/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary-500: #1e3a5f;
            --primary-600: #162d4a;
            --accent-500: #e63946;
            --accent-400: #fb923c;
            --gold: #f5b342;
            --green: #2d6a4f;
            --text-dark: #1a1a2e;
            --text-body: #334155;
            --text-muted: #6b7280;
            --bg-light: #f8fafc;
            --bg-card: #ffffff;
            --border-light: #e2e8f0;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
        }

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

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            transition: var(--transition);
        }

        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--accent-500);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        /* ===== Container ===== */
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        @media (min-width: 768px) {
            .container-custom {
                padding: 0 2rem;
            }
        }

        @media (min-width: 1024px) {
            .container-custom {
                padding: 0 2.5rem;
            }
        }

        /* ===== Navigation ===== */
        .navbar {
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.7);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: var(--transition);
        }

        .navbar .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 1rem;
        }

        .navbar .logo a {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary-500);
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .navbar .logo a i {
            color: var(--accent-500);
            font-size: 1.5rem;
        }

        .navbar .logo a span {
            background: linear-gradient(135deg, var(--primary-500), var(--accent-500));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* Search bar (center) */
        .navbar .search-wrap {
            flex: 1;
            max-width: 480px;
            margin: 0 1rem;
            position: relative;
        }

        .navbar .search-wrap input {
            width: 100%;
            padding: 0.6rem 1.2rem 0.6rem 2.8rem;
            border: 1.5px solid var(--border-light);
            border-radius: 50px;
            background: #f1f5f9;
            font-size: 0.9rem;
            color: var(--text-body);
            transition: var(--transition);
        }

        .navbar .search-wrap input::placeholder {
            color: var(--text-muted);
            opacity: 0.8;
        }

        .navbar .search-wrap input:focus {
            outline: none;
            border-color: var(--accent-500);
            background: #ffffff;
            box-shadow: 0 0 0 4px rgba(230, 57, 70, 0.1);
        }

        .navbar .search-wrap .search-icon {
            position: absolute;
            left: 1rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 0.9rem;
            pointer-events: none;
        }

        .navbar .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
        }

        .navbar .nav-links li a {
            padding: 0.5rem 1rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            transition: var(--transition);
        }

        .navbar .nav-links li a:hover {
            color: var(--accent-500);
            background: rgba(230, 57, 70, 0.06);
        }

        .navbar .nav-links li a.active {
            color: var(--accent-500);
            background: rgba(230, 57, 70, 0.08);
            font-weight: 600;
        }

        .navbar .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .navbar .nav-actions .btn-nav {
            padding: 0.5rem 1.2rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }

        .navbar .nav-actions .btn-nav-primary {
            background: var(--accent-500);
            color: #fff;
        }

        .navbar .nav-actions .btn-nav-primary:hover {
            background: var(--accent-600);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.3);
        }

        .navbar .nav-actions .btn-nav-outline {
            background: transparent;
            color: var(--primary-500);
            border: 1.5px solid var(--border-light);
        }

        .navbar .nav-actions .btn-nav-outline:hover {
            border-color: var(--accent-500);
            color: var(--accent-500);
        }

        .navbar .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--primary-500);
            cursor: pointer;
            padding: 0.25rem;
        }

        /* Mobile Nav */
        .mobile-nav {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border-light);
            padding: 0.75rem 1.5rem 1rem;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
        }

        .mobile-nav.open {
            display: block;
        }

        .mobile-nav ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
        }

        .mobile-nav ul li a {
            display: block;
            padding: 0.7rem 1rem;
            font-weight: 500;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }

        .mobile-nav ul li a:hover,
        .mobile-nav ul li a.active {
            color: var(--accent-500);
            background: rgba(230, 57, 70, 0.06);
        }

        .mobile-nav .mobile-search {
            margin-bottom: 0.75rem;
            position: relative;
        }

        .mobile-nav .mobile-search input {
            width: 100%;
            padding: 0.6rem 1rem 0.6rem 2.6rem;
            border: 1.5px solid var(--border-light);
            border-radius: 50px;
            background: #f1f5f9;
            font-size: 0.9rem;
        }

        .mobile-nav .mobile-search input:focus {
            outline: none;
            border-color: var(--accent-500);
        }

        .mobile-nav .mobile-search .search-icon {
            position: absolute;
            left: 1rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
        }

        @media (max-width: 768px) {
            .navbar .search-wrap {
                display: none;
            }

            .navbar .nav-links {
                display: none;
            }

            .navbar .nav-actions .btn-nav-outline {
                display: none;
            }

            .navbar .mobile-toggle {
                display: block;
            }

            .navbar .nav-inner {
                height: 64px;
            }
        }

        @media (min-width: 769px) {
            .mobile-nav {
                display: none !important;
            }
        }

        /* ===== Hero Section ===== */
        .hero-section {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #0a1628 0%, #1a2a4a 50%, #0d1f3c 100%);
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.35;
            mix-blend-mode: overlay;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(230, 57, 70, 0.12) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(245, 179, 66, 0.08) 0%, transparent 50%);
            pointer-events: none;
        }

        .hero-section .hero-content {
            position: relative;
            z-index: 2;
            max-width: 820px;
            padding: 3rem 0;
        }

        .hero-section .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(230, 57, 70, 0.15);
            backdrop-filter: blur(4px);
            border: 1px solid rgba(230, 57, 70, 0.25);
            padding: 0.4rem 1.2rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            color: #fca5a5;
            margin-bottom: 1.5rem;
            letter-spacing: 0.02em;
        }

        .hero-section .hero-badge i {
            font-size: 0.75rem;
            color: var(--gold);
        }

        .hero-section h1 {
            font-size: clamp(2.2rem, 6vw, 4rem);
            font-weight: 800;
            line-height: 1.15;
            color: #ffffff;
            letter-spacing: -0.02em;
            margin-bottom: 1.2rem;
        }

        .hero-section h1 .highlight {
            background: linear-gradient(135deg, #f5b342, #e63946);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-section .hero-sub {
            font-size: clamp(1rem, 2vw, 1.2rem);
            color: rgba(255, 255, 255, 0.75);
            max-width: 640px;
            line-height: 1.8;
            margin-bottom: 2rem;
        }

        .hero-section .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
        }

        .hero-section .hero-actions .btn-hero-primary {
            padding: 0.85rem 2.4rem;
            border-radius: 50px;
            background: var(--accent-500);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.35);
        }

        .hero-section .hero-actions .btn-hero-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(230, 57, 70, 0.45);
            background: #c62d39;
        }

        .hero-section .hero-actions .btn-hero-secondary {
            padding: 0.85rem 2.4rem;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(4px);
            color: #fff;
            font-weight: 500;
            font-size: 1rem;
            border: 1.5px solid rgba(255, 255, 255, 0.2);
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .hero-section .hero-actions .btn-hero-secondary:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: rgba(255, 255, 255, 0.35);
            transform: translateY(-2px);
        }

        .hero-section .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .hero-section .hero-stats .stat-item {
            text-align: left;
        }

        .hero-section .hero-stats .stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.01em;
        }

        .hero-section .hero-stats .stat-number .accent {
            color: var(--gold);
        }

        .hero-section .hero-stats .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 0.15rem;
        }

        @media (max-width: 640px) {
            .hero-section {
                min-height: 70vh;
            }
            .hero-section .hero-stats {
                gap: 1.25rem;
            }
            .hero-section .hero-stats .stat-number {
                font-size: 1.4rem;
            }
        }

        /* ===== Section Common ===== */
        .section-padding {
            padding: 5rem 0;
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 3rem 0;
            }
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-500);
            background: rgba(230, 57, 70, 0.08);
            padding: 0.3rem 1rem;
            border-radius: 50px;
            margin-bottom: 0.75rem;
        }

        .section-title {
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
            font-weight: 700;
            color: var(--primary-500);
            line-height: 1.25;
            letter-spacing: -0.01em;
            margin-bottom: 0.75rem;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            line-height: 1.7;
        }

        /* ===== Cards ===== */
        .card-base {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            overflow: hidden;
        }

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

        .card-base .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            display: block;
        }

        .card-base .card-body {
            padding: 1.5rem;
        }

        .card-base .card-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            color: var(--accent-500);
            background: rgba(230, 57, 70, 0.08);
            padding: 0.2rem 0.7rem;
            border-radius: 50px;
            margin-bottom: 0.6rem;
        }

        .card-base .card-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--primary-500);
            line-height: 1.35;
            margin-bottom: 0.5rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-base .card-text {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-base .card-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 0.75rem;
            padding-top: 0.75rem;
            border-top: 1px solid var(--border-light);
        }

        /* ===== Feature Cards ===== */
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 2rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .feature-card .icon-wrap {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.2rem;
            font-size: 1.4rem;
            color: #fff;
            transition: var(--transition);
        }

        .feature-card .icon-wrap.icon-red {
            background: var(--accent-500);
        }

        .feature-card .icon-wrap.icon-blue {
            background: var(--primary-500);
        }

        .feature-card .icon-wrap.icon-gold {
            background: var(--gold);
        }

        .feature-card .icon-wrap.icon-green {
            background: var(--green);
        }

        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--primary-500);
            margin-bottom: 0.5rem;
        }

        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== Data Stats ===== */
        .data-stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .data-stat-card {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            text-align: center;
            transition: var(--transition);
        }

        .data-stat-card:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }

        .data-stat-card .stat-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
        }

        .data-stat-card .stat-num .highlight-gold {
            color: var(--gold);
        }

        .data-stat-card .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 0.3rem;
        }

        @media (max-width: 768px) {
            .data-stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
            .data-stat-card .stat-num {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 480px) {
            .data-stats-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        /* ===== Topic / Cover Cards ===== */
        .topic-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            cursor: pointer;
        }

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

        .topic-card .topic-bg {
            position: absolute;
            inset: 0;
            object-fit: cover;
            width: 100%;
            height: 100%;
            transition: var(--transition);
        }

        .topic-card:hover .topic-bg {
            transform: scale(1.05);
        }

        .topic-card .topic-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.15) 60%, transparent 100%);
        }

        .topic-card .topic-info {
            position: relative;
            z-index: 2;
            padding: 1.8rem;
            width: 100%;
        }

        .topic-card .topic-info .topic-tag {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            color: #fff;
            background: var(--accent-500);
            padding: 0.2rem 0.8rem;
            border-radius: 50px;
            margin-bottom: 0.5rem;
        }

        .topic-card .topic-info h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 0.3rem;
        }

        .topic-card .topic-info p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.5;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
            margin-bottom: 0.75rem;
        }

        .faq-item:hover {
            border-color: #d1d9e6;
        }

        .faq-item .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 1.2rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 1rem;
            font-weight: 600;
            color: var(--primary-500);
            cursor: pointer;
            text-align: left;
            gap: 1rem;
        }

        .faq-item .faq-question i {
            font-size: 0.8rem;
            color: var(--accent-500);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }

        .faq-item .faq-answer {
            padding: 0 1.5rem 1.2rem;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }

        .faq-item .faq-answer.open {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-500) 0%, #0a1628 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }

        .cta-section .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 4rem 0;
        }

        .cta-section .cta-title {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.75rem;
        }

        .cta-section .cta-text {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 1.8rem;
            line-height: 1.7;
        }

        .cta-section .btn-cta {
            padding: 0.9rem 2.8rem;
            border-radius: 50px;
            background: var(--accent-500);
            color: #fff;
            font-weight: 600;
            font-size: 1.05rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.35);
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
        }

        .cta-section .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 32px rgba(230, 57, 70, 0.45);
            background: #c62d39;
        }

        /* ===== Review / Testimonial ===== */
        .review-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 1.8rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .review-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .review-card .review-stars {
            color: var(--gold);
            font-size: 0.9rem;
            margin-bottom: 0.75rem;
            letter-spacing: 0.05em;
        }

        .review-card .review-text {
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 1rem;
            font-style: italic;
        }

        .review-card .review-author {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .review-card .review-author .avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-500);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 0.9rem;
        }

        .review-card .review-author .name {
            font-weight: 600;
            color: var(--primary-500);
            font-size: 0.9rem;
        }

        .review-card .review-author .role {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ===== Footer ===== */
        .footer {
            background: #0a1628;
            color: rgba(255, 255, 255, 0.7);
            padding: 4rem 0 2rem;
        }

        .footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .footer .footer-brand i {
            color: var(--accent-500);
        }

        .footer .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
            margin-bottom: 1.5rem;
        }

        .footer .footer-heading {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 1rem;
        }

        .footer .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .footer .footer-links li a {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .footer .footer-links li a:hover {
            color: var(--accent-500);
            padding-left: 4px;
        }

        .footer .footer-bottom {
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer .footer-bottom .copyright a {
            color: rgba(255, 255, 255, 0.5);
        }

        .footer .footer-bottom .copyright a:hover {
            color: var(--accent-500);
        }

        .footer .footer-social {
            display: flex;
            gap: 0.75rem;
        }

        .footer .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .footer .footer-social a:hover {
            background: var(--accent-500);
            color: #fff;
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Utility ===== */
        .text-gradient {
            background: linear-gradient(135deg, var(--primary-500), var(--accent-500));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .bg-dark-section {
            background: linear-gradient(135deg, #0a1628, #1a2a4a);
        }

        .gap-grid {
            gap: 1.5rem;
        }

        /* ===== CMS List ===== */
        .cms-list-item {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            padding: 1rem 0;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .cms-list-item:last-child {
            border-bottom: none;
        }

        .cms-list-item:hover {
            padding-left: 0.5rem;
        }

        .cms-list-item .cms-thumb {
            width: 80px;
            height: 60px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: #e2e8f0;
        }

        .cms-list-item .cms-info {
            flex: 1;
            min-width: 0;
        }

        .cms-list-item .cms-info .cms-title {
            font-weight: 600;
            color: var(--primary-500);
            font-size: 0.95rem;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0.2rem;
        }

        .cms-list-item .cms-info .cms-title a {
            color: inherit;
        }

        .cms-list-item .cms-info .cms-title a:hover {
            color: var(--accent-500);
        }

        .cms-list-item .cms-info .cms-summary {
            font-size: 0.82rem;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0.2rem;
        }

        .cms-list-item .cms-info .cms-meta {
            font-size: 0.75rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .cms-list-item .cms-info .cms-meta .cms-category {
            display: inline-block;
            background: rgba(230, 57, 70, 0.08);
            color: var(--accent-500);
            padding: 0.05rem 0.5rem;
            border-radius: 50px;
            font-weight: 500;
        }

        .cms-empty {
            text-align: center;
            padding: 2.5rem 1rem;
            color: var(--text-muted);
            font-size: 0.95rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-light);
        }

        /* ===== Responsive Grid Overrides ===== */
        @media (max-width: 640px) {
            .topic-card {
                min-height: 220px;
            }
            .feature-card {
                padding: 1.5rem;
            }
        }

/* roulang page: article */
:root {
            --primary: #e63946;
            --primary-dark: #c11a2a;
            --primary-light: #ff6b7a;
            --secondary: #1d3557;
            --secondary-light: #2a4a7a;
            --accent: #f4a261;
            --accent-light: #f9c78a;
            --dark: #0b1a2a;
            --dark-card: #112233;
            --bg-light: #f8f9fa;
            --bg-section: #f0f2f5;
            --text: #1a1a2e;
            --text-light: #6c757d;
            --text-white: #f1f1f1;
            --border: #e0e0e0;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 8px 30px rgba(0,0,0,0.08);
            --shadow-hover: 0 16px 48px rgba(0,0,0,0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            color: var(--text);
            background: #fff;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        img { max-width: 100%; height: auto; display: block; }
        .container-custom { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
        @media (max-width: 768px) { .container-custom { padding: 0 16px; } }
        /* Navbar */
        .navbar {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            background: rgba(255,255,255,0.96); backdrop-filter: blur(18px) saturate(180%);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            transition: var(--transition);
        }
        .navbar.scrolled { box-shadow: 0 4px 30px rgba(0,0,0,0.08); }
        .nav-inner {
            display: flex; align-items: center; justify-content: space-between;
            height: 72px; gap: 16px;
        }
        .logo a {
            display: flex; align-items: center; gap: 10px;
            font-size: 1.35rem; font-weight: 800;
            color: var(--secondary); letter-spacing: -0.3px;
        }
        .logo a i { color: var(--primary); font-size: 1.5rem; }
        .logo a span { background: linear-gradient(135deg, var(--secondary), var(--primary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .search-wrap {
            flex: 1; max-width: 480px; position: relative;
            display: none;
        }
        .search-wrap .search-icon {
            position: absolute; left: 16px; top: 50%; transform: translateY(-50%);
            color: var(--text-light); font-size: 0.95rem; pointer-events: none;
        }
        .search-wrap input {
            width: 100%; height: 44px; padding: 0 20px 0 46px;
            border: 2px solid var(--border); border-radius: 50px;
            background: var(--bg-light); font-size: 0.92rem;
            transition: var(--transition); outline: none;
        }
        .search-wrap input:focus { border-color: var(--primary); background: #fff; box-shadow: 0 0 0 4px rgba(230,57,70,0.1); }
        .nav-links { display: flex; align-items: center; gap: 8px; list-style: none; }
        .nav-links li a {
            padding: 8px 18px; border-radius: 50px;
            font-size: 0.92rem; font-weight: 600; color: var(--text);
            transition: var(--transition); white-space: nowrap;
        }
        .nav-links li a:hover { background: rgba(230,57,70,0.08); color: var(--primary); }
        .nav-links li a.active { background: var(--primary); color: #fff; }
        .nav-actions { display: flex; align-items: center; gap: 10px; }
        .btn-nav { padding: 8px 18px; border-radius: 50px; font-size: 0.9rem; font-weight: 600; border: none; cursor: pointer; transition: var(--transition); display: flex; align-items: center; gap: 6px; }
        .btn-nav-outline { background: transparent; border: 2px solid var(--border); color: var(--text); }
        .btn-nav-outline:hover { border-color: var(--primary); color: var(--primary); }
        .btn-nav-primary { background: var(--primary); color: #fff; }
        .btn-nav-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(230,57,70,0.35); }
        .mobile-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--secondary); cursor: pointer; padding: 4px; }
        .mobile-nav {
            display: none; flex-direction: column; gap: 8px;
            padding: 16px 24px 24px; background: #fff; border-top: 1px solid var(--border);
        }
        .mobile-nav.open { display: flex; }
        .mobile-nav .mobile-search { position: relative; margin-bottom: 8px; }
        .mobile-nav .mobile-search input {
            width: 100%; height: 44px; padding: 0 20px 0 44px;
            border: 2px solid var(--border); border-radius: 50px;
            background: var(--bg-light); font-size: 0.92rem; outline: none;
        }
        .mobile-nav .mobile-search .search-icon { left: 16px; top: 50%; transform: translateY(-50%); position: absolute; color: var(--text-light); }
        .mobile-nav ul { list-style: none; display: flex; flex-direction: column; gap: 4px; }
        .mobile-nav ul li a { display: block; padding: 12px 16px; border-radius: var(--radius-sm); font-size: 1rem; font-weight: 500; color: var(--text); transition: var(--transition); }
        .mobile-nav ul li a:hover { background: rgba(230,57,70,0.08); color: var(--primary); }
        .mobile-nav ul li a.active { background: var(--primary); color: #fff; }
        @media (max-width: 1024px) { .search-wrap { display: none; } .mobile-toggle { display: block; } .nav-links { display: none; } .nav-actions .btn-nav-outline { display: none; } }
        @media (min-width: 1025px) { .search-wrap { display: block; } .mobile-nav { display: none !important; } }
        /* Article Hero */
        .article-hero {
            position: relative; margin-top: 72px; padding: 80px 0 72px;
            background: var(--dark); overflow: hidden; min-height: 320px;
            display: flex; align-items: center;
        }
        .article-hero-bg {
            position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.35; transform: scale(1.05);
        }
        .article-hero-overlay {
            position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(11,26,42,0.92) 0%, rgba(29,53,87,0.75) 50%, rgba(230,57,70,0.25) 100%);
        }
        .article-hero-content { position: relative; z-index: 2; max-width: 860px; }
        .article-hero .breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 0.88rem; color: rgba(255,255,255,0.65); margin-bottom: 20px; }
        .article-hero .breadcrumb a { color: rgba(255,255,255,0.7); }
        .article-hero .breadcrumb a:hover { color: #fff; }
        .article-hero .breadcrumb .sep { color: rgba(255,255,255,0.4); }
        .article-hero .breadcrumb .current { color: rgba(255,255,255,0.9); }
        .article-hero h1 { font-size: clamp(1.8rem, 4vw, 3rem); font-weight: 800; color: #fff; line-height: 1.2; margin-bottom: 16px; letter-spacing: -0.5px; }
        .article-hero .meta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 20px; font-size: 0.92rem; color: rgba(255,255,255,0.7); }
        .article-hero .meta-row .tag { display: inline-flex; align-items: center; gap: 6px; padding: 4px 16px; border-radius: 50px; background: rgba(230,57,70,0.25); color: #fff; font-weight: 500; font-size: 0.82rem; }
        .article-hero .meta-row i { font-size: 0.8rem; }
        @media (max-width: 768px) { .article-hero { padding: 60px 0 48px; min-height: 240px; } .article-hero h1 { font-size: 1.6rem; } }
        /* Article Main */
        .article-main { padding: 48px 0 64px; background: #fff; }
        .article-layout { display: grid; grid-template-columns: 1fr 320px; gap: 48px; }
        .article-body { font-size: 1.05rem; line-height: 1.9; color: var(--text); }
        .article-body p { margin-bottom: 1.4em; }
        .article-body h2, .article-body h3, .article-body h4 { margin-top: 1.8em; margin-bottom: 0.6em; font-weight: 700; color: var(--secondary); }
        .article-body h2 { font-size: 1.6rem; }
        .article-body h3 { font-size: 1.3rem; }
        .article-body ul, .article-body ol { margin-bottom: 1.4em; padding-left: 1.6em; }
        .article-body li { margin-bottom: 0.4em; }
        .article-body img { border-radius: var(--radius-sm); margin: 1.6em 0; box-shadow: var(--shadow); }
        .article-body blockquote { border-left: 4px solid var(--primary); padding: 16px 24px; margin: 1.6em 0; background: var(--bg-light); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; font-style: italic; color: var(--text-light); }
        .article-body a { color: var(--primary); border-bottom: 1px solid transparent; }
        .article-body a:hover { border-bottom-color: var(--primary); }
        .article-body .cms-content { width: 100%; }
        .article-body .cms-content * { max-width: 100%; }
        .article-sidebar { position: sticky; top: 100px; align-self: start; }
        .sidebar-card { background: var(--bg-light); border-radius: var(--radius); padding: 28px; margin-bottom: 24px; border: 1px solid var(--border); }
        .sidebar-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--secondary); margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
        .sidebar-card h3 i { color: var(--primary); }
        .sidebar-card .info-item { display: flex; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 0.92rem; color: var(--text-light); }
        .sidebar-card .info-item:last-child { border-bottom: none; }
        .sidebar-card .info-item i { width: 20px; color: var(--primary); font-size: 0.95rem; }
        .sidebar-card .info-item strong { color: var(--text); font-weight: 600; margin-right: 4px; }
        .sidebar-share { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
        .sidebar-share a { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 50%; background: var(--border); color: var(--text-light); transition: var(--transition); font-size: 1.1rem; }
        .sidebar-share a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
        @media (max-width: 1024px) { .article-layout { grid-template-columns: 1fr; } .article-sidebar { position: static; display: grid; grid-template-columns: 1fr 1fr; gap: 20px; } .sidebar-card { margin-bottom: 0; } }
        @media (max-width: 640px) { .article-sidebar { grid-template-columns: 1fr; } }
        /* Related */
        .related-section { background: var(--bg-section); padding: 64px 0; }
        .related-section .section-title { font-size: 1.8rem; font-weight: 800; color: var(--secondary); margin-bottom: 8px; }
        .related-section .section-sub { color: var(--text-light); margin-bottom: 36px; font-size: 1rem; }
        .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .related-card { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: var(--transition); border: 1px solid rgba(0,0,0,0.04); }
        .related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
        .related-card .card-img { height: 180px; background: var(--dark-card); position: relative; overflow: hidden; }
        .related-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
        .related-card:hover .card-img img { transform: scale(1.06); }
        .related-card .card-body { padding: 20px 24px 24px; }
        .related-card .card-body h4 { font-size: 1.08rem; font-weight: 700; color: var(--secondary); margin-bottom: 8px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .related-card .card-body p { font-size: 0.88rem; color: var(--text-light); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 12px; }
        .related-card .card-body .card-meta { font-size: 0.8rem; color: var(--text-light); display: flex; align-items: center; gap: 12px; }
        .related-card .card-body .card-meta i { color: var(--primary); }
        @media (max-width: 1024px) { .related-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 640px) { .related-grid { grid-template-columns: 1fr; } .related-card .card-img { height: 160px; } }
        /* CTA */
        .article-cta { background: linear-gradient(135deg, var(--secondary), var(--dark)); padding: 56px 0; text-align: center; }
        .article-cta h2 { font-size: 1.8rem; font-weight: 800; color: #fff; margin-bottom: 12px; }
        .article-cta p { color: rgba(255,255,255,0.7); max-width: 600px; margin: 0 auto 24px; font-size: 1.02rem; }
        .article-cta .btn-cta { display: inline-flex; align-items: center; gap: 10px; padding: 14px 36px; border-radius: 50px; background: var(--primary); color: #fff; font-weight: 700; font-size: 1.05rem; transition: var(--transition); border: none; cursor: pointer; }
        .article-cta .btn-cta:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 10px 32px rgba(230,57,70,0.4); }
        /* Footer */
        .footer { background: var(--dark); color: rgba(255,255,255,0.8); padding: 64px 0 32px; }
        .footer .footer-brand { display: flex; align-items: center; gap: 10px; font-size: 1.4rem; font-weight: 800; color: #fff; margin-bottom: 16px; }
        .footer .footer-brand i { color: var(--primary); }
        .footer .footer-desc { font-size: 0.92rem; color: rgba(255,255,255,0.6); line-height: 1.7; margin-bottom: 20px; max-width: 360px; }
        .footer .footer-social { display: flex; gap: 12px; }
        .footer .footer-social a { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 50%; background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.7); font-size: 1.1rem; transition: var(--transition); }
        .footer .footer-social a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
        .footer-heading { font-size: 1.05rem; font-weight: 700; color: #fff; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
        .footer-heading::after { content: ''; position: absolute; bottom: 0; left: 0; width: 36px; height: 3px; background: var(--primary); border-radius: 4px; }
        .footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
        .footer-links li a { color: rgba(255,255,255,0.65); font-size: 0.9rem; display: flex; align-items: center; gap: 8px; transition: var(--transition); }
        .footer-links li a:hover { color: #fff; padding-left: 4px; }
        .footer-links li a i { color: var(--primary); font-size: 0.7rem; }
        .footer-bottom { margin-top: 40px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.08); display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; font-size: 0.84rem; color: rgba(255,255,255,0.5); }
        .footer-bottom a { color: rgba(255,255,255,0.6); }
        .footer-bottom a:hover { color: #fff; }
        @media (max-width: 768px) { .footer { padding: 48px 0 24px; } .footer-bottom { flex-direction: column; text-align: center; } }
        /* Not found */
        .not-found-box { text-align: center; padding: 60px 20px; background: var(--bg-light); border-radius: var(--radius); border: 1px solid var(--border); }
        .not-found-box i { font-size: 3rem; color: var(--text-light); margin-bottom: 16px; }
        .not-found-box h2 { font-size: 1.5rem; color: var(--secondary); margin-bottom: 12px; }
        .not-found-box p { color: var(--text-light); margin-bottom: 20px; }
        .not-found-box a { display: inline-flex; align-items: center; gap: 8px; padding: 10px 28px; border-radius: 50px; background: var(--primary); color: #fff; font-weight: 600; transition: var(--transition); }
        .not-found-box a:hover { background: var(--primary-dark); transform: translateY(-2px); }
        /* Animations */
        @keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
        .animate-fade-up { animation: fadeUp 0.6s ease forwards; }
        .delay-1 { animation-delay: 0.1s; }
        .delay-2 { animation-delay: 0.2s; }
        .delay-3 { animation-delay: 0.3s; }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #DC2626;
            --primary-dark: #B91C1C;
            --primary-light: #FCA5A5;
            --accent: #F59E0B;
            --accent-dark: #D97706;
            --dark: #0F172A;
            --dark-alt: #1E293B;
            --light-bg: #F8FAFC;
            --card-bg: #FFFFFF;
            --text-primary: #0F172A;
            --text-secondary: #475569;
            --text-light: #94A3B8;
            --border-color: #E2E8F0;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.10);
            --shadow-lg: 0 10px 30px rgba(0,0,0,0.12);
            --shadow-xl: 0 20px 50px rgba(0,0,0,0.18);
            --radius-sm: 0.375rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.5rem;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            color: var(--text-primary);
            background: var(--light-bg);
            line-height: 1.6;
            font-size: 16px;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        button { cursor: pointer; font-family: inherit; border: none; background: none; }
        input, textarea { font-family: inherit; outline: none; }
        ul { list-style: none; }

        /* ===== Container ===== */
        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        @media (min-width: 768px) {
            .container-custom { padding: 0 2rem; }
        }
        @media (min-width: 1024px) {
            .container-custom { padding: 0 2.5rem; }
        }

        /* ===== Navbar ===== */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: var(--dark);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            box-shadow: 0 2px 20px rgba(0,0,0,0.3);
            transition: var(--transition);
        }
        .navbar .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 1rem;
        }
        .navbar .logo a {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.01em;
        }
        .navbar .logo a i { color: var(--primary); font-size: 1.4rem; }
        .navbar .logo a span { background: linear-gradient(135deg, #fff 60%, var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

        /* Search */
        .search-wrap {
            flex: 1;
            max-width: 400px;
            position: relative;
            display: none;
        }
        @media (min-width: 900px) { .search-wrap { display: block; } }
        .search-wrap input {
            width: 100%;
            padding: 0.6rem 1rem 0.6rem 2.5rem;
            border-radius: 50px;
            border: 1px solid rgba(255,255,255,0.12);
            background: rgba(255,255,255,0.06);
            color: #fff;
            font-size: 0.875rem;
            transition: var(--transition);
        }
        .search-wrap input::placeholder { color: var(--text-light); }
        .search-wrap input:focus { border-color: var(--primary); background: rgba(255,255,255,0.10); box-shadow: 0 0 0 3px rgba(220,38,38,0.15); }
        .search-wrap .search-icon {
            position: absolute;
            left: 0.85rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-light);
            font-size: 0.9rem;
        }

        /* Nav links */
        .nav-links {
            display: none;
            align-items: center;
            gap: 0.25rem;
        }
        @media (min-width: 768px) { .nav-links { display: flex; } }
        .nav-links li a {
            display: block;
            padding: 0.5rem 1rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255,255,255,0.7);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            letter-spacing: 0.01em;
        }
        .nav-links li a:hover { color: #fff; background: rgba(255,255,255,0.06); }
        .nav-links li a.active { color: #fff; background: var(--primary); box-shadow: 0 2px 10px rgba(220,38,38,0.3); }

        /* Nav actions */
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-nav {
            padding: 0.5rem 1rem;
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-weight: 500;
            transition: var(--transition);
            color: #fff;
        }
        .btn-nav-outline {
            background: transparent;
            border: 1px solid rgba(255,255,255,0.15);
            padding: 0.5rem 0.75rem;
            border-radius: 50%;
        }
        .btn-nav-outline:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.3); }
        .btn-nav-primary { background: var(--primary); border-radius: 50px; padding: 0.5rem 1.25rem; }
        .btn-nav-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 15px rgba(220,38,38,0.35); }
        .mobile-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            color: #fff;
            font-size: 1.3rem;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .mobile-toggle:hover { background: rgba(255,255,255,0.06); }
        @media (min-width: 768px) { .mobile-toggle { display: none; } }

        /* Mobile Nav */
        .mobile-nav {
            display: none;
            background: var(--dark-alt);
            border-top: 1px solid rgba(255,255,255,0.06);
            padding: 1rem 1.25rem 1.5rem;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }
        .mobile-nav.open {
            display: block;
            max-height: 400px;
        }
        .mobile-nav .mobile-search {
            position: relative;
            margin-bottom: 1rem;
        }
        .mobile-nav .mobile-search input {
            width: 100%;
            padding: 0.6rem 1rem 0.6rem 2.5rem;
            border-radius: 50px;
            border: 1px solid rgba(255,255,255,0.12);
            background: rgba(255,255,255,0.06);
            color: #fff;
            font-size: 0.875rem;
        }
        .mobile-nav .mobile-search input::placeholder { color: var(--text-light); }
        .mobile-nav .mobile-search .search-icon {
            position: absolute;
            left: 0.85rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-light);
        }
        .mobile-nav ul li a {
            display: block;
            padding: 0.7rem 0.5rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255,255,255,0.7);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            border-bottom: 1px solid rgba(255,255,255,0.04);
        }
        .mobile-nav ul li a:hover { color: #fff; background: rgba(255,255,255,0.04); }
        .mobile-nav ul li a.active { color: var(--primary); }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 80vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 8rem 0 4rem;
            background: var(--dark);
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.25;
            transform: scale(1.05);
            animation: heroZoom 20s ease-in-out infinite alternate;
        }
        @keyframes heroZoom {
            0% { transform: scale(1.05); }
            100% { transform: scale(1.15); }
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,23,42,0.92) 0%, rgba(15,23,42,0.70) 50%, rgba(220,38,38,0.15) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 850px;
            padding: 0 1.25rem;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.4rem 1.2rem;
            border-radius: 50px;
            background: rgba(220,38,38,0.15);
            border: 1px solid rgba(220,38,38,0.25);
            color: var(--primary-light);
            font-size: 0.8rem;
            font-weight: 500;
            letter-spacing: 0.03em;
            margin-bottom: 1.5rem;
            backdrop-filter: blur(4px);
        }
        .hero-badge i { font-size: 0.7rem; }
        .hero-title {
            font-size: clamp(2.2rem, 7vw, 4.2rem);
            font-weight: 800;
            line-height: 1.1;
            color: #fff;
            margin-bottom: 1.2rem;
            letter-spacing: -0.02em;
        }
        .hero-title span {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-sub {
            font-size: clamp(0.95rem, 2vw, 1.2rem);
            color: rgba(255,255,255,0.7);
            max-width: 650px;
            margin: 0 auto 2rem;
            line-height: 1.7;
        }
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
            gap: 1.5rem;
            max-width: 600px;
            margin: 2.5rem auto 0;
        }
        .hero-stat {
            text-align: center;
            padding: 1rem 0.5rem;
            border-radius: var(--radius-md);
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.06);
        }
        .hero-stat .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .hero-stat .label {
            font-size: 0.75rem;
            color: rgba(255,255,255,0.5);
            margin-top: 0.25rem;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 1rem;
            margin-top: 2rem;
        }
        .btn-hero {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.85rem 2rem;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-hero-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 20px rgba(220,38,38,0.35);
        }
        .btn-hero-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(220,38,38,0.40); }
        .btn-hero-secondary {
            background: rgba(255,255,255,0.08);
            color: #fff;
            border: 1px solid rgba(255,255,255,0.12);
        }
        .btn-hero-secondary:hover { background: rgba(255,255,255,0.14); transform: translateY(-2px); }

        /* ===== Section Common ===== */
        .section-padding { padding: 5rem 0; }
        @media (max-width: 767px) { .section-padding { padding: 3rem 0; } }
        .section-title {
            font-size: clamp(1.5rem, 3.5vw, 2.2rem);
            font-weight: 700;
            text-align: center;
            margin-bottom: 0.75rem;
            color: var(--text-primary);
            letter-spacing: -0.01em;
        }
        .section-sub {
            text-align: center;
            color: var(--text-secondary);
            max-width: 620px;
            margin: 0 auto 3rem;
            font-size: 1rem;
            line-height: 1.7;
        }
        .section-sub strong { color: var(--primary); font-weight: 600; }

        /* ===== Cards ===== */
        .card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            overflow: hidden;
        }
        .card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
        .card-body { padding: 1.75rem; }
        .card-icon {
            width: 54px;
            height: 54px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #fff;
            margin-bottom: 1rem;
        }
        .card-icon.red { background: var(--primary); }
        .card-icon.gold { background: var(--accent); }
        .card-icon.blue { background: #3B82F6; }
        .card-icon.green { background: #10B981; }
        .card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }
        .card p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.65;
        }

        /* ===== Advantage Grid ===== */
        .adv-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
        }

        /* ===== Scene Cards ===== */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 1.5rem;
        }
        .scene-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .scene-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
        .scene-card .scene-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.2rem;
            font-size: 1.5rem;
            color: #fff;
        }
        .scene-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; }
        .scene-card p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; }

        /* ===== Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            position: relative;
        }
        .step-item {
            text-align: center;
            position: relative;
        }
        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 1.2rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            box-shadow: 0 4px 15px rgba(220,38,38,0.25);
        }
        .step-item h4 { font-size: 1rem; font-weight: 700; margin-bottom: 0.4rem; }
        .step-item p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.5; max-width: 220px; margin: 0 auto; }
        .step-connector {
            display: none;
            position: absolute;
            top: 24px;
            left: calc(50% + 40px);
            width: calc(100% - 80px);
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0.3;
        }
        @media (min-width: 900px) {
            .steps-grid { grid-template-columns: repeat(4, 1fr); }
            .step-connector { display: block; }
        }

        /* ===== Featured Guide Cards ===== */
        .featured-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }
        @media (min-width: 640px) { .featured-grid { grid-template-columns: 1fr 1fr; } }
        @media (min-width: 1024px) { .featured-grid { grid-template-columns: 1.2fr 0.8fr 0.8fr; } }
        .featured-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--card-bg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .featured-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
        .featured-card .fc-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
        }
        .featured-card .fc-body { padding: 1.25rem 1.5rem 1.5rem; }
        .featured-card .fc-tag {
            display: inline-block;
            padding: 0.2rem 0.75rem;
            border-radius: 50px;
            font-size: 0.7rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            margin-bottom: 0.6rem;
        }
        .fc-tag.red { background: rgba(220,38,38,0.10); color: var(--primary); }
        .fc-tag.gold { background: rgba(245,158,11,0.10); color: var(--accent-dark); }
        .fc-tag.blue { background: rgba(59,130,246,0.10); color: #2563EB; }
        .featured-card h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.3rem; }
        .featured-card p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.5; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 800px; margin: 0 auto; }
        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 1.25rem 0;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            padding: 0.25rem 0;
            transition: var(--transition);
        }
        .faq-question:hover { color: var(--primary); }
        .faq-question i {
            font-size: 0.85rem;
            color: var(--text-light);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-question.open i { transform: rotate(180deg); color: var(--primary); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .faq-answer.open {
            max-height: 300px;
            padding-top: 0.75rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--dark);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 4rem 1.25rem;
        }
        .cta-inner h2 {
            font-size: clamp(1.5rem, 3.5vw, 2.2rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.75rem;
        }
        .cta-inner p {
            color: rgba(255,255,255,0.65);
            max-width: 550px;
            margin: 0 auto 2rem;
            font-size: 1rem;
            line-height: 1.7;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.9rem 2.5rem;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 25px rgba(220,38,38,0.35);
            transition: var(--transition);
        }
        .btn-cta:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 35px rgba(220,38,38,0.40); }

        /* ===== Footer ===== */
        .footer {
            background: var(--dark);
            border-top: 1px solid rgba(255,255,255,0.06);
            padding: 3.5rem 0 1.5rem;
            color: rgba(255,255,255,0.7);
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .footer-brand i { color: var(--primary); }
        .footer-desc { font-size: 0.85rem; line-height: 1.6; margin-bottom: 1.25rem; max-width: 300px; }
        .footer-social { display: flex; gap: 0.75rem; }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            color: rgba(255,255,255,0.6);
            font-size: 1rem;
            transition: var(--transition);
        }
        .footer-social a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
        .footer-heading {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }
        .footer-links li { margin-bottom: 0.5rem; }
        .footer-links li a {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.55);
            display: flex;
            align-items: center;
            gap: 0.4rem;
            transition: var(--transition);
        }
        .footer-links li a:hover { color: #fff; padding-left: 0.25rem; }
        .footer-bottom {
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.06);
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255,255,255,0.35);
        }

        /* ===== Misc Utilities ===== */
        .bg-dark-section { background: var(--dark-alt); }
        .bg-light-section { background: var(--light-bg); }
        .text-gradient {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .badge-pill {
            display: inline-block;
            padding: 0.2rem 0.8rem;
            border-radius: 50px;
            font-size: 0.7rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        /* ===== Responsive ===== */
        @media (max-width: 767px) {
            .hero-section { min-height: 70vh; padding: 6rem 0 3rem; }
            .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
            .hero-stat .num { font-size: 1.4rem; }
            .hero-actions { flex-direction: column; align-items: stretch; }
            .btn-hero { justify-content: center; }
            .adv-grid { grid-template-columns: 1fr; }
            .scene-grid { grid-template-columns: 1fr; }
            .steps-grid { grid-template-columns: 1fr 1fr; gap: 1.5rem; }
            .featured-grid { grid-template-columns: 1fr; }
            .footer .grid-cols-4 { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 480px) {
            .steps-grid { grid-template-columns: 1fr; }
            .footer .grid-cols-4 { grid-template-columns: 1fr; }
            .nav-actions .btn-nav-outline { display: none; }
        }
        @media (min-width: 768px) and (max-width: 1023px) {
            .adv-grid { grid-template-columns: 1fr 1fr; }
            .scene-grid { grid-template-columns: 1fr 1fr; }
            .featured-grid { grid-template-columns: 1fr 1fr; }
        }

        /* ===== Accessibility ===== */
        a:focus-visible, button:focus-visible, input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        @media (prefers-reduced-motion: reduce) {
            *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
        }