/* roulang page: index */
:root {
            --primary: #4F46E5;
            --primary-neon: #9333EA;
            --primary-pink: #EC4899;
            --slate-bg: #0F172A;
            --card-bg: #FFFFFF;
            --card-border: #E2E8F0;
            --text-main: #0F172A;
            --text-muted: #64748B;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: #F8FAFC;
            color: var(--text-main);
            overflow-x: hidden;
        }
        .gradient-text {
            background: linear-gradient(135deg, #4F46E5 0%, #9333EA 50%, #EC4899 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .gradient-bg {
            background: linear-gradient(135deg, #4F46E5 0%, #9333EA 50%, #EC4899 100%);
        }
        .gradient-bg-subtle {
            background: linear-gradient(135deg, rgba(79, 70, 229, 0.05) 0%, rgba(147, 51, 234, 0.05) 50%, rgba(236, 72, 153, 0.05) 100%);
        }
        .hero-banner-mask {
            background: radial-gradient(circle at top right, rgba(147, 51, 234, 0.25), transparent 50%),
                        radial-gradient(circle at bottom left, rgba(79, 70, 229, 0.2), transparent 45%),
                        linear-gradient(180deg, #0F172A 0%, #1E1B4B 100%);
        }
        .badge-capsule {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.025em;
            background: rgba(79, 70, 229, 0.1);
            color: #4F46E5;
            border: 1px solid rgba(79, 70, 229, 0.2);
        }
        .badge-capsule-dark {
            background: rgba(255, 255, 255, 0.1);
            color: #E2E8F0;
            border: 1px solid rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
        }
        .mega-menu-panel {
            visibility: hidden;
            opacity: 0;
            transform: translateY(10px);
            transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .group:hover .mega-menu-panel {
            visibility: visible;
            opacity: 1;
            transform: translateY(0);
        }
        .accordion-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
        }
        .accordion-item.active .accordion-content {
            max-height: 250px;
        }
        .accordion-item.active .accordion-chevron {
            transform: rotate(180deg);
        }

/* roulang page: category1 */
:root {
            --primary: #4F46E5;
            --primary-neon: #9333EA;
            --primary-pink: #EC4899;
            --slate-bg: #0F172A;
            --card-bg: #FFFFFF;
            --card-border: #E2E8F0;
            --text-main: #0F172A;
            --text-muted: #64748B;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: #F8FAFC;
            color: var(--text-main);
            overflow-x: hidden;
        }
        .gradient-bg {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-neon) 50%, var(--primary-pink) 100%);
        }
        .badge-capsule {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.025em;
            background: rgba(79, 70, 229, 0.1);
            color: #4F46E5;
            border: 1px solid rgba(79, 70, 229, 0.2);
        }
        .badge-capsule-dark {
            background: rgba(255, 255, 255, 0.1);
            color: #E2E8F0;
            border: 1px solid rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
        }
        .mega-menu-panel {
            visibility: hidden;
            opacity: 0;
            transform: translateY(10px);
            transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .group:hover .mega-menu-panel {
            visibility: visible;
            opacity: 1;
            transform: translateY(0);
        }
        .progress-ring-circle {
            transition: stroke-dashoffset 0.5s ease-in-out;
            transform: rotate(-90deg);
            transform-origin: 50% 50%;
        }
        .line-clamp-2 {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

/* roulang page: article */
:root {
            --primary: #4F46E5;
            --primary-neon: #9333EA;
            --primary-pink: #EC4899;
            --slate-bg: #0F172A;
            --card-bg: #FFFFFF;
            --card-border: #E2E8F0;
            --text-main: #0F172A;
            --text-muted: #64748B;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: #F8FAFC;
            color: var(--text-main);
            overflow-x: hidden;
            line-height: 1.6;
        }
        .gradient-bg {
            background: linear-gradient(135deg, #4F46E5 0%, #9333EA 50%, #EC4899 100%);
        }
        .gradient-text {
            background: linear-gradient(135deg, #4F46E5 0%, #9333EA 60%, #EC4899 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .badge-capsule {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.025em;
            background: rgba(79, 70, 229, 0.08);
            color: #4F46E5;
            border: 1px solid rgba(79, 70, 229, 0.2);
        }
        .badge-capsule-dark {
            background: rgba(255, 255, 255, 0.1);
            color: #E2E8F0;
            border: 1px solid rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
        }
        .mega-menu-panel {
            visibility: hidden;
            opacity: 0;
            transform: translateY(10px);
            transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .group:hover .mega-menu-panel {
            visibility: visible;
            opacity: 1;
            transform: translateY(0);
        }
        .prose-custom {
            color: #334155;
            font-size: 1.0625rem;
            line-height: 1.85;
        }
        .prose-custom p {
            margin-bottom: 1.5rem;
        }
        .prose-custom h2 {
            font-size: 1.625rem;
            font-weight: 800;
            color: #0F172A;
            margin-top: 2.5rem;
            margin-bottom: 1.25rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .prose-custom h2::before {
            content: '';
            display: inline-block;
            width: 4px;
            height: 1.35em;
            background: linear-gradient(180deg, #4F46E5, #9333EA);
            border-radius: 9999px;
        }
        .prose-custom h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #1E293B;
            margin-top: 2rem;
            margin-bottom: 1rem;
        }
        .prose-custom blockquote {
            border-left: 4px solid #818CF8;
            background: #F1F5F9;
            padding: 1.25rem 1.5rem;
            border-radius: 0 1rem 1rem 0;
            margin: 1.75rem 0;
            color: #475569;
            font-style: italic;
        }
        .prose-custom ul, .prose-custom ol {
            margin: 1.25rem 0 1.5rem 1.5rem;
        }
        .prose-custom li {
            margin-bottom: 0.5rem;
            list-style-type: disc;
        }
        .prose-custom table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            margin: 2rem 0;
            border-radius: 1rem;
            overflow: hidden;
            border: 1px solid #E2E8F0;
        }
        .prose-custom th {
            background-color: #F8FAFC;
            padding: 0.875rem 1rem;
            font-weight: 700;
            color: #1E293B;
            border-bottom: 1px solid #E2E8F0;
            text-align: left;
        }
        .prose-custom td {
            padding: 0.875rem 1rem;
            border-bottom: 1px solid #F1F5F9;
            color: #475569;
        }
        .prose-custom tr:last-child td {
            border-bottom: none;
        }
        .prose-custom img {
            border-radius: 1.25rem;
            box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.08);
            margin: 2rem auto;
            max-width: 100%;
            height: auto;
        }

/* roulang page: category2 */
:root {
            --primary: #4F46E5;
            --primary-neon: #9333EA;
            --primary-pink: #EC4899;
            --slate-bg: #0F172A;
            --card-bg: #FFFFFF;
            --card-border: #E2E8F0;
            --text-main: #0F172A;
            --text-muted: #64748B;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: #F8FAFC;
            color: var(--text-main);
            overflow-x: hidden;
        }

        .gradient-bg {
            background: linear-gradient(135deg, #4F46E5 0%, #9333EA 50%, #EC4899 100%);
        }

        .gradient-text {
            background: linear-gradient(135deg, #4F46E5 0%, #9333EA 50%, #EC4899 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-banner-mask {
            background: radial-gradient(circle at top right, rgba(147, 51, 234, 0.25), transparent 50%),
                        radial-gradient(circle at bottom left, rgba(79, 70, 229, 0.2), transparent 45%),
                        linear-gradient(180deg, #0F172A 0%, #1E1B4B 100%);
        }

        .badge-capsule {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.025em;
            background: rgba(79, 70, 229, 0.1);
            color: #4F46E5;
            border: 1px solid rgba(79, 70, 229, 0.2);
        }

        .badge-capsule-dark {
            background: rgba(255, 255, 255, 0.1);
            color: #E2E8F0;
            border: 1px solid rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
        }

        .mega-menu-panel {
            visibility: hidden;
            opacity: 0;
            transform: translateY(10px);
            transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
        }

        .group:hover .mega-menu-panel {
            visibility: visible;
            opacity: 1;
            transform: translateY(0);
        }

        .accordion-item.active .accordion-content {
            max-height: 350px;
        }

        .accordion-item.active .accordion-chevron {
            transform: rotate(180deg);
        }

        .filter-pill.active {
            background: linear-gradient(135deg, #4F46E5 0%, #9333EA 100%);
            color: #ffffff;
            border-color: transparent;
            box-shadow: 0 4px 14px -2px rgba(79, 70, 229, 0.35);
        }

        .video-card-thumb {
            aspect-ratio: 16 / 9;
            position: relative;
            overflow: hidden;
            background: #1E293B;
        }

        .video-card-thumb img {
            transition: transform 0.4s ease;
        }

        .video-card-item:hover .video-card-thumb img {
            transform: scale(1.05);
        }