/* roulang page: index */
:root {
            --bg-black: #0A0A0C;
            --bg-dark: #121216;
            --bg-card: #16161D;
            --border-line: rgba(255, 255, 255, 0.08);
            --text-main: #E2E8F0;
            --text-muted: #94A3B8;
            --accent: #D4FF00;
        }
        body {
            background-color: var(--bg-black);
            color: var(--text-main);
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            overflow-x: hidden;
        }
        .bento-card {
            background: linear-gradient(180deg, rgba(26, 26, 34, 0.6) 0%, rgba(18, 18, 22, 0.8) 100%);
            border: 1px solid var(--border-line);
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .bento-card:hover {
            border-color: rgba(212, 255, 0, 0.3);
            transform: translateY(-2px);
        }
        .text-glow {
            text-shadow: 0 0 24px rgba(212, 255, 0, 0.25);
        }
        .accordion-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
        }
        .accordion-open .accordion-content {
            max-height: 240px;
        }
        .accordion-open .accordion-icon {
            transform: rotate(180deg);
        }