/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #FF6B35;
            --primary-light: #FF8F5E;
            --primary-dark: #E55A2B;
            --secondary: #2EC4B6;
            --secondary-light: #5DD9CC;
            --accent: #E71D36;
            --accent-light: #FF4D6A;
            --bg: #FEF9F2;
            --bg-alt: #FFFFFF;
            --bg-dark: #2D3436;
            --bg-card: #FFFFFF;
            --text: #2D3436;
            --text-light: #636E72;
            --text-inverse: #FFFFFF;
            --border: #E8E0D8;
            --border-light: #F0EBE4;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.10);
            --shadow-hover: 0 12px 48px rgba(0, 0, 0, 0.14);
            --transition: 0.30s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, 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);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 3px solid var(--primary-light);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            color: var(--text);
            font-weight: 700;
        }
        h1 {
            font-size: clamp(2.2rem, 5.5vw, 3.6rem);
        }
        h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
        }
        h3 {
            font-size: clamp(1.2rem, 2.2vw, 1.6rem);
        }
        h4 {
            font-size: 1.15rem;
        }
        p {
            margin-bottom: 0.8rem;
            color: var(--text-light);
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
            background: var(--primary);
            color: var(--text-inverse);
        }
        .btn:hover {
            background: var(--primary-dark);
            color: var(--text-inverse);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn:active {
            transform: translateY(0);
        }
        .btn-outline {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: var(--text-inverse);
        }
        .btn-secondary {
            background: var(--secondary);
            color: var(--text-inverse);
        }
        .btn-secondary:hover {
            background: #25B0A3;
            color: var(--text-inverse);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 0.9rem;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.1rem;
        }

        /* ===== 标签 / 徽章 ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            background: var(--primary-light);
            color: var(--text-inverse);
            letter-spacing: 0.3px;
        }
        .badge-secondary {
            background: var(--secondary-light);
            color: var(--text);
        }
        .badge-accent {
            background: var(--accent-light);
            color: var(--text-inverse);
        }
        .badge-ghost {
            background: var(--border-light);
            color: var(--text-light);
        }
        .tag {
            display: inline-block;
            padding: 3px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 500;
            background: var(--border-light);
            color: var(--text-light);
            transition: all var(--transition);
        }
        .tag:hover {
            background: var(--primary-light);
            color: var(--text-inverse);
        }

        /* ===== 卡片 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
        }
        .card-body {
            padding: 20px 24px 24px;
        }
        .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }
        .card-text {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.6;
        }
        .card-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 12px;
        }

        /* ===== 板块标题 ===== */
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            margin-bottom: 12px;
        }
        .section-header p {
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto;
            color: var(--text-light);
        }
        .section-subtitle {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--primary);
            margin-bottom: 8px;
        }

        /* ===== 导航 ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            height: var(--header-height);
            transition: all var(--transition);
        }
        .header-scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.5px;
        }
        .logo i {
            color: var(--primary);
            font-size: 1.6rem;
        }
        .logo:hover {
            color: var(--text);
        }
        .nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 50px;
            font-weight: 500;
            color: var(--text-light);
            transition: all var(--transition);
            font-size: 0.95rem;
        }
        .nav a i {
            font-size: 0.9rem;
        }
        .nav a:hover {
            color: var(--primary);
            background: rgba(255, 107, 53, 0.08);
        }
        .nav a.active {
            color: var(--text-inverse);
            background: var(--primary);
        }
        .nav a.active:hover {
            color: var(--text-inverse);
            background: var(--primary-dark);
        }
        .nav-cta {
            margin-left: 12px;
        }
        .nav-cta .btn {
            padding: 8px 22px;
            font-size: 0.9rem;
        }
        .nav-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--text);
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(20px);
            padding: 16px 24px 24px;
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-lg);
            z-index: 999;
            max-height: calc(100vh - var(--header-height));
            overflow-y: auto;
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            color: var(--text-light);
            transition: all var(--transition);
            font-size: 1.05rem;
        }
        .mobile-menu a i {
            width: 24px;
            text-align: center;
            color: var(--primary);
        }
        .mobile-menu a:hover {
            background: rgba(255, 107, 53, 0.08);
            color: var(--primary);
        }
        .mobile-menu a.active {
            color: var(--primary);
            background: rgba(255, 107, 53, 0.10);
            font-weight: 700;
        }
        .mobile-menu .btn {
            margin-top: 12px;
            width: 100%;
            justify-content: center;
        }
        @media (max-width: 768px) {
            .nav {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .header-inner {
                padding: 0 16px;
            }
        }

        /* ===== Hero ===== */
        .hero {
            padding: calc(var(--header-height) + 40px) 0 80px;
            background: linear-gradient(135deg, #FFF5ED 0%, #FEF9F2 50%, #EDFBF9 100%);
            position: relative;
            overflow: hidden;
            min-height: 600px;
            display: flex;
            align-items: center;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 30%;
            opacity: 0.20;
            z-index: 0;
        }
        .hero .container {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .hero-content h1 {
            margin-bottom: 16px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-content p {
            font-size: 1.1rem;
            max-width: 520px;
            margin-bottom: 24px;
            color: var(--text-light);
        }
        .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
        }
        .hero-visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            max-height: 420px;
            width: 100%;
            object-fit: cover;
            aspect-ratio: 4 / 3;
        }
        .hero-tag {
            position: absolute;
            top: 16px;
            left: 16px;
        }
        @media (max-width: 900px) {
            .hero .container {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .hero-content p {
                margin: 0 auto 24px;
            }
            .hero-actions {
                justify-content: center;
            }
            .hero-visual img {
                max-height: 300px;
            }
        }

        /* ===== 特色板块 ===== */
        .section-features {
            padding: 80px 0;
            background: var(--bg-alt);
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-card);
            padding: 32px 28px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.8rem;
            color: var(--text-inverse);
        }
        .feature-icon.orange {
            background: var(--primary);
        }
        .feature-icon.teal {
            background: var(--secondary);
        }
        .feature-icon.pink {
            background: var(--accent-light);
        }
        .feature-card h3 {
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 0.95rem;
        }
        @media (max-width: 768px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .section-features {
                padding: 48px 0;
            }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        /* ===== 分类入口 ===== */
        .section-categories {
            padding: 80px 0;
            background: var(--bg);
        }
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: all var(--transition);
            background: var(--bg-card);
            border: 1px solid var(--border-light);
        }
        .category-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .category-card img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
        }
        .category-card-body {
            padding: 20px 24px 24px;
        }
        .category-card-body h3 {
            margin-bottom: 6px;
        }
        .category-card-body p {
            font-size: 0.95rem;
            margin-bottom: 12px;
        }
        .category-link {
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
        }
        .category-link i {
            transition: transform var(--transition);
        }
        .category-link:hover i {
            transform: translateX(4px);
        }
        @media (max-width: 600px) {
            .categories-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 最新信息列表 ===== */
        .section-latest {
            padding: 80px 0;
            background: var(--bg-alt);
        }
        .latest-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .latest-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .latest-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .latest-card img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
        }
        .latest-card-body {
            padding: 16px 20px 20px;
        }
        .latest-card-body h3 {
            font-size: 1.05rem;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .latest-card-body p {
            font-size: 0.9rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .latest-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-light);
            margin-top: 10px;
            flex-wrap: wrap;
        }
        .latest-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 24px;
            color: var(--text-light);
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border);
        }
        .latest-empty i {
            font-size: 2.4rem;
            color: var(--border);
            margin-bottom: 16px;
            display: block;
        }
        @media (max-width: 768px) {
            .latest-grid {
                grid-template-columns: 1fr;
            }
            .section-latest {
                padding: 48px 0;
            }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .latest-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        /* ===== 数据统计 ===== */
        .section-stats {
            padding: 64px 0;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: var(--text-inverse);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }
        .stat-item h3 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-inverse);
            margin-bottom: 4px;
        }
        .stat-item p {
            color: rgba(255, 255, 255, 0.80);
            font-size: 0.95rem;
        }
        @media (max-width: 600px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .stat-item h3 {
                font-size: 1.8rem;
            }
        }

        /* ===== 使用流程 ===== */
        .section-process {
            padding: 80px 0;
            background: var(--bg);
        }
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-card {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            position: relative;
            transition: all var(--transition);
        }
        .step-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--text-inverse);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0 auto 16px;
        }
        .step-card h3 {
            margin-bottom: 6px;
            font-size: 1.1rem;
        }
        .step-card p {
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .section-process {
                padding: 48px 0;
            }
        }
        @media (max-width: 480px) {
            .process-steps {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ ===== */
        .section-faq {
            padding: 80px 0;
            background: var(--bg-alt);
        }
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            cursor: pointer;
            transition: all var(--transition);
            background: none;
            width: 100%;
            text-align: left;
        }
        .faq-question i {
            color: var(--primary);
            transition: transform var(--transition);
            font-size: 0.9rem;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .section-cta {
            padding: 72px 0;
            background: linear-gradient(135deg, var(--secondary), #1DA89A);
            color: var(--text-inverse);
            text-align: center;
        }
        .section-cta h2 {
            color: var(--text-inverse);
            margin-bottom: 12px;
        }
        .section-cta p {
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 24px;
            font-size: 1.05rem;
        }
        .section-cta .btn {
            background: var(--text-inverse);
            color: var(--secondary);
        }
        .section-cta .btn:hover {
            background: var(--bg);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.80);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            color: var(--text-inverse);
            margin-bottom: 12px;
        }
        .footer-brand .logo i {
            color: var(--primary-light);
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
            max-width: 320px;
        }
        .footer-col h4 {
            color: var(--text-inverse);
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col a {
            display: block;
            padding: 4px 0;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
            transition: all var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.10);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.50);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.65);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

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

        /* ===== 响应式微调 ===== */
        @media (max-width: 520px) {
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .category-card-body {
                padding: 16px;
            }
            .card-body {
                padding: 16px;
            }
            .section-header {
                margin-bottom: 28px;
            }
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #e8533a;
            --primary-light: #f06a53;
            --primary-dark: #c73a24;
            --secondary: #f4a261;
            --accent: #2a9d8f;
            --bg-light: #fdf6f0;
            --bg-white: #ffffff;
            --bg-dark: #1a1a2e;
            --bg-card: #ffffff;
            --text-dark: #1e1e2a;
            --text-muted: #6b7280;
            --text-light: #9ca3af;
            --border: #e8e0d8;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.08);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.10);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --transition: 0.25s ease;
            --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; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-dark);
            background: var(--bg-light);
        }
        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; border-radius: var(--radius-sm); }
        button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }
        button { cursor: pointer; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-dark); }
        h1 { font-size: 2.4rem; }
        h2 { font-size: 2rem; }
        h3 { font-size: 1.4rem; }
        h4 { font-size: 1.15rem; }
        p { margin-bottom: 1rem; color: var(--text-muted); }
        .container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 12px 28px; border-radius: var(--radius-sm);
            font-weight: 600; font-size: 0.95rem;
            transition: all var(--transition); border: 2px solid transparent;
            justify-content: center;
        }
        .btn-primary {
            background: var(--primary); color: #fff; border-color: var(--primary);
        }
        .btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(232,83,58,0.3); }
        .btn-outline {
            background: transparent; color: var(--primary); border-color: var(--primary);
        }
        .btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
        .btn-sm { padding: 8px 20px; font-size: 0.85rem; }
        .btn-lg { padding: 16px 36px; font-size: 1.1rem; }

        /* ===== 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);
            border-bottom: 1px solid var(--border);
            height: var(--header-height);
            transition: box-shadow var(--transition);
        }
        .header.scrolled { box-shadow: var(--shadow-md); }
        .header-inner {
            max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
            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(--text-dark);
        }
        .logo i { color: var(--primary); font-size: 1.6rem; }
        .logo:hover { color: var(--primary); }
        .nav { display: flex; align-items: center; gap: 8px; }
        .nav a {
            padding: 8px 16px; border-radius: var(--radius-sm);
            font-weight: 500; font-size: 0.92rem; color: var(--text-muted);
            transition: all var(--transition); display: flex; align-items: center; gap: 6px;
        }
        .nav a i { font-size: 0.9rem; }
        .nav a:hover { color: var(--primary); background: rgba(232,83,58,0.06); }
        .nav a.active { color: var(--primary); background: rgba(232,83,58,0.10); font-weight: 600; }
        .nav .nav-cta { margin-left: 8px; }
        .nav-toggle { display: none; font-size: 1.5rem; color: var(--text-dark); padding: 8px; }

        /* ===== Article Banner ===== */
        .article-banner {
            padding: calc(var(--header-height) + 60px) 0 60px;
            background: linear-gradient(135deg, #fdf6f0 0%, #fceade 100%);
            position: relative; overflow: hidden;
        }
        .article-banner::before {
            content: ''; position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.08; pointer-events: none;
        }
        .article-banner .container { position: relative; z-index: 1; }
        .article-breadcrumb {
            display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
            font-size: 0.88rem; color: var(--text-muted); margin-bottom: 24px;
        }
        .article-breadcrumb a { color: var(--text-muted); }
        .article-breadcrumb a:hover { color: var(--primary); }
        .article-breadcrumb span { color: var(--text-light); }
        .article-meta {
            display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
            margin-bottom: 16px;
        }
        .article-meta .badge {
            display: inline-flex; align-items: center; gap: 4px;
            padding: 4px 14px; border-radius: 50px;
            font-size: 0.8rem; font-weight: 600;
            background: var(--primary); color: #fff;
        }
        .article-meta .badge i { font-size: 0.75rem; }
        .article-meta .date {
            font-size: 0.88rem; color: var(--text-muted);
            display: flex; align-items: center; gap: 6px;
        }
        .article-meta .date i { font-size: 0.8rem; }
        .article-banner h1 {
            font-size: 2.6rem; font-weight: 800; line-height: 1.25;
            max-width: 800px; color: var(--text-dark);
            margin-bottom: 16px;
        }
        .article-banner .desc {
            font-size: 1.1rem; color: var(--text-muted);
            max-width: 680px; line-height: 1.7;
        }

        /* ===== Article Body ===== */
        .article-section {
            padding: 60px 0 80px;
        }
        .article-layout {
            display: grid; grid-template-columns: 1fr 320px; gap: 48px;
        }
        .article-body {
            background: var(--bg-white); border-radius: var(--radius-md);
            padding: 48px; box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }
        .article-body .featured-image {
            width: 100%; border-radius: var(--radius-sm); margin-bottom: 32px;
            max-height: 480px; object-fit: cover;
        }
        .article-body .content {
            font-size: 1.05rem; line-height: 1.9; color: var(--text-dark);
        }
        .article-body .content p { margin-bottom: 1.4rem; color: var(--text-dark); }
        .article-body .content h2 { font-size: 1.6rem; margin-top: 2rem; margin-bottom: 1rem; }
        .article-body .content h3 { font-size: 1.25rem; margin-top: 1.6rem; margin-bottom: 0.8rem; }
        .article-body .content ul, .article-body .content ol {
            margin: 1rem 0 1.4rem 1.6rem; list-style: disc;
        }
        .article-body .content ul li, .article-body .content ol li {
            margin-bottom: 0.4rem; color: var(--text-dark);
        }
        .article-body .content blockquote {
            border-left: 4px solid var(--primary); padding: 16px 24px;
            background: rgba(232,83,58,0.04); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.4rem 0; font-style: italic;
        }
        .article-body .content img { border-radius: var(--radius-sm); margin: 1.6rem 0; }
        .article-body .content a { color: var(--primary); text-decoration: underline; }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex; flex-direction: column; gap: 32px;
        }
        .sidebar-card {
            background: var(--bg-white); border-radius: var(--radius-md);
            padding: 28px; box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }
        .sidebar-card h3 {
            font-size: 1.1rem; font-weight: 700; margin-bottom: 16px;
            display: flex; align-items: center; gap: 8px;
        }
        .sidebar-card h3 i { color: var(--primary); }
        .sidebar-list { display: flex; flex-direction: column; gap: 12px; }
        .sidebar-list a {
            display: flex; align-items: flex-start; gap: 12px;
            padding: 12px; border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .sidebar-list a:hover { background: rgba(232,83,58,0.04); }
        .sidebar-list a img {
            width: 64px; height: 48px; object-fit: cover; border-radius: 6px; flex-shrink: 0;
        }
        .sidebar-list a .info { flex: 1; min-width: 0; }
        .sidebar-list a .info .title {
            font-size: 0.88rem; font-weight: 600; color: var(--text-dark);
            display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
        }
        .sidebar-list a .info .date {
            font-size: 0.78rem; color: var(--text-light); margin-top: 4px;
        }
        .sidebar-tags {
            display: flex; flex-wrap: wrap; gap: 8px;
        }
        .sidebar-tags a {
            padding: 4px 14px; border-radius: 50px;
            font-size: 0.8rem; font-weight: 500;
            background: rgba(232,83,58,0.06); color: var(--text-muted);
            transition: all var(--transition);
        }
        .sidebar-tags a:hover { background: var(--primary); color: #fff; }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: #fff; border: none;
        }
        .sidebar-cta h3 { color: #fff; }
        .sidebar-cta h3 i { color: #fff; }
        .sidebar-cta p { color: rgba(255,255,255,0.85); font-size: 0.92rem; margin-bottom: 20px; }
        .sidebar-cta .btn {
            background: #fff; color: var(--primary); border-color: #fff;
            width: 100%;
        }
        .sidebar-cta .btn:hover { background: rgba(255,255,255,0.9); transform: translateY(-2px); }

        /* ===== Related Articles ===== */
        .related-section {
            padding: 60px 0; background: var(--bg-white);
            border-top: 1px solid var(--border);
        }
        .related-section h2 {
            text-align: center; margin-bottom: 40px;
            font-size: 1.8rem;
        }
        .related-grid {
            display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
        }
        .related-card {
            border-radius: var(--radius-md); overflow: hidden;
            background: var(--bg-card); border: 1px solid var(--border);
            transition: all var(--transition); box-shadow: var(--shadow-sm);
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .related-card img {
            width: 100%; height: 180px; object-fit: cover;
        }
        .related-card .body { padding: 20px; }
        .related-card .body .tag {
            display: inline-block; padding: 2px 10px; border-radius: 50px;
            font-size: 0.75rem; font-weight: 600;
            background: rgba(232,83,58,0.08); color: var(--primary);
            margin-bottom: 8px;
        }
        .related-card .body h3 { font-size: 1rem; font-weight: 600; }
        .related-card .body h3 a { color: var(--text-dark); }
        .related-card .body h3 a:hover { color: var(--primary); }
        .related-card .body .date {
            font-size: 0.8rem; color: var(--text-light); margin-top: 8px;
            display: flex; align-items: center; gap: 4px;
        }

        /* ===== Error State ===== */
        .error-state {
            text-align: center; padding: 80px 20px;
        }
        .error-state i { font-size: 4rem; color: var(--text-light); margin-bottom: 20px; }
        .error-state h2 { font-size: 1.6rem; margin-bottom: 12px; }
        .error-state p { color: var(--text-muted); margin-bottom: 24px; }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark); color: rgba(255,255,255,0.7);
            padding: 60px 0 24px;
        }
        .footer .logo { color: #fff; margin-bottom: 16px; }
        .footer .logo i { color: var(--primary); }
        .footer p { color: rgba(255,255,255,0.6); font-size: 0.92rem; line-height: 1.7; }
        .footer-grid {
            display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr; gap: 40px;
            margin-bottom: 40px;
        }
        .footer-col h4 {
            color: #fff; font-size: 1rem; font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block; color: rgba(255,255,255,0.6);
            font-size: 0.9rem; padding: 4px 0;
            transition: color var(--transition);
        }
        .footer-col a:hover { color: var(--primary); }
        .footer-col a i { width: 20px; text-align: center; margin-right: 6px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 20px; margin-top: 8px;
            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(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--primary); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; gap: 32px; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media (max-width: 768px) {
            .header-inner { padding: 0 16px; }
            .nav { display: none; position: absolute; top: var(--header-height); left: 0; right: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(16px); flex-direction: column; padding: 16px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-md); }
            .nav.open { display: flex; }
            .nav a { padding: 12px 16px; width: 100%; }
            .nav .nav-cta { margin-left: 0; margin-top: 4px; width: 100%; text-align: center; }
            .nav-toggle { display: block; }
            .article-banner { padding: calc(var(--header-height) + 40px) 0 40px; }
            .article-banner h1 { font-size: 1.8rem; }
            .article-banner .desc { font-size: 1rem; }
            .article-body { padding: 24px; }
            .article-body .content { font-size: 1rem; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .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 12px; }
            .article-banner h1 { font-size: 1.5rem; }
            .article-body { padding: 16px; }
            .article-meta { gap: 12px; }
            .sidebar-card { padding: 20px; }
            .btn { padding: 10px 20px; font-size: 0.88rem; }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #e74c3c;
            --primary-light: #f1948a;
            --primary-dark: #c0392b;
            --secondary: #2ecc71;
            --secondary-light: #82e0aa;
            --accent: #f39c12;
            --bg: #fafafa;
            --bg-alt: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #1a1a2e;
            --text: #2c3e50;
            --text-light: #7f8c8d;
            --text-white: #ffffff;
            --border: #ecf0f1;
            --border-light: #f0f0f0;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.10);
            --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.04);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --container: 1200px;
            --nav-height: 72px;
            --spacer: 80px;
            --spacer-md: 60px;
            --spacer-sm: 40px;
        }

        /* ===== 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);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        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;
            border: none;
            outline: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            color: var(--text);
            font-weight: 700;
        }

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

        /* ===== Header / Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .logo i {
            font-size: 28px;
            color: var(--primary);
        }
        .logo:hover {
            color: var(--primary-dark);
        }
        .nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: background var(--transition), color var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .nav a i {
            font-size: 16px;
            opacity: 0.7;
        }
        .nav a:hover {
            background: rgba(231, 76, 60, 0.06);
            color: var(--primary);
        }
        .nav a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(231, 76, 60, 0.25);
        }
        .nav a.active i {
            opacity: 1;
        }
        .nav-cta {
            background: var(--primary) !important;
            color: #fff !important;
            padding: 8px 22px !important;
            border-radius: 50px !important;
            font-weight: 600 !important;
            box-shadow: 0 4px 14px rgba(231, 76, 60, 0.30);
            transition: transform var(--transition), box-shadow var(--transition) !important;
        }
        .nav-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(231, 76, 60, 0.35) !important;
            background: var(--primary-dark) !important;
        }
        .nav-toggle {
            display: none;
            font-size: 24px;
            color: var(--text);
            padding: 6px 10px;
            border-radius: 8px;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: var(--border);
        }

        /* ===== Mobile Nav ===== */
        @media (max-width: 768px) {
            .nav {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px 28px;
                gap: 6px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: transform 0.35s ease, opacity 0.35s ease;
            }
            .nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav a {
                width: 100%;
                padding: 12px 18px;
                font-size: 17px;
                border-radius: var(--radius-sm);
                justify-content: flex-start;
            }
            .nav a i {
                width: 24px;
                text-align: center;
            }
            .nav-cta {
                margin-top: 8px;
                text-align: center;
                justify-content: center !important;
            }
            .nav-toggle {
                display: block;
            }
        }

        /* ===== Hero / Banner ===== */
        .page-banner {
            margin-top: var(--nav-height);
            padding: 100px 0 80px;
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 60%, #0f3460 100%);
            position: relative;
            overflow: hidden;
            min-height: 340px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.25;
            mix-blend-mode: overlay;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at top right, rgba(231, 76, 60, 0.15), transparent 60%);
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner h1 {
            font-size: 48px;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
        }
        .page-banner h1 i {
            color: var(--primary-light);
            margin-right: 12px;
        }
        .page-banner p {
            font-size: 20px;
            color: rgba(255, 255, 255, 0.80);
            max-width: 640px;
            margin: 0 auto 24px;
            line-height: 1.6;
        }
        .page-banner .banner-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }
        .page-banner .banner-tags span {
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(4px);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.90);
            border: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .page-banner .banner-tags span i {
            color: var(--accent);
            font-size: 13px;
        }

        @media (max-width: 768px) {
            .page-banner {
                padding: 72px 0 56px;
                min-height: 260px;
            }
            .page-banner h1 {
                font-size: 32px;
            }
            .page-banner p {
                font-size: 17px;
            }
            .page-banner .banner-tags span {
                font-size: 13px;
                padding: 5px 14px;
            }
        }
        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 26px;
            }
            .page-banner p {
                font-size: 15px;
            }
        }

        /* ===== Section ===== */
        .section {
            padding: var(--spacer) 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-title {
            font-size: 34px;
            text-align: center;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-sub {
            text-align: center;
            color: var(--text-light);
            font-size: 18px;
            max-width: 600px;
            margin: 0 auto 48px;
            line-height: 1.6;
        }
        .section-sub i {
            color: var(--primary);
            margin: 0 4px;
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--spacer-md) 0;
            }
            .section-title {
                font-size: 26px;
            }
            .section-sub {
                font-size: 16px;
                margin-bottom: 32px;
            }
        }
        @media (max-width: 520px) {
            .section-title {
                font-size: 22px;
            }
            .section-sub {
                font-size: 15px;
                margin-bottom: 24px;
            }
        }

        /* ===== Card Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
            background: #f0f0f0;
        }
        .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body .tag {
            display: inline-block;
            background: rgba(231, 76, 60, 0.08);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 50px;
            margin-bottom: 10px;
            letter-spacing: 0.3px;
            align-self: flex-start;
        }
        .card-body h3 {
            font-size: 20px;
            margin-bottom: 8px;
            line-height: 1.35;
        }
        .card-body h3 a {
            color: var(--text);
        }
        .card-body h3 a:hover {
            color: var(--primary);
        }
        .card-body p {
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
        }
        .card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-light);
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
            margin-top: auto;
        }
        .card-body .card-meta i {
            margin-right: 4px;
            color: var(--primary-light);
        }

        @media (max-width: 992px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }
        @media (max-width: 600px) {
            .card-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .card-body {
                padding: 16px 18px 20px;
            }
            .card-body h3 {
                font-size: 18px;
            }
        }

        /* ===== Feature Row ===== */
        .feature-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .feature-image {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            background: #e8e8e8;
        }
        .feature-image img {
            width: 100%;
            height: 400px;
            object-fit: cover;
            display: block;
            transition: transform var(--transition);
        }
        .feature-image:hover img {
            transform: scale(1.02);
        }
        .feature-content h2 {
            font-size: 32px;
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }
        .feature-content p {
            font-size: 17px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .feature-content .feature-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .feature-content .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 16px;
            color: var(--text);
        }
        .feature-content .feature-list li i {
            color: var(--secondary);
            font-size: 18px;
            margin-top: 3px;
            flex-shrink: 0;
        }

        @media (max-width: 900px) {
            .feature-row {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .feature-image img {
                height: 260px;
            }
            .feature-content h2 {
                font-size: 26px;
            }
        }
        @media (max-width: 520px) {
            .feature-content h2 {
                font-size: 22px;
            }
            .feature-content p {
                font-size: 15px;
            }
            .feature-image img {
                height: 200px;
            }
        }

        /* ===== Stats Block ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 16px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .stat-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow);
        }
        .stat-item .num {
            font-size: 40px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .num i {
            font-size: 32px;
            margin-right: 6px;
            color: var(--primary-light);
        }
        .stat-item .label {
            font-size: 15px;
            color: var(--text-light);
            margin-top: 8px;
        }

        @media (max-width: 900px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-item .num {
                font-size: 30px;
            }
        }

        /* ===== Tags / Badges ===== */
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }
        .tag-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 50px;
            padding: 8px 22px;
            font-size: 15px;
            color: var(--text);
            transition: background var(--transition), color var(--transition), border-color var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: var(--shadow-card);
        }
        .tag-item i {
            color: var(--primary);
            font-size: 14px;
        }
        .tag-item:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .tag-item:hover i {
            color: #fff;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            padding: 18px 22px;
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            cursor: pointer;
            transition: background var(--transition);
            background: transparent;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            background: rgba(231, 76, 60, 0.03);
        }
        .faq-question i {
            color: var(--primary);
            font-size: 18px;
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-question.open i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 22px 18px;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }
        .faq-answer p {
            margin-bottom: 8px;
        }
        .faq-answer p:last-child {
            margin-bottom: 0;
        }

        @media (max-width: 600px) {
            .faq-question {
                font-size: 15px;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px 14px;
                font-size: 14px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 72px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 38px;
            color: #fff;
            margin-bottom: 14px;
            text-shadow: 0 2px 16px rgba(0, 0, 0, 0.10);
        }
        .cta-section p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 520px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
        }
        .cta-section .btn {
            padding: 14px 36px;
            border-radius: 50px;
            font-size: 17px;
            font-weight: 600;
            transition: transform var(--transition), box-shadow var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .cta-section .btn-primary {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.10);
        }
        .cta-section .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
            color: var(--primary-dark);
        }
        .cta-section .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.40);
        }
        .cta-section .btn-outline:hover {
            background: rgba(255, 255, 255, 0.10);
            border-color: rgba(255, 255, 255, 0.70);
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 52px 0;
            }
            .cta-section h2 {
                font-size: 28px;
            }
            .cta-section p {
                font-size: 16px;
            }
            .cta-section .btn {
                padding: 12px 28px;
                font-size: 15px;
            }
        }
        @media (max-width: 520px) {
            .cta-section h2 {
                font-size: 24px;
            }
            .cta-section .btn {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== Button General ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 600;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            text-decoration: none;
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(231, 76, 60, 0.25);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(231, 76, 60, 0.30);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 0;
        }
        .footer .container {
            padding: 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-brand .logo {
            font-size: 22px;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand .logo i {
            color: var(--primary-light);
        }
        .footer-brand p {
            font-size: 15px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 16px;
            color: #fff;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            padding: 5px 0;
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary-light);
        }
        .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;
            flex-wrap: wrap;
            gap: 12px;
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.40);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.50);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }

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

        /* ===== Breadcrumb (内页) ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-light);
            padding: 20px 0 0;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--text);
        }
        .breadcrumb i {
            font-size: 12px;
            color: var(--border);
        }

        /* ===== Scroll Top ===== */
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 20px rgba(231, 76, 60, 0.30);
            z-index: 999;
            opacity: 0;
            transform: translateY(20px);
            pointer-events: none;
            transition: opacity var(--transition), transform var(--transition);
            border: none;
            cursor: pointer;
        }
        .scroll-top.visible {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }
        .scroll-top:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
        }

        /* ===== Utility ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .gap-12 {
            gap: 12px;
        }
        .flex-center {
            display: flex;
            justify-content: center;
            align-items: center;
        }

        /* ===== Responsive fine-tune ===== */
        @media (max-width: 480px) {
            .container {
                padding: 0 16px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .section {
                padding: 40px 0;
            }
            .page-banner {
                padding: 60px 0 44px;
                min-height: 220px;
            }
        }