/* roulang page: index */
:root {
            --primary: #1a2f4a;
            --primary-light: #243d5e;
            --primary-dark: #0f1e33;
            --accent: #c8963e;
            --accent-light: #d9ae5f;
            --accent-dark: #a67a2e;
            --bg-white: #ffffff;
            --bg-light: #f6f7f9;
            --bg-cream: #faf8f5;
            --bg-dark: #0f1a28;
            --text-dark: #1a1a1a;
            --text-body: #3a3a3a;
            --text-muted: #6b7280;
            --text-light: #9ca3af;
            --text-white: #f0f0f0;
            --border: #e2e5ea;
            --border-light: #eef0f3;
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.15);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-mono: 'SF Mono', 'Consolas', 'Monaco', monospace;
            --max-width: 1240px;
            --nav-height: 68px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--bg-white);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-width: 320px;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 3px;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 3px;
        }

        input {
            font-family: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-dark);
            font-weight: 700;
            line-height: 1.3;
            margin-top: 0;
        }

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

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            height: 100%;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            z-index: 1001;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 20px;
            letter-spacing: 1px;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--accent);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .main-nav>li {
            position: relative;
        }
        .main-nav>li>a {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 10px 16px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .main-nav>li>a:hover {
            color: var(--accent);
            background: rgba(200, 150, 62, 0.06);
        }
        .main-nav>li>a.active {
            color: var(--accent);
            background: rgba(200, 150, 62, 0.1);
            font-weight: 700;
        }
        .main-nav>li>a .fa-chevron-down {
            font-size: 0.65rem;
            transition: transform var(--transition);
        }
        .main-nav>li:hover>a .fa-chevron-down {
            transform: rotate(180deg);
        }

        /* Mega dropdown */
        .mega-dropdown {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            padding: 24px 20px;
            min-width: 520px;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: all var(--transition-slow);
            z-index: 999;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            border: 1px solid var(--border-light);
        }
        .main-nav>li:hover .mega-dropdown {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(0);
        }
        .mega-dropdown .mega-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 14px;
            border-radius: var(--radius);
            transition: all var(--transition);
            cursor: pointer;
            text-decoration: none;
            color: inherit;
        }
        .mega-dropdown .mega-item:hover {
            background: var(--bg-light);
            transform: translateX(3px);
        }
        .mega-dropdown .mega-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--accent);
            font-size: 1rem;
        }
        .mega-dropdown .mega-info h4 {
            font-size: 0.9rem;
            margin: 0 0 3px;
            color: var(--text-dark);
        }
        .mega-dropdown .mega-info p {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.4;
        }

        /* Mobile toggle */
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            z-index: 1001;
            padding: 8px;
            background: none;
            border: none;
        }
        .mobile-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--primary);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .mobile-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .mobile-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .mobile-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* Mobile nav */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: #fff;
            z-index: 998;
            padding: 20px;
            overflow-y: auto;
            flex-direction: column;
            gap: 8px;
            border-top: 1px solid var(--border-light);
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav a {
            display: block;
            padding: 14px 18px;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
            border-radius: var(--radius);
            transition: all var(--transition);
            text-decoration: none;
        }
        .mobile-nav a:hover,
        .mobile-nav a.active {
            background: rgba(200, 150, 62, 0.1);
            color: var(--accent);
        }
        .mobile-nav .mobile-sub {
            padding-left: 20px;
        }
        .mobile-nav .mobile-sub a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            padding: 10px 16px;
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            min-height: 580px;
            display: flex;
            align-items: center;
            background: linear-gradient(160deg, #0f1e33 0%, #1a2f4a 30%, #1a3555 60%, #0f1e33 100%);
            overflow: hidden;
        }
        .hero-bg-img {
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.22;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(200, 150, 62, 0.12) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 40%, rgba(255, 255, 255, 0.04) 0%, transparent 50%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 60px 20px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .hero-text {
            color: #fff;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(200, 150, 62, 0.2);
            color: var(--accent-light);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 18px;
            border: 1px solid rgba(200, 150, 62, 0.3);
        }
        .hero-text h1 {
            font-size: 3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 1px;
            line-height: 1.15;
        }
        .hero-text h1 span {
            color: var(--accent-light);
        }
        .hero-text .hero-desc {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 520px;
        }
        .hero-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            font-weight: 700;
            font-size: 0.95rem;
            border-radius: var(--radius);
            transition: all var(--transition);
            letter-spacing: 0.4px;
            text-decoration: none;
            cursor: pointer;
            border: 2px solid transparent;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
            box-shadow: 0 4px 14px rgba(200, 150, 62, 0.35);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 150, 62, 0.45);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.5);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }
        .hero-stats {
            display: flex;
            gap: 30px;
            flex-wrap: wrap;
        }
        .hero-stat {
            text-align: center;
            color: #fff;
        }
        .hero-stat .stat-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent-light);
            line-height: 1;
        }
        .hero-stat .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 70px 0;
        }
        .section-sm {
            padding: 50px 0;
        }
        .section-bg {
            background: var(--bg-light);
        }
        .section-cream {
            background: var(--bg-cream);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-dark h2,
        .section-dark h3 {
            color: #fff;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }
        .section-header .subtitle {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .section-header .accent-line {
            width: 50px;
            height: 3px;
            background: var(--accent);
            margin: 14px auto 0;
            border-radius: 2px;
        }

        /* ========== STATS CARDS ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
        }
        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }
        .stat-card .stat-icon {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 10px;
        }
        .stat-card .stat-value {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-card .stat-unit {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-muted);
        }
        .stat-card .stat-name {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ========== ADVANTAGE CARDS ========== */
        .adv-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .adv-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow);
            display: flex;
            gap: 18px;
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .adv-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
            border-color: var(--accent-light);
        }
        .adv-icon-circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(200, 150, 62, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--accent);
            font-size: 1.4rem;
        }
        .adv-info h3 {
            font-size: 1.1rem;
            margin-bottom: 6px;
        }
        .adv-info p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== CATEGORY CARDS ========== */
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .cat-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            text-decoration: none;
            color: inherit;
        }
        .cat-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            color: inherit;
        }
        .cat-card .cat-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .cat-card .cat-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .cat-card:hover .cat-img img {
            transform: scale(1.06);
        }
        .cat-card .cat-body {
            padding: 20px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .cat-card .cat-body h3 {
            font-size: 1.05rem;
            margin-bottom: 8px;
            font-weight: 700;
        }
        .cat-card .cat-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0 0 14px;
            flex: 1;
            line-height: 1.5;
        }
        .cat-card .cat-link {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }
        .cat-card:hover .cat-link {
            gap: 10px;
        }

        /* ========== BRAND STORY ========== */
        .story-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .story-img {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .story-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
            min-height: 360px;
        }
        .story-text h2 {
            font-size: 1.8rem;
            margin-bottom: 18px;
            font-weight: 800;
        }
        .story-text p {
            color: var(--text-body);
            line-height: 1.85;
            margin-bottom: 14px;
            font-size: 0.98rem;
        }
        .story-text .story-highlight {
            background: rgba(200, 150, 62, 0.08);
            border-left: 4px solid var(--accent);
            padding: 14px 20px;
            border-radius: 0 var(--radius) var(--radius) 0;
            font-weight: 600;
            color: var(--primary);
            margin: 18px 0;
            font-size: 0.95rem;
        }

        /* ========== MATCH CARDS ========== */
        .match-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .match-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .match-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }
        .match-card .match-img {
            height: 170px;
            overflow: hidden;
        }
        .match-card .match-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .match-card:hover .match-img img {
            transform: scale(1.05);
        }
        .match-card .match-body {
            padding: 18px 16px;
        }
        .match-card .match-teams {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 6px;
            color: var(--text-dark);
        }
        .match-card .match-info {
            font-size: 0.82rem;
            color: var(--text-muted);
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .match-card .match-tag {
            display: inline-block;
            background: rgba(200, 150, 62, 0.12);
            color: var(--accent-dark);
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-top: 8px;
        }

        /* ========== NEWS LIST ========== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .news-item {
            display: flex;
            gap: 20px;
            background: #fff;
            border-radius: var(--radius);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
            align-items: flex-start;
        }
        .news-item:hover {
            box-shadow: var(--shadow);
            border-color: var(--border);
            transform: translateX(3px);
        }
        .news-date {
            flex-shrink: 0;
            text-align: center;
            min-width: 56px;
            background: var(--bg-light);
            border-radius: var(--radius-sm);
            padding: 8px 6px;
        }
        .news-date .day {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }
        .news-date .month {
            font-size: 0.75rem;
            color: var(--text-muted);
            text-transform: uppercase;
        }
        .news-info h4 {
            font-size: 1rem;
            margin-bottom: 4px;
            font-weight: 700;
        }
        .news-info p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0 0 8px;
            line-height: 1.5;
        }
        .news-info .news-link {
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition);
        }
        .news-info .news-link:hover {
            gap: 8px;
            color: var(--accent-dark);
        }

        /* ========== TESTIMONIALS ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .testimonial-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 24px 22px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
        }
        .testimonial-card::before {
            content: '"';
            position: absolute;
            top: 10px;
            right: 18px;
            font-size: 4rem;
            color: rgba(200, 150, 62, 0.15);
            font-weight: 800;
            line-height: 1;
            pointer-events: none;
        }
        .testimonial-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }
        .testimonial-card .test-text {
            font-size: 0.9rem;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 14px;
            font-style: italic;
        }
        .testimonial-card .test-author {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--primary);
        }
        .testimonial-card .test-role {
            font-size: 0.78rem;
            color: var(--text-muted);
        }
        .test-stars {
            color: var(--accent);
            font-size: 0.85rem;
            margin-bottom: 8px;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border);
        }
        .faq-q {
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 700;
            font-size: 0.98rem;
            color: var(--text-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            user-select: none;
            transition: background var(--transition);
        }
        .faq-q:hover {
            background: var(--bg-light);
        }
        .faq-q .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: 0.75rem;
            transition: all var(--transition);
            color: var(--accent);
        }
        .faq-item.open .faq-q .faq-icon {
            transform: rotate(180deg);
            background: rgba(200, 150, 62, 0.15);
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.45s ease, padding 0.45s ease;
            padding: 0 22px;
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .faq-item.open .faq-a {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            text-align: center;
            padding: 60px 20px;
            border-radius: var(--radius-xl);
            margin: 0 20px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            z-index: 0;
        }
        .cta-section>* {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 10px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn {
            font-size: 1rem;
            padding: 15px 36px;
        }

        /* ========== PARTNERS ========== */
        .partner-row {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            gap: 30px;
            opacity: 0.7;
        }
        .partner-item {
            padding: 16px 24px;
            background: #fff;
            border-radius: var(--radius);
            font-weight: 700;
            color: var(--text-muted);
            font-size: 0.95rem;
            letter-spacing: 1px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .partner-item:hover {
            color: var(--accent);
            border-color: var(--accent-light);
            opacity: 1;
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-light);
            padding: 50px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 30px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 700;
        }
        .footer-col p {
            font-size: 0.85rem;
            line-height: 1.7;
            color: var(--text-light);
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: var(--text-light);
            font-size: 0.85rem;
            transition: color var(--transition);
            text-decoration: none;
        }
        .footer-col ul li a:hover {
            color: var(--accent-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 36px;
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: var(--text-light);
        }
        .footer-logo {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
            display: inline-block;
        }
        .footer-logo span {
            color: var(--accent-light);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1100px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 30px;
                text-align: center;
            }
            .hero-text .hero-desc {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-btns {
                justify-content: center;
            }
            .hero-stats {
                justify-content: center;
            }
            .hero-text h1 {
                font-size: 2.3rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .match-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .story-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .adv-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
            .hero-section {
                min-height: auto;
            }
            .hero-content {
                padding: 40px 16px;
            }
            .hero-text h1 {
                font-size: 1.8rem;
            }
            .hero-text .hero-desc {
                font-size: 0.95rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-card .stat-value {
                font-size: 2rem;
            }
            .adv-grid {
                grid-template-columns: 1fr;
            }
            .cat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .match-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .section {
                padding: 44px 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .news-item {
                flex-direction: column;
                gap: 10px;
            }
            .cta-section {
                margin: 0 12px;
                padding: 40px 16px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .hero-text h1 {
                font-size: 1.5rem;
            }
            .hero-stats {
                gap: 16px;
            }
            .hero-stat .stat-num {
                font-size: 1.6rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .cat-grid {
                grid-template-columns: 1fr;
            }
            .match-grid {
                grid-template-columns: 1fr;
            }
            .btn {
                padding: 11px 20px;
                font-size: 0.85rem;
            }
            .stat-card .stat-value {
                font-size: 1.6rem;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #0d1b2a;
            --color-primary-light: #1a3350;
            --color-accent: #d4a745;
            --color-accent-light: #e8c46c;
            --color-accent-dark: #b8912e;
            --color-success: #2d7d46;
            --color-danger: #c0392b;
            --color-bg: #f7f6f2;
            --color-bg-alt: #edebe3;
            --color-surface: #ffffff;
            --color-text: #1a1a2e;
            --color-text-soft: #5a5a6e;
            --color-text-muted: #8a8a9a;
            --color-border: #e0dcd0;
            --color-border-light: #eeece4;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 4px rgba(13, 27, 42, 0.06);
            --shadow-md: 0 4px 16px rgba(13, 27, 42, 0.10);
            --shadow-lg: 0 8px 32px rgba(13, 27, 42, 0.13);
            --shadow-xl: 0 16px 48px rgba(13, 27, 42, 0.16);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Segoe UI', system-ui, sans-serif;
            --transition-fast: 160ms ease;
            --transition-normal: 260ms ease;
            --transition-slow: 380ms cubic-bezier(0.25, 0.8, 0.25, 1.2);
            --max-width: 1200px;
            --header-height: 68px;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.72;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
        }
        a:focus-visible {
            outline: 3px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 3px;
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }
        button:focus-visible {
            outline: 3px solid var(--color-accent);
            outline-offset: 2px;
        }

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.3;
            color: var(--color-primary);
        }

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

        .grid-container {
            max-width: var(--max-width);
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .header-inner {
            max-width: var(--max-width);
            width: 100%;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none;
            color: var(--color-primary);
            transition: opacity var(--transition-fast);
        }
        .logo-wrap:hover {
            opacity: 0.85;
            color: var(--color-primary);
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            color: #fff;
            font-weight: 800;
            font-size: 1.25rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--color-primary);
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--color-accent);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0;
            list-style: none;
        }
        .main-nav>li {
            position: relative;
        }
        .main-nav>li>a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 15px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text);
            white-space: nowrap;
            transition: all var(--transition-fast);
            text-decoration: none;
        }
        .main-nav>li>a:hover,
        .main-nav>li>a.active {
            color: var(--color-accent-dark);
            background: rgba(212, 167, 69, 0.08);
        }
        .main-nav>li>a.active {
            font-weight: 600;
            background: rgba(212, 167, 69, 0.13);
        }
        .main-nav>li>a i.fa-chevron-down {
            font-size: 0.7rem;
            transition: transform var(--transition-fast);
            opacity: 0.6;
        }
        .main-nav>li.has-mega:hover>a i.fa-chevron-down {
            transform: rotate(180deg);
        }

        /* Mega Panel */
        .mega-panel {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            border: 1px solid var(--color-border-light);
            padding: 20px;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            min-width: 520px;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: all var(--transition-normal);
            z-index: 999;
        }
        .has-mega:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(4px);
        }
        .mega-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 14px;
            border-radius: var(--radius-md);
            text-decoration: none;
            color: var(--color-text);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .mega-item:hover {
            background: var(--color-bg);
            color: var(--color-text);
        }
        .mega-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: var(--color-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1rem;
            color: var(--color-accent-dark);
        }
        .mega-info h4 {
            font-size: 0.9rem;
            font-weight: 600;
            margin: 0 0 2px;
            color: var(--color-primary);
        }
        .mega-info p {
            font-size: 0.78rem;
            color: var(--color-text-soft);
            margin: 0;
            line-height: 1.4;
        }

        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            font-size: 1.3rem;
            color: var(--color-primary);
            background: var(--color-bg);
            flex-shrink: 0;
        }

        /* ========== PAGE HERO ========== */
        .page-hero {
            position: relative;
            background: var(--color-primary);
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 72px 0 64px;
            color: #fff;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.88) 0%, rgba(13, 27, 42, 0.72) 50%, rgba(26, 51, 80, 0.78) 100%);
            z-index: 1;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb-trail {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb-trail a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .breadcrumb-trail a:hover {
            color: var(--color-accent-light);
        }
        .breadcrumb-trail .sep {
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.7rem;
        }
        .breadcrumb-trail .current {
            color: var(--color-accent-light);
            font-weight: 500;
        }
        .page-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .page-hero .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            line-height: 1.7;
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: 60px 0;
        }
        .section-bg-alt {
            background: var(--color-bg-alt);
        }
        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }
        .section-header p {
            font-size: 1rem;
            color: var(--color-text-soft);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.65;
        }
        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--color-accent-dark);
            background: rgba(212, 167, 69, 0.12);
            padding: 5px 14px;
            border-radius: 20px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        /* ========== STRATEGY CARDS ========== */
        .strategy-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .strategy-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .strategy-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-accent);
        }
        .strategy-card .card-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, rgba(212, 167, 69, 0.15) 0%, rgba(212, 167, 69, 0.06) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.5rem;
            color: var(--color-accent-dark);
        }
        .strategy-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-primary);
        }
        .strategy-card p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            margin: 0;
            line-height: 1.55;
        }
        .strategy-card .card-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            font-size: 0.7rem;
            font-weight: 700;
            background: var(--color-accent);
            color: #fff;
            padding: 3px 10px;
            border-radius: 12px;
            letter-spacing: 0.03em;
        }

        /* ========== DEEP DIVE ========== */
        .deep-dive-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .deep-dive-image {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            aspect-ratio: 4/3;
            position: relative;
        }
        .deep-dive-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .deep-dive-content h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--color-primary);
        }
        .deep-dive-content p {
            color: var(--color-text-soft);
            margin-bottom: 14px;
            line-height: 1.75;
        }
        .deep-dive-content .highlight-box {
            background: rgba(212, 167, 69, 0.07);
            border-left: 4px solid var(--color-accent);
            padding: 16px 20px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: 18px 0;
            font-weight: 500;
            color: var(--color-primary);
            font-size: 0.95rem;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 24px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            text-decoration: none;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--color-accent);
            color: #fff;
            border: 2px solid var(--color-accent);
        }
        .btn-primary:hover {
            background: var(--color-accent-dark);
            border-color: var(--color-accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-border);
        }
        .btn-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent-dark);
            background: rgba(212, 167, 69, 0.04);
        }
        .btn-sm {
            padding: 7px 16px;
            font-size: 0.85rem;
            border-radius: var(--radius-sm);
        }

        /* ========== PRINCIPLES LIST ========== */
        .principles-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
            counter-reset: principle;
        }
        .principle-item {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 24px 22px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: all var(--transition-normal);
            position: relative;
            counter-increment: principle;
        }
        .principle-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .principle-num {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .principle-info h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--color-primary);
        }
        .principle-info p {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            margin: 0;
            line-height: 1.55;
        }

        /* ========== CASE CARDS ========== */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .case-card {
            background: var(--color-surface);
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-md);
            transition: all var(--transition-normal);
        }
        .case-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .case-card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .case-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .case-card:hover .case-card-img img {
            transform: scale(1.05);
        }
        .case-card-body {
            padding: 22px 20px;
        }
        .case-card-body h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-primary);
        }
        .case-card-body p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            margin: 0;
            line-height: 1.6;
        }
        .case-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 12px;
            background: rgba(45, 125, 70, 0.1);
            color: var(--color-success);
            margin-bottom: 8px;
        }

        /* ========== WARNING LIST ========== */
        .warning-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .warning-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            background: var(--color-surface);
            border-radius: var(--radius-md);
            padding: 20px;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
        }
        .warning-item:hover {
            border-color: var(--color-danger);
            background: #fefbfb;
        }
        .warning-icon {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(192, 57, 43, 0.1);
            color: var(--color-danger);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .warning-info h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 3px;
            color: var(--color-primary);
        }
        .warning-info p {
            font-size: 0.85rem;
            color: var(--color-text-soft);
            margin: 0;
            line-height: 1.5;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item.active {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--color-primary);
            background: none;
            border: none;
            cursor: pointer;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--color-accent-dark);
        }
        .faq-question i {
            transition: transform var(--transition-fast);
            font-size: 0.85rem;
            opacity: 0.5;
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            opacity: 1;
            color: var(--color-accent);
        }
        .faq-answer {
            padding: 0 20px 18px;
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.7;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--color-primary);
            background-image: url('assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 60px 0;
            text-align: center;
            color: #fff;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(13, 27, 42, 0.82);
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 500px;
            margin: 0 auto 24px;
            line-height: 1.6;
        }
        .btn-cta {
            background: var(--color-accent);
            color: #fff;
            border: none;
            font-size: 1rem;
            padding: 13px 30px;
            border-radius: var(--radius-md);
            font-weight: 700;
            letter-spacing: 0.03em;
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
        }
        .btn-cta:hover {
            background: var(--color-accent-light);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 8px 28px rgba(212, 167, 69, 0.35);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 24px;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }
        .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .footer-logo span {
            color: var(--color-accent-light);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: color var(--transition-fast);
            font-size: 0.88rem;
        }
        .footer-col ul li a:hover {
            color: var(--color-accent-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 18px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .strategy-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .principles-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .deep-dive-block {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .page-hero h1 {
                font-size: 2.1rem;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--color-surface);
                flex-direction: column;
                align-items: stretch;
                padding: 10px 16px 20px;
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                z-index: 998;
                gap: 4px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav>li>a {
                padding: 12px 14px;
                font-size: 0.95rem;
                border-radius: var(--radius-sm);
            }
            .mega-panel {
                position: static;
                transform: none;
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
                box-shadow: none;
                border: none;
                padding: 6px 0 6px 20px;
                grid-template-columns: 1fr;
                min-width: unset;
                display: none;
                background: transparent;
            }
            .has-mega.mega-open .mega-panel {
                display: grid;
            }
            .mobile-toggle {
                display: flex;
            }
            .strategy-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .principles-list {
                grid-template-columns: 1fr;
            }
            .case-grid {
                grid-template-columns: 1fr;
            }
            .warning-list {
                grid-template-columns: 1fr;
            }
            .page-hero {
                padding: 48px 0 40px;
            }
            .page-hero h1 {
                font-size: 1.7rem;
            }
            .section {
                padding: 40px 0;
            }
            .section-header h2 {
                font-size: 1.55rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }
            .deep-dive-image {
                aspect-ratio: 16/10;
            }
        }
        @media (max-width: 520px) {
            .strategy-grid {
                grid-template-columns: 1fr;
            }
            .page-hero h1 {
                font-size: 1.45rem;
            }
            .page-hero .hero-subtitle {
                font-size: 0.9rem;
            }
            .section-header h2 {
                font-size: 1.35rem;
            }
            .strategy-card {
                padding: 20px 16px;
            }
            .container {
                padding: 0 14px;
            }
            .header-inner {
                padding: 0 14px;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #1a3c5e;
            --color-primary-dark: #0f2640;
            --color-accent: #c8963e;
            --color-accent-light: #e0b866;
            --color-bg: #f7f8fa;
            --color-bg-alt: #eef1f5;
            --color-surface: #ffffff;
            --color-text: #1e293b;
            --color-text-soft: #5a6c7d;
            --color-text-muted: #8899aa;
            --color-border: #dde3ea;
            --color-border-light: #e8ecf1;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --transition-fast: 0.15s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
        }

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

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

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.3;
            color: var(--color-text);
        }

        p {
            margin: 0 0 1em;
            color: var(--color-text-soft);
        }

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

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none;
            color: var(--color-primary);
            transition: opacity var(--transition-fast);
        }
        .logo-wrap:hover {
            opacity: 0.85;
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            color: #fff;
            font-weight: 700;
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            letter-spacing: 1px;
        }

        .logo-text {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--color-accent);
        }

        /* Main Nav */
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }

        .main-nav>li {
            position: relative;
        }

        .main-nav>li>a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast), color var(--transition-fast);
            white-space: nowrap;
        }
        .main-nav>li>a:hover {
            background: var(--color-bg-alt);
            color: var(--color-primary);
        }
        .main-nav>li>a.active {
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
        }
        .main-nav>li>a.active:hover {
            background: var(--color-primary-dark);
        }

        .main-nav>li>a .fa-chevron-down {
            font-size: 10px;
            transition: transform var(--transition-fast);
        }
        .main-nav>li.has-mega:hover>a .fa-chevron-down {
            transform: rotate(180deg);
        }

        /* Mega Dropdown */
        .mega-dropdown {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(6px);
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            padding: 20px;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            min-width: 480px;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
            z-index: 999;
            border: 1px solid var(--color-border-light);
        }
        .main-nav>li.has-mega:hover .mega-dropdown {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(0);
        }

        .mega-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 14px;
            border-radius: var(--radius-md);
            text-decoration: none;
            color: var(--color-text);
            transition: background var(--transition-fast);
        }
        .mega-item:hover {
            background: var(--color-bg);
        }
        .mega-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: var(--color-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 16px;
            color: var(--color-primary);
        }
        .mega-info h4 {
            font-size: 14px;
            font-weight: 600;
            margin: 0 0 2px;
            color: var(--color-text);
        }
        .mega-info p {
            font-size: 12px;
            color: var(--color-text-muted);
            margin: 0;
        }

        /* Mobile Toggle */
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 26px;
            color: var(--color-text);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mobile-toggle:hover {
            background: var(--color-bg-alt);
        }

        /* ========== SECTION SPACING ========== */
        .section {
            padding: 60px 0;
        }
        .section-sm {
            padding: 40px 0;
        }
        .section-lg {
            padding: 80px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }
        .section-header h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 10px;
        }
        .section-header .subtitle {
            font-size: 16px;
            color: var(--color-text-soft);
            max-width: 620px;
            margin: 0 auto;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 8px;
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            padding: 80px 0;
            background: url('assets/images/backpic/back-2.webp') center/cover no-repeat;
            background-blend-mode: overlay;
            background-color: rgba(15, 38, 64, 0.78);
            color: #fff;
            text-align: center;
            overflow: hidden;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 38, 64, 0.5) 0%, rgba(15, 38, 64, 0.85) 100%);
            z-index: 1;
            pointer-events: none;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .page-banner h1 {
            font-size: 42px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .page-banner .banner-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.88);
            max-width: 680px;
            margin: 0 auto 20px;
            line-height: 1.6;
        }
        .page-banner .banner-meta {
            display: inline-flex;
            gap: 24px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            flex-wrap: wrap;
            justify-content: center;
        }
        .page-banner .banner-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* ========== CARDS ========== */
        .card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
            border: 1px solid var(--color-border-light);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
            background: var(--color-bg-alt);
        }
        .card-body {
            padding: 22px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text);
        }
        .card-body p {
            font-size: 14px;
            color: var(--color-text-soft);
            margin-bottom: 12px;
            flex: 1;
        }
        .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 20px;
            background: var(--color-bg-alt);
            color: var(--color-primary);
            margin-bottom: 10px;
            align-self: flex-start;
        }

        /* ========== BUTTONS ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-md);
            border: none;
            transition: all var(--transition-fast);
            cursor: pointer;
            text-decoration: none;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--color-primary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-accent {
            background: var(--color-accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: #b58632;
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
        }
        .btn-outline:hover {
            background: var(--color-primary);
            color: #fff;
        }
        .btn-ghost {
            background: transparent;
            color: var(--color-text-soft);
            padding: 8px 16px;
        }
        .btn-ghost:hover {
            color: var(--color-primary);
            background: var(--color-bg-alt);
        }
        .btn-sm {
            padding: 7px 16px;
            font-size: 13px;
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 17px;
        }

        /* ========== STAT CARDS ========== */
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 40px;
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 6px;
            letter-spacing: -1px;
        }
        .stat-number .accent {
            color: var(--color-accent);
        }
        .stat-label {
            font-size: 14px;
            color: var(--color-text-soft);
            font-weight: 500;
        }

        /* ========== DATA TABLE LIST ========== */
        .data-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .data-list-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--color-surface);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: box-shadow var(--transition-fast);
            flex-wrap: wrap;
        }
        .data-list-item:hover {
            box-shadow: var(--shadow-md);
        }
        .data-list-rank {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--color-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            color: var(--color-primary);
            flex-shrink: 0;
        }
        .data-list-rank.top {
            background: var(--color-accent);
            color: #fff;
        }
        .data-list-info {
            flex: 1;
            min-width: 150px;
        }
        .data-list-info h4 {
            font-size: 15px;
            font-weight: 600;
            margin: 0;
        }
        .data-list-info span {
            font-size: 12px;
            color: var(--color-text-muted);
        }
        .data-list-stat {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-primary);
            flex-shrink: 0;
        }

        /* ========== PROCESS / TIMELINE ========== */
        .process-row {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .process-step {
            flex: 1;
            min-width: 200px;
            max-width: 260px;
            text-align: center;
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 30px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            position: relative;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }
        .process-step:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .process-step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            font-weight: 700;
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
        }
        .process-step h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .process-step p {
            font-size: 13px;
            color: var(--color-text-muted);
            margin: 0;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: box-shadow var(--transition-fast);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 14px;
            transition: transform var(--transition-base);
            color: var(--color-text-muted);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--color-accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 20px 18px;
        }
        .faq-answer p {
            font-size: 14px;
            color: var(--color-text-soft);
            margin: 0;
            line-height: 1.7;
        }

        /* ========== CTA BLOCK ========== */
        .cta-block {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }
        .cta-block h2 {
            color: #fff;
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .cta-block p {
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 20px;
            font-size: 16px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-block .btn-accent {
            font-size: 16px;
            padding: 14px 32px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #141e2b;
            color: #bcc8d4;
            padding: 50px 0 24px;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-logo span {
            color: var(--color-accent-light);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            color: #8a9ab0;
            transition: color var(--transition-fast);
            font-size: 13px;
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            color: #6a7d90;
            font-size: 12px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .mega-dropdown {
                min-width: 360px;
                grid-template-columns: 1fr 1fr;
                gap: 6px;
                padding: 14px;
            }
            .page-banner h1 {
                font-size: 34px;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .process-row {
                gap: 16px;
            }
            .process-step {
                min-width: 150px;
                max-width: 220px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                gap: 12px;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--color-surface);
                flex-direction: column;
                padding: 12px 20px;
                box-shadow: var(--shadow-lg);
                border-bottom: 1px solid var(--color-border);
                max-height: 70vh;
                overflow-y: auto;
                gap: 2px;
                z-index: 999;
            }
            .main-nav.show {
                display: flex;
            }
            .main-nav>li {
                width: 100%;
            }
            .main-nav>li>a {
                width: 100%;
                padding: 12px 14px;
                font-size: 15px;
            }
            .mobile-toggle {
                display: block;
            }
            .mega-dropdown {
                position: static;
                transform: none;
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
                box-shadow: none;
                border: none;
                min-width: auto;
                grid-template-columns: 1fr;
                padding: 4px 0 4px 16px;
                display: none;
                background: transparent;
            }
            .main-nav>li.has-mega.open-mobile .mega-dropdown {
                display: grid;
            }
            .mega-item {
                padding: 10px 12px;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-number {
                font-size: 30px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .page-banner {
                padding: 50px 0;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .page-banner .banner-sub {
                font-size: 15px;
            }
            .section {
                padding: 40px 0;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .process-row {
                flex-direction: column;
                align-items: center;
            }
            .process-step {
                max-width: 100%;
                width: 100%;
            }
            .data-list-item {
                flex-wrap: wrap;
                gap: 10px;
            }
            .data-list-stat {
                font-size: 16px;
            }
            .cta-block {
                padding: 32px 20px;
            }
            .cta-block h2 {
                font-size: 22px;
            }
        }

        @media (max-width: 520px) {
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 18px 12px;
            }
            .stat-number {
                font-size: 26px;
            }
            .stat-label {
                font-size: 12px;
            }
            .page-banner h1 {
                font-size: 24px;
            }
            .page-banner .banner-meta {
                gap: 10px;
                font-size: 12px;
            }
            .card-body h3 {
                font-size: 16px;
            }
            .btn {
                padding: 9px 16px;
                font-size: 13px;
            }
            .btn-lg {
                padding: 12px 22px;
                font-size: 15px;
            }
            .mega-dropdown {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #0b1e33;
            --color-primary-light: #132d4a;
            --color-accent: #c49b4c;
            --color-accent-light: #d9b668;
            --color-accent-dark: #a37d34;
            --color-bg: #ffffff;
            --color-bg-alt: #f4f6f9;
            --color-bg-dark: #0b1e33;
            --color-text: #1a1a1a;
            --color-text-weak: #5f6b7a;
            --color-text-light: #8b95a3;
            --color-border: #e2e6ed;
            --color-border-light: #eef1f5;
            --color-white: #ffffff;
            --color-success: #2d8c5c;
            --color-warning: #e8a820;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(11, 30, 51, 0.06);
            --shadow-md: 0 4px 16px rgba(11, 30, 51, 0.08);
            --shadow-lg: 0 8px 32px rgba(11, 30, 51, 0.12);
            --shadow-xl: 0 16px 48px rgba(11, 30, 51, 0.16);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --max-width: 1240px;
            --header-height: 68px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

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

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

        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-primary);
            margin: 0;
        }

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

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none;
            color: var(--color-primary);
            transition: opacity var(--transition-fast);
        }
        .logo-wrap:hover {
            opacity: 0.85;
            color: var(--color-primary);
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 20px;
            letter-spacing: -1px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0.5px;
            white-space: nowrap;
            color: var(--color-primary);
        }
        .logo-text span {
            color: var(--color-accent);
        }

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

        .main-nav>li {
            position: relative;
        }

        .main-nav>li>a {
            display: flex;
            align-items: center;
            gap: 5px;
            padding: 10px 15px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            white-space: nowrap;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .main-nav>li>a:hover {
            background: var(--color-bg-alt);
            color: var(--color-primary);
        }
        .main-nav>li>a.active {
            background: var(--color-primary);
            color: var(--color-white);
            font-weight: 600;
        }
        .main-nav>li>a.active:hover {
            background: var(--color-primary-light);
            color: var(--color-white);
        }
        .main-nav>li>a i {
            font-size: 11px;
            transition: transform var(--transition-fast);
        }
        .main-nav>li.has-mega:hover>a i {
            transform: rotate(180deg);
        }

        /* Mega Panel */
        .mega-panel {
            position: absolute;
            top: calc(100% + 10px);
            left: 50%;
            transform: translateX(-50%) translateY(6px);
            background: var(--color-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            padding: 20px 16px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
            min-width: 680px;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: all var(--transition-base);
            z-index: 999;
            border: 1px solid var(--color-border-light);
        }
        .main-nav>li.has-mega:hover .mega-panel,
        .main-nav>li.has-mega:focus-within .mega-panel {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(0);
        }

        .mega-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px;
            border-radius: var(--radius-md);
            text-decoration: none;
            color: var(--color-text);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .mega-item:hover {
            background: var(--color-bg-alt);
            color: var(--color-primary);
        }
        .mega-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--color-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--color-accent);
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }
        .mega-item:hover .mega-icon {
            background: var(--color-primary);
            color: var(--color-accent-light);
        }
        .mega-info h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 3px;
            line-height: 1.3;
        }
        .mega-info p {
            font-size: 12px;
            color: var(--color-text-weak);
            margin: 0;
            line-height: 1.4;
        }

        /* Mobile Toggle */
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            background: transparent;
            cursor: pointer;
            z-index: 1001;
            transition: background var(--transition-fast);
        }
        .mobile-toggle:hover {
            background: var(--color-bg-alt);
        }
        .mobile-toggle span {
            width: 26px;
            height: 2.5px;
            background: var(--color-primary);
            border-radius: 3px;
            transition: all var(--transition-base);
            display: block;
        }
        .mobile-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .mobile-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .mobile-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            background: var(--color-primary) url('assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 80px 0 70px;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 30, 51, 0.88) 0%, rgba(11, 30, 51, 0.72) 50%, rgba(19, 45, 74, 0.78) 100%);
            z-index: 1;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 18px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--color-accent-light);
        }
        .breadcrumb .sep {
            font-size: 10px;
            opacity: 0.5;
        }
        .breadcrumb .current {
            color: var(--color-accent-light);
            font-weight: 500;
        }
        .page-banner h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--color-white);
            margin-bottom: 12px;
            letter-spacing: 1px;
        }
        .page-banner .banner-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 650px;
            line-height: 1.7;
        }
        .page-banner .banner-badge {
            display: inline-block;
            background: var(--color-accent);
            color: var(--color-primary);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 64px 0;
        }
        .section-sm {
            padding: 44px 0;
        }
        .section-alt {
            background: var(--color-bg-alt);
        }
        .section-dark {
            background: var(--color-bg-dark);
            color: var(--color-white);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--color-accent);
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .section-desc {
            font-size: 1.05rem;
            color: var(--color-text-weak);
            max-width: 700px;
            line-height: 1.7;
        }
        .section-dark .section-title {
            color: var(--color-white);
        }
        .section-dark .section-desc {
            color: rgba(255, 255, 255, 0.75);
        }

        /* ========== CARDS ========== */
        .card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            padding: 28px;
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }
        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: var(--color-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--color-accent);
            margin-bottom: 16px;
            flex-shrink: 0;
            transition: all var(--transition-base);
        }
        .card:hover .card-icon {
            background: var(--color-primary);
            color: var(--color-accent-light);
        }
        .card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-primary);
        }
        .card p {
            font-size: 0.95rem;
            color: var(--color-text-weak);
            line-height: 1.65;
            flex-grow: 1;
            margin: 0;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 14px;
            color: var(--color-accent-dark);
            margin-top: 14px;
            transition: all var(--transition-fast);
        }
        .card-link:hover {
            color: var(--color-accent);
            gap: 10px;
        }
        .card-link i {
            font-size: 12px;
        }

        /* Stat Card */
        .stat-card {
            text-align: center;
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            height: 100%;
        }
        .stat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1;
            margin-bottom: 6px;
            letter-spacing: -0.5px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            font-weight: 500;
        }
        .stat-unit {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text-weak);
        }

        /* ========== CONTENT BLOCK ========== */
        .content-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .content-block.reverse {
            direction: rtl;
        }
        .content-block.reverse>* {
            direction: ltr;
        }
        .content-block .content-img {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .content-block .content-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 4/3;
            transition: transform var(--transition-slow);
        }
        .content-block .content-img:hover img {
            transform: scale(1.04);
        }
        .content-block .content-text h2 {
            font-size: 1.7rem;
            margin-bottom: 16px;
        }
        .content-block .content-text p {
            color: var(--color-text-weak);
            margin-bottom: 12px;
            line-height: 1.8;
        }

        /* ========== INSIGHT LIST ========== */
        .insight-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .insight-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .insight-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .insight-card .insight-img {
            aspect-ratio: 16/10;
            overflow: hidden;
            position: relative;
        }
        .insight-card .insight-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .insight-card:hover .insight-img img {
            transform: scale(1.06);
        }
        .insight-card .insight-body {
            padding: 20px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        .insight-card .insight-date {
            font-size: 12px;
            color: var(--color-text-light);
            margin-bottom: 6px;
        }
        .insight-card h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-primary);
            line-height: 1.4;
        }
        .insight-card p {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            flex-grow: 1;
            margin-bottom: 12px;
            line-height: 1.6;
        }
        .insight-card .insight-link {
            font-weight: 600;
            font-size: 13px;
            color: var(--color-accent-dark);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: all var(--transition-fast);
        }
        .insight-card .insight-link:hover {
            color: var(--color-accent);
            gap: 8px;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-border);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-primary);
            background: transparent;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            transition: all var(--transition-fast);
            border: none;
            line-height: 1.5;
        }
        .faq-question:hover {
            color: var(--color-accent-dark);
        }
        .faq-question i {
            font-size: 14px;
            color: var(--color-text-light);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--color-accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
        }
        .faq-answer-inner {
            padding: 0 22px 20px;
            color: var(--color-text-weak);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            border-radius: var(--radius-xl);
            padding: 52px 40px;
            text-align: center;
            color: var(--color-white);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 30% 40%, rgba(196, 155, 76, 0.15) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-section h3 {
            font-size: 1.7rem;
            color: var(--color-white);
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            max-width: 550px;
            margin: 0 auto 24px;
            position: relative;
            z-index: 1;
            line-height: 1.7;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.3px;
            transition: all var(--transition-base);
            cursor: pointer;
            white-space: nowrap;
            position: relative;
            z-index: 1;
        }
        .btn-primary {
            background: var(--color-accent);
            color: var(--color-primary);
            box-shadow: var(--shadow-md);
        }
        .btn-primary:hover {
            background: var(--color-accent-light);
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            color: var(--color-primary);
        }
        .btn-outline {
            background: transparent;
            color: var(--color-white);
            border: 2px solid rgba(255, 255, 255, 0.5);
        }
        .btn-outline:hover {
            border-color: var(--color-white);
            background: rgba(255, 255, 255, 0.08);
            color: var(--color-white);
        }
        .btn-sm {
            padding: 9px 20px;
            font-size: 13px;
            border-radius: 22px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.75);
            padding: 52px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-white);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .footer-logo span {
            color: var(--color-accent-light);
        }
        .footer-col h4 {
            color: var(--color-white);
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent-light);
        }
        .footer-col p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .page-banner h1 {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .content-block {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .content-block.reverse {
                direction: ltr;
            }
            .content-block .content-img {
                order: -1;
                max-width: 500px;
                margin: 0 auto;
            }
            .insight-list {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .mega-panel {
                min-width: 560px;
                grid-template-columns: repeat(2, 1fr);
                left: 0;
                transform: translateX(0) translateY(6px);
            }
            .main-nav>li.has-mega:hover .mega-panel,
            .main-nav>li.has-mega:focus-within .mega-panel {
                transform: translateX(0) translateY(0);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 60px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .logo-text {
                font-size: 18px;
            }
            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 17px;
            }
            .mobile-toggle {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                bottom: 0;
                background: var(--color-white);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 16px;
                overflow-y: auto;
                transform: translateX(100%);
                transition: transform var(--transition-base);
                z-index: 999;
                box-shadow: var(--shadow-xl);
            }
            .main-nav.open {
                transform: translateX(0);
            }
            .main-nav>li>a {
                padding: 14px 16px;
                font-size: 16px;
                border-radius: var(--radius-sm);
                width: 100%;
            }
            .mega-panel {
                position: static;
                transform: none;
                min-width: auto;
                grid-template-columns: 1fr 1fr;
                box-shadow: none;
                border: none;
                padding: 8px 8px 8px 16px;
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
                display: none;
                background: var(--color-bg-alt);
                border-radius: var(--radius-md);
                margin: 4px 8px;
            }
            .main-nav>li.has-mega.open-mega .mega-panel {
                display: grid;
            }
            .mega-item {
                padding: 10px;
            }
            .page-banner {
                padding: 50px 0 44px;
                min-height: auto;
            }
            .page-banner h1 {
                font-size: 1.7rem;
            }
            .page-banner .banner-subtitle {
                font-size: 0.95rem;
            }
            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .insight-list {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .cta-section {
                padding: 36px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h3 {
                font-size: 1.3rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .card {
                padding: 20px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .page-banner h1 {
                font-size: 1.4rem;
            }
            .section-title {
                font-size: 1.2rem;
            }
            .btn {
                padding: 11px 22px;
                font-size: 14px;
            }
            .content-block .content-img {
                max-width: 100%;
            }
            .mega-panel {
                grid-template-columns: 1fr;
            }
            .breadcrumb {
                font-size: 11px;
                gap: 4px;
            }
            .stat-number {
                font-size: 1.7rem;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #0d2137;
            --primary-light: #1a3d5c;
            --accent: #c9a050;
            --accent-light: #dbb860;
            --accent-dark: #a07830;
            --bg-white: #ffffff;
            --bg-light: #f7f8fa;
            --bg-sand: #faf8f4;
            --bg-dark: #0d2137;
            --text-primary: #1a1f2e;
            --text-body: #334155;
            --text-muted: #6b7280;
            --text-light: #94a3b8;
            --text-white: #f1f5f9;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.10), 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.12), 0 8px 20px rgba(0, 0, 0, 0.06);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50%;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-height: 68px;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--bg-white);
            overflow-x: hidden;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            color: var(--text-primary);
            line-height: 1.3;
            font-weight: 700;
        }

        p {
            margin: 0 0 1rem;
        }
        p:last-child {
            margin-bottom: 0;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        @media (min-width: 768px) {
            .container {
                padding: 0 32px;
            }
        }
        @media (min-width: 1024px) {
            .container {
                padding: 0 40px;
            }
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            height: 100%;
        }
        @media (min-width: 768px) {
            .header-inner {
                padding: 0 32px;
            }
        }
        @media (min-width: 1024px) {
            .header-inner {
                padding: 0 40px;
            }
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none;
            color: var(--primary);
            transition: opacity var(--transition-fast);
        }
        .logo-wrap:hover {
            opacity: 0.85;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: 1px;
            flex-shrink: 0;
            box-shadow: 0 2px 8px rgba(13, 33, 55, 0.25);
        }
        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--accent);
        }

        /* Navigation */
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .main-nav>li {
            position: relative;
        }
        .main-nav>li>a {
            display: flex;
            align-items: center;
            gap: 5px;
            padding: 10px 15px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            cursor: pointer;
        }
        .main-nav>li>a:hover {
            color: var(--primary);
            background: var(--bg-light);
        }
        .main-nav>li>a.active {
            color: var(--accent-dark);
            background: rgba(201, 160, 80, 0.08);
            font-weight: 700;
        }
        .main-nav>li>a .fa-chevron-down {
            font-size: 0.65rem;
            transition: transform var(--transition-normal);
            margin-left: 2px;
        }
        .main-nav>li:hover>a .fa-chevron-down {
            transform: rotate(180deg);
        }

        /* Mega Dropdown */
        .mega-dropdown {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            padding: 20px 16px;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            min-width: 520px;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: all var(--transition-slow);
            z-index: 999;
            border: 1px solid var(--border-light);
        }
        .main-nav>li:hover .mega-dropdown {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(4px);
        }
        .mega-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 14px;
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            text-decoration: none;
            color: var(--text-body);
        }
        .mega-item:hover {
            background: var(--bg-light);
            color: var(--primary);
        }
        .mega-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--bg-sand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--accent-dark);
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }
        .mega-item:hover .mega-icon {
            background: var(--accent);
            color: #fff;
        }
        .mega-info h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 2px;
        }
        .mega-info p {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.4;
        }

        /* Mobile Toggle */
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            z-index: 1001;
        }
        .mobile-toggle span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--primary);
            border-radius: 2px;
            transition: all var(--transition-normal);
        }
        .mobile-toggle.active span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .mobile-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .mobile-toggle.active span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            background: var(--bg-dark) url('assets/images/backpic/back-2.webp') center/cover no-repeat;
            min-height: 380px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 33, 55, 0.88) 0%, rgba(13, 33, 55, 0.7) 50%, rgba(26, 61, 92, 0.75) 100%);
            z-index: 1;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .banner-content {
            max-width: 700px;
            padding: 50px 0;
        }
        .banner-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(201, 160, 80, 0.2);
            border: 1px solid rgba(201, 160, 80, 0.4);
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-light);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .banner-content h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .banner-content h1 span {
            color: var(--accent-light);
            position: relative;
        }
        .banner-content .banner-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-bottom: 24px;
            max-width: 560px;
        }
        .banner-stats-row {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }
        .banner-stat-item {
            text-align: center;
            padding: 12px 20px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.12);
            min-width: 90px;
        }
        .banner-stat-item .stat-num {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent-light);
            display: block;
            line-height: 1;
        }
        .banner-stat-item .stat-label {
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 60px 0;
        }
        @media (min-width: 768px) {
            .section {
                padding: 80px 0;
            }
        }
        .section-sm {
            padding: 40px 0;
        }
        @media (min-width: 768px) {
            .section-sm {
                padding: 56px 0;
            }
        }
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        @media (min-width: 768px) {
            .section-header {
                margin-bottom: 52px;
            }
        }
        .section-header h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }
        @media (min-width: 768px) {
            .section-header h2 {
                font-size: 2.1rem;
            }
        }
        .section-header .section-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .section-header .accent-line {
            display: block;
            width: 50px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
            margin: 12px auto 0;
        }
        .bg-light-section {
            background: var(--bg-light);
        }
        .bg-sand-section {
            background: var(--bg-sand);
        }

        /* ========== CARDS GRID ========== */
        .cards-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }
        @media (min-width: 640px) {
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }
        @media (min-width: 1024px) {
            .cards-grid.cols-4 {
                grid-template-columns: repeat(4, 1fr);
            }
            .cards-grid.cols-3 {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        .info-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .info-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border);
        }
        .info-card .card-img-wrap {
            position: relative;
            width: 100%;
            padding-top: 56%;
            overflow: hidden;
            background: var(--bg-light);
        }
        .info-card .card-img-wrap img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .info-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .info-card .card-img-wrap .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 5px 12px;
            background: var(--accent);
            color: #fff;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            z-index: 2;
        }
        .info-card .card-body {
            padding: 18px 16px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .info-card .card-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .info-card .card-body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 12px;
            flex: 1;
        }
        .info-card .card-body .card-meta {
            font-size: 0.78rem;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .info-card .card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--accent-dark);
            transition: gap var(--transition-fast);
        }
        .info-card .card-body .card-link:hover {
            gap: 8px;
            color: var(--primary);
        }

        /* ========== STATS BAR ========== */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        @media (min-width: 640px) {
            .stats-bar {
                grid-template-columns: repeat(4, 1fr);
                gap: 20px;
            }
        }
        .stat-card {
            text-align: center;
            padding: 28px 16px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .stat-card .stat-icon {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 10px;
        }
        .stat-card .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ========== INTEL LIST ========== */
        .intel-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .intel-item {
            display: flex;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border-light);
            align-items: flex-start;
            transition: all var(--transition-fast);
        }
        .intel-item:first-child {
            padding-top: 0;
        }
        .intel-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .intel-date {
            flex-shrink: 0;
            width: 70px;
            text-align: center;
            padding: 8px 6px;
            background: var(--bg-sand);
            border-radius: var(--radius-sm);
            font-weight: 700;
            color: var(--accent-dark);
            font-size: 0.8rem;
            line-height: 1.3;
        }
        .intel-date strong {
            display: block;
            font-size: 1.3rem;
            color: var(--primary);
        }
        .intel-content {
            flex: 1;
            min-width: 0;
        }
        .intel-content h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .intel-content p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin: 0;
        }
        .intel-content .intel-league-tag {
            display: inline-block;
            padding: 3px 10px;
            background: var(--bg-light);
            border-radius: 50px;
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--text-muted);
            margin-top: 6px;
        }
        .intel-item:hover {
            background: var(--bg-sand);
            margin: 0 -12px;
            padding-left: 12px;
            padding-right: 12px;
            border-radius: var(--radius-md);
            border-bottom-color: transparent;
        }

        /* ========== FEATURE CARDS ========== */
        .feature-cards {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }
        @media (min-width: 640px) {
            .feature-cards {
                grid-template-columns: repeat(3, 1fr);
                gap: 24px;
            }
        }
        .feature-card {
            padding: 28px 22px;
            background: #fff;
            border-radius: var(--radius-lg);
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--accent);
        }
        .feature-card .feature-icon-circle {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-full);
            background: var(--bg-sand);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.6rem;
            color: var(--accent-dark);
            transition: all var(--transition-normal);
        }
        .feature-card:hover .feature-icon-circle {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 6px 20px rgba(201, 160, 80, 0.35);
        }
        .feature-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--bg-dark);
            padding: 56px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(ellipse at center, rgba(201, 160, 80, 0.06) 0%, transparent 60%);
            z-index: 1;
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 1.7rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        @media (min-width: 768px) {
            .cta-section h2 {
                font-size: 2rem;
            }
        }
        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 520px;
            margin: 0 auto 24px;
            line-height: 1.6;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            background: var(--accent);
            color: #fff;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.5px;
            transition: all var(--transition-normal);
            border: 2px solid var(--accent);
            cursor: pointer;
            text-decoration: none;
        }
        .btn-primary:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            color: #fff;
            box-shadow: 0 8px 24px rgba(201, 160, 80, 0.35);
            transform: translateY(-2px);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            background: transparent;
            color: #fff;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.5px;
            transition: all var(--transition-normal);
            border: 2px solid rgba(255, 255, 255, 0.35);
            cursor: pointer;
            text-decoration: none;
            margin-left: 10px;
        }
        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.82rem;
            border-radius: 50px;
            font-weight: 700;
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            text-decoration: none;
        }
        .btn-accent-outline {
            border: 2px solid var(--accent);
            color: var(--accent-dark);
            background: transparent;
        }
        .btn-accent-outline:hover {
            background: var(--accent);
            color: #fff;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-sm);
        }
        .faq-item:hover {
            border-color: var(--border);
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 16px 20px;
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-primary);
            background: #fff;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            cursor: pointer;
            transition: all var(--transition-fast);
            border: none;
            font-family: inherit;
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: var(--radius-full);
            background: var(--bg-sand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: var(--accent-dark);
            transition: all var(--transition-normal);
        }
        .faq-question:hover .faq-icon {
            background: var(--accent);
            color: #fff;
        }
        .faq-answer {
            padding: 0 20px 16px;
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-question .faq-icon {
            background: var(--accent);
            color: #fff;
            transform: rotate(45deg);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 20px;
            font-size: 0.88rem;
            line-height: 1.7;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin-bottom: 32px;
        }
        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr 1fr;
                gap: 32px;
            }
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .footer-col ul li {
            margin-bottom: 6px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition-fast);
            font-size: 0.84rem;
        }
        .footer-col ul li a:hover {
            color: var(--accent-light);
        }
        .footer-logo {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }
        .footer-logo span {
            color: var(--accent-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 16px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1023px) {
            .main-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                bottom: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 16px 20px;
                gap: 4px;
                overflow-y: auto;
                transform: translateX(100%);
                transition: transform var(--transition-slow);
                z-index: 999;
                box-shadow: var(--shadow-xl);
            }
            .main-nav.open {
                transform: translateX(0);
            }
            .main-nav>li>a {
                padding: 14px 16px;
                font-size: 1rem;
                border-radius: var(--radius-md);
                justify-content: space-between;
            }
            .mega-dropdown {
                position: static;
                transform: none;
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
                box-shadow: none;
                border: none;
                min-width: auto;
                grid-template-columns: 1fr;
                padding: 8px 0 8px 16px;
                display: none;
                background: var(--bg-light);
                border-radius: var(--radius-md);
                margin-top: 4px;
            }
            .main-nav>li.open-mega .mega-dropdown {
                display: grid;
            }
            .mobile-toggle {
                display: flex;
            }
            .main-nav>li:hover .mega-dropdown {
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
            }
        }
        @media (min-width: 1024px) {
            .mobile-toggle {
                display: none;
            }
            .main-nav {
                display: flex !important;
                position: static;
                flex-direction: row;
                background: transparent;
                box-shadow: none;
                padding: 0;
                overflow: visible;
                transform: none;
            }
            .mega-dropdown {
                display: grid;
            }
        }
        @media (max-width: 639px) {
            .banner-content h1 {
                font-size: 1.8rem;
            }
            .banner-content .banner-desc {
                font-size: 0.9rem;
            }
            .banner-stats-row {
                gap: 10px;
            }
            .banner-stat-item {
                padding: 10px 14px;
                min-width: 70px;
            }
            .banner-stat-item .stat-num {
                font-size: 1.2rem;
            }
            .page-banner {
                min-height: 300px;
            }
            .section {
                padding: 40px 0;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .stat-card .stat-number {
                font-size: 1.6rem;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 480px) {
            .banner-content h1 {
                font-size: 1.5rem;
            }
            .cards-grid {
                grid-template-columns: 1fr;
            }
            .feature-cards {
                grid-template-columns: 1fr;
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .btn-outline-light {
                margin-left: 0;
                margin-top: 10px;
            }
            .intel-date {
                width: 56px;
                font-size: 0.7rem;
            }
            .intel-date strong {
                font-size: 1rem;
            }
        }