/* roulang page: index */
:root {
            --color-primary: #1a1a2e;
            --color-primary-light: #252540;
            --color-accent: #d4a853;
            --color-accent-hover: #c4963f;
            --color-accent-light: #f0e6d0;
            --color-bg: #ffffff;
            --color-bg-alt: #f7f6f3;
            --color-bg-dark: #1a1a2e;
            --color-text: #1a1a2e;
            --color-text-light: #5a5a6e;
            --color-text-muted: #8a8a9a;
            --color-border: #e8e6e1;
            --color-border-light: #f0efeb;
            --color-success: #2d8a4e;
            --color-white: #ffffff;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1240px;
            --header-top-height: 38px;
            --header-main-height: 64px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-width: 320px;
            overflow-x: hidden;
        }

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

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

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

        ul,
        ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header Top Bar */
        .header-top {
            background-color: var(--color-primary);
            color: var(--color-white);
            font-size: 13px;
            height: var(--header-top-height);
            line-height: var(--header-top-height);
            display: flex;
            align-items: center;
        }
        .header-top .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px 16px;
        }
        .header-top-left {
            display: flex;
            align-items: center;
            gap: 16px;
            opacity: 0.85;
        }
        .header-top-left i {
            font-size: 12px;
            margin-right: 4px;
        }
        .header-top-right {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .header-top-right a {
            color: var(--color-white);
            opacity: 0.8;
            font-size: 12px;
            transition: opacity var(--transition-fast);
        }
        .header-top-right a:hover {
            opacity: 1;
            color: var(--color-accent);
        }

        /* Header Main */
        .header-main {
            background: var(--color-white);
            height: var(--header-main-height);
            border-bottom: 1px solid var(--color-border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
            display: flex;
            align-items: center;
        }
        .header-main .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .header-logo {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: -0.3px;
            color: var(--color-primary);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .header-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-white);
            font-size: 18px;
            font-weight: 700;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            height: 100%;
        }
        .header-nav a {
            display: flex;
            align-items: center;
            padding: 0 18px;
            height: 100%;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-light);
            position: relative;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .header-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 18px;
            right: 18px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px 3px 0 0;
            transform: scaleX(0);
            transition: transform var(--transition-normal);
        }
        .header-nav a:hover,
        .header-nav a.active {
            color: var(--color-primary);
        }
        .header-nav a.active::after,
        .header-nav a:hover::after {
            transform: scaleX(1);
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-header-outline {
            border: 2px solid var(--color-primary);
            color: var(--color-primary);
            background: transparent;
        }
        .btn-header-outline:hover {
            background: var(--color-primary);
            color: var(--color-white);
        }
        .btn-header-filled {
            background: var(--color-accent);
            color: var(--color-white);
            border: 2px solid var(--color-accent);
        }
        .btn-header-filled:hover {
            background: var(--color-accent-hover);
            border-color: var(--color-accent-hover);
            color: var(--color-white);
        }
        .mobile-menu-btn {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            cursor: pointer;
            color: var(--color-primary);
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mobile-menu-btn:hover {
            background: var(--color-bg-alt);
        }

        /* Mobile Nav */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            z-index: 2000;
            opacity: 0;
            transition: opacity var(--transition-normal);
        }
        .mobile-nav-overlay.open {
            display: block;
            opacity: 1;
        }
        .mobile-nav-panel {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100%;
            background: var(--color-white);
            z-index: 2001;
            padding: 24px;
            transition: right var(--transition-slow);
            overflow-y: auto;
            box-shadow: var(--shadow-xl);
        }
        .mobile-nav-panel.open {
            right: 0;
        }
        .mobile-nav-panel .close-btn {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            cursor: pointer;
            border-radius: 50%;
            background: var(--color-bg-alt);
            margin-bottom: 20px;
            transition: background var(--transition-fast);
        }
        .mobile-nav-panel .close-btn:hover {
            background: var(--color-border);
        }
        .mobile-nav-panel a {
            display: block;
            padding: 14px 0;
            font-size: 16px;
            font-weight: 500;
            border-bottom: 1px solid var(--color-border-light);
            color: var(--color-text);
            transition: color var(--transition-fast);
        }
        .mobile-nav-panel a:hover,
        .mobile-nav-panel a.active {
            color: var(--color-accent);
        }

        /* Hero */
        .hero {
            position: relative;
            background: var(--color-bg-dark);
            color: var(--color-white);
            padding: 80px 0 90px;
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.35;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 46, 0.92) 0%, rgba(26, 26, 46, 0.7) 50%, rgba(26, 26, 46, 0.85) 100%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .hero-content {
            max-width: 560px;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(212, 168, 83, 0.2);
            border: 1px solid rgba(212, 168, 83, 0.4);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent);
            letter-spacing: 0.5px;
            margin-bottom: 20px;
        }
        .hero h1 {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -1px;
            margin-bottom: 18px;
        }
        .hero h1 span {
            color: var(--color-accent);
        }
        .hero-desc {
            font-size: 17px;
            line-height: 1.7;
            opacity: 0.85;
            margin-bottom: 32px;
            color: #d0d0d8;
        }
        .hero-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.2px;
        }
        .btn-primary {
            background: var(--color-accent);
            color: var(--color-white);
            border: 2px solid var(--color-accent);
        }
        .btn-primary:hover {
            background: var(--color-accent-hover);
            border-color: var(--color-accent-hover);
            color: var(--color-white);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }
        .btn-secondary {
            background: transparent;
            color: var(--color-white);
            border: 2px solid rgba(255, 255, 255, 0.4);
        }
        .btn-secondary:hover {
            border-color: var(--color-white);
            background: rgba(255, 255, 255, 0.08);
            color: var(--color-white);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
        }
        .btn-outline:hover {
            background: var(--color-primary);
            color: var(--color-white);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
        }
        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .hero-card-stack {
            position: relative;
            width: 100%;
            max-width: 420px;
        }
        .hero-card-main {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-xl);
            color: var(--color-text);
            position: relative;
            z-index: 3;
        }
        .hero-card-main .card-stat-row {
            display: flex;
            gap: 20px;
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--color-border-light);
        }
        .hero-card-main .stat-item {
            text-align: center;
            flex: 1;
        }
        .hero-card-main .stat-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1;
        }
        .hero-card-main .stat-label {
            font-size: 12px;
            color: var(--color-text-muted);
            margin-top: 4px;
        }
        .hero-card-float {
            position: absolute;
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            box-shadow: var(--shadow-lg);
            z-index: 2;
            font-size: 14px;
            color: var(--color-text);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .hero-card-float.top-right {
            top: -30px;
            right: -20px;
            z-index: 4;
        }
        .hero-card-float.bottom-left {
            bottom: -25px;
            left: -15px;
        }
        .hero-card-float .float-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--color-accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--color-accent);
            flex-shrink: 0;
        }

        /* Section */
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--color-bg-alt);
        }
        .section-dark {
            background: var(--color-bg-dark);
            color: var(--color-white);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
            max-width: 680px;
            margin-left: auto;
            margin-right: auto;
        }
        .section-tag {
            display: inline-block;
            padding: 5px 14px;
            background: var(--color-accent-light);
            color: var(--color-accent);
            font-size: 13px;
            font-weight: 600;
            border-radius: 20px;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }
        .section-dark .section-tag {
            background: rgba(212, 168, 83, 0.2);
            color: var(--color-accent);
        }
        .section-title {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--color-text-light);
            line-height: 1.7;
        }
        .section-dark .section-desc {
            color: #c0c0cc;
        }

        /* Grid */
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        /* Cards */
        .card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }
        .card-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
            background: var(--color-accent-light);
            color: var(--color-accent);
        }
        .card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.3;
        }
        .card p {
            font-size: 14px;
            color: var(--color-text-light);
            line-height: 1.6;
        }
        .card-img {
            width: 100%;
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            aspect-ratio: 16/10;
            object-fit: cover;
            background: var(--color-bg-alt);
        }
        .card-tag {
            display: inline-block;
            padding: 3px 10px;
            background: var(--color-accent-light);
            color: var(--color-accent);
            font-size: 12px;
            font-weight: 600;
            border-radius: 12px;
            margin-bottom: 8px;
        }
        .card-meta {
            font-size: 13px;
            color: var(--color-text-muted);
            display: flex;
            gap: 12px;
            align-items: center;
            margin-top: 8px;
        }

        /* Feature list */
        .feature-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px 48px;
            align-items: center;
        }
        .feature-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .feature-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }
        .feature-item .fi-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--color-accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 16px;
            color: var(--color-accent);
        }
        .feature-item h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .feature-item p {
            font-size: 14px;
            color: var(--color-text-light);
            line-height: 1.5;
        }
        .feature-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .feature-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        /* Stats row */
        .stats-row {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
            text-align: center;
        }
        .stat-block {
            flex: 0 0 auto;
            min-width: 140px;
        }
        .stat-block .stat-number {
            font-size: 40px;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1;
            letter-spacing: -1px;
        }
        .stat-block .stat-unit {
            font-size: 18px;
            font-weight: 600;
        }
        .stat-block .stat-name {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-top: 6px;
        }
        .section-dark .stat-block .stat-name {
            color: #b0b0bc;
        }

        /* Process / Timeline */
        .process-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        .process-item {
            text-align: center;
            position: relative;
            padding: 24px 16px;
            background: var(--color-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
        }
        .process-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .process-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-accent);
            color: var(--color-white);
            font-size: 20px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
        }
        .process-item h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
        }
        .process-item p {
            font-size: 13px;
            color: var(--color-text-light);
            line-height: 1.5;
        }

        /* FAQ */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-normal);
        }
        .faq-item:hover {
            border-color: var(--color-border);
        }
        .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            user-select: none;
            transition: background var(--transition-fast);
        }
        .faq-question:hover {
            background: var(--color-bg-alt);
        }
        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 13px;
            color: var(--color-accent);
            transition: transform var(--transition-normal);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow);
            padding: 0 22px;
            font-size: 14px;
            color: var(--color-text-light);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        /* CTA */
        .cta-section {
            text-align: center;
            padding: 64px 0;
            background: var(--color-bg-dark);
            color: var(--color-white);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.2;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .cta-section p {
            font-size: 16px;
            opacity: 0.8;
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn {
            font-size: 16px;
            padding: 15px 34px;
        }

        /* Content list */
        .content-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .content-card {
            display: flex;
            gap: 16px;
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 18px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            align-items: center;
        }
        .content-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--color-border);
        }
        .content-card-img {
            width: 100px;
            height: 75px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--color-bg-alt);
        }
        .content-card-body {
            flex: 1;
            min-width: 0;
        }
        .content-card-body h4 {
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .content-card-body .content-meta {
            font-size: 12px;
            color: var(--color-text-muted);
            display: flex;
            gap: 10px;
            align-items: center;
        }

        /* Footer */
        .footer {
            background: var(--color-primary);
            color: #c0c0cc;
            padding: 48px 0 28px;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer h4 {
            color: var(--color-white);
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .footer p {
            line-height: 1.7;
            font-size: 13px;
            opacity: 0.8;
        }
        .footer a {
            color: #c0c0cc;
            font-size: 13px;
            display: block;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }
        .footer a:hover {
            color: var(--color-accent);
        }
        .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-white);
            margin-bottom: 10px;
            display: block;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 12px;
            opacity: 0.7;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
        }

        /* Empty state */
        .empty-state {
            text-align: center;
            padding: 40px;
            color: var(--color-text-muted);
            font-size: 15px;
            background: var(--color-bg-alt);
            border-radius: var(--radius-lg);
            grid-column: 1 / -1;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero .container {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .hero-visual {
                order: -1;
                max-width: 360px;
                margin: 0 auto;
            }
            .hero h1 {
                font-size: 36px;
            }
            .hero {
                padding: 50px 0 60px;
                min-height: auto;
            }
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-row {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .feature-image {
                max-width: 400px;
                margin: 0 auto;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .content-list {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-nav {
                display: none;
            }
            .header-cta .btn-header {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
            }
            .header-top {
                font-size: 11px;
                height: auto;
                padding: 6px 0;
                line-height: 1.5;
            }
            .header-top .container {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
            .hero {
                padding: 40px 0 48px;
            }
            .hero h1 {
                font-size: 28px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .hero-buttons {
                flex-direction: column;
                gap: 10px;
            }
            .hero-buttons .btn {
                width: 100%;
                justify-content: center;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .process-list {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stats-row {
                gap: 20px;
            }
            .stat-block {
                min-width: 100px;
            }
            .stat-block .stat-number {
                font-size: 30px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .hero-card-float.top-right {
                top: -15px;
                right: -8px;
                font-size: 12px;
                padding: 10px 14px;
            }
            .hero-card-float.bottom-left {
                bottom: -15px;
                left: -5px;
                font-size: 12px;
                padding: 10px 14px;
            }
            .content-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .content-card-img {
                width: 100%;
                height: 160px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .hero h1 {
                font-size: 24px;
            }
            .section-title {
                font-size: 22px;
            }
            .process-list {
                grid-template-columns: 1fr;
            }
            .stats-row {
                flex-direction: column;
                align-items: center;
                gap: 16px;
            }
            .card {
                padding: 20px;
            }
            .header-logo {
                font-size: 18px;
            }
            .header-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
            .hero-card-stack {
                max-width: 280px;
            }
            .hero-card-float.top-right {
                display: none;
            }
            .hero-card-float.bottom-left {
                display: none;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #1a3a5c;
            --color-primary-light: #2c5f8a;
            --color-accent: #e8913a;
            --color-accent-hover: #d17a2a;
            --color-bg: #f8f9fb;
            --color-white: #ffffff;
            --color-text: #2c2c2c;
            --color-text-soft: #5e6b7a;
            --color-text-muted: #8b95a5;
            --color-border: #e2e7ed;
            --color-border-light: #eef1f5;
            --color-card-shadow: rgba(26, 58, 92, 0.06);
            --color-card-hover-shadow: rgba(26, 58, 92, 0.12);
            --color-green: #2e9e5f;
            --color-red: #d94a4a;
            --color-blue-tag: #e8f2fb;
            --color-blue-tag-text: #1a3a5c;
            --color-orange-tag: #fef5eb;
            --color-orange-tag-text: #c07320;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --radius-xl: 18px;
            --shadow-sm: 0 1px 3px rgba(26, 58, 92, 0.04);
            --shadow-md: 0 4px 16px rgba(26, 58, 92, 0.07);
            --shadow-lg: 0 8px 30px rgba(26, 58, 92, 0.10);
            --shadow-xl: 0 14px 40px rgba(26, 58, 92, 0.14);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --max-width: 1200px;
            --header-main-height: 64px;
            --header-top-height: 34px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header Top Bar */
        .header-top {
            background-color: #0f2840;
            color: #c5cfda;
            font-size: 13px;
            height: var(--header-top-height);
            display: flex;
            align-items: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .header-top .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .header-top-left {
            display: flex;
            align-items: center;
            gap: 18px;
        }
        .header-top-left span {
            color: #a6b4c2;
        }
        .header-top-right {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .header-top-right a {
            color: #c5cfda;
            font-size: 12.5px;
            transition: color var(--transition-fast);
        }
        .header-top-right a:hover {
            color: #ffffff;
        }
        .header-top-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background-color: #4ecb71;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(78, 203, 113, 0.5);
            }
            50% {
                box-shadow: 0 0 0 8px rgba(78, 203, 113, 0);
            }
        }

        /* Header Main */
        .header-main {
            background-color: var(--color-white);
            height: var(--header-main-height);
            border-bottom: 1px solid var(--color-border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }
        .header-main .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .header-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.3px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .header-logo-icon {
            width: 34px;
            height: 34px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 16px;
            flex-shrink: 0;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .header-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-soft);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .header-nav a:hover {
            color: var(--color-primary);
            background-color: #f4f7fb;
        }
        .header-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
            background-color: #eaf1f8;
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            padding: 9px 20px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            background-color: var(--color-accent);
            color: #ffffff;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .header-cta:hover {
            background-color: var(--color-accent-hover);
            box-shadow: 0 4px 14px rgba(232, 145, 58, 0.3);
            transform: translateY(-1px);
        }
        .header-mobile-toggle {
            display: none;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            background: var(--color-white);
            transition: all var(--transition-fast);
        }
        .header-mobile-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background-color: var(--color-text);
            border-radius: 1px;
            transition: all var(--transition-base);
        }
        .header-mobile-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .header-mobile-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .header-mobile-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }
        .header-nav-mobile {
            display: none;
            position: absolute;
            top: var(--header-main-height);
            left: 0;
            right: 0;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-lg);
            padding: 12px 24px;
            flex-direction: column;
            gap: 4px;
            z-index: 99;
        }
        .header-nav-mobile.open {
            display: flex;
        }
        .header-nav-mobile a {
            display: block;
            padding: 12px 14px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-soft);
            transition: all var(--transition-fast);
        }
        .header-nav-mobile a:hover,
        .header-nav-mobile a.active {
            color: var(--color-primary);
            background-color: #f4f7fb;
        }
        .header-nav-mobile a.active {
            font-weight: 600;
        }

        /* Page Banner */
        .page-banner {
            background: linear-gradient(155deg, #0f2840 0%, #1a3a5c 35%, #1e4d78 70%, #1a3a5c 100%);
            padding: 60px 0 56px;
            position: relative;
            overflow: hidden;
            color: #ffffff;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            opacity: 0.12;
            mix-blend-mode: overlay;
            pointer-events: none;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -120px;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(232, 145, 58, 0.18) 0%, transparent 70%);
            pointer-events: none;
        }
        .page-banner .container {
            position: relative;
            z-index: 1;
        }
        .page-banner-breadcrumb {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .page-banner-breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
            transition: color var(--transition-fast);
        }
        .page-banner-breadcrumb a:hover {
            color: #ffffff;
        }
        .page-banner-breadcrumb .sep {
            color: rgba(255, 255, 255, 0.35);
        }
        .page-banner h1 {
            font-size: 38px;
            font-weight: 700;
            letter-spacing: -0.5px;
            line-height: 1.25;
            margin-bottom: 12px;
        }
        .page-banner p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.78);
            max-width: 620px;
            line-height: 1.6;
        }
        .page-banner-stats {
            display: flex;
            gap: 32px;
            margin-top: 24px;
            flex-wrap: wrap;
        }
        .page-banner-stat {
            display: flex;
            flex-direction: column;
        }
        .page-banner-stat-num {
            font-size: 30px;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: -0.5px;
        }
        .page-banner-stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 2px;
        }

        /* Main */
        main {
            padding: 0 0 60px;
        }

        /* Section */
        .section {
            padding: 52px 0;
        }
        .section-header {
            margin-bottom: 32px;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 8px;
            background: var(--color-orange-tag);
            padding: 3px 10px;
            border-radius: 20px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.3px;
            line-height: 1.3;
            margin-bottom: 8px;
        }
        .section-desc {
            font-size: 15px;
            color: var(--color-text-soft);
            max-width: 640px;
            line-height: 1.65;
        }

        /* Filter Bar */
        .filter-bar {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 28px;
            padding: 8px 0;
        }
        .filter-btn {
            padding: 8px 16px;
            border-radius: 22px;
            font-size: 14px;
            font-weight: 500;
            border: 1px solid var(--color-border);
            background: var(--color-white);
            color: var(--color-text-soft);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .filter-btn:hover {
            border-color: var(--color-primary-light);
            color: var(--color-primary);
            background: #f8fafc;
        }
        .filter-btn.active {
            background: var(--color-primary);
            color: #ffffff;
            border-color: var(--color-primary);
            font-weight: 600;
        }

        /* Review Cards Grid */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
            gap: 22px;
        }
        .review-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
        }
        .review-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }
        .review-card-img-wrap {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #eef2f7;
        }
        .review-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .review-card:hover .review-card-img-wrap img {
            transform: scale(1.04);
        }
        .review-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            background: var(--color-accent);
            color: #ffffff;
            z-index: 2;
            letter-spacing: 0.3px;
        }
        .review-card-badge.top-rated {
            background: #e8a020;
        }
        .review-card-badge.new {
            background: var(--color-primary-light);
        }
        .review-card-score {
            position: absolute;
            top: 12px;
            right: 12px;
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.94);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            color: var(--color-primary);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            z-index: 2;
            letter-spacing: -0.5px;
        }
        .review-card-score.high {
            color: var(--color-green);
        }
        .review-card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .review-card-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.4;
            letter-spacing: -0.2px;
        }
        .review-card-body h3 a {
            color: inherit;
            transition: color var(--transition-fast);
        }
        .review-card-body h3 a:hover {
            color: var(--color-primary-light);
        }
        .review-card-meta {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-bottom: 10px;
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .review-card-desc {
            font-size: 14px;
            color: var(--color-text-soft);
            line-height: 1.6;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .review-card-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            margin-top: 12px;
        }
        .tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            background: var(--color-blue-tag);
            color: var(--color-blue-tag-text);
        }
        .tag.orange {
            background: var(--color-orange-tag);
            color: var(--color-orange-tag-text);
        }

        /* Comparison Table */
        .comparison-table-wrap {
            overflow-x: auto;
            background: var(--color-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
            font-size: 14px;
        }
        .comparison-table thead th {
            background: #f4f7fb;
            padding: 14px 16px;
            text-align: left;
            font-weight: 600;
            color: var(--color-primary);
            font-size: 13px;
            letter-spacing: 0.3px;
            border-bottom: 2px solid var(--color-border);
            white-space: nowrap;
        }
        .comparison-table thead th:first-child {
            border-radius: var(--radius-lg) 0 0 0;
        }
        .comparison-table thead th:last-child {
            border-radius: 0 var(--radius-lg) 0 0;
        }
        .comparison-table tbody td {
            padding: 13px 16px;
            border-bottom: 1px solid var(--color-border-light);
            color: var(--color-text-soft);
            vertical-align: middle;
        }
        .comparison-table tbody tr:last-child td {
            border-bottom: none;
        }
        .comparison-table tbody tr:hover {
            background: #fafbfd;
        }
        .table-score {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            color: var(--color-primary);
        }
        .table-score-bar {
            width: 60px;
            height: 6px;
            border-radius: 3px;
            background: #e2e7ed;
            overflow: hidden;
            display: inline-block;
            vertical-align: middle;
        }
        .table-score-bar-fill {
            height: 100%;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--color-accent) 0%, #f0b870 100%);
        }
        .table-check {
            color: var(--color-green);
            font-weight: 700;
            font-size: 16px;
        }
        .table-cross {
            color: var(--color-red);
            font-weight: 700;
            font-size: 16px;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(140deg, #0f2840 0%, #1a3a5c 50%, #1e4d78 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            color: #ffffff;
            position: relative;
            overflow: hidden;
            margin-top: 16px;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            left: -80px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(232, 145, 58, 0.2) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            right: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: -0.3px;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 30px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            background: var(--color-accent);
            color: #ffffff;
            transition: all var(--transition-fast);
            letter-spacing: 0.2px;
        }
        .btn-cta:hover {
            background: var(--color-accent-hover);
            box-shadow: 0 6px 22px rgba(232, 145, 58, 0.35);
            transform: translateY(-2px);
        }

        /* Pagination */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            margin-top: 36px;
            flex-wrap: wrap;
        }
        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 38px;
            height: 38px;
            padding: 0 10px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            border: 1px solid var(--color-border);
            background: var(--color-white);
            color: var(--color-text-soft);
            transition: all var(--transition-fast);
        }
        .pagination a:hover {
            border-color: var(--color-primary-light);
            color: var(--color-primary);
            background: #f8fafc;
        }
        .pagination .current {
            background: var(--color-primary);
            color: #ffffff;
            border-color: var(--color-primary);
            font-weight: 600;
        }
        .pagination .dots {
            border: none;
            background: transparent;
            color: var(--color-text-muted);
            cursor: default;
        }

        /* Footer */
        .footer {
            background-color: #0f1f30;
            color: #b8c5d2;
            padding: 48px 0 24px;
            font-size: 14px;
            line-height: 1.8;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #ffffff;
            display: block;
            margin-bottom: 10px;
            letter-spacing: -0.2px;
        }
        .footer-grid h4 {
            font-size: 15px;
            font-weight: 600;
            color: #e0e6ed;
            margin-bottom: 12px;
            letter-spacing: -0.1px;
        }
        .footer-grid a {
            display: block;
            color: #8b9aab;
            font-size: 13.5px;
            padding: 3px 0;
            transition: color var(--transition-fast);
        }
        .footer-grid a:hover {
            color: #ffffff;
        }
        .footer-grid p {
            font-size: 13px;
            color: #8b9aab;
            line-height: 1.7;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 18px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 12.5px;
            color: #6b7a8a;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .review-grid {
                grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            }
            .page-banner h1 {
                font-size: 30px;
            }
            .page-banner-stats {
                gap: 20px;
            }
            .page-banner-stat-num {
                font-size: 24px;
            }
            .cta-section {
                padding: 36px 28px;
            }
            .cta-section h2 {
                font-size: 24px;
            }
            .section-title {
                font-size: 24px;
            }
        }

        @media (max-width: 768px) {
            .header-nav {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .header-mobile-toggle {
                display: flex;
            }
            .header-main {
                height: 56px;
            }
            :root {
                --header-main-height: 56px;
            }
            .header-top {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .review-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .page-banner {
                padding: 40px 0 36px;
            }
            .page-banner h1 {
                font-size: 26px;
            }
            .page-banner p {
                font-size: 15px;
            }
            .page-banner-stats {
                gap: 14px;
            }
            .page-banner-stat-num {
                font-size: 22px;
            }
            .section {
                padding: 36px 0;
            }
            .section-title {
                font-size: 22px;
            }
            .comparison-table-wrap {
                border-radius: var(--radius-md);
            }
            .comparison-table {
                font-size: 13px;
            }
            .comparison-table thead th,
            .comparison-table tbody td {
                padding: 10px 12px;
            }
            .cta-section {
                padding: 30px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 21px;
            }
            .cta-section p {
                font-size: 14px;
            }
            .btn-cta {
                padding: 11px 24px;
                font-size: 14px;
            }
            .filter-bar {
                gap: 6px;
            }
            .filter-btn {
                padding: 6px 12px;
                font-size: 13px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .page-banner h1 {
                font-size: 22px;
            }
            .page-banner p {
                font-size: 14px;
            }
            .page-banner-stats {
                gap: 10px;
                flex-direction: column;
            }
            .page-banner-stat-num {
                font-size: 20px;
            }
            .section-title {
                font-size: 20px;
            }
            .review-card-body h3 {
                font-size: 15px;
            }
            .review-card-score {
                width: 38px;
                height: 38px;
                font-size: 15px;
                top: 8px;
                right: 8px;
            }
            .review-card-badge {
                top: 8px;
                left: 8px;
                font-size: 11px;
                padding: 3px 8px;
            }
            .pagination a,
            .pagination span {
                min-width: 32px;
                height: 32px;
                font-size: 13px;
            }
        }

/* roulang page: article */
:root {
            --primary: #0d47a1;
            --primary-dark: #0a356f;
            --secondary: #ff6f00;
            --secondary-light: #ffa000;
            --bg: #f8fafc;
            --white: #ffffff;
            --text: #1e293b;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
            --radius: 8px;
            --radius-lg: 12px;
            --transition: 0.2s ease;
            --container-max: 1140px;
        }
        *,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
        html{font-size:16px;scroll-behavior:smooth;}
        body{font-family:"Segoe UI","Noto Sans SC",system-ui,-apple-system,sans-serif;line-height:1.6;color:var(--text);background:var(--bg);}
        a{text-decoration:none;color:inherit;}
        img{max-width:100%;display:block;}
        ul,ol{list-style:none;}
        .container{width:100%;max-width:var(--container-max);margin:0 auto;padding:0 20px;}
        .btn{
            display:inline-flex;align-items:center;justify-content:center;
            padding:10px 28px;border-radius:6px;font-weight:500;
            transition:all var(--transition);cursor:pointer;border:none;
            font-size:15px;line-height:1.5;
        }
        .btn-primary{
            background:var(--primary);color:white;box-shadow:0 2px 8px rgba(13,71,161,0.3);
        }
        .btn-primary:hover{background:var(--primary-dark);box-shadow:0 4px 14px rgba(13,71,161,0.4);transform:translateY(-1px);}
        .btn-outline{
            background:transparent;border:2px solid var(--primary);color:var(--primary);
        }
        .btn-outline:hover{background:var(--primary);color:white;}
        /* HEADER */
        .header-top{background:var(--primary);color:rgba(255,255,255,0.9);font-size:13px;padding:6px 0;}
        .header-top .container{display:flex;justify-content:space-between;align-items:center;}
        .header-top .top-cta{color:white;font-weight:500;margin-left:16px;transition:opacity var(--transition);}
        .header-top .top-cta:hover{opacity:0.85;}
        .header-main{background:var(--white);box-shadow:var(--shadow-sm);position:sticky;top:0;z-index:100;padding:14px 0;}
        .header-main .container{display:flex;align-items:center;justify-content:space-between;}
        .logo{font-size:1.6rem;font-weight:700;color:var(--primary);letter-spacing:-0.5px;}
        .logo span{color:var(--secondary);}
        .header-nav{display:flex;gap:28px;align-items:center;}
        .header-nav a{font-weight:500;color:var(--text);padding:6px 0;position:relative;transition:color var(--transition);}
        .header-nav a:hover,.header-nav a.active{color:var(--primary);}
        .header-nav a.active::after{content:'';position:absolute;bottom:0;left:0;width:100%;height:3px;background:var(--secondary);border-radius:2px;}
        .mobile-toggle{display:none;background:none;border:none;font-size:1.6rem;color:var(--primary);cursor:pointer;}
        /* ARTICLE */
        .breadcrumb{padding:20px 0 10px;color:var(--text-muted);font-size:14px;}
        .breadcrumb a{color:var(--primary);transition:color var(--transition);}
        .breadcrumb a:hover{color:var(--primary-dark);}
        .article-title{font-size:2.2rem;font-weight:700;margin-bottom:16px;line-height:1.3;color:var(--primary-dark);}
        .article-meta{display:flex;flex-wrap:wrap;gap:20px;color:var(--text-muted);font-size:14px;margin-bottom:32px;padding-bottom:16px;border-bottom:1px solid var(--border);}
        .article-content{font-size:16px;line-height:1.8;color:var(--text);margin-bottom:48px;}
        .article-content h2{font-size:1.5rem;margin:40px 0 16px;color:var(--primary);}
        .article-content h3{font-size:1.2rem;margin:28px 0 12px;color:var(--text);}
        .article-content p{margin-bottom:18px;}
        .article-content a{color:var(--primary);text-decoration:underline;}
        .article-content ul, .article-content ol{margin:12px 0 20px 20px;}
        .article-content li{margin-bottom:8px;}
        .article-content img{border-radius:var(--radius);margin:20px 0;}
        .not-found{text-align:center;padding:60px 20px;color:var(--text-muted);}
        .not-found .btn{margin-top:24px;}
        /* SECTIONS */
        .related-categories{padding:60px 0;background:var(--white);}
        .related-categories h2{font-size:1.8rem;text-align:center;margin-bottom:36px;color:var(--primary-dark);}
        .category-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:30px;}
        .category-card{border-radius:var(--radius-lg);overflow:hidden;background:var(--white);box-shadow:var(--shadow);transition:box-shadow 0.3s,transform 0.3s;display:block;}
        .category-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);}
        .card-img{height:180px;background-size:cover;background-position:center;}
        .card-body{padding:24px;}
        .card-body h3{font-size:1.3rem;margin-bottom:10px;color:var(--primary);}
        .card-body p{color:var(--text-muted);font-size:15px;line-height:1.6;}
        .cta-section{padding:70px 0;text-align:center;background:linear-gradient(135deg, var(--primary) 0%, #0a356f 100%);color:white;}
        .cta-section h2{font-size:2rem;margin-bottom:16px;}
        .cta-section p{font-size:1.1rem;margin-bottom:28px;opacity:0.9;}
        .cta-section .btn-primary{background:var(--secondary);color:white;box-shadow:0 4px 16px rgba(0,0,0,0.2);font-weight:600;padding:12px 32px;font-size:16px;}
        .cta-section .btn-primary:hover{background:var(--secondary-light);transform:translateY(-2px);}
        .faq-section{padding:60px 0;background:var(--bg);}
        .faq-section h2{font-size:1.8rem;text-align:center;margin-bottom:40px;color:var(--primary-dark);}
        .faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:20px;}
        .faq-item{background:var(--white);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);border-left:4px solid var(--secondary);}
        .faq-item h3{font-size:1.2rem;margin-bottom:10px;color:var(--primary);}
        .faq-item p{color:var(--text-muted);font-size:15px;line-height:1.7;}
        /* FOOTER */
        .footer{background:#0b2a4a;color:#cbd5e1;padding:50px 0 20px;margin-top:0;}
        .footer .container{}
        .footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:32px;margin-bottom:30px;}
        .footer-logo{font-size:1.4rem;font-weight:700;color:white;display:block;margin-bottom:12px;}
        .footer h4{color:white;margin-bottom:14px;font-size:1rem;}
        .footer a{display:block;color:#94a3b8;margin-bottom:8px;transition:color 0.2s;font-size:14px;}
        .footer a:hover{color:white;}
        .footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;color:#64748b;font-size:13px;border-top:1px solid #1e3b5a;padding-top:20px;}
        /* RESPONSIVE */
        @media (max-width:768px){
            .header-nav{display:none;position:absolute;top:100%;left:0;width:100%;background:white;flex-direction:column;padding:20px;box-shadow:var(--shadow);z-index:99;}
            .header-nav.active{display:flex;}
            .mobile-toggle{display:block;}
            .article-title{font-size:1.8rem;}
            .category-grid{grid-template-columns:1fr;}
        }

/* roulang page: category2 */
:root {
            --color-primary: #1a3c5e;
            --color-primary-light: #1e4d7b;
            --color-primary-dark: #0f2640;
            --color-accent: #c8943e;
            --color-accent-light: #d4a855;
            --color-accent-dark: #a67a2e;
            --color-bg: #f5f6f8;
            --color-bg-white: #ffffff;
            --color-bg-light: #fafbfc;
            --color-bg-dark: #0d1b2d;
            --color-text: #1a1f2e;
            --color-text-secondary: #5a6072;
            --color-text-weak: #8b8fa3;
            --color-text-on-dark: #e8eaef;
            --color-border: #e2e5ec;
            --color-border-light: #eff1f5;
            --color-success: #2d9d5a;
            --color-warning: #e8a33c;
            --color-danger: #d14343;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.10), 0 4px 8px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.13), 0 6px 12px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.15s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1200px;
            --container-narrow: 880px;
            --header-height: 68px;
            --topbar-height: 36px;
        }

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

        html {
            font-size: 16px;
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            line-height: 1.65;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-narrow {
            width: 100%;
            max-width: var(--container-narrow);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== TOP BAR ========== */
        .topbar {
            background-color: var(--color-primary-dark);
            color: rgba(255, 255, 255, 0.85);
            font-size: 13px;
            height: var(--topbar-height);
            line-height: var(--topbar-height);
            z-index: 1001;
            position: relative;
        }
        .topbar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 100%;
        }
        .topbar-left {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .topbar-left span {
            opacity: 0.8;
        }
        .topbar-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .topbar-right a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 13px;
            transition: color var(--transition-fast);
        }
        .topbar-right a:hover {
            color: var(--color-accent-light);
        }

        /* ========== HEADER ========== */
        .header {
            background-color: var(--color-bg-white);
            border-bottom: 1px solid var(--color-border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            gap: 24px;
        }
        .header-logo {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-primary);
            white-space: nowrap;
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
        }
        .header-logo:hover {
            color: var(--color-primary-light);
        }
        .header-logo .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .header-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .header-nav a:hover {
            color: var(--color-primary);
            background-color: rgba(26, 60, 94, 0.05);
        }
        .header-nav a.active {
            color: var(--color-primary);
            background-color: rgba(26, 60, 94, 0.08);
            font-weight: 600;
        }
        .header-nav a.nav-cta {
            background-color: var(--color-accent);
            color: #fff;
            font-weight: 600;
            padding: 8px 18px;
            border-radius: var(--radius-md);
            margin-left: 8px;
            transition: all var(--transition-base);
        }
        .header-nav a.nav-cta:hover {
            background-color: var(--color-accent-dark);
            color: #fff;
        }

        /* Mobile nav toggle */
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            background: none;
            border: none;
            z-index: 1002;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--color-text);
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ========== MAIN ========== */
        .main {
            flex: 1;
        }

        /* ========== SECTION SPACING ========== */
        .section {
            padding: 60px 0;
        }
        .section-sm {
            padding: 40px 0;
        }
        .section-lg {
            padding: 80px 0;
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
            letter-spacing: -0.02em;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-secondary);
            margin-bottom: 36px;
            max-width: 600px;
        }
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-header .section-title {
            margin-bottom: 8px;
        }
        .section-header .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-bar {
            background-color: var(--color-bg-light);
            border-bottom: 1px solid var(--color-border-light);
            padding: 12px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--color-text-weak);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb .separator {
            color: var(--color-border);
            font-size: 0.7rem;
        }
        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 500;
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            padding: 64px 0;
            color: #fff;
            text-align: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 45, 0.88) 0%, rgba(26, 60, 94, 0.78) 50%, rgba(13, 27, 45, 0.85) 100%);
            z-index: 0;
        }
        .page-banner .container {
            position: relative;
            z-index: 1;
        }
        .page-banner .banner-icon {
            font-size: 3rem;
            margin-bottom: 12px;
            display: block;
        }
        .page-banner h1 {
            font-size: 2.25rem;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: -0.02em;
            color: #fff;
        }
        .page-banner .banner-desc {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .page-banner .banner-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 24px;
            flex-wrap: wrap;
        }
        .page-banner .banner-stat {
            text-align: center;
        }
        .page-banner .banner-stat .stat-num {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-accent-light);
        }
        .page-banner .banner-stat .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 2px;
        }

        /* ========== SUB CATEGORY CARDS ========== */
        .subcat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .subcat-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            cursor: pointer;
            text-decoration: none;
            display: block;
            position: relative;
            overflow: hidden;
        }
        .subcat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-primary-light);
        }
        .subcat-card .card-icon {
            font-size: 2.5rem;
            margin-bottom: 14px;
            display: block;
            transition: transform var(--transition-base);
        }
        .subcat-card:hover .card-icon {
            transform: scale(1.1);
        }
        .subcat-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
        }
        .subcat-card p {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            line-height: 1.5;
        }
        .subcat-card .card-arrow {
            display: inline-block;
            margin-top: 10px;
            color: var(--color-accent);
            font-weight: 600;
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .subcat-card:hover .card-arrow {
            color: var(--color-accent-dark);
        }

        /* ========== ARTICLE LIST ========== */
        .article-list-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .article-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-border);
        }
        .article-card .card-img-wrap {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background-color: #eef1f5;
        }
        .article-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .article-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .article-card .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background-color: var(--color-accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 20px;
            z-index: 1;
        }
        .article-card .card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .article-card .card-body h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card .card-body p {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            line-height: 1.55;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 12px;
            font-size: 0.78rem;
            color: var(--color-text-weak);
        }
        .article-card .card-meta .meta-reads::before {
            content: '👁 ';
            font-size: 0.7rem;
        }

        /* ========== STEPS FLOW ========== */
        .steps-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        .step-item {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            position: relative;
            transition: all var(--transition-base);
        }
        .step-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-primary-light);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            color: #fff;
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 14px;
        }
        .step-item h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
        }
        .step-item p {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.5;
        }
        .step-connector {
            display: none;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-bg-white);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-border);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 20px;
            text-align: left;
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: color var(--transition-fast);
            line-height: 1.4;
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background-color: var(--color-bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            color: var(--color-text-secondary);
            transition: all var(--transition-base);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            background-color: var(--color-primary);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 60%, var(--color-primary-light) 100%);
            color: #fff;
            text-align: center;
            border-radius: var(--radius-xl);
            padding: 48px 32px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -15%;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }
        .cta-section .container-narrow {
            position: relative;
            z-index: 1;
        }
        .cta-section h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: #fff;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 24px;
            font-size: 0.95rem;
        }
        .btn-cta {
            display: inline-block;
            background-color: var(--color-accent);
            color: #fff;
            font-weight: 600;
            padding: 12px 32px;
            border-radius: 30px;
            font-size: 1rem;
            transition: all var(--transition-base);
            border: none;
            cursor: pointer;
        }
        .btn-cta:hover {
            background-color: var(--color-accent-light);
            box-shadow: 0 8px 24px rgba(200, 148, 62, 0.35);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ========== FOOTER ========== */
        .footer {
            background-color: var(--color-bg-dark);
            color: var(--color-text-on-dark);
            padding: 48px 0 24px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-logo {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            display: block;
            margin-bottom: 10px;
        }
        .footer p {
            font-size: 0.875rem;
            color: rgba(232, 234, 239, 0.7);
            line-height: 1.6;
        }
        .footer h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer a {
            display: block;
            font-size: 0.875rem;
            color: rgba(232, 234, 239, 0.7);
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }
        .footer a:hover {
            color: var(--color-accent-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 18px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.8rem;
            color: rgba(232, 234, 239, 0.5);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .subcat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-list-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-flow {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .section {
                padding: 44px 0;
            }
        }

        @media (max-width: 768px) {
            .topbar {
                display: none;
            }
            .header-inner {
                height: 56px;
            }
            .header-nav {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: var(--color-bg-white);
                flex-direction: column;
                padding: 72px 24px 24px;
                gap: 4px;
                box-shadow: var(--shadow-xl);
                transition: right var(--transition-base);
                z-index: 1001;
                align-items: stretch;
            }
            .header-nav.open {
                right: 0;
            }
            .header-nav a {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                font-size: 1rem;
            }
            .header-nav a.nav-cta {
                margin-left: 0;
                text-align: center;
                margin-top: 8px;
            }
            .nav-toggle {
                display: flex;
            }
            .subcat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .article-list-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .steps-flow {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .page-banner {
                padding: 44px 0;
            }
            .page-banner h1 {
                font-size: 1.55rem;
            }
            .page-banner .banner-stats {
                gap: 24px;
            }
            .page-banner .banner-stat .stat-num {
                font-size: 1.4rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section {
                padding: 36px 0;
            }
            .cta-section {
                padding: 36px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h3 {
                font-size: 1.3rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .container-narrow {
                padding: 0 16px;
            }
            .subcat-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .steps-flow {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .page-banner h1 {
                font-size: 1.35rem;
            }
            .page-banner .banner-desc {
                font-size: 0.9rem;
            }
            .page-banner .banner-stats {
                gap: 16px;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .section-header {
                margin-bottom: 28px;
            }
            .subcat-card {
                padding: 22px 16px;
            }
            .article-card .card-body {
                padding: 14px 16px 16px;
            }
        }