/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0f1b3d;
            --primary-light: #1a2d6e;
            --primary-dark: #080f24;
            --accent: #e8a621;
            --accent-light: #f0c04a;
            --accent-dark: #c48a0e;
            --bg: #f5f7fc;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0a0f1e;
            --text: #1a1a2e;
            --text-light: #5a6a7a;
            --text-white: #f0f2f5;
            --border: #e2e6ef;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.12);
            --shadow-xl: 0 30px 80px rgba(0,0,0,0.18);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --max-width: 1200px;
            --nav-height: 72px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* ===== 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-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        button, input, textarea { font-family: inherit; font-size: 1rem; outline: none; border: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--primary); }
        h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
        h2 { font-size: clamp(1.5rem, 3.5vw, 2.4rem); }
        h3 { font-size: clamp(1.15rem, 2.5vw, 1.5rem); }
        p { margin-bottom: 0.8rem; }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) { .container { padding: 0 16px; } }

        /* ===== 胶囊导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 12px 0;
            background: rgba(255,255,255,0.75);
            backdrop-filter: blur(20px) saturate(180%);
            -webkit-backdrop-filter: blur(20px) saturate(180%);
            border-bottom: 1px solid rgba(255,255,255,0.3);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(255,255,255,0.92);
            box-shadow: 0 4px 30px rgba(0,0,0,0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: var(--nav-height);
        }
        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--accent);
            font-size: 1.6rem;
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(15,27,61,0.05);
            padding: 4px;
            border-radius: 60px;
            backdrop-filter: blur(4px);
        }
        .nav-menu a {
            padding: 10px 22px;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-light);
            transition: var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .nav-menu a:hover {
            color: var(--primary);
            background: rgba(15,27,61,0.06);
        }
        .nav-menu a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 14px rgba(15,27,61,0.25);
        }
        .nav-cta {
            background: linear-gradient(135deg, var(--accent), var(--accent-light)) !important;
            color: var(--primary-dark) !important;
            font-weight: 700 !important;
            box-shadow: 0 4px 16px rgba(232,166,33,0.35);
        }
        .nav-cta:hover {
            transform: translateY(-2px) scale(1.02);
            box-shadow: 0 8px 28px rgba(232,166,33,0.45) !important;
            background: linear-gradient(135deg, var(--accent-light), var(--accent)) !important;
        }
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            background: none;
            border: none;
        }
        .mobile-toggle span {
            display: block;
            width: 26px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
            transition: var(--transition);
        }
        @media (max-width: 768px) {
            .nav-menu {
                position: fixed;
                top: 80px;
                left: 16px;
                right: 16px;
                flex-direction: column;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(30px);
                border-radius: 20px;
                padding: 20px;
                gap: 8px;
                box-shadow: 0 20px 60px rgba(0,0,0,0.15);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border: 1px solid rgba(255,255,255,0.4);
            }
            .nav-menu.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-menu a {
                padding: 14px 20px;
                width: 100%;
                text-align: center;
                border-radius: 12px;
            }
            .mobile-toggle { display: flex; }
            .header-inner { padding: 0 16px; }
        }

        /* ===== Hero ===== */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center center;
            background-attachment: fixed;
            padding: 120px 24px 80px;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(8,15,36,0.88) 0%, rgba(15,27,61,0.72) 50%, rgba(10,15,30,0.88) 100%);
            z-index: 1;
        }
        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(232,166,33,0.08) 0%, transparent 60%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(232,166,33,0.15);
            border: 1px solid rgba(232,166,33,0.25);
            color: var(--accent-light);
            padding: 8px 20px;
            border-radius: 60px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 28px;
            backdrop-filter: blur(4px);
        }
        .hero-badge i { font-size: 0.9rem; }
        .hero-title {
            color: #fff;
            font-size: clamp(2.2rem, 6vw, 4rem);
            font-weight: 900;
            line-height: 1.15;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }
        .hero-title span {
            background: linear-gradient(135deg, var(--accent), #f7d875);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-desc {
            color: rgba(255,255,255,0.7);
            font-size: 1.1rem;
            max-width: 620px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            border-radius: 60px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            line-height: 1.2;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary-dark);
            box-shadow: 0 8px 28px rgba(232,166,33,0.35);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 40px rgba(232,166,33,0.5);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255,255,255,0.3);
            backdrop-filter: blur(4px);
        }
        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(232,166,33,0.08);
            transform: translateY(-3px);
        }
        .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-item {
            text-align: center;
        }
        .hero-stat-item .num {
            font-size: 2rem;
            font-weight: 900;
            color: #fff;
            display: block;
        }
        .hero-stat-item .label {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .hero { padding: 100px 16px 60px; }
            .hero-stats { gap: 24px; }
            .hero-stat-item .num { font-size: 1.5rem; }
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-white);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-dark h2,
        .section-dark h3 {
            color: #fff;
        }
        .section-header {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }
        .section-header .subtitle {
            color: var(--accent);
            font-weight: 700;
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 12px;
        }
        .section-header p {
            color: var(--text-light);
            font-size: 1.05rem;
        }
        .section-dark .section-header p {
            color: rgba(255,255,255,0.6);
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
            gap: 28px;
        }
        .card-grid-3 {
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
        }
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border);
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            background: #eef1f8;
        }
        .card-body {
            padding: 24px;
        }
        .card-body h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
        }
        .card-body p {
            color: var(--text-light);
            font-size: 0.92rem;
            line-height: 1.6;
        }
        .card-tag {
            display: inline-block;
            background: rgba(232,166,33,0.1);
            color: var(--accent-dark);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 30px;
            margin-bottom: 12px;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-light);
            margin-top: 12px;
            padding-top: 12px;
            border-top: 1px solid var(--border);
        }
        .card-meta i { width: 14px; }

        /* ===== 功能列表 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 32px;
        }
        .feature-item {
            text-align: center;
            padding: 32px 20px;
            border-radius: var(--radius-md);
            background: var(--bg-white);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .feature-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 18px;
            background: linear-gradient(135deg, rgba(232,166,33,0.12), rgba(232,166,33,0.06));
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent);
        }
        .feature-item h3 {
            font-size: 1.05rem;
            margin-bottom: 8px;
        }
        .feature-item p {
            font-size: 0.9rem;
            color: var(--text-light);
        }

        /* ===== 分类入口 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 20px;
        }
        .category-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
            transition: var(--transition);
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }
        .category-card::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            opacity: 0;
            transition: var(--transition);
        }
        .category-card:hover::before { opacity: 1; }
        .category-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .category-card i {
            font-size: 2rem;
            color: var(--primary-light);
            margin-bottom: 12px;
        }
        .category-card h3 {
            font-size: 1rem;
            margin-bottom: 4px;
        }
        .category-card p {
            font-size: 0.82rem;
            color: var(--text-light);
        }
        .category-card .count {
            display: inline-block;
            background: rgba(15,27,61,0.06);
            color: var(--text-light);
            font-size: 0.75rem;
            padding: 2px 12px;
            border-radius: 30px;
            margin-top: 8px;
        }

        /* ===== 资讯列表 ===== */
        .post-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .post-item {
            display: flex;
            gap: 20px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: var(--transition);
            align-items: flex-start;
        }
        .post-item:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
            transform: translateX(4px);
        }
        .post-thumb {
            width: 120px;
            height: 80px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: #eef1f8;
        }
        .post-info { flex: 1; }
        .post-info h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-info p {
            font-size: 0.88rem;
            color: var(--text-light);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-info .meta {
            font-size: 0.78rem;
            color: #999;
            margin-top: 8px;
            display: flex;
            gap: 16px;
        }
        .post-info .meta i { margin-right: 4px; }
        .empty-list {
            text-align: center;
            padding: 48px 20px;
            color: var(--text-light);
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border);
        }
        .empty-list i { font-size: 2.4rem; color: #ccc; margin-bottom: 12px; display: block; }
        @media (max-width: 640px) {
            .post-item { flex-direction: column; }
            .post-thumb { width: 100%; height: 160px; }
        }

        /* ===== 流程步骤 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 32px;
            counter-reset: step;
        }
        .step-item {
            text-align: center;
            padding: 32px 20px;
            position: relative;
        }
        .step-item::before {
            counter-increment: step;
            content: counter(step);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            margin: 0 auto 18px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-size: 1.2rem;
            font-weight: 900;
            border-radius: 50%;
            box-shadow: 0 8px 24px rgba(15,27,61,0.2);
        }
        .step-item h3 { font-size: 1.05rem; margin-bottom: 6px; }
        .step-item p { font-size: 0.88rem; color: var(--text-light); }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--accent);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 700;
            color: var(--primary);
            font-size: 1rem;
            gap: 12px;
            background: none;
            width: 100%;
            text-align: left;
            border: none;
        }
        .faq-question i {
            color: var(--accent);
            transition: var(--transition);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .faq-question.open i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }
        .faq-answer.open { display: block; }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 80px 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(8,15,36,0.9), rgba(15,27,61,0.8));
        }
        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 600px;
            margin: 0 auto;
        }
        .cta-content h2 {
            color: #fff;
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            margin-bottom: 16px;
        }
        .cta-content p {
            color: rgba(255,255,255,0.65);
            font-size: 1.05rem;
            margin-bottom: 28px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.6);
            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;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            color: rgba(255,255,255,0.55);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: 0.85rem;
        }
        .footer-bottom a { color: var(--accent); }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand { grid-column: 1 / -1; }
        }
        @media (max-width: 480px) {
            .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

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

        /* ===== 响应式微调 ===== */
        @media (max-width: 1024px) {
            .card-grid-3 { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
        }
        @media (max-width: 520px) {
            .section { padding: 48px 0; }
            .hero-actions .btn { width: 100%; justify-content: center; }
            .card-grid { grid-template-columns: 1fr; }
            .feature-grid { grid-template-columns: 1fr 1fr; }
            .category-grid { grid-template-columns: 1fr 1fr; }
            .steps-grid { grid-template-columns: 1fr; }
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #6c5ce7;
            --primary-dark: #5a4bd1;
            --primary-light: #a29bfe;
            --secondary: #fd79a8;
            --accent: #00cec9;
            --bg: #0f0e1a;
            --bg-card: #1a1932;
            --bg-card-hover: #222145;
            --bg-elevated: #252348;
            --text: #f0f0f5;
            --text-muted: #9895b5;
            --text-light: #c8c6e0;
            --border: #2d2b50;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 8px 40px rgba(0,0,0,0.4);
            --shadow-sm: 0 4px 16px rgba(0,0,0,0.3);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container: 1200px;
            --nav-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);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
        a:hover { color: #fff; }
        button, input, textarea { font-family: inherit; }
        ul, ol { list-style: none; }

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

        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0 24px;
        }
        .site-header .container {
            background: rgba(15, 14, 26, 0.78);
            backdrop-filter: blur(20px) saturate(1.4);
            -webkit-backdrop-filter: blur(20px) saturate(1.4);
            border: 1px solid rgba(108, 92, 231, 0.2);
            border-radius: 60px;
            padding: 0 28px;
            height: var(--nav-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 8px 48px rgba(0, 0, 0, 0.5);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.3px;
        }
        .logo i { color: var(--secondary); font-size: 1.6rem; }
        .logo span { background: linear-gradient(135deg, #fff 40%, var(--primary-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-menu a {
            padding: 8px 18px;
            border-radius: 40px;
            color: var(--text-light);
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .nav-menu a i { font-size: 0.85rem; opacity: 0.7; }
        .nav-menu a:hover { background: rgba(108, 92, 231, 0.2); color: #fff; }
        .nav-menu a.active { background: var(--primary); color: #fff; box-shadow: 0 4px 20px rgba(108, 92, 231, 0.4); }
        .nav-menu a.nav-cta {
            background: linear-gradient(135deg, var(--secondary), #e84393);
            color: #fff;
            font-weight: 600;
            padding: 8px 22px;
            box-shadow: 0 4px 20px rgba(253, 121, 168, 0.35);
        }
        .nav-menu a.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(253, 121, 168, 0.5); }
        .nav-toggle { display: none; background: none; border: none; color: #fff; font-size: 1.5rem; cursor: pointer; padding: 8px; }

        /* ===== Hero Banner (Article) ===== */
        .article-hero {
            padding-top: calc(var(--nav-height) + 56px);
            padding-bottom: 60px;
            background: linear-gradient(160deg, #0f0e1a 0%, #1a1932 50%, #0f0e1a 100%);
            position: relative;
            overflow: hidden;
            min-height: 340px;
            display: flex;
            align-items: center;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.08;
            pointer-events: none;
        }
        .article-hero::after {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(108,92,231,0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .article-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .article-hero .breadcrumb {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .article-hero .breadcrumb a { color: var(--text-muted); }
        .article-hero .breadcrumb a:hover { color: var(--primary-light); }
        .article-hero .breadcrumb span { color: var(--text-light); }
        .article-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.25;
            max-width: 800px;
            margin: 0 auto 20px;
            background: linear-gradient(135deg, #fff 30%, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .article-hero .meta {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        .article-hero .meta .badge {
            background: var(--primary);
            color: #fff;
            padding: 4px 16px;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .article-hero .meta i { margin-right: 6px; opacity: 0.7; }

        /* ===== Article Content ===== */
        .article-main {
            padding: 60px 0 80px;
            flex: 1;
        }
        .article-main .container {
            max-width: 860px;
        }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 48px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
        }
        .article-body h2, .article-body h3, .article-body h4 {
            margin-top: 1.8em;
            margin-bottom: 0.8em;
            color: #fff;
            font-weight: 700;
            line-height: 1.3;
        }
        .article-body h2 { font-size: 1.8rem; }
        .article-body h3 { font-size: 1.4rem; }
        .article-body p {
            margin-bottom: 1.2em;
            color: var(--text-light);
            font-size: 1.05rem;
        }
        .article-body ul, .article-body ol {
            margin-bottom: 1.2em;
            padding-left: 1.5em;
            color: var(--text-light);
        }
        .article-body li { margin-bottom: 0.5em; list-style: disc; }
        .article-body ol li { list-style: decimal; }
        .article-body a { color: var(--primary-light); text-decoration: underline; }
        .article-body a:hover { color: #fff; }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            margin: 1.5em 0;
            background: rgba(108, 92, 231, 0.08);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light);
            font-style: italic;
        }
        .article-body img {
            margin: 1.5em auto;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-sm);
        }
        .article-body code {
            background: rgba(255,255,255,0.06);
            padding: 2px 10px;
            border-radius: 6px;
            font-size: 0.9em;
            color: var(--secondary);
        }
        .article-body pre {
            background: #0a0a14;
            padding: 20px 24px;
            border-radius: var(--radius-sm);
            overflow-x: auto;
            margin: 1.5em 0;
            border: 1px solid var(--border);
        }
        .article-body pre code { background: none; padding: 0; color: var(--text-light); }

        .article-notfound {
            text-align: center;
            padding: 80px 20px;
        }
        .article-notfound i { font-size: 4rem; color: var(--text-muted); margin-bottom: 24px; }
        .article-notfound h2 { font-size: 2rem; margin-bottom: 16px; color: #fff; }
        .article-notfound p { color: var(--text-muted); margin-bottom: 32px; font-size: 1.1rem; }
        .article-notfound .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--primary);
            color: #fff;
            padding: 12px 32px;
            border-radius: 40px;
            font-weight: 600;
            transition: var(--transition);
        }
        .article-notfound .btn-back:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(108,92,231,0.4); }

        /* ===== CTA Section ===== */
        .article-cta {
            padding: 60px 0;
            background: linear-gradient(160deg, #1a1932 0%, #0f0e1a 100%);
        }
        .article-cta .cta-card {
            background: linear-gradient(135deg, rgba(108,92,231,0.12), rgba(253,121,168,0.08));
            border: 1px solid rgba(108,92,231,0.2);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            box-shadow: var(--shadow);
        }
        .article-cta h2 { font-size: 2rem; font-weight: 700; margin-bottom: 12px; color: #fff; }
        .article-cta p { color: var(--text-muted); font-size: 1.1rem; margin-bottom: 32px; max-width: 600px; margin-left: auto; margin-right: auto; }
        .article-cta .cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
        .article-cta .btn-primary {
            background: linear-gradient(135deg, var(--primary), #5a4bd1);
            color: #fff;
            padding: 14px 36px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            border: none;
            cursor: pointer;
        }
        .article-cta .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(108,92,231,0.45); }
        .article-cta .btn-secondary {
            background: transparent;
            color: var(--text-light);
            padding: 14px 36px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            border: 1px solid var(--border);
        }
        .article-cta .btn-secondary:hover { background: rgba(255,255,255,0.05); color: #fff; border-color: var(--text-muted); }

        /* ===== Footer ===== */
        .site-footer {
            background: #0a0a14;
            border-top: 1px solid var(--border);
            padding: 60px 0 30px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo { margin-bottom: 16px; }
        .footer-brand p { color: var(--text-muted); font-size: 0.95rem; line-height: 1.7; max-width: 360px; }
        .footer-col h4 { color: #fff; font-size: 1rem; font-weight: 600; margin-bottom: 20px; letter-spacing: 0.5px; }
        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.9rem;
            padding: 6px 0;
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--primary-light); padding-left: 6px; }
        .footer-col a i { width: 22px; opacity: 0.7; }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .footer-bottom a { color: var(--text-muted); }
        .footer-bottom a:hover { color: var(--primary-light); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .site-header .container { padding: 0 16px; height: 64px; border-radius: 40px; }
            .logo { font-size: 1.1rem; }
            .logo i { font-size: 1.3rem; }
            .nav-menu { display: none; }
            .nav-menu.open { display: flex; flex-direction: column; position: absolute; top: calc(100% + 12px); left: 0; right: 0; background: rgba(15,14,26,0.96); backdrop-filter: blur(20px); border: 1px solid var(--border); border-radius: 24px; padding: 16px; gap: 4px; box-shadow: var(--shadow); }
            .nav-toggle { display: block; }
            .article-hero h1 { font-size: 1.8rem; }
            .article-body { padding: 24px; }
            .article-body h2 { font-size: 1.4rem; }
            .article-body h3 { font-size: 1.2rem; }
            .article-body p { font-size: 0.98rem; }
            .article-cta .cta-card { padding: 36px 24px; }
            .article-cta h2 { font-size: 1.5rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .footer-bottom { flex-direction: column; align-items: center; text-align: center; }
            .article-hero .meta { font-size: 0.85rem; gap: 12px; }
        }
        @media (max-width: 520px) {
            .site-header { top: 8px; padding: 0 12px; }
            .site-header .container { padding: 0 12px; height: 56px; }
            .logo { font-size: 0.95rem; gap: 8px; }
            .logo i { font-size: 1.1rem; }
            .nav-menu a { font-size: 0.85rem; padding: 8px 14px; }
            .article-hero h1 { font-size: 1.4rem; }
            .article-body { padding: 16px; }
            .article-body h2 { font-size: 1.2rem; }
            .article-body p { font-size: 0.92rem; }
            .article-cta .cta-card { padding: 28px 16px; }
            .article-cta h2 { font-size: 1.2rem; }
            .article-cta .btn-primary, .article-cta .btn-secondary { padding: 10px 24px; font-size: 0.9rem; }
            .container { padding: 0 16px; }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #6c5ce7;
            --primary-dark: #5a4bd1;
            --primary-light: #a29bfe;
            --secondary: #fd79a8;
            --accent: #00cec9;
            --bg-dark: #0a0a1a;
            --bg-darker: #060612;
            --bg-card: #12122a;
            --bg-card-hover: #1a1a3a;
            --bg-section: #0e0e22;
            --text-primary: #f0f0ff;
            --text-secondary: #b0b0d0;
            --text-muted: #7070a0;
            --border-color: #2a2a5a;
            --border-light: #3a3a6a;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --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 56px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 30px rgba(108, 92, 231, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --container: 1200px;
            --nav-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-dark);
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }

        ul,
        ol {
            list-style: none;
        }

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

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

        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(10, 10, 26, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(42, 42, 90, 0.5);
            transition: var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }
        .logo i {
            color: var(--primary-light);
            font-size: 26px;
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary-light), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-menu a {
            padding: 8px 18px;
            border-radius: 50px;
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .nav-menu a i {
            font-size: 14px;
        }
        .nav-menu a:hover {
            color: var(--text-primary);
            background: rgba(108, 92, 231, 0.12);
        }
        .nav-menu a.active {
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            box-shadow: 0 4px 20px rgba(108, 92, 231, 0.35);
        }
        .nav-menu a.nav-cta {
            background: rgba(253, 121, 168, 0.15);
            color: var(--secondary);
            border: 1px solid rgba(253, 121, 168, 0.2);
        }
        .nav-menu a.nav-cta:hover {
            background: rgba(253, 121, 168, 0.25);
            border-color: rgba(253, 121, 168, 0.4);
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 26px;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.05);
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: block;
            }
            .nav-menu {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(10, 10, 26, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            }
            .nav-menu.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-menu a {
                padding: 12px 20px;
                width: 100%;
                border-radius: var(--radius-sm);
                font-size: 16px;
            }
            .nav-menu a.active {
                background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            }
        }

        @media (max-width: 480px) {
            .logo {
                font-size: 18px;
            }
            .logo i {
                font-size: 20px;
            }
            .nav-menu a {
                font-size: 15px;
                padding: 10px 16px;
            }
        }

        /* ===== Hero / Banner ===== */
        .page-hero {
            position: relative;
            padding: 140px 0 80px;
            margin-top: var(--nav-height);
            min-height: 380px;
            display: flex;
            align-items: center;
            background: var(--bg-darker);
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.25;
            filter: blur(2px) brightness(0.5);
            z-index: 0;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 10, 26, 0.85) 0%, rgba(10, 10, 26, 0.5) 50%, rgba(108, 92, 231, 0.15) 100%);
            z-index: 1;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-hero h1 {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #fff 30%, var(--primary-light) 70%, var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-hero p {
            font-size: 20px;
            color: var(--text-secondary);
            max-width: 700px;
            margin: 0 auto 28px;
            line-height: 1.6;
        }
        .page-hero .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }
        .page-hero .hero-tags span {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 50px;
            background: rgba(108, 92, 231, 0.15);
            border: 1px solid rgba(108, 92, 231, 0.2);
            color: var(--text-secondary);
            font-size: 14px;
            backdrop-filter: blur(4px);
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 110px 0 60px;
                min-height: 300px;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .page-hero p {
                font-size: 17px;
            }
        }
        @media (max-width: 480px) {
            .page-hero h1 {
                font-size: 26px;
            }
            .page-hero p {
                font-size: 15px;
            }
            .page-hero .hero-tags span {
                font-size: 12px;
                padding: 4px 14px;
            }
        }

        /* ===== Section Common ===== */
        .section {
            padding: 80px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 34px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        .section-header h2 i {
            color: var(--primary-light);
            margin-right: 10px;
        }
        .section-header p {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .section-header .divider {
            width: 60px;
            height: 4px;
            border-radius: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            margin: 16px auto 0;
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .section-header p {
                font-size: 16px;
            }
        }
        @media (max-width: 480px) {
            .section-header h2 {
                font-size: 22px;
            }
        }

        /* ===== Cards Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        @media (max-width: 992px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .card:hover {
            transform: translateY(-6px);
            border-color: var(--border-light);
            box-shadow: var(--shadow-md), var(--shadow-glow);
        }
        .card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
            transition: var(--transition);
        }
        .card:hover .card-img {
            transform: scale(1.03);
        }
        .card .card-body {
            padding: 24px 20px 26px;
        }
        .card .card-body h3 {
            font-size: 19px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .card .card-body h3 a {
            color: inherit;
        }
        .card .card-body h3 a:hover {
            color: var(--primary-light);
        }
        .card .card-body p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 14px;
        }
        .card .card-body .meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .card .card-body .meta i {
            margin-right: 4px;
        }
        .card .card-body .tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 50px;
            background: rgba(108, 92, 231, 0.12);
            color: var(--primary-light);
            font-size: 12px;
            font-weight: 500;
        }

        @media (max-width: 480px) {
            .card .card-img {
                height: 160px;
            }
            .card .card-body {
                padding: 18px 16px 20px;
            }
            .card .card-body h3 {
                font-size: 17px;
            }
        }

        /* ===== Featured / Intro Section ===== */
        .intro-section {
            background: var(--bg-section);
            position: relative;
        }
        .intro-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.06;
            pointer-events: none;
        }
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .intro-grid .intro-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-color);
        }
        .intro-grid .intro-image img {
            width: 100%;
            height: 360px;
            object-fit: cover;
            display: block;
        }
        .intro-grid .intro-text h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .intro-grid .intro-text h2 i {
            color: var(--primary-light);
            margin-right: 8px;
        }
        .intro-grid .intro-text p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .intro-grid .intro-text .stats {
            display: flex;
            gap: 32px;
            margin-top: 24px;
            flex-wrap: wrap;
        }
        .intro-grid .intro-text .stats .stat-item {
            text-align: center;
        }
        .intro-grid .intro-text .stats .stat-item .num {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary-light);
            display: block;
        }
        .intro-grid .intro-text .stats .stat-item .label {
            font-size: 14px;
            color: var(--text-muted);
        }

        @media (max-width: 992px) {
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .intro-grid .intro-image img {
                height: 260px;
            }
            .intro-grid .intro-text h2 {
                font-size: 26px;
            }
        }
        @media (max-width: 480px) {
            .intro-grid .intro-image img {
                height: 200px;
            }
            .intro-grid .intro-text h2 {
                font-size: 22px;
            }
            .intro-grid .intro-text .stats {
                gap: 20px;
            }
            .intro-grid .intro-text .stats .stat-item .num {
                font-size: 22px;
            }
        }

        /* ======= Steps / Process ===== */
        .steps-section {
            background: var(--bg-darker);
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
        }
        .step-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
        }
        .step-card .step-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(108, 92, 231, 0.2), rgba(253, 121, 168, 0.1));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 26px;
            color: var(--primary-light);
        }
        .step-card .step-num {
            position: absolute;
            top: 12px;
            right: 16px;
            font-size: 40px;
            font-weight: 800;
            color: rgba(108, 92, 231, 0.08);
            line-height: 1;
        }
        .step-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        @media (max-width: 992px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .step-card {
                padding: 24px 18px;
            }
        }

        /* ===== FAQ ===== */
        .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(--radius-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-item .faq-q {
            padding: 18px 24px;
            font-size: 17px;
            font-weight: 500;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            gap: 12px;
        }
        .faq-item .faq-q i {
            color: var(--primary-light);
            transition: var(--transition);
            font-size: 14px;
            flex-shrink: 0;
        }
        .faq-item .faq-q:hover {
            color: var(--primary-light);
        }
        .faq-item .faq-q.active i {
            transform: rotate(180deg);
        }
        .faq-item .faq-a {
            padding: 0 24px 18px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-item .faq-a.show {
            display: block;
        }

        @media (max-width: 640px) {
            .faq-item .faq-q {
                padding: 14px 18px;
                font-size: 15px;
            }
            .faq-item .faq-a {
                padding: 0 18px 14px;
                font-size: 14px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-darker);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.06;
            pointer-events: none;
        }
        .cta-box {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 48px 32px;
            background: linear-gradient(135deg, rgba(108, 92, 231, 0.08), rgba(253, 121, 168, 0.04));
            border-radius: var(--radius-lg);
            border: 1px solid rgba(108, 92, 231, 0.15);
            max-width: 800px;
            margin: 0 auto;
        }
        .cta-box h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        .cta-box p {
            font-size: 17px;
            color: var(--text-secondary);
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-box .btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            background: transparent;
            color: var(--text-primary);
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 4px 20px rgba(108, 92, 231, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(108, 92, 231, 0.5);
            color: #fff;
        }
        .btn-outline {
            border: 1px solid var(--border-light);
            color: var(--text-secondary);
        }
        .btn-outline:hover {
            border-color: var(--primary-light);
            color: var(--primary-light);
            background: rgba(108, 92, 231, 0.08);
        }

        @media (max-width: 640px) {
            .cta-box {
                padding: 32px 20px;
            }
            .cta-box h2 {
                font-size: 24px;
            }
            .cta-box p {
                font-size: 15px;
            }
            .btn {
                padding: 12px 24px;
                font-size: 15px;
            }
        }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 500;
            background: rgba(108, 92, 231, 0.12);
            color: var(--primary-light);
        }
        .badge-hot {
            background: rgba(253, 121, 168, 0.15);
            color: var(--secondary);
        }
        .badge-new {
            background: rgba(0, 206, 201, 0.15);
            color: var(--accent);
        }

        /* ===== List Section ===== */
        .list-section {
            background: var(--bg-dark);
        }
        .content-list {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .content-list .list-item {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 18px 22px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .content-list .list-item:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }
        .content-list .list-item .item-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(108, 92, 231, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--primary-light);
            font-size: 18px;
        }
        .content-list .list-item .item-content {
            flex: 1;
            min-width: 0;
        }
        .content-list .list-item .item-content h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 2px;
        }
        .content-list .list-item .item-content p {
            font-size: 14px;
            color: var(--text-muted);
            margin: 0;
        }
        .content-list .list-item .item-meta {
            flex-shrink: 0;
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .content-list .list-item .item-meta i {
            margin-right: 2px;
        }

        @media (max-width: 640px) {
            .content-list .list-item {
                flex-wrap: wrap;
                padding: 14px 16px;
                gap: 12px;
            }
            .content-list .list-item .item-meta {
                width: 100%;
                padding-left: 52px;
                font-size: 12px;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-darker);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border-color);
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 15px;
            color: var(--text-secondary);
            padding: 5px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-col a i {
            margin-right: 8px;
            width: 18px;
            text-align: center;
            color: var(--primary-light);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            font-size: 14px;
            color: var(--text-muted);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-footer {
                padding: 40px 0 20px;
            }
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-darker);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 8px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--border-light);
        }

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

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