/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a1a2e;
            --primary-light: #16213e;
            --primary-mid: #0f3460;
            --accent: #e94560;
            --accent-light: #ff6b6b;
            --accent-dark: #c7304a;
            --bg: #f4f6f8;
            --bg-card: #ffffff;
            --bg-dark: #0d0d1a;
            --text: #1a1a2e;
            --text-light: #5a5a7a;
            --text-lighter: #9090aa;
            --border: #e8e8f0;
            --border-light: #f0f0f5;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.15);
            --shadow-nav: 0 2px 16px rgba(0,0,0,0.06);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--primary-mid); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button, input, textarea, select { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; color: var(--primary); font-weight: 700; }
        h1 { font-size: 2.8rem; }
        h2 { font-size: 2.2rem; margin-bottom: 1.2rem; }
        h3 { font-size: 1.5rem; margin-bottom: 0.8rem; }
        h4 { font-size: 1.2rem; margin-bottom: 0.5rem; }
        p { margin-bottom: 1rem; color: var(--text-light); }
        .container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
        .section { padding: 80px 0; }
        .section-title { text-align: center; margin-bottom: 48px; }
        .section-title h2 { position: relative; display: inline-block; }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
            margin: 12px auto 0;
        }
        .section-title p { font-size: 1.1rem; color: var(--text-lighter); max-width: 600px; margin: 12px auto 0; }

        /* ===== Header & Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            z-index: 1000;
            box-shadow: var(--shadow-nav);
            transition: background var(--transition);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .logo i { color: var(--accent); font-size: 1.8rem; }
        .logo span { background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .logo:hover { color: var(--primary); }
        .nav { display: flex; align-items: center; gap: 8px; }
        .nav a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-light);
            transition: all var(--transition);
            position: relative;
        }
        .nav a:hover { color: var(--accent); background: rgba(233,69,96,0.06); }
        .nav a.active { color: var(--accent); background: rgba(233,69,96,0.1); font-weight: 600; }
        .nav 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: 10px 24px !important;
            border-radius: var(--radius-sm) !important;
            font-weight: 600 !important;
            box-shadow: 0 4px 12px rgba(233,69,96,0.3);
        }
        .nav-cta:hover { background: var(--accent-dark) !important; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(233,69,96,0.4); }
        .nav-cta::after { display: none !important; }
        .hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; background: none; border: none; }
        .hamburger span { display: block; width: 26px; height: 2.5px; background: var(--primary); border-radius: 2px; transition: all var(--transition); }
        .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
        .hamburger.active span:nth-child(2) { opacity: 0; }
        .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

        /* ===== Hero ===== */
        .hero {
            padding: 140px 0 100px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 50%, var(--primary-mid) 100%);
            position: relative;
            overflow: hidden;
            min-height: 80vh;
            display: flex;
            align-items: center;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.25;
            mix-blend-mode: overlay;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 120px;
            background: var(--bg);
            clip-path: ellipse(70% 100% at 50% 100%);
        }
        .hero .container { position: relative; z-index: 2; text-align: center; }
        .hero h1 { font-size: 3.2rem; color: #fff; margin-bottom: 16px; font-weight: 800; letter-spacing: -1px; }
        .hero h1 span { color: var(--accent); }
        .hero p { font-size: 1.2rem; color: rgba(255,255,255,0.75); max-width: 640px; margin: 0 auto 32px; line-height: 1.8; }
        .hero-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
        .hero-buttons .btn-primary {
            padding: 16px 40px;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-size: 1.05rem;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
            box-shadow: 0 8px 32px rgba(233,69,96,0.35);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .hero-buttons .btn-primary:hover { background: var(--accent-dark); transform: translateY(-3px); box-shadow: 0 12px 40px rgba(233,69,96,0.5); }
        .hero-buttons .btn-secondary {
            padding: 16px 40px;
            background: rgba(255,255,255,0.12);
            color: #fff;
            border: 2px solid rgba(255,255,255,0.25);
            border-radius: var(--radius-sm);
            font-size: 1.05rem;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            backdrop-filter: blur(4px);
        }
        .hero-buttons .btn-secondary:hover { background: rgba(255,255,255,0.2); border-color: rgba(255,255,255,0.5); transform: translateY(-3px); }
        .hero-stats { display: flex; justify-content: center; gap: 48px; margin-top: 48px; flex-wrap: wrap; }
        .hero-stat { text-align: center; }
        .hero-stat .num { font-size: 2.4rem; font-weight: 800; color: #fff; }
        .hero-stat .label { font-size: 0.9rem; color: rgba(255,255,255,0.6); margin-top: 4px; }

        /* ===== 平台优势 ===== */
        .features-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 30px; }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 36px 28px;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
            text-align: center;
        }
        .feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: var(--border); }
        .feature-card .icon {
            width: 64px;
            height: 64px;
            background: linear-gradient(135deg, rgba(233,69,96,0.12), rgba(233,69,96,0.05));
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.6rem;
            color: var(--accent);
        }
        .feature-card h3 { font-size: 1.2rem; margin-bottom: 10px; }
        .feature-card p { font-size: 0.95rem; color: var(--text-lighter); margin-bottom: 0; }

        /* ===== 分类入口 ===== */
        .category-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
        .category-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--bg-card);
            box-shadow: var(--shadow);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
            cursor: pointer;
        }
        .category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
        .category-card .img-wrap {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .category-card .img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
        .category-card:hover .img-wrap img { transform: scale(1.08); }
        .category-card .img-wrap::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 60%;
            background: linear-gradient(transparent, rgba(0,0,0,0.3));
        }
        .category-card .info { padding: 20px 20px 24px; }
        .category-card .info h4 { font-size: 1.1rem; margin-bottom: 6px; }
        .category-card .info p { font-size: 0.9rem; color: var(--text-lighter); margin-bottom: 0; }
        .category-card .badge {
            display: inline-block;
            padding: 4px 14px;
            background: var(--accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 20px;
            margin-top: 10px;
        }

        /* ===== 热门推荐 ===== */
        .hot-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 28px; }
        .hot-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .hot-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
        .hot-card .img-wrap { height: 200px; overflow: hidden; }
        .hot-card .img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
        .hot-card:hover .img-wrap img { transform: scale(1.08); }
        .hot-card .body { padding: 22px 24px 26px; }
        .hot-card .body .tag {
            display: inline-block;
            padding: 3px 12px;
            background: rgba(233,69,96,0.1);
            color: var(--accent);
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 20px;
            margin-bottom: 10px;
        }
        .hot-card .body h4 { font-size: 1.1rem; margin-bottom: 8px; }
        .hot-card .body p { font-size: 0.9rem; color: var(--text-lighter); margin-bottom: 12px; }
        .hot-card .body .meta { display: flex; justify-content: space-between; font-size: 0.85rem; color: var(--text-lighter); }

        /* ===== 最新资讯 (CMS) ===== */
        .news-list { display: grid; gap: 16px; }
        .news-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 20px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .news-item:hover { transform: translateX(4px); box-shadow: var(--shadow-hover); border-color: var(--border); }
        .news-item .left { display: flex; align-items: center; gap: 16px; flex: 1; min-width: 0; }
        .news-item .left .dot {
            width: 8px; height: 8px;
            background: var(--accent);
            border-radius: 50%;
            flex-shrink: 0;
        }
        .news-item .left .title { font-weight: 500; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .news-item .left .title:hover { color: var(--accent); }
        .news-item .right { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
        .news-item .right .cate {
            font-size: 0.75rem;
            padding: 3px 12px;
            background: rgba(15,52,96,0.08);
            color: var(--primary-mid);
            border-radius: 20px;
            font-weight: 500;
        }
        .news-item .right .time { font-size: 0.85rem; color: var(--text-lighter); }
        .news-empty { text-align: center; padding: 40px; color: var(--text-lighter); background: var(--bg-card); border-radius: var(--radius); box-shadow: var(--shadow); }

        /* ===== 使用流程 ===== */
        .steps-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
        .step-card { text-align: center; position: relative; }
        .step-card .step-num {
            width: 56px; height: 56px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: #fff;
            font-size: 1.4rem;
            font-weight: 800;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 8px 24px rgba(233,69,96,0.25);
        }
        .step-card h4 { font-size: 1.1rem; margin-bottom: 8px; }
        .step-card p { font-size: 0.9rem; color: var(--text-lighter); margin-bottom: 0; }
        .step-card::after {
            content: '→';
            position: absolute;
            top: 20px;
            right: -20px;
            font-size: 1.5rem;
            color: var(--text-lighter);
            opacity: 0.4;
        }
        .step-card:last-child::after { display: none; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 800px; margin: 0 auto; display: grid; gap: 12px; }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover { border-color: var(--border); }
        .faq-item .question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 28px;
            cursor: pointer;
            font-weight: 600;
            color: var(--text);
            transition: background var(--transition);
            user-select: none;
        }
        .faq-item .question:hover { background: rgba(233,69,96,0.03); }
        .faq-item .question i { color: var(--accent); transition: transform var(--transition); font-size: 0.9rem; }
        .faq-item.active .question i { transform: rotate(180deg); }
        .faq-item .answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 28px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.8;
        }
        .faq-item.active .answer { max-height: 300px; padding: 0 28px 24px; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 50%, var(--primary-mid) 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-2.png') center/cover no-repeat;
            opacity: 0.1;
            mix-blend-mode: overlay;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { color: #fff; margin-bottom: 16px; }
        .cta-section p { color: rgba(255,255,255,0.7); max-width: 560px; margin: 0 auto 32px; font-size: 1.1rem; }
        .cta-section .btn-cta {
            padding: 16px 48px;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
            box-shadow: 0 8px 32px rgba(233,69,96,0.35);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .cta-section .btn-cta:hover { background: var(--accent-dark); transform: translateY(-3px); box-shadow: 0 12px 40px rgba(233,69,96,0.5); }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand .logo { color: #fff; margin-bottom: 16px; }
        .footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.5); max-width: 300px; }
        .footer-col h5 { color: #fff; font-size: 1rem; margin-bottom: 16px; font-weight: 600; }
        .footer-col a { display: block; color: rgba(255,255,255,0.55); font-size: 0.9rem; padding: 4px 0; transition: color var(--transition); }
        .footer-col a:hover { color: var(--accent); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.4); }
        .footer-bottom a:hover { color: var(--accent); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .features-grid { grid-template-columns: repeat(2,1fr); }
            .category-grid { grid-template-columns: repeat(2,1fr); }
            .hot-grid { grid-template-columns: repeat(2,1fr); }
            .steps-grid { grid-template-columns: repeat(2,1fr); }
            .steps-grid .step-card:nth-child(2)::after { display: none; }
            .footer-grid { grid-template-columns: repeat(2,1fr); }
            .hero h1 { font-size: 2.6rem; }
        }
        @media (max-width: 768px) {
            .nav { display: none; position: absolute; top: var(--header-height); left: 0; width: 100%; background: rgba(255,255,255,0.98); flex-direction: column; padding: 16px 24px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow); }
            .nav.open { display: flex; }
            .nav a { width: 100%; padding: 14px 20px; }
            .nav a.active::after { display: none; }
            .nav-cta { margin-top: 8px; text-align: center; }
            .hamburger { display: flex; }
            .hero { padding: 120px 0 80px; min-height: auto; }
            .hero h1 { font-size: 2rem; }
            .hero p { font-size: 1rem; }
            .hero-stats { gap: 24px; }
            .hero-stat .num { font-size: 1.8rem; }
            .features-grid { grid-template-columns: 1fr; }
            .category-grid { grid-template-columns: 1fr; }
            .hot-grid { grid-template-columns: 1fr; }
            .steps-grid { grid-template-columns: 1fr; }
            .steps-grid .step-card::after { display: none; }
            .footer-grid { grid-template-columns: 1fr; }
            .news-item { flex-direction: column; align-items: flex-start; padding: 16px 20px; }
            .news-item .right { width: 100%; justify-content: flex-start; }
            .section { padding: 60px 0; }
            h2 { font-size: 1.8rem; }
            .section-title { margin-bottom: 32px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .hero h1 { font-size: 1.6rem; }
            .hero-buttons .btn-primary, .hero-buttons .btn-secondary { width: 100%; justify-content: center; padding: 14px 24px; }
            .hero-stats { flex-direction: column; gap: 16px; }
            .container { padding: 0 16px; }
            .cta-section .btn-cta { width: 100%; justify-content: center; }
        }

        /* ===== 辅助 ===== */
        .text-center { text-align: center; }
        .mt-12 { margin-top: 12px; }
        .mt-24 { margin-top: 24px; }
        .mb-12 { margin-bottom: 12px; }
        .gap-8 { gap: 8px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }

/* roulang page: article */
/* ===== 设计变量 ===== */
    :root {
        --primary: #FF6A00;
        --primary-dark: #E55D00;
        --primary-light: #FF8C38;
        --primary-gradient: linear-gradient(135deg, #FF6A00 0%, #FF8C38 100%);
        --accent: #FFB800;
        --accent-dark: #E5A600;
        --bg-body: #F8F9FC;
        --bg-card: #FFFFFF;
        --bg-dark: #1A1A2E;
        --bg-dark-alt: #16213E;
        --text-primary: #1E293B;
        --text-secondary: #475569;
        --text-muted: #94A3B8;
        --text-light: #F1F5F9;
        --border-color: #E2E8F0;
        --border-light: #F1F5F9;
        --radius-sm: 6px;
        --radius-md: 12px;
        --radius-lg: 20px;
        --radius-xl: 28px;
        --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), 0 2px 8px rgba(0,0,0,0.04);
        --shadow-lg: 0 12px 40px rgba(0,0,0,0.12), 0 4px 16px rgba(0,0,0,0.06);
        --shadow-xl: 0 24px 60px rgba(0,0,0,0.16);
        --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
        --container-max: 1200px;
        --header-height: 72px;
    }

    /* ===== Reset / Base ===== */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
    body {
        font-family: var(--font-sans);
        font-size: 16px;
        line-height: 1.7;
        color: var(--text-primary);
        background: var(--bg-body);
    }
    a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
    a:hover { color: var(--primary-dark); }
    img { max-width: 100%; height: auto; display: block; }
    button, input, textarea { font-family: inherit; font-size: inherit; }
    ul, ol { list-style: none; }
    h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
    h1 { font-size: 2.4rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }
    h4 { font-size: 1.2rem; }
    h5 { font-size: 1rem; }
    p { margin-bottom: 1rem; color: var(--text-secondary); }
    p:last-child { margin-bottom: 0; }

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

    /* ===== Header / Nav ===== */
    .header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        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-color);
        height: var(--header-height);
        transition: background var(--transition), box-shadow var(--transition);
    }
    .header.scrolled { box-shadow: var(--shadow-md); background: rgba(255,255,255,0.98); }
    .header .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 100%;
    }
    .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 1.35rem;
        font-weight: 800;
        color: var(--text-primary);
        letter-spacing: -0.5px;
    }
    .logo i { color: var(--primary); font-size: 1.6rem; }
    .logo span { background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .nav {
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .nav a {
        padding: 8px 18px;
        border-radius: var(--radius-sm);
        color: var(--text-secondary);
        font-weight: 500;
        font-size: 0.925rem;
        transition: all var(--transition);
        position: relative;
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .nav a i { font-size: 0.85rem; }
    .nav a:hover { color: var(--primary); background: rgba(255,106,0,0.07); }
    .nav a.active { color: var(--primary); background: rgba(255,106,0,0.12); font-weight: 600; }
    .nav a.nav-cta {
        background: var(--primary-gradient);
        color: #fff;
        border-radius: var(--radius-md);
        padding: 8px 22px;
        font-weight: 600;
        box-shadow: 0 4px 12px rgba(255,106,0,0.3);
    }
    .nav a.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(255,106,0,0.35); color: #fff; }
    .nav-toggle {
        display: none;
        font-size: 1.5rem;
        color: var(--text-primary);
        background: none;
        border: none;
        cursor: pointer;
        padding: 8px;
        border-radius: var(--radius-sm);
        transition: background var(--transition);
    }
    .nav-toggle:hover { background: rgba(0,0,0,0.05); }
    .mobile-nav {
        display: none;
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(16px);
        padding: 16px 24px 24px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
        z-index: 999;
        flex-direction: column;
        gap: 8px;
    }
    .mobile-nav.open { display: flex; }
    .mobile-nav a {
        padding: 12px 16px;
        border-radius: var(--radius-sm);
        color: var(--text-secondary);
        font-weight: 500;
        display: flex;
        align-items: center;
        gap: 10px;
        transition: all var(--transition);
    }
    .mobile-nav a:hover { background: rgba(255,106,0,0.07); color: var(--primary); }
    .mobile-nav a.active { background: rgba(255,106,0,0.12); color: var(--primary); font-weight: 600; }
    .mobile-nav a.nav-cta { background: var(--primary-gradient); color: #fff; border-radius: var(--radius-md); justify-content: center; }

    /* ===== Page Hero / Banner ===== */
    .page-banner {
        padding-top: calc(var(--header-height) + 40px);
        padding-bottom: 50px;
        background: linear-gradient(135deg, #1A1A2E 0%, #16213E 50%, #0F3460 100%);
        position: relative;
        overflow: hidden;
        min-height: 220px;
        display: flex;
        align-items: center;
    }
    .page-banner::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-banner .container { position: relative; z-index: 2; }
    .page-banner h1 {
        color: #fff;
        font-size: 1.8rem;
        font-weight: 800;
        margin-bottom: 8px;
        letter-spacing: -0.3px;
    }
    .page-banner .breadcrumb {
        display: flex;
        align-items: center;
        gap: 8px;
        color: rgba(255,255,255,0.6);
        font-size: 0.9rem;
    }
    .page-banner .breadcrumb a { color: var(--accent); }
    .page-banner .breadcrumb a:hover { color: #fff; }
    .page-banner .breadcrumb i { font-size: 0.75rem; }

    /* ===== Article Section ===== */
    .article-section {
        padding: 50px 0 70px;
    }
    .article-wrapper {
        display: grid;
        grid-template-columns: 1fr 320px;
        gap: 40px;
        align-items: start;
    }
    .article-main {
        background: var(--bg-card);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--border-color);
        overflow: hidden;
    }
    .article-header {
        padding: 32px 36px 20px;
        border-bottom: 1px solid var(--border-light);
    }
    .article-meta {
        display: flex;
        align-items: center;
        gap: 16px;
        flex-wrap: wrap;
        margin-bottom: 14px;
    }
    .article-meta .badge {
        display: inline-block;
        padding: 4px 14px;
        border-radius: 20px;
        font-size: 0.8rem;
        font-weight: 600;
        background: rgba(255,106,0,0.12);
        color: var(--primary);
    }
    .article-meta .date {
        font-size: 0.85rem;
        color: var(--text-muted);
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .article-meta .date i { font-size: 0.8rem; }
    .article-header h1 {
        font-size: 1.8rem;
        line-height: 1.35;
        color: var(--text-primary);
        margin-bottom: 0;
    }
    .article-body {
        padding: 32px 36px 40px;
    }
    .article-body p {
        margin-bottom: 1.2rem;
        color: var(--text-secondary);
        line-height: 1.85;
        font-size: 1.025rem;
    }
    .article-body h2, .article-body h3, .article-body h4 {
        margin-top: 1.8rem;
        margin-bottom: 0.8rem;
        color: var(--text-primary);
    }
    .article-body h2 { font-size: 1.5rem; }
    .article-body h3 { font-size: 1.25rem; }
    .article-body ul, .article-body ol {
        margin: 1rem 0 1.2rem 1.6rem;
        color: var(--text-secondary);
        line-height: 1.85;
    }
    .article-body ul { list-style: disc; }
    .article-body ol { list-style: decimal; }
    .article-body li { margin-bottom: 0.4rem; }
    .article-body img {
        border-radius: var(--radius-md);
        margin: 1.5rem 0;
        box-shadow: var(--shadow-sm);
        width: 100%;
    }
    .article-body blockquote {
        border-left: 4px solid var(--primary);
        background: rgba(255,106,0,0.05);
        padding: 16px 22px;
        margin: 1.5rem 0;
        border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        color: var(--text-secondary);
        font-style: italic;
    }
    .article-body a { color: var(--primary); text-decoration: underline; text-underline-offset: 2px; }
    .article-body a:hover { color: var(--primary-dark); }
    .article-body .cms-content { max-width: 100%; }
    .article-body .cms-content p:last-child { margin-bottom: 0; }
    .article-footer {
        padding: 20px 36px 32px;
        border-top: 1px solid var(--border-light);
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 12px;
    }
    .article-tags {
        display: flex;
        align-items: center;
        gap: 8px;
        flex-wrap: wrap;
    }
    .article-tags span { font-size: 0.85rem; color: var(--text-muted); }
    .article-tags .tag {
        display: inline-block;
        padding: 3px 12px;
        border-radius: 16px;
        font-size: 0.8rem;
        background: var(--bg-body);
        color: var(--text-secondary);
        border: 1px solid var(--border-color);
        transition: all var(--transition);
    }
    .article-tags .tag:hover { border-color: var(--primary); color: var(--primary); }
    .article-share {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .article-share a {
        width: 36px;
        height: 36px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        background: var(--bg-body);
        color: var(--text-secondary);
        border: 1px solid var(--border-color);
        transition: all var(--transition);
        font-size: 0.9rem;
    }
    .article-share a:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

    /* ===== Sidebar ===== */
    .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-color);
        padding: 24px;
    }
    .sidebar-card h4 {
        font-size: 1.05rem;
        margin-bottom: 16px;
        padding-bottom: 12px;
        border-bottom: 2px solid var(--border-light);
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .sidebar-card h4 i { color: var(--primary); }
    .sidebar-list li {
        padding: 10px 0;
        border-bottom: 1px solid var(--border-light);
    }
    .sidebar-list li:last-child { border-bottom: none; }
    .sidebar-list a {
        color: var(--text-secondary);
        font-size: 0.925rem;
        display: flex;
        align-items: center;
        gap: 8px;
        transition: all var(--transition);
    }
    .sidebar-list a:hover { color: var(--primary); transform: translateX(4px); }
    .sidebar-list a i { font-size: 0.75rem; color: var(--primary); }
    .sidebar-cta {
        background: var(--primary-gradient);
        color: #fff;
        text-align: center;
        padding: 28px 20px;
        border: none;
    }
    .sidebar-cta h4 { color: #fff; border-bottom-color: rgba(255,255,255,0.2); }
    .sidebar-cta h4 i { color: #fff; }
    .sidebar-cta p { color: rgba(255,255,255,0.85); font-size: 0.9rem; margin-bottom: 18px; }
    .sidebar-cta .btn-white {
        display: inline-block;
        background: #fff;
        color: var(--primary);
        padding: 10px 28px;
        border-radius: var(--radius-md);
        font-weight: 600;
        font-size: 0.95rem;
        transition: all var(--transition);
        box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    }
    .sidebar-cta .btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); color: var(--primary-dark); }

    /* ===== Not Found ===== */
    .not-found {
        text-align: center;
        padding: 60px 20px;
    }
    .not-found i { font-size: 3.5rem; color: var(--text-muted); margin-bottom: 20px; }
    .not-found h2 { font-size: 1.6rem; margin-bottom: 12px; }
    .not-found p { color: var(--text-muted); margin-bottom: 24px; }
    .not-found .btn-back {
        display: inline-block;
        padding: 12px 32px;
        background: var(--primary-gradient);
        color: #fff;
        border-radius: var(--radius-md);
        font-weight: 600;
        transition: all var(--transition);
        box-shadow: 0 4px 12px rgba(255,106,0,0.3);
    }
    .not-found .btn-back:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(255,106,0,0.35); color: #fff; }

    /* ===== Footer ===== */
    .footer {
        background: var(--bg-dark);
        color: rgba(255,255,255,0.7);
        padding: 60px 0 0;
    }
    .footer .logo { color: #fff; }
    .footer .logo i { color: var(--primary); }
    .footer .logo span { -webkit-text-fill-color: #fff; }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
        gap: 40px;
        padding-bottom: 40px;
        border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .footer-brand p { color: rgba(255,255,255,0.55); font-size: 0.9rem; line-height: 1.7; margin-top: 12px; }
    .footer-col h5 {
        color: #fff;
        font-size: 1rem;
        font-weight: 600;
        margin-bottom: 18px;
    }
    .footer-col a {
        display: block;
        color: rgba(255,255,255,0.55);
        font-size: 0.9rem;
        padding: 5px 0;
        transition: all var(--transition);
    }
    .footer-col a:hover { color: var(--primary); padding-left: 4px; }
    .footer-col a i { width: 20px; margin-right: 4px; }
    .footer-bottom {
        padding: 20px 0;
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 12px;
        font-size: 0.85rem;
        color: rgba(255,255,255,0.4);
    }
    .footer-bottom a { color: rgba(255,255,255,0.5); }
    .footer-bottom a:hover { color: var(--primary); }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
        .article-wrapper { grid-template-columns: 1fr; }
        .sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
        .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
        :root { --header-height: 64px; }
        .nav { display: none; }
        .nav-toggle { display: block; }
        .page-banner { padding-top: calc(var(--header-height) + 24px); padding-bottom: 32px; min-height: 160px; }
        .page-banner h1 { font-size: 1.4rem; }
        .article-header, .article-body, .article-footer { padding-left: 20px; padding-right: 20px; }
        .article-header h1 { font-size: 1.4rem; }
        .article-body p { font-size: 0.975rem; }
        .sidebar { grid-template-columns: 1fr; }
        .footer-grid { grid-template-columns: 1fr; gap: 28px; }
        .footer-bottom { flex-direction: column; text-align: center; }
        h1 { font-size: 1.8rem; }
        h2 { font-size: 1.5rem; }
    }
    @media (max-width: 520px) {
        .container { padding: 0 16px; }
        .page-banner h1 { font-size: 1.2rem; }
        .article-header h1 { font-size: 1.2rem; }
        .article-meta { gap: 10px; }
        .article-footer { flex-direction: column; align-items: flex-start; }
        .logo { font-size: 1.1rem; }
        .logo i { font-size: 1.3rem; }
    }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #8B5CF6;
            --primary-dark: #7C3AED;
            --primary-light: #A78BFA;
            --secondary: #3B82F6;
            --secondary-light: #60A5FA;
            --accent: #F59E0B;
            --accent-light: #FBBF24;
            --bg-deep: #0B1120;
            --bg-card: #1E293B;
            --bg-card-hover: #273548;
            --bg-section: #0F172A;
            --bg-section-alt: #131D33;
            --text-primary: #F1F5F9;
            --text-secondary: #CBD5E1;
            --text-muted: #94A3B8;
            --text-dark: #0F172A;
            --border-color: #2D3A52;
            --border-radius: 12px;
            --border-radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 30px rgba(139, 92, 246, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-deep);
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-light);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--text-primary);
        }
        h1 {
            font-size: clamp(2.2rem, 5vw, 3.8rem);
        }
        h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.8rem);
        }
        h3 {
            font-size: clamp(1.3rem, 2vw, 1.8rem);
        }
        h4 {
            font-size: clamp(1.1rem, 1.5vw, 1.4rem);
        }
        p {
            color: var(--text-secondary);
            margin-bottom: 1rem;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-padding {
            padding: 80px 0;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 56px 0;
            }
            .container {
                padding: 0 16px;
            }
        }
        .text-center {
            text-align: center;
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            margin-bottom: 12px;
        }
        .section-title p {
            max-width: 640px;
            margin: 0 auto;
            font-size: 1.1rem;
            color: var(--text-muted);
        }
        .section-title .badge-title {
            display: inline-block;
            background: rgba(139, 92, 246, 0.15);
            color: var(--primary-light);
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
            border: 1px solid rgba(139, 92, 246, 0.2);
        }

        /* ===== Header & Navigation ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(11, 17, 32, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(45, 58, 82, 0.5);
            transition: var(--transition);
            height: var(--header-height);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
        }
        .logo i {
            color: var(--primary);
            font-size: 1.6rem;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo span {
            background: linear-gradient(135deg, var(--text-primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav a {
            padding: 8px 18px;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav a i {
            font-size: 0.9rem;
        }
        .nav a:hover {
            color: var(--text-primary);
            background: rgba(139, 92, 246, 0.08);
        }
        .nav a.active {
            color: var(--text-primary);
            background: rgba(139, 92, 246, 0.15);
            box-shadow: inset 0 0 0 1px rgba(139, 92, 246, 0.2);
        }
        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav a.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 8px 24px;
            border-radius: 50px;
            font-weight: 600;
            box-shadow: 0 4px 16px rgba(139, 92, 246, 0.3);
        }
        .nav a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(139, 92, 246, 0.4);
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            color: #fff;
        }
        .nav a.nav-cta i {
            font-size: 0.85rem;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 6px;
            background: none;
            border: none;
        }
        .hamburger span {
            width: 26px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 4px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        @media (max-width: 820px) {
            .hamburger {
                display: flex;
            }
            .nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                width: 100%;
                background: rgba(11, 17, 32, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px 32px;
                gap: 6px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-110%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                box-shadow: var(--shadow-lg);
            }
            .nav.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .nav a {
                width: 100%;
                padding: 12px 18px;
                font-size: 1.05rem;
                justify-content: center;
            }
            .nav a.active::after {
                display: none;
            }
            .nav a.nav-cta {
                margin-top: 8px;
                text-align: center;
                justify-content: center;
            }
        }

        /* ===== Hero Banner ===== */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            padding: 120px 0 80px;
            margin-top: 0;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 17, 32, 0.88) 0%, rgba(11, 17, 32, 0.6) 50%, rgba(139, 92, 246, 0.15) 100%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 820px;
        }
        .hero h1 {
            font-size: clamp(2.6rem, 6vw, 4.2rem);
            font-weight: 900;
            letter-spacing: -1px;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #fff 40%, var(--primary-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: clamp(1.1rem, 2vw, 1.35rem);
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .hero .hero-badges {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-bottom: 32px;
        }
        .hero .hero-badges span {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 6px;
            backdrop-filter: blur(4px);
        }
        .hero .hero-badges span i {
            color: var(--accent);
            font-size: 0.75rem;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            background: none;
            color: var(--text-primary);
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 4px 20px rgba(139, 92, 246, 0.35);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 36px rgba(139, 92, 246, 0.45);
            color: #fff;
        }
        .btn-secondary {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--text-primary);
            backdrop-filter: blur(4px);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-3px);
            color: var(--text-primary);
            border-color: rgba(139, 92, 246, 0.3);
        }
        .btn-accent {
            background: linear-gradient(135deg, var(--accent), #D97706);
            color: #0B1120;
            box-shadow: 0 4px 20px rgba(245, 158, 11, 0.3);
        }
        .btn-accent:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 36px rgba(245, 158, 11, 0.4);
            color: #0B1120;
        }
        .hero-scroll {
            position: absolute;
            bottom: 32px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            color: var(--text-muted);
            font-size: 0.8rem;
            animation: bounce 2s infinite;
        }
        .hero-scroll i {
            font-size: 1.2rem;
        }
        @keyframes bounce {
            0%,
            100% {
                transform: translateX(-50%) translateY(0);
            }
            50% {
                transform: translateX(-50%) translateY(8px);
            }
        }

        @media (max-width: 768px) {
            .hero {
                min-height: 80vh;
                padding: 100px 0 60px;
            }
            .hero p {
                font-size: 1rem;
            }
            .hero .hero-badges span {
                font-size: 0.78rem;
                padding: 4px 14px;
            }
            .btn {
                padding: 12px 28px;
                font-size: 0.95rem;
            }
        }

        /* ===== About Section ===== */
        .about-section {
            background: var(--bg-section);
            position: relative;
            overflow: hidden;
        }
        .about-section::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.06), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .about-image {
            border-radius: var(--border-radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .about-image img {
            width: 100%;
            height: 400px;
            object-fit: cover;
            transition: var(--transition);
        }
        .about-image:hover img {
            transform: scale(1.03);
        }
        .about-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 17, 32, 0.3), transparent);
        }
        .about-content h2 {
            margin-bottom: 16px;
        }
        .about-content p {
            margin-bottom: 20px;
            font-size: 1.05rem;
        }
        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 24px;
        }
        .about-features .feature-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            background: rgba(139, 92, 246, 0.06);
            border-radius: 10px;
            border: 1px solid rgba(139, 92, 246, 0.08);
            transition: var(--transition);
        }
        .about-features .feature-item:hover {
            background: rgba(139, 92, 246, 0.1);
            border-color: rgba(139, 92, 246, 0.2);
            transform: translateX(4px);
        }
        .about-features .feature-item i {
            font-size: 1.2rem;
            color: var(--primary-light);
            width: 28px;
            text-align: center;
        }
        .about-features .feature-item span {
            font-size: 0.95rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        @media (max-width: 820px) {
            .about-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .about-image img {
                height: 260px;
            }
            .about-features {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Game Categories ===== */
        .categories-section {
            background: var(--bg-section-alt);
        }
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .category-card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(139, 92, 246, 0.25);
            background: var(--bg-card-hover);
        }
        .category-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: var(--transition);
        }
        .category-card:hover .card-img {
            transform: scale(1.05);
        }
        .category-card .card-body {
            padding: 20px 24px 24px;
        }
        .category-card .card-body h3 {
            margin-bottom: 8px;
            font-size: 1.2rem;
        }
        .category-card .card-body p {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .category-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .category-card .card-tags span {
            background: rgba(139, 92, 246, 0.1);
            color: var(--primary-light);
            padding: 3px 12px;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 500;
            border: 1px solid rgba(139, 92, 246, 0.1);
        }
        .category-card .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--border-color);
        }
        .category-card .card-footer .game-count {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .category-card .card-footer .game-count i {
            color: var(--accent);
            margin-right: 4px;
        }
        .category-card .card-footer .card-link {
            color: var(--primary-light);
            font-weight: 600;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .category-card .card-footer .card-link:hover {
            color: var(--accent-light);
        }

        @media (max-width: 1024px) {
            .categories-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 580px) {
            .categories-grid {
                grid-template-columns: 1fr;
            }
            .category-card .card-img {
                height: 180px;
            }
        }

        /* ===== Features Section ===== */
        .features-section {
            background: var(--bg-section);
            position: relative;
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(139, 92, 246, 0.2);
            background: var(--bg-card-hover);
        }
        .feature-card .icon-wrap {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(59, 130, 246, 0.1));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.8rem;
            color: var(--primary-light);
            transition: var(--transition);
        }
        .feature-card:hover .icon-wrap {
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.25), rgba(59, 130, 246, 0.2));
            transform: scale(1.05);
        }
        .feature-card h4 {
            margin-bottom: 10px;
            font-size: 1.15rem;
        }
        .feature-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        @media (max-width: 900px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
            .feature-card {
                padding: 24px 18px;
            }
        }

        /* ===== Stats Section ===== */
        .stats-section {
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat fixed;
            position: relative;
            padding: 100px 0;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(11, 17, 32, 0.85);
            z-index: 1;
        }
        .stats-section .container {
            position: relative;
            z-index: 2;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }
        .stat-item .stat-number {
            font-size: clamp(2.4rem, 4vw, 3.6rem);
            font-weight: 900;
            background: linear-gradient(135deg, var(--primary-light), var(--accent-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-top: 8px;
            font-weight: 500;
        }
        .stat-item .stat-icon {
            font-size: 2rem;
            color: rgba(139, 92, 246, 0.3);
            margin-bottom: 12px;
        }

        @media (max-width: 820px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 40px 24px;
            }
            .stats-section {
                padding: 72px 0;
                background-attachment: scroll;
            }
        }
        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px 16px;
            }
            .stat-item .stat-number {
                font-size: 2rem;
            }
        }

        /* ===== Testimonials Section ===== */
        .testimonials-section {
            background: var(--bg-section-alt);
        }
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            padding: 28px 24px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .testimonial-card:hover {
            border-color: rgba(139, 92, 246, 0.2);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .testimonial-card .stars {
            color: var(--accent);
            font-size: 0.9rem;
            margin-bottom: 14px;
            letter-spacing: 2px;
        }
        .testimonial-card blockquote {
            font-size: 0.98rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 18px;
            font-style: italic;
        }
        .testimonial-card blockquote::before {
            content: '\201C';
            font-size: 2rem;
            color: var(--primary);
            opacity: 0.3;
            line-height: 0;
            vertical-align: -0.4em;
            margin-right: 4px;
        }
        .testimonial-card .author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .testimonial-card .author .avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            flex-shrink: 0;
        }
        .testimonial-card .author .info .name {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-primary);
        }
        .testimonial-card .author .info .role {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        @media (max-width: 900px) {
            .testimonials-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 580px) {
            .testimonials-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            background: var(--bg-section);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(139, 92, 246, 0.15);
        }
        .faq-item .faq-question {
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-primary);
            transition: var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            gap: 16px;
        }
        .faq-item .faq-question:hover {
            color: var(--primary-light);
        }
        .faq-item .faq-question i {
            color: var(--primary-light);
            transition: var(--transition);
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-item .faq-answer p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            position: relative;
            padding: 100px 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 17, 32, 0.85) 0%, rgba(139, 92, 246, 0.2) 100%);
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            font-size: clamp(2rem, 4vw, 3rem);
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 580px;
            margin: 0 auto 32px;
        }
        .cta-section .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }
        .cta-section .btn-secondary {
            border-color: rgba(255, 255, 255, 0.15);
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 72px 0;
            }
            .cta-section p {
                font-size: 1rem;
            }
        }

        /* ===== Footer ===== */
        .footer {
            background: #070C17;
            border-top: 1px solid rgba(45, 58, 82, 0.4);
            padding: 64px 0 0;
        }
        .footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer .footer-brand .logo {
            font-size: 1.3rem;
            margin-bottom: 16px;
        }
        .footer .footer-brand p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 360px;
        }
        .footer .footer-col h5 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text-primary);
            position: relative;
            padding-bottom: 10px;
        }
        .footer .footer-col h5::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .footer .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.92rem;
            padding: 6px 0;
            transition: var(--transition);
        }
        .footer .footer-col a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer .footer-col a i {
            width: 20px;
            color: var(--primary-light);
            opacity: 0.7;
        }
        .footer .footer-bottom {
            border-top: 1px solid rgba(45, 58, 82, 0.3);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: var(--text-muted);
            gap: 12px;
        }
        .footer .footer-bottom a {
            color: var(--text-muted);
        }
        .footer .footer-bottom a:hover {
            color: var(--primary-light);
        }

        @media (max-width: 900px) {
            .footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer .footer-brand {
                grid-column: 1 / -1;
            }
            .footer .footer-brand p {
                max-width: 100%;
            }
        }
        @media (max-width: 580px) {
            .footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Scroll To Top ===== */
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border: none;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
            transition: var(--transition);
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            z-index: 999;
        }
        .scroll-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .scroll-top:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 32px rgba(139, 92, 246, 0.45);
        }

        /* ===== Utility ===== */
        .gap-8 {
            gap: 8px;
        }
        .gap-12 {
            gap: 12px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* ===== Focus / Accessibility ===== */
        a:focus-visible,
        button:focus-visible,
        .faq-question:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 3px;
            border-radius: 4px;
        }