/* roulang page: index */
:root {
            --color-primary: #1A1D2E;
            --color-purple: #5E35B1;
            --color-purple-light: #7E57C2;
            --color-cyan: #00B4D8;
            --color-orange: #FF6B35;
            --color-bg-light: #F8F9FD;
            --color-card-bg: #FFFFFF;
            --color-dark-section: #0F111A;
            --color-text-main: #1A1D2E;
            --color-text-muted: #5C627A;
            --color-border: #E2E8F0;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--color-bg-light);
            color: var(--color-text-main);
        }

        body {
            line-height: 1.75;
            overflow-x: hidden;
        }

        .gradient-purple-cyan {
            background: linear-gradient(135deg, #5E35B1 0%, #00B4D8 100%);
        }

        .gradient-text {
            background: linear-gradient(135deg, #7E57C2 0%, #00B4D8 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .glass-dark {
            background: rgba(15, 17, 26, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .glass-light {
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(226, 232, 240, 0.8);
        }

        .card-shadow {
            box-shadow: 0 4px 20px -2px rgba(26, 29, 46, 0.06);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .card-shadow:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 28px -4px rgba(94, 53, 177, 0.14);
        }

        .section-padding {
            padding: 5rem 1rem;
        }

        @media (min-width: 768px) {
            .section-padding {
                padding: 6.5rem 2rem;
            }
        }

        /* 倒计时看板脉冲 */
        @keyframes radar-pulse {
            0% { transform: scale(0.95); opacity: 0.8; }
            50% { transform: scale(1.05); opacity: 0.3; }
            100% { transform: scale(0.95); opacity: 0.8; }
        }
        .live-pulse {
            animation: radar-pulse 2s infinite ease-in-out;
        }