/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #16213e;
            --primary-light: #1a2a4a;
            --accent: #e94560;
            --accent-hover: #d63850;
            --accent-glow: rgba(233, 69, 96, 0.3);
            --gold: #f5a623;
            --gold-light: #f7c35a;
            --bg-body: #f5f7fa;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0f1a2e;
            --bg-muted: #eef1f5;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-muted: #8888aa;
            --text-inverse: #ffffff;
            --border-light: #e8ecf1;
            --border-card: #eef0f5;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.06);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.08);
            --shadow-card: 0 4px 20px rgba(0,0,0,0.04);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.10);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans SC', sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
            --spacer-section: 100px;
            --spacer-block: 60px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent); }
        a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }
        button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; transition: var(--transition); }
        button { cursor: pointer; background: none; }
        button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); font-weight: 700; line-height: 1.25; color: var(--text-primary); }
        h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
        h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
        h3 { font-size: clamp(1.15rem, 2vw, 1.5rem); }
        h4 { font-size: 1.15rem; }
        p { margin-bottom: 0.5rem; color: var(--text-secondary); }
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container { padding: 0 16px; }
        }
        .section { padding: var(--spacer-section) 0; }
        .section + .section { padding-top: 0; }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 { margin-bottom: 12px; }
        .section-header p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto;
        }
        .section-header .subtitle {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 1px;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 8px;
            background: rgba(233, 69, 96, 0.08);
            padding: 4px 16px;
            border-radius: 20px;
        }
        .text-center { text-align: center; }
        .text-accent { color: var(--accent); }
        .text-gold { color: var(--gold); }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 32px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: 50px;
            transition: var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 30px var(--accent-glow);
        }
        .btn-secondary {
            background: transparent;
            color: var(--text-inverse);
            border-color: rgba(255,255,255,0.35);
        }
        .btn-secondary:hover {
            background: rgba(255,255,255,0.12);
            border-color: rgba(255,255,255,0.6);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--border-light);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-lg { padding: 16px 44px; font-size: 1.05rem; }
        .btn-sm { padding: 8px 20px; font-size: 0.85rem; }
        .btn i { font-size: 0.9em; }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(22, 33, 62, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(22, 33, 62, 0.98);
            box-shadow: 0 2px 30px rgba(0,0,0,0.2);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-logo {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-logo i {
            color: var(--accent);
            font-size: 1.5rem;
        }
        .site-logo span { color: var(--gold-light); }
        .site-logo:hover { color: #fff; opacity: 0.92; }

        .nav-main { display: flex; align-items: center; gap: 8px; }
        .nav-main a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255,255,255,0.75);
            border-radius: 8px;
            transition: var(--transition);
            position: relative;
        }
        .nav-main a:hover { color: #fff; background: rgba(255,255,255,0.08); }
        .nav-main a.active {
            color: #fff;
            background: rgba(233, 69, 96, 0.18);
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-cta {
            background: var(--accent) !important;
            color: #fff !important;
            padding: 8px 22px !important;
            border-radius: 50px !important;
            font-weight: 600 !important;
        }
        .nav-cta:hover { background: var(--accent-hover) !important; transform: translateY(-1px); box-shadow: 0 4px 20px var(--accent-glow); }
        .nav-cta::after { display: none !important; }

        /* Mobile toggle */
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
        .nav-toggle.active span:nth-child(2) { opacity: 0; }
        .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

        @media (max-width: 900px) {
            .nav-main {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(22, 33, 62, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 24px 20px 32px;
                gap: 4px;
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-bottom: 1px solid rgba(255,255,255,0.06);
                box-shadow: 0 20px 60px rgba(0,0,0,0.3);
            }
            .nav-main.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-main a {
                padding: 12px 20px;
                font-size: 1rem;
                width: 100%;
                justify-content: flex-start;
            }
            .nav-main a.active::after { display: none; }
            .nav-main a.active { background: rgba(233, 69, 96, 0.15); border-left: 3px solid var(--accent); }
            .nav-cta { margin-top: 8px; width: 100%; justify-content: center; }
            .nav-toggle { display: flex; }
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--bg-dark);
            overflow: hidden;
            padding-top: var(--nav-height);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.35;
            transform: scale(1.05);
            animation: heroZoom 20s ease-in-out infinite alternate;
        }
        @keyframes heroZoom {
            0% { transform: scale(1.05); }
            100% { transform: scale(1.15); }
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,26,46,0.88) 0%, rgba(22,33,62,0.70) 50%, rgba(15,26,46,0.88) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 860px;
            padding: 60px 24px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(233, 69, 96, 0.18);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(233, 69, 96, 0.25);
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: #fff;
            font-weight: 500;
            margin-bottom: 24px;
        }
        .hero-badge i { color: var(--gold); }
        .hero h1 {
            color: #fff;
            font-weight: 800;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .hero h1 .highlight { color: var(--accent); }
        .hero p {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.7);
            max-width: 600px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 40px;
            margin-top: 50px;
            padding-top: 40px;
            border-top: 1px solid rgba(255,255,255,0.08);
        }
        .hero-stat { text-align: center; }
        .hero-stat .num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--gold-light);
            display: block;
        }
        .hero-stat .label {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .hero { min-height: 92vh; }
            .hero p { font-size: 1rem; }
            .hero-stats { gap: 24px; }
            .hero-stat .num { font-size: 1.5rem; }
        }

        /* ===== Intro / About ===== */
        .about-section {
            background: var(--bg-white);
        }
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .about-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .about-image img { width: 100%; height: 400px; object-fit: cover; }
        .about-text h2 { margin-bottom: 16px; }
        .about-text p { margin-bottom: 16px; font-size: 1.02rem; }
        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 24px;
        }
        .about-feature {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            background: var(--bg-muted);
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.92rem;
        }
        .about-feature i { color: var(--accent); font-size: 1.1rem; }
        @media (max-width: 900px) {
            .about-grid { grid-template-columns: 1fr; gap: 32px; }
            .about-image img { height: 260px; }
            .about-features { grid-template-columns: 1fr; }
        }

        /* ===== Category Cards ===== */
        .category-section {
            background: var(--bg-body);
        }
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .category-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            border: 1px solid var(--border-card);
            cursor: pointer;
            display: block;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .category-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .category-card .card-body {
            padding: 24px 22px 28px;
        }
        .category-card .card-body h3 {
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .category-card .card-body h3 i { color: var(--accent); font-size: 1.2rem; }
        .category-card .card-body p {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .category-card .card-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent);
            background: rgba(233, 69, 96, 0.08);
            padding: 4px 14px;
            border-radius: 20px;
        }
        @media (max-width: 900px) {
            .category-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 560px) {
            .category-grid { grid-template-columns: 1fr; }
        }

        /* ===== CMS List / Latest Posts ===== */
        .posts-section {
            background: var(--bg-white);
        }
        .posts-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .post-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            border: 1px solid var(--border-card);
            display: block;
        }
        .post-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .post-card .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .post-card .card-body {
            padding: 20px 20px 24px;
        }
        .post-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .post-card .card-meta .cat {
            background: rgba(233, 69, 96, 0.08);
            color: var(--accent);
            padding: 2px 12px;
            border-radius: 12px;
            font-weight: 600;
        }
        .post-card .card-body h4 {
            font-size: 1.02rem;
            margin-bottom: 8px;
            line-height: 1.45;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-card .card-body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .posts-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            color: var(--text-muted);
            font-size: 1.05rem;
            background: var(--bg-muted);
            border-radius: var(--radius-md);
        }
        .posts-empty i { font-size: 2.4rem; margin-bottom: 16px; display: block; color: var(--border-light); }
        @media (max-width: 900px) {
            .posts-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 560px) {
            .posts-grid { grid-template-columns: 1fr; }
        }

        /* ===== Stats / Data ===== */
        .stats-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
        }
        .stats-grid {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }
        .stat-item .num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--gold-light);
            display: block;
            line-height: 1.1;
        }
        .stat-item .num i { font-size: 1.8rem; color: var(--accent); margin-bottom: 8px; display: block; }
        .stat-item .label {
            font-size: 0.95rem;
            color: rgba(255,255,255,0.6);
            margin-top: 8px;
            font-weight: 500;
        }
        @media (max-width: 900px) {
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
            .stat-item .num { font-size: 2rem; }
        }
        @media (max-width: 480px) {
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
        }

        /* ===== Process / Steps ===== */
        .process-section {
            background: var(--bg-body);
        }
        .process-steps {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
        }
        .process-steps::before {
            content: '';
            position: absolute;
            top: 48px;
            left: 15%;
            right: 15%;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), var(--gold), var(--accent));
            opacity: 0.25;
        }
        .step-item {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 800;
            margin: 0 auto 20px;
            border: 3px solid rgba(233, 69, 96, 0.25);
            transition: var(--transition);
        }
        .step-item:hover .step-num { background: var(--accent); border-color: var(--accent); transform: scale(1.08); }
        .step-item h4 { margin-bottom: 8px; }
        .step-item p { font-size: 0.92rem; color: var(--text-muted); }
        @media (max-width: 768px) {
            .process-steps { grid-template-columns: 1fr; gap: 28px; }
            .process-steps::before { display: none; }
            .step-num { margin-bottom: 12px; }
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-white);
        }
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-body);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-card);
            transition: var(--transition);
        }
        .faq-item.active { border-color: var(--accent); box-shadow: 0 4px 20px rgba(233, 69, 96, 0.06); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            gap: 16px;
            user-select: none;
        }
        .faq-question i { color: var(--accent); font-size: 1.1rem; transition: var(--transition); }
        .faq-item.active .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: var(--transition);
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        @media (max-width: 560px) {
            .faq-question { padding: 14px 16px; font-size: 0.92rem; }
            .faq-answer { padding: 0 16px; font-size: 0.88rem; }
            .faq-item.active .faq-answer { padding: 0 16px 16px; }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.10;
        }
        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-content h2 { color: #fff; margin-bottom: 16px; }
        .cta-content p { color: rgba(255,255,255,0.65); font-size: 1.05rem; margin-bottom: 32px; }
        .cta-actions { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255,255,255,0.6);
            padding: 60px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .footer-brand .site-logo { margin-bottom: 12px; }
        .footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.5); max-width: 300px; }
        .footer-col h5 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: rgba(255,255,255,0.5);
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            font-size: 0.83rem;
            color: rgba(255,255,255,0.35);
        }
        .footer-bottom a { color: rgba(255,255,255,0.35); }
        .footer-bottom a:hover { color: var(--accent); }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.5);
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .footer-social a:hover { background: var(--accent); color: #fff; transform: translateY(-2px); }
        @media (max-width: 900px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media (max-width: 560px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
        }

        /* ===== Back to top ===== */
        .back-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: 0 4px 20px var(--accent-glow);
            opacity: 0;
            transform: translateY(20px);
            pointer-events: none;
            transition: var(--transition);
            z-index: 999;
        }
        .back-top.show { opacity: 1; transform: translateY(0); pointer-events: all; }
        .back-top:hover { background: var(--accent-hover); transform: translateY(-4px); color: #fff; }

        /* ===== Responsive helpers ===== */
        @media (max-width: 768px) {
            .section { --spacer-section: 60px; }
            .section-header { margin-bottom: 32px; }
            .hero-badge { font-size: 0.78rem; padding: 4px 16px; }
        }
        @media (max-width: 480px) {
            :root { --nav-height: 64px; }
            .btn-lg { padding: 14px 32px; font-size: 0.95rem; }
            .hero-actions .btn { width: 100%; }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #6c5ce7;
            --primary-dark: #5a4bd1;
            --primary-light: #a29bfe;
            --secondary: #fd79a8;
            --accent: #fdcb6e;
            --bg-body: #f8f9fe;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #2d2b55;
            --bg-footer: #1a1a2e;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-muted: #8888aa;
            --text-light: #f0f0f8;
            --border-color: #e8e8f0;
            --border-light: #f0f0f8;
            --shadow-sm: 0 2px 8px rgba(108, 92, 231, 0.08);
            --shadow-md: 0 8px 30px rgba(108, 92, 231, 0.12);
            --shadow-lg: 0 20px 60px rgba(108, 92, 231, 0.15);
            --shadow-hover: 0 16px 48px rgba(108, 92, 231, 0.20);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 3px solid var(--primary-light);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            transition: var(--transition);
        }

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

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

        h1 {
            font-size: 2.6rem;
        }
        h2 {
            font-size: 2rem;
        }
        h3 {
            font-size: 1.4rem;
        }
        h4 {
            font-size: 1.15rem;
        }
        h5 {
            font-size: 1rem;
        }

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

        .section-padding {
            padding: 80px 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-title h2 {
            font-size: 2.2rem;
            margin-bottom: 12px;
            position: relative;
            display: inline-block;
        }

        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 4px;
            margin: 12px auto 0;
        }

        .section-title p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 16px auto 0;
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
            transition: var(--transition);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-sm);
        }

        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .site-logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.5px;
        }

        .site-logo i {
            color: var(--primary);
            font-size: 1.6rem;
        }

        .site-logo span {
            color: var(--primary);
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-main a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-main a i {
            margin-right: 6px;
            font-size: 0.85rem;
        }

        .nav-main a:hover {
            color: var(--primary);
            background: rgba(108, 92, 231, 0.06);
        }

        .nav-main a.active {
            color: var(--primary);
            background: rgba(108, 92, 231, 0.10);
        }

        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }

        .nav-main a.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(108, 92, 231, 0.30);
        }

        .nav-main a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(108, 92, 231, 0.40);
            color: #fff;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            background: transparent;
            border: none;
            cursor: pointer;
            border-radius: var(--radius-sm);
        }

        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 4px;
            transition: var(--transition);
        }

        .nav-toggle[aria-expanded="true"] span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Page Banner ===== */
        .page-banner {
            margin-top: var(--header-height);
            padding: 80px 0 60px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #3a2d7a 100%);
            position: relative;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.20;
            mix-blend-mode: overlay;
        }

        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
            color: var(--text-light);
        }

        .page-banner h1 {
            font-size: 3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.30);
        }

        .page-banner p {
            font-size: 1.15rem;
            max-width: 650px;
            margin: 0 auto;
            opacity: 0.90;
            color: #ddd;
        }

        .page-banner .banner-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(4px);
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.20);
            margin-bottom: 20px;
            letter-spacing: 1px;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            padding: 16px 0;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
        }

        .breadcrumb .container {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.90rem;
            color: var(--text-muted);
        }

        .breadcrumb a {
            color: var(--text-muted);
        }

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

        .breadcrumb i {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

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

        /* ===== Guide Categories ===== */
        .guide-categories {
            padding: 60px 0 40px;
        }

        .guide-categories .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
        }

        .guide-categories .cat-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            text-align: center;
            cursor: pointer;
        }

        .guide-categories .cat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }

        .guide-categories .cat-card .icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.5rem;
            color: #fff;
        }

        .guide-categories .cat-card h4 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }

        .guide-categories .cat-card p {
            font-size: 0.90rem;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }

        .guide-categories .cat-card .tag {
            display: inline-block;
            background: rgba(108, 92, 231, 0.08);
            color: var(--primary);
            padding: 2px 14px;
            border-radius: 50px;
            font-size: 0.80rem;
            font-weight: 500;
        }

        /* ===== Guide List / Article Cards ===== */
        .guide-list {
            padding: 40px 0 80px;
        }

        .guide-list .guide-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 28px;
        }

        .guide-list .guide-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .guide-list .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }

        .guide-list .guide-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
            flex-shrink: 0;
        }

        .guide-list .guide-card .card-body {
            padding: 24px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .guide-list .guide-card .card-body .card-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }

        .guide-list .guide-card .card-body .card-tags span {
            background: rgba(108, 92, 231, 0.08);
            color: var(--primary);
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 500;
        }

        .guide-list .guide-card .card-body h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .guide-list .guide-card .card-body h3 a {
            color: var(--text-primary);
        }

        .guide-list .guide-card .card-body h3 a:hover {
            color: var(--primary);
        }

        .guide-list .guide-card .card-body p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            margin-bottom: 16px;
            flex: 1;
        }

        .guide-list .guide-card .card-body .card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.82rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
            margin-top: auto;
        }

        .guide-list .guide-card .card-body .card-meta .meta-left i {
            margin-right: 4px;
        }

        .guide-list .guide-card .card-body .card-meta .read-more {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.85rem;
        }

        .guide-list .guide-card .card-body .card-meta .read-more i {
            margin-left: 4px;
            transition: var(--transition);
        }

        .guide-list .guide-card .card-body .card-meta .read-more:hover i {
            transform: translateX(4px);
        }

        /* ===== Featured Guide (Large) ===== */
        .featured-guide {
            padding: 60px 0;
            background: var(--bg-white);
        }

        .featured-guide .featured-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            background: linear-gradient(135deg, #f8f6ff, #fff);
            border-radius: var(--radius-lg);
            padding: 40px 48px;
            border: 1px solid var(--border-color);
        }

        .featured-guide .featured-img {
            border-radius: var(--radius-md);
            width: 100%;
            height: 340px;
            object-fit: cover;
            box-shadow: var(--shadow-md);
        }

        .featured-guide .featured-content .badge-featured {
            display: inline-block;
            background: linear-gradient(135deg, var(--secondary), #e84393);
            color: #fff;
            padding: 4px 18px;
            border-radius: 50px;
            font-size: 0.80rem;
            font-weight: 600;
            margin-bottom: 14px;
        }

        .featured-guide .featured-content h2 {
            font-size: 1.8rem;
            margin-bottom: 14px;
        }

        .featured-guide .featured-content p {
            color: var(--text-secondary);
            margin-bottom: 20px;
            font-size: 1rem;
        }

        .featured-guide .featured-content .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 12px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(108, 92, 231, 0.30);
            transition: var(--transition);
        }

        .featured-guide .featured-content .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 28px rgba(108, 92, 231, 0.40);
            color: #fff;
        }

        /* ===== Popular Tags ===== */
        .popular-tags {
            padding: 40px 0 20px;
        }

        .popular-tags .tags-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .popular-tags .tags-wrap a {
            display: inline-block;
            padding: 6px 20px;
            border-radius: 50px;
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            font-size: 0.88rem;
            color: var(--text-secondary);
            transition: var(--transition);
        }

        .popular-tags .tags-wrap a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(108, 92, 231, 0.25);
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 60px 0;
            background: var(--bg-white);
        }

        .faq-section .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-section .faq-item {
            background: var(--bg-body);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-section .faq-item:hover {
            border-color: var(--primary-light);
        }

        .faq-section .faq-item summary {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            list-style: none;
            color: var(--text-primary);
        }

        .faq-section .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-section .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.80rem;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .faq-section .faq-item[open] summary::after {
            transform: rotate(180deg);
        }

        .faq-section .faq-item .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #3a2d7a 100%);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.12;
            mix-blend-mode: overlay;
        }

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

        .cta-section h2 {
            font-size: 2.2rem;
            color: #fff;
            margin-bottom: 14px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.80);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 32px;
        }

        .cta-section .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: #fff;
            color: var(--primary-dark);
            padding: 14px 40px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1.05rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.20);
            transition: var(--transition);
        }

        .cta-section .cta-btn:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.30);
            color: var(--primary);
        }

        .cta-section .cta-btn i {
            transition: var(--transition);
        }

        .cta-section .cta-btn:hover i {
            transform: translateX(4px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-footer);
            color: rgba(255, 255, 255, 0.70);
            padding: 60px 0 30px;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .site-footer .site-logo {
            color: #fff;
            font-size: 1.2rem;
            margin-bottom: 12px;
        }

        .site-footer .site-logo i {
            color: var(--primary-light);
        }

        .site-footer .site-logo span {
            color: var(--primary-light);
        }

        .site-footer .footer-brand p {
            font-size: 0.92rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.60);
            max-width: 320px;
        }

        .site-footer .footer-col h5 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 600;
        }

        .site-footer .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.60);
            font-size: 0.90rem;
            padding: 5px 0;
            transition: var(--transition);
        }

        .site-footer .footer-col a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }

        .site-footer .footer-social {
            display: flex;
            gap: 12px;
        }

        .site-footer .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.70);
            font-size: 1.1rem;
            padding: 0;
            transition: var(--transition);
        }

        .site-footer .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            padding: 0;
            transform: translateY(-3px);
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }

        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }

        .site-footer .footer-bottom a:hover {
            color: var(--primary-light);
        }

        /* ===== Pagination ===== */
        .pagination-wrap {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 48px;
        }

        .pagination-wrap a,
        .pagination-wrap span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            font-size: 0.90rem;
            font-weight: 500;
            border: 1px solid var(--border-color);
            background: var(--bg-white);
            color: var(--text-secondary);
            transition: var(--transition);
        }

        .pagination-wrap a:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(108, 92, 231, 0.04);
        }

        .pagination-wrap .active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .pagination-wrap .dots {
            border: none;
            background: none;
            color: var(--text-muted);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .featured-guide .featured-wrap {
                grid-template-columns: 1fr;
                padding: 32px;
            }

            .featured-guide .featured-img {
                height: 260px;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                padding: 0 16px;
            }

            .nav-main {
                display: none;
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px 32px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-lg);
                gap: 6px;
                max-height: calc(100vh - var(--header-height));
                overflow-y: auto;
            }

            .nav-main.open {
                display: flex;
            }

            .nav-main a {
                padding: 12px 16px;
                font-size: 1rem;
                width: 100%;
                border-radius: var(--radius-sm);
            }

            .nav-main a.active::after {
                display: none;
            }

            .nav-main a.nav-cta {
                margin-top: 8px;
                text-align: center;
            }

            .nav-toggle {
                display: flex;
            }

            .page-banner {
                padding: 60px 0 48px;
                min-height: 240px;
            }

            .page-banner h1 {
                font-size: 2rem;
            }

            .page-banner p {
                font-size: 1rem;
            }

            .section-padding {
                padding: 48px 0;
            }

            .section-title h2 {
                font-size: 1.6rem;
            }

            .guide-list .guide-grid {
                grid-template-columns: 1fr;
            }

            .guide-categories .category-grid {
                grid-template-columns: 1fr 1fr;
            }

            .featured-guide .featured-wrap {
                padding: 24px;
            }

            .featured-guide .featured-content h2 {
                font-size: 1.4rem;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .cta-section h2 {
                font-size: 1.6rem;
            }

            .cta-section .cta-btn {
                padding: 12px 28px;
                font-size: 0.95rem;
            }

            .pagination-wrap a,
            .pagination-wrap span {
                width: 38px;
                height: 38px;
                font-size: 0.85rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .page-banner h1 {
                font-size: 1.6rem;
            }

            .guide-categories .category-grid {
                grid-template-columns: 1fr;
            }

            .guide-list .guide-grid {
                grid-template-columns: 1fr;
            }

            .guide-list .guide-card .card-img {
                height: 170px;
            }

            .featured-guide .featured-img {
                height: 200px;
            }

            .featured-guide .featured-content h2 {
                font-size: 1.2rem;
            }

            .popular-tags .tags-wrap a {
                font-size: 0.80rem;
                padding: 4px 14px;
            }

            .faq-section .faq-item summary {
                padding: 14px 16px;
                font-size: 0.92rem;
            }

            .faq-section .faq-item .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.88rem;
            }

            .cta-section {
                padding: 48px 0;
            }

            .cta-section h2 {
                font-size: 1.3rem;
            }

            .site-footer {
                padding: 40px 0 20px;
            }

            .pagination-wrap a,
            .pagination-wrap span {
                width: 34px;
                height: 34px;
                font-size: 0.80rem;
            }
        }

/* roulang page: category2 */
/* ===== Design Variables ===== */
:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #a5b4fc;
  --primary-bg: #eef2ff;
  --secondary: #f59e0b;
  --secondary-light: #fbbf24;
  --accent: #ec4899;
  --bg-body: #f8fafc;
  --bg-white: #ffffff;
  --bg-card: #ffffff;
  --bg-dark: #1e293b;
  --bg-dark-alt: #0f172a;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-light: #f1f5f9;
  --text-white: #ffffff;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --shadow-xl: 0 24px 60px rgba(0,0,0,0.16);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-w: 1200px;
  --header-h: 72px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--bg-body);
  -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); }
a:hover { color: var(--primary); }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }
button { cursor: pointer; background: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--text-primary); }
h1 { font-size: 2.75rem; letter-spacing: -0.02em; }
h2 { font-size: 2rem; letter-spacing: -0.01em; }
h3 { font-size: 1.375rem; }
h4 { font-size: 1.125rem; }
p { color: var(--text-secondary); }
.container { width: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
@media (max-width: 768px) { .container { padding: 0 16px; } }
section { padding: 80px 0; }
@media (max-width: 768px) { section { padding: 56px 0; } }

/* ===== Header / Navigation ===== */
.site-header {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  height: var(--header-h);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: var(--shadow-md); }
.header-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  height: 100%;
}
.site-logo {
  display: flex; align-items: center; gap: 8px;
  font-size: 1.35rem; font-weight: 800; color: var(--text-primary);
  letter-spacing: -0.02em;
}
.site-logo i { color: var(--primary); font-size: 1.2em; }
.site-logo span { color: var(--primary); }
.nav-main { display: flex; align-items: center; gap: 8px; }
.nav-main a {
  position: relative;
  padding: 8px 16px;
  font-size: 0.9rem; font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  display: flex; align-items: center; gap: 6px;
}
.nav-main a i { font-size: 0.85em; opacity: 0.7; }
.nav-main a:hover { color: var(--primary); background: var(--primary-bg); }
.nav-main a.active { color: var(--primary); background: var(--primary-bg); font-weight: 600; }
.nav-main a.active::after {
  content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%);
  width: 20px; height: 3px; background: var(--primary); border-radius: 4px;
}
.nav-main a.nav-cta {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff !important; font-weight: 600; padding: 10px 24px;
  border-radius: 50px; box-shadow: 0 4px 14px rgba(99,102,241,0.35);
}
.nav-main a.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(99,102,241,0.45); }
.nav-main a.nav-cta::after { display: none; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; cursor: pointer; background: none; border: none; }
.nav-toggle span { display: block; width: 26px; height: 2px; background: var(--text-primary); border-radius: 4px; transition: all var(--transition); }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
@media (max-width: 900px) {
  .nav-main {
    position: fixed; top: var(--header-h); left: 0; width: 100%;
    flex-direction: column; gap: 4px; padding: 20px 24px 28px;
    background: rgba(255,255,255,0.98); backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    transform: translateY(-110%); opacity: 0;
    transition: all 0.4s cubic-bezier(0.4,0,0.2,1);
    pointer-events: none;
    box-shadow: var(--shadow-lg);
  }
  .nav-main.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-main a { width: 100%; padding: 12px 16px; font-size: 1rem; border-radius: var(--radius-sm); }
  .nav-main a.active::after { display: none; }
  .nav-main a.nav-cta { margin-top: 8px; text-align: center; justify-content: center; }
  .nav-toggle { display: flex; }
}

/* ===== Page Hero / Banner ===== */
.page-hero {
  position: relative;
  padding: 140px 0 80px;
  background: linear-gradient(135deg, #1e1b4b 0%, #312e81 40%, #4338ca 100%);
  overflow: hidden;
  min-height: 340px;
  display: flex; align-items: center;
}
.page-hero::before {
  content: ''; position: absolute; inset: 0;
  background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity: 0.12; mix-blend-mode: overlay;
}
.page-hero .hero-bg-pattern {
  position: absolute; inset: 0;
  background-image: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.05) 0%, transparent 60%),
                    radial-gradient(circle at 80% 20%, rgba(165,180,252,0.08) 0%, transparent 50%);
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 2; text-align: center; }
.page-hero h1 {
  color: var(--text-white); font-size: 3rem; font-weight: 800;
  margin-bottom: 16px; letter-spacing: -0.02em;
}
.page-hero h1 i { color: var(--secondary-light); margin-right: 10px; }
.page-hero p {
  color: rgba(255,255,255,0.75); font-size: 1.15rem; max-width: 680px;
  margin: 0 auto 24px; line-height: 1.7;
}
.page-hero .hero-badges {
  display: flex; justify-content: center; gap: 12px; flex-wrap: wrap;
  margin-top: 8px;
}
.page-hero .hero-badges span {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,0.12); backdrop-filter: blur(8px);
  color: rgba(255,255,255,0.9); padding: 6px 18px; border-radius: 50px;
  font-size: 0.85rem; font-weight: 500;
  border: 1px solid rgba(255,255,255,0.08);
}
.page-hero .hero-badges span i { color: var(--secondary-light); }
@media (max-width: 768px) {
  .page-hero { padding: 120px 0 60px; min-height: 280px; }
  .page-hero h1 { font-size: 2rem; }
  .page-hero p { font-size: 1rem; }
}

/* ===== Breadcrumb ===== */
.breadcrumb-bar {
  background: var(--bg-white);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}
.breadcrumb-bar .breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--text-muted); flex-wrap: wrap; }
.breadcrumb-bar .breadcrumb a { color: var(--text-secondary); }
.breadcrumb-bar .breadcrumb a:hover { color: var(--primary); }
.breadcrumb-bar .breadcrumb span { color: var(--text-primary); font-weight: 500; }
.breadcrumb-bar .breadcrumb .sep { color: var(--border); margin: 0 4px; }

/* ===== Section Title ===== */
.section-header {
  text-align: center; margin-bottom: 48px;
}
.section-header .subtitle {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--primary-bg); color: var(--primary);
  padding: 4px 16px; border-radius: 50px;
  font-size: 0.8rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.05em; margin-bottom: 12px;
}
.section-header h2 { margin-bottom: 12px; }
.section-header p { max-width: 600px; margin: 0 auto; color: var(--text-muted); font-size: 1.05rem; }
@media (max-width: 768px) { .section-header { margin-bottom: 32px; } .section-header h2 { font-size: 1.6rem; } }

/* ===== Game Cards Grid ===== */
.game-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
@media (max-width: 1024px) { .game-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; } }
@media (max-width: 640px) { .game-grid { grid-template-columns: 1fr; gap: 20px; } }

.game-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: all var(--transition);
  display: flex; flex-direction: column;
}
.game-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
.game-card .card-img {
  position: relative; width: 100%; aspect-ratio: 16/9; overflow: hidden;
  background: var(--bg-body);
}
.game-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.game-card:hover .card-img img { transform: scale(1.05); }
.game-card .card-img .card-badge {
  position: absolute; top: 12px; left: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff; padding: 4px 14px; border-radius: 50px;
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.02em;
  box-shadow: 0 4px 12px rgba(99,102,241,0.3);
}
.game-card .card-img .card-rating {
  position: absolute; bottom: 12px; right: 12px;
  background: rgba(0,0,0,0.65); backdrop-filter: blur(8px);
  color: #fff; padding: 4px 12px; border-radius: 50px;
  font-size: 0.8rem; font-weight: 600;
  display: flex; align-items: center; gap: 4px;
}
.game-card .card-img .card-rating i { color: var(--secondary); }
.game-card .card-body { padding: 20px 22px 22px; flex: 1; display: flex; flex-direction: column; }
.game-card .card-body h3 { font-size: 1.15rem; margin-bottom: 8px; font-weight: 700; }
.game-card .card-body h3 a { color: var(--text-primary); }
.game-card .card-body h3 a:hover { color: var(--primary); }
.game-card .card-body .card-meta { display: flex; align-items: center; gap: 16px; font-size: 0.8rem; color: var(--text-muted); margin-bottom: 10px; }
.game-card .card-body .card-meta span { display: flex; align-items: center; gap: 4px; }
.game-card .card-body .card-meta i { font-size: 0.75rem; }
.game-card .card-body p { font-size: 0.92rem; color: var(--text-secondary); line-height: 1.6; margin-bottom: 16px; flex: 1; }
.game-card .card-body .card-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.game-card .card-body .card-tags span {
  background: var(--bg-body); color: var(--text-secondary);
  padding: 3px 12px; border-radius: 50px; font-size: 0.75rem; font-weight: 500;
  border: 1px solid var(--border);
}
.game-card .card-body .card-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px; background: var(--primary); color: #fff;
  border-radius: 50px; font-weight: 600; font-size: 0.85rem;
  align-self: flex-start; transition: all var(--transition);
  box-shadow: 0 4px 12px rgba(99,102,241,0.25);
}
.game-card .card-body .card-btn:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(99,102,241,0.35); color: #fff; }

/* ===== Featured Big Card ===== */
.featured-card {
  display: flex; gap: 32px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  margin-bottom: 40px;
}
.featured-card .featured-img { flex: 0 0 48%; min-height: 320px; overflow: hidden; background: var(--bg-body); }
.featured-card .featured-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.featured-card:hover .featured-img img { transform: scale(1.03); }
.featured-card .featured-body { flex: 1; padding: 36px 36px 36px 0; display: flex; flex-direction: column; justify-content: center; }
.featured-card .featured-body .featured-badge { display: inline-flex; align-items: center; gap: 6px; background: var(--secondary); color: #fff; padding: 4px 16px; border-radius: 50px; font-size: 0.75rem; font-weight: 700; margin-bottom: 12px; width: fit-content; }
.featured-card .featured-body h2 { font-size: 1.8rem; margin-bottom: 12px; }
.featured-card .featured-body p { font-size: 1rem; color: var(--text-secondary); margin-bottom: 20px; line-height: 1.7; }
.featured-card .featured-body .featured-stats { display: flex; gap: 28px; margin-bottom: 20px; }
.featured-card .featured-body .featured-stats .stat { text-align: center; }
.featured-card .featured-body .featured-stats .stat .num { font-size: 1.5rem; font-weight: 800; color: var(--primary); display: block; }
.featured-card .featured-body .featured-stats .stat .label { font-size: 0.8rem; color: var(--text-muted); }
.featured-card .featured-body .featured-btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; border-radius: 50px; font-weight: 600; font-size: 0.95rem; width: fit-content; box-shadow: 0 6px 20px rgba(99,102,241,0.3); transition: all var(--transition); }
.featured-card .featured-body .featured-btn:hover { transform: translateY(-3px); box-shadow: 0 12px 32px rgba(99,102,241,0.4); color: #fff; }
@media (max-width: 900px) {
  .featured-card { flex-direction: column; }
  .featured-card .featured-img { flex: unset; width: 100%; min-height: 220px; }
  .featured-card .featured-body { padding: 24px; }
  .featured-card .featured-body h2 { font-size: 1.4rem; }
  .featured-card .featured-body .featured-stats { gap: 16px; flex-wrap: wrap; }
}
@media (max-width: 640px) {
  .featured-card .featured-body .featured-stats .stat .num { font-size: 1.2rem; }
}

/* ===== Category / Type Tabs ===== */
.type-tabs {
  display: flex; justify-content: center; gap: 10px; flex-wrap: wrap;
  margin-bottom: 36px;
}
.type-tabs a {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 22px; border-radius: 50px;
  font-size: 0.88rem; font-weight: 500;
  color: var(--text-secondary); background: var(--bg-white);
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.type-tabs a:hover { border-color: var(--primary-light); color: var(--primary); background: var(--primary-bg); }
.type-tabs a.active { background: var(--primary); color: #fff; border-color: var(--primary); box-shadow: 0 4px 14px rgba(99,102,241,0.3); }

/* ===== Leaderboard ===== */
.leaderboard-section { background: var(--bg-white); }
.leaderboard-list { max-width: 800px; margin: 0 auto; }
.leaderboard-item {
  display: flex; align-items: center; gap: 20px;
  padding: 18px 24px; border-radius: var(--radius-md);
  background: var(--bg-body); margin-bottom: 12px;
  transition: all var(--transition);
  border: 1px solid transparent;
}
.leaderboard-item:hover { background: var(--bg-white); border-color: var(--border); box-shadow: var(--shadow-sm); transform: translateX(4px); }
.leaderboard-item .rank { font-size: 1.5rem; font-weight: 800; color: var(--primary); width: 48px; text-align: center; flex-shrink: 0; }
.leaderboard-item .rank.gold { color: #f59e0b; }
.leaderboard-item .rank.silver { color: #94a3b8; }
.leaderboard-item .rank.bronze { color: #d97706; }
.leaderboard-item .lb-info { flex: 1; }
.leaderboard-item .lb-info h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 2px; }
.leaderboard-item .lb-info p { font-size: 0.82rem; color: var(--text-muted); }
.leaderboard-item .lb-score { font-weight: 700; color: var(--text-primary); font-size: 1rem; display: flex; align-items: center; gap: 6px; }
.leaderboard-item .lb-score i { color: var(--secondary); }
.leaderboard-item .lb-tag { background: var(--primary-bg); color: var(--primary); padding: 2px 12px; border-radius: 50px; font-size: 0.75rem; font-weight: 600; }

/* ===== Features / Why Section ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
@media (max-width: 1024px) { .features-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .features-grid { grid-template-columns: 1fr; } }
.feature-item {
  background: var(--bg-card);
  padding: 28px 22px;
  border-radius: var(--radius-md);
  text-align: center;
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.feature-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--primary-light); }
.feature-item .fi-icon {
  width: 56px; height: 56px; margin: 0 auto 16px;
  background: var(--primary-bg); color: var(--primary);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; transition: all var(--transition);
}
.feature-item:hover .fi-icon { background: var(--primary); color: #fff; }
.feature-item h4 { margin-bottom: 8px; font-size: 1.05rem; }
.feature-item p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.6; }

/* ===== FAQ ===== */
.faq-section { background: var(--bg-white); }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  border: 1px solid var(--border); border-radius: var(--radius-md);
  overflow: hidden; background: var(--bg-card);
  transition: box-shadow var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow-sm); }
.faq-item .faq-q {
  padding: 18px 24px; display: flex; align-items: center; justify-content: space-between;
  font-weight: 600; font-size: 1rem; cursor: pointer;
  color: var(--text-primary); transition: background var(--transition);
  gap: 12px;
}
.faq-item .faq-q i { color: var(--primary); font-size: 1.1rem; transition: transform var(--transition); }
.faq-item .faq-q:hover { background: var(--bg-body); }
.faq-item.active .faq-q i { transform: rotate(180deg); }
.faq-item .faq-a {
  padding: 0 24px 18px; font-size: 0.92rem; color: var(--text-secondary);
  line-height: 1.7; display: none;
}
.faq-item.active .faq-a { display: block; }

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, #1e1b4b 0%, #312e81 50%, #4338ca 100%);
  position: relative; overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute; inset: 0;
  background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  opacity: 0.06; mix-blend-mode: overlay;
}
.cta-section .container { position: relative; z-index: 2; text-align: center; }
.cta-section h2 { color: var(--text-white); font-size: 2.2rem; margin-bottom: 16px; }
.cta-section p { color: rgba(255,255,255,0.7); font-size: 1.1rem; max-width: 600px; margin: 0 auto 28px; }
.cta-section .cta-btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 36px; background: var(--secondary); color: #fff;
  border-radius: 50px; font-weight: 700; font-size: 1.05rem;
  box-shadow: 0 8px 28px rgba(245,158,11,0.35);
  transition: all var(--transition);
}
.cta-section .cta-btn:hover { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(245,158,11,0.45); color: #fff; background: #d97706; }
.cta-section .cta-btn i { font-size: 0.9em; }
@media (max-width: 768px) { .cta-section h2 { font-size: 1.6rem; } }

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.7);
  padding: 60px 0 0;
}
.site-footer .container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.footer-brand .site-logo { color: var(--text-white); margin-bottom: 14px; font-size: 1.2rem; display: inline-flex; }
.footer-brand p { font-size: 0.88rem; color: rgba(255,255,255,0.5); line-height: 1.7; max-width: 320px; }
.footer-col h5 { color: var(--text-white); font-size: 0.95rem; font-weight: 700; margin-bottom: 16px; letter-spacing: 0.02em; }
.footer-col a { display: block; color: rgba(255,255,255,0.55); font-size: 0.88rem; padding: 4px 0; transition: all var(--transition); }
.footer-col a:hover { color: var(--primary-light); transform: translateX(4px); }
.footer-social { display: flex; gap: 12px; }
.footer-social a { width: 38px; height: 38px; border-radius: 50%; background: rgba(255,255,255,0.06); display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.6); font-size: 1rem; transition: all var(--transition); padding: 0; }
.footer-social a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 0; font-size: 0.82rem; color: rgba(255,255,255,0.35);
  flex-wrap: wrap; gap: 12px;
}
.footer-bottom a { color: rgba(255,255,255,0.4); }
.footer-bottom a:hover { color: var(--primary-light); }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }
@media (max-width: 640px) { .footer-grid { grid-template-columns: 1fr; gap: 28px; } .footer-bottom { flex-direction: column; text-align: center; } }

/* roulang page: article */
:root {
            --primary: #0f0f23;
            --primary-light: #1a1a3e;
            --accent: #f0a500;
            --accent-hover: #d49400;
            --accent-light: rgba(240, 165, 0, 0.12);
            --bg-body: #f5f6fa;
            --bg-card: #ffffff;
            --bg-dark: #0a0a1a;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #8a8aaa;
            --text-white: #f0f0f0;
            --border: #e2e4ec;
            --border-light: #f0f1f5;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-h: 72px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html { scroll-behavior: smooth; }

        body {
            font-family: var(--font);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        @media (max-width: 768px) {
            .container { padding: 0 16px; }
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: var(--primary);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .site-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.5px;
        }
        .site-logo i { color: var(--accent); font-size: 1.3rem; }
        .site-logo span { color: var(--accent); font-weight: 800; }
        .site-logo:hover { color: #fff; opacity: 0.9; }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-main a {
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-white);
            font-size: 0.9rem;
            font-weight: 500;
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-main a i { margin-right: 6px; font-size: 0.85rem; opacity: 0.7; }
        .nav-main a:hover { background: rgba(255,255,255,0.08); color: var(--accent); }
        .nav-main a.active {
            background: var(--accent-light);
            color: var(--accent);
        }
        .nav-main a.active i { opacity: 1; }
        .nav-main a.nav-cta {
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            padding: 8px 22px;
            border-radius: var(--radius-xl);
            margin-left: 8px;
        }
        .nav-main a.nav-cta:hover { background: var(--accent-hover); color: var(--primary); transform: translateY(-1px); }
        .nav-main a.nav-cta i { opacity: 1; }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 6px;
            border-radius: var(--radius-sm);
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: #fff;
            border-radius: 4px;
            transition: all var(--transition);
        }
        .nav-toggle:hover span { background: var(--accent); }

        @media (max-width: 900px) {
            .nav-main {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: var(--primary);
                flex-direction: column;
                padding: 20px 24px 30px;
                gap: 4px;
                border-bottom: 1px solid rgba(255,255,255,0.06);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                box-shadow: var(--shadow-lg);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
            }
            .nav-main.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-main a {
                width: 100%;
                padding: 12px 16px;
                font-size: 1rem;
            }
            .nav-main a.nav-cta {
                margin-left: 0;
                margin-top: 8px;
                text-align: center;
            }
            .nav-toggle { display: flex; }
        }

        @media (max-width: 520px) {
            .header-inner { padding: 0 12px; }
            .site-logo { font-size: 1.2rem; }
        }

        /* ===== Banner ===== */
        .page-banner {
            margin-top: var(--header-h);
            padding: 80px 0 60px;
            background: linear-gradient(135deg, var(--primary) 0%, #1a1a3e 60%, #2a1a3e 100%);
            position: relative;
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.15;
            filter: blur(2px);
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,15,35,0.88) 0%, rgba(26,26,62,0.70) 100%);
        }
        .banner-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .banner-content .banner-category {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 700;
            padding: 4px 18px;
            border-radius: var(--radius-xl);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }
        .banner-content h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }
        .banner-content .banner-meta {
            color: rgba(255,255,255,0.65);
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .banner-content .banner-meta i { margin-right: 6px; color: var(--accent); }

        @media (max-width: 768px) {
            .page-banner { padding: 60px 0 40px; min-height: 220px; }
            .banner-content h1 { font-size: 1.6rem; }
            .banner-content .banner-meta { font-size: 0.85rem; gap: 12px; }
        }
        @media (max-width: 520px) {
            .page-banner { padding: 50px 0 30px; min-height: 180px; }
            .banner-content h1 { font-size: 1.3rem; }
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrap {
            background: #fff;
            border-bottom: 1px solid var(--border-light);
            padding: 14px 0;
        }
        .breadcrumb-wrap .container {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-light);
        }
        .breadcrumb-wrap a { color: var(--text-secondary); }
        .breadcrumb-wrap a:hover { color: var(--accent); }
        .breadcrumb-wrap span { color: var(--text-light); }
        .breadcrumb-wrap .current { color: var(--text-primary); font-weight: 600; }

        /* ===== Article Main ===== */
        .article-section {
            padding: 50px 0 70px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
            align-items: start;
        }

        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 40px 44px;
            border: 1px solid var(--border-light);
        }
        .article-body .article-content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-primary);
        }
        .article-body .article-content h2,
        .article-body .article-content h3 {
            margin-top: 32px;
            margin-bottom: 16px;
            font-weight: 700;
            color: var(--primary);
        }
        .article-body .article-content h2 { font-size: 1.5rem; }
        .article-body .article-content h3 { font-size: 1.2rem; }
        .article-body .article-content p {
            margin-bottom: 18px;
        }
        .article-body .article-content ul,
        .article-body .article-content ol {
            margin-bottom: 18px;
            padding-left: 24px;
        }
        .article-body .article-content ul li {
            list-style: disc;
            margin-bottom: 6px;
        }
        .article-body .article-content ol li {
            list-style: decimal;
            margin-bottom: 6px;
        }
        .article-body .article-content img {
            margin: 24px 0;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-sm);
        }
        .article-body .article-content blockquote {
            border-left: 4px solid var(--accent);
            padding: 16px 24px;
            margin: 24px 0;
            background: var(--accent-light);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body .article-content a {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-not-found {
            text-align: center;
            padding: 60px 20px;
        }
        .article-not-found i {
            font-size: 4rem;
            color: var(--text-light);
            margin-bottom: 20px;
        }
        .article-not-found h2 {
            font-size: 1.6rem;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .article-not-found p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }
        .article-not-found .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--primary);
            padding: 12px 32px;
            border-radius: var(--radius-xl);
            font-weight: 700;
            transition: all var(--transition);
        }
        .article-not-found .btn-back:hover { background: var(--accent-hover); color: var(--primary); transform: translateY(-2px); }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            padding: 28px 24px;
        }
        .sidebar-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h4 i { color: var(--accent); font-size: 1rem; }

        .sidebar-cat-list a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-secondary);
            font-size: 0.92rem;
            transition: all var(--transition);
        }
        .sidebar-cat-list a:last-child { border-bottom: none; }
        .sidebar-cat-list a:hover { color: var(--accent); padding-left: 6px; }
        .sidebar-cat-list a span {
            background: var(--accent-light);
            color: var(--accent);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: var(--radius-xl);
        }

        .sidebar-post-list .s-post-item {
            display: flex;
            gap: 14px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
            align-items: flex-start;
        }
        .sidebar-post-list .s-post-item:last-child { border-bottom: none; padding-bottom: 0; }
        .sidebar-post-list .s-post-item img {
            width: 72px;
            height: 54px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--border-light);
        }
        .sidebar-post-list .s-post-item .s-post-info a {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            display: block;
            margin-bottom: 4px;
            transition: color var(--transition);
        }
        .sidebar-post-list .s-post-item .s-post-info a:hover { color: var(--accent); }
        .sidebar-post-list .s-post-item .s-post-info .s-post-date {
            font-size: 0.75rem;
            color: var(--text-light);
        }

        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-tags a {
            display: inline-block;
            padding: 5px 14px;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 0.8rem;
            font-weight: 600;
            border-radius: var(--radius-xl);
            transition: all var(--transition);
        }
        .sidebar-tags a:hover { background: var(--accent); color: var(--primary); transform: translateY(-1px); }

        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary), #1a1a3e);
            color: #fff;
            text-align: center;
            padding: 32px 20px;
            border: none;
        }
        .sidebar-cta h4 { color: #fff; justify-content: center; }
        .sidebar-cta p { font-size: 0.9rem; color: rgba(255,255,255,0.75); margin-bottom: 20px; }
        .sidebar-cta a {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            padding: 10px 28px;
            border-radius: var(--radius-xl);
            font-weight: 700;
            transition: all var(--transition);
        }
        .sidebar-cta a:hover { background: var(--accent-hover); color: var(--primary); transform: translateY(-2px); }

        /* ===== Related Posts ===== */
        .related-section {
            padding: 0 0 60px;
        }
        .related-section h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .related-section h2 i { color: var(--accent); }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card .related-body {
            padding: 18px 20px 22px;
        }
        .related-card .related-body .related-cat {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.3px;
            margin-bottom: 6px;
        }
        .related-card .related-body h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
            margin-bottom: 8px;
        }
        .related-card .related-body h3 a { color: var(--text-primary); }
        .related-card .related-body h3 a:hover { color: var(--accent); }
        .related-card .related-body .related-date {
            font-size: 0.78rem;
            color: var(--text-light);
        }

        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr 280px; gap: 32px; }
            .article-body { padding: 30px 28px; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .article-layout { grid-template-columns: 1fr; gap: 32px; }
            .article-body { padding: 24px 20px; }
            .related-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
        }
        @media (max-width: 520px) {
            .article-body { padding: 18px 14px; }
            .related-grid { grid-template-columns: 1fr; }
            .sidebar-card { padding: 20px 16px; }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.8);
            padding: 60px 0 0;
            border-top: 1px solid rgba(255,255,255,0.05);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .footer-brand .site-logo { font-size: 1.2rem; margin-bottom: 12px; display: inline-flex; }
        .footer-brand p { font-size: 0.88rem; line-height: 1.7; color: rgba(255,255,255,0.6); max-width: 320px; margin-top: 12px; }
        .footer-col h5 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer-col a {
            display: block;
            color: rgba(255,255,255,0.55);
            font-size: 0.88rem;
            padding: 5px 0;
            transition: all var(--transition);
        }
        .footer-col a:hover { color: var(--accent); padding-left: 4px; }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            color: rgba(255,255,255,0.6);
            font-size: 1rem;
            transition: all var(--transition);
            padding: 0;
        }
        .footer-social a:hover { background: var(--accent); color: var(--primary); padding: 0; }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.4);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--accent); }

        @media (max-width: 900px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .footer-brand { grid-column: 1 / -1; }
        }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mt-20 { margin-top: 20px; }
        .mb-20 { margin-bottom: 20px; }
        .gap-8 { gap: 8px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }

/* roulang page: category3 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e94e2d;
            --primary-dark: #c93a1e;
            --primary-light: #f06a4a;
            --secondary: #f5a623;
            --secondary-light: #f7c35a;
            --accent: #2d3748;
            --bg-body: #f8f6f3;
            --bg-white: #ffffff;
            --bg-dark: #1a202c;
            --bg-card: #ffffff;
            --text-dark: #1a202c;
            --text-body: #2d3748;
            --text-muted: #718096;
            --text-light: #a0aec0;
            --border: #e2e8f0;
            --border-light: #edf2f7;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.08);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.10);
            --shadow-hover: 0 20px 56px rgba(233,78,45,0.12);
            --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --header-h: 72px;
            --spacing-section: 100px;
            --spacing-section-mobile: 60px;
        }

        /* ===== 基础 Reset ===== */
        *, *::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-body);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-h);
        }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        a:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; border-radius: 4px; }
        button, input, textarea, select { font-family: inherit; font-size: 1rem; transition: var(--transition); }
        button:focus-visible, input:focus-visible, textarea:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; color: var(--text-dark); font-weight: 700; }
        h1 { font-size: 2.8rem; letter-spacing: -0.02em; }
        h2 { font-size: 2.2rem; letter-spacing: -0.01em; }
        h3 { font-size: 1.4rem; }
        h4 { font-size: 1.15rem; }
        p { margin-bottom: 1rem; }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / 导航 ===== */
        .site-header {
            position: fixed; top: 0; left: 0; width: 100%; height: var(--header-h);
            background: rgba(255,255,255,0.94);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            z-index: 1000;
            transition: var(--transition);
        }
        .site-header.scrolled { box-shadow: var(--shadow-sm); }
        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .site-logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-dark);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.3px;
        }
        .site-logo i { color: var(--primary); font-size: 1.3rem; }
        .site-logo span { color: var(--primary); font-weight: 700; }
        .site-logo:hover { color: var(--text-dark); opacity: 0.9; }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-main a {
            padding: 8px 18px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-main a i { font-size: 0.85rem; opacity: 0.7; }
        .nav-main a:hover { color: var(--primary); background: rgba(233,78,45,0.06); }
        .nav-main a.active {
            color: var(--primary);
            background: rgba(233,78,45,0.08);
            font-weight: 600;
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px; left: 50%;
            transform: translateX(-50%);
            width: 20px; height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .nav-main a.nav-cta {
            background: var(--primary);
            color: #fff;
            padding: 8px 24px;
            border-radius: var(--radius-md);
            font-weight: 600;
            margin-left: 8px;
        }
        .nav-main a.nav-cta:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: var(--shadow-sm); }
        .nav-main a.nav-cta i { opacity: 1; color: #fff; }

        /* 移动端导航按钮 */
        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 44px; height: 44px;
            background: transparent;
            border: none;
            cursor: pointer;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
        }
        .nav-toggle span {
            display: block;
            width: 22px; height: 2.5px;
            background: var(--text-dark);
            border-radius: 4px;
            transition: var(--transition);
        }
        .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
        .nav-toggle.active span:nth-child(2) { opacity: 0; }
        .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }
        .nav-toggle:hover { background: rgba(0,0,0,0.04); }

        /* ===== 移动端菜单 ===== */
        .nav-mobile-overlay {
            display: none;
            position: fixed;
            top: var(--header-h); left: 0; width: 100%; height: calc(100vh - var(--header-h));
            background: rgba(0,0,0,0.35);
            backdrop-filter: blur(6px);
            z-index: 999;
            opacity: 0;
            transition: opacity 0.35s ease;
        }
        .nav-mobile-overlay.open { opacity: 1; display: block; }
        .nav-mobile-panel {
            position: fixed;
            top: var(--header-h); left: 0; width: 100%;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            padding: 20px 24px 28px;
            box-shadow: var(--shadow-lg);
            z-index: 1000;
            transform: translateY(-105%);
            transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
            max-height: calc(100vh - var(--header-h) - 20px);
            overflow-y: auto;
        }
        .nav-mobile-panel.open { transform: translateY(0); }
        .nav-mobile-panel a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 14px 16px;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            border-bottom: 1px solid var(--border-light);
        }
        .nav-mobile-panel a:last-child { border-bottom: none; }
        .nav-mobile-panel a:hover { background: rgba(233,78,45,0.06); color: var(--primary); }
        .nav-mobile-panel a.active { color: var(--primary); font-weight: 600; }
        .nav-mobile-panel a.nav-cta {
            background: var(--primary);
            color: #fff;
            margin-top: 12px;
            border-radius: var(--radius-md);
            justify-content: center;
        }
        .nav-mobile-panel a.nav-cta:hover { background: var(--primary-dark); }

        /* ===== 板块通用 ===== */
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-header h2 {
            margin-bottom: 12px;
            position: relative;
            display: inline-block;
        }
        .section-header h2::after {
            content: '';
            display: block;
            width: 48px; height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin: 14px auto 0;
        }
        .section-header p {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto;
        }
        .section-subtitle {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 8px;
        }

        /* ===== Hero / Banner ===== */
        .page-banner {
            position: relative;
            padding: 80px 0 80px;
            background: linear-gradient(135deg, #1a202c 0%, #2d3748 60%, #1a202c 100%);
            overflow: hidden;
            min-height: 340px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 40%, rgba(233,78,45,0.15) 0%, transparent 70%);
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner h1 {
            color: #fff;
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }
        .page-banner p {
            color: rgba(255,255,255,0.75);
            font-size: 1.15rem;
            max-width: 640px;
            margin: 0 auto 24px;
        }
        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(233,78,45,0.2);
            border: 1px solid rgba(233,78,45,0.3);
            color: #f06a4a;
            padding: 6px 20px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
        }
        .banner-meta {
            display: flex;
            justify-content: center;
            gap: 32px;
            flex-wrap: wrap;
            color: rgba(255,255,255,0.65);
            font-size: 0.95rem;
            margin-top: 8px;
        }
        .banner-meta i { color: var(--secondary); margin-right: 6px; }

        /* ===== 卡片通用 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
        }
        .card-body { padding: 24px; }
        .card-body h3 { margin-bottom: 8px; font-size: 1.2rem; }
        .card-body p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 16px; }
        .card-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
        .tag {
            display: inline-block;
            padding: 4px 14px;
            font-size: 0.78rem;
            font-weight: 600;
            border-radius: 40px;
            background: rgba(233,78,45,0.08);
            color: var(--primary);
            transition: var(--transition);
        }
        .tag:hover { background: var(--primary); color: #fff; }
        .tag-alt { background: rgba(245,166,35,0.12); color: #b87a10; }
        .tag-alt:hover { background: var(--secondary); color: #fff; }

        /* ===== 赛事卡片网格 ===== */
        .events-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .event-card .card-body { padding: 20px 24px 24px; }
        .event-card .event-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .event-card .event-meta i { color: var(--primary); width: 16px; margin-right: 4px; }
        .event-card .event-status {
            display: inline-block;
            padding: 3px 14px;
            border-radius: 40px;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .status-live { background: #dcfce7; color: #15803d; }
        .status-upcoming { background: #fef9c3; color: #a16207; }
        .status-ended { background: #f1f5f9; color: #64748b; }
        .event-card .card-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 24px;
            border-top: 1px solid var(--border-light);
            background: rgba(0,0,0,0.02);
        }
        .event-card .card-footer .btn-sm {
            padding: 6px 18px;
            font-size: 0.82rem;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-md);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            background: var(--primary);
            color: #fff;
            text-align: center;
            justify-content: center;
        }
        .btn:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); color: #fff; }
        .btn:active { transform: translateY(0); }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
        .btn-secondary {
            background: var(--secondary);
            color: #1a202c;
        }
        .btn-secondary:hover { background: var(--secondary-light); color: #1a202c; }
        .btn-sm { padding: 8px 20px; font-size: 0.85rem; border-radius: var(--radius-sm); }
        .btn-lg { padding: 16px 44px; font-size: 1.05rem; border-radius: var(--radius-md); }

        /* ===== 活动列表 ===== */
        .activity-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .activity-item {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            padding: 20px 24px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            align-items: flex-start;
        }
        .activity-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }
        .activity-icon {
            flex-shrink: 0;
            width: 52px; height: 52px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #fff;
            background: var(--primary);
        }
        .activity-icon.alt { background: var(--secondary); }
        .activity-icon.purple { background: #7c3aed; }
        .activity-content h4 { font-size: 1.05rem; margin-bottom: 4px; }
        .activity-content p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 0; }
        .activity-content .activity-time {
            font-size: 0.82rem;
            color: var(--text-light);
            margin-top: 6px;
            display: block;
        }

        /* ===== 排行榜 ===== */
        .rank-section {
            background: var(--bg-dark);
            color: #fff;
        }
        .rank-section .section-header h2 { color: #fff; }
        .rank-section .section-header h2::after { background: var(--secondary); }
        .rank-section .section-header p { color: rgba(255,255,255,0.6); }
        .rank-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .rank-card {
            background: rgba(255,255,255,0.06);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            text-align: center;
            border: 1px solid rgba(255,255,255,0.08);
            transition: var(--transition);
        }
        .rank-card:hover { background: rgba(255,255,255,0.10); transform: translateY(-4px); }
        .rank-number {
            font-size: 2.6rem;
            font-weight: 900;
            color: var(--secondary);
            line-height: 1;
            margin-bottom: 8px;
        }
        .rank-card .rank-avatar {
            width: 64px; height: 64px;
            border-radius: 50%;
            object-fit: cover;
            margin: 0 auto 12px;
            border: 3px solid rgba(245,166,35,0.3);
        }
        .rank-card h4 { color: #fff; font-size: 1.1rem; margin-bottom: 4px; }
        .rank-card p { color: rgba(255,255,255,0.5); font-size: 0.85rem; margin-bottom: 0; }
        .rank-card .rank-score {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--secondary);
            margin-top: 10px;
        }

        /* ===== 赛程表 ===== */
        .schedule-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .schedule-item {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--bg-card);
            padding: 18px 24px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .schedule-item:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); }
        .schedule-date {
            flex-shrink: 0;
            text-align: center;
            min-width: 60px;
        }
        .schedule-date .day { font-size: 1.6rem; font-weight: 800; color: var(--primary); line-height: 1; }
        .schedule-date .month { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }
        .schedule-info { flex: 1; }
        .schedule-info h4 { font-size: 1.05rem; margin-bottom: 2px; }
        .schedule-info p { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 0; }
        .schedule-status {
            flex-shrink: 0;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 40px;
        }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--border); }
        .faq-question {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: var(--transition);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover { color: var(--primary); }
        .faq-question i { transition: transform 0.3s ease; color: var(--primary); font-size: 0.9rem; }
        .faq-item.active .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { color: #fff; font-size: 2.4rem; margin-bottom: 12px; }
        .cta-section p { color: rgba(255,255,255,0.85); font-size: 1.1rem; max-width: 560px; margin: 0 auto 28px; }
        .cta-section .btn {
            background: #fff;
            color: var(--primary);
            font-size: 1.05rem;
            padding: 16px 44px;
        }
        .cta-section .btn:hover { background: var(--secondary); color: #1a202c; transform: translateY(-3px); box-shadow: 0 16px 40px rgba(0,0,0,0.2); }

        /* ===== 合作伙伴 / 媒体 ===== */
        .media-grid {
            display: flex;
            justify-content: center;
            align-items: center;
            flex-wrap: wrap;
            gap: 40px 60px;
            opacity: 0.55;
        }
        .media-grid span {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-muted);
            letter-spacing: 1px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand .site-logo { color: #fff; font-size: 1.2rem; margin-bottom: 12px; display: inline-flex; }
        .footer-brand .site-logo span { color: var(--primary); }
        .footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.5); max-width: 320px; margin-top: 12px; line-height: 1.7; }
        .footer-col h5 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-col a {
            display: block;
            padding: 5px 0;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.55);
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--primary); padding-left: 4px; }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px; height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            color: rgba(255,255,255,0.6);
            font-size: 1.1rem;
            padding: 0;
            transition: var(--transition);
        }
        .footer-social a:hover { background: var(--primary); color: #fff; padding: 0; }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding: 24px 0;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.35);
        }
        .footer-bottom a { color: rgba(255,255,255,0.45); }
        .footer-bottom a:hover { color: var(--primary); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .events-grid { grid-template-columns: repeat(2, 1fr); }
            .rank-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
            .activity-list { grid-template-columns: 1fr; }
        }
        @media (max-width: 768px) {
            :root { --header-h: 64px; --spacing-section: 60px; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.6rem; }
            .nav-main { display: none; }
            .nav-toggle { display: flex; }
            .nav-mobile-overlay.open { display: block; }
            .page-banner { padding: 60px 0 56px; min-height: 260px; }
            .page-banner h1 { font-size: 2rem; }
            .page-banner p { font-size: 1rem; }
            .banner-meta { gap: 16px; font-size: 0.85rem; }
            .events-grid { grid-template-columns: 1fr; gap: 20px; }
            .rank-grid { grid-template-columns: 1fr; gap: 16px; }
            .activity-list { grid-template-columns: 1fr; }
            .activity-item { flex-direction: column; align-items: flex-start; gap: 12px; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .section-header { margin-bottom: 36px; }
            .schedule-item { flex-wrap: wrap; gap: 12px; }
            .schedule-date { min-width: 50px; }
            .schedule-date .day { font-size: 1.2rem; }
            .cta-section { padding: 56px 0; }
            .cta-section h2 { font-size: 1.6rem; }
            .media-grid { gap: 24px 32px; }
            .nav-mobile-panel a { padding: 12px 14px; font-size: 0.95rem; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            h1 { font-size: 1.6rem; }
            h2 { font-size: 1.3rem; }
            .page-banner { padding: 44px 0 40px; min-height: 200px; }
            .page-banner h1 { font-size: 1.5rem; }
            .banner-badge { font-size: 0.75rem; padding: 4px 14px; }
            .banner-meta { gap: 10px; font-size: 0.78rem; }
            .card-body { padding: 16px; }
            .event-card .card-body { padding: 16px; }
            .event-card .card-footer { padding: 12px 16px; flex-wrap: wrap; gap: 8px; }
            .btn { padding: 10px 24px; font-size: 0.85rem; }
            .btn-lg { padding: 14px 32px; font-size: 0.95rem; }
            .faq-question { padding: 16px 18px; font-size: 0.95rem; }
            .faq-item.active .faq-answer { padding: 0 18px 16px; }
            .schedule-item { padding: 14px 16px; }
            .rank-card { padding: 20px 16px; }
            .rank-number { font-size: 2rem; }
            .media-grid { gap: 16px 24px; }
            .media-grid span { font-size: 0.9rem; }
            .footer-grid { gap: 24px; }
            .footer-col a { font-size: 0.85rem; }
        }

        /* ===== 辅助类 ===== */
        .text-center { text-align: center; }
        .mt-16 { margin-top: 16px; }
        .mt-24 { margin-top: 24px; }
        .mt-32 { margin-top: 32px; }
        .mb-16 { margin-bottom: 16px; }
        .gap-8 { gap: 8px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }