/* roulang page: index */
:root {
            --color-primary: #1a3658;
            --color-primary-dark: #0f2440;
            --color-primary-light: #2c5282;
            --color-accent: #c8956c;
            --color-accent-light: #d4a87c;
            --color-accent-dark: #a6784a;
            --color-bg: #ffffff;
            --color-bg-alt: #f8f9fb;
            --color-bg-dark: #0d1b2a;
            --color-bg-card: #ffffff;
            --color-text: #1a1a2e;
            --color-text-secondary: #4a5568;
            --color-text-muted: #718096;
            --color-text-light: #a0aec0;
            --color-border: #e2e8f0;
            --color-border-light: #edf2f7;
            --color-success: #10b981;
            --color-warning: #f59e0b;
            --color-error: #ef4444;
            --color-white: #ffffff;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
            --shadow-xl: 0 16px 48px rgba(0,0,0,0.12);
            --shadow-accent: 0 4px 20px rgba(200,149,108,0.25);
            --transition-fast: 0.15s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.4s ease;
            --font-sans: 'Noto Sans SC', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-display: 'Noto Sans SC', 'Inter', sans-serif;
            --max-width: 1200px;
            --nav-height: 56px;
            --nav-top-height: 52px;
        }

        *, *::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-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

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

        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        ul, ol {
            list-style: none;
        }

        h1, h2, h3, h4, h5, h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--color-text);
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-white);
            box-shadow: var(--shadow-sm);
            border-bottom: 1px solid var(--color-border-light);
        }

        .nav-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-top-height);
            padding: 0 24px;
            max-width: var(--max-width);
            margin: 0 auto;
            gap: 20px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .nav-logo:hover {
            color: var(--color-primary-light);
        }

        .nav-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-white);
            font-size: 1.1rem;
            font-weight: 900;
            flex-shrink: 0;
        }

        .nav-top-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-search-btn {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-full);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text-secondary);
            background: var(--color-bg-alt);
            transition: all var(--transition-fast);
            font-size: 1rem;
        }

        .nav-search-btn:hover {
            background: var(--color-border-light);
            color: var(--color-primary);
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: var(--radius-full);
            background: var(--color-accent);
            color: var(--color-white);
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-accent);
        }

        .nav-cta-btn:hover {
            background: var(--color-accent-dark);
            box-shadow: 0 6px 24px rgba(200,149,108,0.35);
            transform: translateY(-1px);
        }

        .nav-cta-btn:active {
            transform: translateY(0);
        }

        .nav-channels-row {
            background: var(--color-bg-alt);
            border-top: 1px solid var(--color-border-light);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }

        .nav-channels-row::-webkit-scrollbar {
            display: none;
        }

        .nav-channels-inner {
            display: flex;
            align-items: center;
            gap: 4px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 6px 20px;
            min-width: max-content;
        }

        .nav-channel-link {
            display: inline-flex;
            align-items: center;
            padding: 9px 18px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            white-space: nowrap;
            transition: all var(--transition-fast);
            position: relative;
        }

        .nav-channel-link:hover {
            color: var(--color-primary);
            background: rgba(26,54,88,0.04);
        }

        .nav-channel-link.active {
            color: var(--color-white);
            background: var(--color-primary);
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(26,54,88,0.3);
        }

        .nav-channel-link .channel-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 20px;
            height: 18px;
            padding: 0 6px;
            border-radius: var(--radius-full);
            background: var(--color-accent);
            color: var(--color-white);
            font-size: 0.7rem;
            font-weight: 700;
            margin-left: 6px;
        }

        .nav-channel-link.active .channel-badge {
            background: var(--color-accent-light);
        }

        @media (max-width: 768px) {
            .nav-top-row {
                padding: 0 16px;
                height: 48px;
            }
            .nav-logo {
                font-size: 1.15rem;
            }
            .nav-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .nav-cta-btn {
                padding: 7px 14px;
                font-size: 0.8rem;
            }
            .nav-channels-inner {
                padding: 5px 12px;
                gap: 2px;
            }
            .nav-channel-link {
                padding: 7px 14px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 480px) {
            .nav-cta-btn span {
                display: none;
            }
            .nav-cta-btn {
                padding: 8px 12px;
                gap: 0;
            }
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            background: var(--color-bg-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 560px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13,27,42,0.88) 0%, rgba(26,54,88,0.78) 40%, rgba(13,27,42,0.7) 100%);
            z-index: 1;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, rgba(255,255,255,0.06) 0%, transparent 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 60px 24px;
            width: 100%;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: var(--radius-full);
            background: rgba(255,255,255,0.1);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255,255,255,0.18);
            color: var(--color-accent-light);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 24px;
            letter-spacing: 0.02em;
        }

        .hero-badge .dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--color-accent);
            animation: pulse-dot 2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.5); }
        }

        .hero-title {
            font-size: clamp(2rem, 4.5vw, 2.8rem);
            font-weight: 900;
            color: var(--color-white);
            letter-spacing: -0.02em;
            margin-bottom: 18px;
            line-height: 1.25;
            max-width: 700px;
        }

        .hero-title .highlight {
            color: var(--color-accent-light);
            position: relative;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.78);
            max-width: 560px;
            line-height: 1.7;
            margin-bottom: 32px;
            font-weight: 400;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 26px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--color-accent);
            color: var(--color-white);
            box-shadow: var(--shadow-accent);
        }

        .btn-primary:hover {
            background: var(--color-accent-dark);
            box-shadow: 0 8px 28px rgba(200,149,108,0.4);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline {
            background: transparent;
            color: var(--color-white);
            border: 2px solid rgba(255,255,255,0.4);
        }

        .btn-outline:hover {
            border-color: rgba(255,255,255,0.8);
            background: rgba(255,255,255,0.06);
            transform: translateY(-2px);
        }

        .btn-outline:active {
            transform: translateY(0);
        }

        .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid rgba(255,255,255,0.12);
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
        }

        .hero-stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--color-white);
            letter-spacing: -0.01em;
        }

        .hero-stat-label {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.6);
            margin-top: 2px;
        }

        @media (max-width: 768px) {
            .hero-section {
                min-height: 440px;
            }
            .hero-content {
                padding: 40px 16px;
            }
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-subtitle {
                font-size: 1rem;
                line-height: 1.6;
            }
            .hero-stats-row {
                gap: 20px;
                margin-top: 28px;
                padding-top: 20px;
            }
            .hero-stat-number {
                font-size: 1.4rem;
            }
            .btn {
                padding: 11px 20px;
                font-size: 0.88rem;
            }
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 64px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }

        .section-label {
            display: inline-block;
            padding: 5px 14px;
            border-radius: var(--radius-full);
            background: rgba(200,149,108,0.1);
            color: var(--color-accent-dark);
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: clamp(1.5rem, 3vw, 1.9rem);
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--color-text-secondary);
            max-width: 560px;
            margin: 10px auto 0;
            line-height: 1.65;
        }

        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }
            .section-header {
                margin-bottom: 30px;
            }
        }

        /* ========== FEATURES GRID ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-white);
            font-size: 1.3rem;
            margin-bottom: 18px;
        }

        .feature-card:nth-child(2) .feature-card-icon {
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
        }

        .feature-card:nth-child(3) .feature-card-icon {
            background: linear-gradient(135deg, #2d6a4f 0%, #40916c 100%);
        }

        .feature-card-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text);
        }

        .feature-card-desc {
            font-size: 0.92rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }

        @media (max-width: 900px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 560px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
            .feature-card {
                padding: 24px 20px;
            }
        }

        /* ========== LATEST NEWS SECTION ========== */
        .latest-section {
            background: var(--color-bg-alt);
        }

        .latest-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .latest-item {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .latest-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-border);
            transform: translateY(-2px);
        }

        .latest-item-category {
            display: inline-flex;
            align-self: flex-start;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            background: rgba(26,54,88,0.06);
            color: var(--color-primary);
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .latest-item-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.45;
            transition: color var(--transition-fast);
        }

        .latest-item:hover .latest-item-title {
            color: var(--color-primary-light);
        }

        .latest-item-summary {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.55;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .latest-item-meta {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
            margin-top: auto;
            padding-top: 6px;
        }

        .latest-empty {
            text-align: center;
            padding: 48px 24px;
            color: var(--color-text-muted);
            font-size: 0.95rem;
            grid-column: 1 / -1;
        }

        @media (max-width: 700px) {
            .latest-list {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .latest-item {
                padding: 18px;
            }
        }

        /* ========== CATEGORY ENTRY CARDS ========== */
        .category-cards {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .category-entry-card {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: flex-end;
            background: var(--color-bg-dark);
            transition: all var(--transition-slow);
            cursor: pointer;
            isolation: isolate;
        }

        .category-entry-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-xl);
        }

        .category-entry-card .card-bg-img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 0;
            transition: transform var(--transition-slow);
        }

        .category-entry-card:hover .card-bg-img {
            transform: scale(1.06);
        }

        .category-entry-card::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(13,27,42,0.9) 0%, rgba(13,27,42,0.45) 50%, rgba(13,27,42,0.2) 100%);
            z-index: 1;
        }

        .category-entry-card .card-content {
            position: relative;
            z-index: 2;
            padding: 28px 28px;
            width: 100%;
        }

        .category-entry-card .card-tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: var(--radius-full);
            background: var(--color-accent);
            color: var(--color-white);
            font-size: 0.78rem;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .category-entry-card .card-title {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--color-white);
            margin-bottom: 6px;
        }

        .category-entry-card .card-desc {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.75);
            line-height: 1.5;
        }

        .category-entry-card .card-arrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 12px;
            color: var(--color-accent-light);
            font-weight: 600;
            font-size: 0.9rem;
            transition: gap var(--transition-fast);
        }

        .category-entry-card:hover .card-arrow {
            gap: 10px;
        }

        @media (max-width: 700px) {
            .category-cards {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .category-entry-card {
                min-height: 220px;
            }
            .category-entry-card .card-content {
                padding: 20px;
            }
            .category-entry-card .card-title {
                font-size: 1.15rem;
            }
        }

        /* ========== STATS BAR ========== */
        .stats-bar {
            background: var(--color-primary);
            padding: 40px 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .stat-item {
            padding: 12px;
        }

        .stat-value {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--color-white);
            letter-spacing: -0.02em;
        }

        .stat-label {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.7);
            margin-top: 4px;
            font-weight: 400;
        }

        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-value {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 400px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-value {
                font-size: 1.4rem;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            border-color: var(--color-border);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            gap: 12px;
            user-select: none;
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text-muted);
            transition: all var(--transition-fast);
            font-size: 0.75rem;
        }

        .faq-item.open .faq-icon {
            background: var(--color-accent);
            color: var(--color-white);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 24px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            font-size: 0.92rem;
            color: var(--color-text-secondary);
            line-height: 1.65;
        }

        @media (max-width: 768px) {
            .faq-question {
                padding: 16px 18px;
                font-size: 0.92rem;
            }
            .faq-answer {
                padding: 0 18px;
            }
            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--color-bg-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            position: relative;
            text-align: center;
            padding: 72px 0;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13,27,42,0.92) 0%, rgba(26,54,88,0.85) 100%);
            z-index: 1;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-title {
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 800;
            color: var(--color-white);
            margin-bottom: 12px;
        }

        .cta-desc {
            font-size: 1.05rem;
            color: rgba(255,255,255,0.7);
            max-width: 500px;
            margin: 0 auto 28px;
            line-height: 1.6;
        }

        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 15px 34px;
            border-radius: var(--radius-full);
            background: var(--color-accent);
            color: var(--color-white);
            font-weight: 700;
            font-size: 1rem;
            box-shadow: var(--shadow-accent);
            transition: all var(--transition-base);
        }

        .btn-cta-large:hover {
            background: var(--color-accent-dark);
            box-shadow: 0 10px 32px rgba(200,149,108,0.45);
            transform: translateY(-3px);
        }

        .btn-cta-large:active {
            transform: translateY(0);
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 48px 0;
            }
            .btn-cta-large {
                padding: 13px 26px;
                font-size: 0.92rem;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-primary-dark);
            color: rgba(255,255,255,0.7);
            padding: 48px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }

        .footer-brand .footer-logo {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--color-white);
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.6;
            color: rgba(255,255,255,0.55);
        }

        .footer-col-title {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--color-white);
            margin-bottom: 14px;
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.55);
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--color-accent-light);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.4);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer {
                padding: 36px 0 20px;
            }
        }

        /* ========== MISC ========== */
        .text-accent {
            color: var(--color-accent);
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0,0,0,0);
            white-space: nowrap;
            border: 0;
        }

        :focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

/* roulang page: article */
:root {
            --primary: #1a3550;
            --primary-light: #264a6e;
            --primary-dark: #0f2236;
            --accent: #c9a035;
            --accent-light: #dbb850;
            --accent-dark: #a88220;
            --bg: #f7f8fa;
            --bg-white: #ffffff;
            --bg-warm: #fdfaf3;
            --text: #2d3748;
            --text-strong: #1a202c;
            --text-weak: #718096;
            --text-muted: #a0aec0;
            --border: #e2e8f0;
            --border-light: #edf2f7;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 10px 32px rgba(0, 0, 0, 0.10), 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.12), 0 8px 20px rgba(0, 0, 0, 0.06);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-mono: 'SF Mono', 'Fira Code', 'Consolas', 'Menlo', monospace;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
            --container-max: 1200px;
            --content-max: 780px;
            --nav-height: 128px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-narrow {
            max-width: var(--content-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
            border-bottom: 1px solid var(--border-light);
        }

        .nav-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 28px;
            max-width: var(--container-max);
            margin: 0 auto;
            gap: 20px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
        }

        .nav-logo:hover {
            opacity: 0.82;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 800;
            letter-spacing: 0;
            flex-shrink: 0;
        }

        .nav-top-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-search-btn {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-full);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--text-weak);
            transition: all var(--transition-fast);
            font-size: 1rem;
        }

        .nav-search-btn:hover {
            background: var(--bg);
            color: var(--text);
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 9px 20px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
            letter-spacing: 0.01em;
        }

        .nav-cta-btn:hover {
            background: var(--accent-dark);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .nav-cta-btn:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }

        .nav-channels-row {
            background: var(--primary);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .nav-channels-inner {
            display: flex;
            align-items: center;
            gap: 4px;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
        }

        .nav-channels-inner::-webkit-scrollbar {
            height: 3px;
        }

        .nav-channels-inner::-webkit-scrollbar-track {
            background: transparent;
        }

        .nav-channels-inner::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 10px;
        }

        .nav-channel-link {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 12px 20px;
            color: rgba(255, 255, 255, 0.8);
            font-weight: 500;
            font-size: 0.95rem;
            white-space: nowrap;
            border-radius: var(--radius-sm) var(--radius-sm) 0 0;
            transition: all var(--transition-fast);
            position: relative;
            letter-spacing: 0.02em;
        }

        .nav-channel-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 60%;
            height: 3px;
            background: var(--accent);
            border-radius: 3px 3px 0 0;
            transition: transform var(--transition-fast);
        }

        .nav-channel-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-channel-link.active,
        .nav-channel-link[aria-current="page"] {
            color: #fff;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.1);
        }

        .nav-channel-link.active::after,
        .nav-channel-link[aria-current="page"]::after {
            transform: translateX(-50%) scaleX(1);
        }

        .channel-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.68rem;
            font-weight: 700;
            padding: 2px 8px;
            background: #e53e3e;
            color: #fff;
            border-radius: var(--radius-full);
            line-height: 1.3;
            letter-spacing: 0.03em;
            animation: badgePulse 2.2s ease-in-out infinite;
        }

        @keyframes badgePulse {
            0%,
            100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.1);
            }
        }

        /* ========== ARTICLE BANNER ========== */
        .article-banner {
            position: relative;
            background: var(--primary-dark) url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            min-height: 320px;
            display: flex;
            align-items: center;
            padding: 56px 0;
            overflow: hidden;
        }

        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg,
                    rgba(15, 34, 54, 0.78) 0%,
                    rgba(26, 53, 80, 0.85) 60%,
                    rgba(15, 34, 54, 0.92) 100%);
            z-index: 1;
        }

        .article-banner-content {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 20px;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.7);
        }

        .article-breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
            transition: color var(--transition-fast);
        }

        .article-breadcrumb a:hover {
            color: var(--accent-light);
        }

        .article-breadcrumb .separator {
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.7rem;
        }

        .article-banner .article-category-tag {
            display: inline-block;
            padding: 5px 14px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-full);
            font-size: 0.82rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .article-banner h1 {
            font-size: 2.2rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.35;
            letter-spacing: 0.03em;
            max-width: 800px;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        }

        .article-meta-row {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-top: 16px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
        }

        .article-meta-row span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta-row i {
            font-size: 0.85rem;
            color: var(--accent-light);
        }

        /* ========== ARTICLE CONTENT ========== */
        .article-main {
            padding: 48px 0 60px;
            background: var(--bg-white);
        }

        .article-content-wrapper {
            max-width: var(--content-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .article-body {
            font-size: 1.08rem;
            line-height: 1.85;
            color: var(--text);
            letter-spacing: 0.01em;
        }

        .article-body h2 {
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--text-strong);
            margin: 36px 0 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-light);
            letter-spacing: 0.03em;
        }

        .article-body h3 {
            font-size: 1.28rem;
            font-weight: 600;
            color: var(--text-strong);
            margin: 28px 0 12px;
            letter-spacing: 0.02em;
        }

        .article-body p {
            margin-bottom: 18px;
            text-align: justify;
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 24px auto;
            box-shadow: var(--shadow-md);
            max-width: 100%;
        }

        .article-body blockquote {
            border-left: 4px solid var(--accent);
            background: var(--bg-warm);
            padding: 18px 24px;
            margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-strong);
            font-style: italic;
            letter-spacing: 0.02em;
        }

        .article-body ul,
        .article-body ol {
            margin: 18px 0;
            padding-left: 28px;
        }

        .article-body li {
            margin-bottom: 8px;
            padding-left: 4px;
        }

        .article-body ul li::marker {
            color: var(--accent);
        }

        .article-body a {
            color: var(--primary-light);
            text-decoration: underline;
            text-underline-offset: 3px;
            transition: color var(--transition-fast);
        }

        .article-body a:hover {
            color: var(--accent-dark);
        }

        .article-body code {
            background: var(--bg);
            padding: 3px 8px;
            border-radius: var(--radius-sm);
            font-family: var(--font-mono);
            font-size: 0.9em;
            color: var(--primary-dark);
            border: 1px solid var(--border-light);
        }

        .article-body pre {
            background: var(--primary-dark);
            color: #e2e8f0;
            padding: 20px 24px;
            border-radius: var(--radius-md);
            overflow-x: auto;
            margin: 22px 0;
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .article-body pre code {
            background: none;
            padding: 0;
            border: none;
            color: inherit;
            font-size: inherit;
        }

        /* ========== ARTICLE FOOTER META ========== */
        .article-footer-meta {
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }

        .article-tags {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .article-tags .tag-label {
            font-size: 0.85rem;
            color: var(--text-weak);
            font-weight: 500;
        }

        .article-tag {
            display: inline-block;
            padding: 5px 14px;
            background: var(--bg);
            color: var(--text);
            border-radius: var(--radius-full);
            font-size: 0.82rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            border: 1px solid var(--border-light);
            letter-spacing: 0.02em;
        }

        .article-tag:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .article-share {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .article-share .share-label {
            font-size: 0.85rem;
            color: var(--text-weak);
            font-weight: 500;
        }

        .share-btn {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-full);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            color: var(--text-weak);
            background: var(--bg);
            transition: all var(--transition-fast);
            border: 1px solid var(--border-light);
        }

        .share-btn:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        /* ========== NOT FOUND STATE ========== */
        .not-found-section {
            text-align: center;
            padding: 80px 24px;
            background: var(--bg-white);
        }

        .not-found-icon {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .not-found-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }

        .not-found-section p {
            color: var(--text-weak);
            margin-bottom: 28px;
            font-size: 1rem;
        }

        .btn-return-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .btn-return-home:hover {
            background: var(--primary-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        /* ========== RELATED ARTICLES ========== */
        .related-section {
            padding: 56px 0 64px;
            background: var(--bg);
        }

        .section-label {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent);
            margin-bottom: 8px;
        }

        .section-title {
            font-size: 1.65rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 32px;
            letter-spacing: 0.03em;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .related-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--border);
        }

        .related-card-image {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }

        .related-card-body {
            padding: 18px 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-card-category {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 0.05em;
            margin-bottom: 6px;
        }

        .related-card-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-strong);
            line-height: 1.5;
            margin-bottom: 8px;
            letter-spacing: 0.02em;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card-date {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-top: auto;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            padding: 60px 0;
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -60px;
            width: 300px;
            height: 300px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -50px;
            left: -40px;
            width: 220px;
            height: 220px;
            background: rgba(255, 255, 255, 0.025);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 600px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .cta-inner h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.02rem;
            margin-bottom: 28px;
            line-height: 1.7;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 460px;
            margin: 0 auto;
        }

        .cta-form input {
            flex: 1;
            padding: 13px 18px;
            border-radius: var(--radius-full);
            border: 2px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 0.95rem;
            outline: none;
            transition: all var(--transition-fast);
        }

        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .cta-form input:focus {
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.16);
            box-shadow: 0 0 0 4px rgba(201, 160, 53, 0.2);
        }

        .cta-form button {
            padding: 13px 28px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.95rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .cta-form button:hover {
            background: var(--accent-light);
            box-shadow: var(--shadow-lg);
            transform: translateY(-1px);
        }

        .cta-form button:active {
            transform: translateY(0);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 52px 0 28px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-logo {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 340px;
        }

        .footer-col-title {
            font-size: 0.85rem;
            font-weight: 700;
            color: #fff;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 16px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .footer-links a:hover {
            color: var(--accent-light);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
            letter-spacing: 0.03em;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }

            .article-banner h1 {
                font-size: 1.8rem;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px) {
            .nav-top-row {
                padding: 10px 18px;
            }

            .nav-logo {
                font-size: 1.05rem;
                gap: 7px;
            }

            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.82rem;
            }

            .nav-cta-btn span {
                display: none;
            }

            .nav-cta-btn {
                padding: 9px 14px;
                font-size: 0.82rem;
            }

            .nav-channel-link {
                padding: 10px 14px;
                font-size: 0.85rem;
            }

            .nav-channels-inner {
                padding: 0 12px;
                gap: 1px;
            }

            .article-banner {
                min-height: 240px;
                padding: 36px 0;
            }

            .article-banner h1 {
                font-size: 1.5rem;
            }

            .article-breadcrumb {
                font-size: 0.78rem;
                gap: 5px;
                margin-bottom: 14px;
            }

            .article-meta-row {
                font-size: 0.8rem;
                gap: 12px;
            }

            .article-body {
                font-size: 1rem;
                line-height: 1.75;
            }

            .article-body h2 {
                font-size: 1.3rem;
                margin: 26px 0 12px;
            }

            .article-body h3 {
                font-size: 1.12rem;
                margin: 20px 0 10px;
            }

            .article-footer-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 14px;
            }

            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
                padding: 0 18px;
            }

            .section-title {
                font-size: 1.35rem;
                margin-bottom: 22px;
            }

            .cta-inner h2 {
                font-size: 1.35rem;
            }

            .cta-form {
                flex-direction: column;
                gap: 10px;
            }

            .cta-form input,
            .cta-form button {
                width: 100%;
                text-align: center;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }

            .container {
                padding: 0 16px;
            }

            .container-narrow {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .nav-top-row {
                padding: 8px 12px;
                gap: 10px;
            }

            .nav-logo {
                font-size: 0.95rem;
            }

            .logo-icon {
                width: 26px;
                height: 26px;
                font-size: 0.7rem;
            }

            .nav-cta-btn {
                padding: 7px 11px;
                font-size: 0.75rem;
            }

            .nav-channel-link {
                padding: 8px 10px;
                font-size: 0.78rem;
                gap: 4px;
            }

            .channel-badge {
                font-size: 0.6rem;
                padding: 1px 6px;
            }

            .article-banner {
                min-height: 200px;
                padding: 28px 0;
            }

            .article-banner h1 {
                font-size: 1.25rem;
            }

            .article-breadcrumb {
                font-size: 0.72rem;
            }

            .article-meta-row {
                font-size: 0.75rem;
                gap: 8px;
            }

            .article-body {
                font-size: 0.95rem;
            }

            .article-body h2 {
                font-size: 1.15rem;
            }

            .article-body h3 {
                font-size: 1.02rem;
            }

            .article-body blockquote {
                padding: 12px 16px;
                margin: 16px 0;
            }

            .related-card-body {
                padding: 14px 16px 18px;
            }

            .related-card-title {
                font-size: 0.95rem;
            }

            .section-title {
                font-size: 1.2rem;
            }

            .cta-inner h2 {
                font-size: 1.2rem;
            }

            .cta-inner p {
                font-size: 0.9rem;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #1a3c5e;
            --color-primary-light: #2a5a8a;
            --color-primary-dark: #0f2840;
            --color-accent: #c89b3c;
            --color-accent-light: #e0b95a;
            --color-accent-dark: #a07a28;
            --color-bg: #fafaf8;
            --color-bg-alt: #f3f1ec;
            --color-bg-dark: #1a1f2b;
            --color-surface: #ffffff;
            --color-text: #2c2c2c;
            --color-text-secondary: #5a5a5a;
            --color-text-muted: #8a8a8a;
            --color-text-light: #b0b0b0;
            --color-text-on-dark: #e8e6e0;
            --color-border: #e0ded8;
            --color-border-light: #eeede8;
            --color-success: #3a7d5a;
            --color-warning: #d4952b;
            --color-error: #c0392b;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 22px;
            --radius-full: 9999px;
            --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.09);
            --shadow-lg: 0 14px 36px rgba(0, 0, 0, 0.11);
            --shadow-xl: 0 22px 50px rgba(0, 0, 0, 0.14);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Serif SC', 'STSong', 'SimSun', serif;
            --max-width: 1240px;
            --nav-height: 128px;
            --nav-top-row-height: 56px;
            --nav-channels-height: 48px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-primary-dark);
        }
        h1 {
            font-size: clamp(1.8rem, 3.8vw, 2.6rem);
        }
        h2 {
            font-size: clamp(1.4rem, 2.8vw, 1.9rem);
        }
        h3 {
            font-size: clamp(1.1rem, 2vw, 1.35rem);
        }
        p {
            margin-bottom: 0.9em;
            color: var(--color-text-secondary);
        }
        p:last-child {
            margin-bottom: 0;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 28px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 18px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-surface);
            box-shadow: var(--shadow-sm);
            border-bottom: 1px solid var(--color-border-light);
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .nav-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-top-row-height);
            padding: 0 28px;
            max-width: var(--max-width);
            margin: 0 auto;
            gap: 20px;
        }
        @media (max-width: 768px) {
            .nav-top-row {
                padding: 0 18px;
            }
        }
        @media (max-width: 520px) {
            .nav-top-row {
                padding: 0 12px;
                gap: 10px;
            }
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--color-primary-dark);
            letter-spacing: 0.02em;
            white-space: nowrap;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }
        .nav-logo:hover {
            opacity: 0.82;
            color: var(--color-primary-dark);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-md);
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }
        @media (max-width: 520px) {
            .nav-logo {
                font-size: 1.05rem;
                gap: 7px;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
                border-radius: var(--radius-sm);
            }
        }

        .nav-top-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-search-btn {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-full);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            font-size: 1rem;
            background: transparent;
        }
        .nav-search-btn:hover {
            background: var(--color-bg-alt);
            color: var(--color-primary);
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            background: var(--color-accent);
            color: #fff;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            transition: all var(--transition-base);
            letter-spacing: 0.01em;
        }
        .nav-cta-btn:hover {
            background: var(--color-accent-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }
        .nav-cta-btn:active {
            transform: translateY(0);
            box-shadow: none;
        }
        @media (max-width: 520px) {
            .nav-cta-btn span {
                display: none;
            }
            .nav-cta-btn {
                padding: 9px 13px;
                font-size: 0.85rem;
            }
            .nav-search-btn {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
            }
        }

        /* Channels Row */
        .nav-channels-row {
            border-top: 1px solid var(--color-border-light);
            background: var(--color-surface);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
            height: var(--nav-channels-height);
            display: flex;
            align-items: center;
        }
        .nav-channels-row::-webkit-scrollbar {
            display: none;
        }
        .nav-channels-inner {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 0 28px;
            max-width: var(--max-width);
            margin: 0 auto;
            width: 100%;
            flex-shrink: 0;
            min-width: max-content;
        }
        @media (max-width: 768px) {
            .nav-channels-inner {
                padding: 0 18px;
                gap: 2px;
            }
        }
        @media (max-width: 520px) {
            .nav-channels-inner {
                padding: 0 10px;
                gap: 0;
            }
        }

        .nav-channel-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 17px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.92rem;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.01em;
        }
        .nav-channel-link:hover {
            color: var(--color-primary);
            background: var(--color-bg-alt);
        }
        .nav-channel-link.active,
        .nav-channel-link[aria-current="page"] {
            color: #fff;
            background: var(--color-primary);
            box-shadow: var(--shadow-xs);
        }
        .nav-channel-link.active:hover,
        .nav-channel-link[aria-current="page"]:hover {
            color: #fff;
            background: var(--color-primary-light);
        }
        .channel-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.68rem;
            font-weight: 700;
            background: #e74c3c;
            color: #fff;
            border-radius: var(--radius-full);
            padding: 2px 7px;
            line-height: 1;
            animation: badgePulse 2s ease-in-out infinite;
        }
        @keyframes badgePulse {
            0%,
            100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.12);
            }
        }
        @media (max-width: 520px) {
            .nav-channel-link {
                padding: 7px 12px;
                font-size: 0.82rem;
                gap: 4px;
            }
            .channel-badge {
                font-size: 0.6rem;
                padding: 2px 5px;
            }
        }

        /* Search Dropdown */
        .search-dropdown {
            display: none;
            position: absolute;
            top: 100%;
            right: 28px;
            z-index: 1010;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            padding: 16px;
            width: 340px;
            max-width: calc(100vw - 40px);
        }
        .search-dropdown.active {
            display: block;
        }
        .search-dropdown input {
            width: 100%;
            padding: 11px 14px;
            border: 2px solid var(--color-border);
            border-radius: var(--radius-md);
            font-size: 0.95rem;
            transition: border-color var(--transition-fast);
            background: var(--color-bg);
        }
        .search-dropdown input:focus {
            border-color: var(--color-primary-light);
            background: var(--color-surface);
        }
        @media (max-width: 520px) {
            .search-dropdown {
                right: 10px;
                width: 280px;
            }
        }

        /* Main */
        .site-main {
            flex: 1;
        }

        /* Section Spacing */
        .section {
            padding: 60px 0;
        }
        .section-sm {
            padding: 40px 0;
        }
        .section-lg {
            padding: 80px 0;
        }
        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }
            .section-lg {
                padding: 50px 0;
            }
        }
        @media (max-width: 520px) {
            .section {
                padding: 30px 0;
            }
            .section-lg {
                padding: 38px 0;
            }
        }

        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-header h2 {
            margin-bottom: 10px;
            position: relative;
            display: inline-block;
        }
        .section-header h2::after {
            content: '';
            display: block;
            width: 50px;
            height: 3px;
            background: var(--color-accent);
            margin: 10px auto 0;
            border-radius: var(--radius-full);
        }
        .section-header .section-subtitle {
            color: var(--color-text-muted);
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto;
        }

        /* Hero */
        .hero-category {
            position: relative;
            padding: 80px 0 70px;
            background: var(--color-primary-dark);
            color: var(--color-text-on-dark);
            overflow: hidden;
            text-align: center;
        }
        .hero-category::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.28;
            z-index: 0;
        }
        .hero-category::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 40, 64, 0.55) 0%, rgba(15, 40, 64, 0.85) 100%);
            z-index: 1;
        }
        .hero-category .container {
            position: relative;
            z-index: 2;
        }
        .hero-category .hero-badge {
            display: inline-block;
            background: rgba(200, 155, 60, 0.2);
            border: 1px solid rgba(200, 155, 60, 0.45);
            color: var(--color-accent-light);
            padding: 6px 16px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.88rem;
            margin-bottom: 18px;
            letter-spacing: 0.03em;
        }
        .hero-category h1 {
            color: #fff;
            font-size: clamp(1.9rem, 4.5vw, 2.8rem);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .hero-category .hero-desc {
            color: rgba(255, 255, 255, 0.82);
            font-size: 1.08rem;
            max-width: 640px;
            margin: 0 auto 24px;
            line-height: 1.75;
        }
        .hero-category .hero-stats-row {
            display: flex;
            justify-content: center;
            gap: 36px;
            flex-wrap: wrap;
            margin-top: 10px;
        }
        .hero-stat-item {
            text-align: center;
        }
        .hero-stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-accent-light);
            line-height: 1;
        }
        .hero-stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .hero-category {
                padding: 50px 0 44px;
            }
            .hero-stats-row {
                gap: 22px;
            }
            .hero-stat-number {
                font-size: 1.5rem;
            }
            .hero-stat-label {
                font-size: 0.78rem;
            }
        }
        @media (max-width: 520px) {
            .hero-category {
                padding: 36px 0 32px;
            }
            .hero-category h1 {
                font-size: 1.5rem;
            }
            .hero-category .hero-desc {
                font-size: 0.92rem;
            }
            .hero-stats-row {
                gap: 16px;
            }
            .hero-stat-number {
                font-size: 1.25rem;
            }
        }

        /* Feature Cards Grid */
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 26px;
        }
        @media (max-width: 768px) {
            .topics-grid {
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
                gap: 18px;
            }
        }
        @media (max-width: 520px) {
            .topics-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        .topic-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            height: 100%;
            cursor: pointer;
        }
        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-border);
        }
        .topic-card:focus-visible {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
        }
        .topic-card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--color-bg-alt);
        }
        .topic-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .topic-card:hover .topic-card-img-wrap img {
            transform: scale(1.05);
        }
        .topic-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-primary);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: var(--radius-full);
            letter-spacing: 0.02em;
            z-index: 2;
        }
        .topic-card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .topic-card-body h3 {
            font-size: 1.1rem;
            margin-bottom: 8px;
            color: var(--color-primary-dark);
            line-height: 1.4;
        }
        .topic-card-body .topic-card-excerpt {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.6;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .topic-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 14px;
            padding-top: 12px;
            border-top: 1px solid var(--color-border-light);
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }
        .topic-card-meta .meta-date {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .topic-card-meta .meta-read {
            display: flex;
            align-items: center;
            gap: 4px;
            color: var(--color-accent);
            font-weight: 600;
        }
        @media (max-width: 520px) {
            .topic-card-body {
                padding: 14px 15px 16px;
            }
            .topic-card-body h3 {
                font-size: 1rem;
            }
        }

        /* Highlight Panel */
        .highlight-panel {
            background: var(--color-surface);
            border-radius: var(--radius-xl);
            padding: 40px 36px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            display: flex;
            gap: 32px;
            align-items: center;
            flex-wrap: wrap;
        }
        .highlight-panel-img {
            flex: 0 0 240px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            aspect-ratio: 4 / 3;
        }
        .highlight-panel-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .highlight-panel-content {
            flex: 1;
            min-width: 260px;
        }
        .highlight-panel-content h3 {
            margin-bottom: 8px;
        }
        .highlight-panel-content .hl-tag {
            display: inline-block;
            background: #fdf3d6;
            color: var(--color-accent-dark);
            font-weight: 700;
            font-size: 0.78rem;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            margin-bottom: 10px;
        }
        .highlight-panel-content p {
            color: var(--color-text-secondary);
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .highlight-panel {
                flex-direction: column;
                padding: 24px 20px;
                gap: 18px;
            }
            .highlight-panel-img {
                flex: 0 0 auto;
                width: 100%;
                aspect-ratio: 16 / 9;
            }
        }

        /* Process / Steps */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
            counter-reset: step-counter;
        }
        @media (max-width: 900px) {
            .steps-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
        }
        @media (max-width: 520px) {
            .steps-row {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }
        .step-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            position: relative;
            transition: all var(--transition-base);
            counter-increment: step-counter;
        }
        .step-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .step-card::before {
            content: counter(step-counter);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-full);
            font-weight: 800;
            font-size: 1.1rem;
            margin-bottom: 12px;
        }
        .step-card h4 {
            font-size: 1rem;
            margin-bottom: 6px;
            color: var(--color-primary-dark);
        }
        .step-card p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        /* CTA Section */
        .cta-section {
            background: var(--color-primary);
            color: #fff;
            text-align: center;
            padding: 60px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            color: #fff;
            margin-bottom: 10px;
        }
        .cta-section .cta-desc {
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 24px;
            font-size: 1.02rem;
        }
        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 480px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-form input {
            flex: 1;
            min-width: 220px;
            padding: 13px 18px;
            border-radius: var(--radius-full);
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.3);
            font-size: 0.95rem;
            transition: all var(--transition-fast);
        }
        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.55);
        }
        .cta-form input:focus {
            border-color: var(--color-accent-light);
            background: rgba(255, 255, 255, 0.22);
            outline: none;
        }
        .cta-form .btn-cta-submit {
            padding: 13px 28px;
            background: var(--color-accent);
            color: #fff;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }
        .cta-form .btn-cta-submit:hover {
            background: var(--color-accent-light);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .cta-form .btn-cta-submit:active {
            transform: translateY(0);
            box-shadow: none;
        }
        @media (max-width: 520px) {
            .cta-section {
                padding: 40px 0;
            }
            .cta-form {
                flex-direction: column;
                align-items: center;
            }
            .cta-form input {
                width: 100%;
                min-width: auto;
            }
            .cta-form .btn-cta-submit {
                width: 100%;
            }
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--color-border-light);
            padding: 20px 0;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--color-border-light);
        }
        .faq-item:hover {
            background: var(--color-bg-alt);
            padding-left: 12px;
            border-radius: var(--radius-sm);
        }
        .faq-question {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-primary-dark);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            color: var(--color-accent);
            font-size: 1rem;
            transition: transform var(--transition-base);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), margin-top var(--transition-base);
            color: var(--color-text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            margin-top: 10px;
        }
        @media (max-width: 520px) {
            .faq-item {
                padding: 15px 0;
            }
            .faq-question {
                font-size: 0.95rem;
            }
        }

        /* Footer */
        .site-footer {
            background: var(--color-bg-dark);
            color: var(--color-text-on-dark);
            padding: 48px 0 24px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 30px;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        .footer-brand .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }
        .footer-brand p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .footer-col-title {
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--color-accent-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 18px;
            text-align: center;
        }
        .footer-bottom p {
            color: rgba(255, 255, 255, 0.45);
            font-size: 0.82rem;
            margin: 0;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 11px 22px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.93rem;
            transition: all var(--transition-base);
            letter-spacing: 0.01em;
            cursor: pointer;
            text-align: center;
            justify-content: center;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--color-primary-light);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-outline {
            border: 2px solid var(--color-primary);
            color: var(--color-primary);
            background: transparent;
        }
        .btn-outline:hover {
            background: var(--color-primary);
            color: #fff;
        }
        .btn-accent {
            background: var(--color-accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: var(--color-accent-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
        }
        .btn:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn:focus-visible {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
        }

        /* Utility */
        .text-center {
            text-align: center;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mt-3 {
            margin-top: 24px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .visually-hidden {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1a3c5e;
            --primary-dark: #0f2840;
            --primary-light: #2a5580;
            --accent: #d4853c;
            --accent-hover: #c07430;
            --accent-light: #f5e6d8;
            --bg: #f8f6f3;
            --bg-white: #ffffff;
            --bg-light: #fdfcf9;
            --bg-card: #ffffff;
            --bg-dark: #1a2a38;
            --bg-hero-overlay: rgba(12, 24, 40, 0.72);
            --text: #2c2c2c;
            --text-secondary: #5a5a5a;
            --text-light: #7a7a7a;
            --text-muted: #9a9a9a;
            --text-white: #f5f2ed;
            --text-white-secondary: #d5cfc6;
            --border: #e5e0d8;
            --border-light: #efece5;
            --border-card: #eae6de;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
            --shadow: 0 4px 14px rgba(0, 0, 0, 0.07);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 16px 42px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 24px 56px rgba(0, 0, 0, 0.15);
            --radius-sm: 6px;
            --radius: 10px;
            --radius-md: 14px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --radius-full: 9999px;
            --transition: 0.22s ease;
            --transition-slow: 0.35s ease;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;
            --max-width: 1240px;
            --max-width-narrow: 960px;
            --nav-height-top: 56px;
            --nav-height-channels: 48px;
            --nav-total-height: 104px;
        }

        *,
        *::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-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }

        button:focus-visible,
        a:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 28px;
        }

        .container-narrow {
            max-width: var(--max-width-narrow);
            margin: 0 auto;
            padding: 0 28px;
            width: 100%;
        }

        .section-padding {
            padding: 70px 0;
        }

        .section-padding-sm {
            padding: 48px 0;
        }

        .section-padding-lg {
            padding: 90px 0;
        }

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent);
            background: var(--accent-light);
            padding: 6px 16px;
            border-radius: var(--radius-full);
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 2.1rem;
            font-weight: 750;
            color: var(--primary-dark);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-subtitle {
            font-size: 1.08rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 680px;
        }

        .section-title--center {
            text-align: center;
        }

        .section-subtitle--center {
            text-align: center;
            margin: 0 auto 40px;
        }

        .section-header {
            margin-bottom: 44px;
        }

        .section-header--center {
            text-align: center;
        }

        .section-header--center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
            border-bottom: 1px solid var(--border);
        }

        .nav-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 28px;
            height: var(--nav-height-top);
            max-width: var(--max-width);
            margin: 0 auto;
            gap: 20px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 750;
            font-size: 1.22rem;
            color: var(--primary-dark);
            white-space: nowrap;
            letter-spacing: -0.01em;
            text-decoration: none;
            flex-shrink: 0;
        }

        .nav-logo:hover {
            color: var(--primary-light);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 1rem;
            letter-spacing: 0;
            flex-shrink: 0;
        }

        .nav-top-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-search-btn {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-full);
            background: transparent;
            color: var(--text-secondary);
            font-size: 1.05rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
            border: 1px solid transparent;
        }

        .nav-search-btn:hover {
            background: var(--bg-light);
            color: var(--primary);
            border-color: var(--border);
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 9px 18px;
            border-radius: var(--radius-full);
            background: var(--accent);
            color: #fff;
            font-weight: 650;
            font-size: 0.9rem;
            white-space: nowrap;
            transition: all var(--transition);
            text-decoration: none;
            letter-spacing: 0.01em;
        }

        .nav-cta-btn:hover {
            background: var(--accent-hover);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .nav-cta-btn i {
            font-size: 0.85rem;
        }

        .nav-channels-row {
            background: var(--primary-dark);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
        }

        .nav-channels-row::-webkit-scrollbar {
            height: 3px;
        }

        .nav-channels-row::-webkit-scrollbar-track {
            background: transparent;
        }

        .nav-channels-row::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.25);
            border-radius: 10px;
        }

        .nav-channels-inner {
            display: flex;
            align-items: center;
            gap: 4px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            height: var(--nav-height-channels);
            min-width: max-content;
        }

        .nav-channel-link {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 8px 18px;
            border-radius: var(--radius-full);
            color: var(--text-white-secondary);
            font-size: 0.92rem;
            font-weight: 550;
            white-space: nowrap;
            transition: all var(--transition);
            text-decoration: none;
            letter-spacing: 0.02em;
            position: relative;
        }

        .nav-channel-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-channel-link.active,
        .nav-channel-link[aria-current="page"] {
            background: rgba(255, 255, 255, 0.16);
            color: #fff;
            font-weight: 650;
        }

        .channel-badge {
            font-size: 0.68rem;
            font-weight: 700;
            background: #e85d3a;
            color: #fff;
            padding: 2px 7px;
            border-radius: var(--radius-full);
            letter-spacing: 0.03em;
            line-height: 1.3;
        }

        /* ========== HERO ========== */
        .hero-category {
            position: relative;
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center 40%;
            background-repeat: no-repeat;
            min-height: 440px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-category::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(160deg, rgba(12, 24, 40, 0.82) 0%, rgba(18, 36, 56, 0.68) 40%, rgba(26, 42, 56, 0.78) 100%);
            z-index: 1;
        }

        .hero-category-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 60px 0;
        }

        .hero-category-badge {
            display: inline-block;
            font-size: 0.84rem;
            font-weight: 700;
            letter-spacing: 0.07em;
            text-transform: uppercase;
            color: #fce0c0;
            background: rgba(212, 133, 60, 0.35);
            padding: 7px 18px;
            border-radius: var(--radius-full);
            margin-bottom: 18px;
            border: 1px solid rgba(212, 133, 60, 0.4);
        }

        .hero-category h1 {
            font-size: 2.8rem;
            font-weight: 780;
            color: #fff;
            line-height: 1.25;
            letter-spacing: -0.015em;
            margin-bottom: 18px;
            max-width: 700px;
        }

        .hero-category-subtitle {
            font-size: 1.14rem;
            color: var(--text-white-secondary);
            line-height: 1.7;
            max-width: 600px;
            margin-bottom: 30px;
        }

        .hero-category-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 26px;
            border-radius: var(--radius-full);
            font-weight: 650;
            font-size: 0.98rem;
            letter-spacing: 0.02em;
            transition: all var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: var(--shadow-md);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.45);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
            transform: translateY(-1px);
        }

        /* ========== CARDS GRID ========== */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 28px;
        }

        .card-topic {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-card);
            transition: all var(--transition-slow);
            display: flex;
            flex-direction: column;
        }

        .card-topic:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--border);
        }

        .card-topic-image {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #e8e4dc;
        }

        .card-topic-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .card-topic:hover .card-topic-image img {
            transform: scale(1.04);
        }

        .card-topic-image-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.5), transparent);
            pointer-events: none;
        }

        .card-topic-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 5px 12px;
            border-radius: var(--radius-full);
            letter-spacing: 0.04em;
            z-index: 2;
        }

        .card-topic-body {
            padding: 22px 24px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-topic-title {
            font-size: 1.18rem;
            font-weight: 700;
            color: var(--primary-dark);
            line-height: 1.4;
            margin-bottom: 10px;
            letter-spacing: -0.005em;
        }

        .card-topic-desc {
            font-size: 0.94rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 16px;
            flex: 1;
        }

        .card-topic-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.82rem;
            color: var(--text-light);
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
        }

        .card-topic-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .card-topic-meta i {
            font-size: 0.75rem;
            color: var(--accent);
        }

        .card-topic-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent);
            font-weight: 650;
            font-size: 0.9rem;
            margin-top: 6px;
            transition: all var(--transition);
        }

        .card-topic-link:hover {
            color: var(--accent-hover);
            gap: 10px;
        }

        .card-topic-link i {
            font-size: 0.7rem;
            transition: transform var(--transition);
        }

        .card-topic-link:hover i {
            transform: translateX(3px);
        }

        /* ========== FEATURES ROW ========== */
        .features-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 28px;
        }

        .feature-item {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-card);
            transition: all var(--transition-slow);
            text-align: center;
        }

        .feature-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--border);
        }

        .feature-icon-circle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 1.5rem;
            margin-bottom: 18px;
            transition: all var(--transition);
        }

        .feature-item:hover .feature-icon-circle {
            background: var(--accent);
            color: #fff;
            transform: scale(1.06);
        }

        .feature-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 10px;
            letter-spacing: -0.005em;
        }

        .feature-item p {
            font-size: 0.93rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ========== PROCESS STEPS ========== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
            position: relative;
        }

        .process-step {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-card);
            position: relative;
            transition: all var(--transition-slow);
        }

        .process-step:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .process-step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
            margin-bottom: 16px;
        }

        .process-step h4 {
            font-size: 1.04rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ========== STATS BANNER ========== */
        .stats-banner {
            background: var(--primary);
            color: #fff;
            padding: 60px 0;
            position: relative;
            overflow: hidden;
        }

        .stats-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.08;
            z-index: 1;
        }

        .stats-banner-content {
            position: relative;
            z-index: 2;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 30px;
            text-align: center;
        }

        .stat-item {
            padding: 10px;
        }

        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: #fce0c0;
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 0.95rem;
            color: var(--text-white-secondary);
            letter-spacing: 0.02em;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--bg-light);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-card);
            transition: all var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow);
            border-color: var(--border);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 20px 24px;
            background: transparent;
            font-size: 1.02rem;
            font-weight: 650;
            color: var(--primary-dark);
            text-align: left;
            cursor: pointer;
            gap: 14px;
            letter-spacing: -0.005em;
            border: none;
            outline: none;
            font-family: inherit;
        }

        .faq-question i {
            font-size: 0.85rem;
            color: var(--accent);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 24px;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            font-size: 0.94rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--primary-dark);
            color: #fff;
            padding: 70px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.06;
            z-index: 1;
        }

        .cta-section-content {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 750;
            letter-spacing: -0.01em;
            margin-bottom: 14px;
        }

        .cta-section p {
            font-size: 1.06rem;
            color: var(--text-white-secondary);
            max-width: 550px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 480px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-form input {
            flex: 1;
            min-width: 220px;
            padding: 13px 20px;
            border-radius: var(--radius-full);
            border: 2px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 0.95rem;
            font-family: inherit;
            outline: none;
            transition: all var(--transition);
            letter-spacing: 0.01em;
        }

        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .cta-form input:focus {
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.16);
            box-shadow: 0 0 0 4px rgba(212, 133, 60, 0.2);
        }

        .cta-form .btn-primary {
            padding: 13px 28px;
            font-size: 0.98rem;
            flex-shrink: 0;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #1a242e;
            color: var(--text-white-secondary);
            padding: 50px 0 30px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand {
            max-width: 340px;
        }

        .footer-logo {
            font-size: 1.3rem;
            font-weight: 750;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: #b0a99f;
        }

        .footer-col-title {
            font-size: 0.84rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.07em;
            color: #c5bdb2;
            margin-bottom: 16px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 0.93rem;
            color: #a0988e;
            transition: color var(--transition);
            text-decoration: none;
        }

        .footer-links a:hover {
            color: #e8dcc8;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            text-align: center;
            font-size: 0.84rem;
            color: #8a8278;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-category h1 {
                font-size: 2.3rem;
            }
            .cards-grid {
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
                gap: 22px;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .footer-brand {
                grid-column: 1 / -1;
                max-width: 100%;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 18px;
            }
            .container-narrow {
                padding: 0 18px;
            }
            .nav-top-row {
                padding: 0 16px;
                height: 50px;
            }
            .nav-logo {
                font-size: 1.05rem;
                gap: 7px;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.85rem;
            }
            .nav-cta-btn span {
                display: none;
            }
            .nav-cta-btn {
                padding: 8px 13px;
                font-size: 0.85rem;
            }
            .nav-channels-inner {
                padding: 0 12px;
                gap: 2px;
                height: 42px;
            }
            .nav-channel-link {
                padding: 6px 13px;
                font-size: 0.82rem;
                gap: 4px;
            }
            .hero-category {
                min-height: 340px;
            }
            .hero-category h1 {
                font-size: 1.8rem;
            }
            .hero-category-subtitle {
                font-size: 0.98rem;
            }
            .btn {
                padding: 11px 20px;
                font-size: 0.9rem;
            }
            .section-padding {
                padding: 48px 0;
            }
            .section-padding-lg {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .cards-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .features-row {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .process-steps {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-form {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-form input {
                min-width: auto;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: auto;
            }
            .faq-question {
                font-size: 0.94rem;
                padding: 16px 18px;
            }
            .faq-answer {
                padding: 0 18px;
            }
            .faq-item.active .faq-answer {
                padding: 0 18px 16px;
            }
        }

        @media (max-width: 520px) {
            .hero-category h1 {
                font-size: 1.5rem;
            }
            .hero-category-subtitle {
                font-size: 0.9rem;
            }
            .hero-category-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-category-actions .btn {
                justify-content: center;
            }
            .features-row {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .process-steps {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .cards-grid {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .section-subtitle {
                font-size: 0.9rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-number {
                font-size: 1.7rem;
            }
            .card-topic-body {
                padding: 16px 18px 20px;
            }
            .card-topic-title {
                font-size: 1.05rem;
            }
        }