/* roulang page: index */
:root {
            --primary: #c0392b;
            --primary-dark: #a93226;
            --primary-light: #e74c3c;
            --secondary: #f39c12;
            --secondary-dark: #d68910;
            --accent: #2c3e50;
            --bg: #f8f5f0;
            --bg-white: #ffffff;
            --bg-dark: #1a1a2e;
            --bg-card: #ffffff;
            --text: #2c3e50;
            --text-light: #7f8c8d;
            --text-white: #ffffff;
            --border: #e8e0d8;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.15);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
            --spacing-section: 80px;
            --spacing-block: 60px;
        }

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

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

        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
        }
        ul,
        ol {
            list-style: none;
        }

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

        .section {
            padding: var(--spacing-section) 0;
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--text);
            text-align: center;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-light);
            text-align: center;
            margin-bottom: 48px;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
        }
        .section-divider {
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin: 16px auto 40px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            transition: var(--transition);
            border: 2px solid transparent;
            text-align: center;
            line-height: 1.2;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(192, 57, 43, 0.35);
        }
        .btn-secondary {
            background: var(--secondary);
            color: #fff;
            border-color: var(--secondary);
        }
        .btn-secondary:hover {
            background: var(--secondary-dark);
            border-color: var(--secondary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(243, 156, 18, 0.35);
        }
        .btn-outline {
            background: transparent;
            color: var(--text);
            border-color: var(--border);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-white {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
        }
        .btn-white:hover {
            background: #f0f0f0;
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 255, 255, 0.25);
        }
        .btn-lg {
            padding: 18px 44px;
            font-size: 18px;
        }
        .btn-sm {
            padding: 10px 20px;
            font-size: 14px;
        }

        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
            background: var(--primary);
            color: #fff;
        }
        .badge-secondary {
            background: var(--secondary);
            color: #fff;
        }
        .badge-outline {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-light);
        }

        /* ===== Header & Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(232, 224, 216, 0.5);
            height: var(--header-height);
            transition: var(--transition);
        }
        .header.scrolled {
            box-shadow: 0 2px 30px rgba(0, 0, 0, 0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: center;
            height: var(--header-height);
            position: relative;
        }
        .header-logo {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            transition: var(--transition);
        }
        .header-logo:hover {
            color: var(--primary-dark);
        }
        .header-logo span {
            color: var(--text);
        }

        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-left {
            margin-right: auto;
        }
        .nav-right {
            margin-left: auto;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            border-radius: 50px;
            transition: var(--transition);
            position: relative;
        }
        .nav-link:hover {
            background: rgba(192, 57, 43, 0.06);
            color: var(--primary);
        }
        .nav-link.active {
            background: var(--primary);
            color: #fff;
        }
        .nav-link.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }

        .nav-toggle {
            display: none;
            background: none;
            font-size: 24px;
            color: var(--text);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(0, 0, 0, 0.04);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            padding: 16px 24px;
            box-shadow: var(--shadow-lg);
            z-index: 999;
            max-height: calc(100vh - var(--header-height));
            overflow-y: auto;
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu .nav-link {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            border-bottom: 1px solid rgba(232, 224, 216, 0.3);
        }
        .mobile-menu .nav-link:last-child {
            border-bottom: none;
        }

        /* ===== Hero ===== */
        .hero {
            padding: 140px 0 80px;
            min-height: 85vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            background: var(--bg-dark);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.45;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 46, 0.88) 0%, rgba(26, 26, 46, 0.72) 50%, rgba(192, 57, 43, 0.25) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }
        .hero-tag {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            background: rgba(243, 156, 18, 0.2);
            color: var(--secondary);
            border: 1px solid rgba(243, 156, 18, 0.3);
            margin-bottom: 24px;
            letter-spacing: 0.5px;
        }
        .hero h1 {
            font-size: 48px;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }
        .hero h1 span {
            color: var(--secondary);
        }
        .hero p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.8;
            margin-bottom: 36px;
            max-width: 600px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }
        .hero-stat {
            text-align: center;
        }
        .hero-stat-num {
            font-size: 32px;
            font-weight: 800;
            color: var(--secondary);
            display: block;
        }
        .hero-stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
        }

        /* ===== Features ===== */
        .features {
            background: var(--bg-white);
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .feature-card {
            padding: 36px 28px;
            border-radius: var(--radius);
            background: var(--bg-card);
            border: 1px solid var(--border);
            transition: var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            background: rgba(192, 57, 43, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 28px;
            color: var(--primary);
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: #fff;
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }
        .feature-card p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* ===== Categories ===== */
        .categories {
            background: var(--bg);
        }
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            min-height: 240px;
            display: flex;
            align-items: flex-end;
            cursor: pointer;
            transition: var(--transition);
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .category-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .category-card:hover img {
            transform: scale(1.06);
        }
        .category-card-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.2) 60%, transparent 100%);
            z-index: 1;
        }
        .category-card-content {
            position: relative;
            z-index: 2;
            padding: 24px 20px;
            width: 100%;
        }
        .category-card-content h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .category-card-content p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.5;
        }

        /* ===== Latest Posts ===== */
        .latest-posts {
            background: var(--bg-white);
        }
        .posts-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .post-card {
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .post-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .post-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .post-card-body {
            padding: 22px 20px 24px;
        }
        .post-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
            font-size: 13px;
            color: var(--text-light);
        }
        .post-card-meta .badge {
            font-size: 11px;
            padding: 3px 12px;
        }
        .post-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-card-title a {
            color: inherit;
        }
        .post-card-title a:hover {
            color: var(--primary);
        }
        .post-card-excerpt {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 16px;
            padding-top: 14px;
            border-top: 1px solid var(--border);
            font-size: 13px;
            color: var(--text-light);
        }
        .post-card-footer .btn {
            font-size: 13px;
            padding: 6px 16px;
        }

        /* ===== Guide / Steps ===== */
        .guide {
            background: var(--bg);
        }
        .guide-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            counter-reset: step;
        }
        .guide-step {
            text-align: center;
            padding: 32px 20px;
            border-radius: var(--radius);
            background: var(--bg-card);
            border: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
        }
        .guide-step:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .guide-step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            transition: var(--transition);
        }
        .guide-step:hover .guide-step-num {
            background: var(--secondary);
            transform: scale(1.06);
        }
        .guide-step h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }
        .guide-step p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq {
            background: var(--bg-white);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            background: var(--bg-card);
        }
        .faq-item:hover {
            border-color: var(--primary);
        }
        .faq-item.active {
            border-color: var(--primary);
            box-shadow: var(--shadow);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
            gap: 16px;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            font-size: 14px;
            color: var(--text-light);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }
        .cta-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.2;
            z-index: 0;
        }
        .cta .container {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 80px 24px;
        }
        .cta h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .cta p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }

        /* ===== Footer ===== */
        .footer {
            background: #1a1a2e;
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 32px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            display: inline-block;
            margin-bottom: 12px;
        }
        .footer-brand .logo span {
            color: var(--secondary);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer ul li {
            margin-bottom: 10px;
        }
        .footer ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
        }
        .footer ul li a:hover {
            color: var(--secondary);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 24px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a:hover {
            color: var(--secondary);
        }

        /* ===== Empty state ===== */
        .empty-state {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-light);
            font-size: 15px;
        }
        .empty-state i {
            font-size: 40px;
            display: block;
            margin-bottom: 16px;
            opacity: 0.4;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .categories-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .posts-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guide-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-top {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero h1 {
                font-size: 38px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 56px;
                --header-height: 64px;
            }
            .nav-left,
            .nav-right {
                display: none;
            }
            .nav-toggle {
                display: block;
                margin-left: auto;
            }
            .header-logo {
                position: relative;
                left: 0;
                transform: none;
                font-size: 18px;
            }
            .header-inner {
                justify-content: flex-start;
                gap: 12px;
            }
            .hero {
                padding: 110px 0 56px;
                min-height: auto;
            }
            .hero h1 {
                font-size: 30px;
            }
            .hero p {
                font-size: 16px;
            }
            .hero-stats {
                gap: 24px;
                flex-wrap: wrap;
            }
            .hero-stat-num {
                font-size: 24px;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .categories-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .category-card {
                min-height: 180px;
            }
            .posts-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .guide-steps {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .section-title {
                font-size: 26px;
            }
            .cta h2 {
                font-size: 26px;
            }
            .cta .container {
                padding: 48px 24px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .btn-lg {
                padding: 14px 32px;
                font-size: 16px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero h1 {
                font-size: 26px;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-stats {
                flex-direction: column;
                gap: 16px;
                align-items: flex-start;
            }
            .hero-stat {
                display: flex;
                align-items: center;
                gap: 12px;
            }
            .section-title {
                font-size: 22px;
            }
            .post-card-img {
                height: 160px;
            }
            .faq-question {
                font-size: 15px;
                padding: 16px 18px;
            }
            .faq-answer {
                font-size: 14px;
            }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
    :root {
        --primary: #c0392b;
        --primary-dark: #922b21;
        --primary-light: #e74c3c;
        --secondary: #f39c12;
        --secondary-light: #f1c40f;
        --accent: #2c3e50;
        --bg-body: #f8f5f0;
        --bg-white: #ffffff;
        --bg-dark: #1a1a2e;
        --bg-card: #ffffff;
        --bg-soft: #f0ebe4;
        --text-primary: #1a1a2e;
        --text-body: #3d3d4a;
        --text-muted: #7f8c8d;
        --text-light: #bdc3c7;
        --text-on-dark: #ecf0f1;
        --border: #e0d6cc;
        --border-light: #f0eae4;
        --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
        --shadow-md: 0 6px 24px rgba(0,0,0,0.08);
        --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
        --radius-sm: 8px;
        --radius-md: 14px;
        --radius-lg: 20px;
        --radius-xl: 28px;
        --font: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, sans-serif;
        --nav-height: 72px;
        --container-w: 1200px;
        --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

    /* ===== 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-body);
        background: var(--bg-body);
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
    a { color: var(--primary); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--primary-dark); }
    a:focus-visible { outline: 3px solid var(--secondary); outline-offset: 2px; }
    button, input, textarea { font-family: inherit; font-size: 1rem; border: none; outline: none; }
    button { cursor: pointer; background: none; }
    ul, ol { list-style: none; }
    h1, h2, h3, h4, h5, h6 { color: var(--text-primary); font-weight: 700; line-height: 1.25; }
    h1 { font-size: 2.6rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.4rem; }
    h4 { font-size: 1.1rem; }
    p { margin-bottom: 0.8rem; }
    .container { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }

    /* ===== Buttons ===== */
    .btn {
        display: inline-flex; align-items: center; gap: 10px; padding: 13px 32px;
        border-radius: 50px; font-weight: 600; font-size: 1rem; line-height: 1.2;
        transition: var(--transition); border: 2px solid transparent; 
        box-shadow: var(--shadow-sm); letter-spacing: 0.3px;
    }
    .btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
    .btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-md); }
    .btn-primary:active { transform: translateY(0); }
    .btn-secondary { background: var(--secondary); color: #fff; border-color: var(--secondary); }
    .btn-secondary:hover { background: #e67e22; border-color: #e67e22; color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-md); }
    .btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
    .btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-md); }
    .btn-light { background: #fff; color: var(--primary); border-color: #fff; }
    .btn-light:hover { background: var(--bg-soft); color: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }
    .btn-sm { padding: 8px 20px; font-size: 0.875rem; }

    /* ===== Badge / Tag ===== */
    .badge {
        display: inline-block; padding: 4px 14px; border-radius: 50px; font-size: 0.8rem;
        font-weight: 600; background: var(--bg-soft); color: var(--primary); 
        border: 1px solid var(--border); transition: var(--transition);
    }
    .badge-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
    .badge-hot { background: #ff6b6b; color: #fff; border-color: #ff6b6b; }
    .badge-new { background: #2ecc71; color: #fff; border-color: #2ecc71; }
    .tag {
        display: inline-block; padding: 5px 16px; border-radius: 50px; font-size: 0.85rem;
        font-weight: 500; background: var(--bg-soft); color: var(--text-body);
        border: 1px solid var(--border); transition: var(--transition); margin: 3px;
    }
    .tag:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-1px); }

    /* ===== Header & Navigation ===== */
    .header {
        position: sticky; top: 0; z-index: 1000; background: var(--bg-white);
        border-bottom: 1px solid var(--border-light); box-shadow: 0 2px 12px rgba(0,0,0,0.04);
        height: var(--nav-height); display: flex; align-items: center;
    }
    .header .container { display: flex; align-items: center; justify-content: center; width: 100%; position: relative; }
    .logo {
        font-size: 1.5rem; font-weight: 800; color: var(--text-primary); 
        letter-spacing: -0.5px; white-space: nowrap; transition: var(--transition);
    }
    .logo span { color: var(--primary); }
    .logo:hover { color: var(--primary); }
    .nav-wrap { display: flex; align-items: center; gap: 12px; position: absolute; left: 24px; }
    .nav-left { display: flex; align-items: center; gap: 6px; }
    .nav-link {
        padding: 8px 18px; border-radius: 50px; font-weight: 500; font-size: 0.95rem;
        color: var(--text-body); transition: var(--transition); white-space: nowrap;
    }
    .nav-link:hover { background: var(--bg-soft); color: var(--primary); }
    .nav-link.active { background: var(--primary); color: #fff; box-shadow: var(--shadow-sm); }
    .nav-link.active:hover { background: var(--primary-dark); }
    .nav-right { display: flex; align-items: center; gap: 12px; position: absolute; right: 24px; }
    .nav-right .btn { padding: 8px 22px; font-size: 0.9rem; }
    .menu-toggle { display: none; font-size: 1.5rem; color: var(--text-primary); padding: 6px 10px; border-radius: var(--radius-sm); background: var(--bg-soft); }

    /* ===== Mobile Nav ===== */
    .mobile-nav {
        display: none; position: fixed; top: var(--nav-height); left: 0; right: 0; 
        background: var(--bg-white); border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-md); z-index: 999; padding: 16px 24px;
        flex-direction: column; gap: 10px; max-height: 80vh; overflow-y: auto;
    }
    .mobile-nav.open { display: flex; }
    .mobile-nav .nav-link { display: block; padding: 12px 16px; border-radius: var(--radius-sm); font-size: 1rem; }
    .mobile-nav .nav-right-mob { display: flex; gap: 10px; padding-top: 10px; border-top: 1px solid var(--border-light); }
    .mobile-nav .nav-right-mob .btn { flex: 1; justify-content: center; }

    /* ===== Hero / Banner ===== */
    .page-hero {
        position: relative; min-height: 380px; display: flex; align-items: center;
        background: linear-gradient(135deg, var(--bg-dark) 0%, #16213e 50%, #0f3460 100%);
        background-size: cover; background-position: center center;
        overflow: hidden; padding: 80px 0 60px;
    }
    .page-hero::before {
        content: ''; position: absolute; inset: 0;
        background: rgba(0,0,0,0.55); z-index: 1;
    }
    .page-hero .container { position: relative; z-index: 2; text-align: center; }
    .page-hero h1 { color: #fff; font-size: 2.8rem; margin-bottom: 16px; text-shadow: 0 2px 20px rgba(0,0,0,0.3); }
    .page-hero p { color: rgba(255,255,255,0.85); font-size: 1.15rem; max-width: 680px; margin: 0 auto 28px; line-height: 1.7; }
    .hero-breadcrumb { display: flex; justify-content: center; align-items: center; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }
    .hero-breadcrumb a, .hero-breadcrumb span { color: rgba(255,255,255,0.7); font-size: 0.9rem; }
    .hero-breadcrumb a:hover { color: #fff; }
    .hero-breadcrumb .sep { color: rgba(255,255,255,0.4); }
    .hero-breadcrumb .current { color: var(--secondary); font-weight: 600; }

    /* ===== Section Common ===== */
    .section { padding: 72px 0; }
    .section-alt { background: var(--bg-soft); }
    .section-dark { background: var(--bg-dark); color: var(--text-on-dark); }
    .section-dark h2, .section-dark h3, .section-dark h4 { color: #fff; }
    .section-header { text-align: center; margin-bottom: 48px; }
    .section-header h2 { margin-bottom: 12px; }
    .section-header p { color: var(--text-muted); max-width: 600px; margin: 0 auto; font-size: 1.05rem; }
    .section-dark .section-header p { color: rgba(255,255,255,0.65); }
    .divider { width: 60px; height: 4px; background: var(--primary); border-radius: 4px; margin: 14px auto 20px; }
    .divider-light { background: var(--secondary); }

    /* ===== Card ===== */
    .card {
        background: var(--bg-card); border-radius: var(--radius-md); 
        box-shadow: var(--shadow-sm); border: 1px solid var(--border-light);
        overflow: hidden; transition: var(--transition);
    }
    .card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
    .card-img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; display: block; }
    .card-body { padding: 20px 22px 24px; }
    .card-body h3 { font-size: 1.15rem; margin-bottom: 8px; }
    .card-body h3 a { color: var(--text-primary); }
    .card-body h3 a:hover { color: var(--primary); }
    .card-body p { color: var(--text-muted); font-size: 0.92rem; line-height: 1.6; }
    .card-meta { display: flex; align-items: center; gap: 16px; margin-top: 14px; font-size: 0.82rem; color: var(--text-light); }
    .card-meta i { margin-right: 4px; }
    .card-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
    .card-tags .badge { font-size: 0.72rem; padding: 2px 12px; }

    /* ===== Grid ===== */
    .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
    .grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
    .grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

    /* ===== Guide Categories ===== */
    .guide-cats { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 40px; }
    .guide-cats .tag { padding: 8px 24px; font-size: 0.95rem; }

    /* ===== Ranking List ===== */
    .rank-list { display: flex; flex-direction: column; gap: 12px; }
    .rank-item {
        display: flex; align-items: center; gap: 16px; padding: 14px 20px;
        background: var(--bg-card); border-radius: var(--radius-sm);
        border: 1px solid var(--border-light); transition: var(--transition);
    }
    .rank-item:hover { background: var(--bg-soft); transform: translateX(4px); }
    .rank-num { 
        width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
        border-radius: 50%; font-weight: 700; font-size: 1.1rem; 
        background: var(--bg-soft); color: var(--primary); flex-shrink: 0;
    }
    .rank-item:nth-child(1) .rank-num { background: var(--primary); color: #fff; }
    .rank-item:nth-child(2) .rank-num { background: var(--secondary); color: #fff; }
    .rank-item:nth-child(3) .rank-num { background: #e67e22; color: #fff; }
    .rank-info { flex: 1; }
    .rank-info h4 { font-size: 1rem; margin-bottom: 2px; }
    .rank-info p { font-size: 0.85rem; color: var(--text-muted); margin: 0; }
    .rank-meta { font-size: 0.8rem; color: var(--text-light); white-space: nowrap; }

    /* ===== Steps / Process ===== */
    .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
    .step-card { text-align: center; padding: 32px 20px; background: var(--bg-card); border-radius: var(--radius-md); border: 1px solid var(--border-light); transition: var(--transition); }
    .step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
    .step-num { 
        width: 56px; height: 56px; margin: 0 auto 16px; display: flex; align-items: center; justify-content: center;
        border-radius: 50%; font-size: 1.6rem; font-weight: 800; color: #fff; background: var(--primary);
        box-shadow: 0 4px 14px rgba(192,57,43,0.25);
    }
    .step-card:nth-child(2) .step-num { background: var(--secondary); box-shadow: 0 4px 14px rgba(243,156,18,0.25); }
    .step-card:nth-child(3) .step-num { background: #2ecc71; box-shadow: 0 4px 14px rgba(46,204,113,0.25); }
    .step-card:nth-child(4) .step-num { background: var(--accent); box-shadow: 0 4px 14px rgba(44,62,80,0.25); }
    .step-card h4 { margin-bottom: 8px; }
    .step-card p { font-size: 0.9rem; color: var(--text-muted); margin: 0; }

    /* ===== FAQ ===== */
    .faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
    .faq-item { 
        background: var(--bg-card); border: 1px solid var(--border-light); 
        border-radius: var(--radius-sm); overflow: hidden; transition: var(--transition);
    }
    .faq-item:hover { border-color: var(--border); }
    .faq-q {
        display: flex; align-items: center; justify-content: space-between; 
        padding: 16px 22px; font-weight: 600; color: var(--text-primary);
        cursor: pointer; transition: var(--transition); gap: 12px;
    }
    .faq-q i { color: var(--primary); transition: var(--transition); font-size: 0.9rem; }
    .faq-q.open i { transform: rotate(180deg); }
    .faq-q:hover { background: var(--bg-soft); }
    .faq-a {
        padding: 0 22px 16px; color: var(--text-muted); font-size: 0.95rem; line-height: 1.7;
        display: none;
    }
    .faq-a.open { display: block; }

    /* ===== CTA ===== */
    .cta-box {
        background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
        border-radius: var(--radius-lg); padding: 56px 48px; text-align: center;
        box-shadow: var(--shadow-lg); position: relative; overflow: hidden;
    }
    .cta-box::before {
        content: ''; position: absolute; top: -50%; right: -30%; width: 300px; height: 300px;
        background: rgba(255,255,255,0.05); border-radius: 50%;
    }
    .cta-box::after {
        content: ''; position: absolute; bottom: -40%; left: -20%; width: 250px; height: 250px;
        background: rgba(255,255,255,0.05); border-radius: 50%;
    }
    .cta-box h2 { color: #fff; font-size: 2rem; margin-bottom: 12px; position: relative; z-index: 1; }
    .cta-box p { color: rgba(255,255,255,0.9); max-width: 560px; margin: 0 auto 28px; position: relative; z-index: 1; }
    .cta-box .btn { position: relative; z-index: 1; }

    /* ===== Footer ===== */
    .footer {
        background: var(--bg-dark); color: rgba(255,255,255,0.7); padding: 56px 0 0;
    }
    .footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.08); }
    .footer-brand .logo { color: #fff; font-size: 1.4rem; }
    .footer-brand .logo span { color: var(--primary-light); }
    .footer-brand p { margin-top: 14px; font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.55); max-width: 320px; }
    .footer h4 { color: #fff; font-size: 1rem; margin-bottom: 18px; }
    .footer ul li { margin-bottom: 10px; }
    .footer ul li a { color: rgba(255,255,255,0.55); font-size: 0.9rem; transition: var(--transition); }
    .footer ul li a:hover { color: var(--primary-light); padding-left: 4px; }
    .footer-bottom { 
        display: flex; justify-content: space-between; align-items: center;
        padding: 20px 0; margin-top: 0; font-size: 0.85rem; color: rgba(255,255,255,0.4);
        flex-wrap: wrap; gap: 12px;
    }
    .footer-bottom a { color: rgba(255,255,255,0.5); }
    .footer-bottom a:hover { color: var(--primary-light); }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
        .grid-4 { grid-template-columns: repeat(2, 1fr); }
        .steps { grid-template-columns: repeat(2, 1fr); }
        .footer-top { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 768px) {
        :root { --nav-height: 64px; }
        h1 { font-size: 2rem; }
        h2 { font-size: 1.6rem; }
        .nav-wrap { position: static; }
        .nav-left { display: none; }
        .nav-right { display: none; }
        .menu-toggle { display: block; }
        .page-hero { min-height: 300px; padding: 60px 0 40px; }
        .page-hero h1 { font-size: 1.8rem; }
        .page-hero p { font-size: 1rem; }
        .section { padding: 48px 0; }
        .grid-3 { grid-template-columns: 1fr; gap: 20px; }
        .grid-2 { grid-template-columns: 1fr; gap: 20px; }
        .grid-4 { grid-template-columns: 1fr; gap: 20px; }
        .steps { grid-template-columns: 1fr; }
        .cta-box { padding: 36px 24px; }
        .cta-box h2 { font-size: 1.4rem; }
        .footer-top { grid-template-columns: 1fr; gap: 28px; }
        .footer-bottom { flex-direction: column; text-align: center; }
        .footer-brand p { max-width: 100%; }
        .rank-item { flex-wrap: wrap; }
        .rank-meta { width: 100%; text-align: left; margin-top: 4px; }
    }

    @media (max-width: 520px) {
        .container { padding: 0 16px; }
        h1 { font-size: 1.6rem; }
        .page-hero h1 { font-size: 1.5rem; }
        .section-header h2 { font-size: 1.3rem; }
        .card-body { padding: 16px; }
        .guide-cats .tag { padding: 6px 16px; font-size: 0.85rem; }
        .btn { padding: 10px 24px; font-size: 0.9rem; }
        .cta-box { padding: 28px 18px; }
        .cta-box h2 { font-size: 1.2rem; }
        .faq-q { padding: 14px 16px; font-size: 0.95rem; }
    }

    /* ===== Utility ===== */
    .text-center { text-align: center; }
    .mt-12 { margin-top: 12px; }
    .mt-24 { margin-top: 24px; }
    .mt-36 { margin-top: 36px; }
    .mb-24 { margin-bottom: 24px; }
    .gap-16 { gap: 16px; }
    .flex-center { display: flex; align-items: center; justify-content: center; }
    .w-full { width: 100%; }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #0f1b3d;
            --primary-light: #1a2a5e;
            --primary-dark: #0a1128;
            --accent: #d4a017;
            --accent-light: #e8b830;
            --accent-dark: #b8890e;
            --red: #c0392b;
            --bg: #f5f5f0;
            --bg-light: #fafaf7;
            --bg-card: #ffffff;
            --text: #1a1a2e;
            --text-light: #6c757d;
            --text-muted: #9ca3af;
            --border: #e5e7eb;
            --border-light: #f0f0eb;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== 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: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }
        ::selection { background: var(--accent); color: #fff; }

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

        /* ===== Header & Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 27, 61, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(212, 160, 23, 0.15);
            height: var(--header-height);
            transition: var(--transition);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .nav-left, .nav-right {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
        }
        .nav-right { justify-content: flex-end; }
        .nav-link {
            color: rgba(255,255,255,0.75);
            font-size: 0.9rem;
            font-weight: 500;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            letter-spacing: 0.3px;
            position: relative;
        }
        .nav-link:hover { color: #fff; background: rgba(212, 160, 23, 0.12); }
        .nav-link.active { color: var(--accent); background: rgba(212, 160, 23, 0.10); }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 1.55rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
            white-space: nowrap;
            transition: var(--transition);
        }
        .logo:hover { color: var(--accent); transform: scale(1.02); }
        .logo span { color: var(--accent); font-weight: 700; }
        .logo-center { flex-shrink: 0; margin: 0 20px; }

        /* Mobile Toggle */
        .nav-toggle {
            display: none;
            font-size: 1.5rem;
            color: #fff;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            background: none;
            border: none;
        }
        .nav-toggle:hover { background: rgba(255,255,255,0.08); }

        /* ===== Article Banner ===== */
        .article-banner {
            margin-top: var(--header-height);
            padding: 100px 0 60px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            position: relative;
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: center;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.12;
            mix-blend-mode: overlay;
        }
        .article-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, var(--bg), transparent);
        }
        .article-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .article-banner .category-badge {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 700;
            padding: 4px 16px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }
        .article-banner h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            max-width: 800px;
            margin: 0 auto 16px;
            letter-spacing: 0.5px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.3);
        }
        .article-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 24px;
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
            flex-wrap: wrap;
        }
        .article-meta i { margin-right: 6px; color: var(--accent); }
        .article-meta span { display: inline-flex; align-items: center; }

        /* ===== Article Content Area ===== */
        .article-main {
            padding: 50px 0 60px;
            background: var(--bg);
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 40px;
            align-items: start;
        }

        /* ===== Article Body ===== */
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            padding: 40px 44px;
            overflow: hidden;
        }
        .article-body .content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text);
        }
        .article-body .content p {
            margin-bottom: 1.4em;
        }
        .article-body .content h2,
        .article-body .content h3 {
            margin-top: 1.8em;
            margin-bottom: 0.8em;
            font-weight: 700;
            color: var(--primary);
        }
        .article-body .content h2 { font-size: 1.6rem; }
        .article-body .content h3 { font-size: 1.3rem; }
        .article-body .content ul,
        .article-body .content ol {
            margin-bottom: 1.4em;
            padding-left: 1.6em;
        }
        .article-body .content ul { list-style: disc; }
        .article-body .content ol { list-style: decimal; }
        .article-body .content li { margin-bottom: 0.4em; }
        .article-body .content blockquote {
            border-left: 4px solid var(--accent);
            padding: 12px 20px;
            margin: 1.4em 0;
            background: rgba(212, 160, 23, 0.06);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light);
            font-style: italic;
        }
        .article-body .content img {
            border-radius: var(--radius);
            margin: 1.6em 0;
            box-shadow: var(--shadow-sm);
        }
        .article-body .content a {
            color: var(--accent-dark);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-body .content a:hover { color: var(--accent); }

        /* ===== Article Footer ===== */
        .article-footer {
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .article-tags {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .article-tags .tag {
            display: inline-block;
            background: rgba(15, 27, 61, 0.06);
            color: var(--primary-light);
            font-size: 0.8rem;
            font-weight: 500;
            padding: 4px 14px;
            border-radius: 20px;
            transition: var(--transition);
        }
        .article-tags .tag:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-1px);
        }
        .article-share {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .article-share span { font-size: 0.85rem; color: var(--text-light); }
        .article-share a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg);
            color: var(--primary);
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .article-share a:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(212, 160, 23, 0.3);
        }

        /* ===== Sidebar ===== */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 24px 26px;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .sidebar-card:hover { box-shadow: var(--shadow); }
        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i { color: var(--accent); }
        .sidebar-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .sidebar-list li:last-child { border-bottom: none; }
        .sidebar-list a {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            color: var(--text);
            font-size: 0.95rem;
            line-height: 1.5;
            transition: var(--transition);
        }
        .sidebar-list a:hover { color: var(--accent); transform: translateX(4px); }
        .sidebar-list .num {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            background: var(--bg);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 700;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-top: 2px;
        }
        .sidebar-list .num.top { background: var(--accent); color: var(--primary); }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border: none;
        }
        .sidebar-cta h3 { color: #fff; border-bottom-color: var(--accent); }
        .sidebar-cta h3 i { color: var(--accent); }
        .sidebar-cta p { font-size: 0.9rem; color: rgba(255,255,255,0.75); margin-bottom: 16px; line-height: 1.6; }
        .sidebar-cta .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .sidebar-cta .btn:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(212, 160, 23, 0.3);
        }

        /* ===== Related Articles ===== */
        .related-section {
            padding: 60px 0;
            background: var(--bg-light);
        }
        .related-section .section-title {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            text-align: center;
            margin-bottom: 12px;
        }
        .related-section .section-sub {
            text-align: center;
            color: var(--text-light);
            margin-bottom: 40px;
            font-size: 1rem;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .related-card .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            transition: var(--transition);
        }
        .related-card:hover .card-img { transform: scale(1.05); }
        .related-card .card-body {
            padding: 18px 20px 22px;
        }
        .related-card .card-cat {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent-dark);
            background: rgba(212, 160, 23, 0.1);
            padding: 2px 12px;
            border-radius: 12px;
            margin-bottom: 8px;
        }
        .related-card .card-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: var(--transition);
        }
        .related-card:hover .card-title { color: var(--accent-dark); }
        .related-card .card-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 10px;
            display: flex;
            align-items: center;
            gap: 14px;
        }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
        }
        .not-found-box i {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .not-found-box h2 {
            font-size: 1.8rem;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-light);
            margin-bottom: 24px;
            font-size: 1.05rem;
        }
        .not-found-box .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 12px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-box .btn-back:hover {
            background: var(--accent);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(212, 160, 23, 0.2);
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            position: relative;
            overflow: hidden;
        }
        .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;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255,255,255,0.75);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.6;
        }
        .cta-section .btn-group {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cta-section .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            font-size: 1.05rem;
            transition: var(--transition);
        }
        .cta-section .btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(212, 160, 23, 0.3);
        }
        .cta-section .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.1);
            color: #fff;
            font-weight: 600;
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255,255,255,0.2);
            font-size: 1.05rem;
            transition: var(--transition);
        }
        .cta-section .btn-secondary:hover {
            background: rgba(255,255,255,0.18);
            transform: translateY(-3px);
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 0;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand .logo {
            font-size: 1.5rem;
            margin-bottom: 12px;
            display: inline-flex;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255,255,255,0.55);
            max-width: 320px;
        }
        .footer h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer ul li { margin-bottom: 10px; }
        .footer ul a {
            color: rgba(255,255,255,0.55);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer ul a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom {
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--accent); }

        /* ===== Error / Not Found ===== */
        .error-container {
            min-height: 60vh;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-top { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            :root { --header-height: 64px; }
            .container { padding: 0 16px; }
            .nav-left, .nav-right { display: none; }
            .nav-toggle { display: block; }
            .logo { font-size: 1.3rem; }
            .logo-center { margin: 0 8px; }

            .article-banner { padding: 80px 0 40px; min-height: 200px; }
            .article-banner h1 { font-size: 1.6rem; }
            .article-meta { gap: 12px; font-size: 0.8rem; flex-wrap: wrap; }

            .article-body { padding: 24px 20px; }
            .article-body .content { font-size: 0.98rem; }

            .sidebar { grid-template-columns: 1fr; }

            .related-grid { grid-template-columns: 1fr; }
            .related-section .section-title { font-size: 1.4rem; }

            .cta-section { padding: 50px 0; }
            .cta-section h2 { font-size: 1.5rem; }
            .cta-section .btn-group { flex-direction: column; gap: 12px; }
            .cta-section .btn-primary,
            .cta-section .btn-secondary { width: 100%; justify-content: center; }

            .footer-top { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; font-size: 0.75rem; }

            .article-footer { flex-direction: column; align-items: flex-start; }
            .article-share { width: 100%; justify-content: flex-start; }

            .not-found-box { padding: 50px 20px; }
            .not-found-box h2 { font-size: 1.4rem; }
        }

        @media (max-width: 520px) {
            .article-banner h1 { font-size: 1.3rem; }
            .article-body { padding: 16px 14px; }
            .article-body .content { font-size: 0.92rem; }
            .article-meta { flex-direction: column; gap: 6px; }
            .related-card .card-img { height: 150px; }
        }

        /* ===== Mobile Nav Drawer ===== */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: rgba(15, 27, 61, 0.99);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 20px 24px;
            border-bottom: 1px solid rgba(212, 160, 23, 0.1);
            z-index: 999;
            box-shadow: var(--shadow-lg);
        }
        .mobile-nav.open { display: block; }
        .mobile-nav .nav-link {
            display: block;
            padding: 12px 16px;
            font-size: 1rem;
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }
        .mobile-nav .nav-link:last-child { border-bottom: none; }
        .mobile-nav .nav-link.active { color: var(--accent); background: rgba(212, 160, 23, 0.08); border-radius: var(--radius-sm); }