/* roulang page: index */
:root {
            --primary: #6366F1;
            --primary-dark: #4F46E5;
            --accent: #06B6D4;
            --accent-green: #10B981;
            --accent-rose: #F43F5E;
            --bg-page: #F8FAFC;
            --bg-dark: #0F172A;
            --bg-dark-card: #1E293B;
            --text-main: #0F172A;
            --text-muted: #475569;
            --radius-box: 24px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
            background-color: var(--bg-page);
            color: var(--text-main);
            overflow-x: hidden;
        }

        .gradient-brand {
            background: linear-gradient(135deg, #6366F1 0%, #06B6D4 100%);
        }

        .gradient-brand-text {
            background: linear-gradient(135deg, #4F46E5 0%, #0891B2 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .gradient-dark-banner {
            background: linear-gradient(180deg, rgba(15, 23, 42, 0.92) 0%, rgba(15, 23, 42, 0.98) 100%);
        }

        .rounded-card {
            border-radius: var(--radius-box);
        }

        .box-glow {
            box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.05), 0 8px 10px -6px rgba(15, 23, 42, 0.03);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .box-glow:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 30px -10px rgba(99, 102, 241, 0.15), 0 10px 15px -3px rgba(15, 23, 42, 0.05);
        }

        .badge-capsule {
            border-radius: 9999px;
            display: inline-flex;
            align-items: center;
            padding: 0.35rem 0.85rem;
            font-size: 0.8125rem;
            font-weight: 600;
        }

        .badge-pulse::before {
            content: '';
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: #10B981;
            margin-right: 6px;
            box-shadow: 0 0 8px #10B981;
        }

        .play-button-ring {
            box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.7);
            animation: pulse-ring 2s infinite cubic-bezier(0.66, 0, 0, 1);
        }

        @keyframes pulse-ring {
            0% {
                transform: scale(0.95);
                box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.7);
            }
            70% {
                transform: scale(1);
                box-shadow: 0 0 0 18px rgba(6, 182, 212, 0);
            }
            100% {
                transform: scale(0.95);
                box-shadow: 0 0 0 0 rgba(6, 182, 212, 0);
            }
        }

        /* 隐藏原生滚动条并提供平滑视觉 */
        .no-scrollbar::-webkit-scrollbar {
            display: none;
        }
        .no-scrollbar {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }