/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #0f1f3d;
            --primary-light: #1a3058;
            --primary-dark: #0a142b;
            --accent: #f0b73e;
            --accent-light: #f5cc6a;
            --accent-dark: #d49a1e;
            --bg-light: #f4f6fa;
            --bg-card: #ffffff;
            --text-dark: #1a1a2e;
            --text-body: #3d4050;
            --text-muted: #7a7f93;
            --border-light: #e6e9f0;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(15, 31, 61, 0.06);
            --shadow-md: 0 6px 24px rgba(15, 31, 61, 0.10);
            --shadow-lg: 0 16px 48px rgba(15, 31, 61, 0.14);
            --transition: all 0.25s ease;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            padding-left: 0;
            list-style: none;
            margin-bottom: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.3;
            margin-top: 0;
        }
        p {
            margin-top: 0;
            margin-bottom: 1rem;
        }
        figure {
            margin: 0;
        }

        /* ===== Container ===== */
        .container-custom {
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        @media (min-width: 768px) {
            .container-custom {
                padding-left: 32px;
                padding-right: 32px;
            }
        }

        /* ===== Buttons ===== */
        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--primary-dark);
            border: none;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            box-shadow: 0 4px 12px rgba(240, 183, 62, 0.35);
            cursor: pointer;
            text-decoration: none;
        }
        .btn-accent:hover {
            background: var(--accent-light);
            box-shadow: 0 6px 20px rgba(240, 183, 62, 0.45);
            transform: translateY(-2px);
            color: var(--primary-dark);
        }
        .btn-accent:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(240, 183, 62, 0.30);
        }
        .btn-accent:focus-visible {
            outline: 3px solid var(--accent-light);
            outline-offset: 2px;
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
            padding: 10px 26px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            cursor: pointer;
            text-decoration: none;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline-light:active {
            transform: translateY(0);
        }
        .btn-outline-light:focus-visible {
            outline: 3px solid rgba(255, 255, 255, 0.5);
            outline-offset: 2px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            background: var(--primary);
            color: #fff;
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 2px 16px rgba(15, 31, 61, 0.25);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .site-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }
        .site-logo:hover {
            color: var(--accent);
        }
        .site-logo i {
            color: var(--accent);
            font-size: 1.6rem;
        }
        .header-top-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.10);
            border-radius: var(--radius-sm);
            padding: 6px 14px;
            gap: 8px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition);
        }
        .header-search:focus-within {
            background: rgba(255, 255, 255, 0.16);
            border-color: var(--accent);
        }
        .header-search i {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.9rem;
        }
        .header-search input {
            background: none;
            border: none;
            color: #fff;
            outline: none;
            width: 140px;
            font-size: 0.9rem;
            padding: 2px 0;
        }
        .header-search input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .header-search input::-ms-clear {
            display: none;
        }
        .header-cta-mobile {
            display: none;
        }
        .header-cta-desktop .btn-accent {
            padding: 8px 20px;
            font-size: 0.85rem;
        }

        /* Channel Tabs Nav */
        .channel-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 8px 0;
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: rgba(255, 255, 255, 0.15) transparent;
            -ms-overflow-style: none;
        }
        .channel-nav::-webkit-scrollbar {
            height: 4px;
        }
        .channel-nav::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.15);
            border-radius: 4px;
        }
        .channel-nav::-webkit-scrollbar-track {
            background: transparent;
        }
        .channel-tab {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border-radius: 100px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.88rem;
            font-weight: 500;
            transition: var(--transition);
            text-decoration: none;
            white-space: nowrap;
            border: 1px solid transparent;
        }
        .channel-tab:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }
        .channel-tab.active {
            color: var(--primary-dark);
            background: var(--accent);
            font-weight: 600;
            border-color: var(--accent);
        }
        .channel-tab.active:hover {
            background: var(--accent-light);
            color: var(--primary-dark);
        }
        .channel-tab i {
            font-size: 0.9rem;
        }
        .nav-toggle-mobile {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            padding: 4px 8px;
            cursor: pointer;
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            background: var(--primary-dark);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.35;
            transform: scale(1.02);
            transition: transform 8s ease;
        }
        .hero-section:hover .hero-bg {
            transform: scale(1.06);
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 31, 61, 0.88) 30%, rgba(15, 31, 61, 0.50) 80%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: 80px 0 70px;
            max-width: 780px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(240, 183, 62, 0.18);
            border: 1px solid rgba(240, 183, 62, 0.25);
            color: var(--accent);
            padding: 6px 18px;
            border-radius: 100px;
            font-size: 0.82rem;
            font-weight: 500;
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
        }
        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.15;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .hero-title span {
            color: var(--accent);
        }
        .hero-desc {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            max-width: 640px;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        /* ===== Section Common ===== */
        .section-block {
            padding: 72px 0;
        }
        .section-block-alt {
            background: var(--bg-card);
        }
        .section-block-dark {
            background: var(--primary);
            color: #fff;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-sub {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 40px;
        }
        .section-block-dark .section-title {
            color: #fff;
        }
        .section-block-dark .section-sub {
            color: rgba(255, 255, 255, 0.65);
        }
        .text-accent {
            color: var(--accent);
        }

        /* ===== Feature Cards ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            background: rgba(240, 183, 62, 0.10);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent);
            margin-bottom: 18px;
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: var(--accent);
            color: var(--primary-dark);
        }
        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 0.94rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ===== Content / CMS List ===== */
        .content-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 18px;
        }
        .content-item {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            padding: 20px 24px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            align-items: flex-start;
        }
        .content-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: transparent;
        }
        .content-item-thumb {
            flex-shrink: 0;
            width: 100px;
            height: 72px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--border-light);
        }
        .content-item-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .content-item-body {
            flex: 1;
            min-width: 0;
        }
        .content-item-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .content-item-title a {
            color: inherit;
        }
        .content-item-title a:hover {
            color: var(--accent-dark);
        }
        .content-item-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .content-item-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .content-item-meta .badge-tag {
            background: rgba(240, 183, 62, 0.12);
            color: var(--accent-dark);
            padding: 2px 10px;
            border-radius: 100px;
            font-weight: 500;
        }
        .empty-tip {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-muted);
            font-size: 1rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-light);
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-md);
            padding: 32px 16px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(4px);
            transition: var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.75);
            font-weight: 400;
        }

        /* ===== Cover Cards ===== */
        .cover-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 28px;
        }
        .cover-card {
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-card);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .cover-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .cover-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }
        .cover-card-body {
            padding: 20px 22px 24px;
        }
        .cover-card-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .cover-card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .cover-card-link {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--accent-dark);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .cover-card-link:hover {
            color: var(--accent);
            gap: 10px;
        }

        /* ===== Features Alt (图文) ===== */
        .features-alt {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .features-alt-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .features-alt-image img {
            width: 100%;
            height: auto;
            display: block;
        }
        .features-alt-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .features-alt-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .features-alt-item .num {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .features-alt-item h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .features-alt-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: transparent;
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
            gap: 12px;
        }
        .faq-question:hover {
            color: var(--accent-dark);
        }
        .faq-question i {
            font-size: 1.1rem;
            color: var(--text-muted);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.94rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            opacity: 0.10;
        }
        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 72px 20px;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-content h2 {
            font-size: 2rem;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-content p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.05rem;
            margin-bottom: 28px;
        }
        .cta-content .btn-accent {
            font-size: 1.05rem;
            padding: 14px 36px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-brand .site-logo {
            font-size: 1.3rem;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.55);
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.84rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .features-alt {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .features-alt-image {
                order: -1;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                padding: 10px 0;
            }
            .site-logo {
                font-size: 1.2rem;
            }
            .header-search {
                display: none;
            }
            .header-cta-desktop {
                display: none;
            }
            .header-cta-mobile {
                display: block;
            }
            .header-cta-mobile .btn-accent {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
            .channel-nav {
                padding: 6px 0;
                gap: 2px;
            }
            .channel-tab {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
            .hero-title {
                font-size: 1.9rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .hero-content {
                padding: 50px 0 50px;
            }
            .hero-section {
                min-height: 400px;
            }
            .section-block {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .feature-grid {
                grid-template-columns: 1fr 1fr;
            }
            .content-item {
                flex-direction: column;
            }
            .content-item-thumb {
                width: 100%;
                height: 140px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .cover-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-content h2 {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .cover-grid {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn-accent,
            .hero-actions .btn-outline-light {
                width: 100%;
                justify-content: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-number {
                font-size: 1.7rem;
            }
            .section-block {
                padding: 36px 0;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.92rem;
            }
            .faq-answer {
                padding: 0 16px 14px;
            }
            .content-item {
                padding: 16px;
            }
        }
        @media (max-width: 400px) {
            .channel-tab {
                padding: 4px 10px;
                font-size: 0.75rem;
            }
            .site-logo {
                font-size: 1rem;
            }
            .site-logo i {
                font-size: 1.2rem;
            }
        }

        /* ===== Utility ===== */
        .mb-0 {
            margin-bottom: 0 !important;
        }
        .mt-2 {
            margin-top: 8px !important;
        }
        .gap-2 {
            gap: 8px;
        }
        .gap-3 {
            gap: 16px;
        }
        .text-center {
            text-align: center;
        }
        .d-none {
            display: none;
        }
        .d-flex {
            display: flex;
        }
        .align-center {
            align-items: center;
        }
        .justify-between {
            justify-content: space-between;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }
        .w-100 {
            width: 100%;
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --clr-primary: #0d2137;
            --clr-primary-light: #1a3a5c;
            --clr-accent: #e8a838;
            --clr-accent-hover: #d4942e;
            --clr-accent-soft: #fdf6e8;
            --clr-bg: #f4f6fa;
            --clr-white: #ffffff;
            --clr-dark: #0d2137;
            --clr-text: #1e293b;
            --clr-text-soft: #64748b;
            --clr-border: #e2e8f0;
            --clr-shadow: rgba(13, 33, 55, 0.08);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px var(--clr-shadow);
            --shadow-md: 0 8px 24px var(--clr-shadow);
            --shadow-lg: 0 16px 48px rgba(13, 33, 55, 0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--clr-text);
            background: var(--clr-bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--clr-primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--clr-accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul {
            list-style: none;
        }

        /* ===== Container ===== */
        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* ===== Site Header ===== */
        .site-header {
            background: var(--clr-primary);
            border-bottom: 2px solid rgba(232, 168, 56, 0.25);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0 8px;
            flex-wrap: wrap;
            gap: 12px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--clr-white);
            letter-spacing: -0.5px;
            transition: var(--transition);
        }
        .site-logo i {
            color: var(--clr-accent);
            font-size: 1.5rem;
        }
        .site-logo:hover {
            color: var(--clr-accent);
        }
        .header-top-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 40px;
            padding: 4px 16px 4px 12px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition);
        }
        .header-search:focus-within {
            background: rgba(255, 255, 255, 0.18);
            border-color: var(--clr-accent);
        }
        .header-search i {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.9rem;
            margin-right: 8px;
        }
        .header-search input {
            background: transparent;
            border: none;
            outline: none;
            color: var(--clr-white);
            padding: 6px 0;
            width: 160px;
            font-size: 0.9rem;
        }
        .header-search input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--clr-accent);
            color: var(--clr-dark);
            font-weight: 700;
            padding: 8px 20px;
            border-radius: 40px;
            font-size: 0.85rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-accent:hover {
            background: var(--clr-accent-hover);
            color: var(--clr-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(232, 168, 56, 0.35);
        }
        .btn-accent:active {
            transform: translateY(0);
        }
        .header-cta-mobile {
            display: none;
        }

        /* Channel Nav */
        .channel-nav {
            display: flex;
            gap: 4px;
            padding: 6px 0 10px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .channel-nav::-webkit-scrollbar {
            display: none;
        }
        .channel-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 18px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.65);
            background: transparent;
            transition: var(--transition);
            white-space: nowrap;
            border: 1px solid transparent;
        }
        .channel-tab i {
            font-size: 0.85rem;
        }
        .channel-tab:hover {
            color: var(--clr-white);
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.1);
        }
        .channel-tab.active {
            color: var(--clr-dark);
            background: var(--clr-accent);
            border-color: var(--clr-accent);
            box-shadow: 0 4px 12px rgba(232, 168, 56, 0.3);
        }
        .channel-tab.active:hover {
            background: var(--clr-accent-hover);
        }

        @media (max-width: 768px) {
            .header-top {
                padding: 10px 0 6px;
            }
            .site-logo {
                font-size: 1.3rem;
            }
            .site-logo i {
                font-size: 1.2rem;
            }
            .header-search input {
                width: 100px;
            }
            .header-cta-desktop {
                display: none;
            }
            .header-cta-mobile {
                display: block;
            }
            .channel-tab {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
        }
        @media (max-width: 520px) {
            .header-search input {
                width: 72px;
            }
            .header-top-right {
                gap: 8px;
            }
            .channel-tab {
                padding: 5px 10px;
                font-size: 0.75rem;
                gap: 4px;
            }
            .channel-tab i {
                font-size: 0.75rem;
            }
        }

        /* ===== Article Hero / Banner ===== */
        .article-hero {
            position: relative;
            padding: 80px 0 60px;
            background: var(--clr-primary);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center center;
            background-attachment: fixed;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 33, 55, 0.88) 0%, rgba(13, 33, 55, 0.72) 100%);
            z-index: 1;
        }
        .article-hero .container-custom {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .article-hero-content {
            max-width: 860px;
            margin: 0 auto;
            text-align: center;
        }
        .article-hero .article-category-badge {
            display: inline-block;
            background: var(--clr-accent);
            color: var(--clr-dark);
            font-size: 0.8rem;
            font-weight: 700;
            padding: 4px 16px;
            border-radius: 40px;
            margin-bottom: 20px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .article-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--clr-white);
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }
        .article-hero .article-meta {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 20px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
        }
        .article-hero .article-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-hero .article-meta i {
            color: var(--clr-accent);
        }
        @media (max-width: 768px) {
            .article-hero {
                padding: 60px 0 40px;
                min-height: 240px;
                background-attachment: scroll;
            }
            .article-hero h1 {
                font-size: 1.8rem;
            }
            .article-hero .article-meta {
                gap: 12px;
                font-size: 0.8rem;
            }
        }
        @media (max-width: 520px) {
            .article-hero h1 {
                font-size: 1.4rem;
            }
            .article-hero .article-meta {
                flex-direction: column;
                gap: 6px;
            }
        }

        /* ===== Article Main Content ===== */
        .article-main {
            padding: 60px 0 80px;
        }
        .article-layout {
            max-width: 860px;
            margin: 0 auto;
            background: var(--clr-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 48px 56px;
            position: relative;
            margin-top: -40px;
            z-index: 3;
        }
        .article-cover-image {
            margin: -48px -56px 40px;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
            overflow: hidden;
            max-height: 420px;
        }
        .article-cover-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .article-body {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--clr-text);
        }
        .article-body p {
            margin-bottom: 1.4rem;
        }
        .article-body h2,
        .article-body h3 {
            margin-top: 2rem;
            margin-bottom: 1rem;
            font-weight: 700;
            color: var(--clr-primary);
        }
        .article-body h2 {
            font-size: 1.5rem;
        }
        .article-body h3 {
            font-size: 1.2rem;
        }
        .article-body ul,
        .article-body ol {
            margin-bottom: 1.4rem;
            padding-left: 1.5rem;
        }
        .article-body li {
            margin-bottom: 0.5rem;
        }
        .article-body img {
            border-radius: var(--radius-md);
            margin: 1.5rem 0;
            box-shadow: var(--shadow-sm);
        }
        .article-body blockquote {
            border-left: 4px solid var(--clr-accent);
            padding: 12px 20px;
            margin: 1.5rem 0;
            background: var(--clr-accent-soft);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--clr-text-soft);
        }
        .article-body a {
            color: var(--clr-accent-hover);
            text-decoration: underline;
        }
        .article-body a:hover {
            color: var(--clr-accent);
        }

        /* Article Not Found */
        .article-not-found {
            text-align: center;
            padding: 60px 20px;
        }
        .article-not-found i {
            font-size: 4rem;
            color: var(--clr-text-soft);
            margin-bottom: 20px;
            opacity: 0.5;
        }
        .article-not-found h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--clr-primary);
            margin-bottom: 12px;
        }
        .article-not-found p {
            color: var(--clr-text-soft);
            margin-bottom: 24px;
        }
        .article-not-found .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            background: var(--clr-primary);
            color: var(--clr-white);
            border-radius: 40px;
            font-weight: 600;
            transition: var(--transition);
        }
        .article-not-found .btn-back:hover {
            background: var(--clr-accent);
            color: var(--clr-dark);
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .article-layout {
                padding: 32px 24px;
                margin-top: -20px;
                margin-left: 8px;
                margin-right: 8px;
            }
            .article-cover-image {
                margin: -32px -24px 30px;
                max-height: 280px;
            }
            .article-body {
                font-size: 1rem;
            }
        }
        @media (max-width: 520px) {
            .article-layout {
                padding: 24px 16px;
                margin-left: 4px;
                margin-right: 4px;
            }
            .article-cover-image {
                margin: -24px -16px 24px;
                max-height: 200px;
            }
            .article-body {
                font-size: 0.95rem;
            }
        }

        /* ===== Article Footer / Share ===== */
        .article-share-wrap {
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--clr-border);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .article-tag {
            display: inline-block;
            background: var(--clr-accent-soft);
            color: var(--clr-accent-hover);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 40px;
            transition: var(--transition);
        }
        .article-tag:hover {
            background: var(--clr-accent);
            color: var(--clr-dark);
        }
        .share-buttons {
            display: flex;
            gap: 10px;
        }
        .share-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--clr-bg);
            color: var(--clr-text-soft);
            font-size: 1rem;
            transition: var(--transition);
            border: 1px solid var(--clr-border);
        }
        .share-btn:hover {
            background: var(--clr-accent);
            color: var(--clr-dark);
            border-color: var(--clr-accent);
            transform: translateY(-2px);
        }

        @media (max-width: 520px) {
            .article-share-wrap {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* ===== Related Articles ===== */
        .related-section {
            padding: 60px 0 80px;
            background: var(--clr-white);
        }
        .related-section .section-title {
            text-align: center;
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--clr-primary);
            margin-bottom: 40px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--clr-bg);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--clr-border);
            box-shadow: var(--shadow-sm);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--clr-accent);
        }
        .related-card .card-img {
            height: 180px;
            overflow: hidden;
        }
        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .related-card:hover .card-img img {
            transform: scale(1.05);
        }
        .related-card .card-body {
            padding: 18px 20px 22px;
        }
        .related-card .card-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--clr-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .related-card .card-body p {
            font-size: 0.88rem;
            color: var(--clr-text-soft);
            margin-bottom: 12px;
            line-height: 1.6;
        }
        .related-card .card-meta {
            font-size: 0.8rem;
            color: var(--clr-text-soft);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .related-card .card-meta i {
            color: var(--clr-accent);
            margin-right: 4px;
        }

        @media (max-width: 992px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .related-grid {
                grid-template-columns: 1fr;
            }
            .related-section .section-title {
                font-size: 1.4rem;
            }
        }

        /* ===== CTA Section ===== */
        .article-cta {
            padding: 60px 0;
            background: var(--clr-primary);
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            position: relative;
        }
        .article-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 33, 55, 0.9) 0%, rgba(13, 33, 55, 0.75) 100%);
            z-index: 1;
        }
        .article-cta .container-custom {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .article-cta h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--clr-white);
            margin-bottom: 12px;
        }
        .article-cta p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .article-cta .btn-group {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .article-cta .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            background: var(--clr-accent);
            color: var(--clr-dark);
            font-weight: 700;
            border-radius: 40px;
            font-size: 1rem;
            transition: var(--transition);
            border: none;
        }
        .article-cta .btn-primary-custom:hover {
            background: var(--clr-accent-hover);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(232, 168, 56, 0.4);
            color: var(--clr-dark);
        }
        .article-cta .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            background: transparent;
            color: var(--clr-white);
            font-weight: 600;
            border-radius: 40px;
            font-size: 1rem;
            transition: var(--transition);
            border: 2px solid rgba(255, 255, 255, 0.3);
        }
        .article-cta .btn-outline-custom:hover {
            border-color: var(--clr-accent);
            color: var(--clr-accent);
            transform: translateY(-3px);
        }

        @media (max-width: 768px) {
            .article-cta h2 {
                font-size: 1.5rem;
            }
            .article-cta p {
                font-size: 0.95rem;
            }
            .article-cta .btn-primary-custom,
            .article-cta .btn-outline-custom {
                padding: 12px 28px;
                font-size: 0.9rem;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--clr-primary);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
            border-top: 2px solid rgba(232, 168, 56, 0.2);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .site-logo {
            font-size: 1.4rem;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.5);
            max-width: 300px;
        }
        .footer-col h4 {
            color: var(--clr-white);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 8px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 2px;
            background: var(--clr-accent);
            border-radius: 2px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.88rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
        }
        .footer-col ul li a:hover {
            color: var(--clr-accent);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding: 24px 0;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.35);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a:hover {
            color: var(--clr-accent);
        }

        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 576px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Back to Top ===== */
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 48px;
            height: 48px;
            background: var(--clr-accent);
            color: var(--clr-dark);
            border: none;
            border-radius: 50%;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
        }
        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .back-to-top:hover {
            background: var(--clr-accent-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        /* ===== Bootstrap Overrides ===== */
        .btn:focus,
        .form-control:focus {
            box-shadow: none;
        }
        .form-control {
            border-radius: var(--radius-sm);
            border-color: var(--clr-border);
        }
        .form-control:focus {
            border-color: var(--clr-accent);
        }

        /* ===== Print ===== */
        @media print {
            .site-header,
            .site-footer,
            .article-cta,
            .related-section,
            .back-to-top,
            .share-buttons {
                display: none !important;
            }
            .article-layout {
                box-shadow: none;
                margin-top: 0;
                padding: 20px;
                border: none;
            }
            .article-hero {
                background: var(--clr-primary) !important;
                padding: 40px 0;
                min-height: auto;
                background-attachment: scroll;
            }
            .article-hero::before {
                display: none;
            }
            body {
                background: #fff;
            }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --accent: #f4a261;
            --accent-light: #f8c291;
            --bg-dark: #0b1622;
            --bg-darker: #060e18;
            --bg-card: #112240;
            --bg-card-hover: #1a2d4a;
            --bg-light: #f8f9fa;
            --text-primary: #ffffff;
            --text-secondary: #ccd6f6;
            --text-muted: #8892b0;
            --text-dark: #1a1a2e;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-light: rgba(255, 255, 255, 0.15);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-base: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --container-padding: 24px;
            --section-spacing: 80px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-base);
            background-color: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
        }

        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
            text-decoration: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }

        ul,
        ol {
            list-style: none;
        }

        /* ===== Container ===== */
        .container-custom {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 var(--container-padding);
        }

        /* ===== Typography ===== */
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-primary);
            letter-spacing: -0.01em;
        }

        .section-title {
            font-size: 2.4rem;
            margin-bottom: 12px;
            text-align: center;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }

        .text-gradient {
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* ===== Buttons ===== */
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border: none;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.35);
        }
        .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 32px rgba(230, 57, 70, 0.5);
            color: #fff;
        }
        .btn-primary-custom:active {
            transform: translateY(0);
        }

        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            background: transparent;
            color: var(--text-primary);
            border: 2px solid var(--border-light);
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn-outline-custom:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--primary-light);
            color: var(--primary-light);
            transform: translateY(-2px);
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            background: linear-gradient(135deg, var(--accent), #e07a2f);
            color: #1a1a2e;
            border: none;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 2px 12px rgba(244, 162, 97, 0.3);
        }
        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(244, 162, 97, 0.45);
            color: #1a1a2e;
        }

        /* ===== Badge / Tag ===== */
        .badge-custom {
            display: inline-block;
            padding: 4px 14px;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 50px;
            background: rgba(230, 57, 70, 0.2);
            color: var(--primary-light);
            border: 1px solid rgba(230, 57, 70, 0.25);
            letter-spacing: 0.3px;
        }
        .badge-custom.green {
            background: rgba(46, 213, 115, 0.15);
            color: #2ed573;
            border-color: rgba(46, 213, 115, 0.25);
        }
        .badge-custom.blue {
            background: rgba(54, 174, 255, 0.15);
            color: #36aeff;
            border-color: rgba(54, 174, 255, 0.25);
        }
        .badge-custom.gold {
            background: rgba(244, 162, 97, 0.15);
            color: var(--accent);
            border-color: rgba(244, 162, 97, 0.25);
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(11, 22, 45, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            padding: 0 0 0 0;
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0 8px;
            gap: 16px;
            flex-wrap: wrap;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            transition: var(--transition);
        }
        .site-logo i {
            color: var(--primary-light);
            font-size: 1.6rem;
        }
        .site-logo:hover {
            color: var(--primary-light);
            transform: scale(1.02);
        }

        .header-top-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .header-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            padding: 4px 16px;
            gap: 8px;
            transition: var(--transition);
        }
        .header-search:focus-within {
            border-color: var(--primary-light);
            background: rgba(255, 255, 255, 0.1);
        }
        .header-search i {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .header-search input {
            background: transparent;
            border: none;
            color: var(--text-primary);
            padding: 8px 0;
            width: 180px;
            font-size: 0.9rem;
        }
        .header-search input::placeholder {
            color: var(--text-muted);
        }
        .header-search input:focus {
            outline: none;
        }

        .header-cta-desktop {
            display: block;
        }
        .header-cta-mobile {
            display: none;
        }

        /* Channel Nav */
        .channel-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 4px 0 8px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .channel-nav::-webkit-scrollbar {
            display: none;
        }

        .channel-tab {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: var(--transition);
            background: transparent;
            border: none;
        }
        .channel-tab i {
            font-size: 0.85rem;
            opacity: 0.7;
        }
        .channel-tab:hover {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-primary);
        }
        .channel-tab.active {
            background: rgba(230, 57, 70, 0.2);
            color: var(--primary-light);
            font-weight: 600;
        }
        .channel-tab.active i {
            opacity: 1;
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            padding: 100px 0 80px;
            background: var(--bg-darker);
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.4;
            z-index: 0;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(6, 14, 24, 0.92) 40%, rgba(11, 22, 45, 0.7) 70%, rgba(230, 57, 70, 0.15) 100%);
            z-index: 1;
        }
        .hero-section .container-custom {
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 18px;
            background: rgba(230, 57, 70, 0.2);
            border: 1px solid rgba(230, 57, 70, 0.3);
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--primary-light);
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .hero-badge i {
            font-size: 0.7rem;
        }

        .hero-title {
            font-size: 3.2rem;
            font-weight: 800;
            margin-bottom: 16px;
            max-width: 720px;
            line-height: 1.15;
        }
        .hero-title .highlight {
            color: var(--primary-light);
        }

        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin-bottom: 32px;
            line-height: 1.7;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 48px;
            flex-wrap: wrap;
        }
        .hero-stat-item {
            text-align: left;
        }
        .hero-stat-item .number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.2;
        }
        .hero-stat-item .number .unit {
            font-size: 1rem;
            color: var(--text-muted);
            font-weight: 400;
        }
        .hero-stat-item .label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        /* ===== Section Common ===== */
        .section-padding {
            padding: var(--section-spacing) 0;
        }

        .section-bg-alt {
            background: var(--bg-darker);
        }

        /* ===== Card Core ===== */
        .card-custom {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: var(--transition);
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-6px);
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
            background: var(--bg-card-hover);
        }
        .card-custom .card-icon {
            font-size: 2rem;
            color: var(--primary-light);
            margin-bottom: 16px;
        }
        .card-custom h3 {
            font-size: 1.2rem;
            margin-bottom: 10px;
        }
        .card-custom p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        /* ===== Feature / Service Cards ===== */
        .feature-card {
            text-align: center;
            padding: 36px 28px;
        }
        .feature-card .card-icon {
            width: 64px;
            height: 64px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.6rem;
            background: rgba(230, 57, 70, 0.12);
            color: var(--primary-light);
        }

        /* ===== Event Category Tabs ===== */
        .event-category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
        }

        .event-cat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            transition: var(--transition);
            cursor: pointer;
        }
        .event-cat-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary-light);
            box-shadow: 0 8px 30px rgba(230, 57, 70, 0.15);
        }
        .event-cat-card .cat-icon {
            font-size: 2.2rem;
            margin-bottom: 12px;
        }
        .event-cat-card h4 {
            font-size: 1.05rem;
            margin-bottom: 6px;
        }
        .event-cat-card p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-bottom: 12px;
        }

        /* ===== Stats / Data Board ===== */
        .data-board {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 24px;
        }
        .data-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
            transition: var(--transition);
        }
        .data-item:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-sm);
            transform: translateY(-3px);
        }
        .data-item .data-number {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .data-item .data-label {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-top: 6px;
        }

        /* ===== Hot Events Cards (PHP generated) ===== */
        .events-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .event-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .event-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-light);
        }
        .event-card .event-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .event-card .event-body {
            padding: 20px 20px 24px;
        }
        .event-card .event-tag {
            margin-bottom: 10px;
        }
        .event-card h4 {
            font-size: 1.05rem;
            margin-bottom: 8px;
        }
        .event-card p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 14px;
        }
        .event-card .event-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .event-card .event-meta i {
            margin-right: 4px;
        }

        /* ===== Process Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 32px;
            counter-reset: step;
        }
        .step-item {
            text-align: center;
            position: relative;
            padding: 24px 16px;
        }
        .step-item::before {
            counter-increment: step;
            content: counter(step);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            margin: 0 auto 16px;
        }
        .step-item h4 {
            font-size: 1.05rem;
            margin-bottom: 8px;
        }
        .step-item p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 0;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question i {
            color: var(--primary-light);
            transition: var(--transition);
            font-size: 0.85rem;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-darker);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .cta-box {
            background: linear-gradient(135deg, rgba(230, 57, 70, 0.12), rgba(244, 162, 97, 0.08));
            border: 1px solid rgba(230, 57, 70, 0.2);
            border-radius: var(--radius-lg);
            padding: 56px 40px;
            text-align: center;
        }
        .cta-box h2 {
            font-size: 2rem;
            margin-bottom: 12px;
        }
        .cta-box p {
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 28px;
            font-size: 1.05rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-darker);
            border-top: 1px solid var(--border-color);
            padding: 56px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }
        .footer-brand .site-logo {
            font-size: 1.3rem;
            margin-bottom: 12px;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            max-width: 320px;
            line-height: 1.7;
        }
        .footer-col h4 {
            font-size: 1rem;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .hero-title {
                font-size: 2.6rem;
            }
            .section-title {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-spacing: 56px;
                --container-padding: 16px;
            }
            .header-top {
                flex-direction: column;
                align-items: stretch;
                padding: 12px 0 4px;
            }
            .header-top-right {
                justify-content: space-between;
                flex-wrap: wrap;
            }
            .header-search input {
                width: 120px;
            }
            .header-cta-desktop {
                display: none;
            }
            .header-cta-mobile {
                display: block;
            }
            .channel-nav {
                gap: 2px;
                padding: 4px 0 6px;
            }
            .channel-tab {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
            .channel-tab i {
                font-size: 0.75rem;
            }
            .hero-section {
                padding: 60px 0 48px;
                min-height: auto;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 24px;
                margin-top: 32px;
            }
            .hero-stat-item .number {
                font-size: 1.6rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 32px;
            }
            .events-grid {
                grid-template-columns: 1fr;
            }
            .data-board {
                grid-template-columns: 1fr 1fr;
            }
            .cta-box {
                padding: 36px 20px;
            }
            .cta-box h2 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn-primary-custom,
            .hero-actions .btn-outline-custom {
                justify-content: center;
            }
            .hero-stats {
                flex-direction: column;
                gap: 16px;
            }
            .data-board {
                grid-template-columns: 1fr;
            }
            .event-category-grid {
                grid-template-columns: 1fr 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .header-search input {
                width: 80px;
            }
            .card-custom {
                padding: 20px 16px;
            }
        }

        /* ===== Bootstrap Overrides ===== */
        .accordion-button:not(.collapsed) {
            background: transparent;
            box-shadow: none;
            color: var(--text-primary);
        }
        .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }
        .accordion-item {
            background: transparent;
            border: none;
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-darker);
        }
        ::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.15);
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: rgba(255, 255, 255, 0.25);
        }