/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #E8491D;
            --primary-dark: #C73A12;
            --primary-light: #FDE8E0;
            --secondary: #1A1A2E;
            --secondary-light: #16213E;
            --accent: #F5A623;
            --bg: #F8F9FA;
            --bg-alt: #FFFFFF;
            --text: #1E1E2C;
            --text-weak: #6B7280;
            --text-white: #FFFFFF;
            --border: #E5E7EB;
            --border-light: #F0F0F5;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
            --font: 'Segoe UI','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
            --container: 1200px;
            --gap: 24px;
            --section-space: 80px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a { color: inherit; text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            transition: all var(--transition);
        }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text); }
        h1 { font-size: 2.8rem; }
        h2 { font-size: 2.2rem; }
        h3 { font-size: 1.5rem; }

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

        /* ===== Header / Nav ===== */
        .site-header {
            background: var(--bg-alt);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0,0,0,0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 var(--gap);
        }
        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .logo i { font-size: 1.8rem; color: var(--primary); }
        .logo span { color: var(--secondary); }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-list a {
            padding: 8px 18px;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text);
            transition: all var(--transition);
            position: relative;
        }
        .nav-list a:hover { background: var(--primary-light); color: var(--primary); }
        .nav-list a.active {
            background: var(--primary);
            color: var(--text-white);
            box-shadow: 0 4px 12px rgba(232,73,29,0.3);
        }
        .nav-list a.active:hover { background: var(--primary-dark); color: var(--text-white); }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-cta .btn-primary {
            padding: 10px 28px;
            border-radius: 30px;
            background: var(--primary);
            color: var(--text-white);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            box-shadow: 0 4px 14px rgba(232,73,29,0.35);
        }
        .nav-cta .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232,73,29,0.4);
        }

        .nav-toggle { display: none; background: none; font-size: 1.6rem; color: var(--text); cursor: pointer; padding: 4px; }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 580px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 80px var(--gap) 60px;
            background: var(--secondary);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.55;
            mix-blend-mode: overlay;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26,26,46,0.85) 0%, rgba(22,33,62,0.75) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(232,73,29,0.85);
            color: var(--text-white);
            padding: 6px 20px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
        }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
            margin-bottom: 16px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.3);
        }
        .hero h1 i { color: var(--accent); }
        .hero p {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.85);
            max-width: 640px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .hero-actions .btn-primary {
            padding: 16px 40px;
            border-radius: 30px;
            background: var(--primary);
            color: var(--text-white);
            font-weight: 700;
            font-size: 1.1rem;
            transition: all var(--transition);
            box-shadow: 0 8px 28px rgba(232,73,29,0.45);
        }
        .hero-actions .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(232,73,29,0.55);
        }
        .hero-actions .btn-outline {
            padding: 16px 40px;
            border-radius: 30px;
            background: transparent;
            color: var(--text-white);
            font-weight: 600;
            font-size: 1.1rem;
            border: 2px solid rgba(255,255,255,0.4);
            transition: all var(--transition);
        }
        .hero-actions .btn-outline:hover {
            border-color: var(--primary);
            background: rgba(232,73,29,0.2);
            transform: translateY(-3px);
        }

        /* ===== Section ===== */
        .section { padding: var(--section-space) 0; }
        .section-bg-alt { background: var(--bg-alt); }
        .section-bg-dark { background: var(--secondary); color: var(--text-white); }
        .section-bg-dark h2,
        .section-bg-dark h3 { color: var(--text-white); }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 { margin-bottom: 12px; }
        .section-header p {
            color: var(--text-weak);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto;
        }
        .section-header.light p { color: rgba(255,255,255,0.7); }

        /* ===== Cards ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gap);
        }
        .card {
            background: var(--bg-alt);
            border-radius: var(--radius);
            padding: 32px 28px;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .card-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin-bottom: 18px;
        }
        .card h3 { font-size: 1.25rem; margin-bottom: 10px; }
        .card p { color: var(--text-weak); font-size: 0.95rem; line-height: 1.6; }
        .card .badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-top: 12px;
        }

        /* ===== Cover Card ===== */
        .cover-card {
            background: var(--bg-alt);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .cover-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .cover-card .cover-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: var(--radius) var(--radius) 0 0;
        }
        .cover-card .cover-body {
            padding: 20px 22px 24px;
        }
        .cover-card .cover-body h3 { font-size: 1.15rem; margin-bottom: 8px; }
        .cover-card .cover-body p { color: var(--text-weak); font-size: 0.9rem; line-height: 1.6; }
        .cover-card .cover-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 10px;
        }

        /* ===== List / CMS ===== */
        .cms-list { display: flex; flex-direction: column; gap: 16px; }
        .cms-item {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--bg-alt);
            padding: 18px 24px;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .cms-item:hover {
            transform: translateX(6px);
            border-color: var(--primary-light);
            box-shadow: var(--shadow-lg);
        }
        .cms-item .cms-cat {
            background: var(--primary-light);
            color: var(--primary);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            white-space: nowrap;
        }
        .cms-item .cms-title {
            flex: 1;
            font-weight: 600;
            color: var(--text);
            font-size: 1rem;
            line-height: 1.4;
        }
        .cms-item .cms-title a:hover { color: var(--primary); }
        .cms-item .cms-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            color: var(--text-weak);
            font-size: 0.85rem;
            white-space: nowrap;
        }
        .cms-empty {
            text-align: center;
            padding: 48px 24px;
            color: var(--text-weak);
            background: var(--bg-alt);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
        }
        .cms-empty i { font-size: 2.4rem; margin-bottom: 12px; color: var(--border); }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gap);
        }
        .stat-item {
            text-align: center;
            padding: 32px 16px;
            background: rgba(255,255,255,0.06);
            border-radius: var(--radius);
            border: 1px solid rgba(255,255,255,0.1);
            transition: all var(--transition);
        }
        .stat-item:hover {
            background: rgba(255,255,255,0.1);
            transform: translateY(-4px);
        }
        .stat-item .stat-num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 0.95rem;
            color: rgba(255,255,255,0.7);
            margin-top: 6px;
        }

        /* ===== Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gap);
        }
        .step-item {
            text-align: center;
            padding: 36px 24px;
            background: var(--bg-alt);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            position: relative;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .step-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
        .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--text-white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
            margin: 0 auto 16px;
        }
        .step-item h3 { font-size: 1.1rem; margin-bottom: 8px; }
        .step-item p { color: var(--text-weak); font-size: 0.9rem; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--bg-alt);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover { border-color: var(--primary-light); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            user-select: none;
        }
        .faq-question i { color: var(--primary); transition: transform var(--transition); font-size: 1.2rem; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition), padding var(--transition);
            padding: 0 24px;
            color: var(--text-weak);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 72px 0;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            text-align: center;
            color: var(--text-white);
        }
        .cta-section h2 { font-size: 2.4rem; margin-bottom: 12px; color: var(--text-white); }
        .cta-section p { font-size: 1.1rem; opacity: 0.9; margin-bottom: 28px; max-width: 600px; margin-left: auto; margin-right: auto; }
        .cta-section .btn-cta {
            padding: 16px 48px;
            border-radius: 30px;
            background: var(--text-white);
            color: var(--primary);
            font-weight: 700;
            font-size: 1.1rem;
            transition: all var(--transition);
            box-shadow: 0 8px 28px rgba(0,0,0,0.2);
        }
        .cta-section .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(0,0,0,0.3);
            background: #fff3ef;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--secondary);
            color: rgba(255,255,255,0.7);
            padding: 48px 0 32px;
        }
        .footer-inner {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 var(--gap);
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--gap);
        }
        .footer-brand .logo { color: var(--text-white); margin-bottom: 12px; }
        .footer-brand .logo span { color: var(--accent); }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 300px; }
        .footer-col h4 { color: var(--text-white); font-size: 1rem; margin-bottom: 16px; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul a { font-size: 0.9rem; color: rgba(255,255,255,0.6); transition: color var(--transition); }
        .footer-col ul a:hover { color: var(--primary); }
        .footer-bottom {
            max-width: var(--container);
            margin: 32px auto 0;
            padding: 20px var(--gap) 0;
            border-top: 1px solid rgba(255,255,255,0.08);
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .card-grid { grid-template-columns: repeat(2, 1fr); }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-inner { grid-template-columns: 1fr 1fr; }
            .hero h1 { font-size: 2.6rem; }
            h2 { font-size: 1.8rem; }
        }

        @media (max-width: 768px) {
            .nav-list { display: none; }
            .nav-list.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--bg-alt);
                border-bottom: 1px solid var(--border);
                padding: 16px var(--gap);
                box-shadow: var(--shadow-lg);
                gap: 8px;
            }
            .nav-list.open a { padding: 12px 18px; border-radius: var(--radius-sm); }
            .nav-toggle { display: block; }
            .nav-cta .btn-primary { padding: 8px 20px; font-size: 0.85rem; }
            .hero { min-height: 440px; padding: 60px var(--gap) 40px; }
            .hero h1 { font-size: 2rem; }
            .hero p { font-size: 1rem; }
            .card-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-grid { grid-template-columns: 1fr; }
            .footer-inner { grid-template-columns: 1fr; gap: 32px; }
            .cms-item { flex-direction: column; align-items: flex-start; gap: 10px; }
            .cms-item .cms-meta { flex-wrap: wrap; }
            .section { --section-space: 48px; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.6rem; }
            .cta-section h2 { font-size: 1.8rem; }
        }

        @media (max-width: 520px) {
            .header-inner { height: 60px; }
            .logo { font-size: 1.2rem; }
            .logo i { font-size: 1.4rem; }
            .hero h1 { font-size: 1.6rem; }
            .hero-actions .btn-primary,
            .hero-actions .btn-outline { padding: 12px 28px; font-size: 0.95rem; width: 100%; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .stat-item .stat-num { font-size: 2rem; }
            .container { padding: 0 16px; }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mt-16 { margin-top: 16px; }
        .mt-24 { margin-top: 24px; }
        .gap-16 { gap: 16px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b76;
            --secondary: #1d3557;
            --secondary-light: #2a4a7f;
            --accent: #f4a261;
            --accent-light: #f8c48a;
            --bg-dark: #0b1a2e;
            --bg-section: #f8f9fc;
            --bg-card: #ffffff;
            --bg-footer: #0b1a2e;
            --text-dark: #1a1a2e;
            --text-main: #2d3748;
            --text-light: #6b7280;
            --text-white: #ffffff;
            --border-light: #e2e8f0;
            --border-card: #edf2f7;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.10);
            --shadow-lg: 0 20px 50px rgba(0,0,0,0.15);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-w: 1200px;
            --header-h: 72px;
        }

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

        html { scroll-behavior: smooth; font-size: 16px; }

        body {
            font-family: var(--font-sans);
            color: var(--text-main);
            background: #ffffff;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary); }
        ul { list-style: none; padding: 0; }
        button { cursor: pointer; font-family: inherit; border: none; background: none; }
        input, textarea { font-family: inherit; outline: none; }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-h);
            background: rgba(11, 26, 46, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255,255,255,0.08);
            z-index: 1000;
            transition: var(--transition);
        }
        .header-inner {
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.5px;
        }
        .logo i { color: var(--primary); font-size: 1.6rem; }
        .logo span { color: var(--primary); font-weight: 700; }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list li a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: rgba(255,255,255,0.7);
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }
        .nav-list li a:hover,
        .nav-list li a:focus-visible {
            color: #fff;
            background: rgba(255,255,255,0.08);
        }
        .nav-list li a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 15px rgba(230, 57, 70, 0.4);
        }
        .nav-list li a.active::after {
            display: none;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: var(--primary);
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            box-shadow: 0 4px 15px rgba(230,57,70,0.35);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(230,57,70,0.45);
            color: #fff;
        }
        .btn-primary i { font-size: 0.85rem; }

        .nav-toggle {
            display: none;
            color: #fff;
            font-size: 1.5rem;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            background: rgba(255,255,255,0.06);
            transition: var(--transition);
        }
        .nav-toggle:hover { background: rgba(255,255,255,0.12); }

        /* ===== Mobile Nav ===== */
        @media (max-width: 900px) {
            .nav-list {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(11, 26, 46, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 6px;
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-bottom: 1px solid rgba(255,255,255,0.06);
                box-shadow: var(--shadow-lg);
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-list li a {
                display: block;
                padding: 12px 18px;
                font-size: 1rem;
                width: 100%;
            }
            .nav-toggle { display: block; }
            .nav-cta .btn-primary { display: none; }
            .nav-cta .btn-primary.mobile-show { display: inline-flex; }
        }
        @media (max-width: 520px) {
            .logo { font-size: 1.25rem; }
            .header-inner { padding: 0 16px; }
        }

        /* ===== Page Banner ===== */
        .page-banner {
            margin-top: var(--header-h);
            padding: 100px 0 80px;
            background: linear-gradient(135deg, #0b1a2e 0%, #1d3557 60%, #2a4a7f 100%);
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .page-banner .container { position: relative; z-index: 2; }
        .page-banner h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -1px;
            line-height: 1.2;
        }
        .page-banner h1 i { color: var(--primary); margin-right: 12px; }
        .page-banner p {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.75);
            max-width: 720px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }
        .banner-tags {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 10px;
        }
        .banner-tags .tag {
            padding: 6px 18px;
            border-radius: 50px;
            background: rgba(255,255,255,0.12);
            color: rgba(255,255,255,0.85);
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid rgba(255,255,255,0.15);
            transition: var(--transition);
        }
        .banner-tags .tag:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        @media (max-width: 768px) {
            .page-banner { padding: 70px 0 50px; }
            .page-banner h1 { font-size: 2rem; }
            .page-banner p { font-size: 1rem; }
        }
        @media (max-width: 520px) {
            .page-banner h1 { font-size: 1.6rem; }
        }

        /* ===== Section Common ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt { background: var(--bg-section); }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-title h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .section-title p {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-dark .section-title h2 { color: #fff; }
        .section-dark .section-title p { color: rgba(255,255,255,0.65); }

        @media (max-width: 768px) {
            .section { padding: 50px 0; }
            .section-title h2 { font-size: 1.6rem; }
        }

        /* ===== Guide Cards Grid ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
            gap: 30px;
        }
        .guide-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-card);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }
        .guide-card .card-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: #fff;
            margin-bottom: 18px;
        }
        .guide-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }
        .guide-card p {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .guide-card .step-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .guide-card .step-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-main);
        }
        .guide-card .step-list li i {
            color: var(--primary);
            margin-top: 4px;
            font-size: 0.8rem;
        }
        .guide-card .badge {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 50px;
            background: rgba(230,57,70,0.1);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            margin-top: 12px;
        }

        @media (max-width: 600px) {
            .guide-grid { grid-template-columns: 1fr; }
        }

        /* ===== Steps Timeline ===== */
        .steps-timeline {
            display: flex;
            flex-direction: column;
            gap: 30px;
            max-width: 800px;
            margin: 0 auto;
        }
        .step-item {
            display: flex;
            gap: 24px;
            align-items: flex-start;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-card);
            transition: var(--transition);
        }
        .step-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }
        .step-num {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 800;
        }
        .step-content h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .step-content p {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
        }
        .step-content .tip {
            display: inline-block;
            margin-top: 10px;
            padding: 4px 14px;
            border-radius: 50px;
            background: rgba(244,162,97,0.12);
            color: #c77d3a;
            font-size: 0.8rem;
            font-weight: 500;
        }
        .step-content .tip i { margin-right: 6px; }

        @media (max-width: 640px) {
            .step-item { flex-direction: column; gap: 14px; padding: 22px 20px; }
            .step-num { width: 40px; height: 40px; font-size: 1rem; }
        }

        /* ===== FAQ ===== */
        .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-sm);
            border: 1px solid var(--border-card);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--primary); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            background: transparent;
            width: 100%;
            text-align: left;
            gap: 16px;
            transition: var(--transition);
        }
        .faq-question:hover { color: var(--primary); }
        .faq-question i {
            font-size: 1.1rem;
            color: var(--primary);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-question.active i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-answer.open {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        @media (max-width: 600px) {
            .faq-question { padding: 14px 18px; font-size: 0.95rem; }
            .faq-answer.open { padding: 0 18px 16px; }
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #0b1a2e 0%, #1d3557 60%, #2a4a7f 100%);
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.7);
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-primary {
            padding: 14px 40px;
            font-size: 1.1rem;
            border-radius: var(--radius-sm);
            background: var(--primary);
            box-shadow: 0 8px 30px rgba(230,57,70,0.4);
        }
        .cta-section .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(230,57,70,0.5);
        }
        .cta-section .cta-note {
            margin-top: 16px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
        }

        @media (max-width: 768px) {
            .cta-section h2 { font-size: 1.7rem; }
            .cta-section p { font-size: 1rem; }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-footer);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 0;
        }
        .footer-inner {
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
        }
        .footer-brand .logo {
            font-size: 1.5rem;
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255,255,255,0.55);
            max-width: 340px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.55);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-col ul li a:hover { color: var(--primary); }
        .footer-bottom {
            max-width: var(--container-w);
            margin: 40px auto 0;
            padding: 20px 24px;
            border-top: 1px solid rgba(255,255,255,0.06);
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }

        @media (max-width: 900px) {
            .footer-inner { grid-template-columns: 1fr 1fr; gap: 30px; }
            .footer-brand { grid-column: 1 / -1; }
        }
        @media (max-width: 520px) {
            .footer-inner { grid-template-columns: 1fr; gap: 24px; }
        }

        /* ===== Back to Top ===== */
        .back-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: 0 4px 20px rgba(230,57,70,0.4);
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: var(--transition);
            z-index: 999;
        }
        .back-top.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .back-top:hover {
            background: var(--primary-dark);
            transform: translateY(-4px);
            box-shadow: 0 8px 30px rgba(230,57,70,0.5);
            color: #fff;
        }

        /* ===== Responsive Fine-tune ===== */
        @media (max-width: 1024px) {
            .container { padding: 0 20px; }
        }
        @media (max-width: 768px) {
            :root { --header-h: 64px; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 14px; }
            .section-title h2 { font-size: 1.4rem; }
        }

        /* ===== Focus visible for accessibility ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ===== Notify Bar ===== */
        .notify-bar {
            background: linear-gradient(90deg, var(--primary), var(--primary-dark));
            color: #fff;
            text-align: center;
            padding: 10px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            position: relative;
            z-index: 1001;
            margin-top: var(--header-h);
        }
        .notify-bar i { margin-right: 8px; }
        .notify-bar .highlight { font-weight: 700; text-decoration: underline; }
        @media (max-width: 600px) {
            .notify-bar { font-size: 0.8rem; padding: 8px 12px; }
        }

        /* ===== Info Cards Row ===== */
        .info-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 24px;
        }
        .info-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 22px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-card);
            transition: var(--transition);
        }
        .info-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }
        .info-card .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .info-card h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 4px;
        }
        .info-card p {
            font-size: 0.85rem;
            color: var(--text-light);
        }

        /* ===== Image Block ===== */
        .img-block {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .img-block img {
            width: 100%;
            height: 280px;
            object-fit: cover;
            display: block;
            transition: var(--transition);
        }
        .img-block:hover img { transform: scale(1.03); }

        @media (max-width: 600px) {
            .img-block img { height: 200px; }
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #e50914;
            --primary-dark: #b00811;
            --primary-light: #ff4d4d;
            --secondary: #ff6b35;
            --accent: #ffd700;
            --bg-dark: #0d0d0d;
            --bg-card: #1a1a1a;
            --bg-section: #111111;
            --bg-light: #f5f5f5;
            --text-white: #ffffff;
            --text-light: #cccccc;
            --text-muted: #999999;
            --text-dark: #222222;
            --border-color: #2a2a2a;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.4);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.5);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        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: 1rem; outline: none; border: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--text-white); }

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

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            background: rgba(13, 13, 13, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            transition: var(--transition);
        }
        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.5px;
        }
        .logo i { color: var(--primary); font-size: 1.6rem; }
        .logo span { color: var(--primary); }
        .nav-list { display: flex; gap: 8px; }
        .nav-list li a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
            position: relative;
        }
        .nav-list li a:hover { color: var(--text-white); background: rgba(255,255,255,0.06); }
        .nav-list li a.active {
            color: var(--text-white);
            background: var(--primary);
        }
        .nav-cta { display: flex; align-items: center; gap: 16px; }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: var(--primary);
            color: var(--text-white);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(229, 9, 20, 0.35); }
        .nav-toggle { display: none; background: none; color: var(--text-white); font-size: 1.5rem; cursor: pointer; padding: 4px; }

        /* ===== Hero Banner (inner) ===== */
        .page-hero {
            margin-top: var(--header-height);
            padding: 80px 0 60px;
            background: linear-gradient(135deg, #0d0d0d 0%, #1a0a0a 50%, #0d0d0d 100%);
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.15;
            pointer-events: none;
        }
        .page-hero .container { position: relative; z-index: 1; text-align: center; }
        .page-hero h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .page-hero p {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto;
        }
        .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 12px;
            margin-bottom: 20px;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .breadcrumb a { color: var(--primary); }
        .breadcrumb a:hover { text-decoration: underline; }
        .breadcrumb span { color: var(--text-light); }

        /* ===== Article Main ===== */
        .article-section {
            padding: 60px 0 80px;
            background: var(--bg-dark);
        }
        .article-wrapper {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 48px;
        }
        .article-main { min-width: 0; }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 32px;
            padding-bottom: 24px;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .article-meta i { margin-right: 6px; }
        .article-meta .category {
            background: var(--primary);
            color: var(--text-white);
            padding: 4px 14px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.85rem;
        }
        .article-body {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-light);
        }
        .article-body p { margin-bottom: 1.6em; }
        .article-body h2, .article-body h3 { color: var(--text-white); margin-top: 2em; margin-bottom: 0.8em; }
        .article-body h2 { font-size: 1.6rem; }
        .article-body h3 { font-size: 1.3rem; }
        .article-body ul, .article-body ol { margin-bottom: 1.6em; padding-left: 1.5em; }
        .article-body li { margin-bottom: 0.4em; }
        .article-body a { color: var(--primary); text-decoration: underline; }
        .article-body a:hover { color: var(--primary-light); }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            margin: 1.6em 0;
            background: var(--bg-card);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light);
            font-style: italic;
        }
        .article-body img {
            border-radius: var(--radius-md);
            margin: 1.6em 0;
            box-shadow: var(--shadow-md);
        }
        .article-footer-tags {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .tag {
            display: inline-block;
            padding: 6px 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .tag:hover { border-color: var(--primary); color: var(--primary); }

        /* ===== Sidebar ===== */
        .article-sidebar { position: sticky; top: calc(var(--header-height) + 24px); align-self: start; }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px;
            margin-bottom: 28px;
            border: 1px solid var(--border-color);
        }
        .sidebar-card h3 {
            font-size: 1.15rem;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-card h3 i { color: var(--primary); }
        .sidebar-list li { margin-bottom: 14px; }
        .sidebar-list li a {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-light);
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .sidebar-list li a:hover { color: var(--primary); transform: translateX(4px); }
        .sidebar-list li a i { color: var(--primary); font-size: 0.8rem; }
        .sidebar-cta {
            text-align: center;
        }
        .sidebar-cta .btn-primary { width: 100%; justify-content: center; padding: 14px; font-size: 1.05rem; }
        .sidebar-cta p { margin-top: 12px; font-size: 0.85rem; color: var(--text-muted); }

        /* ===== Related Posts ===== */
        .related-section {
            padding: 60px 0 80px;
            background: var(--bg-section);
        }
        .related-section h2 {
            font-size: 1.8rem;
            margin-bottom: 40px;
            text-align: center;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
        .related-card img { width: 100%; height: 200px; object-fit: cover; }
        .related-card .card-body { padding: 20px; }
        .related-card .card-body h4 { font-size: 1.05rem; margin-bottom: 8px; }
        .related-card .card-body h4 a { color: var(--text-white); }
        .related-card .card-body h4 a:hover { color: var(--primary); }
        .related-card .card-body p { font-size: 0.9rem; color: var(--text-muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .related-card .card-meta { display: flex; justify-content: space-between; margin-top: 12px; font-size: 0.8rem; color: var(--text-muted); }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
        }
        .not-found-box i { font-size: 4rem; color: var(--text-muted); margin-bottom: 24px; }
        .not-found-box h2 { font-size: 2rem; margin-bottom: 16px; }
        .not-found-box p { color: var(--text-muted); margin-bottom: 24px; }
        .not-found-box .btn-primary { display: inline-flex; }

        /* ===== Footer ===== */
        .site-footer {
            background: #0a0a0a;
            border-top: 1px solid var(--border-color);
            padding: 60px 0 0;
        }
        .footer-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 48px;
        }
        .footer-brand .logo { margin-bottom: 16px; }
        .footer-brand p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }
        .footer-col h4 { font-size: 1rem; margin-bottom: 20px; color: var(--text-white); }
        .footer-col ul li { margin-bottom: 12px; }
        .footer-col ul li a { color: var(--text-muted); font-size: 0.9rem; }
        .footer-col ul li a:hover { color: var(--primary); }
        .footer-bottom {
            margin-top: 48px;
            padding: 20px 24px;
            border-top: 1px solid var(--border-color);
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-wrapper { grid-template-columns: 1fr; }
            .article-sidebar { position: static; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
            .footer-inner { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .nav-list { display: none; }
            .nav-list.open { display: flex; flex-direction: column; position: absolute; top: var(--header-height); left: 0; width: 100%; background: rgba(13,13,13,0.98); backdrop-filter: blur(12px); padding: 16px 24px; border-bottom: 1px solid var(--border-color); }
            .nav-toggle { display: block; }
            .page-hero h1 { font-size: 1.6rem; }
            .article-meta { gap: 12px; }
            .related-grid { grid-template-columns: 1fr; }
            .article-sidebar { grid-template-columns: 1fr; }
            .footer-inner { grid-template-columns: 1fr; gap: 32px; }
        }
        @media (max-width: 520px) {
            .header-inner { padding: 0 16px; }
            .container { padding: 0 16px; }
            .page-hero { padding: 60px 0 40px; }
            .page-hero h1 { font-size: 1.3rem; }
            .btn-primary { padding: 8px 16px; font-size: 0.9rem; }
            .footer-inner { padding: 0 16px; }
        }