/* roulang page: index */
:root {
            --primary: #0b1a2e;
            --primary-light: #132a45;
            --primary-lighter: #1a3558;
            --accent: #c8923a;
            --accent-light: #d9a752;
            --accent-glow: #e8c376;
            --bg: #ffffff;
            --bg-secondary: #f4f5f8;
            --bg-tertiary: #eef0f4;
            --bg-dark: #0b1a2e;
            --bg-card: #ffffff;
            --text: #1a1d26;
            --text-secondary: #4a505e;
            --text-light: #7d8492;
            --text-on-dark: #e8eaef;
            --text-on-primary: #ffffff;
            --border: #dfe2e8;
            --border-light: #eceef3;
            --radius-xs: 6px;
            --radius-sm: 10px;
            --radius: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 56px rgba(0, 0, 0, 0.13);
            --sidebar-width: 250px;
            --sidebar-width-tablet: 200px;
            --header-mobile-height: 60px;
            --transition-fast: 0.15s ease;
            --transition: 0.25s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1.2);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
            --max-content-width: 1100px;
        }

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

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

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

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

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

        /* ============ SIDEBAR NAVIGATION ============ */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-dark);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition-slow), width var(--transition);
            overflow-y: auto;
            overflow-x: hidden;
            box-shadow: 2px 0 30px rgba(0, 0, 0, 0.18);
        }

        .sidebar-logo {
            padding: 28px 24px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .sidebar-logo a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.02em;
        }

        .sidebar-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-xs);
            background: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #fff;
            flex-shrink: 0;
        }

        .sidebar-nav {
            flex: 1;
            padding: 16px 14px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .sidebar-nav .nav-label {
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: rgba(255, 255, 255, 0.35);
            padding: 10px 10px 6px;
            font-weight: 600;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            position: relative;
        }

        .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #ffffff;
        }

        .sidebar-nav a.active {
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(200, 146, 58, 0.35);
        }

        .sidebar-nav a .nav-icon {
            width: 20px;
            text-align: center;
            flex-shrink: 0;
            font-size: 0.85rem;
        }

        .sidebar-footer {
            padding: 16px 20px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .sidebar-footer .footer-info {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.4);
            line-height: 1.6;
        }

        /* ============ MOBILE HEADER ============ */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-mobile-height);
            background: var(--bg-dark);
            z-index: 999;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.15);
        }

        .mobile-header .mobile-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
        }

        .mobile-header .mobile-logo .logo-icon {
            width: 30px;
            height: 30px;
            border-radius: 6px;
            background: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: #fff;
            flex-shrink: 0;
        }

        .hamburger-btn {
            width: 40px;
            height: 40px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            border-radius: var(--radius-xs);
            transition: background var(--transition-fast);
            z-index: 1001;
        }

        .hamburger-btn:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        .hamburger-btn span {
            display: block;
            width: 22px;
            height: 2px;
            background: #fff;
            border-radius: 1px;
            transition: all var(--transition);
        }

        .hamburger-btn.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger-btn.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger-btn.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ============ OVERLAY ============ */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 998;
            transition: opacity var(--transition);
        }
        .sidebar-overlay.visible {
            display: block;
        }

        /* ============ MAIN CONTENT ============ */
        .main-wrapper {
            margin-left: var(--sidebar-width);
            flex: 1;
            display: flex;
            flex-direction: column;
            transition: margin-left var(--transition);
            min-height: 100vh;
        }

        .container {
            max-width: var(--max-content-width);
            margin: 0 auto;
            padding: 0 32px;
            width: 100%;
        }

        /* ============ HERO SECTION ============ */
        .hero {
            position: relative;
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 64px 0 72px;
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.22;
            z-index: 0;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(160deg, rgba(11, 26, 46, 0.88) 0%, rgba(11, 26, 46, 0.65) 50%, rgba(19, 42, 69, 0.7) 100%);
            z-index: 1;
        }

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

        .hero-content {
            max-width: 720px;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(200, 146, 58, 0.2);
            border: 1px solid rgba(200, 146, 58, 0.4);
            color: var(--accent-glow);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 20px;
        }

        .hero h1 {
            font-size: 3rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
            line-height: 1.2;
        }

        .hero h1 .accent-word {
            color: var(--accent-glow);
        }

        .hero-subtitle {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 24px;
            font-weight: 400;
            line-height: 1.6;
        }

        .hero-desc {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 650px;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition);
            white-space: nowrap;
            cursor: pointer;
            border: 2px solid transparent;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
            box-shadow: 0 4px 18px rgba(200, 146, 58, 0.35);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            box-shadow: 0 6px 24px rgba(200, 146, 58, 0.45);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 3px 12px rgba(200, 146, 58, 0.3);
        }

        .btn-outline {
            background: transparent;
            color: #ffffff;
            border-color: rgba(255, 255, 255, 0.45);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
            border-radius: 40px;
        }

        .btn-text {
            padding: 8px 4px;
            border: none;
            background: none;
            color: var(--accent);
            font-weight: 600;
            gap: 4px;
            border-radius: 0;
            box-shadow: none;
        }
        .btn-text:hover {
            color: var(--accent-light);
            transform: none;
            box-shadow: none;
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        /* ============ SECTION COMMONS ============ */
        .section {
            padding: 64px 0;
        }
        .section-alt {
            background: var(--bg-secondary);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-on-dark);
        }
        .section-dark h2,
        .section-dark h3 {
            color: #fff;
        }
        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.65);
        }

        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .section-header .accent-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            margin-bottom: 6px;
        }

        /* ============ STATS CARDS ============ */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px 22px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border);
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            margin-bottom: 4px;
        }
        .stat-number .accent {
            color: var(--accent);
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }
        .stat-icon {
            font-size: 1.8rem;
            margin-bottom: 10px;
            color: var(--accent);
        }

        /* ============ ADVANTAGE CARDS ============ */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .adv-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            text-align: center;
        }
        .adv-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .adv-card .adv-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(200, 146, 58, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.5rem;
            color: var(--accent);
            transition: all var(--transition);
        }
        .adv-card:hover .adv-icon {
            background: var(--accent);
            color: #fff;
        }
        .adv-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }
        .adv-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ============ BRAND STORY ============ */
        .story-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .story-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .story-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 4/3;
        }
        .story-text h3 {
            font-size: 1.6rem;
            margin-bottom: 14px;
            font-weight: 700;
        }
        .story-text p {
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
            font-size: 0.95rem;
        }

        /* ============ CATEGORY CARDS ============ */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .cat-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .cat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .cat-card-img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            display: block;
        }
        .cat-card-body {
            padding: 18px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .cat-card-body h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
        }
        .cat-card-body p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.5;
            flex: 1;
        }
        .cat-card-body .btn-text {
            margin-top: 10px;
            align-self: flex-start;
            font-size: 0.85rem;
        }

        /* ============ MATCH CARDS ============ */
        .match-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .match-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .match-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .match-card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            display: block;
        }
        .match-card-body {
            padding: 16px;
        }
        .match-card-body .match-date {
            font-size: 0.78rem;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 4px;
        }
        .match-card-body h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .match-card-body p {
            font-size: 0.84rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }
        .match-teams {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 6px;
            color: var(--text);
        }
        .match-teams .vs {
            color: var(--accent);
            font-weight: 700;
        }

        /* ============ TESTIMONIALS ============ */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .testimonial-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }
        .testimonial-card .quote-mark {
            font-size: 3rem;
            color: var(--accent);
            opacity: 0.4;
            line-height: 1;
            margin-bottom: 8px;
            font-family: Georgia, serif;
        }
        .testimonial-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .testimonial-card .author {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text);
        }
        .testimonial-card .author-role {
            font-size: 0.78rem;
            color: var(--text-light);
        }

        /* ============ FAQ ============ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-xs);
        }
        .faq-item:hover {
            border-color: var(--border);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: all var(--transition-fast);
            cursor: pointer;
            background: none;
            border: none;
            font-family: inherit;
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-question .faq-arrow {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            transition: transform var(--transition);
            color: var(--text-light);
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
        }
        .faq-answer-inner {
            padding: 0 20px 20px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ============ NEWS LIST ============ */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 850px;
            margin: 0 auto;
        }
        .news-item {
            display: flex;
            gap: 18px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 18px 20px;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            align-items: flex-start;
        }
        .news-item:hover {
            box-shadow: var(--shadow);
            transform: translateX(3px);
            border-color: var(--border);
        }
        .news-date {
            flex-shrink: 0;
            background: var(--bg-tertiary);
            padding: 8px 12px;
            border-radius: var(--radius-xs);
            text-align: center;
            font-weight: 700;
            font-size: 0.8rem;
            color: var(--text-secondary);
            min-width: 52px;
            line-height: 1.3;
        }
        .news-date .day {
            font-size: 1.3rem;
            color: var(--accent);
            display: block;
        }
        .news-content h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text);
        }
        .news-content p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.5;
            margin-bottom: 6px;
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            background: var(--bg-dark);
            text-align: center;
            padding: 60px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 2rem;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 28px;
            font-size: 1rem;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn-primary {
            font-size: 1rem;
            padding: 15px 36px;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.7);
            padding: 36px 0;
            font-size: 0.85rem;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }
        .footer-brand {
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
        }
        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
            font-size: 0.85rem;
        }
        .footer-links a:hover {
            color: var(--accent-glow);
        }
        .footer-copy {
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.8rem;
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1200px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .match-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 1024px) {
            .sidebar {
                width: var(--sidebar-width-tablet);
            }
            .main-wrapper {
                margin-left: var(--sidebar-width-tablet);
            }
            .hero h1 {
                font-size: 2.4rem;
            }
            .story-block {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .story-image {
                order: -1;
            }
            .container {
                padding: 0 24px;
            }
            .section {
                padding: 48px 0;
            }
        }

        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
                width: 280px;
                box-shadow: 4px 0 40px rgba(0, 0, 0, 0.3);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .sidebar-overlay.visible {
                display: block;
            }
            .mobile-header {
                display: flex;
            }
            .main-wrapper {
                margin-left: 0;
                padding-top: var(--header-mobile-height);
            }
            .hero {
                padding: 40px 0 48px;
                min-height: auto;
            }
            .hero h1 {
                font-size: 1.9rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .category-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .match-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .cards-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .news-item {
                flex-direction: column;
                gap: 8px;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 36px 0;
            }
            .footer-inner {
                flex-direction: column;
                text-align: center;
            }
            .footer-links {
                justify-content: center;
            }
            .btn {
                padding: 11px 22px;
                font-size: 0.9rem;
            }
            .stat-number {
                font-size: 2rem;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.5rem;
            }
            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .category-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
        }

        /* Focus outline for accessibility */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

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

/* roulang page: category1 */
:root {
            --primary: #1B3A5C;
            --primary-light: #264D73;
            --primary-dark: #0F2440;
            --accent: #C89B3C;
            --accent-light: #DAB964;
            --accent-dark: #A67C2E;
            --bg: #F8F7F4;
            --bg-white: #FFFFFF;
            --bg-light: #F0EFEC;
            --bg-dark: #1A1F2B;
            --text: #2D2D2D;
            --text-light: #5A5A5A;
            --text-muted: #7D8899;
            --text-on-dark: #E8E6E0;
            --border: #E2E0DA;
            --border-light: #EDEBE6;
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --sidebar-width: 260px;
            --topbar-height: 56px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        input {
            font-family: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

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

        .container {
            width: 100%;
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 28px;
        }

        /* ===== SIDEBAR ===== */
        .app-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            height: 100dvh;
            background: var(--bg-white);
            border-right: 1px solid var(--border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition), box-shadow var(--transition);
            box-shadow: var(--shadow-xs);
            overflow-y: auto;
            overflow-x: hidden;
        }

        .sidebar-logo {
            padding: 28px 24px 20px;
            border-bottom: 1px solid var(--border-light);
            flex-shrink: 0;
        }

        .sidebar-logo a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.02em;
        }

        .sidebar-logo .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        .sidebar-nav {
            flex: 1;
            padding: 16px 14px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .sidebar-nav .nav-label {
            display: block;
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--text-muted);
            padding: 8px 12px 6px;
            font-weight: 600;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: var(--radius);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .sidebar-nav a .nav-icon {
            font-size: 1.1rem;
            flex-shrink: 0;
            width: 28px;
            text-align: center;
        }

        .sidebar-nav a:hover {
            background: var(--bg-light);
            color: var(--primary);
        }

        .sidebar-nav a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: var(--shadow-sm);
        }

        .sidebar-nav a.active:hover {
            background: var(--primary-light);
            color: #fff;
        }

        .sidebar-footer-note {
            padding: 16px 24px;
            border-top: 1px solid var(--border-light);
            font-size: 0.78rem;
            color: var(--text-muted);
            flex-shrink: 0;
            text-align: center;
            line-height: 1.5;
        }

        /* ===== TOPBAR (mobile) ===== */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--topbar-height);
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            z-index: 999;
            align-items: center;
            padding: 0 16px;
            gap: 12px;
            box-shadow: var(--shadow-xs);
        }

        .mobile-topbar .topbar-logo {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--primary);
            flex: 1;
        }

        .hamburger-btn {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--text);
            background: var(--bg-light);
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .hamburger-btn:hover {
            background: var(--border);
        }

        .hamburger-btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== OVERLAY ===== */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition);
            pointer-events: none;
        }

        .sidebar-overlay.show {
            opacity: 1;
            pointer-events: auto;
        }

        /* ===== MAIN CONTENT ===== */
        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            transition: margin-left var(--transition);
        }

        /* ===== BREADCRUMB ===== */
        .breadcrumb-bar {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            padding: 12px 0;
        }
        .breadcrumb-bar .container {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb-bar a {
            color: var(--text-muted);
        }
        .breadcrumb-bar a:hover {
            color: var(--accent);
        }
        .breadcrumb-bar .sep {
            color: var(--border);
            font-size: 0.7rem;
        }
        .breadcrumb-bar .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* ===== PAGE BANNER ===== */
        .page-banner {
            position: relative;
            background: var(--primary-dark) url('assets/images/backpic/back-1.webp') center/cover no-repeat;
            background-blend-mode: overlay;
            min-height: 280px;
            display: flex;
            align-items: center;
            color: #fff;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 36, 64, 0.88) 0%, rgba(27, 58, 92, 0.72) 50%, rgba(15, 36, 64, 0.80) 100%);
            z-index: 1;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            padding-top: 40px;
            padding-bottom: 40px;
        }
        .page-banner .banner-badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 0.82rem;
            padding: 6px 16px;
            border-radius: 20px;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }
        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: 0.01em;
        }
        .page-banner .banner-sub {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            line-height: 1.6;
        }

        /* ===== SECTION ===== */
        .section {
            padding: 56px 0;
        }
        .section-sm {
            padding: 40px 0;
        }
        .section-alt {
            background: var(--bg-white);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-on-dark);
        }
        .section-dark h2,
        .section-dark h3 {
            color: #fff;
        }
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-header h2 {
            font-size: 1.9rem;
            font-weight: 800;
            margin-bottom: 8px;
            color: var(--primary);
        }
        .section-header .section-subtitle {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 580px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .section-dark .section-header h2 {
            color: #fff;
        }
        .section-dark .section-header .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }

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

        .card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 0;
            overflow: hidden;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border);
        }
        .card-image {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .card-body {
            padding: 22px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--primary);
        }
        .card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
        }
        .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 14px;
            background: var(--bg-light);
            color: var(--accent-dark);
            margin-bottom: 10px;
            letter-spacing: 0.03em;
            align-self: flex-start;
        }
        .card-icon-circle {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.4rem;
            margin-bottom: 14px;
            flex-shrink: 0;
        }

        /* ===== STATS ROW ===== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 6px;
            letter-spacing: -0.02em;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ===== METHODOLOGY STEPS ===== */
        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            max-width: 760px;
            margin: 0 auto;
        }
        .step-item {
            display: flex;
            gap: 18px;
            align-items: flex-start;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 22px 24px;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .step-item:hover {
            box-shadow: var(--shadow);
        }
        .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .step-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .step-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== MATCH LIST ===== */
        .match-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 860px;
            margin: 0 auto;
        }
        .match-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 18px 22px;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            flex-wrap: wrap;
        }
        .match-item:hover {
            box-shadow: var(--shadow);
            border-color: var(--border);
        }
        .match-date {
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--accent-dark);
            background: var(--bg-light);
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .match-teams {
            font-weight: 700;
            font-size: 1rem;
            color: var(--primary);
            flex: 1;
            min-width: 140px;
        }
        .match-league {
            font-size: 0.8rem;
            color: var(--text-muted);
            background: var(--bg-light);
            padding: 4px 10px;
            border-radius: 12px;
            white-space: nowrap;
        }
        .match-prediction-badge {
            font-weight: 600;
            font-size: 0.82rem;
            padding: 7px 14px;
            border-radius: 16px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .badge-home {
            background: #E8F5E9;
            color: #2E7D32;
        }
        .badge-draw {
            background: #FFF8E1;
            color: #F57F17;
        }
        .badge-away {
            background: #E3F2FD;
            color: #1565C0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-xs);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            background: transparent;
            cursor: pointer;
            transition: all var(--transition);
            line-height: 1.4;
        }
        .faq-question:hover {
            background: var(--bg-light);
        }
        .faq-question:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: -2px;
        }
        .faq-icon {
            font-size: 1.2rem;
            color: var(--accent);
            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 0.4s ease;
            padding: 0 22px;
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 22px 20px;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-xl);
            padding: 48px 36px;
            text-align: center;
            color: #fff;
            box-shadow: var(--shadow-lg);
        }
        .cta-block h3 {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 8px;
        }
        .cta-block p {
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 20px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }
        .btn {
            display: inline-block;
            padding: 13px 28px;
            border-radius: 28px;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition);
            cursor: pointer;
            text-align: center;
            border: 2px solid transparent;
            line-height: 1.3;
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            box-shadow: 0 6px 20px rgba(200, 155, 60, 0.35);
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.5);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 36px 0;
            margin-top: auto;
        }
        .footer-inner {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 16px;
            text-align: center;
        }
        .footer-brand {
            font-weight: 800;
            font-size: 1.2rem;
            color: #fff;
            letter-spacing: 0.03em;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            justify-content: center;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent-light);
        }
        .footer-copy {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.6;
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .cards-grid.cols-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .page-banner h1 {
                font-size: 2.1rem;
            }
            .section {
                padding: 40px 0;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 768px) {
            .app-sidebar {
                transform: translateX(-100%);
                box-shadow: none;
            }
            .app-sidebar.open {
                transform: translateX(0);
                box-shadow: var(--shadow-xl);
            }
            .sidebar-overlay {
                display: block;
            }
            .mobile-topbar {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                padding-top: var(--topbar-height);
            }
            .breadcrumb-bar {
                display: none;
            }
            .page-banner {
                min-height: 200px;
            }
            .page-banner h1 {
                font-size: 1.7rem;
            }
            .page-banner .banner-sub {
                font-size: 0.9rem;
            }
            .cards-grid,
            .cards-grid.cols-2,
            .cards-grid.cols-4 {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .match-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .match-teams {
                min-width: auto;
            }
            .section {
                padding: 32px 0;
            }
            .section-header {
                margin-bottom: 28px;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .container {
                padding: 0 16px;
            }
            .cta-block {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-block h3 {
                font-size: 1.3rem;
            }
            .step-item {
                flex-direction: column;
                gap: 12px;
                padding: 18px 16px;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
            }
        }

        @media (max-width: 520px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 18px 12px;
            }
            .stat-number {
                font-size: 1.7rem;
            }
            .stat-label {
                font-size: 0.78rem;
            }
            .page-banner h1 {
                font-size: 1.4rem;
            }
            .page-banner {
                min-height: 170px;
            }
            .page-banner .container {
                padding-top: 24px;
                padding-bottom: 24px;
            }
            .btn {
                padding: 11px 20px;
                font-size: 0.85rem;
            }
            .footer-links {
                gap: 10px;
                font-size: 0.8rem;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #1a365d;
            --primary-light: #2c5282;
            --primary-dark: #0f1a2e;
            --accent: #c8a45c;
            --accent-light: #d4b86a;
            --accent-dark: #a8883f;
            --bg: #f7f8fa;
            --bg-alt: #edf0f5;
            --white: #ffffff;
            --text: #2d3748;
            --text-heading: #1a202c;
            --text-light: #718096;
            --text-muted: #a0aec0;
            --border: #e2e8f0;
            --border-light: #edf2f7;
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.04);
            --shadow: 0 2px 16px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.11);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.14);
            --sidebar-width: 250px;
            --sidebar-bg: #0d1520;
            --sidebar-text: #cbd5e0;
            --sidebar-active: #c8a45c;
            --sidebar-hover: #1a2535;
            --transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            line-height: 1.7;
            background-color: var(--bg);
            color: var(--text);
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }

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

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

        ul,
        ol {
            list-style: none;
        }

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

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

        /* Sidebar */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--sidebar-bg);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            box-shadow: 2px 0 24px rgba(0, 0, 0, 0.18);
            transition: transform var(--transition);
            overflow-y: auto;
            overflow-x: hidden;
        }

        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 22px 20px 18px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .sidebar-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--accent), #e0b860);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #1a365d;
            font-weight: 800;
            flex-shrink: 0;
        }

        .sidebar-logo .logo-text {
            font-size: 1.1rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            padding: 14px 12px;
            gap: 2px;
            flex: 1;
        }

        .nav-label {
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: rgba(255, 255, 255, 0.3);
            padding: 8px 10px 6px;
            font-weight: 600;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: var(--radius);
            color: var(--sidebar-text);
            font-size: 0.93rem;
            font-weight: 500;
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .sidebar-nav a .nav-icon {
            font-size: 1.1rem;
            flex-shrink: 0;
            width: 24px;
            text-align: center;
        }

        .sidebar-nav a:hover {
            background: var(--sidebar-hover);
            color: #ffffff;
            transform: translateX(3px);
        }

        .sidebar-nav a.active {
            background: rgba(200, 164, 92, 0.15);
            color: var(--sidebar-active);
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--sidebar-active);
            border-radius: var(--radius) var(--radius) var(--radius) 4px;
        }

        .sidebar-nav a.active .nav-icon {
            color: var(--sidebar-active);
        }

        .sidebar-footer-note {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.7rem;
            color: rgba(255, 255, 255, 0.25);
            text-align: center;
            flex-shrink: 0;
            letter-spacing: 0.3px;
        }

        /* Mobile header */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: var(--sidebar-bg);
            z-index: 999;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }

        .mobile-header .mobile-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
        }

        .mobile-header .mobile-logo .logo-icon {
            width: 30px;
            height: 30px;
            border-radius: 5px;
            background: linear-gradient(135deg, var(--accent), #e0b860);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #1a365d;
            font-weight: 800;
        }

        .hamburger-btn {
            display: flex;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            z-index: 1001;
            background: transparent;
        }

        .hamburger-btn span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: #ffffff;
            border-radius: 2px;
            transition: all var(--transition);
        }

        .hamburger-btn.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger-btn.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger-btn.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition);
        }
        .sidebar-overlay.visible {
            display: block;
            opacity: 1;
        }

        /* Main content */
        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 28px;
        }

        .container-wide {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 28px;
        }

        /* Hero */
        .hero-section {
            position: relative;
            padding: 60px 0 56px;
            background-image: url('assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            color: #ffffff;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 21, 32, 0.88) 0%, rgba(26, 54, 93, 0.75) 60%, rgba(13, 21, 32, 0.82) 100%);
            z-index: 1;
        }

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

        .hero-badge {
            display: inline-block;
            background: rgba(200, 164, 92, 0.2);
            border: 1px solid rgba(200, 164, 92, 0.45);
            color: var(--accent-light);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .hero-section h1 {
            font-size: 2.5rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
            line-height: 1.25;
        }

        .hero-section .hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.82);
            max-width: 650px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .hero-stats-row {
            display: flex;
            gap: 32px;
            margin-top: 28px;
            flex-wrap: wrap;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-stat .stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-light);
            letter-spacing: 0.5px;
        }
        .hero-stat .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.65);
        }

        /* Section通用 */
        .section {
            padding: 52px 0;
        }

        .section-header {
            margin-bottom: 32px;
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .section-header h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-heading);
            position: relative;
            padding-left: 16px;
        }

        .section-header h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 26px;
            background: var(--accent);
            border-radius: 2px;
        }

        .section-header .view-all {
            font-size: 0.9rem;
            color: var(--primary-light);
            font-weight: 600;
            transition: color var(--transition);
            white-space: nowrap;
        }
        .section-header .view-all:hover {
            color: var(--accent-dark);
        }

        /* 资讯卡片列表 */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .news-card {
            display: flex;
            gap: 20px;
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            align-items: flex-start;
        }

        .news-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: var(--border);
        }

        .news-card .news-thumb {
            width: 180px;
            height: 120px;
            flex-shrink: 0;
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--bg-alt);
        }

        .news-card .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius);
            transition: transform 0.4s ease;
        }

        .news-card:hover .news-thumb img {
            transform: scale(1.06);
        }

        .news-card .news-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
            min-width: 0;
        }

        .news-card .news-meta {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-wrap: wrap;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .news-card .news-tag {
            display: inline-block;
            background: rgba(200, 164, 92, 0.12);
            color: var(--accent-dark);
            padding: 3px 10px;
            border-radius: 50px;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.4px;
            white-space: nowrap;
        }

        .news-card .news-date {
            color: var(--text-light);
            white-space: nowrap;
        }

        .news-card h3 {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--text-heading);
            line-height: 1.4;
        }

        .news-card h3 a {
            color: inherit;
            transition: color var(--transition);
        }
        .news-card h3 a:hover {
            color: var(--primary-light);
        }

        .news-card .news-excerpt {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card .read-more {
            align-self: flex-start;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary-light);
            padding: 6px 14px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .news-card .read-more:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        /* 数据卡片网格 */
        .data-cards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .data-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 22px 18px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }

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

        .data-card .data-icon {
            font-size: 2rem;
            margin-bottom: 8px;
        }
        .data-card .data-value {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
        }
        .data-card .data-label {
            font-size: 0.82rem;
            color: var(--text-light);
            margin-top: 4px;
        }

        /* 精选专题 */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .featured-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }

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

        .featured-card .featured-img {
            height: 170px;
            overflow: hidden;
            background: var(--bg-alt);
        }

        .featured-card .featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }
        .featured-card:hover .featured-img img {
            transform: scale(1.07);
        }

        .featured-card .featured-body {
            padding: 16px 18px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .featured-card .featured-body h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-heading);
        }
        .featured-card .featured-body p {
            font-size: 0.85rem;
            color: var(--text-light);
            line-height: 1.5;
        }
        .featured-card .featured-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary-light);
            align-self: flex-start;
            transition: color var(--transition);
        }
        .featured-card .featured-link:hover {
            color: var(--accent-dark);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 850px;
            margin: 0 auto;
        }

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

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

        .faq-question {
            padding: 16px 20px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-heading);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            width: 100%;
            text-align: left;
            background: transparent;
            transition: color var(--transition);
            line-height: 1.4;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.1rem;
            transition: all var(--transition);
            color: var(--text-light);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 20px;
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 20px 18px;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #1a365d 0%, #0f1a2e 100%);
            color: #ffffff;
            text-align: center;
            padding: 48px 0;
        }

        .cta-section h2 {
            color: #ffffff;
            font-size: 1.7rem;
            margin-bottom: 10px;
            font-weight: 700;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.78);
            max-width: 600px;
            margin: 0 auto 24px;
            font-size: 1rem;
            line-height: 1.6;
        }
        .cta-btn {
            display: inline-block;
            background: var(--accent);
            color: #1a365d;
            padding: 13px 32px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.4px;
            transition: all var(--transition);
            box-shadow: 0 4px 18px rgba(200, 164, 92, 0.35);
        }
        .cta-btn:hover {
            background: #d4b86a;
            box-shadow: 0 8px 28px rgba(200, 164, 92, 0.5);
            transform: translateY(-2px);
        }

        /* Footer */
        .site-footer {
            background: #0d1520;
            color: rgba(255, 255, 255, 0.7);
            padding: 30px 0;
            flex-shrink: 0;
        }
        .footer-inner {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 14px;
            text-align: center;
        }
        .footer-brand {
            font-size: 1.15rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.5px;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            justify-content: center;
        }
        .footer-links a {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition);
            font-weight: 500;
        }
        .footer-links a:hover {
            color: var(--accent-light);
        }
        .footer-copy {
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.35);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            :root {
                --sidebar-width: 220px;
            }
            .sidebar-nav a {
                font-size: 0.85rem;
                padding: 10px 12px;
                gap: 8px;
            }
            .sidebar-logo {
                padding: 18px 14px 14px;
            }
            .sidebar-logo .logo-text {
                font-size: 1rem;
            }
            .hero-section h1 {
                font-size: 2rem;
            }
            .data-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-card .news-thumb {
                width: 140px;
                height: 100px;
            }
            .container,
            .container-wide {
                padding: 0 20px;
            }
        }

        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
                width: 260px;
                z-index: 1000;
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .mobile-header {
                display: flex;
            }
            .sidebar-overlay.visible {
                display: block;
                opacity: 1;
            }
            .main-content {
                margin-left: 0;
                padding-top: 56px;
            }
            .hero-section {
                padding: 40px 0 36px;
            }
            .hero-section h1 {
                font-size: 1.6rem;
            }
            .hero-section .hero-desc {
                font-size: 0.95rem;
            }
            .hero-stats-row {
                gap: 20px;
            }
            .hero-stat .stat-number {
                font-size: 1.4rem;
            }
            .news-card {
                flex-direction: column;
                gap: 12px;
                padding: 14px;
            }
            .news-card .news-thumb {
                width: 100%;
                height: 180px;
            }
            .data-cards-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .data-card {
                padding: 16px 10px;
            }
            .data-card .data-value {
                font-size: 1.3rem;
            }
            .featured-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .section {
                padding: 36px 0;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .cta-section h2 {
                font-size: 1.35rem;
            }
            .container,
            .container-wide {
                padding: 0 16px;
            }
            .footer-inner {
                gap: 10px;
            }
            .footer-links {
                gap: 12px;
            }
        }

        @media (max-width: 520px) {
            .hero-section h1 {
                font-size: 1.35rem;
            }
            .hero-stats-row {
                gap: 12px;
                flex-direction: column;
            }
            .data-cards-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .data-card {
                padding: 14px 8px;
            }
            .data-card .data-value {
                font-size: 1.15rem;
            }
            .data-card .data-label {
                font-size: 0.72rem;
            }
            .news-card .news-thumb {
                height: 150px;
            }
            .news-card h3 {
                font-size: 0.98rem;
            }
            .featured-card .featured-img {
                height: 140px;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .faq-answer {
                font-size: 0.82rem;
            }
            .cta-btn {
                padding: 11px 24px;
                font-size: 0.9rem;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1B3A5C;
            --primary-dark: #0F2440;
            --primary-light: #2C5282;
            --accent: #C8963E;
            --accent-light: #D4A853;
            --accent-dark: #A07830;
            --bg: #FFFFFF;
            --bg-secondary: #F7F8FA;
            --bg-tertiary: #EDF0F5;
            --text: #1A202C;
            --text-strong: #0D1117;
            --text-muted: #718096;
            --text-light: #A0AEC0;
            --border: #E2E8F0;
            --border-light: #EDF2F7;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.13);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --sidebar-width: 250px;
            --sidebar-width-tablet: 200px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Consolas', 'Monaco', monospace;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

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

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

        /* ============ SIDEBAR NAVIGATION ============ */
        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--primary-dark);
            background: linear-gradient(180deg, #0F2440 0%, #1B3A5C 40%, #152D4A 100%);
            display: flex;
            flex-direction: column;
            padding: 28px 0 20px;
            z-index: 1000;
            overflow-y: auto;
            overflow-x: hidden;
            box-shadow: var(--shadow-xl);
            transition: transform var(--transition-slow);
            border-right: 1px solid rgba(255, 255, 255, 0.08);
        }

        .sidebar-logo {
            padding: 0 22px 24px;
            margin-bottom: 8px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.10);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .sidebar-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #fff;
            flex-shrink: 0;
        }

        .sidebar-logo .logo-text {
            font-size: 1.15rem;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .sidebar-nav .nav-label {
            display: block;
            padding: 8px 22px 4px;
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: rgba(255, 255, 255, 0.4);
            font-weight: 600;
            margin-top: 4px;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 22px;
            margin: 2px 10px;
            border-radius: var(--radius-md);
            color: rgba(255, 255, 255, 0.78);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .sidebar-nav a .nav-icon {
            font-size: 1.1rem;
            width: 22px;
            text-align: center;
            flex-shrink: 0;
        }

        .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #FFFFFF;
            transform: translateX(2px);
        }

        .sidebar-nav a.active,
        .sidebar-nav a[aria-current="page"] {
            background: rgba(255, 255, 255, 0.14);
            color: #FFFFFF;
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--accent);
        }

        .sidebar-nav a.active::before,
        .sidebar-nav a[aria-current="page"]::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background: var(--accent);
            border-radius: 0 3px 3px 0;
        }

        .sidebar-nav a:focus-visible {
            outline: 2px solid var(--accent-light);
            outline-offset: 2px;
        }

        /* ============ HAMBURGER MENU ============ */
        .mobile-nav-toggle {
            display: none;
            position: fixed;
            top: 12px;
            left: 12px;
            z-index: 1100;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            background: var(--primary-dark);
            color: #fff;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-fast);
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        .mobile-nav-toggle:hover {
            background: var(--primary-light);
        }

        .mobile-nav-toggle:focus-visible {
            outline: 2px solid var(--accent-light);
            outline-offset: 2px;
        }

        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 999;
            transition: opacity var(--transition-base);
        }

        .sidebar-overlay.active {
            display: block;
            opacity: 1;
        }

        /* ============ MAIN CONTENT AREA ============ */
        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            transition: margin-left var(--transition-slow);
        }

        /* ============ CONTAINER ============ */
        .container {
            width: 100%;
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 32px;
        }

        .container-narrow {
            max-width: 860px;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ============ SECTION SPACING ============ */
        .section {
            padding: 56px 0;
        }

        .section-sm {
            padding: 36px 0;
        }

        .section-lg {
            padding: 72px 0;
        }

        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 32px;
            line-height: 1.6;
        }

        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-header .section-title {
            margin-bottom: 10px;
        }

        .section-divider {
            width: 50px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
            margin: 0 auto 16px;
        }

        /* ============ HERO BANNER ============ */
        .hero-banner {
            position: relative;
            background: var(--primary-dark);
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 80px 0;
            color: #FFFFFF;
            overflow: hidden;
        }

        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 36, 64, 0.88) 0%, rgba(27, 58, 92, 0.78) 50%, rgba(15, 36, 64, 0.85) 100%);
            z-index: 1;
        }

        .hero-banner .container {
            position: relative;
            z-index: 2;
        }

        .hero-banner .hero-badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }

        .hero-banner h1 {
            font-size: 2.5rem;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
            line-height: 1.25;
        }

        .hero-banner .hero-desc {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            line-height: 1.7;
            margin-bottom: 24px;
        }

        .hero-banner .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
        }

        .hero-banner .hero-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .hero-banner .hero-meta .meta-icon {
            font-size: 1.1rem;
        }

        /* ============ BUTTONS ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 24px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            white-space: nowrap;
            cursor: pointer;
            text-align: center;
            border: 2px solid transparent;
            line-height: 1.4;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
            box-shadow: 0 2px 8px rgba(200, 150, 62, 0.3);
        }

        .btn-primary:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            box-shadow: 0 4px 16px rgba(200, 150, 62, 0.4);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 1px 4px rgba(200, 150, 62, 0.3);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.5);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-1px);
        }

        .btn-sm {
            padding: 7px 16px;
            font-size: 0.85rem;
            border-radius: var(--radius-sm);
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 1.05rem;
            border-radius: var(--radius-md);
        }

        .btn:focus-visible {
            outline: 3px solid var(--accent-light);
            outline-offset: 3px;
        }

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

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

        .card-body {
            padding: 22px 20px;
        }

        .card-image {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
            background: var(--bg-tertiary);
        }

        .card-tag {
            display: inline-block;
            background: var(--bg-tertiary);
            color: var(--primary-light);
            padding: 3px 10px;
            border-radius: 14px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 10px;
        }

        .card-tag.accent {
            background: rgba(200, 150, 62, 0.12);
            color: var(--accent-dark);
        }

        .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 6px;
            line-height: 1.4;
        }

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

        .card-meta {
            font-size: 0.8rem;
            color: var(--text-light);
            margin-top: 10px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        /* ============ GRID LAYOUTS ============ */
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        /* ============ ARTICLE LIST ============ */
        .article-list-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            align-items: flex-start;
        }

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

        .article-list-item:hover {
            background: var(--bg-secondary);
            margin: 0 -16px;
            padding-left: 16px;
            padding-right: 16px;
            border-radius: var(--radius-md);
            border-bottom-color: transparent;
        }

        .article-list-item .article-thumb {
            width: 160px;
            flex-shrink: 0;
            aspect-ratio: 16 / 10;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-tertiary);
        }

        .article-list-item .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

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

        .article-list-item .article-title {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .article-list-item .article-excerpt {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
        }

        .article-list-item .article-date {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        /* ============ TIPS CARDS ============ */
        .tip-card {
            background: var(--bg);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .tip-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--accent);
            border-radius: 4px 0 0 4px;
        }

        .tip-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: var(--border);
        }

        .tip-card .tip-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: rgba(200, 150, 62, 0.2);
            position: absolute;
            top: 10px;
            right: 18px;
            line-height: 1;
            pointer-events: none;
        }

        .tip-card .tip-icon {
            font-size: 2rem;
            margin-bottom: 12px;
            display: block;
        }

        .tip-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-strong);
        }

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

        /* ============ STAT BLOCK ============ */
        .stat-block {
            background: var(--primary-dark);
            background: linear-gradient(135deg, #0F2440 0%, #1B3A5C 100%);
            border-radius: var(--radius-xl);
            padding: 40px 36px;
            color: #fff;
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            justify-content: space-around;
            text-align: center;
            box-shadow: var(--shadow-lg);
        }

        .stat-item .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--accent-light);
            line-height: 1.1;
        }

        .stat-item .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
            letter-spacing: 0.03em;
        }

        /* ============ FAQ ============ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

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

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-strong);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            cursor: pointer;
            background: var(--bg);
            border: none;
            transition: background var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .faq-question:hover {
            background: var(--bg-secondary);
        }

        .faq-question .faq-arrow {
            flex-shrink: 0;
            transition: transform var(--transition-base);
            font-size: 1.2rem;
            color: var(--text-muted);
        }

        .faq-item.open .faq-question .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 20px;
            font-size: 0.93rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 20px 18px;
        }

        .faq-question:focus-visible {
            outline: 2px solid var(--accent-light);
            outline-offset: -2px;
            border-radius: var(--radius-md);
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            background: var(--bg-secondary);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
        }

        .cta-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-strong);
        }

        .cta-section p {
            color: var(--text-muted);
            margin-bottom: 22px;
            font-size: 1rem;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 36px 0;
            margin-top: auto;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            align-items: center;
            justify-content: space-between;
            text-align: center;
        }

        .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: 0.03em;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            justify-content: center;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
            letter-spacing: 0.02em;
        }

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

        .footer-copy {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
            width: 100%;
            text-align: center;
            margin-top: 4px;
            letter-spacing: 0.02em;
        }

        .footer-links a:focus-visible {
            outline: 2px solid var(--accent-light);
            outline-offset: 3px;
            border-radius: 3px;
        }

        /* ============ BREADCRUMB ============ */
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--text-muted);
            padding: 16px 0;
            align-items: center;
        }

        .breadcrumb a {
            color: var(--primary-light);
            font-weight: 500;
            transition: color var(--transition-fast);
        }

        .breadcrumb a:hover {
            color: var(--primary);
            text-decoration: underline;
        }

        .breadcrumb .separator {
            color: var(--text-light);
            user-select: none;
        }

        .breadcrumb .current {
            color: var(--text-strong);
            font-weight: 600;
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .sidebar-nav {
                width: var(--sidebar-width-tablet);
            }
            .main-content {
                margin-left: var(--sidebar-width-tablet);
            }
            .container,
            .container-narrow {
                padding: 0 24px;
            }
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .hero-banner h1 {
                font-size: 2.1rem;
            }
            .hero-banner {
                padding: 56px 0;
            }
            .section {
                padding: 40px 0;
            }
            .section-lg {
                padding: 52px 0;
            }
            .article-list-item .article-thumb {
                width: 130px;
            }
            .stat-block {
                gap: 20px;
                padding: 30px 24px;
            }
            .stat-item .stat-number {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            .sidebar-nav {
                transform: translateX(-100%);
                width: 280px;
                z-index: 1000;
                box-shadow: var(--shadow-xl);
            }
            .sidebar-nav.open {
                transform: translateX(0);
            }
            .sidebar-overlay {
                display: none;
            }
            .sidebar-overlay.active {
                display: block;
            }
            .mobile-nav-toggle {
                display: flex;
            }
            .main-content {
                margin-left: 0;
            }
            .container,
            .container-narrow {
                padding: 0 18px;
            }
            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .hero-banner {
                padding: 48px 0;
                text-align: center;
            }
            .hero-banner h1 {
                font-size: 1.7rem;
            }
            .hero-banner .hero-desc {
                font-size: 1rem;
                max-width: 100%;
            }
            .hero-banner .hero-meta {
                justify-content: center;
                gap: 12px;
                font-size: 0.82rem;
            }
            .section {
                padding: 32px 0;
            }
            .section-lg {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .article-list-item {
                flex-direction: column;
                gap: 12px;
            }
            .article-list-item .article-thumb {
                width: 100%;
                aspect-ratio: 16 / 9;
            }
            .article-list-item:hover {
                margin: 0 -10px;
                padding-left: 10px;
                padding-right: 10px;
            }
            .stat-block {
                flex-direction: column;
                gap: 20px;
                padding: 28px 20px;
            }
            .stat-item .stat-number {
                font-size: 1.8rem;
            }
            .cta-section {
                padding: 32px 20px;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .footer-inner {
                flex-direction: column;
                gap: 14px;
            }
            .tip-card {
                padding: 22px 18px;
            }
            .tip-card .tip-number {
                font-size: 2rem;
                top: 6px;
                right: 12px;
            }
            .card-body {
                padding: 16px 14px;
            }
            .breadcrumb {
                font-size: 0.78rem;
                padding: 10px 0;
            }
        }

        @media (max-width: 520px) {
            .hero-banner h1 {
                font-size: 1.4rem;
            }
            .hero-banner .hero-desc {
                font-size: 0.9rem;
            }
            .hero-banner .hero-badge {
                font-size: 0.75rem;
                padding: 4px 12px;
            }
            .hero-banner {
                padding: 36px 0;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .section-subtitle {
                font-size: 0.9rem;
            }
            .btn {
                padding: 9px 18px;
                font-size: 0.88rem;
            }
            .btn-lg {
                padding: 12px 22px;
                font-size: 0.95rem;
            }
            .card-title {
                font-size: 1rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .faq-answer {
                font-size: 0.85rem;
                padding: 0 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }
            .sidebar-nav {
                width: 260px;
            }
            .mobile-nav-toggle {
                width: 36px;
                height: 36px;
                top: 8px;
                left: 8px;
                font-size: 1.2rem;
            }
        }

        /* ============ FOCUS VISIBLE GLOBAL ============ */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent-light);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ============ ANIMATIONS ============ */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-on-scroll {
            animation: fadeInUp 0.6s ease forwards;
        }

/* roulang page: category2 */
:root {
            --primary: #1a3a5c;
            --primary-light: #234b74;
            --primary-dark: #0f2640;
            --accent: #c8963e;
            --accent-light: #d4a855;
            --accent-dark: #a67a2e;
            --bg: #ffffff;
            --bg-secondary: #f8f9fa;
            --bg-tertiary: #f1f3f5;
            --bg-dark: #111827;
            --text: #1a1a1a;
            --text-secondary: #4b5563;
            --text-muted: #6b7280;
            --text-light: #9ca3af;
            --text-on-dark: #e5e7eb;
            --border: #e5e7eb;
            --border-light: #f3f4f6;
            --border-medium: #d1d5db;
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --radius-2xl: 20px;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.09), 0 3px 8px rgba(0, 0, 0, 0.05);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.11), 0 4px 12px rgba(0, 0, 0, 0.06);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.14), 0 8px 20px rgba(0, 0, 0, 0.08);
            --sidebar-width: 250px;
            --sidebar-width-tablet: 200px;
            --header-mobile-height: 56px;
            --transition-fast: 0.15s ease;
            --transition: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-sans: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --max-width: 1160px;
            --content-padding: 40px;
            --content-padding-tablet: 28px;
            --content-padding-mobile: 18px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg-secondary);
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-lg);
        }

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

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

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

        ul,
        ol {
            list-style: none;
        }

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

        /* Mobile Top Bar */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-mobile-height);
            background: var(--bg);
            border-bottom: 1px solid var(--border);
            z-index: 1000;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            box-shadow: var(--shadow-xs);
        }
        .mobile-topbar .topbar-brand {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--primary);
            letter-spacing: -0.01em;
        }
        .mobile-topbar .hamburger-btn {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius);
            color: var(--text);
            font-size: 1.3rem;
            transition: background var(--transition-fast);
        }
        .mobile-topbar .hamburger-btn:hover {
            background: var(--bg-tertiary);
        }
        .mobile-topbar .hamburger-btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: var(--radius);
        }

        /* Sidebar */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg);
            border-right: 1px solid var(--border);
            z-index: 999;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
            overflow-x: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition-slow), width var(--transition);
        }
        .sidebar-header {
            padding: 28px 24px 20px;
            border-bottom: 1px solid var(--border-light);
            flex-shrink: 0;
        }
        .sidebar-logo {
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--primary);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .sidebar-nav {
            flex: 1;
            padding: 14px 12px;
            display: flex;
            flex-direction: column;
            gap: 3px;
        }
        .nav-label {
            display: block;
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--text-muted);
            padding: 8px 12px 6px;
            font-weight: 600;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: var(--radius);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .sidebar-nav a:hover {
            background: var(--bg-tertiary);
            color: var(--text);
        }
        .sidebar-nav a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: -2px;
        }
        .sidebar-nav a.active {
            background: var(--primary);
            color: #ffffff;
            font-weight: 600;
            box-shadow: var(--shadow-sm);
        }
        .sidebar-nav a.active .nav-icon {
            filter: brightness(1.2);
        }
        .nav-icon {
            font-size: 1.1rem;
            width: 24px;
            text-align: center;
            flex-shrink: 0;
        }
        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid var(--border-light);
            flex-shrink: 0;
            font-size: 0.78rem;
            color: var(--text-muted);
            text-align: center;
            line-height: 1.5;
        }

        /* Overlay */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 998;
            transition: opacity var(--transition);
        }
        .sidebar-overlay.active {
            display: block;
        }

        /* Main Content */
        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            transition: margin-left var(--transition);
        }

        /* Container */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: var(--content-padding);
            padding-right: var(--content-padding);
        }

        /* Breadcrumb */
        .breadcrumb-row {
            padding: 16px 0 4px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .separator {
            color: var(--border-medium);
            user-select: none;
        }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 500;
        }

        /* Hero Banner */
        .category-hero {
            position: relative;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 340px;
            display: flex;
            align-items: center;
            border-radius: var(--radius-xl);
            overflow: hidden;
            margin-top: 10px;
            margin-bottom: 36px;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 38, 64, 0.88) 0%, rgba(26, 58, 92, 0.75) 40%, rgba(200, 150, 62, 0.35) 100%);
            z-index: 1;
        }
        .category-hero-content {
            position: relative;
            z-index: 2;
            padding: 48px 40px;
            color: #fff;
            max-width: 700px;
        }
        .category-hero-tag {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 20px;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
            text-transform: uppercase;
        }
        .category-hero-content h1 {
            font-size: 2.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .category-hero-content p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.9);
            line-height: 1.7;
            max-width: 550px;
        }
        .category-hero-stats {
            display: flex;
            gap: 28px;
            margin-top: 24px;
            flex-wrap: wrap;
        }
        .hero-stat-item {
            text-align: center;
            background: rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 14px 20px;
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.18);
        }
        .hero-stat-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-light);
            line-height: 1;
        }
        .hero-stat-label {
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 4px;
        }

        /* Sections */
        .section {
            padding: 30px 0 50px;
        }
        .section-header {
            text-align: center;
            margin-bottom: 36px;
        }
        .section-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--accent-dark);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.01em;
            margin-bottom: 10px;
        }
        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 620px;
            margin: 0 auto;
            line-height: 1.6;
        }

        /* Cards Grid */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 20px;
        }
        .cards-grid.cols-2 {
            grid-template-columns: repeat(2, 1fr);
        }
        .cards-grid.cols-3 {
            grid-template-columns: repeat(3, 1fr);
        }
        .cards-grid.cols-4 {
            grid-template-columns: repeat(4, 1fr);
        }

        /* Card */
        .card {
            background: var(--bg);
            border-radius: var(--radius-xl);
            padding: 28px 24px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-xs);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 12px;
            height: 100%;
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--border);
        }
        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            flex-shrink: 0;
        }
        .card-icon.blue {
            background: #eef4fa;
            color: var(--primary);
        }
        .card-icon.gold {
            background: #fdf6ea;
            color: var(--accent);
        }
        .card-icon.green {
            background: #ecf8f0;
            color: #2d8a56;
        }
        .card-icon.purple {
            background: #f3edf9;
            color: #6b3fa0;
        }
        .card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text);
            margin: 0;
        }
        .card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
            flex: 1;
        }
        .card-meta {
            font-size: 0.8rem;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .card-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 12px;
            background: var(--bg-tertiary);
            color: var(--text-secondary);
        }
        .card-tag.accent {
            background: #fef3e0;
            color: var(--accent-dark);
        }

        /* Card with image */
        .card-image-top {
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
            overflow: hidden;
            margin: -28px -24px 0;
            height: 180px;
            flex-shrink: 0;
        }
        .card-image-top img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }
        .card-has-image {
            padding-top: 0;
        }

        /* Comparison Table */
        .comparison-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: var(--radius-xl);
            border: 1px solid var(--border);
            background: var(--bg);
            box-shadow: var(--shadow-sm);
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
            min-width: 700px;
            white-space: nowrap;
        }
        .comparison-table thead th {
            background: var(--primary);
            color: #fff;
            padding: 14px 16px;
            text-align: center;
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.02em;
            position: sticky;
            top: 0;
        }
        .comparison-table tbody td {
            padding: 13px 16px;
            text-align: center;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-secondary);
        }
        .comparison-table tbody tr:hover {
            background: var(--bg-tertiary);
        }
        .comparison-table tbody tr:last-child td {
            border-bottom: none;
        }
        .comparison-table .company-name {
            font-weight: 600;
            color: var(--text);
            text-align: left;
        }
        .comparison-table .highlight-cell {
            font-weight: 700;
            color: var(--accent-dark);
            background: #fefbf5;
        }
        .comparison-table .trend-up {
            color: #d93030;
        }
        .comparison-table .trend-down {
            color: #2d8a56;
        }
        .comparison-table .trend-stable {
            color: var(--text-muted);
        }

        /* Feature block */
        .feature-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            background: var(--bg);
            border-radius: var(--radius-xl);
            padding: 40px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            margin-bottom: 24px;
        }
        .feature-block.reverse {
            direction: rtl;
        }
        .feature-block.reverse .feature-text {
            direction: ltr;
        }
        .feature-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 280px;
            flex-shrink: 0;
        }
        .feature-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }
        .feature-text h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .feature-text p {
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 8px;
        }
        .feature-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-top: 14px;
        }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .feature-list li::before {
            content: '✓';
            color: var(--accent);
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 1px;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-xs);
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--border);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: background var(--transition-fast);
            cursor: pointer;
            background: transparent;
            border: none;
            font-family: inherit;
            line-height: 1.5;
        }
        .faq-question:hover {
            background: var(--bg-tertiary);
        }
        .faq-question:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: -2px;
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-tertiary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            flex-shrink: 0;
            transition: all var(--transition-fast);
            color: var(--text-muted);
        }
        .faq-item.open .faq-icon {
            background: var(--accent);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
        }
        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.75;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            margin: 20px 0 40px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 1.7rem;
            font-weight: 800;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1rem;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: 50px;
            transition: all var(--transition);
            cursor: pointer;
            letter-spacing: 0.01em;
            position: relative;
            z-index: 1;
            font-family: inherit;
            border: none;
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: var(--shadow-sm);
        }
        .btn-accent:hover {
            background: var(--accent-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-accent:focus-visible {
            outline: 3px solid rgba(255, 255, 255, 0.6);
            outline-offset: 3px;
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
        }
        .btn-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            justify-content: center;
            position: relative;
            z-index: 1;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 32px 0;
            margin-top: auto;
            border-top: 4px solid var(--accent);
        }
        .footer-inner {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 16px;
            text-align: center;
        }
        .footer-brand {
            font-weight: 800;
            font-size: 1.2rem;
            color: #fff;
            letter-spacing: -0.01em;
        }
        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .footer-links a {
            color: var(--text-on-dark);
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--accent-light);
        }
        .footer-links a:focus-visible {
            outline: 2px solid var(--accent-light);
            outline-offset: 3px;
            border-radius: 3px;
        }
        .footer-copy {
            font-size: 0.78rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* Back to top */
        .back-to-top {
            position: fixed;
            bottom: 28px;
            right: 28px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            box-shadow: var(--shadow-md);
            z-index: 900;
            transition: all var(--transition);
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            border: none;
            cursor: pointer;
        }
        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
        }
        .back-to-top:hover {
            background: var(--primary-light);
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }
        .back-to-top:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 3px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .sidebar {
                width: var(--sidebar-width-tablet);
            }
            .main-content {
                margin-left: var(--sidebar-width-tablet);
            }
            :root {
                --content-padding: var(--content-padding-tablet);
            }
            .category-hero-content h1 {
                font-size: 2rem;
            }
            .category-hero {
                min-height: 280px;
            }
            .cards-grid.cols-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .cards-grid.cols-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-block {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 28px;
            }
            .feature-block.reverse {
                direction: ltr;
            }
            .feature-image {
                height: 220px;
            }
            .category-hero-stats {
                gap: 16px;
            }
            .hero-stat-item {
                padding: 10px 16px;
            }
            .hero-stat-num {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
                width: 280px;
                box-shadow: var(--shadow-xl);
                z-index: 1001;
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .sidebar-overlay.active {
                display: block;
            }
            .mobile-topbar {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                padding-top: var(--header-mobile-height);
            }
            :root {
                --content-padding: var(--content-padding-mobile);
            }
            .category-hero {
                min-height: 260px;
                border-radius: var(--radius-lg);
            }
            .category-hero-content {
                padding: 32px 20px;
            }
            .category-hero-content h1 {
                font-size: 1.6rem;
            }
            .category-hero-content p {
                font-size: 0.9rem;
            }
            .category-hero-stats {
                gap: 10px;
            }
            .hero-stat-item {
                padding: 8px 12px;
            }
            .hero-stat-num {
                font-size: 1.2rem;
            }
            .hero-stat-label {
                font-size: 0.7rem;
            }
            .cards-grid,
            .cards-grid.cols-2,
            .cards-grid.cols-3,
            .cards-grid.cols-4 {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .comparison-table-wrap {
                border-radius: var(--radius-lg);
            }
            .feature-block {
                padding: 20px;
                border-radius: var(--radius-lg);
            }
            .feature-image {
                height: 180px;
            }
            .feature-text h3 {
                font-size: 1.2rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .faq-answer-inner {
                padding: 0 16px 16px;
                font-size: 0.85rem;
            }
            .btn {
                padding: 10px 20px;
                font-size: 0.88rem;
            }
            .breadcrumb-row {
                padding: 8px 0 0;
            }
            .back-to-top {
                bottom: 16px;
                right: 16px;
                width: 38px;
                height: 38px;
                font-size: 1rem;
            }
        }

        @media (max-width: 520px) {
            .category-hero {
                min-height: 220px;
                border-radius: var(--radius);
            }
            .category-hero-content {
                padding: 24px 16px;
            }
            .category-hero-content h1 {
                font-size: 1.35rem;
            }
            .category-hero-content p {
                font-size: 0.82rem;
            }
            .category-hero-stats {
                gap: 6px;
            }
            .hero-stat-item {
                padding: 6px 10px;
                border-radius: var(--radius);
            }
            .hero-stat-num {
                font-size: 1rem;
            }
            .hero-stat-label {
                font-size: 0.65rem;
            }
            .section {
                padding: 20px 0 32px;
            }
            .section-title {
                font-size: 1.2rem;
            }
            .card {
                padding: 20px 16px;
                border-radius: var(--radius-lg);
            }
            .card-image-top {
                margin: -20px -16px 0;
                height: 150px;
            }
            .cta-section {
                padding: 24px 16px;
                border-radius: var(--radius);
            }
            .cta-section h2 {
                font-size: 1.15rem;
            }
            .footer-links {
                gap: 12px;
            }
            .footer-links a {
                font-size: 0.8rem;
            }
            .btn-group {
                flex-direction: column;
                align-items: center;
            }
        }