/* roulang page: index */
:root {
            --primary: #1a2a6c;
            --primary-dark: #0f1d4e;
            --primary-light: #2c3f8f;
            --accent: #c9a84c;
            --accent-hover: #b8923a;
            --accent-light: #f0e4c8;
            --bg-white: #ffffff;
            --bg-light: #f5f6fa;
            --bg-light2: #eef0f5;
            --bg-dark: #0c1540;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-muted: #7c8a9e;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 8px;
            --radius: 12px;
            --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-md: 0 8px 30px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.16);
            --shadow-accent: 0 4px 20px rgba(201, 168, 76, 0.25);
            --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
        }

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

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

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

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

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

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

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            transition: all var(--transition);
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 24px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
            letter-spacing: -0.5px;
            transition: color var(--transition);
        }

        .logo-link:hover {
            color: var(--accent);
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

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

        .nav-desktop li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 8px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition);
            position: relative;
        }

        .nav-desktop li a:hover {
            color: var(--primary);
            background: var(--bg-light);
        }

        .nav-desktop li a.active {
            color: var(--accent);
            background: var(--accent-light);
            font-weight: 600;
        }

        .nav-desktop li a.nav-cta {
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            padding: 9px 20px;
            border-radius: 25px;
            box-shadow: var(--shadow-accent);
        }

        .nav-desktop li a.nav-cta:hover {
            background: var(--accent-hover);
            color: #fff;
            box-shadow: 0 6px 24px rgba(201, 168, 76, 0.35);
            transform: translateY(-1px);
        }

        .mobile-toggle {
            display: none;
            background: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 8px;
            border-radius: 8px;
            line-height: 1;
        }

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

        /* Mobile Nav Overlay */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            z-index: 1049;
            flex-direction: column;
            padding: 20px;
            gap: 4px;
            overflow-y: auto;
        }

        .mobile-nav-overlay.active {
            display: flex;
        }

        .mobile-nav-overlay a {
            display: block;
            padding: 14px 18px;
            font-size: 1.05rem;
            font-weight: 500;
            border-radius: var(--radius);
            color: var(--text-primary);
            transition: all var(--transition);
        }

        .mobile-nav-overlay a:hover,
        .mobile-nav-overlay a.active {
            background: var(--accent-light);
            color: var(--accent);
            font-weight: 600;
        }

        .mobile-nav-overlay a.nav-cta-mobile {
            background: var(--accent);
            color: #fff;
            text-align: center;
            font-weight: 600;
            border-radius: 25px;
            margin-top: 8px;
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            background: linear-gradient(135deg, #0c1540 0%, #1a2a6c 40%, #1e3278 70%, #0f1d4e 100%);
            min-height: 620px;
            display: flex;
            align-items: center;
            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: 0.18;
            z-index: 0;
            pointer-events: none;
        }

        .hero-pattern {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(201, 168, 76, 0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(255, 255, 255, 0.03) 0%, transparent 50%);
            z-index: 1;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding: 80px 0;
            max-width: 750px;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(201, 168, 76, 0.18);
            color: var(--accent);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            margin-bottom: 20px;
            border: 1px solid rgba(201, 168, 76, 0.3);
        }

        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 16px;
            letter-spacing: -1px;
            line-height: 1.2;
        }

        .hero-title .accent-text {
            color: var(--accent);
        }

        .hero-subtitle {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 12px;
            font-weight: 400;
            line-height: 1.6;
        }

        .hero-desc {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 32px;
            line-height: 1.8;
            max-width: 600px;
        }

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

        .btn-primary-hero {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            padding: 14px 30px;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.3px;
            box-shadow: var(--shadow-accent);
            transition: all var(--transition);
        }

        .btn-primary-hero:hover {
            background: var(--accent-hover);
            color: #fff;
            box-shadow: 0 8px 32px rgba(201, 168, 76, 0.4);
            transform: translateY(-2px);
        }

        .btn-outline-hero {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            padding: 14px 30px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid rgba(255, 255, 255, 0.4);
            transition: all var(--transition);
        }

        .btn-outline-hero:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        .hero-stats-row {
            display: flex;
            gap: 28px;
            margin-top: 40px;
            flex-wrap: wrap;
        }

        .hero-stat-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.9);
            font-size: 0.95rem;
        }

        .hero-stat-item i {
            color: var(--accent);
            font-size: 1.25rem;
        }

        .hero-stat-item strong {
            font-size: 1.35rem;
            color: #fff;
            font-weight: 700;
        }

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

        .section-sm {
            padding: 52px 0;
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 1px;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 8px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 650px;
            line-height: 1.7;
        }

        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }

        .section-header .section-desc {
            margin: 0 auto;
        }

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

        .bg-dark-section {
            background: var(--bg-dark);
            color: #fff;
        }

        .bg-dark-section .section-title {
            color: #fff;
        }

        .bg-dark-section .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ========== STATS RIBBON ========== */
        .stats-ribbon {
            background: #fff;
            border-bottom: 1px solid var(--border);
            position: relative;
            z-index: 3;
            margin-top: -36px;
            padding: 0 0 20px 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 32px 28px;
            position: relative;
            top: -48px;
            z-index: 5;
        }

        .stat-card {
            text-align: center;
            padding: 8px 12px;
            border-right: 1px solid var(--border-light);
        }

        .stat-card:last-child {
            border-right: none;
        }

        .stat-icon {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--accent-light);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 10px;
            color: var(--accent);
            font-size: 1.25rem;
        }

        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            line-height: 1;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

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

        .adv-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .adv-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--accent-light);
        }

        .adv-card-icon {
            width: 64px;
            height: 64px;
            border-radius: var(--radius);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.5rem;
            margin-bottom: 18px;
        }

        .adv-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .adv-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            margin: 0;
        }

        /* ========== BRAND STORY ========== */
        .brand-story-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .brand-story-img-wrap {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .brand-story-img-wrap img {
            width: 100%;
            height: auto;
            border-radius: var(--radius-xl);
            transition: transform var(--transition);
        }

        .brand-story-img-wrap:hover img {
            transform: scale(1.03);
        }

        .brand-story-badge {
            position: absolute;
            bottom: 20px;
            left: 20px;
            background: rgba(26, 42, 108, 0.92);
            color: #fff;
            padding: 10px 18px;
            border-radius: 25px;
            font-weight: 600;
            font-size: 0.9rem;
            backdrop-filter: blur(8px);
        }

        .brand-story-text h2 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .brand-story-text p {
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 14px;
            font-size: 0.98rem;
        }

        .brand-story-features {
            list-style: none;
            padding: 0;
            margin: 20px 0 0 0;
        }

        .brand-story-features li {
            padding: 8px 0;
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 500;
            color: var(--text-primary);
        }

        .brand-story-features li i {
            color: var(--accent);
            font-size: 1.1rem;
        }

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

        .match-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }

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

        .match-card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

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

        .match-card:hover .match-card-img img {
            transform: scale(1.06);
        }

        .match-card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: #fff;
            padding: 4px 12px;
            border-radius: 16px;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.3px;
        }

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

        .match-card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .match-card-body .match-date {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .match-card-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 14px;
        }

        .btn-sm-accent {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: transparent;
            color: var(--accent);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: all var(--transition);
        }

        .btn-sm-accent:hover {
            border-bottom-color: var(--accent);
            color: var(--accent-hover);
        }

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

        .testimonial-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
        }

        .testimonial-card .quote-icon {
            font-size: 2.5rem;
            color: var(--accent-light);
            position: absolute;
            top: 16px;
            right: 20px;
            opacity: 0.6;
        }

        .testimonial-card .stars {
            color: #f0b90b;
            font-size: 0.95rem;
            margin-bottom: 10px;
            letter-spacing: 2px;
        }

        .testimonial-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 16px;
            font-style: italic;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .testimonial-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
        }

        .testimonial-author strong {
            display: block;
            font-size: 0.9rem;
            color: var(--text-primary);
        }

        .testimonial-author span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ========== PARTNERS ========== */
        .partner-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 32px 48px;
        }

        .partner-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-muted);
            padding: 12px 20px;
            border-radius: var(--radius);
            transition: all var(--transition);
            background: #fff;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }

        .partner-item:hover {
            color: var(--primary);
            box-shadow: var(--shadow);
            border-color: var(--border);
        }

        .partner-dot {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

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

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

        .faq-question {
            width: 100%;
            background: none;
            padding: 18px 24px;
            text-align: left;
            font-weight: 600;
            font-size: 1.02rem;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            cursor: pointer;
            transition: all var(--transition);
            border: none;
            font-family: inherit;
        }

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

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all var(--transition);
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .faq-item.open .faq-icon {
            background: var(--accent);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 24px 20px 24px;
        }

        .faq-answer p {
            color: var(--text-secondary);
            line-height: 1.8;
            font-size: 0.95rem;
            margin: 0;
        }

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

        .news-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .news-card-img {
            height: 190px;
            overflow: hidden;
        }

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

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

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

        .news-date {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 6px;
        }

        .news-card-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .news-card-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 12px;
        }

        .btn-read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--accent);
            align-self: flex-start;
            transition: all var(--transition);
        }

        .btn-read-more:hover {
            color: var(--accent-hover);
            gap: 10px;
        }

        /* ========== CTA ========== */
        .cta-section {
            position: relative;
            background: linear-gradient(135deg, #0c1540 0%, #1a2a6c 100%);
            overflow: hidden;
            text-align: center;
            padding: 70px 0;
        }

        .cta-bg {
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 650px;
            margin: 0 auto;
        }

        .cta-content h2 {
            color: #fff;
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .cta-content p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            margin-bottom: 28px;
            line-height: 1.7;
        }

        .btn-cta-lg {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: #fff;
            padding: 16px 38px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1.1rem;
            box-shadow: var(--shadow-accent);
            transition: all var(--transition);
            letter-spacing: 0.3px;
        }

        .btn-cta-lg:hover {
            background: var(--accent-hover);
            color: #fff;
            box-shadow: 0 10px 36px rgba(201, 168, 76, 0.45);
            transform: translateY(-3px);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0a1030;
            color: rgba(255, 255, 255, 0.75);
            padding: 52px 0 28px;
            font-size: 0.92rem;
        }

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

        .footer-brand h3 {
            color: #fff;
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .footer-brand p {
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            font-size: 0.88rem;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

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

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

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            text-align: center;
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.82rem;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
        }

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

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.4rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
                padding: 24px 20px;
                top: -36px;
            }
            .stat-card {
                border-right: none;
                border-bottom: 1px solid var(--border-light);
                padding-bottom: 16px;
            }
            .stat-card:nth-child(3),
            .stat-card:nth-child(4) {
                border-bottom: none;
            }
            .adv-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .brand-story-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .match-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .header-inner {
                height: 60px;
            }
            .hero-section {
                min-height: auto;
            }
            .hero-content {
                padding: 56px 0;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 1.05rem;
            }
            .hero-btns {
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-stats-row {
                gap: 16px;
                margin-top: 24px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                top: -28px;
                border-radius: var(--radius);
            }
            .stat-number {
                font-size: 1.7rem;
            }
            .adv-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .match-grid {
                grid-template-columns: 1fr;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .brand-story-text h2 {
                font-size: 1.5rem;
            }
            .cta-content h2 {
                font-size: 1.5rem;
            }
            .partner-row {
                gap: 16px 20px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.65rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-desc {
                font-size: 0.88rem;
            }
            .btn-primary-hero,
            .btn-outline-hero {
                padding: 12px 22px;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }
            .hero-btns {
                width: 100%;
            }
            .stats-grid {
                grid-template-columns: 1fr;
                top: -20px;
                padding: 20px 16px;
                gap: 12px;
            }
            .stat-card {
                border-bottom: 1px solid var(--border-light);
                border-right: none;
                padding-bottom: 12px;
            }
            .stat-card:last-child {
                border-bottom: none;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .news-card-img {
                height: 160px;
            }
            .match-card-img {
                height: 170px;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 16px 16px;
            }
            .container {
                padding: 0 14px;
            }
            .container-wide {
                padding: 0 14px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1a365d;
            --primary-light: #2c5282;
            --primary-dark: #0f2440;
            --accent: #c8963e;
            --accent-light: #d4a853;
            --accent-dark: #a67c2e;
            --bg-white: #ffffff;
            --bg-light: #f7f8fa;
            --bg-lighter: #edf0f3;
            --bg-dark: #1a1a2e;
            --text-primary: #1a1a2e;
            --text-secondary: #4a5568;
            --text-muted: #8899aa;
            --text-light: #a0aec0;
            --border: #e2e8f0;
            --border-light: #edf2f7;
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.12);
            --transition: 0.25s ease;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, sans-serif;
            --max-width: 1240px;
            --max-width-wide: 1320px;
            --header-height: 68px;
        }

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

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

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }
        ul {
            list-style: none;
        }
        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            transition: all var(--transition);
        }
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

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

        /* ========== HEADER ========== */
        .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-xs);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
            letter-spacing: -0.01em;
            transition: color var(--transition);
        }
        .logo-link:hover {
            color: var(--accent);
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: var(--radius);
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }
        .nav-desktop li a {
            display: inline-block;
            padding: 8px 15px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition);
            position: relative;
        }
        .nav-desktop li a:hover {
            color: var(--primary);
            background: var(--bg-lighter);
        }
        .nav-desktop li a.active {
            color: var(--accent);
            background: rgba(200, 150, 62, 0.08);
            font-weight: 600;
        }
        .nav-cta {
            background: var(--accent) !important;
            color: #fff !important;
            font-weight: 600 !important;
            padding: 9px 20px !important;
            border-radius: var(--radius) !important;
            margin-left: 6px;
            box-shadow: 0 2px 10px rgba(200, 150, 62, 0.3);
        }
        .nav-cta:hover {
            background: var(--accent-dark) !important;
            box-shadow: 0 4px 16px rgba(200, 150, 62, 0.4) !important;
            transform: translateY(-1px);
        }
        .mobile-toggle {
            display: none;
            background: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 8px;
            border-radius: var(--radius-sm);
        }
        .mobile-toggle:hover {
            background: var(--bg-lighter);
        }

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

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            background: var(--primary-dark) url('assets/images/backpic/back-2.webp') center / cover no-repeat;
            background-blend-mode: overlay;
            padding: 70px 0 60px;
            text-align: center;
            color: #fff;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 36, 64, 0.55) 0%, rgba(26, 54, 93, 0.8) 100%);
            z-index: 0;
        }
        .page-banner .container {
            position: relative;
            z-index: 1;
        }
        .page-banner .badge-tag {
            display: inline-block;
            background: rgba(200, 150, 62, 0.9);
            color: #fff;
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }
        .page-banner h1 {
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 14px;
            line-height: 1.25;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
        }
        .page-banner .banner-sub {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.9);
            max-width: 680px;
            margin: 0 auto 8px;
            line-height: 1.6;
        }
        .banner-stats-row {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 28px;
            flex-wrap: wrap;
        }
        .banner-stat-item {
            text-align: center;
        }
        .banner-stat-item .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-light);
            display: block;
            line-height: 1;
        }
        .banner-stat-item .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 4px;
        }

        /* ========== SECTION ========== */
        .section {
            padding: 56px 0;
        }
        .section-sm {
            padding: 36px 0;
        }
        .section-lg {
            padding: 72px 0;
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
            position: relative;
            display: inline-block;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 48px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .section-subtitle {
            color: var(--text-muted);
            font-size: 1rem;
            margin-bottom: 32px;
            line-height: 1.5;
        }
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-header .section-title {
            display: block;
            text-align: center;
        }
        .section-header .section-title::after {
            left: 50%;
            transform: translateX(-50%);
        }

        /* ========== CARDS ========== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 24px;
        }
        .card-grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-xs);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border);
        }
        .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--bg-lighter);
        }
        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--accent);
            background: rgba(200, 150, 62, 0.1);
            padding: 4px 12px;
            border-radius: 50px;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
            letter-spacing: -0.01em;
        }
        .card-body p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.6;
            flex: 1;
        }
        .card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary);
            transition: color var(--transition);
        }
        .card-body .card-link:hover {
            color: var(--accent);
        }
        .card-body .card-link i {
            font-size: 0.75rem;
            transition: transform var(--transition);
        }
        .card-body .card-link:hover i {
            transform: translateX(3px);
        }

        /* ========== INFO BLOCK ========== */
        .info-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .info-block.reverse {
            direction: rtl;
        }
        .info-block.reverse>* {
            direction: ltr;
        }
        .info-block-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            aspect-ratio: 4 / 3;
        }
        .info-block-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .info-block-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        .info-block-text p {
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 10px;
            font-size: 0.98rem;
        }

        /* ========== HIGHLIGHT BOX ========== */
        .highlight-box {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: var(--radius-xl);
            padding: 40px 44px;
            display: flex;
            align-items: center;
            gap: 36px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-lg);
        }
        .highlight-box-icon {
            width: 72px;
            height: 72px;
            background: rgba(255, 255, 255, 0.12);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            flex-shrink: 0;
            color: var(--accent-light);
        }
        .highlight-box-text h3 {
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .highlight-box-text p {
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.6;
        }

        /* ========== LIST ========== */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .article-list-item {
            display: flex;
            gap: 18px;
            padding: 18px 20px;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            transition: all var(--transition);
            align-items: center;
        }
        .article-list-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--border);
        }
        .article-list-thumb {
            width: 100px;
            height: 70px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-lighter);
        }
        .article-list-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .article-list-info {
            flex: 1;
            min-width: 0;
        }
        .article-list-info h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .article-list-info .meta {
            font-size: 0.82rem;
            color: var(--text-muted);
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .article-list-arrow {
            color: var(--text-muted);
            font-size: 0.9rem;
            flex-shrink: 0;
            transition: all var(--transition);
        }
        .article-list-item:hover .article-list-arrow {
            color: var(--accent);
            transform: translateX(4px);
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border);
            box-shadow: var(--shadow-xs);
        }
        .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            user-select: none;
            background: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-question i {
            transition: transform var(--transition);
            color: var(--text-muted);
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 22px;
            color: var(--text-secondary);
            font-size: 0.93rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(160deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            text-align: center;
            padding: 56px 0;
            border-radius: 0;
        }
        .cta-section h3 {
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 24px;
            line-height: 1.6;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(200, 150, 62, 0.35);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(200, 150, 62, 0.45);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }
        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 24px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }
        .footer-brand h3 {
            color: #fff;
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.65);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .footer-col ul li {
            margin-bottom: 7px;
        }
        .footer-col ul li a {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
            text-align: center;
        }
        .footer-bottom p {
            line-height: 1.5;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .card-grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .info-block {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .info-block.reverse {
                direction: ltr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .page-banner h1 {
                font-size: 2.2rem;
            }
            .banner-stats-row {
                gap: 24px;
            }
            .card-grid {
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            }
        }

        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px 20px;
                gap: 2px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .nav-desktop.open {
                display: flex;
            }
            .nav-desktop li a {
                display: block;
                padding: 12px 16px;
                border-radius: var(--radius);
            }
            .nav-cta {
                margin-left: 0;
                text-align: center;
                margin-top: 8px;
            }
            .mobile-toggle {
                display: block;
            }
            .page-banner {
                padding: 48px 0 40px;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner .banner-sub {
                font-size: 0.95rem;
            }
            .banner-stat-item .stat-num {
                font-size: 1.5rem;
            }
            .card-grid-3 {
                grid-template-columns: 1fr;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .highlight-box {
                flex-direction: column;
                text-align: center;
                padding: 28px 22px;
            }
            .article-list-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .article-list-thumb {
                width: 100%;
                height: 140px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .section {
                padding: 40px 0;
            }
            .section-lg {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .info-block-text h3 {
                font-size: 1.25rem;
            }
        }

        @media (max-width: 520px) {
            .container,
            .container-wide {
                padding: 0 14px;
            }
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .banner-stats-row {
                gap: 16px;
            }
            .banner-stat-item .stat-num {
                font-size: 1.3rem;
            }
            .banner-stat-item .stat-label {
                font-size: 0.75rem;
            }
            .card-body {
                padding: 14px 16px 18px;
            }
            .card-body h3 {
                font-size: 1rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .faq-answer {
                font-size: 0.85rem;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }
            .btn {
                padding: 10px 22px;
                font-size: 0.88rem;
            }
            .highlight-box {
                padding: 22px 16px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #1a365d;
            --color-primary-light: #2c5282;
            --color-primary-dark: #0f2440;
            --color-accent: #c8953b;
            --color-accent-light: #d4a853;
            --color-accent-dark: #a67c2e;
            --color-bg: #ffffff;
            --color-bg-alt: #f6f7f9;
            --color-bg-card: #ffffff;
            --color-bg-dark: #1a202c;
            --color-text: #1e293b;
            --color-text-secondary: #64748b;
            --color-text-light: #94a3b8;
            --color-text-on-dark: #e2e8f0;
            --color-text-on-primary: #ffffff;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --color-success: #16a34a;
            --color-warning: #d97706;
            --color-danger: #dc2626;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --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);
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.06), 0 6px 20px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 8px 28px rgba(0, 0, 0, 0.10), 0 12px 36px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --container-wide: 1280px;
            --container-narrow: 900px;
            --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-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

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

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

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

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            height: var(--header-height);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
        }

        .logo-link:hover {
            opacity: 0.85;
        }

        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: #fff;
            border-radius: var(--radius-md);
            font-size: 1.2rem;
            flex-shrink: 0;
            box-shadow: 0 2px 8px rgba(26, 54, 93, 0.25);
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .nav-desktop li a {
            display: block;
            padding: 8px 15px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-desktop li a:hover {
            color: var(--color-primary);
            background-color: rgba(26, 54, 93, 0.04);
        }

        .nav-desktop li a.active {
            color: var(--color-primary);
            font-weight: 600;
            background-color: rgba(26, 54, 93, 0.07);
        }

        .nav-desktop li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px;
        }

        .nav-cta {
            background: var(--color-accent) !important;
            color: #fff !important;
            font-weight: 600 !important;
            padding: 9px 18px !important;
            border-radius: var(--radius-full) !important;
            transition: all var(--transition-fast) !important;
            box-shadow: 0 2px 8px rgba(200, 149, 59, 0.3);
            margin-left: 8px;
        }

        .nav-cta:hover {
            background: var(--color-accent-dark) !important;
            box-shadow: 0 4px 16px rgba(200, 149, 59, 0.4) !important;
            transform: translateY(-1px);
            color: #fff !important;
        }

        .nav-cta.active::after {
            display: none !important;
        }

        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--color-primary);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-toggle:hover {
            background: rgba(26, 54, 93, 0.06);
        }

        /* Page Banner */
        .page-banner {
            position: relative;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 80px 0 70px;
            color: #fff;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 36, 64, 0.88) 0%, rgba(26, 54, 93, 0.78) 40%, rgba(44, 82, 82, 0.65) 100%);
            z-index: 1;
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb .sep {
            font-size: 0.7rem;
            opacity: 0.6;
        }

        .breadcrumb .current {
            color: #fff;
            font-weight: 500;
        }

        .page-banner-title {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
            line-height: 1.25;
            color: #fff;
        }

        .page-banner-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 650px;
            line-height: 1.7;
        }

        .banner-stats-row {
            display: flex;
            gap: 32px;
            margin-top: 28px;
            flex-wrap: wrap;
        }

        .banner-stat-item {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .banner-stat-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-accent-light);
            line-height: 1;
        }

        .banner-stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.3;
        }

        /* Section */
        .section {
            padding: 64px 0;
        }

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

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

        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .section-header .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }

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

        .section-dark .section-header .section-subtitle {
            color: var(--color-text-light);
        }

        /* Cards Grid */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .cards-grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .cards-grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        /* Card */
        .card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

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

        .card-image-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #e9ecf1;
        }

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

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

        .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-accent);
            color: #fff;
            padding: 5px 12px;
            border-radius: var(--radius-full);
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            z-index: 2;
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
        }

        .card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text);
            line-height: 1.4;
        }

        .card-body p {
            font-size: 0.92rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
        }

        .card-meta {
            font-size: 0.82rem;
            color: var(--color-text-light);
            display: flex;
            gap: 14px;
            align-items: center;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-primary);
            transition: gap var(--transition-fast);
            align-self: flex-start;
        }

        .card-link:hover {
            gap: 10px;
            color: var(--color-accent);
        }

        .card-link i {
            font-size: 0.75rem;
            transition: transform var(--transition-fast);
        }

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

        /* Stat Cards */
        .stat-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
        }

        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .stat-card .stat-icon {
            font-size: 2.2rem;
            color: var(--color-accent);
            margin-bottom: 12px;
        }

        .stat-card .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1;
            margin-bottom: 6px;
        }

        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            font-weight: 500;
        }

        /* Analysis list */
        .analysis-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .analysis-item {
            display: flex;
            gap: 18px;
            align-items: flex-start;
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
        }

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

        .analysis-number {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-full);
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
        }

        .analysis-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 4px;
        }

        .analysis-content p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all var(--transition-normal);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: background var(--transition-fast);
            background: none;
            border: none;
            cursor: pointer;
            font-family: inherit;
        }

        .faq-question:hover {
            background: rgba(26, 54, 93, 0.03);
        }

        .faq-question i {
            font-size: 0.85rem;
            color: var(--color-text-light);
            transition: transform var(--transition-normal);
            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-slow);
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 0.93rem;
            color: var(--color-text-secondary);
            line-height: 1.75;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
            color: #fff;
            text-align: center;
            padding: 64px 24px;
            border-radius: 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 280px;
            height: 280px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 1.05rem;
            opacity: 0.9;
            margin-bottom: 28px;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
            text-decoration: none;
            cursor: pointer;
            border: none;
            font-family: inherit;
        }

        .btn-accent {
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(200, 149, 59, 0.35);
        }

        .btn-accent:hover {
            background: var(--color-accent-dark);
            box-shadow: 0 6px 24px rgba(200, 149, 59, 0.45);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
        }

        .btn-lg {
            padding: 15px 34px;
            font-size: 1.1rem;
        }

        /* Footer */
        .site-footer {
            background: var(--color-bg-dark);
            color: var(--color-text-on-dark);
            padding: 48px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }

        .footer-brand h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: #fff;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: var(--color-text-light);
            line-height: 1.6;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 0.9rem;
            color: var(--color-text-light);
            transition: color var(--transition-fast);
        }

        .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: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: var(--color-text-light);
        }

        /* Mobile nav overlay */
        .nav-mobile-overlay {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: #fff;
            z-index: 999;
            padding: 20px 24px;
            overflow-y: auto;
            flex-direction: column;
            gap: 4px;
        }

        .nav-mobile-overlay.open {
            display: flex;
        }

        .nav-mobile-overlay a {
            display: block;
            padding: 14px 16px;
            font-size: 1.05rem;
            font-weight: 500;
            border-radius: var(--radius-md);
            color: var(--color-text);
            transition: all var(--transition-fast);
        }

        .nav-mobile-overlay a:hover,
        .nav-mobile-overlay a.active {
            background: rgba(26, 54, 93, 0.06);
            color: var(--color-primary);
            font-weight: 600;
        }

        .nav-mobile-overlay .nav-cta-mobile {
            background: var(--color-accent) !important;
            color: #fff !important;
            text-align: center;
            font-weight: 600 !important;
            margin-top: 8px;
            border-radius: var(--radius-full) !important;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cards-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .page-banner-title {
                font-size: 2.1rem;
            }
            .banner-stats-row {
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .cards-grid {
                grid-template-columns: 1fr;
            }
            .cards-grid-2 {
                grid-template-columns: 1fr;
            }
            .cards-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .section {
                padding: 44px 0;
            }
            .page-banner {
                padding: 50px 0 44px;
            }
            .page-banner-title {
                font-size: 1.7rem;
            }
            .page-banner-subtitle {
                font-size: 1rem;
            }
            .banner-stats-row {
                gap: 14px;
                flex-wrap: wrap;
            }
            .banner-stat-num {
                font-size: 1.5rem;
            }
            .banner-stat-label {
                font-size: 0.8rem;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .analysis-item {
                flex-direction: column;
                gap: 10px;
            }
            .analysis-number {
                width: 36px;
                height: 36px;
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .container,
            .container-wide,
            .container-narrow {
                padding-left: 14px;
                padding-right: 14px;
            }
            .cards-grid-4 {
                grid-template-columns: 1fr;
            }
            .page-banner-title {
                font-size: 1.45rem;
            }
            .banner-stats-row {
                gap: 10px;
            }
            .banner-stat-num {
                font-size: 1.3rem;
            }
            .banner-stat-label {
                font-size: 0.75rem;
            }
            .card-body {
                padding: 14px 16px 18px;
            }
            .card-body h3 {
                font-size: 1rem;
            }
            .btn {
                padding: 11px 20px;
                font-size: 0.9rem;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .faq-answer-inner {
                padding: 0 16px 16px;
                font-size: 0.85rem;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #1a3c5e;
            --color-primary-light: #234b73;
            --color-primary-dark: #0f2840;
            --color-accent: #d4a843;
            --color-accent-light: #e6c56e;
            --color-accent-dark: #b8912e;
            --color-bg: #f8f9fb;
            --color-bg-alt: #eef1f5;
            --color-bg-dark: #1a2a38;
            --color-surface: #ffffff;
            --color-surface-alt: #f4f6f9;
            --color-text: #1e293b;
            --color-text-strong: #0f172a;
            --color-text-weak: #64748b;
            --color-text-muted: #94a3b8;
            --color-text-on-dark: #e8ecf1;
            --color-border: #e2e6ed;
            --color-border-light: #edf1f6;
            --color-success: #2e9e5f;
            --color-warning: #e89b2c;
            --color-danger: #d14343;
            --color-info: #3b82f6;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 22px;
            --radius-full: 50%;
            --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
            --shadow-sm: 0 2px 6px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 6px 20px rgba(15, 23, 42, 0.08);
            --shadow-lg: 0 12px 36px rgba(15, 23, 42, 0.12);
            --shadow-xl: 0 20px 50px rgba(15, 23, 42, 0.16);
            --shadow-card-hover: 0 14px 40px rgba(15, 23, 42, 0.14);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'JetBrains Mono', 'Consolas', 'Monaco', monospace;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --spacing-xs: 4px;
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 24px;
            --spacing-xl: 32px;
            --spacing-2xl: 48px;
            --spacing-3xl: 64px;
            --spacing-4xl: 80px;
            --container-max: 1240px;
            --container-wide: 1320px;
            --container-narrow: 860px;
            --header-height: 68px;
            --header-height-mobile: 58px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

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

        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border-radius: var(--radius-sm);
            border: 1.5px solid var(--color-border);
            padding: 10px 14px;
            outline: none;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            background: var(--color-surface);
            color: var(--color-text);
            width: 100%;
        }

        input:focus,
        select:focus,
        textarea:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(212, 168, 67, 0.15);
        }

        ul {
            list-style: none;
        }

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

        h1 {
            font-size: 2.6rem;
            letter-spacing: -0.5px;
        }
        h2 {
            font-size: 2rem;
            letter-spacing: -0.3px;
        }
        h3 {
            font-size: 1.45rem;
            letter-spacing: -0.1px;
        }
        h4 {
            font-size: 1.15rem;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
            width: 100%;
        }
        .container-wide {
            max-width: var(--container-wide);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
            width: 100%;
        }
        .container-narrow {
            max-width: var(--container-narrow);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
            width: 100%;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        .section {
            padding: var(--spacing-4xl) 0;
        }
        .section-alt {
            background-color: var(--color-bg-alt);
        }
        .section-dark {
            background-color: var(--color-bg-dark);
            color: var(--color-text-on-dark);
        }
        .section-dark h2,
        .section-dark h3,
        .section-dark h4 {
            color: #ffffff;
        }
        .section-dark .text-weak {
            color: #b0bec5;
        }

        .text-weak {
            color: var(--color-text-weak);
        }
        .text-muted {
            color: var(--color-text-muted);
        }
        .text-accent {
            color: var(--color-accent);
        }
        .text-center {
            text-align: center;
        }
        .mb-sm {
            margin-bottom: var(--spacing-sm);
        }
        .mb-md {
            margin-bottom: var(--spacing-md);
        }
        .mb-lg {
            margin-bottom: var(--spacing-lg);
        }
        .mb-xl {
            margin-bottom: var(--spacing-xl);
        }
        .mb-2xl {
            margin-bottom: var(--spacing-2xl);
        }
        .mt-lg {
            margin-top: var(--spacing-lg);
        }
        .mt-xl {
            margin-top: var(--spacing-xl);
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            width: 100%;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--color-primary);
            letter-spacing: -0.3px;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
            text-decoration: none;
        }
        .logo-link:hover {
            opacity: 0.85;
            color: var(--color-primary);
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-md);
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .nav-desktop li a {
            display: inline-block;
            padding: 8px 15px;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-sm);
            color: var(--color-text);
            transition: all var(--transition-fast);
            white-space: nowrap;
            text-decoration: none;
        }
        .nav-desktop li a:hover {
            background: var(--color-bg-alt);
            color: var(--color-primary);
        }
        .nav-desktop li a.active {
            background: var(--color-primary);
            color: #fff;
            font-weight: 700;
        }
        .nav-cta {
            background: var(--color-accent) !important;
            color: #fff !important;
            font-weight: 700 !important;
            padding: 9px 20px !important;
            border-radius: var(--radius-md) !important;
            margin-left: 8px;
            transition: all var(--transition-fast) !important;
        }
        .nav-cta:hover {
            background: var(--color-accent-dark) !important;
            color: #fff !important;
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }
        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--color-primary);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mobile-toggle:hover {
            background: var(--color-bg-alt);
        }

        @media (max-width: 1024px) {
            .nav-desktop {
                gap: 2px;
            }
            .nav-desktop li a {
                padding: 7px 10px;
                font-size: 0.88rem;
            }
            .nav-cta {
                padding: 7px 14px !important;
                font-size: 0.88rem !important;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                height: var(--header-height-mobile);
            }
            .mobile-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .nav-desktop {
                display: none;
                position: absolute;
                top: var(--header-height-mobile);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                gap: 0;
                padding: 12px 0;
                box-shadow: var(--shadow-lg);
                border-bottom: 2px solid var(--color-border);
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
                z-index: 999;
                max-height: 70vh;
                overflow-y: auto;
            }
            .nav-desktop.open {
                display: flex;
            }
            .nav-desktop li {
                width: 100%;
            }
            .nav-desktop li a {
                display: block;
                padding: 13px 24px;
                border-radius: 0;
                font-size: 1rem;
                border-bottom: 1px solid var(--color-border-light);
            }
            .nav-desktop li a.active {
                border-radius: 0;
            }
            .nav-cta {
                margin: 8px 16px;
                text-align: center;
                border-radius: var(--radius-md) !important;
            }
        }

        /* ========== PAGE HERO ========== */
        .page-hero {
            position: relative;
            padding: var(--spacing-4xl) 0 var(--spacing-3xl);
            background-color: var(--color-primary-dark);
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            color: #fff;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 40, 64, 0.88) 0%, rgba(26, 60, 94, 0.75) 50%, rgba(15, 40, 64, 0.85) 100%);
            z-index: 1;
        }
        .page-hero .hero-inner {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: var(--spacing-md);
            max-width: 700px;
        }
        .page-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 7px 16px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-accent-light);
            letter-spacing: 0.4px;
            backdrop-filter: blur(6px);
        }
        .page-hero h1 {
            color: #fff;
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: -0.6px;
            line-height: 1.2;
        }
        .page-hero .hero-desc {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            max-width: 560px;
        }
        .page-hero .hero-stats-row {
            display: flex;
            gap: var(--spacing-xl);
            flex-wrap: wrap;
            margin-top: var(--spacing-md);
        }
        .page-hero .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .page-hero .hero-stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-accent-light);
            letter-spacing: -1px;
            font-variant-numeric: tabular-nums;
            font-family: var(--font-mono);
        }
        .page-hero .hero-stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 0.3px;
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: var(--spacing-2xl) 0 var(--spacing-xl);
            }
            .page-hero h1 {
                font-size: 2rem;
            }
            .page-hero .hero-desc {
                font-size: 1rem;
            }
            .page-hero .hero-stats-row {
                gap: var(--spacing-lg);
            }
            .page-hero .hero-stat-num {
                font-size: 1.5rem;
            }
        }

        /* ========== CARDS GRID ========== */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: var(--spacing-lg);
        }
        .cards-grid.cols-3 {
            grid-template-columns: repeat(3, 1fr);
        }
        .cards-grid.cols-4 {
            grid-template-columns: repeat(4, 1fr);
        }
        .cards-grid.cols-2 {
            grid-template-columns: repeat(2, 1fr);
        }

        @media (max-width: 1024px) {
            .cards-grid.cols-3,
            .cards-grid.cols-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 600px) {
            .cards-grid,
            .cards-grid.cols-2,
            .cards-grid.cols-3,
            .cards-grid.cols-4 {
                grid-template-columns: 1fr;
            }
        }

        /* ========== CARD COMPONENT ========== */
        .card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }
        .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--color-bg-alt);
        }
        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-slow);
        }
        .card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .card-body {
            padding: var(--spacing-lg);
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        .card-body h3 {
            font-size: 1.2rem;
            margin-bottom: 2px;
        }
        .card-body p {
            color: var(--color-text-weak);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            font-size: 0.82rem;
            color: var(--color-text-muted);
            margin-top: auto;
            padding-top: var(--spacing-sm);
        }
        .card-tag {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .card-tag.accent {
            background: rgba(212, 168, 67, 0.13);
            color: #8b6914;
        }
        .card-tag.info {
            background: rgba(59, 130, 246, 0.1);
            color: #1d5ec9;
        }
        .card-tag.success {
            background: rgba(46, 158, 95, 0.1);
            color: #1a6e3e;
        }
        .card-tag.warning {
            background: rgba(232, 155, 44, 0.1);
            color: #a66b15;
        }

        /* ========== STAT CARDS ========== */
        .stat-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            padding: var(--spacing-xl);
            text-align: center;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-xs);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .stat-card .stat-icon {
            font-size: 2.2rem;
            color: var(--color-accent);
            margin-bottom: var(--spacing-sm);
        }
        .stat-card .stat-value {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -1px;
            font-variant-numeric: tabular-nums;
            font-family: var(--font-mono);
            line-height: 1.1;
        }
        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            margin-top: 4px;
            font-weight: 500;
        }
        .stat-card .stat-desc {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            margin-top: 6px;
            line-height: 1.5;
        }
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
        }
        @media (max-width: 1024px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-md);
            }
            .stat-card {
                padding: var(--spacing-lg);
            }
            .stat-card .stat-value {
                font-size: 1.8rem;
            }
        }

        /* ========== DATA TABLE LIST ========== */
        .data-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        .data-list-item {
            display: flex;
            align-items: center;
            gap: var(--spacing-lg);
            background: var(--color-surface);
            border-radius: var(--radius-md);
            padding: var(--spacing-md) var(--spacing-lg);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .data-list-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--color-border);
            background: #fafbfc;
        }
        .data-list-item .dl-rank {
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--color-accent);
            min-width: 40px;
            text-align: center;
            font-family: var(--font-mono);
        }
        .data-list-item .dl-info {
            flex: 1;
            min-width: 0;
        }
        .data-list-item .dl-title {
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-text-strong);
        }
        .data-list-item .dl-sub {
            font-size: 0.85rem;
            color: var(--color-text-weak);
            margin-top: 2px;
        }
        .data-list-item .dl-value {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-primary);
            white-space: nowrap;
            font-family: var(--font-mono);
        }
        .data-list-item .dl-badge {
            padding: 5px 12px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 700;
            white-space: nowrap;
        }
        .dl-badge.up {
            background: #e6f7ee;
            color: #1a6e3e;
        }
        .dl-badge.down {
            background: #fde8e8;
            color: #b53434;
        }
        .dl-badge.stable {
            background: #eef2f7;
            color: #556;
        }

        @media (max-width: 600px) {
            .data-list-item {
                flex-wrap: wrap;
                gap: var(--spacing-md);
                padding: var(--spacing-md);
            }
            .data-list-item .dl-rank {
                min-width: 28px;
                font-size: 1.1rem;
            }
        }

        /* ========== BUTTONS ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 22px;
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.2px;
            transition: all var(--transition-fast);
            cursor: pointer;
            border: 2px solid transparent;
            white-space: nowrap;
            text-decoration: none;
            line-height: 1.3;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }
        .btn-primary:hover {
            background: var(--color-primary-light);
            border-color: var(--color-primary-light);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-accent {
            background: var(--color-accent);
            color: #fff;
            border-color: var(--color-accent);
        }
        .btn-accent:hover {
            background: var(--color-accent-dark);
            border-color: var(--color-accent-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border-color: var(--color-primary);
        }
        .btn-outline:hover {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            box-shadow: var(--shadow-sm);
        }
        .btn-lg {
            padding: 14px 30px;
            font-size: 1.05rem;
            border-radius: var(--radius-lg);
        }
        .btn-sm {
            padding: 7px 14px;
            font-size: 0.85rem;
            border-radius: var(--radius-sm);
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }
        .faq-item {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: var(--spacing-lg);
            font-weight: 700;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: var(--spacing-md);
            color: var(--color-text-strong);
            background: transparent;
            width: 100%;
            text-align: left;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            transition: transform var(--transition-base);
            color: var(--color-text-muted);
            font-size: 0.9rem;
        }
        .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-base);
            padding: 0 var(--spacing-lg);
            color: var(--color-text-weak);
            line-height: 1.75;
            font-size: 0.95rem;
        }
        .faq-item.open .faq-answer {
            max-height: 600px;
            padding: 0 var(--spacing-lg) var(--spacing-lg);
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(145deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            color: #fff;
            text-align: center;
            padding: var(--spacing-4xl) 0;
            border-radius: var(--radius-xl);
            margin: var(--spacing-2xl) auto;
            max-width: var(--container-max);
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -15%;
            width: 400px;
            height: 400px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2rem;
            margin-bottom: var(--spacing-md);
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto var(--spacing-xl);
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .cta-section {
                margin: var(--spacing-xl) var(--spacing-md);
                border-radius: var(--radius-lg);
                padding: var(--spacing-2xl) var(--spacing-lg);
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section p {
                font-size: 1rem;
            }
        }

        /* ========== INFO BLOCK ========== */
        .info-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-3xl);
            align-items: center;
        }
        .info-block.reverse {
            direction: rtl;
        }
        .info-block.reverse .info-block-text {
            direction: ltr;
        }
        .info-block-img {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            aspect-ratio: 4/3;
            background: var(--color-bg-alt);
        }
        .info-block-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-xl);
        }
        .info-block-text h2 {
            margin-bottom: var(--spacing-md);
        }
        .info-block-text p {
            color: var(--color-text-weak);
            line-height: 1.8;
            margin-bottom: var(--spacing-md);
        }
        .info-block-text .feature-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
            margin-bottom: var(--spacing-lg);
        }
        .info-block-text .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--color-text);
        }
        .info-block-text .feature-list li i {
            color: var(--color-accent);
            margin-top: 3px;
            flex-shrink: 0;
        }

        @media (max-width: 768px) {
            .info-block {
                grid-template-columns: 1fr;
                gap: var(--spacing-xl);
            }
            .info-block.reverse {
                direction: ltr;
            }
            .info-block-img {
                aspect-ratio: 16/10;
            }
        }

        /* ========== SECTION HEADER ========== */
        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-3xl);
        }
        .section-header .section-badge {
            display: inline-block;
            padding: 6px 14px;
            background: rgba(212, 168, 67, 0.12);
            color: #8b6914;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.85rem;
            letter-spacing: 0.5px;
            margin-bottom: var(--spacing-md);
        }
        .section-header h2 {
            margin-bottom: var(--spacing-sm);
        }
        .section-header .section-desc {
            color: var(--color-text-weak);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0f1e2d;
            color: #c5cdd6;
            padding: var(--spacing-4xl) 0 var(--spacing-xl);
            margin-top: auto;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-3xl);
            margin-bottom: var(--spacing-2xl);
        }
        .site-footer h3 {
            color: #fff;
            font-size: 1.3rem;
            margin-bottom: var(--spacing-md);
        }
        .site-footer h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: var(--spacing-md);
            font-weight: 700;
        }
        .site-footer p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: #9aa5b0;
        }
        .site-footer ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .site-footer ul li a {
            color: #9aa5b0;
            font-size: 0.9rem;
            transition: color var(--transition-fast);
            text-decoration: none;
        }
        .site-footer ul li a:hover {
            color: var(--color-accent-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: var(--spacing-lg);
            text-align: center;
            font-size: 0.85rem;
            color: #7a8894;
        }
        @media (max-width: 900px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-xl);
            }
        }
        @media (max-width: 520px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
        }

        /* ========== MISC ========== */
        .divider {
            border: none;
            border-top: 1px solid var(--color-border-light);
            margin: var(--spacing-2xl) 0;
        }
        .highlight-box {
            background: #fefdf7;
            border: 1px solid #f0e4b8;
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            display: flex;
            align-items: flex-start;
            gap: var(--spacing-md);
        }
        .highlight-box .hb-icon {
            font-size: 1.6rem;
            color: var(--color-accent);
            flex-shrink: 0;
            margin-top: 2px;
        }
        .highlight-box p {
            font-size: 0.95rem;
            color: #5c4a1f;
            line-height: 1.7;
        }
        .highlight-box strong {
            color: #3b2e0f;
        }

        @media (max-width: 520px) {
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .section {
                padding: var(--spacing-2xl) 0;
            }
            .container,
            .container-wide,
            .container-narrow {
                padding: 0 var(--spacing-md);
            }
        }

/* roulang page: category5 */
:root {
            --color-primary: #1a3a5c;
            --color-primary-light: #2c5f8a;
            --color-accent: #c8963e;
            --color-accent-light: #e0b865;
            --color-accent-dark: #a67c2e;
            --color-bg: #f9f7f4;
            --color-bg-white: #ffffff;
            --color-bg-light: #f2efe8;
            --color-bg-dark: #1b1f2a;
            --color-text: #1e1e1e;
            --color-text-soft: #5a5a5a;
            --color-text-light: #7a7a7a;
            --color-text-inverse: #f5f5f5;
            --color-border: #e0dcd2;
            --color-border-light: #ece8df;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --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, 0.1);
            --shadow-card: 0 2px 10px rgba(0, 0, 0, 0.06), 0 6px 20px rgba(0, 0, 0, 0.05);
            --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: 1200px;
            --max-width-wide: 1280px;
        }

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

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

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

        a {
            color: var(--color-primary-light);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
        }
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        ul {
            list-style: none;
        }

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

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

        /* ============ HEADER ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-primary);
            white-space: nowrap;
            transition: color var(--transition-fast);
        }
        .logo-link:hover {
            color: var(--color-accent);
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 1.1rem;
            transition: background var(--transition-fast);
        }
        .logo-link:hover .logo-icon {
            background: var(--color-accent);
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-desktop li a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-soft);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-desktop li a:hover {
            color: var(--color-primary);
            background: var(--color-bg-light);
        }
        .nav-desktop li a.active {
            color: var(--color-accent);
            font-weight: 600;
            background: rgba(200, 150, 62, 0.08);
        }
        .nav-cta {
            background: var(--color-accent) !important;
            color: #fff !important;
            font-weight: 600 !important;
            padding: 9px 20px !important;
            border-radius: 24px !important;
            transition: all var(--transition-fast) !important;
        }
        .nav-cta:hover {
            background: var(--color-accent-dark) !important;
            color: #fff !important;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(200, 150, 62, 0.35);
        }
        .mobile-toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--color-primary);
            padding: 8px;
            border-radius: var(--radius-sm);
        }
        .mobile-toggle:hover {
            color: var(--color-accent);
            background: var(--color-bg-light);
        }
        @media (max-width: 1024px) {
            .nav-desktop {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-desktop.mobile-open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                padding: 16px 24px;
                gap: 2px;
                z-index: 999;
            }
            .nav-desktop.mobile-open li a {
                display: block;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                font-size: 1rem;
            }
        }

        /* ============ PAGE BANNER ============ */
        .page-banner {
            background: linear-gradient(170deg, #1a3a5c 0%, #1f4468 30%, #254f7a 60%, #1b3a58 100%);
            color: #fff;
            padding: 64px 0 56px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 320px;
            height: 320px;
            background: rgba(200, 150, 62, 0.1);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -50px;
            left: -60px;
            width: 240px;
            height: 240px;
            background: rgba(200, 150, 62, 0.07);
            border-radius: 50%;
            pointer-events: none;
        }
        .banner-content {
            position: relative;
            z-index: 1;
            max-width: 760px;
            margin: 0 auto;
        }
        .banner-badge {
            display: inline-block;
            background: rgba(200, 150, 62, 0.2);
            color: var(--color-accent-light);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }
        .page-banner h1 {
            font-size: 2.5rem;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }
        .page-banner .banner-sub {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.82);
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .page-banner {
                padding: 42px 0 38px;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner .banner-sub {
                font-size: 0.95rem;
            }
        }

        /* ============ SECTION COMMON ============ */
        .section {
            padding: 60px 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-title h2 {
            font-size: 1.85rem;
            color: var(--color-primary);
            margin-bottom: 10px;
        }
        .section-title .title-line {
            display: block;
            width: 48px;
            height: 3px;
            background: var(--color-accent);
            margin: 10px auto 0;
            border-radius: 2px;
        }
        .section-title p {
            color: var(--color-text-soft);
            font-size: 0.98rem;
            max-width: 600px;
            margin: 0 auto;
        }

        /* ============ TIPS CARDS GRID ============ */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .tip-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .tip-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-accent-light);
        }
        .tip-card-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            background: rgba(26, 58, 92, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--color-accent);
            flex-shrink: 0;
        }
        .tip-card h3 {
            font-size: 1.15rem;
            color: var(--color-primary);
        }
        .tip-card p {
            color: var(--color-text-soft);
            font-size: 0.93rem;
            line-height: 1.65;
        }
        .tip-card .tip-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--color-accent);
            background: rgba(200, 150, 62, 0.08);
            padding: 3px 10px;
            border-radius: 12px;
            align-self: flex-start;
        }
        @media (max-width: 1024px) {
            .tips-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .tips-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ DETAILED TIPS SECTION ============ */
        .detail-tips-section {
            background: var(--color-bg-white);
            border-radius: var(--radius-xl);
            padding: 44px 36px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border-light);
        }
        .detail-tip-item {
            display: flex;
            gap: 22px;
            padding: 24px 0;
            border-bottom: 1px solid var(--color-border-light);
            align-items: flex-start;
        }
        .detail-tip-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .detail-tip-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .detail-tip-body h4 {
            font-size: 1.1rem;
            color: var(--color-primary);
            margin-bottom: 6px;
        }
        .detail-tip-body p {
            color: var(--color-text-soft);
            font-size: 0.93rem;
            line-height: 1.7;
        }
        @media (max-width: 576px) {
            .detail-tips-section {
                padding: 24px 16px;
            }
            .detail-tip-item {
                flex-direction: column;
                gap: 10px;
            }
        }

        /* ============ IMAGE BLOCK ============ */
        .image-block {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .image-block img {
            width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-lg);
        }
        .two-col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
        }
        @media (max-width: 768px) {
            .two-col {
                grid-template-columns: 1fr;
            }
        }

        /* ============ FLOW STEPS ============ */
        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }
        .flow-step {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 18px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .flow-step:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }
        .flow-step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 10px;
        }
        .flow-step h4 {
            font-size: 1rem;
            color: var(--color-primary);
            margin-bottom: 6px;
        }
        .flow-step p {
            font-size: 0.85rem;
            color: var(--color-text-soft);
        }
        @media (max-width: 1024px) {
            .flow-steps {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .flow-steps {
                grid-template-columns: 1fr;
            }
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            background: linear-gradient(135deg, #1a3a5c 0%, #224c72 50%, #1b3a58 100%);
            color: #fff;
            text-align: center;
            padding: 56px 0;
            border-radius: var(--radius-xl);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 200px;
            height: 200px;
            background: rgba(200, 150, 62, 0.1);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 1.7rem;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-cta {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            padding: 13px 32px;
            border-radius: 28px;
            transition: all var(--transition-fast);
            position: relative;
            z-index: 1;
        }
        .btn-cta:hover {
            background: var(--color-accent-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 22px rgba(200, 150, 62, 0.4);
        }

        /* ============ RELATED CARDS ============ */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .related-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card-body {
            padding: 16px 18px;
        }
        .related-card-body h4 {
            font-size: 1rem;
            color: var(--color-primary);
            margin-bottom: 6px;
        }
        .related-card-body p {
            font-size: 0.85rem;
            color: var(--color-text-soft);
            line-height: 1.5;
        }
        .related-card-body .card-link {
            display: inline-block;
            margin-top: 8px;
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--color-accent);
            transition: color var(--transition-fast);
        }
        .related-card-body .card-link:hover {
            color: var(--color-accent-dark);
        }
        @media (max-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .related-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ FAQ ============ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-bg-white);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            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);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .faq-question i {
            font-size: 0.85rem;
            color: var(--color-accent);
            transition: transform var(--transition-base);
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            display: none;
            padding: 0 22px 18px;
            font-size: 0.93rem;
            color: var(--color-text-soft);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: #1a1d26;
            color: #c5c5c5;
            padding: 48px 0 28px;
            margin-top: 20px;
            border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand h3 {
            color: #fff;
            font-size: 1.2rem;
            margin-bottom: 10px;
        }
        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.6;
            color: #a0a0a0;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            margin-bottom: 10px;
        }
        .footer-col ul li {
            margin-bottom: 7px;
        }
        .footer-col ul li a {
            color: #a0a0a0;
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent-light);
        }
        .footer-bottom {
            text-align: center;
            padding-top: 18px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.82rem;
            color: #888;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ UTILITY ============ */
        .text-accent {
            color: var(--color-accent);
        }
        .bg-light {
            background: var(--color-bg-light);
        }
        .bg-white-block {
            background: var(--color-bg-white);
            border-radius: var(--radius-xl);
            padding: 40px 32px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border-light);
        }
        @media (max-width: 576px) {
            .bg-white-block {
                padding: 20px 14px;
                border-radius: var(--radius-md);
            }
        }

/* roulang page: category6 */
:root {
            --primary: #1a3c5e;
            --primary-dark: #0f2a45;
            --primary-light: #2a5580;
            --accent: #c8963e;
            --accent-light: #e0b860;
            --accent-dark: #a0782e;
            --bg-white: #ffffff;
            --bg-light: #f7f8fa;
            --bg-lighter: #f0f2f5;
            --bg-soft: #e8ecf1;
            --text-main: #1a1a1a;
            --text-body: #333333;
            --text-muted: #6b7280;
            --text-light: #9ca3af;
            --border: #e2e6ea;
            --border-light: #eef0f3;
            --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, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 56px;
            --spacing-2xl: 72px;
            --spacing-3xl: 96px;
            --max-width: 1200px;
            --max-width-wide: 1280px;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
        }

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

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

        body {
            font-family: var(--font-body);
            color: var(--text-body);
            background-color: var(--bg-white);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: none;
        }

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

        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 3px;
        }

        ul {
            list-style: none;
        }

        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 {
            font-family: var(--font-heading);
            color: var(--text-main);
            line-height: 1.35;
            font-weight: 700;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: var(--spacing-md);
            padding-right: var(--spacing-md);
        }

        .container-wide {
            width: 100%;
            max-width: var(--max-width-wide);
            margin: 0 auto;
            padding-left: var(--spacing-md);
            padding-right: var(--spacing-md);
        }

        .container-narrow {
            width: 100%;
            max-width: 860px;
            margin: 0 auto;
            padding-left: var(--spacing-md);
            padding-right: var(--spacing-md);
        }

        .section {
            padding: var(--spacing-2xl) 0;
        }

        .section-sm {
            padding: var(--spacing-xl) 0;
        }

        .section-lg {
            padding: var(--spacing-3xl) 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-xl);
        }

        .section-header h2 {
            font-size: 2rem;
            margin-bottom: var(--spacing-xs);
            color: var(--primary-dark);
            letter-spacing: -0.01em;
        }

        .section-header .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.6;
        }

        .section-tag {
            display: inline-block;
            background: linear-gradient(135deg, rgba(200, 150, 62, 0.12) 0%, rgba(200, 150, 62, 0.06) 100%);
            color: var(--accent-dark);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 5px 14px;
            border-radius: var(--radius-full);
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.02em;
        }

        /* ========== 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-light);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: var(--spacing-md);
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 9px;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary-dark);
            letter-spacing: 0.02em;
            white-space: nowrap;
            flex-shrink: 0;
            transition: color var(--transition-fast);
        }

        .logo-link:hover {
            color: var(--primary);
        }

        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius-md);
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

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

        .nav-desktop li a {
            display: inline-block;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-body);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-desktop li a:hover {
            color: var(--primary);
            background: rgba(26, 60, 94, 0.05);
        }

        .nav-desktop li a.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(26, 60, 94, 0.07);
        }

        .nav-desktop li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2.5px;
            background: var(--accent);
            border-radius: 2px;
        }

        .nav-cta {
            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%) !important;
            color: #fff !important;
            font-weight: 600 !important;
            padding: 9px 18px !important;
            border-radius: var(--radius-full) !important;
            margin-left: 6px;
            box-shadow: 0 2px 8px rgba(200, 150, 62, 0.3);
            transition: all var(--transition-base) !important;
        }

        .nav-cta:hover {
            box-shadow: 0 4px 16px rgba(200, 150, 62, 0.45) !important;
            transform: translateY(-1px);
            color: #fff !important;
            background: linear-gradient(135deg, var(--accent-dark) 0%, var(--accent) 100%) !important;
        }

        .nav-cta.active::after {
            display: none !important;
        }

        .mobile-toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            font-size: 1.3rem;
            color: var(--primary-dark);
            background: transparent;
            border: 1px solid var(--border);
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .mobile-toggle:hover {
            background: var(--bg-lighter);
            border-color: var(--primary-light);
        }

        /* ========== HERO ========== */
        .page-hero {
            position: relative;
            padding: var(--spacing-3xl) 0 var(--spacing-2xl);
            background: linear-gradient(170deg, #f0f4f8 0%, #e8edf3 30%, #f7f8fa 100%);
            overflow: hidden;
            text-align: center;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.18;
            z-index: 0;
        }

        .page-hero .container-narrow {
            position: relative;
            z-index: 1;
        }

        .page-hero .breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: var(--spacing-md);
            flex-wrap: wrap;
        }

        .page-hero .breadcrumb a {
            color: var(--primary);
            font-weight: 500;
        }

        .page-hero .breadcrumb a:hover {
            color: var(--primary-light);
        }

        .page-hero .breadcrumb .sep {
            color: var(--text-light);
            font-size: 0.7rem;
        }

        .page-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary-dark);
            margin-bottom: var(--spacing-sm);
            letter-spacing: -0.02em;
        }

        .page-hero .hero-desc {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto var(--spacing-md);
            line-height: 1.75;
        }

        .hero-stats-row {
            display: flex;
            gap: var(--spacing-lg);
            justify-content: center;
            flex-wrap: wrap;
            margin-top: var(--spacing-md);
        }

        .hero-stat-item {
            text-align: center;
            min-width: 100px;
        }

        .hero-stat-item .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: -0.02em;
        }

        .hero-stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        /* ========== CARDS GRID ========== */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: var(--spacing-md);
        }

        .cards-grid.cols-4 {
            grid-template-columns: repeat(4, 1fr);
        }

        .cards-grid.cols-3 {
            grid-template-columns: repeat(3, 1fr);
        }

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

        .card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

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

        .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
            background: var(--bg-lighter);
        }

        .card-body {
            padding: var(--spacing-md);
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-xs);
        }

        .card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 0;
        }

        .card-body p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        .card-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            background: rgba(26, 60, 94, 0.07);
            color: var(--primary);
            width: fit-content;
        }

        .card-link {
            font-weight: 600;
            color: var(--accent-dark);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition-fast);
            margin-top: auto;
        }

        .card-link:hover {
            color: var(--accent);
        }

        .card-link i {
            font-size: 0.75rem;
            transition: transform var(--transition-fast);
        }

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

        /* ========== ARTICLES LIST ========== */
        .articles-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .article-item {
            display: flex;
            gap: var(--spacing-md);
            align-items: flex-start;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            padding: var(--spacing-md);
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
        }

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

        .article-item-img {
            width: 160px;
            height: 110px;
            border-radius: var(--radius-md);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg-lighter);
        }

        .article-item-content {
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            gap: 6px;
            min-width: 0;
        }

        .article-item-content h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 0;
            line-height: 1.4;
        }

        .article-item-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.55;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-meta {
            font-size: 0.8rem;
            color: var(--text-light);
            display: flex;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
        }

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

        /* ========== STEPS / PROCESS ========== */
        .steps-container {
            display: flex;
            gap: var(--spacing-md);
            flex-wrap: wrap;
            justify-content: center;
        }

        .step-card {
            flex: 1;
            min-width: 220px;
            max-width: 280px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 2px solid var(--border-light);
            padding: var(--spacing-lg) var(--spacing-md);
            text-align: center;
            transition: all var(--transition-base);
            position: relative;
        }

        .step-card:hover {
            border-color: var(--accent-light);
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: var(--radius-full);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: #fff;
            font-weight: 800;
            font-size: 1.3rem;
            margin-bottom: var(--spacing-sm);
        }

        .step-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 6px;
        }

        .step-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        /* ========== STATS BAR ========== */
        .stats-bar {
            display: flex;
            gap: var(--spacing-lg);
            justify-content: center;
            flex-wrap: wrap;
            padding: var(--spacing-lg);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-xl);
            color: #fff;
        }

        .stats-bar .stat-block {
            text-align: center;
            min-width: 120px;
            flex: 1;
        }

        .stats-bar .stat-block .stat-value {
            font-size: 2.4rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--accent-light);
        }

        .stats-bar .stat-block .stat-unit {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 2px;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--spacing-md);
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--primary-dark);
            user-select: none;
            gap: var(--spacing-sm);
            transition: background var(--transition-fast);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: var(--radius-full);
            background: var(--bg-lighter);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--primary);
            transition: all var(--transition-base);
        }

        .faq-item.open .faq-question .faq-icon {
            background: var(--accent);
            color: #fff;
            transform: rotate(45deg);
        }

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

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 var(--spacing-md) var(--spacing-md);
        }

        .faq-answer p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(160deg, #f8f6f2 0%, #f0ece4 40%, #f7f4ef 100%);
            border-radius: var(--radius-xl);
            padding: var(--spacing-xl) var(--spacing-lg);
            text-align: center;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(200, 150, 62, 0.2);
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            z-index: 0;
        }

        .cta-section>* {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary-dark);
            margin-bottom: var(--spacing-sm);
        }

        .cta-section p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto var(--spacing-md);
            line-height: 1.6;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 12px 26px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-base);
            cursor: pointer;
            text-align: center;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
            color: #fff;
            box-shadow: 0 4px 14px rgba(200, 150, 62, 0.35);
        }

        .btn-primary:hover {
            box-shadow: 0 6px 22px rgba(200, 150, 62, 0.5);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary-light);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 1.08rem;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: var(--spacing-2xl) 0 var(--spacing-md);
            margin-top: var(--spacing-2xl);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }

        .footer-brand h3 {
            color: #fff;
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: var(--spacing-xs);
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.65);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 7px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--accent-light);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: var(--spacing-md);
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ========== MOBILE NAV ========== */
        .nav-mobile {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            z-index: 999;
            flex-direction: column;
            padding: var(--spacing-md);
            gap: 4px;
            overflow-y: auto;
        }

        .nav-mobile.active {
            display: flex;
        }

        .nav-mobile a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-body);
            transition: all var(--transition-fast);
        }

        .nav-mobile a:hover {
            background: var(--bg-lighter);
            color: var(--primary);
        }

        .nav-mobile a.active {
            background: rgba(26, 60, 94, 0.08);
            color: var(--primary);
            font-weight: 600;
        }

        .nav-mobile .nav-cta-mobile {
            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%) !important;
            color: #fff !important;
            text-align: center;
            font-weight: 600 !important;
            margin-top: var(--spacing-sm);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-md);
            }

            .cards-grid.cols-4 {
                grid-template-columns: repeat(2, 1fr);
            }

            .cards-grid.cols-3 {
                grid-template-columns: repeat(2, 1fr);
            }

            .page-hero h1 {
                font-size: 2.2rem;
            }

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

            .section-lg {
                padding: var(--spacing-2xl) 0;
            }

            .article-item-img {
                width: 130px;
                height: 95px;
            }

            .stats-bar {
                gap: var(--spacing-md);
                padding: var(--spacing-md);
            }

            .stats-bar .stat-block .stat-value {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }

            .mobile-toggle {
                display: flex;
            }

            .header-inner {
                height: 56px;
            }

            .page-hero {
                padding: var(--spacing-2xl) 0 var(--spacing-lg);
            }

            .page-hero h1 {
                font-size: 1.8rem;
            }

            .page-hero .hero-desc {
                font-size: 0.95rem;
            }

            .hero-stats-row {
                gap: var(--spacing-md);
            }

            .hero-stat-item .stat-num {
                font-size: 1.5rem;
            }

            .cards-grid.cols-4,
            .cards-grid.cols-3,
            .cards-grid.cols-2 {
                grid-template-columns: 1fr 1fr;
            }

            .section-header h2 {
                font-size: 1.5rem;
            }

            .article-item {
                flex-direction: column;
            }

            .article-item-img {
                width: 100%;
                height: 160px;
            }

            .steps-container {
                flex-direction: column;
                align-items: center;
            }

            .step-card {
                max-width: 100%;
                width: 100%;
            }

            .stats-bar {
                flex-direction: column;
                gap: var(--spacing-sm);
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }

            .footer-brand {
                text-align: center;
            }

            .footer-col {
                text-align: center;
            }

            .cta-section {
                padding: var(--spacing-lg) var(--spacing-md);
            }

            .cta-section h2 {
                font-size: 1.4rem;
            }

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

            .section-lg {
                padding: var(--spacing-xl) 0;
            }

            .btn-lg {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .cards-grid.cols-4,
            .cards-grid.cols-3,
            .cards-grid.cols-2,
            .cards-grid {
                grid-template-columns: 1fr;
            }

            .page-hero h1 {
                font-size: 1.5rem;
            }

            .page-hero .hero-desc {
                font-size: 0.88rem;
            }

            .hero-stats-row {
                flex-direction: column;
                gap: var(--spacing-sm);
            }

            .section-header h2 {
                font-size: 1.3rem;
            }

            .container {
                padding-left: var(--spacing-sm);
                padding-right: var(--spacing-sm);
            }

            .container-wide {
                padding-left: var(--spacing-sm);
                padding-right: var(--spacing-sm);
            }

            .container-narrow {
                padding-left: var(--spacing-sm);
                padding-right: var(--spacing-sm);
            }

            .article-item-img {
                height: 140px;
            }

            .card-body {
                padding: var(--spacing-sm);
            }

            .btn {
                padding: 10px 20px;
                font-size: 0.9rem;
            }

            .btn-lg {
                padding: 11px 22px;
                font-size: 0.9rem;
            }

            .faq-question {
                font-size: 0.9rem;
                padding: var(--spacing-sm) var(--spacing-md);
            }

            .faq-answer p {
                font-size: 0.85rem;
            }

            .stats-bar .stat-block .stat-value {
                font-size: 1.5rem;
            }

            .site-footer {
                padding: var(--spacing-lg) 0 var(--spacing-sm);
                margin-top: var(--spacing-xl);
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #1a3c5e;
            --color-primary-dark: #0f2440;
            --color-accent: #d4a843;
            --color-accent-light: #f0d78c;
            --color-accent-dark: #b8922e;
            --color-bg: #f8f9fb;
            --color-white: #ffffff;
            --color-text: #1e293b;
            --color-text-weak: #64748b;
            --color-text-muted: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --color-card-bg: #ffffff;
            --color-success: #10b981;
            --color-warning: #f59e0b;
            --color-danger: #ef4444;
            --color-info: #3b82f6;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50px;
            --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);
            --transition-fast: 0.18s ease;
            --transition-normal: 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;
            --spacing-xs: 0.5rem;
            --spacing-sm: 0.75rem;
            --spacing-md: 1rem;
            --spacing-lg: 1.5rem;
            --spacing-xl: 2rem;
            --spacing-2xl: 3rem;
            --spacing-3xl: 4rem;
            --spacing-4xl: 5rem;
            --max-width: 1200px;
            --max-width-wide: 1280px;
            --header-height: 68px;
        }

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

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

        body {
            font-family: var(--font-sans);
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }

        ul {
            list-style: none;
        }

        input {
            font-family: inherit;
            font-size: inherit;
        }

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

        .container-wide {
            width: 100%;
            max-width: var(--max-width-wide);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }

        .container-narrow {
            width: 100%;
            max-width: 900px;
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            height: var(--header-height);
            display: flex;
            align-items: center;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            background: rgba(255, 255, 255, 0.97);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: var(--spacing-xl);
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 0.55rem;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-primary);
            white-space: nowrap;
            letter-spacing: -0.02em;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }

        .logo-link:hover {
            color: var(--color-accent-dark);
        }

        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            border-radius: var(--radius-md);
            color: var(--color-accent-light);
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 0.15rem;
            flex-wrap: nowrap;
        }

        .nav-desktop li a {
            display: block;
            padding: 0.5rem 0.85rem;
            font-size: 0.925rem;
            font-weight: 500;
            color: var(--color-text-weak);
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-desktop li a:hover {
            color: var(--color-primary);
            background: var(--color-border-light);
        }

        .nav-desktop li a.active {
            color: var(--color-white);
            background: var(--color-primary);
            font-weight: 600;
            box-shadow: var(--shadow-sm);
        }

        .nav-desktop li a.active:hover {
            background: var(--color-primary-dark);
            color: var(--color-white);
        }

        .nav-cta {
            background: var(--color-accent) !important;
            color: #fff !important;
            font-weight: 600 !important;
            padding: 0.55rem 1.2rem !important;
            border-radius: var(--radius-full) !important;
            box-shadow: var(--shadow-sm);
            margin-left: 0.5rem;
        }

        .nav-cta:hover {
            background: var(--color-accent-dark) !important;
            color: #fff !important;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .mobile-toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--color-primary);
            padding: 0.4rem;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-toggle:hover {
            background: var(--color-border-light);
        }

        /* ========== MOBILE NAV ========== */
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--color-white);
            z-index: 999;
            flex-direction: column;
            padding: var(--spacing-lg);
            overflow-y: auto;
            border-top: 1px solid var(--color-border);
            box-shadow: var(--shadow-xl);
        }

        .mobile-nav-panel.open {
            display: flex;
        }

        .mobile-nav-panel a {
            display: block;
            padding: 0.9rem 1rem;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--color-text);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            border-bottom: 1px solid var(--color-border-light);
        }

        .mobile-nav-panel a:hover,
        .mobile-nav-panel a.active {
            background: var(--color-primary);
            color: var(--color-white);
        }

        .mobile-nav-panel .nav-cta-mobile {
            background: var(--color-accent);
            color: #fff;
            text-align: center;
            font-weight: 600;
            margin-top: var(--spacing-md);
            border-radius: var(--radius-full);
            padding: 0.85rem 1.5rem;
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            background: linear-gradient(160deg, #0f2440 0%, #1a3c5e 35%, #1e4a6e 65%, #153048 100%);
            padding: var(--spacing-4xl) 0 var(--spacing-3xl);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.2;
            z-index: 1;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, rgba(15, 36, 64, 0.45) 0%, rgba(26, 60, 94, 0.7) 60%, rgba(15, 36, 64, 0.9) 100%);
            z-index: 2;
        }

        .page-banner .container {
            position: relative;
            z-index: 3;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: var(--spacing-md);
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(212, 168, 67, 0.2);
            border: 1px solid rgba(212, 168, 67, 0.4);
            color: var(--color-accent-light);
            padding: 0.4rem 1rem;
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.03em;
        }

        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: -0.03em;
            line-height: 1.25;
            max-width: 700px;
        }

        .page-banner .banner-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            line-height: 1.7;
        }

        .banner-stats-row {
            display: flex;
            gap: var(--spacing-2xl);
            margin-top: var(--spacing-md);
            flex-wrap: wrap;
        }

        .banner-stat-item {
            display: flex;
            flex-direction: column;
            gap: 0.2rem;
        }

        .banner-stat-item .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-accent-light);
            letter-spacing: -0.02em;
        }

        .banner-stat-item .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: var(--spacing-4xl) 0;
        }

        .section-alt {
            background: var(--color-white);
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-3xl);
        }

        .section-header .section-tag {
            display: inline-block;
            background: rgba(212, 168, 67, 0.12);
            color: var(--color-accent-dark);
            padding: 0.35rem 0.9rem;
            border-radius: var(--radius-full);
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: var(--spacing-sm);
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary-dark);
            letter-spacing: -0.02em;
            margin-bottom: var(--spacing-sm);
        }

        .section-header .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-weak);
            max-width: 550px;
            margin: 0 auto;
            line-height: 1.6;
        }

        /* ========== STRATEGY CARDS GRID ========== */
        .strategy-cards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-xl);
        }

        .strategy-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl) var(--spacing-lg);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
            position: relative;
            overflow: hidden;
        }

        .strategy-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-accent);
        }

        .strategy-card .card-icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            flex-shrink: 0;
        }

        .card-icon-blue {
            background: #e8f0fa;
            color: #1a3c5e;
        }
        .card-icon-gold {
            background: #fdf3d6;
            color: #b8922e;
        }
        .card-icon-green {
            background: #e6f7ee;
            color: #0d7a46;
        }
        .card-icon-purple {
            background: #f0e8f8;
            color: #5b3e96;
        }

        .strategy-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-primary-dark);
        }

        .strategy-card p {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            line-height: 1.65;
            flex-grow: 1;
        }

        .strategy-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-accent-dark);
            transition: gap var(--transition-fast);
            margin-top: auto;
        }

        .strategy-card .card-link:hover {
            gap: 0.6rem;
            color: var(--color-primary);
        }

        .card-top-stripe {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
            opacity: 0;
            transition: opacity var(--transition-normal);
        }

        .strategy-card:hover .card-top-stripe {
            opacity: 1;
        }

        /* ========== DETAIL STRATEGY ========== */
        .strategy-detail-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-3xl);
            align-items: center;
        }

        .strategy-detail-image {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            aspect-ratio: 4/3;
            position: relative;
        }

        .strategy-detail-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .strategy-detail-image:hover img {
            transform: scale(1.04);
        }

        .strategy-detail-content h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-primary-dark);
            margin-bottom: var(--spacing-md);
            letter-spacing: -0.02em;
        }

        .strategy-detail-content p {
            font-size: 1rem;
            color: var(--color-text-weak);
            line-height: 1.75;
            margin-bottom: var(--spacing-md);
        }

        .strategy-points {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
            margin-bottom: var(--spacing-lg);
        }

        .strategy-point {
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            font-size: 0.95rem;
            color: var(--color-text);
            line-height: 1.55;
        }

        .strategy-point i {
            color: var(--color-accent-dark);
            font-size: 1rem;
            margin-top: 0.2rem;
            flex-shrink: 0;
        }

        /* ========== MONEY MANAGEMENT TABLE ========== */
        .money-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border);
            background: var(--color-white);
        }

        .money-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 650px;
            font-size: 0.95rem;
        }

        .money-table thead th {
            background: var(--color-primary);
            color: #fff;
            padding: 1rem 1.2rem;
            text-align: left;
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .money-table tbody td {
            padding: 0.9rem 1.2rem;
            border-bottom: 1px solid var(--color-border-light);
            color: var(--color-text);
            font-weight: 500;
        }

        .money-table tbody tr:hover {
            background: #f8fafc;
        }

        .money-table tbody tr:last-child td {
            border-bottom: none;
        }

        .table-badge {
            display: inline-block;
            padding: 0.25rem 0.7rem;
            border-radius: var(--radius-full);
            font-size: 0.78rem;
            font-weight: 600;
        }

        .badge-safe {
            background: #e6f7ee;
            color: #0d7a46;
        }
        .badge-moderate {
            background: #fef3cd;
            color: #8a6d14;
        }
        .badge-aggressive {
            background: #fde8e8;
            color: #b91c1c;
        }

        /* ========== COMPARISON CARDS ========== */
        .comparison-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-xl);
        }

        .comparison-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            border: 2px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: all var(--transition-normal);
            position: relative;
        }

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

        .comparison-card.featured {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-md);
            background: linear-gradient(180deg, #fffef9 0%, #ffffff 100%);
        }

        .comparison-card .comp-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-accent);
            color: #fff;
            padding: 0.3rem 1rem;
            border-radius: var(--radius-full);
            font-size: 0.78rem;
            font-weight: 700;
            white-space: nowrap;
            letter-spacing: 0.04em;
        }

        .comparison-card h4 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-primary-dark);
            margin-bottom: var(--spacing-sm);
        }

        .comparison-card .comp-price {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-accent-dark);
            margin-bottom: var(--spacing-md);
        }

        .comparison-card .comp-price span {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-weak);
        }

        .comparison-card ul {
            text-align: left;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            margin-bottom: var(--spacing-lg);
        }

        .comparison-card ul li {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .comparison-card ul li i.fa-check {
            color: var(--color-success);
        }
        .comparison-card ul li i.fa-minus {
            color: var(--color-text-muted);
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

        .faq-question {
            width: 100%;
            padding: 1.1rem 1.4rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-primary-dark);
            background: transparent;
            text-align: left;
            gap: var(--spacing-md);
            cursor: pointer;
            transition: background var(--transition-fast);
        }

        .faq-question:hover {
            background: #f8fafc;
        }

        .faq-question i {
            flex-shrink: 0;
            color: var(--color-accent-dark);
            transition: transform var(--transition-normal);
            font-size: 0.9rem;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 1.4rem;
            font-size: 0.93rem;
            color: var(--color-text-weak);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 1.4rem 1.2rem;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(150deg, #1a3c5e 0%, #0f2440 50%, #1e4a6e 100%);
            padding: var(--spacing-4xl) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(212, 168, 67, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 250px;
            height: 250px;
            background: radial-gradient(circle, rgba(212, 168, 67, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            margin-bottom: var(--spacing-md);
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            max-width: 500px;
            margin: 0 auto var(--spacing-xl);
            line-height: 1.6;
        }

        .cta-buttons {
            display: flex;
            gap: var(--spacing-md);
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--color-accent);
            color: #fff;
            padding: 0.85rem 2rem;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1rem;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }

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

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
            color: #fff;
            padding: 0.8rem 2rem;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition-fast);
        }

        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--color-primary);
            padding: 0.7rem 1.6rem;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.9rem;
            border: 2px solid var(--color-primary);
            transition: all var(--transition-fast);
        }

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

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0d1e33;
            color: rgba(255, 255, 255, 0.75);
            padding: var(--spacing-3xl) 0 var(--spacing-lg);
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-2xl);
            margin-bottom: var(--spacing-2xl);
        }

        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-sm);
            letter-spacing: -0.02em;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.65;
            color: rgba(255, 255, 255, 0.6);
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: var(--spacing-md);
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 0.55rem;
        }

        .footer-col ul li a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        .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: var(--spacing-lg);
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.6;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1200px) {
            .strategy-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .comparison-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: var(--spacing-md);
            }
        }

        @media (max-width: 1024px) {
            .nav-desktop {
                gap: 0;
            }
            .nav-desktop li a {
                padding: 0.45rem 0.6rem;
                font-size: 0.85rem;
            }
            .strategy-detail-block {
                grid-template-columns: 1fr;
                gap: var(--spacing-xl);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .comparison-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .comparison-card:last-child {
                grid-column: span 2;
                max-width: 400px;
                justify-self: center;
            }
            .page-banner h1 {
                font-size: 2.1rem;
            }
        }

        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .strategy-cards-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-md);
            }
            .comparison-grid {
                grid-template-columns: 1fr;
                max-width: 450px;
                margin: 0 auto;
            }
            .comparison-card:last-child {
                grid-column: span 1;
                max-width: 100%;
                justify-self: auto;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-xl);
            }
            .page-banner {
                padding: var(--spacing-3xl) 0 var(--spacing-2xl);
                min-height: 260px;
            }
            .page-banner h1 {
                font-size: 1.7rem;
            }
            .banner-stats-row {
                gap: var(--spacing-lg);
            }
            .banner-stat-item .stat-num {
                font-size: 1.5rem;
            }
            .section-header h2 {
                font-size: 1.55rem;
            }
            .strategy-detail-content h3 {
                font-size: 1.3rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .logo-link {
                font-size: 1.15rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .section {
                padding: var(--spacing-3xl) 0;
            }
            .section-header {
                margin-bottom: var(--spacing-2xl);
            }
        }

        @media (max-width: 520px) {
            .strategy-cards-grid {
                grid-template-columns: 1fr;
                max-width: 380px;
                margin: 0 auto;
            }
            .banner-stats-row {
                flex-direction: column;
                gap: var(--spacing-sm);
            }
            .page-banner h1 {
                font-size: 1.4rem;
            }
            .page-banner .banner-desc {
                font-size: 0.9rem;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .strategy-detail-content h3 {
                font-size: 1.15rem;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary,
            .btn-outline-light {
                width: 100%;
                justify-content: center;
            }
            .money-table thead th,
            .money-table tbody td {
                padding: 0.65rem 0.7rem;
                font-size: 0.8rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 0.9rem 1rem;
            }
            .faq-answer {
                font-size: 0.85rem;
            }
        }