/* roulang page: index */
:root {
            --primary: #0F4C81;
            --primary-dark: #0A3A62;
            --primary-light: #1A5F9E;
            --accent: #FF8C00;
            --accent-hover: #E67A00;
            --bg: #FFFFFF;
            --bg-light: #F4F6F9;
            --bg-dark: #1A1A2E;
            --text: #1E1E1E;
            --text-secondary: #5A5A5A;
            --text-light: #FFFFFF;
            --border: #E5E5E5;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);
            --radius-sm: 4px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --transition: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-hero: 56px;
            --font-h2: 40px;
            --font-h3: 28px;
            --font-body: 16px;
            --font-small: 14px;
            --max-width: 1200px;
            --nav-height: 70px;
        }

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

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            color: var(--text);
            background: var(--bg);
            line-height: 1.75;
            font-size: var(--font-body);
            overflow-x: hidden;
            padding-top: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
        }
        input,
        textarea,
        select {
            font-family: inherit;
        }
        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== NAVIGATION ========== */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.75);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.3);
            transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
        }
        .site-nav.scrolled {
            background: #FFFFFF;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
            border-bottom: 1px solid var(--border);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.5px;
        }
        .nav-logo:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }
        .nav-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            border-radius: var(--radius);
            transition: color var(--transition), background var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }
        .nav-links li a:hover {
            color: var(--primary);
            background: rgba(15, 76, 129, 0.06);
            text-decoration: none;
        }
        .nav-links li a.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(15, 76, 129, 0.08);
        }
        .nav-cta {
            display: inline-block;
            padding: 10px 24px;
            font-size: 14px;
            font-weight: 600;
            color: #fff !important;
            background: var(--accent);
            border-radius: var(--radius);
            border: none;
            transition: background var(--transition), transform var(--transition);
            white-space: nowrap;
            letter-spacing: 0.5px;
            text-decoration: none !important;
            margin-left: 8px;
        }
        .nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
            text-decoration: none !important;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text);
            cursor: pointer;
            padding: 8px;
            line-height: 1;
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            width: 100%;
            background: #fff;
            box-shadow: var(--shadow-lg);
            z-index: 999;
            padding: 16px 20px;
            flex-direction: column;
            gap: 4px;
            border-top: 1px solid var(--border);
        }
        .mobile-menu.active {
            display: flex;
        }
        .mobile-menu a {
            display: block;
            padding: 12px 16px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text);
            border-radius: var(--radius);
            text-decoration: none;
            transition: background var(--transition);
        }
        .mobile-menu a:hover {
            background: var(--bg-light);
            text-decoration: none;
        }
        .mobile-menu .mobile-cta {
            background: var(--accent);
            color: #fff;
            text-align: center;
            font-weight: 600;
            margin-top: 8px;
        }
        .mobile-menu .mobile-cta:hover {
            background: var(--accent-hover);
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .nav-inner {
                padding: 0 16px;
            }
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            background-attachment: fixed;
            padding-top: var(--nav-height);
            overflow: hidden;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 76, 129, 0.88) 0%, rgba(10, 40, 65, 0.75) 50%, rgba(0, 0, 0, 0.55) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 60px 20px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .hero-left {
            color: #fff;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 1px;
            color: #fff;
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
        }
        .hero-left h1 {
            font-size: var(--font-hero);
            font-weight: 700;
            line-height: 1.2;
            margin: 0 0 20px;
            color: #fff;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
            letter-spacing: 1px;
        }
        .hero-left .hero-subtitle {
            font-size: 20px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 32px;
            max-width: 540px;
        }
        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 36px;
            font-size: 16px;
            font-weight: 600;
            border-radius: var(--radius);
            border: none;
            letter-spacing: 0.5px;
            transition: all var(--transition);
            cursor: pointer;
            text-decoration: none;
            white-space: nowrap;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 140, 0, 0.35);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            box-shadow: 0 6px 22px rgba(255, 140, 0, 0.45);
            transform: translateY(-2px);
            text-decoration: none;
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.7);
            box-shadow: none;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            text-decoration: none;
            transform: translateY(-2px);
        }
        .btn-secondary {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-md);
        }
        .btn-secondary:hover {
            background: var(--primary-dark);
            color: #fff;
            text-decoration: none;
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 18px 44px;
            font-size: 18px;
        }
        .hero-right {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .data-panel {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            color: #fff;
        }
        .data-panel h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 16px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .data-panel h3 i {
            color: var(--accent);
        }
        .data-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.15);
            font-size: 14px;
        }
        .data-row:last-child {
            border-bottom: none;
        }
        .data-row .team-name {
            font-weight: 500;
        }
        .data-row .data-val {
            font-weight: 700;
            color: var(--accent);
            font-size: 16px;
        }
        .data-row .data-rank {
            width: 28px;
            height: 28px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
        }
        .data-row .data-rank.top {
            background: var(--accent);
            color: #fff;
        }
        .hero-scroll-indicator {
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 3;
            color: #fff;
            font-size: 28px;
            animation: bounce 2s infinite;
            opacity: 0.8;
            cursor: pointer;
        }
        @keyframes bounce {
            0%,
            100% {
                transform: translateX(-50%) translateY(0);
            }
            50% {
                transform: translateX(-50%) translateY(14px);
            }
        }
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 30px;
                text-align: center;
                padding: 40px 16px;
            }
            .hero-left h1 {
                font-size: 36px;
            }
            .hero-left .hero-subtitle {
                font-size: 17px;
                max-width: 100%;
                margin: 0 auto 24px;
            }
            .hero-buttons {
                justify-content: center;
            }
            .hero-right {
                max-width: 480px;
                margin: 0 auto;
                width: 100%;
            }
            :root {
                --font-hero: 36px;
            }
        }
        @media (max-width: 640px) {
            .hero-left h1 {
                font-size: 28px;
            }
            .hero-left .hero-subtitle {
                font-size: 15px;
            }
            .btn {
                padding: 12px 24px;
                font-size: 14px;
            }
            .hero-content {
                padding: 30px 12px;
                gap: 20px;
            }
            .data-panel {
                padding: 18px 14px;
            }
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 70px 0;
        }
        .section-sm {
            padding: 50px 0;
        }
        .section-lg {
            padding: 90px 0;
        }
        .section-bg-light {
            background: var(--bg-light);
        }
        .section-bg-dark {
            background: var(--bg-dark);
            color: #fff;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: var(--font-h2);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .section-header p {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-bg-dark .section-header h2 {
            color: #fff;
        }
        .section-bg-dark .section-header p {
            color: rgba(255, 255, 255, 0.75);
        }
        @media (max-width: 640px) {
            .section {
                padding: 40px 0;
            }
            .section-lg {
                padding: 50px 0;
            }
            .section-header h2 {
                font-size: 28px;
            }
            .section-header p {
                font-size: 15px;
            }
            :root {
                --font-h2: 28px;
                --font-h3: 22px;
            }
        }

        /* ========== CARDS ========== */
        .card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 28px;
            transition: all var(--transition);
            height: 100%;
            border: 1px solid transparent;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-5px);
            border-color: var(--border-light);
        }
        .card-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(15, 76, 129, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            font-size: 26px;
            color: var(--primary);
            transition: all var(--transition);
        }
        .card:hover .card-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }
        .card h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text);
        }
        .card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        .card-tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(255, 140, 0, 0.1);
            color: var(--accent);
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        /* ========== FEATURE CARDS GRID ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ========== SCENE DEMO ========== */
        .scene-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            padding: 40px 0;
        }
        .scene-row.reverse {
            direction: rtl;
        }
        .scene-row.reverse .scene-text {
            direction: ltr;
        }
        .scene-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            aspect-ratio: 16/9;
        }
        .scene-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        .scene-text h3 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text);
        }
        .scene-text p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .scene-highlights {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .scene-highlights li {
            padding: 6px 0 6px 24px;
            position: relative;
            font-size: 15px;
            color: var(--text);
            line-height: 1.6;
        }
        .scene-highlights li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 14px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
        }
        @media (max-width: 768px) {
            .scene-row {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 20px 0;
            }
            .scene-row.reverse {
                direction: ltr;
            }
            .scene-text h3 {
                font-size: 22px;
            }
        }

        /* ========== NEWS LIST ========== */
        .news-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .news-list li {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border);
            transition: background var(--transition);
        }
        .news-list li:hover {
            background: rgba(15, 76, 129, 0.02);
        }
        .news-date {
            font-size: 13px;
            color: var(--text-secondary);
            white-space: nowrap;
            font-weight: 500;
            min-width: 90px;
            padding-top: 2px;
        }
        .news-info {
            flex: 1;
        }
        .news-info h4 {
            font-size: 17px;
            font-weight: 600;
            margin: 0 0 6px;
            color: var(--text);
            line-height: 1.4;
        }
        .news-info h4 a {
            color: var(--text);
            text-decoration: none;
        }
        .news-info h4 a:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .news-info p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0 0 8px;
            line-height: 1.6;
        }
        .news-read-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition);
        }
        .news-read-more:hover {
            gap: 8px;
            color: var(--accent-hover);
            text-decoration: none;
        }
        @media (max-width: 640px) {
            .news-list li {
                flex-direction: column;
                gap: 8px;
                padding: 14px 0;
            }
            .news-date {
                min-width: auto;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            margin-bottom: 14px;
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            width: 100%;
            padding: 18px 24px;
            background: none;
            border: none;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            text-align: left;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            line-height: 1.5;
        }
        .faq-question i {
            color: var(--primary);
            transition: transform var(--transition);
            font-size: 14px;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 24px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ========== BRAND INTRO ========== */
        .brand-intro {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-secondary);
        }
        .brand-intro h2 {
            font-size: var(--font-h2);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 20px;
        }
        .brand-intro p {
            margin-bottom: 16px;
        }

        /* ========== SOCIAL PROOF ========== */
        .social-proof-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            gap: 40px;
            padding: 20px 0;
        }
        .social-proof-item {
            text-align: center;
            min-width: 100px;
        }
        .social-proof-number {
            font-size: 42px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
        }
        .social-proof-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 6px;
        }
        .partner-logos {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            gap: 36px;
            padding: 10px 0;
        }
        .partner-logo-placeholder {
            width: 120px;
            height: 50px;
            background: #E8ECF1;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: #8A8A8A;
            font-weight: 500;
            transition: all var(--transition);
            letter-spacing: 0.5px;
        }
        .partner-logo-placeholder:hover {
            background: #D0D7E0;
            color: var(--text);
        }

        /* ========== ENTRY MATRIX ========== */
        .entry-matrix {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .entry-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            text-decoration: none;
            color: var(--text);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
        }
        .entry-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--primary);
            text-decoration: none;
            color: var(--primary);
        }
        .entry-card .entry-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(15, 76, 129, 0.07);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary);
            transition: all var(--transition);
        }
        .entry-card:hover .entry-icon {
            background: var(--primary);
            color: #fff;
        }
        .entry-card h4 {
            font-size: 16px;
            font-weight: 600;
            margin: 0;
        }
        @media (max-width: 1024px) {
            .entry-matrix {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .entry-matrix {
                grid-template-columns: 1fr;
            }
        }

        /* ========== HIGHLIGHTS WALL ========== */
        .highlights-wall {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .highlight-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .highlight-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .highlight-card .highlight-img {
            aspect-ratio: 16/10;
            overflow: hidden;
            background: #E8ECF1;
        }
        .highlight-card .highlight-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .highlight-card:hover .highlight-img img {
            transform: scale(1.04);
        }
        .highlight-card .highlight-body {
            padding: 20px;
        }
        .highlight-card .highlight-body h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text);
        }
        .highlight-card .highlight-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }
        @media (max-width: 1024px) {
            .highlights-wall {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .highlights-wall {
                grid-template-columns: 1fr;
            }
        }

        /* ========== SECURITY SYSTEM ========== */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .security-item {
            text-align: center;
            padding: 30px 20px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all var(--transition);
        }
        .security-item:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-3px);
        }
        .security-item .sec-icon {
            font-size: 36px;
            color: var(--accent);
            margin-bottom: 14px;
        }
        .security-item h4 {
            font-size: 17px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
        }
        .security-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.6;
            margin: 0;
        }
        @media (max-width: 1024px) {
            .security-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .security-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== APP DOWNLOAD ========== */
        .app-section-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .app-info h2 {
            font-size: var(--font-h2);
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text);
        }
        .app-info p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .app-badges {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .app-badge {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 24px;
            background: var(--text);
            color: #fff;
            border-radius: var(--radius);
            font-size: 14px;
            font-weight: 600;
            text-decoration: none;
            transition: all var(--transition);
            border: 2px solid var(--text);
        }
        .app-badge:hover {
            background: #fff;
            color: var(--text);
            text-decoration: none;
        }
        .app-badge i {
            font-size: 22px;
        }
        .app-mockup {
            background: #E8ECF1;
            border-radius: var(--radius-xl);
            aspect-ratio: 4/3;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .app-mockup img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        @media (max-width: 768px) {
            .app-section-inner {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .app-mockup {
                max-width: 360px;
                margin: 0 auto;
            }
        }

        /* ========== STICKY BOTTOM BAR ========== */
        .sticky-bottom-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            z-index: 998;
            background: var(--bg-dark);
            padding: 12px 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
            border-top: 2px solid rgba(255, 140, 0, 0.4);
        }
        .sticky-bottom-bar.visible {
            opacity: 1;
            pointer-events: auto;
        }
        .sticky-bottom-bar .sticky-text {
            color: #fff;
            font-size: 15px;
            font-weight: 500;
            white-space: nowrap;
        }
        .sticky-bottom-bar .sticky-cta {
            padding: 10px 28px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 14px;
            text-decoration: none;
            white-space: nowrap;
            transition: background var(--transition);
            letter-spacing: 0.5px;
        }
        .sticky-bottom-bar .sticky-cta:hover {
            background: var(--accent-hover);
            text-decoration: none;
            color: #fff;
        }
        @media (max-width: 640px) {
            .sticky-bottom-bar {
                flex-direction: column;
                gap: 8px;
                padding: 10px 16px;
                text-align: center;
            }
            .sticky-bottom-bar .sticky-text {
                font-size: 13px;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: #B0B0B0;
            padding: 50px 0 30px;
            font-size: 14px;
            line-height: 1.8;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 30px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: #B0B0B0;
            text-decoration: none;
            transition: color var(--transition);
            font-size: 14px;
        }
        .footer-col ul li a:hover {
            color: #fff;
            text-decoration: none;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: 13px;
        }
        .footer-bottom a {
            color: #B0B0B0;
            text-decoration: none;
        }
        .footer-bottom a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .footer-bottom .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .footer-social {
            display: flex;
            gap: 14px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #B0B0B0;
            font-size: 16px;
            transition: all var(--transition);
            text-decoration: none;
        }
        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            text-decoration: none;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom .footer-links {
                justify-content: center;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* ========== DEEP CONTENT ========== */
        .deep-content {
            display: grid;
            grid-template-columns: 7fr 5fr;
            gap: 40px;
            align-items: start;
        }
        .deep-content.reverse {
            grid-template-columns: 5fr 7fr;
        }
        .deep-content .deep-text h3 {
            font-size: var(--font-h3);
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text);
        }
        .deep-content .deep-text p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 14px;
        }
        .deep-content .deep-visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            aspect-ratio: 16/10;
            background: #E8ECF1;
        }
        .deep-content .deep-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .data-table-wrap {
            overflow-x: auto;
            margin-top: 16px;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
        }
        .data-table th {
            background: var(--primary);
            color: #fff;
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
            white-space: nowrap;
        }
        .data-table td {
            padding: 10px 16px;
            border-bottom: 1px solid var(--border);
            color: var(--text-secondary);
        }
        .data-table tr:hover td {
            background: rgba(15, 76, 129, 0.03);
        }
        @media (max-width: 768px) {
            .deep-content {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .deep-content.reverse {
                grid-template-columns: 1fr;
            }
        }

        /* ========== UTILITY ========== */
        .text-center {
            text-align: center;
        }
        .mt-20 {
            margin-top: 20px;
        }
        .mt-30 {
            margin-top: 30px;
        }
        .mb-20 {
            margin-bottom: 20px;
        }
        .mb-30 {
            margin-bottom: 30px;
        }
        .divider {
            height: 1px;
            background: var(--border);
            margin: 0;
            border: none;
        }
        .tag {
            display: inline-block;
            padding: 5px 14px;
            background: rgba(15, 76, 129, 0.07);
            color: var(--primary);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.3px;
        }
        .tag-accent {
            background: rgba(255, 140, 0, 0.1);
            color: var(--accent);
        }

/* roulang page: category3 */
:root {
            --primary: #0F4C81;
            --primary-dark: #0A3A62;
            --primary-light: #1A5F9E;
            --accent: #FF8C00;
            --accent-hover: #E67A00;
            --bg: #FFFFFF;
            --bg-light: #F4F6F9;
            --bg-dark: #1A1A2E;
            --text: #1E1E1E;
            --text-secondary: #5A5A5A;
            --text-light: #FFFFFF;
            --border: #E5E5E5;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);
            --radius-sm: 4px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --transition: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-hero: 56px;
            --font-h2: 40px;
            --font-h3: 28px;
            --font-body: 16px;
            --font-small: 14px;
            --max-width: 1200px;
            --nav-height: 70px;
        }

        @media (max-width: 640px) {
            :root {
                --font-hero: 36px;
                --font-h2: 28px;
                --font-h3: 22px;
            }
        }

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

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            color: var(--text);
            background: var(--bg);
            line-height: 1.75;
            font-size: var(--font-body);
            overflow-x: hidden;
            padding-top: 0;
            margin: 0;
        }

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

        a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

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

        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== NAVIGATION ========== */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.75);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.3);
            transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
        }

        .site-nav.scrolled {
            background: #FFFFFF;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
            border-bottom: 1px solid var(--border);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }

        .nav-logo:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }

        .nav-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            border-radius: var(--radius);
            transition: color var(--transition), background var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }

        .nav-links li a:hover {
            color: var(--primary);
            background: rgba(15, 76, 129, 0.06);
            text-decoration: none;
        }

        .nav-links li a.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(15, 76, 129, 0.08);
        }

        .nav-cta {
            display: inline-block;
            padding: 10px 24px;
            font-size: 14px;
            font-weight: 600;
            color: #fff !important;
            background: var(--accent);
            border-radius: var(--radius);
            border: none;
            transition: background var(--transition), transform var(--transition);
            white-space: nowrap;
            letter-spacing: 0.5px;
            text-decoration: none !important;
            margin-left: 8px;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
            text-decoration: none !important;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text);
            padding: 8px;
            border-radius: var(--radius);
            transition: background var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(15, 76, 129, 0.06);
        }

        @media (max-width: 1024px) {
            .nav-links {
                gap: 2px;
            }
            .nav-links li a {
                padding: 8px 10px;
                font-size: 14px;
            }
            .nav-cta {
                padding: 8px 16px;
                font-size: 13px;
                margin-left: 4px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                background: #FFFFFF;
                flex-direction: column;
                padding: 16px 20px;
                box-shadow: var(--shadow-lg);
                border-bottom: 1px solid var(--border);
                gap: 0;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li a {
                display: block;
                padding: 12px 16px;
                width: 100%;
                border-radius: var(--radius);
                font-size: 15px;
            }
            .nav-cta {
                display: none;
            }
            .nav-cta-mobile {
                display: block;
                width: 100%;
                text-align: center;
                margin-top: 8px;
                padding: 12px 24px;
                font-size: 15px;
                font-weight: 600;
                color: #fff !important;
                background: var(--accent);
                border-radius: var(--radius);
                text-decoration: none !important;
            }
            .nav-toggle {
                display: block;
            }
        }

        @media (min-width: 769px) {
            .nav-cta-mobile {
                display: none;
            }
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            min-height: 380px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, rgba(15, 76, 129, 0.88) 0%, rgba(10, 58, 98, 0.9) 100%), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            margin-top: 0;
            padding-top: var(--nav-height);
        }

        .page-banner .banner-content {
            padding: 60px 0 50px;
            color: #fff;
            max-width: 800px;
        }

        .page-banner .banner-breadcrumb {
            display: flex;
            gap: 8px;
            align-items: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .page-banner .banner-breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            text-decoration: none;
        }

        .page-banner .banner-breadcrumb a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .page-banner .banner-breadcrumb .sep {
            color: rgba(255, 255, 255, 0.5);
        }

        .page-banner h1 {
            font-size: var(--font-h2);
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
            line-height: 1.25;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
        }

        .page-banner .banner-subtitle {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.9);
            line-height: 1.7;
            max-width: 650px;
        }

        @media (max-width: 640px) {
            .page-banner {
                min-height: 280px;
            }
            .page-banner .banner-content {
                padding: 40px 0 35px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .page-banner .banner-subtitle {
                font-size: 15px;
            }
        }

        /* ========== SECTION STYLES ========== */
        .section-py {
            padding: 60px 0;
        }

        .section-py-sm {
            padding: 40px 0;
        }

        @media (max-width: 640px) {
            .section-py {
                padding: 36px 0;
            }
            .section-py-sm {
                padding: 28px 0;
            }
        }

        .bg-light {
            background: var(--bg-light);
        }

        .bg-white {
            background: #FFFFFF;
        }

        .section-title {
            font-size: var(--font-h3);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: var(--font-body);
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.6;
        }

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

        .section-header .section-title {
            margin-bottom: 10px;
        }

        /* ========== FEATURE CARDS ROW ========== */
        .feature-cards-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-md);
            transition: transform var(--transition), box-shadow var(--transition);
            text-align: center;
            border: 1px solid var(--border-light);
        }

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

        .feature-card .card-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: rgba(15, 76, 129, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 26px;
            color: var(--primary);
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 8px;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .feature-cards-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 520px) {
            .feature-cards-row {
                grid-template-columns: 1fr;
            }
        }

        /* ========== FULL-WIDTH REPORT STRIPS ========== */
        .report-strip {
            display: flex;
            align-items: stretch;
            gap: 0;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition);
            min-height: 280px;
        }

        .report-strip:hover {
            box-shadow: var(--shadow-lg);
        }

        .report-strip .strip-image {
            flex: 0 0 42%;
            position: relative;
            overflow: hidden;
            min-height: 280px;
        }

        .report-strip .strip-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            top: 0;
            left: 0;
        }

        .report-strip .strip-body {
            flex: 1;
            padding: 32px 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            background: #fff;
        }

        .report-strip.bg-light-strip .strip-body {
            background: var(--bg-light);
        }

        .report-strip .strip-tag {
            display: inline-block;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            color: #fff;
            background: var(--accent);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            width: fit-content;
            letter-spacing: 0.5px;
        }

        .report-strip .strip-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 10px;
            line-height: 1.35;
        }

        .report-strip .strip-meta {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 12px;
            display: flex;
            gap: 16px;
            align-items: center;
            flex-wrap: wrap;
        }

        .report-strip .strip-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .report-strip .strip-summary {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 16px;
        }

        .report-strip .strip-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
            width: fit-content;
        }

        .report-strip .strip-link:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .report-strip .strip-link i {
            font-size: 12px;
            transition: transform var(--transition);
        }

        .report-strip .strip-link:hover i {
            transform: translateX(3px);
        }

        @media (max-width: 768px) {
            .report-strip {
                flex-direction: column;
                min-height: auto;
            }
            .report-strip .strip-image {
                flex: 0 0 200px;
                min-height: 200px;
                width: 100%;
            }
            .report-strip .strip-body {
                padding: 24px 20px;
            }
            .report-strip .strip-title {
                font-size: 19px;
            }
        }

        /* ========== STATS BAR ========== */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .stat-item {
            padding: 24px 16px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }

        .stat-item .stat-number {
            font-size: 40px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .stat-item .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .stat-item .stat-number {
                font-size: 32px;
            }
        }

        @media (max-width: 480px) {
            .stats-bar {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-item .stat-number {
                font-size: 28px;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 20px 0;
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }

        .faq-item .faq-question {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 4px 0;
            transition: color var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: inherit;
        }

        .faq-item .faq-question:hover {
            color: var(--primary);
        }

        .faq-item .faq-question .faq-icon {
            font-size: 14px;
            color: var(--accent);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-item .faq-answer {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            padding-top: 10px;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

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

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            box-shadow: var(--shadow-xl);
        }

        .cta-section h2 {
            font-size: var(--font-h3);
            font-weight: 700;
            color: #fff;
            margin: 0 0 12px;
        }

        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            margin: 0 0 24px;
            line-height: 1.7;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-accent-lg {
            display: inline-block;
            padding: 14px 36px;
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            background: var(--accent);
            border-radius: var(--radius);
            border: none;
            cursor: pointer;
            transition: background var(--transition), transform var(--transition);
            letter-spacing: 0.5px;
            text-decoration: none !important;
        }

        .btn-accent-lg:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            text-decoration: none !important;
            color: #fff;
        }

        .btn-outline-lg {
            display: inline-block;
            padding: 14px 36px;
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.7);
            border-radius: var(--radius);
            cursor: pointer;
            transition: background var(--transition), border-color var(--transition);
            letter-spacing: 0.5px;
            text-decoration: none !important;
            margin-left: 12px;
        }

        .btn-outline-lg:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            text-decoration: none !important;
            color: #fff;
        }

        @media (max-width: 640px) {
            .cta-section {
                padding: 32px 20px;
            }
            .btn-accent-lg,
            .btn-outline-lg {
                display: block;
                width: 100%;
                margin: 8px 0;
            }
            .btn-outline-lg {
                margin-left: 0;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: #B0B0B0;
            padding: 50px 0 30px;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 30px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 16px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: #B0B0B0;
            text-decoration: none;
            font-size: 14px;
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: #fff;
            text-decoration: none;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #B0B0B0;
            font-size: 16px;
            transition: background var(--transition), color var(--transition);
            text-decoration: none;
        }

        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            text-decoration: none;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
        }

        .footer-bottom .footer-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom .footer-links a {
            color: #B0B0B0;
            text-decoration: none;
        }

        .footer-bottom .footer-links a:hover {
            color: #fff;
            text-decoration: underline;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* ========== SUBSCRIBE BOX ========== */
        .subscribe-box {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-md);
            text-align: center;
            border: 1px solid var(--border-light);
            max-width: 600px;
            margin: 0 auto;
        }

        .subscribe-box h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 8px;
        }

        .subscribe-box p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0 0 20px;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            max-width: 460px;
            margin: 0 auto;
        }

        .subscribe-form input {
            flex: 1;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            font-size: 15px;
            outline: none;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .subscribe-form input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.1);
        }

        .subscribe-form button {
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            background: var(--accent);
            border: none;
            border-radius: var(--radius);
            cursor: pointer;
            transition: background var(--transition);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .subscribe-form button:hover {
            background: var(--accent-hover);
        }

        @media (max-width: 520px) {
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form button {
                width: 100%;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0F4C81;
            --primary-dark: #0A3A62;
            --primary-light: #1A5F9E;
            --accent: #FF8C00;
            --accent-hover: #E67A00;
            --bg: #FFFFFF;
            --bg-light: #F4F6F9;
            --bg-dark: #1A1A2E;
            --text: #1E1E1E;
            --text-secondary: #5A5A5A;
            --text-light: #FFFFFF;
            --border: #E5E5E5;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);
            --radius-sm: 4px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --transition: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-h2: 40px;
            --font-h3: 28px;
            --font-body: 16px;
            --font-small: 14px;
            --max-width: 1200px;
            --nav-height: 70px;
        }

        @media (max-width: 640px) {
            :root {
                --font-h2: 28px;
                --font-h3: 22px;
            }
        }

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

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            color: var(--text);
            background: var(--bg);
            line-height: 1.75;
            font-size: var(--font-body);
            overflow-x: hidden;
            padding-top: 0;
            margin: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

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

        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== NAVIGATION ========== */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.75);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.3);
            transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
        }
        .site-nav.scrolled {
            background: #FFFFFF;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
            border-bottom: 1px solid var(--border);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.5px;
        }
        .nav-logo:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }
        .nav-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            border-radius: var(--radius);
            transition: color var(--transition), background var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }
        .nav-links li a:hover {
            color: var(--primary);
            background: rgba(15, 76, 129, 0.06);
            text-decoration: none;
        }
        .nav-links li a.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(15, 76, 129, 0.08);
        }
        .nav-cta {
            display: inline-block;
            padding: 10px 24px;
            font-size: 14px;
            font-weight: 600;
            color: #fff !important;
            background: var(--accent);
            border-radius: var(--radius);
            border: none;
            transition: background var(--transition), transform var(--transition);
            white-space: nowrap;
            letter-spacing: 0.5px;
            text-decoration: none !important;
            margin-left: 8px;
        }
        .nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
            text-decoration: none !important;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text);
            padding: 8px;
            border-radius: var(--radius);
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(15, 76, 129, 0.06);
        }

        @media (max-width: 1024px) {
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                background: #FFFFFF;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 12px 20px;
                box-shadow: var(--shadow-lg);
                display: none;
                z-index: 999;
                border-bottom: 1px solid var(--border);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li a {
                padding: 14px 16px;
                font-size: 16px;
                border-radius: 0;
                border-bottom: 1px solid var(--border-light);
            }
            .nav-links li:last-child a {
                border-bottom: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-cta-mobile {
                display: block;
                margin: 12px 0 0;
                text-align: center;
                padding: 14px 24px;
                font-size: 15px;
                font-weight: 600;
                color: #fff !important;
                background: var(--accent);
                border-radius: var(--radius);
                text-decoration: none !important;
            }
            .nav-toggle {
                display: block;
            }
        }

        @media (min-width: 1025px) {
            .nav-cta-mobile {
                display: none;
            }
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            margin-top: var(--nav-height);
            background: linear-gradient(135deg, rgba(15, 76, 129, 0.92) 0%, rgba(10, 58, 98, 0.95) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 60px 0 50px;
            position: relative;
            color: #fff;
            text-align: center;
        }
        .page-banner .banner-title {
            font-size: var(--font-h2);
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
            letter-spacing: 1px;
        }
        .page-banner .banner-subtitle {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 700px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .breadcrumb .separator {
            color: rgba(255, 255, 255, 0.5);
        }

        @media (max-width: 640px) {
            .page-banner {
                padding: 40px 0 32px;
            }
            .page-banner .banner-subtitle {
                font-size: 15px;
            }
        }

        /* ========== MAIN CONTENT AREA ========== */
        .main-content-section {
            padding: 60px 0;
            background: var(--bg);
        }
        .article-list-col {
            padding-right: 30px;
        }
        .sidebar-col {
            padding-left: 10px;
        }
        @media (max-width: 768px) {
            .article-list-col {
                padding-right: 0;
                margin-bottom: 40px;
            }
            .sidebar-col {
                padding-left: 0;
            }
            .main-content-section {
                padding: 40px 0;
            }
        }

        /* ========== ARTICLE CARD ========== */
        .article-card {
            display: flex;
            gap: 24px;
            padding: 24px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            margin-bottom: 24px;
            transition: box-shadow var(--transition), transform var(--transition);
            border: 1px solid var(--border-light);
            align-items: flex-start;
        }
        .article-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .article-card .article-cover {
            flex-shrink: 0;
            width: 220px;
            height: 150px;
            border-radius: var(--radius);
            overflow: hidden;
            position: relative;
        }
        .article-card .article-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .article-card:hover .article-cover img {
            transform: scale(1.05);
        }
        .article-card .article-info {
            flex: 1;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }
        .article-card .article-date {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-card .article-date i {
            color: var(--accent);
            font-size: 12px;
        }
        .article-card .article-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card .article-title a {
            color: var(--text);
            text-decoration: none;
        }
        .article-card .article-title a:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .article-card .article-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
            flex: 1;
        }
        .article-card .read-more {
            align-self: flex-start;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition), color var(--transition);
        }
        .article-card .read-more:hover {
            gap: 10px;
            color: var(--accent-hover);
            text-decoration: none;
        }
        .article-card .read-more i {
            font-size: 12px;
            transition: transform var(--transition);
        }
        .article-card .read-more:hover i {
            transform: translateX(3px);
        }
        .article-card .article-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 8px;
        }
        .article-card .article-tags .tag {
            font-size: 12px;
            padding: 3px 10px;
            background: rgba(15, 76, 129, 0.07);
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-weight: 500;
            white-space: nowrap;
        }

        @media (max-width: 640px) {
            .article-card {
                flex-direction: column;
                gap: 16px;
                padding: 16px;
            }
            .article-card .article-cover {
                width: 100%;
                height: 180px;
            }
            .article-card .article-title {
                font-size: 17px;
            }
        }

        /* ========== SIDEBAR ========== */
        .sidebar-widget {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 24px;
            margin-bottom: 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .sidebar-widget h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--primary);
            position: relative;
        }
        .sidebar-widget h4::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 40px;
            height: 2px;
            background: var(--accent);
        }
        .sidebar-search {
            display: flex;
            gap: 0;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .sidebar-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.1);
        }
        .sidebar-search input {
            flex: 1;
            border: none;
            padding: 12px 16px;
            font-size: 14px;
            outline: none;
            background: var(--bg-light);
            color: var(--text);
            min-width: 0;
        }
        .sidebar-search input::placeholder {
            color: #999;
        }
        .sidebar-search button {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px 18px;
            cursor: pointer;
            transition: background var(--transition);
            font-size: 15px;
            flex-shrink: 0;
        }
        .sidebar-search button:hover {
            background: var(--primary-dark);
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud .tag-item {
            display: inline-block;
            padding: 7px 14px;
            font-size: 13px;
            background: var(--bg-light);
            color: var(--text-secondary);
            border-radius: 20px;
            text-decoration: none;
            transition: all var(--transition);
            border: 1px solid transparent;
            font-weight: 500;
        }
        .tag-cloud .tag-item:hover {
            background: rgba(15, 76, 129, 0.08);
            color: var(--primary);
            border-color: var(--primary);
            text-decoration: none;
        }
        .tag-cloud .tag-item.hot {
            background: rgba(255, 140, 0, 0.08);
            color: var(--accent);
            font-weight: 600;
        }
        .sidebar-popular {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .sidebar-popular li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .sidebar-popular li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .sidebar-popular li a {
            font-size: 14px;
            color: var(--text);
            text-decoration: none;
            line-height: 1.5;
            display: block;
            transition: color var(--transition);
        }
        .sidebar-popular li a:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .sidebar-popular li .pop-date {
            font-size: 12px;
            color: #999;
            margin-top: 2px;
        }

        /* ========== DATA CARDS SECTION ========== */
        .data-cards-section {
            padding: 60px 0;
            background: var(--bg-light);
        }
        .section-title {
            font-size: var(--font-h3);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            text-align: center;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            text-align: center;
            margin-bottom: 36px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .data-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow-md);
            transition: box-shadow var(--transition), transform var(--transition);
            border: 1px solid var(--border-light);
            height: 100%;
        }
        .data-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .data-card .data-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: rgba(15, 76, 129, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 26px;
            color: var(--primary);
        }
        .data-card .data-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
            letter-spacing: -0.5px;
        }
        .data-card .data-label {
            font-size: 14px;
            color: var(--text-secondary);
        }

        @media (max-width: 640px) {
            .data-cards-section {
                padding: 40px 0;
            }
            .data-card {
                margin-bottom: 16px;
            }
            .data-card .data-number {
                font-size: 28px;
            }
        }

        /* ========== FEATURED ANALYSIS ========== */
        .featured-analysis-section {
            padding: 60px 0;
            background: #fff;
        }
        .featured-row {
            display: flex;
            gap: 30px;
            align-items: center;
            margin-bottom: 40px;
            padding: 24px;
            border-radius: var(--radius-lg);
            background: var(--bg-light);
            transition: box-shadow var(--transition);
        }
        .featured-row:hover {
            box-shadow: var(--shadow-md);
        }
        .featured-row:nth-child(even) {
            flex-direction: row-reverse;
        }
        .featured-row:last-child {
            margin-bottom: 0;
        }
        .featured-row .featured-image {
            flex-shrink: 0;
            width: 300px;
            height: 200px;
            border-radius: var(--radius);
            overflow: hidden;
        }
        .featured-row .featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .featured-row .featured-text {
            flex: 1;
            min-width: 0;
        }
        .featured-row .featured-text h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }
        .featured-row .featured-text p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .featured-row .featured-link {
            font-weight: 600;
            color: var(--accent);
            font-size: 14px;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .featured-row .featured-link:hover {
            color: var(--accent-hover);
            text-decoration: none;
        }

        @media (max-width: 768px) {
            .featured-row,
            .featured-row:nth-child(even) {
                flex-direction: column;
                gap: 16px;
                padding: 16px;
            }
            .featured-row .featured-image {
                width: 100%;
                height: 180px;
            }
            .featured-row .featured-text h3 {
                font-size: 18px;
            }
        }

        /* ========== ANALYST TEAM ========== */
        .analyst-section {
            padding: 60px 0;
            background: var(--bg-light);
        }
        .analyst-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition);
            border: 1px solid var(--border-light);
            height: 100%;
        }
        .analyst-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-5px);
        }
        .analyst-card .analyst-avatar {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            margin: 0 auto 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 32px;
            font-weight: 700;
        }
        .analyst-card h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text);
        }
        .analyst-card .analyst-role {
            font-size: 13px;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 10px;
        }
        .analyst-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            padding: 60px 0;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            text-align: center;
            color: #fff;
        }
        .cta-section h2 {
            font-size: var(--font-h3);
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .cta-btn {
            display: inline-block;
            padding: 14px 40px;
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            background: var(--accent);
            border-radius: var(--radius);
            border: none;
            transition: background var(--transition), transform var(--transition);
            letter-spacing: 0.5px;
            text-decoration: none;
        }
        .cta-btn:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            text-decoration: none;
            color: #fff;
        }
        .cta-btn-outline {
            display: inline-block;
            padding: 14px 40px;
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.7);
            border-radius: var(--radius);
            transition: all var(--transition);
            letter-spacing: 0.5px;
            text-decoration: none;
            margin-left: 12px;
        }
        .cta-btn-outline:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
            color: #fff;
            text-decoration: none;
        }
        @media (max-width: 640px) {
            .cta-btn-outline {
                margin-left: 0;
                margin-top: 12px;
            }
            .cta-section {
                padding: 40px 0;
            }
        }

        /* ========== FAQ SECTION ========== */
        .faq-section {
            padding: 60px 0;
            background: #fff;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: 16px 0;
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border-light);
        }
        .faq-item .faq-question {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 8px 0;
            transition: color var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: inherit;
        }
        .faq-item .faq-question:hover {
            color: var(--primary);
        }
        .faq-item .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--primary);
            transition: transform var(--transition), background var(--transition);
        }
        .faq-item .faq-answer {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            padding: 0 0 8px;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: #B0B0B0;
            padding: 50px 0 20px;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 30px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: #B0B0B0;
            text-decoration: none;
            font-size: 14px;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        .footer-social {
            display: flex;
            gap: 14px;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: #B0B0B0;
            font-size: 16px;
            transition: all var(--transition);
            text-decoration: none;
        }
        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            text-decoration: none;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
        }
        .footer-links {
            display: flex;
            gap: 16px;
        }
        .footer-links a {
            color: #B0B0B0;
            text-decoration: none;
            font-size: 13px;
        }
        .footer-links a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* utility */
        .text-accent {
            color: var(--accent);
        }
        .bg-light {
            background: var(--bg-light);
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mt-0 {
            margin-top: 0;
        }

/* roulang page: category2 */
:root {
            --primary: #0F4C81;
            --primary-dark: #0A3A62;
            --primary-light: #1A5F9E;
            --accent: #FF8C00;
            --accent-hover: #E67A00;
            --bg: #FFFFFF;
            --bg-light: #F4F6F9;
            --bg-dark: #1A1A2E;
            --text: #1E1E1E;
            --text-secondary: #5A5A5A;
            --text-light: #FFFFFF;
            --border: #E5E5E5;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);
            --radius-sm: 4px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --transition: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-hero: 56px;
            --font-h2: 40px;
            --font-h3: 28px;
            --font-body: 16px;
            --font-small: 14px;
            --max-width: 1200px;
            --nav-height: 70px;
        }

        @media (max-width: 768px) {
            :root {
                --font-hero: 36px;
                --font-h2: 28px;
                --font-h3: 22px;
            }
        }

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

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            color: var(--text);
            background: var(--bg);
            line-height: 1.75;
            font-size: var(--font-body);
            overflow-x: hidden;
            padding-top: 0;
            margin: 0;
        }

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

        a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

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

        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin-top: 0;
            color: var(--text);
            font-weight: 700;
        }

        h1 {
            font-size: var(--font-hero);
            line-height: 1.2;
        }
        h2 {
            font-size: var(--font-h2);
            line-height: 1.25;
        }
        h3 {
            font-size: var(--font-h3);
            line-height: 1.3;
        }

        /* ========== NAVIGATION ========== */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.75);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.3);
            transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
        }

        .site-nav.scrolled {
            background: #FFFFFF;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
            border-bottom: 1px solid var(--border);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .nav-logo:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }

        .nav-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            border-radius: var(--radius);
            transition: color var(--transition), background var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }

        .nav-links li a:hover {
            color: var(--primary);
            background: rgba(15, 76, 129, 0.06);
            text-decoration: none;
        }

        .nav-links li a.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(15, 76, 129, 0.08);
        }

        .nav-cta {
            display: inline-block;
            padding: 10px 24px;
            font-size: 14px;
            font-weight: 600;
            color: #fff !important;
            background: var(--accent);
            border-radius: var(--radius);
            border: none;
            transition: background var(--transition), transform var(--transition);
            white-space: nowrap;
            letter-spacing: 0.5px;
            text-decoration: none !important;
            margin-left: 8px;
        }

        .nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
            text-decoration: none !important;
            color: #fff !important;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text);
            padding: 8px;
            cursor: pointer;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(15, 76, 129, 0.06);
        }

        @media (max-width: 1024px) {
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                flex-direction: column;
                background: #FFFFFF;
                padding: 16px 20px;
                gap: 4px;
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: transform var(--transition-slow), opacity var(--transition-slow);
                z-index: 999;
                border-bottom: 2px solid var(--border);
            }

            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }

            .nav-links li {
                width: 100%;
            }

            .nav-links li a {
                display: block;
                padding: 12px 16px;
                font-size: 16px;
                width: 100%;
                border-radius: var(--radius);
            }

            .nav-cta {
                margin-left: 0;
                margin-top: 8px;
                text-align: center;
                width: 100%;
                display: block;
                padding: 12px 24px;
                font-size: 15px;
            }

            .nav-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }

            .nav-cta-desktop {
                display: none;
            }
        }

        @media (min-width: 1025px) {
            .nav-cta-mobile {
                display: none;
            }
        }

        /* ========== HERO ========== */
        .page-hero {
            position: relative;
            min-height: 65vh;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            display: flex;
            align-items: center;
            margin-top: 0;
            padding-top: var(--nav-height);
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 76, 129, 0.85) 0%, rgba(0, 0, 0, 0.5) 100%);
            z-index: 1;
        }

        .page-hero .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 60px 0;
        }

        .page-hero .hero-inner {
            max-width: 800px;
        }

        .page-hero h1 {
            color: #FFFFFF;
            font-size: var(--font-hero);
            font-weight: 700;
            line-height: 1.2;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
            margin-bottom: 20px;
        }

        .page-hero .hero-subtitle {
            color: rgba(255, 255, 255, 0.92);
            font-size: 20px;
            line-height: 1.6;
            margin-bottom: 32px;
            max-width: 650px;
        }

        .page-hero .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-block;
            padding: 14px 36px;
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            background: var(--accent);
            border-radius: var(--radius);
            border: none;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            letter-spacing: 0.5px;
            text-decoration: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            text-decoration: none;
            color: #fff;
        }

        .btn-outline {
            display: inline-block;
            padding: 14px 36px;
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.8);
            border-radius: var(--radius);
            transition: background var(--transition), border-color var(--transition), transform var(--transition);
            letter-spacing: 0.5px;
            text-decoration: none;
            cursor: pointer;
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
            transform: translateY(-2px);
            text-decoration: none;
            color: #fff;
        }

        @media (max-width: 768px) {
            .page-hero {
                min-height: 55vh;
            }
            .page-hero h1 {
                font-size: var(--font-hero);
            }
            .page-hero .hero-subtitle {
                font-size: 16px;
            }
            .page-hero .hero-buttons {
                flex-direction: column;
            }
            .btn-primary,
            .btn-outline {
                text-align: center;
                width: 100%;
            }
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 70px 0;
        }

        .section-light {
            background: var(--bg-light);
        }

        .section-title {
            text-align: center;
            margin-bottom: 16px;
            font-size: var(--font-h2);
            font-weight: 700;
            color: var(--text);
        }

        .section-subtitle {
            text-align: center;
            color: var(--text-secondary);
            font-size: 17px;
            margin-bottom: 48px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: var(--font-h2);
            }
            .section-subtitle {
                font-size: 15px;
                margin-bottom: 32px;
            }
        }

        /* ========== REPORT CARDS GRID ========== */
        .report-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .report-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .report-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }

        .report-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
        }

        .report-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .report-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }

        .report-card .card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 5px 12px;
            border-radius: var(--radius-sm);
            letter-spacing: 0.5px;
            z-index: 2;
        }

        .report-card .card-body {
            padding: 22px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .report-card .card-match {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }

        .report-card .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .report-card .card-stats {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 12px;
            padding: 10px 0;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .report-card .stat-item {
            text-align: center;
            flex: 1;
            min-width: 50px;
        }

        .report-card .stat-value {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
        }

        .report-card .stat-label {
            font-size: 11px;
            color: var(--text-secondary);
            margin-top: 2px;
        }

        .report-card .card-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
        }

        .report-card .card-link {
            display: inline-block;
            font-weight: 600;
            font-size: 14px;
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition);
            align-self: flex-start;
        }

        .report-card .card-link:hover {
            color: var(--accent-hover);
            text-decoration: underline;
        }

        .report-card .card-link i {
            margin-left: 4px;
            font-size: 12px;
            transition: transform var(--transition);
        }

        .report-card .card-link:hover i {
            transform: translateX(3px);
        }

        @media (max-width: 1024px) {
            .report-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }

        @media (max-width: 640px) {
            .report-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .report-card .card-title {
                font-size: 16px;
            }
        }

        /* ========== DEEP ANALYSIS ========== */
        .deep-analysis {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .deep-analysis .analysis-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            aspect-ratio: 4 / 3;
        }

        .deep-analysis .analysis-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .deep-analysis .analysis-text h3 {
            font-size: var(--font-h3);
            margin-bottom: 16px;
            color: var(--text);
        }

        .deep-analysis .analysis-text p {
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 14px;
            font-size: 15px;
        }

        .deep-analysis .highlight-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .deep-analysis .highlight-list li {
            padding: 8px 0 8px 28px;
            position: relative;
            color: var(--text);
            font-weight: 500;
            font-size: 15px;
        }

        .deep-analysis .highlight-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 14px;
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
        }

        @media (max-width: 768px) {
            .deep-analysis {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .deep-analysis .analysis-img {
                order: -1;
                aspect-ratio: 16 / 9;
            }
        }

        /* ========== PROCESS STEPS ========== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .process-step {
            text-align: center;
            padding: 30px 20px;
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            position: relative;
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .process-step:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        .process-step .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .process-step h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }

        .process-step p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        @media (max-width: 1024px) {
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .process-steps {
                grid-template-columns: 1fr;
            }
        }

        /* ========== STATS BANNER ========== */
        .stats-banner {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .stat-block {
            padding: 28px 16px;
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition);
        }

        .stat-block:hover {
            transform: translateY(-2px);
        }

        .stat-block .stat-number {
            font-size: 42px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .stat-block .stat-unit {
            font-size: 16px;
            font-weight: 400;
            color: var(--text-secondary);
        }

        .stat-block .stat-desc {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .stats-banner {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-block .stat-number {
                font-size: 32px;
            }
        }

        @media (max-width: 480px) {
            .stats-banner {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
        }

        /* ========== SCENARIO CARDS ========== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .scenario-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            box-shadow: var(--shadow-sm);
            border-left: 4px solid var(--accent);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .scenario-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        .scenario-card .scenario-icon {
            font-size: 32px;
            color: var(--accent);
            margin-bottom: 14px;
        }

        .scenario-card h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }

        .scenario-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        @media (max-width: 768px) {
            .scenario-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ========== TEAM ========== */
        .team-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .team-card {
            text-align: center;
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 24px 16px;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .team-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        .team-card .team-avatar {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            object-fit: cover;
            margin: 0 auto 14px;
            border: 3px solid var(--primary);
        }

        .team-card h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .team-card .team-role {
            font-size: 13px;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 8px;
        }

        .team-card .team-bio {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        @media (max-width: 1024px) {
            .team-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .team-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #FFFFFF;
            border-radius: var(--radius);
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--text);
            user-select: none;
            background: #FFFFFF;
            border: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition);
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question .faq-icon {
            font-size: 14px;
            color: var(--accent);
            transition: transform var(--transition);
            flex-shrink: 0;
            margin-left: 12px;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        .faq-answer p {
            color: var(--text-secondary);
            line-height: 1.7;
            font-size: 15px;
            margin: 0;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--primary);
            color: #fff;
            padding: 60px 0;
            text-align: center;
        }

        .cta-section h2 {
            color: #fff;
            font-size: var(--font-h3);
            margin-bottom: 12px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 16px;
            margin-bottom: 28px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        .cta-section .btn-primary {
            font-size: 17px;
            padding: 16px 40px;
        }

        /* ========== BOTTOM BAR ========== */
        .bottom-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            z-index: 999;
            background: var(--bg-dark);
            padding: 12px 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition);
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
        }

        .bottom-bar.visible {
            opacity: 1;
            pointer-events: auto;
        }

        .bottom-bar .bar-text {
            color: #fff;
            font-size: 15px;
            font-weight: 500;
            letter-spacing: 0.3px;
        }

        .bottom-bar .btn-primary {
            padding: 10px 28px;
            font-size: 14px;
        }

        @media (max-width: 640px) {
            .bottom-bar {
                flex-direction: column;
                gap: 10px;
                text-align: center;
                padding: 14px 16px;
            }
            .bottom-bar .bar-text {
                font-size: 13px;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: #B0B0B0;
            padding: 50px 0 24px;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: #B0B0B0;
            font-size: 14px;
            transition: color var(--transition);
            text-decoration: none;
        }

        .footer-col ul li a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .footer-social {
            display: flex;
            gap: 14px;
        }

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: #B0B0B0;
            font-size: 16px;
            transition: background var(--transition), color var(--transition);
            text-decoration: none;
        }

        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            text-decoration: none;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: #888;
        }

        .footer-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: #888;
            font-size: 13px;
            text-decoration: none;
            transition: color var(--transition);
        }

        .footer-links a:hover {
            color: #fff;
            text-decoration: underline;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== UTILITY ========== */
        .text-center {
            text-align: center;
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }

/* roulang page: category4 */
:root {
            --primary: #0F4C81;
            --primary-dark: #0A3A62;
            --primary-light: #1A5F9E;
            --accent: #FF8C00;
            --accent-hover: #E67A00;
            --bg: #FFFFFF;
            --bg-light: #F4F6F9;
            --bg-dark: #1A1A2E;
            --text: #1E1E1E;
            --text-secondary: #5A5A5A;
            --text-light: #FFFFFF;
            --border: #E5E5E5;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);
            --radius-sm: 4px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --transition: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-h2: 40px;
            --font-h3: 28px;
            --font-body: 16px;
            --font-small: 14px;
            --max-width: 1200px;
            --nav-height: 70px;
        }

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

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            color: var(--text);
            background: var(--bg);
            line-height: 1.75;
            font-size: var(--font-body);
            overflow-x: hidden;
            padding-top: 0;
            margin: 0;
        }

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

        a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

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

        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin-top: 0;
            color: var(--text);
            font-weight: 700;
        }

        h2 {
            font-size: var(--font-h2);
            line-height: 1.25;
        }
        h3 {
            font-size: var(--font-h3);
            line-height: 1.3;
        }

        /* ========== NAVIGATION ========== */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.75);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.3);
            transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
        }

        .site-nav.scrolled {
            background: #FFFFFF;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
            border-bottom: 1px solid var(--border);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .nav-logo:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }

        .nav-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            border-radius: var(--radius);
            transition: color var(--transition), background var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }

        .nav-links li a:hover {
            color: var(--primary);
            background: rgba(15, 76, 129, 0.06);
            text-decoration: none;
        }

        .nav-links li a.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(15, 76, 129, 0.08);
        }

        .nav-cta {
            display: inline-block;
            padding: 10px 24px;
            font-size: 14px;
            font-weight: 600;
            color: #fff !important;
            background: var(--accent);
            border-radius: var(--radius);
            border: none;
            transition: background var(--transition), transform var(--transition);
            white-space: nowrap;
            letter-spacing: 0.5px;
            text-decoration: none !important;
            margin-left: 8px;
        }

        .nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
            text-decoration: none !important;
            color: #fff !important;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text);
            padding: 8px;
            cursor: pointer;
        }

        /* ========== HERO ========== */
        .page-hero {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            margin-top: var(--nav-height);
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 76, 129, 0.85) 0%, rgba(10, 58, 98, 0.7) 100%);
            z-index: 1;
        }

        .page-hero .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 40px 0;
        }

        .page-hero .hero-content h1 {
            color: #fff;
            font-size: 42px;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 12px;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        }

        .page-hero .hero-subtitle {
            color: rgba(255, 255, 255, 0.9);
            font-size: 18px;
            line-height: 1.6;
            max-width: 650px;
            margin-bottom: 20px;
        }

        .page-hero .hero-cta-row {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-block;
            padding: 13px 32px;
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            background: var(--accent);
            border-radius: var(--radius);
            border: none;
            text-decoration: none;
            letter-spacing: 0.5px;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            color: #fff;
            text-decoration: none;
        }

        .btn-outline {
            display: inline-block;
            padding: 13px 32px;
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.7);
            border-radius: var(--radius);
            text-decoration: none;
            letter-spacing: 0.5px;
            transition: background var(--transition), border-color var(--transition), transform var(--transition);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
            color: #fff;
            text-decoration: none;
            transform: translateY(-2px);
        }

        .btn-secondary {
            display: inline-block;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            background: var(--primary);
            border-radius: var(--radius);
            border: none;
            text-decoration: none;
            letter-spacing: 0.5px;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
        }

        .btn-secondary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            color: #fff;
            text-decoration: none;
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 70px 0;
        }
        .section-light {
            background: var(--bg-light);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-light);
        }
        .section-dark h2,
        .section-dark h3 {
            color: #fff;
        }
        .section-dark .text-secondary {
            color: #b0b0b0;
        }
        .section-title {
            font-size: var(--font-h2);
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }
        .section-subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            margin-bottom: 36px;
            line-height: 1.6;
        }
        .text-secondary {
            color: var(--text-secondary);
        }

        /* ========== TIMELINE ========== */
        .timeline {
            position: relative;
            padding: 0;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 120px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--border);
            border-radius: 2px;
        }
        .timeline-item {
            display: flex;
            align-items: flex-start;
            gap: 40px;
            margin-bottom: 36px;
            position: relative;
            padding-left: 0;
        }
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        .timeline-date {
            flex: 0 0 120px;
            text-align: right;
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            padding-top: 6px;
            position: relative;
            white-space: nowrap;
        }
        .timeline-date::after {
            content: '';
            position: absolute;
            right: -46px;
            top: 10px;
            width: 14px;
            height: 14px;
            background: var(--accent);
            border-radius: 50%;
            border: 3px solid #fff;
            box-shadow: 0 0 0 3px var(--primary);
            z-index: 2;
        }
        .timeline-card {
            flex: 1;
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .timeline-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .timeline-card .card-tag {
            display: inline-block;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            background: rgba(255, 140, 0, 0.08);
            border-radius: var(--radius-sm);
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }
        .timeline-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
            line-height: 1.4;
        }
        .timeline-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        .timeline-card .card-meta {
            font-size: 13px;
            color: #999;
            margin-top: 10px;
        }

        /* ========== STATS ROW ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            padding: 24px 16px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition);
        }
        .stat-item:hover {
            box-shadow: var(--shadow-md);
        }
        .stat-number {
            font-size: 42px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .stat-number .accent-dot {
            color: var(--accent);
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.4;
        }

        /* ========== SERVICE CARDS ========== */
        .service-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .service-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition), transform var(--transition);
            text-align: center;
        }
        .service-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .service-card .card-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 16px;
            background: rgba(15, 76, 129, 0.06);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: var(--primary);
        }
        .service-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }
        .service-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        /* ========== INFO BLOCK ========== */
        .info-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .info-block.reverse {
            direction: rtl;
        }
        .info-block.reverse .info-text {
            direction: ltr;
        }
        .info-block .info-image {
            direction: ltr;
        }
        .info-block .info-image img {
            width: 100%;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            object-fit: cover;
            aspect-ratio: 16/10;
        }
        .info-text h3 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text);
        }
        .info-text p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
        }
        .info-text .highlight-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .info-text .highlight-list li {
            padding: 6px 0 6px 22px;
            position: relative;
            font-size: 15px;
            color: var(--text);
            line-height: 1.6;
        }
        .info-text .highlight-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 13px;
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 20px 0;
            cursor: pointer;
            transition: background var(--transition);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }
        .faq-item .faq-question {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .faq-item .faq-icon {
            font-size: 16px;
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            padding-top: 0;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 12px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--primary);
            padding: 56px 0;
            text-align: center;
            color: #fff;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 32px;
            margin-bottom: 10px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 16px;
            margin-bottom: 24px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn-primary {
            font-size: 16px;
            padding: 14px 40px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: #B0B0B0;
            padding: 48px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            padding-bottom: 32px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: #B0B0B0;
            font-size: 14px;
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        .footer-social {
            display: flex;
            gap: 14px;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: #B0B0B0;
            font-size: 16px;
            transition: background var(--transition), color var(--transition);
            text-decoration: none;
        }
        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            text-decoration: none;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 18px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
        }
        .footer-bottom .footer-links {
            display: flex;
            gap: 16px;
        }
        .footer-bottom .footer-links a {
            color: #B0B0B0;
            font-size: 13px;
            text-decoration: none;
        }
        .footer-bottom .footer-links a:hover {
            color: var(--accent);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .info-block {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .info-block.reverse {
                direction: ltr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .timeline::before {
                left: 90px;
            }
            .timeline-date {
                flex: 0 0 90px;
                font-size: 13px;
            }
            .timeline-date::after {
                right: -36px;
            }
            .timeline-item {
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --font-h2: 28px;
                --font-h3: 22px;
                --nav-height: 60px;
            }
            .page-hero {
                min-height: 260px;
            }
            .page-hero .hero-content h1 {
                font-size: 28px;
            }
            .page-hero .hero-subtitle {
                font-size: 15px;
            }
            .section {
                padding: 44px 0;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                background: #fff;
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                box-shadow: var(--shadow-lg);
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            }
            .nav-links.show {
                display: flex;
            }
            .nav-links li a {
                display: block;
                width: 100%;
                padding: 12px 16px;
                font-size: 16px;
            }
            .nav-cta {
                display: none;
            }
            .nav-cta.mobile-show {
                display: block;
                margin: 8px 0 0;
                text-align: center;
            }
            .nav-toggle {
                display: block;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .stat-number {
                font-size: 30px;
            }
            .service-cards-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .timeline::before {
                left: 20px;
            }
            .timeline-item {
                flex-direction: column;
                gap: 8px;
                padding-left: 44px;
            }
            .timeline-date {
                flex: 0 0 auto;
                text-align: left;
                font-size: 14px;
                padding-top: 0;
            }
            .timeline-date::after {
                left: -30px;
                right: auto;
                top: 4px;
                width: 12px;
                height: 12px;
            }
            .timeline-card {
                padding: 18px 16px;
            }
            .timeline-card h3 {
                font-size: 17px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 24px;
            }
            .btn-primary,
            .btn-outline,
            .btn-secondary {
                padding: 10px 22px;
                font-size: 14px;
            }
        }

        @media (max-width: 520px) {
            .page-hero {
                min-height: 220px;
            }
            .page-hero .hero-content h1 {
                font-size: 24px;
            }
            .stats-row {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .stat-number {
                font-size: 26px;
            }
            .timeline::before {
                left: 12px;
            }
            .timeline-item {
                padding-left: 34px;
            }
            .timeline-date::after {
                left: -24px;
                width: 10px;
                height: 10px;
            }
            .section-title {
                font-size: 24px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #0F4C81;
            --primary-dark: #0A3A62;
            --primary-light: #1A5F9E;
            --accent: #FF8C00;
            --accent-hover: #E67A00;
            --bg: #FFFFFF;
            --bg-light: #F4F6F9;
            --bg-dark: #1A1A2E;
            --text: #1E1E1E;
            --text-secondary: #5A5A5A;
            --text-light: #FFFFFF;
            --border: #E5E5E5;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);
            --radius-sm: 4px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --transition: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-hero: 56px;
            --font-h2: 40px;
            --font-h3: 28px;
            --font-body: 16px;
            --font-small: 14px;
            --max-width: 1200px;
            --nav-height: 70px;
        }

        @media (max-width: 768px) {
            :root {
                --font-hero: 36px;
                --font-h2: 28px;
                --font-h3: 22px;
            }
        }

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

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            color: var(--text);
            background: var(--bg);
            line-height: 1.75;
            font-size: var(--font-body);
            overflow-x: hidden;
            padding-top: 0;
            margin: 0;
        }

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

        a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

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

        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== NAVIGATION ========== */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.75);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.3);
            transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
        }

        .site-nav.scrolled {
            background: #FFFFFF;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
            border-bottom: 1px solid var(--border);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .nav-logo:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }

        .nav-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            border-radius: var(--radius);
            transition: color var(--transition), background var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }

        .nav-links li a:hover {
            color: var(--primary);
            background: rgba(15, 76, 129, 0.06);
            text-decoration: none;
        }

        .nav-links li a.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(15, 76, 129, 0.08);
        }

        .nav-cta {
            display: inline-block;
            padding: 10px 24px;
            font-size: 14px;
            font-weight: 600;
            color: #fff !important;
            background: var(--accent);
            border-radius: var(--radius);
            border: none;
            transition: background var(--transition), transform var(--transition);
            white-space: nowrap;
            letter-spacing: 0.5px;
            text-decoration: none !important;
            margin-left: 8px;
        }

        .nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
            text-decoration: none !important;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text);
            padding: 8px;
            cursor: pointer;
            border-radius: var(--radius);
            transition: background var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(0, 0, 0, 0.05);
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                background: #FFFFFF;
                flex-direction: column;
                padding: 16px 20px;
                box-shadow: var(--shadow-lg);
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
                gap: 4px;
                z-index: 1001;
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links li a {
                display: block;
                padding: 12px 16px;
                width: 100%;
                text-align: left;
                font-size: 16px;
            }

            .nav-cta {
                display: none;
            }

            .nav-cta-mobile {
                display: block;
                width: 100%;
                text-align: center;
                margin-top: 8px;
                padding: 12px 24px;
                font-size: 15px;
                font-weight: 600;
                color: #fff !important;
                background: var(--accent);
                border-radius: var(--radius);
                text-decoration: none !important;
            }

            .nav-toggle {
                display: block;
            }
        }

        @media (min-width: 1025px) {
            .nav-cta-mobile {
                display: none;
            }
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            min-height: 65vh;
            background: linear-gradient(135deg, rgba(15, 76, 129, 0.88) 0%, rgba(10, 58, 98, 0.75) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            display: flex;
            align-items: center;
            padding-top: var(--nav-height);
            margin-top: 0;
        }

        .hero-section .hero-content {
            max-width: 700px;
            color: var(--text-light);
            padding: 60px 0;
        }

        .hero-section .hero-badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 20px;
            text-transform: uppercase;
        }

        .hero-section h1 {
            font-size: var(--font-hero);
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 18px;
            color: #fff;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        }

        .hero-section .hero-subtitle {
            font-size: 19px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 32px;
            max-width: 560px;
        }

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

        .btn {
            display: inline-block;
            padding: 14px 32px;
            font-size: 16px;
            font-weight: 600;
            border-radius: var(--radius);
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            letter-spacing: 0.5px;
            text-align: center;
            text-decoration: none !important;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.7);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
        }

        .btn-lg {
            padding: 16px 40px;
            font-size: 18px;
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 70px 0;
        }

        .section-alt {
            background: var(--bg-light);
        }

        .section-dark {
            background: var(--bg-dark);
            color: var(--text-light);
        }

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

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

        .section-header .section-tag {
            display: inline-block;
            color: var(--accent);
            font-weight: 600;
            font-size: 14px;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-header .section-desc {
            color: var(--text-secondary);
            font-size: 17px;
            max-width: 650px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .section-dark .section-header h2 {
            color: #fff;
        }

        .section-dark .section-header .section-desc {
            color: #B0B0B0;
        }

        /* ========== ASYMMETRIC GRID - ANALYST CARDS ========== */
        .analyst-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 24px;
        }

        .analyst-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            position: relative;
        }

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

        .analyst-card.col-8 {
            grid-column: span 8;
        }

        .analyst-card.col-4 {
            grid-column: span 4;
        }

        .analyst-card.col-6 {
            grid-column: span 6;
        }

        .analyst-card.col-5 {
            grid-column: span 5;
        }

        .analyst-card.col-7 {
            grid-column: span 7;
        }

        .analyst-card.col-12 {
            grid-column: span 12;
        }

        .analyst-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 4/3;
        }

        .analyst-card.col-8 .card-img-wrap {
            aspect-ratio: 16/9;
        }

        .analyst-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .analyst-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }

        .analyst-card .card-img-wrap .img-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
            padding: 20px;
            color: #fff;
        }

        .analyst-card .card-body {
            padding: 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .analyst-card .analyst-name {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
            line-height: 1.3;
        }

        .analyst-card .analyst-role {
            font-size: 14px;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }

        .analyst-card .analyst-bio {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }

        .analyst-card .analyst-stats {
            display: flex;
            gap: 20px;
            margin-top: 14px;
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
            flex-wrap: wrap;
        }

        .analyst-card .stat-item {
            text-align: center;
        }

        .analyst-card .stat-item .stat-num {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }

        .analyst-card .stat-item .stat-label {
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 2px;
        }

        .analyst-card.featured {
            border-left: 4px solid var(--accent);
        }

        .analyst-card .card-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-top: 10px;
        }

        .tag {
            display: inline-block;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 500;
            border-radius: 20px;
            background: rgba(15, 76, 129, 0.08);
            color: var(--primary);
        }

        .tag-accent {
            background: rgba(255, 140, 0, 0.1);
            color: var(--accent);
        }

        @media (max-width: 768px) {

            .analyst-card.col-8,
            .analyst-card.col-4,
            .analyst-card.col-6,
            .analyst-card.col-5,
            .analyst-card.col-7,
            .analyst-card.col-12 {
                grid-column: span 12;
            }

            .analyst-card .card-img-wrap {
                aspect-ratio: 16/9 !important;
            }

            .analyst-grid {
                gap: 16px;
            }
        }

        /* ========== TOOL CARDS ========== */
        .tool-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .tool-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 28px 24px;
            transition: all var(--transition);
            border: 1px solid transparent;
            text-align: center;
        }

        .tool-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border-light);
        }

        .tool-card .tool-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(15, 76, 129, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 26px;
            color: var(--primary);
            transition: all var(--transition);
        }

        .tool-card:hover .tool-icon {
            background: var(--primary);
            color: #fff;
        }

        .tool-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }

        .tool-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        @media (max-width: 768px) {
            .tool-cards-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== PROCESS STEPS ========== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .process-step {
            text-align: center;
            position: relative;
            padding: 20px;
        }

        .process-step .step-number {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            position: relative;
            z-index: 2;
        }

        .process-step h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
        }

        .process-step p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .process-step::after {
            content: '';
            position: absolute;
            top: 45px;
            left: 60%;
            width: 80%;
            height: 2px;
            background: var(--border);
            z-index: 1;
        }

        .process-step:last-child::after {
            display: none;
        }

        @media (max-width: 768px) {
            .process-steps {
                grid-template-columns: 1fr;
            }

            .process-step::after {
                display: none;
            }
        }

        /* ========== STATS BAR ========== */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .stat-block {
            padding: 24px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .stat-block .stat-big {
            font-size: 42px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .stat-block .stat-desc {
            font-size: 14px;
            color: #B0B0B0;
            line-height: 1.5;
        }

        @media (max-width: 768px) {
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
            }

            .stat-block .stat-big {
                font-size: 32px;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            margin-bottom: 12px;
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text);
            background: #fff;
            border: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition);
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question .faq-icon {
            font-size: 14px;
            transition: transform var(--transition);
            color: var(--accent);
            flex-shrink: 0;
            margin-left: 12px;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 18px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 60px 0;
            text-align: center;
            color: #fff;
        }

        .cta-section h2 {
            font-size: var(--font-h3);
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }

        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 24px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: #B0B0B0;
            padding: 50px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 30px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: #B0B0B0;
            font-size: 14px;
            transition: color var(--transition);
            text-decoration: none;
        }

        .footer-col ul li a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: #B0B0B0;
            font-size: 16px;
            transition: all var(--transition);
            text-decoration: none;
        }

        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            text-decoration: none;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
        }

        .footer-bottom .footer-links {
            display: flex;
            gap: 16px;
        }

        .footer-bottom .footer-links a {
            color: #B0B0B0;
            font-size: 13px;
            text-decoration: none;
            transition: color var(--transition);
        }

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

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }

            .hero-section {
                min-height: 50vh;
                text-align: center;
            }

            .hero-section .hero-content {
                padding: 40px 0;
                margin: 0 auto;
            }

            .hero-section .hero-buttons {
                justify-content: center;
            }

            .hero-section .hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }

            .hero-section h1 {
                font-size: 32px;
            }

            .btn {
                padding: 12px 24px;
                font-size: 14px;
            }
        }

        @media (max-width: 520px) {
            .hero-section h1 {
                font-size: 28px;
            }

            .hero-section .hero-subtitle {
                font-size: 16px;
            }

            .section-header h2 {
                font-size: 24px;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #0F4C81;
            --primary-dark: #0A3A62;
            --primary-light: #1A5F9E;
            --accent: #FF8C00;
            --accent-hover: #E67A00;
            --bg: #FFFFFF;
            --bg-light: #F4F6F9;
            --bg-dark: #1A1A2E;
            --text: #1E1E1E;
            --text-secondary: #5A5A5A;
            --text-light: #FFFFFF;
            --border: #E5E5E5;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);
            --radius-sm: 4px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --transition: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-h2: 40px;
            --font-h3: 28px;
            --font-body: 16px;
            --font-small: 14px;
            --max-width: 1200px;
            --nav-height: 70px;
        }

        @media (max-width: 768px) {
            :root {
                --font-h2: 28px;
                --font-h3: 22px;
            }
        }

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

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            color: var(--text);
            background: var(--bg);
            line-height: 1.75;
            font-size: var(--font-body);
            overflow-x: hidden;
            padding-top: 0;
            margin: 0;
        }

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

        a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

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

        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== NAVIGATION ========== */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.75);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.3);
            transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
        }

        .site-nav.scrolled {
            background: #FFFFFF;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
            border-bottom: 1px solid var(--border);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .nav-logo:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }

        .nav-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            border-radius: var(--radius);
            transition: color var(--transition), background var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }

        .nav-links li a:hover {
            color: var(--primary);
            background: rgba(15, 76, 129, 0.06);
            text-decoration: none;
        }

        .nav-links li a.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(15, 76, 129, 0.08);
        }

        .nav-cta {
            display: inline-block;
            padding: 10px 24px;
            font-size: 14px;
            font-weight: 600;
            color: #fff !important;
            background: var(--accent);
            border-radius: var(--radius);
            border: none;
            transition: background var(--transition), transform var(--transition);
            white-space: nowrap;
            letter-spacing: 0.5px;
            text-decoration: none !important;
            margin-left: 8px;
        }

        .nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
            text-decoration: none !important;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text);
            padding: 8px;
            cursor: pointer;
            transition: color var(--transition);
        }

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

        @media (max-width: 1024px) {
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                background: #FFFFFF;
                flex-direction: column;
                padding: 20px;
                gap: 4px;
                box-shadow: var(--shadow-lg);
                transform: translateY(-110%);
                opacity: 0;
                transition: transform var(--transition-slow), opacity var(--transition-slow);
                z-index: 999;
                border-bottom: 2px solid var(--border);
            }

            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
            }

            .nav-links li a {
                display: block;
                padding: 12px 16px;
                font-size: 16px;
                text-align: center;
                width: 100%;
            }

            .nav-cta {
                margin-left: 0;
                text-align: center;
                display: block;
                width: 100%;
                margin-top: 8px;
                border-radius: var(--radius);
            }

            .nav-toggle {
                display: block;
            }

            .nav-cta-desktop {
                display: none;
            }

            .nav-cta-mobile {
                display: block;
            }
        }

        @media (min-width: 1025px) {
            .nav-cta-desktop {
                display: inline-block;
            }

            .nav-cta-mobile {
                display: none;
            }
        }

        /* ========== HERO ========== */
        .hero-contact {
            position: relative;
            min-height: 55vh;
            background: linear-gradient(135deg, rgba(15, 76, 129, 0.85) 0%, rgba(10, 58, 98, 0.9) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 120px 20px 80px;
            margin-top: 0;
        }

        .hero-contact .hero-content {
            max-width: 750px;
            color: #fff;
        }

        .hero-contact .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.18);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 1px;
            margin-bottom: 20px;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.25);
        }

        .hero-contact h1 {
            font-size: 48px;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 16px;
            color: #fff;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
            letter-spacing: 1px;
        }

        .hero-contact .hero-subtitle {
            font-size: 18px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 0;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        @media (max-width: 768px) {
            .hero-contact h1 {
                font-size: 32px;
            }

            .hero-contact .hero-subtitle {
                font-size: 15px;
            }

            .hero-contact {
                min-height: 45vh;
                padding: 100px 20px 60px;
            }
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 72px 0;
        }

        .section-light {
            background: var(--bg-light);
        }

        .section-title {
            font-size: var(--font-h2);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.25;
        }

        .section-subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            margin-bottom: 40px;
            line-height: 1.6;
            max-width: 650px;
        }

        .section-title.centered,
        .section-subtitle.centered {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }

        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }

            .section-title {
                font-size: 26px;
            }

            .section-subtitle {
                font-size: 15px;
                margin-bottom: 28px;
            }
        }

        /* ========== CONTACT FORM AREA ========== */
        .contact-form-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 40px 36px;
            transition: box-shadow var(--transition);
        }

        .contact-form-card:hover {
            box-shadow: var(--shadow-lg);
        }

        .contact-form-card .form-label {
            font-weight: 600;
            font-size: 14px;
            color: var(--text);
            margin-bottom: 6px;
            display: block;
        }

        .contact-form-card input,
        .contact-form-card select,
        .contact-form-card textarea {
            width: 100%;
            border-radius: var(--radius);
            border: 1px solid #D1D5DB;
            padding: 12px 16px;
            font-size: 15px;
            color: var(--text);
            background: #FAFBFC;
            transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
            outline: none;
            margin-bottom: 0;
        }

        .contact-form-card input:focus,
        .contact-form-card select:focus,
        .contact-form-card textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.1);
            background: #fff;
            outline: none;
        }

        .contact-form-card textarea {
            resize: vertical;
            min-height: 130px;
        }

        .btn-submit {
            display: inline-block;
            padding: 14px 40px;
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            background: var(--accent);
            border: none;
            border-radius: var(--radius);
            cursor: pointer;
            letter-spacing: 0.5px;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            width: 100%;
            text-align: center;
        }

        .btn-submit:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        .btn-submit:active {
            transform: translateY(0);
            box-shadow: var(--shadow-md);
        }

        /* ========== CONTACT INFO CARD ========== */
        .info-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 36px 32px;
            height: 100%;
            transition: box-shadow var(--transition);
        }

        .info-card:hover {
            box-shadow: var(--shadow-lg);
        }

        .info-card .info-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-light);
        }

        .info-card .info-item:last-child {
            border-bottom: none;
        }

        .info-card .info-icon {
            width: 44px;
            height: 44px;
            background: rgba(15, 76, 129, 0.08);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
        }

        .info-card .info-text h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 4px 0;
        }

        .info-card .info-text p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        .info-card .social-row {
            display: flex;
            gap: 12px;
            margin-top: 20px;
            flex-wrap: wrap;
        }

        .info-card .social-row a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(15, 76, 129, 0.06);
            color: var(--primary);
            font-size: 18px;
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }

        .info-card .social-row a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
            text-decoration: none;
        }

        /* ========== ADVANTAGE CARDS ========== */
        .advantage-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .advantage-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition), transform var(--transition);
            text-align: center;
        }

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

        .advantage-card .adv-icon {
            width: 56px;
            height: 56px;
            background: rgba(15, 76, 129, 0.07);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            color: var(--primary);
            font-size: 24px;
        }

        .advantage-card h4 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text);
        }

        .advantage-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        @media (max-width: 768px) {
            .advantage-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ========== PROCESS STEPS ========== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .process-step {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .process-step .step-number {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 22px;
            font-weight: 700;
            margin: 0 auto 16px;
            position: relative;
            z-index: 2;
        }

        .process-step h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text);
        }

        .process-step p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        .process-steps::before {
            content: '';
            position: absolute;
            top: 28px;
            left: 12%;
            width: 76%;
            height: 2px;
            background: var(--border);
            z-index: 0;
        }

        @media (max-width: 768px) {
            .process-steps {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .process-steps::before {
                display: none;
            }

            .process-step {
                text-align: left;
                display: flex;
                align-items: flex-start;
                gap: 16px;
            }

            .process-step .step-number {
                margin: 0;
                flex-shrink: 0;
                width: 44px;
                height: 44px;
                font-size: 18px;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #FFFFFF;
            border-radius: var(--radius);
            padding: 22px 24px;
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            cursor: pointer;
            transition: box-shadow var(--transition), border-color var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border);
        }

        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 16px;
            color: var(--text);
            gap: 12px;
        }

        .faq-item .faq-question i {
            color: var(--primary);
            font-size: 14px;
            transition: transform var(--transition);
        }

        .faq-item .faq-answer {
            margin-top: 12px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        /* ========== CTA BANNER ========== */
        .cta-banner {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            box-shadow: var(--shadow-lg);
        }

        .cta-banner h3 {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }

        .cta-banner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 24px;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }

        .btn-cta-large {
            display: inline-block;
            padding: 15px 42px;
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            background: var(--accent);
            border: none;
            border-radius: var(--radius);
            cursor: pointer;
            letter-spacing: 0.5px;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            text-decoration: none !important;
        }

        .btn-cta-large:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 140, 0, 0.35);
            text-decoration: none !important;
            color: #fff;
        }

        @media (max-width: 768px) {
            .cta-banner {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }

            .cta-banner h3 {
                font-size: 24px;
            }
        }

        /* ========== SCENARIO CARDS ========== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .scenario-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition), transform var(--transition);
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }

        .scenario-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .scenario-card .sc-icon {
            width: 48px;
            height: 48px;
            background: rgba(255, 140, 0, 0.1);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 20px;
            flex-shrink: 0;
        }

        .scenario-card h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text);
        }

        .scenario-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        @media (max-width: 768px) {
            .scenario-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .scenario-card {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* ========== STATS BAR ========== */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .stat-item {
            padding: 24px;
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }

        .stat-item .stat-number {
            font-size: 40px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .stat-item .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .stat-item .stat-number {
                font-size: 30px;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: #B0B0B0;
            padding: 56px 0 28px;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: #B0B0B0;
            font-size: 14px;
            transition: color var(--transition);
            text-decoration: none;
        }

        .footer-col ul li a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .footer-social {
            display: flex;
            gap: 10px;
        }

        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: #B0B0B0;
            font-size: 16px;
            transition: background var(--transition), color var(--transition);
        }

        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            text-decoration: none;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: #888;
        }

        .footer-bottom .footer-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom .footer-links a {
            color: #888;
            font-size: 13px;
            text-decoration: none;
            transition: color var(--transition);
        }

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

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ========== ANIMATIONS ========== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-on-scroll {
            animation: fadeInUp 0.6s ease forwards;
        }

        /* ========== RESPONSIVE FINE-TUNING ========== */
        @media (max-width: 1024px) {
            .contact-form-card {
                padding: 28px 20px;
            }

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

        @media (max-width: 640px) {
            .hero-contact h1 {
                font-size: 26px;
            }

            .section {
                padding: 32px 0;
            }

            .container-custom {
                padding: 0 16px;
            }

            .contact-form-card {
                padding: 20px 16px;
            }

            .info-card {
                padding: 20px 16px;
            }

            .btn-submit {
                padding: 12px 24px;
                font-size: 15px;
            }
        }