/* roulang page: index */
:root {
            --bg-deep: #060B18;
            --bg-card: rgba(15, 23, 42, 0.72);
            --border-glow: rgba(0, 210, 255, 0.25);
            --primary-cyan: #00D2FF;
            --primary-blue: #0E78F9;
            --accent-green: #00FFA3;
            --text-main: #F1F5F9;
            --text-muted: #94A3B8;
        }

        body {
            background-color: var(--bg-deep);
            background-image: 
                radial-gradient(at 0% 0%, rgba(14, 120, 249, 0.15) 0px, transparent 50%),
                radial-gradient(at 100% 100%, rgba(0, 210, 255, 0.1) 0px, transparent 50%),
                radial-gradient(at 50% 50%, rgba(13, 25, 51, 0.8) 0px, transparent 100%);
            color: var(--text-main);
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            overflow-x: hidden;
        }

        .glass-panel {
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .glass-panel:hover {
            border-color: rgba(0, 210, 255, 0.4);
            box-shadow: 0 0 25px rgba(0, 210, 255, 0.15);
        }

        .glow-btn {
            background: linear-gradient(135deg, #00D2FF 0%, #0E78F9 100%);
            box-shadow: 0 4px 20px rgba(0, 210, 255, 0.35);
            transition: all 0.25s ease-in-out;
        }

        .glow-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 28px rgba(0, 210, 255, 0.55);
        }

        .text-glow {
            text-shadow: 0 0 20px rgba(0, 210, 255, 0.4);
        }

        .gradient-text {
            background: linear-gradient(135deg, #FFFFFF 20%, #00D2FF 80%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .accordion-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease-out;
        }

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

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

        /* 隐藏滚动条 */
        .no-scrollbar::-webkit-scrollbar {
            display: none;
        }
        .no-scrollbar {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }