/* roulang page: index */
:root {
            --bg-base: #0A0D14;
            --bg-card: #121722;
            --purple-main: #7C3AED;
            --green-accent: #10B981;
            --cyan-accent: #06B6D4;
        }
        body {
            background-color: var(--bg-base);
            color: #D1D5DB;
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            line-height: 1.75;
            overflow-x: hidden;
        }
        .text-glow {
            text-shadow: 0 0 20px rgba(124, 58, 237, 0.45);
        }
        .cyan-glow {
            text-shadow: 0 0 15px rgba(6, 182, 212, 0.4);
        }
        .glass-panel {
            background: rgba(18, 23, 34, 0.85);
            backdrop-filter: blur(16px);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .video-overlay {
            background: linear-gradient(180deg, rgba(10, 13, 20, 0.7) 0%, rgba(10, 13, 20, 0.95) 100%);
        }
        .hero-bg {
            background-image: url('/assets/images/0afd579feea3db28.jpg');
            background-size: cover;
            background-position: center;
        }
        .section-separator {
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        /* 平滑滚动与移动端底部适配 */
        html {
            scroll-behavior: smooth;
        }
        @media (max-width: 768px) {
            body {
                padding-bottom: 70px;
            }
        }