;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            overflow-x: hidden;
        }

        .cyber-grid {
            background-image: linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                              linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 36px 36px;
        }

        .glow-cyan-btn {
            box-shadow: 0 0 20px rgba(0, 245, 212, 0.35);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .glow-cyan-btn:hover {
            box-shadow: 0 0 30px rgba(0, 245, 212, 0.6);
            transform: translateY(-2px);
        }

        .card-cyber {
            background: #181E2B;
            border: 1px solid var(--border-light);
            transition: all 0.3s ease;
        }
        .card-cyber:hover {
            border-color: var(--border-hover);
            transform: translateY(-3px);
            box-shadow: 0 10px 25px -5px rgba(0, 245, 212, 0.1);
        }

        .text-gradient-cyan {
            background: linear-gradient(135deg, #FFFFFF 20%, #00F5D4 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .text-gradient-purple {
            background: linear-gradient(135deg, #00F5D4 0%, #A855F7 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hide-scrollbar::-webkit-scrollbar {
            display: none;
        }
        .hide-scrollbar {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }