/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #F97316;
            --primary-dark: #EA580C;
            --secondary: #1E293B;
            --accent: #FBBF24;
            --success: #10B981;
            --warning: #F59E0B;
            --error: #EF4444;
            --bg-body: #FDFBF7;
            --bg-card: #FFFFFF;
            --bg-soft: #FFF7ED;
            --bg-dark: #1E293B;
            --text-main: #111827;
            --text-muted: #6B7280;
            --text-light: #FFFFFF;
            --text-light-muted: #E5E7EB;
            --border: #E5E7EB;
            --radius-lg: 20px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(17,24,39,0.04);
            --shadow-md: 0 8px 24px rgba(249,115,22,0.10);
            --shadow-lg: 0 16px 48px rgba(17,24,39,0.12);
            --gradient-primary: linear-gradient(135deg, #F97316 0%, #FBBF24 100%);
            --transition: 0.25s ease;
            --container-max: 1200px;
            --container-padding: 24px;
            --section-gap: 96px;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

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

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

        ul {
            list-style: none;
        }

        .container {
            max-width: var(--container-max);
            padding-left: var(--container-padding);
            padding-right: var(--container-padding);
            margin-left: auto;
            margin-right: auto;
            width: 100%;
        }

        .section {
            padding: var(--section-gap) 0;
        }

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

        .section-header h2 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.01em;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .section-header .section-sub {
            color: var(--text-muted);
            font-size: 16px;
            max-width: 680px;
            margin: 0 auto;
        }

        /* ===== 导航 ===== */
        .main-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            height: 64px;
            background: transparent;
            transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
            border-bottom: 1px solid transparent;
        }

        .main-header.scrolled {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid #F3F4F6;
            box-shadow: var(--shadow-lg);
        }

        .main-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container-max);
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--gradient-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 12px rgba(249, 115, 22, 0.35);
        }

        .brand-logo .brand-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.2;
            display: flex;
            flex-direction: column;
        }

        .brand-logo .brand-sub {
            font-size: 11px;
            font-weight: 500;
            color: var(--primary);
            letter-spacing: 0.04em;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: 24px;
        }

        .main-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            padding: 8px 16px;
            border-radius: 8px;
            position: relative;
            transition: background var(--transition), color var(--transition);
        }

        .main-nav .nav-link:hover {
            background: var(--bg-soft);
            color: var(--primary);
        }

        .main-nav .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        .main-nav .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 0 14px;
            height: 40px;
            width: 200px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 2px rgba(249, 115, 22, 0.2);
        }

        .search-box input {
            flex: 1;
            border: none;
            background: transparent;
            font-size: 14px;
            color: var(--text-main);
        }

        .search-box input::placeholder {
            color: var(--text-muted);
        }

        .search-box i {
            color: var(--text-muted);
            font-size: 14px;
            margin-left: 8px;
        }

        .btn-nav {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
            border-radius: 999px;
            background: var(--gradient-primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: filter var(--transition), transform var(--transition), box-shadow var(--transition);
        }

        .btn-nav:hover {
            filter: brightness(1.05);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            color: #fff;
        }

        .btn-nav:active {
            transform: translateY(0);
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            color: var(--text-main);
            font-size: 18px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
        }

        /* 移动端菜单 */
        .mobile-menu {
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: var(--secondary);
            z-index: 999;
            padding: 24px;
            display: none;
            border-radius: 0 0 20px 20px;
            box-shadow: var(--shadow-lg);
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-menu .mobile-search {
            width: 100%;
            padding: 12px 16px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 14px;
            margin-bottom: 16px;
        }

        .mobile-menu .mobile-search::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }

        .mobile-menu .mobile-nav-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .mobile-menu .mobile-nav-links a {
            color: #fff;
            font-size: 18px;
            line-height: 24px;
            padding: 12px 8px;
            border-radius: 8px;
            transition: background var(--transition);
        }

        .mobile-menu .mobile-nav-links a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: var(--accent);
        }

        /* ===== Hero ===== */
        .hero {
            min-height: 90vh;
            background: linear-gradient(135deg, #FFF7ED 0%, #FDFBF7 60%, #FDFBF7 100%);
            display: flex;
            align-items: center;
            padding: 100px 0 60px;
            position: relative;
            overflow: hidden;
        }

        .hero::after {
            content: "";
            position: absolute;
            bottom: -120px;
            left: 0;
            right: 0;
            height: 240px;
            background: radial-gradient(ellipse at 50% 100%, rgba(249, 115, 22, 0.25) 0%, transparent 60%);
            pointer-events: none;
        }

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

        .hero-inner {
            display: flex;
            align-items: center;
            gap: 48px;
        }

        .hero-content {
            flex: 0 0 60%;
            max-width: 60%;
        }

        .hero-content h1 {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .hero-content h1 span {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-sub {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 520px;
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            margin-bottom: 36px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            border-radius: 999px;
            background: var(--gradient-primary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: filter var(--transition), transform var(--transition), box-shadow var(--transition);
            text-decoration: none;
        }

        .btn-primary:hover {
            filter: brightness(1.05);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            border-radius: 999px;
            background: #fff;
            border: 2px solid var(--border);
            color: var(--text-main);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
        }

        .btn-outline:hover {
            background: var(--bg-soft);
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }

        .btn-outline:active {
            transform: translateY(0);
        }

        .hero-points {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 28px;
        }

        .hero-points li {
            display: flex;
            align-items: center;
            gap: 6px;
            color: var(--text-main);
            font-size: 14px;
            font-weight: 500;
        }

        .hero-points li i {
            color: var(--primary);
            font-size: 16px;
        }

        .hero-visual {
            flex: 0 0 40%;
            max-width: 40%;
            position: relative;
        }

        .hero-image-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            background: var(--bg-soft);
        }

        .hero-image-wrap img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .hero-image-wrap:hover img {
            transform: scale(1.02);
        }

        .hero-card {
            position: absolute;
            bottom: 24px;
            left: 24px;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            padding: 16px 20px;
            border-radius: 16px;
            box-shadow: var(--shadow-md);
        }

        .hero-card-label {
            font-size: 12px;
            color: var(--primary);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .hero-card p {
            font-size: 14px;
            color: var(--text-main);
            font-weight: 600;
            margin-top: 4px;
            line-height: 1.5;
        }

        .hero-badge {
            position: absolute;
            top: 24px;
            right: -16px;
            background: var(--secondary);
            padding: 16px 24px;
            border-radius: 20px;
            text-align: center;
            box-shadow: var(--shadow-lg);
            transform: rotate(-6deg);
        }

        .hero-badge .badge-num {
            font-size: 44px;
            font-weight: 800;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: block;
            line-height: 1.2;
        }

        .hero-badge .badge-label {
            font-size: 13px;
            color: var(--text-light-muted);
        }

        /* ===== 服务板块 ===== */
        .services {
            background: var(--bg-body);
        }

        .service-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 32px;
            height: 100%;
            border: 1px solid transparent;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }

        .service-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(249, 115, 22, 0.3);
        }

        .service-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: var(--bg-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .service-icon svg {
            width: 24px;
            height: 24px;
            stroke: var(--primary);
            fill: none;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .service-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 16px;
            min-height: 60px;
        }

        .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: letter-spacing var(--transition);
        }

        .card-link:hover {
            letter-spacing: 0.02em;
            color: var(--primary-dark);
        }

        /* ===== 优势数据 ===== */
        .stats {
            background: var(--bg-dark);
            color: var(--text-light);
        }

        .stats .section-header h2 {
            color: var(--text-light);
        }

        .stats .section-header .section-sub {
            color: rgba(255, 255, 255, 0.7);
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .stat-card .stat-num {
            font-size: 64px;
            font-weight: 800;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
            display: block;
        }

        .stat-card .stat-label {
            font-size: 14px;
            color: var(--text-light-muted);
            margin-top: 8px;
            display: block;
        }

        .stat-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--success);
            margin-right: 6px;
            vertical-align: middle;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.5; }
        }

        /* ===== 案例板块 ===== */
        .cases {
            background: var(--bg-body);
        }

        .case-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
            display: block;
            height: 100%;
        }

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

        .case-card .case-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
        }

        .case-card .case-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .case-card:hover .case-image img {
            transform: scale(1.03);
        }

        .case-body {
            padding: 24px;
        }

        .case-tag {
            display: inline-block;
            background: var(--bg-soft);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 12px;
        }

        .case-body h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .case-body p {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .case-stats-row {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .case-stat {
            background: var(--bg-soft);
            border-radius: var(--radius-md);
            padding: 8px 16px;
            text-align: center;
        }

        .case-stat .cs-num {
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            display: block;
        }

        .case-stat .cs-label {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ===== 方案板块 ===== */
        .solution {
            background: var(--bg-soft);
        }

        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            text-align: center;
            position: relative;
            height: 100%;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
        }

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

        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: var(--bg-soft);
            color: var(--primary);
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 24px;
            box-shadow: 0 0 0 8px rgba(249, 115, 22, 0.08);
        }

        .step-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .step-card p {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
        }

        .solution-steps .col-lg-4 {
            position: relative;
        }

        .solution-steps .col-lg-4:not(:last-child)::after {
            content: "";
            position: absolute;
            top: 50%;
            right: -12px;
            width: 24px;
            height: 2px;
            background: repeating-linear-gradient(90deg, var(--primary) 0 4px, transparent 4px 8px);
            transform: translateY(-50%);
            opacity: 0.5;
        }

        /* ===== 资讯列表 ===== */
        .news {
            background: var(--bg-body);
        }

        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
            margin-bottom: 24px;
        }

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

        .news-card-link {
            display: flex;
            text-decoration: none;
            color: inherit;
        }

        .news-thumb {
            flex: 0 0 220px;
            width: 220px;
            min-height: 150px;
            overflow: hidden;
            background: var(--bg-soft);
        }

        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .news-card:hover .news-thumb img {
            transform: scale(1.03);
        }

        .news-body {
            flex: 1;
            padding: 24px 28px;
            display: flex;
            flex-direction: column;
        }

        .news-cat {
            display: inline-block;
            align-self: flex-start;
            background: var(--bg-soft);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 10px;
        }

        .news-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.5;
        }

        .news-excerpt {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }

        .news-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: auto;
        }

        .news-meta span {
            font-size: 12px;
            color: var(--text-muted);
        }

        .news-meta i {
            margin-right: 4px;
        }

        .news-more {
            font-weight: 600;
            color: var(--primary) !important;
        }

        .news-empty {
            background: var(--bg-card);
            border: 2px dashed var(--border);
            border-radius: var(--radius-lg);
            padding: 60px;
            text-align: center;
        }

        .news-empty .empty-icon {
            font-size: 48px;
            color: var(--border);
            margin-bottom: 16px;
        }

        .news-empty p {
            color: var(--text-muted);
            font-size: 16px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-soft);
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            margin-bottom: 16px;
            border: 1px solid transparent;
            box-shadow: var(--shadow-sm);
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .faq-item.active {
            border-color: rgba(249, 115, 22, 0.3);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 24px 28px;
            cursor: pointer;
            border-radius: var(--radius-lg);
            background: transparent;
            width: 100%;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--bg-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 14px;
            transition: transform var(--transition);
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-answer-inner {
            padding: 0 28px 24px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .contact-cta {
            background: var(--gradient-primary);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .contact-cta::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
        }

        .contact-cta::after {
            content: "";
            position: absolute;
            bottom: -80px;
            left: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
        }

        .contact-cta .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .contact-cta h2 {
            color: #fff;
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .contact-cta p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 16px;
            max-width: 600px;
            margin: 0 auto 32px;
        }

        .btn-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 16px 40px;
            border-radius: 999px;
            background: #fff;
            color: var(--primary-dark);
            font-size: 16px;
            font-weight: 700;
            border: none;
            cursor: pointer;
            transition: transform var(--transition), box-shadow var(--transition);
            text-decoration: none;
        }

        .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
            color: var(--primary-dark);
        }

        .contact-cta .cta-meta {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 32px;
            flex-wrap: wrap;
        }

        .cta-meta a {
            color: #fff;
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            opacity: 0.9;
            transition: opacity var(--transition);
        }

        .cta-meta a:hover {
            opacity: 1;
            color: #fff;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--secondary);
            color: var(--text-light-muted);
            padding: 60px 0 0;
            border-top: 4px solid;
            border-image: var(--gradient-primary) 1;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand .brand-text {
            color: #fff;
            font-size: 22px;
            font-weight: 800;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }

        .footer-brand .brand-text i {
            color: var(--accent);
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-light-muted);
            line-height: 1.7;
            max-width: 260px;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 16px;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: var(--text-light-muted);
            font-size: 14px;
            transition: color var(--transition);
        }

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

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
            font-size: 14px;
        }

        .footer-contact li i {
            color: var(--primary);
            width: 16px;
        }

        .footer-contact a {
            color: var(--text-light-muted);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom span {
            color: var(--text-light-muted);
        }

        /* ===== 其他组件 ===== */
        .section-divider {
            height: 1px;
            background: linear-gradient(to right, transparent, var(--border), transparent);
            max-width: 900px;
            margin: 0 auto;
        }

        .back-to-top {
            position: fixed;
            bottom: 40px;
            right: 40px;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--gradient-primary);
            color: #fff;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            z-index: 99;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.3s ease;
            border: none;
            box-shadow: var(--shadow-md);
        }

        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .back-to-top:hover {
            filter: brightness(1.1);
            transform: translateY(-2px);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1199px) {
            .search-box {
                width: 160px;
            }
        }

        @media (max-width: 991px) {
            .main-nav {
                display: none;
            }

            .nav-actions .search-box {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .hero-inner {
                flex-direction: column;
                gap: 48px;
            }

            .hero-content,
            .hero-visual {
                flex: 0 0 100%;
                max-width: 100%;
            }

            .hero-content {
                text-align: center;
            }

            .hero-sub {
                margin-left: auto;
                margin-right: auto;
            }

            .hero-actions {
                justify-content: center;
            }

            .hero-points {
                justify-content: center;
            }

            .hero-image-wrap img {
                height: 360px;
            }

            .solution-steps .col-lg-4:not(:last-child)::after {
                display: none;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }

            .news-card-link {
                flex-direction: column;
            }

            .news-thumb {
                flex: 0 0 auto;
                width: 100%;
                min-height: 200px;
                aspect-ratio: 16/9;
            }
        }

        @media (max-width: 767px) {
            :root {
                --section-gap: 56px;
                --container-padding: 16px;
            }

            .section-header h2 {
                font-size: 28px;
            }

            .hero-content h1 {
                font-size: 34px;
            }

            .hero {
                padding: 80px 0 40px;
                min-height: auto;
            }

            .hero-visual {
                display: block;
            }

            .hero-image-wrap img {
                height: 260px;
            }

            .hero-card {
                bottom: 16px;
                left: 16px;
                padding: 12px 16px;
            }

            .hero-badge {
                top: 16px;
                right: -8px;
                padding: 12px 18px;
            }

            .hero-badge .badge-num {
                font-size: 32px;
            }

            .stat-card .stat-num {
                font-size: 44px;
            }

            .service-card,
            .step-card {
                padding: 24px;
            }

            .case-body {
                padding: 20px;
            }

            .news-body {
                padding: 20px;
            }

            .faq-question {
                padding: 18px 20px;
                font-size: 15px;
            }

            .faq-answer-inner {
                padding: 0 20px 20px;
            }

            .btn-primary,
            .btn-outline {
                padding: 12px 24px;
            }

            .contact-cta {
                padding: 56px 0;
            }

            .contact-cta h2 {
                font-size: 26px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }

            .back-to-top {
                bottom: 20px;
                right: 20px;
            }
        }

        @media (max-width: 520px) {
            .brand-logo .brand-text {
                font-size: 18px;
            }

            .hero-content h1 {
                font-size: 28px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: center;
            }

            .hero-points {
                gap: 8px 16px;
            }

            .footer-grid {
                gap: 24px;
            }

            .stat-card {
                padding: 24px 16px;
            }
        }

/* roulang page: article */
:root {
            --color-primary: #F97316;
            --color-primary-dark: #EA580C;
            --color-secondary: #1E293B;
            --color-accent: #FBBF24;
            --color-bg: #FDFBF7;
            --color-card: #FFFFFF;
            --color-section-light: #FFF7ED;
            --color-text: #111827;
            --color-text-muted: #6B7280;
            --color-border: #E5E7EB;
            --color-success: #10B981;
            --color-warning: #F59E0B;
            --color-danger: #EF4444;
            --gradient-primary: linear-gradient(135deg, #F97316 0%, #FBBF24 100%);
            --radius-lg: 20px;
            --radius-md: 12px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(17, 24, 39, 0.04);
            --shadow-md: 0 8px 24px rgba(249, 115, 22, 0.10);
            --shadow-lg: 0 16px 48px rgba(17, 24, 39, 0.12);
            --transition: 0.25s ease;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --container-width: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
        }

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

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

        .main-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            height: 64px;
            background: rgba(253, 251, 247, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(243, 244, 246, 0.9);
            transition: box-shadow var(--transition), background var(--transition);
        }

        .main-header.scrolled {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: var(--shadow-lg);
            border-bottom-color: #F3F4F6;
        }

        .main-header .container {
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            max-width: 220px;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--gradient-primary);
            border-radius: 10px;
            color: #fff;
            box-shadow: 0 4px 12px rgba(249, 115, 22, 0.25);
            flex-shrink: 0;
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.1;
            color: var(--color-secondary);
            font-weight: 700;
            font-size: 18px;
            letter-spacing: -0.01em;
        }

        .brand-sub {
            font-size: 11px;
            font-weight: 500;
            color: var(--color-primary);
            letter-spacing: 0.02em;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 2px;
        }

        .nav-link {
            display: block;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            border-radius: var(--radius-pill);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--color-primary);
            background: var(--color-section-light);
        }

        .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            background: var(--gradient-primary);
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .search-box {
            position: relative;
            width: 180px;
        }

        .search-box input {
            width: 100%;
            height: 38px;
            padding: 0 38px 0 14px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            font-size: 14px;
            background: #fff;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .search-box input:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.18);
        }

        .search-box svg {
            position: absolute;
            right: 12px;
            top: 50%;
            transform: translateY(-50%);
            width: 16px;
            height: 16px;
            color: var(--color-text-muted);
            pointer-events: none;
        }

        .btn-nav {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 20px;
            background: var(--gradient-primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            transition: all var(--transition);
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(249, 115, 22, 0.2);
        }

        .btn-nav:hover {
            filter: brightness(1.05);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(249, 115, 22, 0.3);
            color: #fff;
        }

        .btn-nav:active {
            transform: translateY(1px);
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-md);
            transition: background var(--transition);
            cursor: pointer;
        }

        .nav-toggle:hover {
            background: var(--color-section-light);
        }

        .nav-toggle svg {
            width: 22px;
            height: 22px;
            color: var(--color-text);
        }

        .breadcrumb-bar {
            padding: 16px 0;
            background: #FDFBF7;
            border-bottom: 1px solid #F3F4F6;
        }

        .breadcrumb-bar .container {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--color-text-muted);
            gap: 0;
        }

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

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

        .breadcrumb-bar .sep {
            margin: 0 8px;
            color: #D1D5DB;
            font-size: 14px;
        }

        .breadcrumb-bar .current {
            color: var(--color-text);
            font-weight: 500;
            max-width: 300px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            display: inline-block;
            vertical-align: bottom;
        }

        .article-section {
            padding: 48px 0 24px;
        }

        .article-header {
            max-width: 760px;
            margin: 0 auto;
            padding: 0 0 20px;
        }

        .article-header .pill {
            display: inline-block;
            padding: 4px 14px;
            background: var(--color-section-light);
            color: var(--color-primary);
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .article-header h1 {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--color-secondary);
            margin-bottom: 20px;
        }

        .article-meta {
            display: flex;
            gap: 18px;
            font-size: 13px;
            color: var(--color-text-muted);
            flex-wrap: wrap;
            align-items: center;
        }

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

        .article-meta svg {
            width: 15px;
            height: 15px;
            color: #B0B7C3;
        }

        .article-summary {
            max-width: 760px;
            margin: 0 auto 32px;
            padding: 20px 24px;
            background: var(--color-section-light);
            border-left: 4px solid var(--color-primary);
            border-radius: var(--radius-md);
            font-size: 14px;
            color: #4B5563;
            line-height: 1.7;
        }

        .article-body-wrap {
            max-width: 760px;
            margin: 0 auto;
        }

        .article-body {
            font-size: 16px;
            line-height: 1.8;
            color: #1F2937;
        }

        .article-body p {
            margin-bottom: 24px;
        }

        .article-body h2 {
            font-size: 28px;
            font-weight: 700;
            margin: 48px 0 16px;
            color: var(--color-secondary);
            letter-spacing: -0.01em;
        }

        .article-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin: 32px 0 12px;
            color: var(--color-secondary);
        }

        .article-body blockquote {
            padding: 16px 20px;
            background: var(--color-section-light);
            border-left: 4px solid var(--color-primary);
            border-radius: var(--radius-md);
            margin: 24px 0;
            color: #4B5563;
            font-size: 15px;
        }

        .article-body img {
            border-radius: 16px;
            margin: 28px 0;
            width: 100%;
            object-fit: cover;
        }

        .article-body ul,
        .article-body ol {
            padding-left: 24px;
            margin-bottom: 24px;
        }

        .article-body li {
            margin-bottom: 8px;
        }

        .article-body a {
            color: var(--color-primary);
            text-decoration: underline;
            text-underline-offset: 3px;
            transition: opacity var(--transition);
        }

        .article-body a:hover {
            opacity: 0.8;
        }

        .article-body code {
            background: var(--color-secondary);
            color: #E5E7EB;
            padding: 3px 8px;
            border-radius: 6px;
            font-size: 14px;
            font-family: "SFMono-Regular", Consolas, monospace;
        }

        .article-body pre {
            background: var(--color-secondary);
            color: #E5E7EB;
            padding: 24px;
            border-radius: var(--radius-md);
            margin: 24px 0;
            overflow-x: auto;
            font-size: 14px;
            line-height: 1.7;
        }

        .article-body pre code {
            background: none;
            padding: 0;
            color: inherit;
        }

        .content-cta {
            max-width: 760px;
            margin: 40px auto;
            padding: 32px 36px;
            background: var(--color-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            border: 1px solid rgba(249, 115, 22, 0.12);
            flex-wrap: wrap;
        }

        .content-cta h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--color-secondary);
            margin-bottom: 4px;
        }

        .content-cta p {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            background: var(--gradient-primary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            box-shadow: 0 4px 16px rgba(249, 115, 22, 0.2);
            transition: all var(--transition);
            white-space: nowrap;
            cursor: pointer;
            border: none;
        }

        .btn-primary:hover {
            filter: brightness(1.06);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(249, 115, 22, 0.3);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(249, 115, 22, 0.2);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
            background: transparent;
            color: var(--color-secondary);
            font-size: 14px;
            font-weight: 600;
            border: 2px solid var(--color-border);
            border-radius: var(--radius-pill);
            transition: all var(--transition);
            cursor: pointer;
        }

        .btn-secondary:hover {
            background: var(--color-section-light);
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .article-tags {
            max-width: 760px;
            margin: 32px auto 0;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-pill {
            padding: 5px 14px;
            background: #F9FAFB;
            color: var(--color-text-muted);
            border-radius: var(--radius-pill);
            font-size: 13px;
            border: 1px solid var(--color-border);
            transition: all var(--transition);
        }

        .tag-pill:hover {
            background: var(--color-section-light);
            color: var(--color-primary);
            border-color: rgba(249, 115, 22, 0.3);
        }

        .related-section {
            padding: 64px 0 16px;
        }

        .related-section .container {
            max-width: 900px;
        }

        .related-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 28px;
        }

        .related-header h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-secondary);
            margin: 0;
        }

        .related-header .related-more {
            font-size: 14px;
            color: var(--color-primary);
            font-weight: 500;
            transition: opacity var(--transition);
        }

        .related-header .related-more:hover {
            opacity: 0.75;
        }

        .related-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .list-card {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 16px;
            display: flex;
            gap: 16px;
            border: 1px solid transparent;
            transition: all var(--transition);
        }

        .list-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: rgba(249, 115, 22, 0.15);
        }

        .list-card .card-thumb {
            width: 120px;
            height: 90px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
        }

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

        .list-card .card-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 4px;
            min-width: 0;
        }

        .list-card .pill {
            font-size: 11px;
            padding: 2px 10px;
            background: var(--color-section-light);
            color: var(--color-primary);
            border-radius: var(--radius-pill);
            font-weight: 600;
            align-self: flex-start;
        }

        .list-card .card-title {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--color-secondary);
            margin: 0;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        .list-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--color-text-muted);
            margin-top: 6px;
        }

        .list-card .read-more {
            color: var(--color-primary);
            font-weight: 600;
            font-size: 12px;
        }

        .article-nav {
            max-width: 760px;
            margin: 48px auto 64px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            border-top: 1px solid var(--color-border);
        }

        .article-nav a {
            font-size: 14px;
            color: var(--color-text-muted);
            transition: color var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

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

        .article-nav .next-link {
            font-weight: 500;
        }

        .not-found-section {
            max-width: 760px;
            margin: 0 auto;
            padding: 60px 40px;
            text-align: center;
            background: var(--color-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 2px dashed var(--color-border);
        }

        .not-found-section h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-secondary);
            margin-bottom: 12px;
        }

        .not-found-section p {
            color: var(--color-text-muted);
            margin-bottom: 24px;
        }

        .site-footer {
            background: var(--color-secondary);
            color: #CBD5E1;
            padding: 64px 0 24px;
            position: relative;
        }

        .site-footer::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--gradient-primary);
        }

        .site-footer .container {
            max-width: 1200px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 48px;
            margin-bottom: 40px;
        }

        .footer-brand .brand-text {
            color: #fff;
            font-size: 20px;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }

        .footer-brand .brand-text svg {
            color: var(--color-primary);
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: #94A3B8;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-links,
        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li,
        .footer-contact li {
            margin-bottom: 10px;
        }

        .footer-links a,
        .footer-contact a {
            color: #94A3B8;
            font-size: 14px;
            transition: color var(--transition);
        }

        .footer-links a:hover,
        .footer-contact a:hover {
            color: var(--color-primary);
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: #94A3B8;
        }

        .footer-contact svg {
            width: 14px;
            height: 14px;
            color: var(--color-accent);
            flex-shrink: 0;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            text-align: center;
            font-size: 13px;
            color: #64748B;
        }

        .footer-bottom span {
            color: #94A3B8;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        @media (max-width: 1199px) {
            .search-box {
                width: 140px;
            }
            .nav-link {
                padding: 8px 10px;
                font-size: 14px;
            }
        }

        @media (max-width: 991px) {
            .main-nav {
                display: none;
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--color-secondary);
                flex-direction: column;
                padding: 20px 24px 28px;
                gap: 4px;
                box-shadow: var(--shadow-lg);
                z-index: 999;
                max-height: calc(100vh - 64px);
                overflow-y: auto;
            }
            .main-nav.open {
                display: flex;
            }
            .nav-link {
                color: #E5E7EB;
                font-size: 18px;
                padding: 14px 12px;
                border-radius: var(--radius-md);
                width: 100%;
                text-align: left;
            }
            .nav-link:hover {
                color: var(--color-primary);
                background: rgba(255, 255, 255, 0.06);
            }
            .nav-link.active {
                color: var(--color-primary);
                background: rgba(249, 115, 22, 0.1);
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .article-header h1 {
                font-size: 40px;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }
            .brand-text {
                font-size: 16px;
            }
            .search-box {
                display: none;
            }
            .btn-nav {
                padding: 8px 14px;
                font-size: 13px;
            }
            .article-header h1 {
                font-size: 34px;
            }
            .article-meta {
                gap: 12px;
                font-size: 12px;
                flex-wrap: wrap;
            }
            .article-summary {
                padding: 16px;
                font-size: 13px;
            }
            .article-body {
                font-size: 15px;
            }
            .content-cta {
                padding: 24px;
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .list-card {
                flex-direction: column;
            }
            .list-card .card-thumb {
                width: 100%;
                height: 0;
                padding-bottom: 56.25%;
                position: relative;
            }
            .list-card .card-thumb img {
                position: absolute;
                inset: 0;
                width: 100%;
                height: 100%;
            }
            .article-nav {
                flex-direction: column;
                gap: 14px;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 520px) {
            .brand-sub {
                font-size: 10px;
            }
            .btn-nav {
                display: none;
            }
            .brand-logo {
                max-width: 170px;
            }
            .article-header h1 {
                font-size: 28px;
            }
        }

/* roulang page: category1 */
/* ========== Design Variables ========== */
        :root {
            --brand-primary: #F97316;
            --brand-primary-dark: #EA580C;
            --brand-secondary: #1E293B;
            --brand-accent: #FBBF24;
            --brand-bg: #FDFBF7;
            --brand-card-bg: #FFFFFF;
            --brand-light-orange: #FFF7ED;
            --brand-success: #10B981;
            --brand-warning: #F59E0B;
            --brand-danger: #EF4444;
            --text-main: #111827;
            --text-sub: #6B7280;
            --text-light: #FFFFFF;
            --text-dark-sub: #E5E7EB;
            --text-deep-sub: #CBD5E1;
            --border-light: #E5E7EB;
            --radius-lg: 20px;
            --radius-md: 12px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(17, 24, 39, 0.04);
            --shadow-md: 0 8px 24px rgba(249, 115, 22, 0.10);
            --shadow-lg: 0 16px 48px rgba(17, 24, 39, 0.12);
            --spacing-section: 96px;
            --spacing-section-mobile: 56px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --transition-base: 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--brand-bg);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.8;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        input {
            font-family: inherit;
        }

        ul,
        ol,
        p,
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            padding: 0;
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
            margin: 0 auto;
        }

        /* ========== Header / Nav ========== */
        .main-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            height: 64px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid #F3F4F6;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-base), background var(--transition-base);
        }

        .main-header.scrolled {
            box-shadow: var(--shadow-lg);
            background: rgba(255, 255, 255, 0.95);
        }

        .main-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 20px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            max-width: 220px;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, #F97316 0%, #FBBF24 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .brand-text .brand-main {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.01em;
        }

        .brand-text .brand-sub {
            font-size: 11px;
            color: var(--brand-primary);
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            padding: 8px 14px;
            border-radius: var(--radius-md);
            position: relative;
            transition: color var(--transition-base), background var(--transition-base);
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--brand-primary);
            background: var(--brand-light-orange);
        }

        .nav-link.active {
            color: var(--brand-primary);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            border-radius: 2px;
            background: var(--brand-primary);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .search-box {
            position: relative;
            width: 180px;
        }

        .search-box input {
            width: 100%;
            height: 38px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 0 36px 0 14px;
            font-size: 14px;
            background: #fff;
            color: var(--text-main);
            outline: none;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .search-box input::placeholder {
            color: #9CA3AF;
        }

        .search-box input:focus {
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 2px rgba(249, 115, 22, 0.2);
        }

        .search-box i {
            position: absolute;
            right: 12px;
            top: 50%;
            transform: translateY(-50%);
            color: #9CA3AF;
            font-size: 14px;
            pointer-events: none;
        }

        .btn-nav {
            background: linear-gradient(135deg, #F97316 0%, #FBBF24 100%);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            padding: 9px 22px;
            border-radius: var(--radius-pill);
            transition: filter var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(249, 115, 22, 0.25);
        }

        .btn-nav:hover {
            filter: brightness(1.05);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            color: #fff;
        }

        .btn-nav:active {
            transform: translateY(0);
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            background: var(--brand-light-orange);
            color: var(--brand-primary);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: background var(--transition-base);
        }

        .nav-toggle:hover {
            background: #FFEDD5;
        }

        /* ========== Breadcrumb ========== */
        .breadcrumb-wrap {
            background: var(--brand-light-orange);
            border-bottom: 1px solid rgba(249, 115, 22, 0.1);
            padding: 14px 0;
        }

        .breadcrumb-list {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-sub);
            flex-wrap: wrap;
        }

        .breadcrumb-list a {
            color: var(--text-sub);
            transition: color var(--transition-base);
        }

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

        .breadcrumb-list .separator {
            color: #D1D5DB;
            font-size: 12px;
        }

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

        /* ========== Category Hero ========== */
        .category-hero {
            position: relative;
            background: linear-gradient(135deg, #FFF7ED 0%, #FDFBF7 70%);
            padding: 72px 0 64px;
            overflow: hidden;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -60px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(249, 115, 22, 0.12) 0%, rgba(251, 191, 36, 0.05) 60%, transparent 70%);
            pointer-events: none;
        }

        .category-hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

        .category-hero-content .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(249, 115, 22, 0.1);
            color: var(--brand-primary-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            margin-bottom: 20px;
        }

        .category-hero-content h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
            color: var(--text-main);
            margin-bottom: 18px;
        }

        .category-hero-content h1 .highlight {
            background: linear-gradient(135deg, #F97316 0%, #FBBF24 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }

        .category-hero-content .hero-desc {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-sub);
            margin-bottom: 28px;
            max-width: 520px;
        }

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

        .hero-actions .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, #F97316 0%, #FBBF24 100%);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            padding: 14px 30px;
            border-radius: var(--radius-pill);
            transition: filter var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
            box-shadow: 0 6px 20px rgba(249, 115, 22, 0.3);
        }

        .hero-actions .btn-primary-custom:hover {
            filter: brightness(1.05);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            color: #fff;
        }

        .hero-actions .btn-primary-custom:active {
            transform: translateY(0);
        }

        .hero-actions .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--text-main);
            font-size: 15px;
            font-weight: 600;
            padding: 14px 26px;
            border-radius: var(--radius-pill);
            border: 2px solid var(--border-light);
            transition: background var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
        }

        .hero-actions .btn-outline-custom:hover {
            background: var(--brand-light-orange);
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            transform: translateY(-2px);
        }

        .category-hero-visual {
            position: relative;
        }

        .category-hero-visual .hero-img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            border-radius: 20px;
            box-shadow: var(--shadow-lg);
        }

        .hero-float-card {
            position: absolute;
            bottom: 24px;
            left: 24px;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(8px);
            padding: 14px 20px;
            border-radius: 16px;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            gap: 12px;
            animation: floatY 4s ease-in-out infinite;
        }

        .hero-float-card .float-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--brand-success);
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
            flex-shrink: 0;
        }

        .hero-float-card .float-text {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.4;
        }

        @keyframes floatY {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-8px);
            }
        }

        /* ========== Category Tabs ========== */
        .category-tabs-section {
            padding: 24px 0 8px;
        }

        .category-tabs-row {
            display: flex;
            gap: 10px;
            overflow-x: auto;
            flex-wrap: nowrap;
            padding: 4px 2px 12px;
            scrollbar-width: thin;
            scrollbar-color: #E5E7EB transparent;
        }

        .category-tabs-row::-webkit-scrollbar {
            height: 4px;
        }

        .category-tabs-row::-webkit-scrollbar-thumb {
            background: #E5E7EB;
            border-radius: 4px;
        }

        .cat-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #F3F4F6;
            color: var(--text-sub);
            font-size: 14px;
            font-weight: 600;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
            transition: background var(--transition-base), color var(--transition-base);
        }

        .cat-tab:hover {
            background: var(--brand-light-orange);
            color: var(--brand-primary);
        }

        .cat-tab.active {
            background: linear-gradient(135deg, #F97316 0%, #FBBF24 100%);
            color: #fff;
            box-shadow: 0 4px 14px rgba(249, 115, 22, 0.25);
        }

        /* ========== Content Cards Grid ========== */
        .section-padding {
            padding: var(--spacing-section) 0;
        }

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

        .section-header h2 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            letter-spacing: -0.01em;
            margin-bottom: 12px;
        }

        .section-header .section-sub {
            font-size: 16px;
            color: var(--text-sub);
            max-width: 640px;
            margin: 0 auto;
        }

        .content-cards-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .content-card {
            background: var(--brand-card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            border: 1px solid transparent;
            height: 100%;
        }

        .content-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(249, 115, 22, 0.25);
        }

        .content-card-media {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background: var(--brand-light-orange);
        }

        .content-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .content-card:hover .content-card-media img {
            transform: scale(1.04);
        }

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

        .pill {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--brand-light-orange);
            color: var(--brand-primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            margin-bottom: 12px;
            align-self: flex-start;
        }

        .content-card-body h3 {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-main);
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .content-card-body p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-sub);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
            flex: 1;
        }

        .content-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid #F3F4F6;
            padding-top: 14px;
        }

        .content-card-meta .date {
            font-size: 12px;
            color: #9CA3AF;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .content-card-meta .read-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--brand-primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition-base);
        }

        .content-card:hover .content-card-meta .read-more {
            gap: 10px;
        }

        .placeholder-card {
            border: 2px dashed #E5E7EB;
            border-radius: var(--radius-lg);
            background: transparent;
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 280px;
            color: #9CA3AF;
            font-size: 15px;
            text-align: center;
        }

        .placeholder-card i {
            font-size: 30px;
            margin-bottom: 12px;
            color: #D1D5DB;
        }

        /* ========== Steps Section ========== */
        .steps-section {
            background: var(--brand-light-orange);
            padding: var(--spacing-section) 0;
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            margin-bottom: 48px;
        }

        .step-card {
            background: var(--brand-card-bg);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            position: relative;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            text-align: left;
        }

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

        .step-num {
            font-size: 56px;
            font-weight: 800;
            line-height: 1;
            background: linear-gradient(135deg, #F97316 0%, #FBBF24 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
            margin-bottom: 18px;
            display: block;
        }

        .step-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .step-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-sub);
        }

        .steps-cta {
            text-align: center;
        }

        /* ========== Features / Stats Section ========== */
        .features-section {
            background: var(--brand-secondary);
            padding: var(--spacing-section) 0;
        }

        .features-section .section-header h2 {
            color: var(--text-light);
        }

        .features-section .section-header .section-sub {
            color: var(--text-dark-sub);
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .feature-badge {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            transition: background var(--transition-base), transform var(--transition-base);
        }

        .feature-badge:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }

        .feature-badge .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: rgba(249, 115, 22, 0.18);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            color: var(--brand-accent);
            font-size: 20px;
        }

        .feature-badge .feat-num {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.2;
            color: var(--brand-accent);
            margin-bottom: 6px;
        }

        .feature-badge .feat-label {
            font-size: 14px;
            color: var(--text-deep-sub);
        }

        .feature-badge .online-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--brand-success);
            margin-right: 6px;
            vertical-align: middle;
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
        }

        /* ========== FAQ Section ========== */
        .faq-section {
            padding: var(--spacing-section) 0;
        }

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: var(--brand-card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            border: 1px solid transparent;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(249, 115, 22, 0.3);
            box-shadow: var(--shadow-md);
        }

        .faq-item.is-active {
            border-color: rgba(249, 115, 22, 0.4);
            box-shadow: var(--shadow-md);
        }

        .faq-item .accordion-header {
            margin: 0;
        }

        .faq-item .accordion-button {
            background: transparent;
            color: var(--text-main);
            font-size: 16px;
            font-weight: 600;
            padding: 22px 24px;
            width: 100%;
            text-align: left;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            border: none;
            outline: none;
            box-shadow: none !important;
            transition: background var(--transition-base), color var(--transition-base);
        }

        .faq-item .accordion-button:hover {
            background: var(--brand-light-orange);
            color: var(--brand-primary);
        }

        .faq-item .accordion-button::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 14px;
            color: var(--brand-primary);
            background: none;
            width: auto;
            height: auto;
            transform: rotate(0deg);
            transition: transform var(--transition-base);
        }

        .faq-item .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
        }

        .faq-item .accordion-button:not(.collapsed) {
            background: var(--brand-light-orange);
            color: var(--brand-primary);
        }

        .faq-item .accordion-collapse {
            transition: all var(--transition-base);
        }

        .faq-item .accordion-body {
            padding: 0 24px 22px;
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-sub);
            background: transparent;
        }

        /* ========== CTA Section ========== */
        .cta-section {
            padding: var(--spacing-section) 0;
            background: linear-gradient(135deg, #F97316 0%, #FBBF24 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -20px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            pointer-events: none;
        }

        .cta-inner {
            text-align: center;
            position: relative;
            z-index: 2;
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            margin-bottom: 14px;
        }

        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.92);
            margin-bottom: 28px;
        }

        .cta-inner .btn-cta-white {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: #fff;
            color: var(--brand-primary-dark);
            font-size: 16px;
            font-weight: 700;
            padding: 16px 38px;
            border-radius: var(--radius-pill);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
            transition: transform var(--transition-base), box-shadow var(--transition-base), filter var(--transition-base);
        }

        .cta-inner .btn-cta-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
            filter: brightness(0.98);
            color: var(--brand-primary-dark);
        }

        .cta-contact-row {
            margin-top: 28px;
            display: flex;
            justify-content: center;
            gap: 28px;
            flex-wrap: wrap;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.9);
        }

        .cta-contact-row a {
            color: #fff;
            border-bottom: 1px solid rgba(255, 255, 255, 0.5);
            transition: border-color var(--transition-base);
        }

        .cta-contact-row a:hover {
            border-color: #fff;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--brand-secondary);
            color: var(--text-dark-sub);
            position: relative;
        }

        .site-footer::before {
            content: "";
            display: block;
            height: 4px;
            background: linear-gradient(90deg, #F97316 0%, #FBBF24 100%);
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding: 56px 0 40px;
        }

        .footer-brand .brand-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .footer-brand .brand-text i {
            color: var(--brand-accent);
            font-size: 22px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-dark-sub);
        }

        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            background: linear-gradient(90deg, #F97316, #FBBF24);
            border-radius: 2px;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: var(--text-dark-sub);
            transition: color var(--transition-base), padding-left var(--transition-base);
        }

        .footer-links a:hover {
            color: var(--brand-accent);
            padding-left: 4px;
        }

        .footer-contact {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-contact li {
            font-size: 14px;
            color: var(--text-dark-sub);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-contact i {
            color: var(--brand-accent);
            width: 16px;
            text-align: center;
        }

        .footer-contact a {
            color: var(--text-dark-sub);
            transition: color var(--transition-base);
        }

        .footer-contact a:hover {
            color: var(--brand-accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: #94A3B8;
        }

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

        .btn-primary-custom:focus-visible,
        .btn-nav:focus-visible,
        .btn-cta-white:focus-visible {
            outline-color: #fff;
        }

        /* ========== Mobile Responsive ========== */
        @media (max-width: 1199px) {
            .category-hero-content h1 {
                font-size: 38px;
            }

            .features-grid {
                gap: 16px;
            }

            .feature-badge .feat-num {
                font-size: 28px;
            }

            .main-header .container {
                gap: 12px;
            }
        }

        @media (max-width: 991px) {
            .main-header .container {
                gap: 10px;
            }

            .main-nav {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-actions .search-box {
                display: none;
            }

            .btn-nav {
                font-size: 13px;
                padding: 8px 16px;
            }

            .category-hero .container {
                grid-template-columns: 1fr;
                gap: 32px;
                text-align: center;
            }

            .category-hero-content .hero-desc {
                margin-left: auto;
                margin-right: auto;
            }

            .hero-actions {
                justify-content: center;
            }

            .category-hero-visual .hero-img {
                height: 280px;
            }

            .steps-grid {
                grid-template-columns: 1fr;
                max-width: 560px;
                margin-left: auto;
                margin-right: auto;
            }

            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

        @media (max-width: 767px) {
            :root {
                --spacing-section: 56px;
            }

            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .brand-logo {
                max-width: 180px;
            }

            .brand-text .brand-main {
                font-size: 16px;
            }

            .main-header {
                height: 58px;
            }

            .category-hero {
                padding: 48px 0 40px;
            }

            .category-hero-content h1 {
                font-size: 34px;
                line-height: 1.3;
            }

            .category-hero-content .hero-tag {
                font-size: 12px;
                padding: 5px 12px;
            }

            .hero-actions .btn-primary-custom,
            .hero-actions .btn-outline-custom {
                font-size: 14px;
                padding: 12px 22px;
            }

            .category-hero-visual .hero-img {
                height: 220px;
                border-radius: 16px;
            }

            .hero-float-card {
                bottom: 12px;
                left: 12px;
                padding: 12px 16px;
            }

            .section-header h2 {
                font-size: 28px;
            }

            .section-header .section-sub {
                font-size: 15px;
            }

            .content-cards-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .content-card-media {
                height: 180px;
            }

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

            .content-card-body h3 {
                font-size: 18px;
            }

            .features-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .feature-badge {
                padding: 24px 16px;
            }

            .faq-item .accordion-button {
                font-size: 15px;
                padding: 18px 18px;
            }

            .faq-item .accordion-body {
                padding: 0 18px 18px;
                font-size: 14px;
            }

            .cta-inner h2 {
                font-size: 28px;
            }

            .cta-inner .btn-cta-white {
                font-size: 15px;
                padding: 14px 30px;
            }

            .cta-contact-row {
                gap: 14px;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                padding: 40px 0 28px;
            }

            .footer-title {
                margin-bottom: 12px;
            }

            .footer-bottom {
                font-size: 12px;
            }

            .breadcrumb-wrap {
                padding: 10px 0;
            }

            .breadcrumb-list {
                font-size: 13px;
            }
        }

        @media (max-width: 520px) {
            .btn-nav {
                display: none;
            }

            .brand-logo {
                max-width: 150px;
            }

            .category-hero-content h1 {
                font-size: 28px;
            }

            .content-card-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .steps-grid {
                gap: 16px;
            }

            .step-card {
                padding: 24px 20px;
            }

            .step-num {
                font-size: 44px;
            }

            .cta-inner p {
                font-size: 15px;
            }
        }

        /* Mobile nav expanded panel */
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: 58px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--brand-secondary);
            padding: 28px 24px;
            z-index: 999;
            overflow-y: auto;
        }

        .mobile-nav-panel.open {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .mobile-nav-panel .mobile-search {
            margin-bottom: 20px;
        }

        .mobile-nav-panel .mobile-search input {
            width: 100%;
            height: 44px;
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.15);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            padding: 0 16px;
            font-size: 15px;
            outline: none;
        }

        .mobile-nav-panel .mobile-search input::placeholder {
            color: #94A3B8;
        }

        .mobile-nav-panel .mobile-search input:focus {
            border-color: var(--brand-primary);
        }

        .mobile-nav-panel a {
            color: #fff;
            font-size: 18px;
            font-weight: 500;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: color var(--transition-base), padding-left var(--transition-base);
        }

        .mobile-nav-panel a:hover,
        .mobile-nav-panel a.active {
            color: var(--brand-accent);
            padding-left: 8px;
        }