/* roulang page: index */
:root {
            --bg-deep: #060B18;
            --bg-elevated: #0C1A30;
            --primary-cyan: #00D2FF;
            --accent-green: #00F298;
            --alert-red: #FF5252;
            --text-main: #F3F4F6;
            --text-muted: #9CA3AF;
            --glass-bg: rgba(16, 28, 54, 0.72);
            --glass-border: rgba(0, 210, 255, 0.18);
        }

        body {
            background-color: var(--bg-deep);
            color: var(--text-main);
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            line-height: 1.75;
            overflow-x: hidden;
        }

        .glass-panel {
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            border-radius: 1rem;
        }

        .glow-btn {
            background: linear-gradient(135deg, #00D2FF 0%, #0084FF 100%);
            box-shadow: 0 0 15px rgba(0, 210, 255, 0.35);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .glow-btn:hover {
            box-shadow: 0 0 25px rgba(0, 210, 255, 0.65);
            transform: translateY(-2px);
        }

        .glow-btn-green {
            background: linear-gradient(135deg, #00F298 0%, #059669 100%);
            box-shadow: 0 0 15px rgba(0, 242, 152, 0.3);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .glow-btn-green:hover {
            box-shadow: 0 0 25px rgba(0, 242, 152, 0.6);
            transform: translateY(-2px);
        }

        .glass-card-hover {
            transition: all 0.3s ease;
        }

        .glass-card-hover:hover {
            border-color: rgba(0, 210, 255, 0.5);
            box-shadow: 0 10px 30px -10px rgba(0, 210, 255, 0.25);
            transform: translateY(-4px);
        }

        /* 自定义手风琴动画 */
        details summary::-webkit-details-marker {
            display: none;
        }
        details[open] summary .faq-icon {
            transform: rotate(180deg);
        }