/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a56db;
            --primary-dark: #0f2b5e;
            --primary-light: #e8effc;
            --accent: #f59e0b;
            --accent-light: #fef3c7;
            --bg-body: #f8fafc;
            --bg-white: #ffffff;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
            --shadow-lg: 0 12px 48px rgba(15, 23, 42, 0.10);
            --shadow-hover: 0 20px 56px rgba(15, 23, 42, 0.14);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans', sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.6;
            color: var(--text-primary);
            background: var(--bg-body);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--text-primary);
        }
        h1 {
            font-size: clamp(2rem, 5vw, 3.2rem);
        }
        h2 {
            font-size: clamp(1.5rem, 3.5vw, 2.2rem);
        }
        h3 {
            font-size: clamp(1.2rem, 2.5vw, 1.5rem);
        }
        p {
            color: var(--text-secondary);
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Section Spacing ===== */
        .section {
            padding: 80px 0;
        }
        .section-sm {
            padding: 48px 0;
        }
        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-sm {
                padding: 32px 0;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }
        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: -0.02em;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo span {
            color: var(--primary);
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .nav-main a {
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
        }
        .nav-main a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-main a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 4px;
            background: var(--primary);
        }
        .search-box {
            flex: 1;
            max-width: 480px;
            min-width: 160px;
            position: relative;
        }
        .search-box input {
            width: 100%;
            padding: 10px 20px 10px 44px;
            border-radius: 100px;
            background: var(--bg-body);
            border: 1.5px solid var(--border);
            font-size: 0.9rem;
            color: var(--text-primary);
            transition: all var(--transition);
        }
        .search-box input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(26, 86, 219, 0.12);
            background: var(--bg-white);
        }
        .search-box input::placeholder {
            color: var(--text-muted);
        }
        .search-box .search-icon {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 1rem;
            pointer-events: none;
        }
        .nav-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 4px 8px;
            background: none;
            border: none;
        }
        @media (max-width: 768px) {
            .nav-main {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.35s ease;
                z-index: 99;
            }
            .nav-main.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-main a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .nav-main a.active::after {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .search-box {
                max-width: 200px;
                min-width: 120px;
            }
            .search-box input {
                padding: 8px 14px 8px 36px;
                font-size: 0.85rem;
            }
            .search-box .search-icon {
                left: 12px;
                font-size: 0.85rem;
            }
        }
        @media (max-width: 520px) {
            .search-box {
                max-width: 140px;
                min-width: 90px;
            }
            .search-box input {
                padding: 6px 10px 6px 30px;
                font-size: 0.8rem;
            }
            .search-box .search-icon {
                left: 10px;
                font-size: 0.75rem;
            }
            .logo {
                font-size: 1.2rem;
            }
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 100px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: 1.5px solid transparent;
            cursor: pointer;
            white-space: nowrap;
            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(26, 86, 219, 0.30);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 86, 219, 0.20);
        }
        .btn-accent {
            background: var(--accent);
            color: #1e293b;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background: #d97706;
            border-color: #d97706;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.35);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 0.85rem;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
        }
        .btn:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
        }

        /* ===== Cards ===== */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: all var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .card-body {
            padding: 24px;
        }
        .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background: var(--border-light);
        }
        .card-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 100px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .card-tag-accent {
            background: var(--accent-light);
            color: #92400e;
        }

        /* ===== Badge ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 100px;
            font-size: 0.8rem;
            font-weight: 500;
            background: var(--border-light);
            color: var(--text-secondary);
        }
        .badge-primary {
            background: var(--primary-light);
            color: var(--primary);
        }
        .badge-accent {
            background: var(--accent-light);
            color: #92400e;
        }

        /* ===== Hero ===== */
        .hero {
            padding: 100px 0 80px;
            background: linear-gradient(135deg, #f0f4ff 0%, #e8effc 50%, #f8fafc 100%);
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(26, 86, 219, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.05) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 1;
            max-width: 720px;
        }
        .hero h1 {
            margin-bottom: 20px;
        }
        .hero p {
            font-size: 1.15rem;
            margin-bottom: 32px;
            max-width: 560px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        @media (max-width: 640px) {
            .hero {
                padding: 60px 0 48px;
            }
            .hero p {
                font-size: 1rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                text-align: center;
            }
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 24px 16px;
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }
        .stat-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 4px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }

        /* ===== Grid layouts ===== */
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .grid-2,
            .grid-3 {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .grid-4 {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
        }
        @media (max-width: 520px) {
            .grid-4 {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Feature / Icon blocks ===== */
        .feature-block {
            padding: 32px 24px;
            border-radius: var(--radius);
            background: var(--bg-white);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: all var(--transition);
            text-align: center;
        }
        .feature-block:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin: 0 auto 18px;
            color: #fff;
            background: var(--primary);
        }
        .feature-icon.accent {
            background: var(--accent);
        }
        .feature-icon.teal {
            background: #0d9488;
        }
        .feature-icon.purple {
            background: #7c3aed;
        }

        /* ===== FAQ ===== */
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 20px 0;
        }
        .faq-item:first-child {
            padding-top: 0;
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-primary);
            transition: color var(--transition);
            user-select: none;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            font-size: 1.2rem;
            color: var(--text-muted);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding-top: 0;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 16px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            color: #fff;
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
        }
        .cta-section h2 {
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 28px;
            max-width: 540px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
        }
        .cta-section .btn:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #1e293b;
            box-shadow: 0 8px 32px rgba(245, 158, 11, 0.30);
        }
        @media (max-width: 640px) {
            .cta-section {
                padding: 40px 24px;
                border-radius: var(--radius);
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--text-primary);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 32px;
        }
        .site-footer .logo {
            color: #fff;
        }
        .site-footer .logo span {
            color: var(--accent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-col p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            margin-top: 12px;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px 24px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* ===== Misc ===== */
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title p {
            max-width: 560px;
            margin: 12px auto 0;
            font-size: 1.05rem;
        }
        .divider {
            width: 48px;
            height: 4px;
            border-radius: 4px;
            background: var(--primary);
            margin: 16px auto;
        }
        .text-gradient {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .link-arrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            color: var(--primary);
            transition: gap var(--transition);
        }
        .link-arrow:hover {
            gap: 12px;
            color: var(--primary-dark);
        }

        /* news list item */
        .news-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
            align-items: flex-start;
        }
        .news-item:first-child {
            padding-top: 0;
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-meta {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 6px;
        }
        .news-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .news-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            transition: color var(--transition);
            display: inline-block;
        }
        .news-title:hover {
            color: var(--primary);
        }
        .news-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        @media (max-width: 520px) {
            .news-item {
                flex-direction: column;
                gap: 12px;
            }
        }

        /* focus visible */
        *:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
        }

        /* empty state */
        .empty-state {
            text-align: center;
            padding: 40px 24px;
            color: var(--text-muted);
            font-size: 1rem;
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
        }

/* roulang page: article */
:root {
            --primary: #146eff;
            --primary-dark: #0d58e0;
            --accent: #ed8616;
            --bg-body: #f8fafc;
            --text-body: #1e293b;
            --text-muted: #64748b;
            --border-light: #e2e8f0;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.10);
            --radius: 0.75rem;
            --radius-lg: 1rem;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body { font-family: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif; background: var(--bg-body); color: var(--text-body); line-height: 1.7; -webkit-font-smoothing: antialiased; }
        a { color: inherit; text-decoration: none; transition: color 0.2s; }
        img { max-width: 100%; height: auto; display: block; }
        button { cursor: pointer; font-family: inherit; }
        input { font-family: inherit; }

        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

        /* ===== Header ===== */
        .site-header { background: #fff; border-bottom: 1px solid var(--border-light); position: sticky; top: 0; z-index: 100; backdrop-filter: blur(12px); background: rgba(255,255,255,0.92); }
        .header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
        .logo { font-size: 1.6rem; font-weight: 700; letter-spacing: -0.02em; color: #0f172a; display: flex; align-items: center; gap: 2px; }
        .logo span { color: var(--primary); }
        .search-box { flex: 1; max-width: 420px; position: relative; display: none; }
        .search-box .search-icon { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); color: var(--text-muted); font-size: 0.95rem; pointer-events: none; }
        .search-box input { width: 100%; height: 44px; padding: 0 16px 0 44px; border: 1.5px solid var(--border-light); border-radius: 999px; background: #f1f5f9; font-size: 0.95rem; outline: none; transition: all 0.25s; }
        .search-box input:focus { border-color: var(--primary); background: #fff; box-shadow: 0 0 0 4px rgba(20,110,255,0.10); }
        .search-box input::placeholder { color: #94a3b8; }
        .nav-main { display: flex; align-items: center; gap: 8px; }
        .nav-main a { padding: 8px 18px; border-radius: 999px; font-size: 0.95rem; font-weight: 500; color: var(--text-muted); transition: all 0.2s; position: relative; }
        .nav-main a:hover { color: var(--primary); background: rgba(20,110,255,0.06); }
        .nav-main a.active { color: #fff; background: var(--primary); box-shadow: 0 2px 8px rgba(20,110,255,0.30); }
        .nav-toggle { display: none; background: none; border: none; font-size: 1.4rem; color: var(--text-body); padding: 8px; border-radius: 8px; }

        /* ===== Article Hero ===== */
        .article-hero { padding: 48px 0 32px; background: linear-gradient(135deg, #f0f4ff 0%, #e8f0fe 100%); }
        .article-hero .container { max-width: 800px; }
        .article-category { display: inline-block; padding: 4px 14px; border-radius: 999px; background: rgba(20,110,255,0.12); color: var(--primary); font-size: 0.82rem; font-weight: 600; letter-spacing: 0.3px; margin-bottom: 16px; }
        .article-title { font-size: 2.2rem; font-weight: 700; line-height: 1.3; color: #0f172a; margin-bottom: 16px; letter-spacing: -0.01em; }
        .article-meta { display: flex; flex-wrap: wrap; gap: 12px 24px; color: var(--text-muted); font-size: 0.92rem; align-items: center; }
        .article-meta i { margin-right: 6px; width: 16px; text-align: center; color: #94a3b8; }
        .article-meta .meta-item { display: flex; align-items: center; }

        /* ===== Article Body ===== */
        .article-section { padding: 40px 0 64px; }
        .article-section .container { max-width: 800px; }
        .article-body { background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); padding: 40px 48px; border: 1px solid var(--border-light); }
        .article-body p { margin-bottom: 1.4em; font-size: 1.05rem; color: #1e293b; }
        .article-body h2 { font-size: 1.6rem; font-weight: 700; margin: 1.8em 0 0.8em; color: #0f172a; }
        .article-body h3 { font-size: 1.25rem; font-weight: 600; margin: 1.4em 0 0.6em; color: #1e293b; }
        .article-body ul, .article-body ol { margin: 0 0 1.4em 1.6em; font-size: 1.05rem; color: #1e293b; }
        .article-body li { margin-bottom: 0.4em; }
        .article-body blockquote { border-left: 4px solid var(--primary); padding: 12px 20px; margin: 1.4em 0; background: #f8faff; border-radius: 0 8px 8px 0; color: #334155; font-style: normal; }
        .article-body img { border-radius: var(--radius); margin: 1.6em 0; box-shadow: var(--shadow-sm); }
        .article-body a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
        .article-body a:hover { color: var(--primary-dark); }
        .article-body code { background: #f1f5f9; padding: 2px 8px; border-radius: 4px; font-size: 0.92em; color: #0f172a; }

        .article-nav { display: flex; justify-content: space-between; gap: 16px; margin-top: 40px; padding-top: 32px; border-top: 1px solid var(--border-light); flex-wrap: wrap; }
        .article-nav a { display: inline-flex; align-items: center; gap: 8px; padding: 10px 20px; border-radius: 999px; background: #f1f5f9; font-weight: 500; font-size: 0.95rem; transition: all 0.2s; color: var(--text-body); }
        .article-nav a:hover { background: var(--primary); color: #fff; box-shadow: 0 4px 12px rgba(20,110,255,0.25); }
        .article-nav a.disabled { opacity: 0.4; pointer-events: none; }

        .not-found { text-align: center; padding: 80px 20px; background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); border: 1px solid var(--border-light); }
        .not-found i { font-size: 3rem; color: #94a3b8; margin-bottom: 20px; }
        .not-found h2 { font-size: 1.8rem; font-weight: 700; color: #0f172a; margin-bottom: 12px; }
        .not-found p { color: var(--text-muted); margin-bottom: 24px; }
        .not-found a { display: inline-block; padding: 10px 28px; border-radius: 999px; background: var(--primary); color: #fff; font-weight: 600; transition: all 0.2s; }
        .not-found a:hover { background: var(--primary-dark); box-shadow: 0 4px 16px rgba(20,110,255,0.30); transform: translateY(-2px); }

        /* ===== Footer ===== */
        .site-footer { background: #0f172a; color: rgba(255,255,255,0.75); padding: 56px 0 0; }
        .footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; }
        .footer-col .logo { font-size: 1.5rem; color: #fff; margin-bottom: 12px; }
        .footer-col .logo span { color: #60a5fa; }
        .footer-col p { font-size: 0.92rem; line-height: 1.7; color: rgba(255,255,255,0.55); margin-top: 8px; }
        .footer-col h4 { font-size: 1rem; font-weight: 600; color: #fff; margin-bottom: 16px; letter-spacing: 0.3px; }
        .footer-col a { display: block; padding: 5px 0; font-size: 0.92rem; color: rgba(255,255,255,0.55); transition: all 0.2s; }
        .footer-col a:hover { color: #60a5fa; padding-left: 4px; }
        .footer-bottom { margin-top: 40px; padding: 20px 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 (min-width: 768px) {
            .search-box { display: block; }
        }
        @media (max-width: 1023px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media (max-width: 767px) {
            .nav-main { display: none; flex-direction: column; position: absolute; top: 72px; left: 0; right: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(12px); padding: 16px 24px 24px; box-shadow: 0 12px 32px rgba(0,0,0,0.12); border-radius: 0 0 var(--radius-lg) var(--radius-lg); gap: 4px; }
            .nav-main.open { display: flex; }
            .nav-toggle { display: block; }
            .search-box { display: block; max-width: 100%; }
            .header-inner { flex-wrap: wrap; height: auto; padding: 12px 0; gap: 12px; }
            .header-inner .logo { order: 0; }
            .header-inner .nav-toggle { order: 1; }
            .header-inner .search-box { order: 2; flex: 0 0 100%; display: block; }
            .header-inner .nav-main { order: 3; flex: 0 0 100%; }
            .article-title { font-size: 1.6rem; }
            .article-body { padding: 24px 20px; }
            .article-body p { font-size: 1rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .article-hero { padding: 32px 0 24px; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .article-title { font-size: 1.35rem; }
            .article-body { padding: 16px; }
            .article-meta { gap: 8px 16px; font-size: 0.85rem; }
            .article-nav { flex-direction: column; align-items: stretch; }
            .article-nav a { justify-content: center; }
            .not-found { padding: 48px 16px; }
            .not-found h2 { font-size: 1.4rem; }
        }

/* roulang page: category1 */
:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #3b82f6;
            --accent: #f59e0b;
            --bg-dark: #0f172a;
            --bg-card: #ffffff;
            --text-dark: #1e293b;
            --text-muted: #64748b;
            --border-light: #e2e8f0;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
            --radius: 12px;
            --radius-sm: 8px;
            --transition: all 0.3s ease;
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            color: var(--text-dark);
            background: #f8fafc;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            display: block;
        }
        input,
        button {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 50;
            padding: 0 20px;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            text-decoration: none;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .logo span {
            color: var(--accent);
            font-weight: 700;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: #f1f5f9;
            border-radius: 24px;
            padding: 8px 18px;
            width: 320px;
            transition: var(--transition);
            border: 1px solid transparent;
            flex-shrink: 1;
        }
        .search-box:focus-within {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
        }
        .search-box .search-icon {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-right: 10px;
            flex-shrink: 0;
        }
        .search-box input {
            border: none;
            background: transparent;
            outline: none;
            width: 100%;
            font-size: 0.9rem;
            color: var(--text-dark);
        }
        .search-box input::placeholder {
            color: #94a3b8;
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 32px;
            flex-shrink: 0;
        }
        .nav-main a {
            text-decoration: none;
            color: var(--text-muted);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
        }
        .nav-main a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--transition);
            border-radius: 1px;
        }
        .nav-main a:hover {
            color: var(--primary);
        }
        .nav-main a:hover::after {
            width: 100%;
        }
        .nav-main a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-main a.active::after {
            width: 100%;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--text-dark);
            cursor: pointer;
            padding: 4px 8px;
            flex-shrink: 0;
        }
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.85);
            padding: 60px 20px 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr 1fr;
            gap: 40px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .footer-col .logo {
            font-size: 1.4rem;
            color: #fff;
        }
        .footer-col .logo span {
            color: var(--accent);
        }
        .footer-col p {
            font-size: 0.9rem;
            line-height: 1.7;
            margin-top: 12px;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            font-size: 0.9rem;
            margin-bottom: 10px;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary-light);
        }
        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            margin-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
        }
        .page-hero {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            padding: 60px 0 80px;
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(37, 99, 235, 0.08);
            pointer-events: none;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(245, 158, 11, 0.05);
            pointer-events: none;
        }
        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
            letter-spacing: -0.5px;
        }
        .page-hero p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 600px;
            line-height: 1.7;
            position: relative;
            z-index: 1;
        }
        .page-hero .breadcrumb {
            display: flex;
            gap: 8px;
            align-items: center;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
            flex-wrap: wrap;
        }
        .page-hero .breadcrumb a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: var(--transition);
        }
        .page-hero .breadcrumb a:hover {
            color: #fff;
        }
        .page-hero .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.3);
        }
        .section {
            padding: 60px 0;
        }
        .section-title {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 8px;
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            margin-bottom: 32px;
            max-width: 600px;
        }
        .filter-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 40px;
        }
        .filter-tabs a {
            padding: 8px 20px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 500;
            text-decoration: none;
            transition: var(--transition);
            background: #fff;
            color: var(--text-muted);
            border: 1px solid var(--border-light);
        }
        .filter-tabs a:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(37, 99, 235, 0.05);
        }
        .filter-tabs a.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .featured-article {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            display: grid;
            grid-template-columns: 1fr 1fr;
            min-height: 380px;
            transition: var(--transition);
        }
        .featured-article:hover {
            box-shadow: var(--shadow-lg);
        }
        .featured-article .featured-img {
            background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 4rem;
            color: var(--primary);
            min-height: 240px;
        }
        .featured-article .featured-body {
            padding: 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-article .featured-body .badge {
            display: inline-block;
            background: rgba(245, 158, 11, 0.15);
            color: #b45309;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 12px;
            align-self: flex-start;
        }
        .featured-article .featured-body h2 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .featured-article .featured-body p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .article-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .article-card .card-img {
            height: 200px;
            background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.5rem;
            color: var(--primary);
            position: relative;
            overflow: hidden;
            flex-shrink: 0;
        }
        .article-card .card-img .tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--primary);
            color: #fff;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 500;
        }
        .article-card .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .article-card .card-body .meta {
            display: flex;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .article-card .card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.5;
            color: var(--text-dark);
        }
        .article-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
        }
        .article-card .card-body .read-more {
            margin-top: 16px;
            color: var(--primary);
            font-weight: 500;
            font-size: 0.9rem;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .article-card .card-body .read-more:hover {
            gap: 10px;
            color: var(--primary-dark);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .stat-card .number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-card .label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 8px;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }
        .tag-cloud a {
            padding: 8px 22px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 500;
            text-decoration: none;
            background: #fff;
            color: var(--text-muted);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .tag-cloud a:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(37, 99, 235, 0.05);
            transform: translateY(-2px);
        }
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius);
            padding: 60px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -20%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 1.05rem;
            opacity: 0.9;
            max-width: 600px;
            margin: 0 auto 28px;
            position: relative;
            z-index: 1;
        }
        .cta-section .btn-white {
            background: #fff;
            color: var(--primary);
            padding: 14px 40px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            text-decoration: none;
            display: inline-block;
            transition: var(--transition);
            position: relative;
            z-index: 1;
            border: none;
            cursor: pointer;
        }
        .cta-section .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
        }
        .faq-grid {
            display: grid;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            padding: 20px 24px;
            transition: var(--transition);
            cursor: pointer;
        }
        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .faq-item .question {
            font-weight: 600;
            font-size: 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            user-select: none;
        }
        .faq-item .question i {
            color: var(--text-muted);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item .answer {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-top: 12px;
            display: none;
        }
        .faq-item.active .answer {
            display: block;
        }
        .faq-item.active .question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .pagination {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 48px;
            flex-wrap: wrap;
        }
        .pagination a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 500;
            text-decoration: none;
            color: var(--text-muted);
            background: #fff;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .pagination a:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .pagination a.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .pagination a.next {
            width: auto;
            padding: 0 16px;
            gap: 4px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            text-decoration: none;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .text-center {
            text-align: center;
        }
        .mt-8 {
            margin-top: 32px;
        }
        .mb-8 {
            margin-bottom: 32px;
        }
        .gap-4 {
            gap: 16px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        @media (max-width: 1024px) {
            .article-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-article {
                grid-template-columns: 1fr;
            }
            .featured-article .featured-img {
                height: 220px;
                min-height: 200px;
            }
            .page-hero h1 {
                font-size: 2.4rem;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                height: 60px;
            }
            .search-box {
                width: 200px;
                padding: 6px 14px;
            }
            .search-box input {
                font-size: 0.8rem;
            }
            .nav-main {
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                -webkit-backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 20px;
                gap: 16px;
                border-bottom: 1px solid var(--border-light);
                transform: translateY(-120%);
                transition: var(--transition);
                box-shadow: var(--shadow-lg);
                z-index: 40;
            }
            .nav-main.open {
                transform: translateY(0);
            }
            .nav-toggle {
                display: block;
            }
            .page-hero {
                padding: 40px 0 60px;
            }
            .page-hero h1 {
                font-size: 2rem;
            }
            .page-hero p {
                font-size: 1rem;
            }
            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .featured-article .featured-body {
                padding: 24px;
            }
            .featured-article .featured-body h2 {
                font-size: 1.3rem;
            }
            .cta-section {
                padding: 40px 24px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-card {
                padding: 20px 16px;
            }
            .stat-card .number {
                font-size: 1.8rem;
            }
            .grid-2 {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .search-box {
                width: 120px;
                padding: 4px 12px;
            }
            .search-box .search-icon {
                margin-right: 6px;
                font-size: 0.8rem;
            }
            .search-box input {
                font-size: 0.75rem;
            }
            .logo {
                font-size: 1.2rem;
            }
            .page-hero h1 {
                font-size: 1.6rem;
            }
            .page-hero .breadcrumb {
                font-size: 0.8rem;
            }
            .article-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .article-card .card-img {
                height: 180px;
            }
            .filter-tabs {
                gap: 8px;
            }
            .filter-tabs a {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 16px 12px;
            }
            .stat-card .number {
                font-size: 1.5rem;
            }
            .stat-card .label {
                font-size: 0.8rem;
            }
            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-sm);
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .cta-section .btn-white {
                padding: 12px 28px;
                font-size: 0.9rem;
            }
            .faq-item {
                padding: 16px 18px;
            }
            .faq-item .question {
                font-size: 0.9rem;
            }
            .pagination a {
                width: 36px;
                height: 36px;
                font-size: 0.8rem;
            }
            .pagination a.next {
                width: auto;
                padding: 0 12px;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .section-subtitle {
                font-size: 0.9rem;
            }
        }