/* roulang page: index */
:root {
            --bg-base: #0E131F;
            --bg-card: #161D2F;
            --bg-elevated: #1E273D;
            --color-neon: #00E676;
            --color-fire: #FF5722;
            --color-muted: #94A3B8;
            --border-line: rgba(51, 65, 85, 0.7);
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            background-color: var(--bg-base);
            color: #FFFFFF;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            overflow-x: hidden;
            line-height: 1.6;
        }
        .mono-num {
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
        }
        .card-glow:hover {
            box-shadow: 0 0 25px rgba(0, 230, 118, 0.18);
            transform: translateY(-2px);
            border-color: rgba(0, 230, 118, 0.4);
        }
        .btn-fire {
            background: linear-gradient(135deg, #FF5722 0%, #E64A19 100%);
            box-shadow: 0 4px 15px rgba(255, 87, 34, 0.35);
        }
        .btn-fire:hover {
            box-shadow: 0 6px 20px rgba(255, 87, 34, 0.55);
            transform: translateY(-1px);
        }
        .coupon-mask {
            background: radial-gradient(circle at left, transparent 10px, #1E273D 11px) left,
                        radial-gradient(circle at right, transparent 10px, #1E273D 11px) right;
            background-size: 51% 100%;
            background-repeat: no-repeat;
        }
        .accordion-content {
            transition: max-height 0.3s ease-out, opacity 0.3s ease-out;
            max-height: 0;
            overflow: hidden;
            opacity: 0;
        }
        .accordion-content.open {
            max-height: 400px;
            opacity: 1;
        }
        .badge-live {
            position: relative;
            display: inline-flex;
            align-items: center;
        }
        .badge-live::before {
            content: '';
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: #00E676;
            margin-right: 6px;
            box-shadow: 0 0 8px #00E676;
            animation: pulse-dot 1.6s infinite ease-in-out;
        }
        @keyframes pulse-dot {
            0%, 100% { transform: scale(1); opacity: 1; }
            50% { transform: scale(1.4); opacity: 0.5; }
        }