/* roulang page: index */
:root {
            --color-primary: #1a365d;
            --color-primary-light: #2c5282;
            --color-primary-dark: #0f2440;
            --color-accent: #c9a96e;
            --color-accent-light: #d4b87a;
            --color-accent-dark: #b8944f;
            --color-bg: #ffffff;
            --color-bg-alt: #f7f8fa;
            --color-bg-dark: #1a1f2b;
            --color-text: #1e1e1e;
            --color-text-weak: #6b7280;
            --color-text-light: #9ca3af;
            --color-border: #e5e7eb;
            --color-border-light: #f0f1f3;
            --color-white: #ffffff;
            --color-success: #10b981;
            --color-warning: #f59e0b;
            --color-danger: #ef4444;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.07), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.10), 0 4px 10px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 50px 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: 0.40s ease;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --max-width: 1240px;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.65;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }
        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.3;
            font-weight: 700;
            color: var(--color-primary-dark);
        }
        p {
            margin: 0 0 1em 0;
        }

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

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            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: 64px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            gap: 20px;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .header-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--color-primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-white);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }
        .header-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-text-weak);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .header-nav a:hover {
            color: var(--color-primary);
            background: rgba(26, 54, 93, 0.04);
        }
        .header-nav a.active {
            color: var(--color-primary);
            background: rgba(26, 54, 93, 0.07);
            font-weight: 700;
        }
        .header-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 16px;
            right: 16px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px 3px 0 0;
        }
        .header-cta {
            flex-shrink: 0;
        }
        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            background: var(--color-accent);
            color: var(--color-white);
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .btn-header:hover {
            background: var(--color-accent-dark);
            color: var(--color-white);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-primary);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: background var(--transition-fast);
        }
        .hamburger-btn:hover {
            background: rgba(26, 54, 93, 0.06);
        }

        /* Mobile nav panel */
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--color-white);
            z-index: 999;
            flex-direction: column;
            padding: 20px 24px;
            gap: 4px;
            overflow-y: auto;
            border-top: 1px solid var(--color-border-light);
        }
        .mobile-nav-panel.open {
            display: flex;
        }
        .mobile-nav-panel a {
            display: block;
            padding: 14px 18px;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-text);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }
        .mobile-nav-panel a:hover,
        .mobile-nav-panel a.active {
            background: rgba(26, 54, 93, 0.06);
            color: var(--color-primary);
        }
        .mobile-nav-panel .mobile-cta {
            margin-top: 12px;
            display: block;
            text-align: center;
            padding: 14px 20px;
            background: var(--color-accent);
            color: var(--color-white);
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 1rem;
        }

        /* ========== HERO ========== */
        .hero-section {
            display: flex;
            min-height: 560px;
            background: var(--color-bg-alt);
            position: relative;
            overflow: hidden;
        }
        .hero-left {
            flex: 1 1 52%;
            display: flex;
            align-items: center;
            padding: 60px 40px 60px 24px;
            z-index: 2;
            position: relative;
        }
        .hero-left-inner {
            max-width: 620px;
            margin-left: auto;
            padding-right: 20px;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 14px;
            background: rgba(201, 169, 110, 0.13);
            color: var(--color-accent-dark);
            font-weight: 700;
            font-size: 0.85rem;
            border-radius: 20px;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }
        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--color-primary-dark);
            line-height: 1.18;
            margin-bottom: 18px;
            letter-spacing: -0.02em;
        }
        .hero-title span {
            color: var(--color-accent);
            position: relative;
        }
        .hero-desc {
            font-size: 1.1rem;
            color: var(--color-text-weak);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 500px;
        }
        .hero-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            background: var(--color-primary);
            color: var(--color-white);
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            letter-spacing: 0.01em;
        }
        .btn-primary:hover {
            background: var(--color-primary-light);
            color: var(--color-white);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
        }
        .btn-outline:hover {
            background: var(--color-primary);
            color: var(--color-white);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }
        .hero-right {
            flex: 1 1 48%;
            position: relative;
            min-height: 400px;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            clip-path: polygon(8% 0, 100% 0, 100% 100%, 0 100%);
        }
        .hero-right::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 54, 93, 0.35) 0%, rgba(26, 54, 93, 0.08) 60%);
        }
        .hero-stats-row {
            display: flex;
            gap: 24px;
            margin-top: 20px;
            flex-wrap: wrap;
        }
        .hero-stat-item {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .hero-stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1;
        }
        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--color-text-weak);
            line-height: 1.3;
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 70px 0;
        }
        .section-alt {
            background: var(--color-bg-alt);
        }
        .section-dark {
            background: var(--color-bg-dark);
            color: #d1d5db;
        }
        .section-dark h2,
        .section-dark h3 {
            color: #f9fafb;
        }
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .section-header .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-weak);
            max-width: 560px;
            margin: 0 auto;
        }
        .section-header-left {
            text-align: left;
            margin-bottom: 40px;
        }
        .section-header-left h2 {
            font-size: 1.9rem;
            font-weight: 800;
            margin-bottom: 8px;
        }

        /* ========== STATS BAR ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-accent);
        }
        .stat-card .stat-icon {
            font-size: 2.2rem;
            color: var(--color-accent);
            margin-bottom: 10px;
        }
        .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-weak);
            font-weight: 500;
        }

        /* ========== ADVANTAGE CARDS ========== */
        .advantage-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .adv-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 32px 26px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            text-align: center;
        }
        .adv-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-accent);
        }
        .adv-card .adv-icon-wrap {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: rgba(201, 169, 110, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.6rem;
            color: var(--color-accent-dark);
            transition: all var(--transition-normal);
        }
        .adv-card:hover .adv-icon-wrap {
            background: var(--color-accent);
            color: var(--color-white);
            transform: scale(1.08);
        }
        .adv-card h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            font-weight: 700;
        }
        .adv-card p {
            font-size: 0.93rem;
            color: var(--color-text-weak);
            line-height: 1.6;
            margin: 0;
        }

        /* ========== BRAND STORY ========== */
        .brand-story-wrap {
            display: flex;
            gap: 40px;
            align-items: center;
            flex-wrap: wrap;
        }
        .brand-story-img {
            flex: 1 1 400px;
            min-height: 340px;
            border-radius: var(--radius-xl);
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .brand-story-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26, 54, 93, 0.15) 0%, rgba(26, 54, 93, 0.35) 100%);
        }
        .brand-story-text {
            flex: 1 1 380px;
        }
        .brand-story-text h2 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .brand-story-text p {
            font-size: 1rem;
            color: var(--color-text-weak);
            line-height: 1.8;
            margin-bottom: 12px;
        }

        /* ========== CATEGORY CARDS ========== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .cat-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
        }
        .cat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-xl);
        }
        .cat-card-img {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .cat-card-img .cat-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-accent);
            color: var(--color-white);
            padding: 4px 12px;
            border-radius: 14px;
            font-size: 0.78rem;
            font-weight: 700;
        }
        .cat-card-body {
            padding: 20px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .cat-card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .cat-card-body p {
            font-size: 0.88rem;
            color: var(--color-text-weak);
            line-height: 1.55;
            margin-bottom: 14px;
            flex: 1;
        }
        .cat-card-link {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--color-accent-dark);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: gap var(--transition-fast);
        }
        .cat-card-link:hover {
            gap: 10px;
            color: var(--color-accent-dark);
        }

        /* ========== FOCUS MATCHES ========== */
        .matches-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .match-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
        }
        .match-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .match-card-img {
            height: 160px;
            background-size: cover;
            background-position: center;
        }
        .match-card-body {
            padding: 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .match-card-body h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .match-card-body .match-date {
            font-size: 0.8rem;
            color: var(--color-text-light);
            margin-bottom: 8px;
        }
        .match-card-body p {
            font-size: 0.88rem;
            color: var(--color-text-weak);
            line-height: 1.5;
            margin-bottom: 12px;
            flex: 1;
        }
        .match-tag-row {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .match-tag {
            padding: 4px 10px;
            background: rgba(26, 54, 93, 0.06);
            color: var(--color-primary);
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        /* ========== PARTNERS ========== */
        .partners-row {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
            align-items: center;
        }
        .partner-item {
            background: var(--color-white);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            padding: 20px 28px;
            font-weight: 700;
            color: var(--color-text-weak);
            font-size: 1rem;
            transition: all var(--transition-fast);
            min-width: 120px;
            text-align: center;
            box-shadow: var(--shadow-sm);
        }
        .partner-item:hover {
            color: var(--color-primary);
            border-color: var(--color-accent);
            box-shadow: var(--shadow-md);
        }

        /* ========== TESTIMONIALS ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .testimonial-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 26px 22px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            position: relative;
        }
        .testimonial-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .testimonial-card .quote-mark {
            font-size: 3rem;
            color: var(--color-accent);
            opacity: 0.5;
            line-height: 1;
            margin-bottom: -10px;
            font-family: Georgia, serif;
        }
        .testimonial-card p {
            font-size: 0.93rem;
            color: var(--color-text-weak);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .testimonial-author {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--color-primary);
        }
        .testimonial-role {
            font-size: 0.8rem;
            color: var(--color-text-light);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-sm);
        }
        .faq-item:hover {
            border-color: #d1d5db;
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            background: none;
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-primary-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            cursor: pointer;
            border: none;
            transition: background var(--transition-fast);
        }
        .faq-question:hover {
            background: rgba(26, 54, 93, 0.03);
        }
        .faq-question .faq-arrow {
            transition: transform var(--transition-normal);
            font-size: 0.8rem;
            color: var(--color-accent);
            flex-shrink: 0;
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 22px 18px;
        }
        .faq-answer p {
            font-size: 0.93rem;
            color: var(--color-text-weak);
            line-height: 1.75;
            margin: 0;
        }

        /* ========== NEWS ========== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .news-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .news-card-img {
            height: 170px;
            background-size: cover;
            background-position: center;
        }
        .news-card-body {
            padding: 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card-body .news-date {
            font-size: 0.78rem;
            color: var(--color-text-light);
            margin-bottom: 6px;
        }
        .news-card-body h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .news-card-body p {
            font-size: 0.88rem;
            color: var(--color-text-weak);
            line-height: 1.55;
            margin-bottom: 12px;
            flex: 1;
        }
        .btn-read-more {
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--color-accent-dark);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: gap var(--transition-fast);
        }
        .btn-read-more:hover {
            gap: 9px;
            color: var(--color-accent-dark);
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--color-primary);
            color: var(--color-white);
            text-align: center;
            padding: 60px 24px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 300px;
            height: 300px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 220px;
            height: 220px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
        }
        .cta-section h2 {
            color: var(--color-white);
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            background: var(--color-accent);
            color: var(--color-white);
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition-fast);
            position: relative;
            z-index: 1;
            letter-spacing: 0.02em;
        }
        .btn-cta-large:hover {
            background: var(--color-accent-light);
            color: var(--color-white);
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-bg-dark);
            color: #c5c9d0;
            padding: 50px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-col h4 {
            color: #f9fafb;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: #c5c9d0;
            font-size: 0.9rem;
            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, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: #9ca3af;
        }
        .footer-logo-text {
            font-weight: 800;
            font-size: 1.2rem;
            color: #f9fafb;
            margin-bottom: 8px;
            display: block;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-section {
                flex-direction: column;
                min-height: auto;
            }
            .hero-left {
                flex: 1 1 auto;
                padding: 44px 24px;
                order: 1;
            }
            .hero-left-inner {
                margin: 0 auto;
                padding-right: 0;
                text-align: center;
            }
            .hero-right {
                flex: 1 1 auto;
                min-height: 320px;
                clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
                order: 0;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-desc {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-buttons {
                justify-content: center;
            }
            .hero-stats-row {
                justify-content: center;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .advantage-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .matches-list {
                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: repeat(2, 1fr);
            }
            .header-nav {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .hamburger-btn {
                display: block;
            }
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-right {
                min-height: 240px;
            }
            .section {
                padding: 44px 0;
            }
            .section-header h2 {
                font-size: 1.55rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-card .stat-number {
                font-size: 1.8rem;
            }
            .advantage-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .category-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .matches-list {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .news-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .brand-story-wrap {
                flex-direction: column;
                gap: 24px;
            }
            .brand-story-img {
                min-height: 250px;
                flex: 1 1 auto;
                width: 100%;
            }
            .brand-story-text {
                flex: 1 1 auto;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .header-inner {
                height: 56px;
                padding: 0 16px;
            }
            .mobile-nav-panel {
                top: 56px;
            }
        }
        @media (max-width: 520px) {
            .hero-left {
                padding: 30px 16px;
            }
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-right {
                min-height: 200px;
                clip-path: polygon(0 0, 100% 0, 100% 94%, 0 100%);
            }
            .hero-buttons {
                flex-direction: column;
                align-items: center;
                gap: 10px;
            }
            .btn-primary,
            .btn-outline {
                width: 100%;
                justify-content: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 16px 10px;
            }
            .stat-card .stat-number {
                font-size: 1.5rem;
            }
            .advantage-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .category-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .section-header h2 {
                font-size: 1.35rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .partners-row {
                gap: 10px;
            }
            .partner-item {
                padding: 14px 18px;
                font-size: 0.85rem;
                min-width: 90px;
            }
            .container-custom {
                padding: 0 14px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #0f2940;
            --color-primary-light: #1a3f5c;
            --color-accent: #c8963e;
            --color-accent-light: #d4a853;
            --color-accent-dark: #b07d2e;
            --color-cyan: #0ea5a0;
            --color-cyan-light: #14b8b0;
            --color-bg: #ffffff;
            --color-bg-light: #f7f8fa;
            --color-bg-card: #ffffff;
            --color-bg-dark: #0c1f30;
            --color-text: #1a1a1a;
            --color-text-secondary: #5a5c60;
            --color-text-muted: #8a8d94;
            --color-text-light: #b0b3b9;
            --color-border: #e2e4e9;
            --color-border-light: #eef0f4;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --header-height: 68px;
            --container-max: 1240px;
            --section-gap: 72px;
        }

        *,
        *::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;
            overflow-x: hidden;
        }

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

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

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

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

        input,
        textarea {
            font-family: inherit;
        }

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

        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
            :root {
                --section-gap: 48px;
            }
        }

        /* ============ HEADER ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: #ffffff;
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            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 {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            height: 100%;
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 9px;
            font-size: 1.28rem;
            font-weight: 700;
            color: var(--color-primary);
            white-space: nowrap;
            letter-spacing: 0.3px;
            transition: opacity var(--transition-fast);
        }
        .header-logo:hover {
            opacity: 0.84;
        }
        .logo-icon {
            font-size: 1.35rem;
            color: var(--color-accent);
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .header-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.94rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.2px;
        }
        .header-nav a:hover {
            color: var(--color-primary);
            background: #f5f6f9;
        }
        .header-nav a.active {
            color: var(--color-accent-dark);
            background: #fdf8f1;
            font-weight: 600;
        }

        .header-cta {
            display: flex;
            align-items: center;
        }
        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 20px;
            border-radius: 28px;
            font-size: 0.9rem;
            font-weight: 600;
            background: var(--color-accent);
            color: #fff;
            white-space: nowrap;
            letter-spacing: 0.3px;
            transition: all var(--transition-fast);
            box-shadow: 0 2px 8px rgba(200, 150, 62, 0.25);
        }
        .btn-header:hover {
            background: var(--color-accent-dark);
            box-shadow: 0 4px 16px rgba(200, 150, 62, 0.35);
            transform: translateY(-1px);
            color: #fff;
        }

        .hamburger-btn {
            display: none;
            font-size: 1.5rem;
            color: var(--color-primary);
            padding: 6px 8px;
            border-radius: 6px;
            transition: background var(--transition-fast);
        }
        .hamburger-btn:hover {
            background: #f5f6f9;
        }

        /* Mobile nav panel */
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: #ffffff;
            z-index: 999;
            flex-direction: column;
            padding: 16px 24px;
            gap: 4px;
            overflow-y: auto;
            box-shadow: var(--shadow-lg);
        }
        .mobile-nav-panel.is-open {
            display: flex;
        }
        .mobile-nav-panel a {
            display: block;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            font-size: 1.04rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
        }
        .mobile-nav-panel a:hover {
            background: #f5f6f9;
            color: var(--color-primary);
        }
        .mobile-nav-panel a.active {
            color: var(--color-accent-dark);
            background: #fdf8f1;
            font-weight: 600;
        }
        .mobile-nav-panel .mobile-cta {
            margin-top: 12px;
            text-align: center;
            background: var(--color-accent);
            color: #fff;
            border-radius: 28px;
            font-weight: 600;
            padding: 13px 20px;
        }
        .mobile-nav-panel .mobile-cta:hover {
            background: var(--color-accent-dark);
            color: #fff;
        }

        @media (max-width: 1024px) {
            .header-nav {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .hamburger-btn {
                display: inline-flex;
            }
        }

        /* ============ BREADCRUMB ============ */
        .breadcrumb-bar {
            background: #fafbfc;
            border-bottom: 1px solid var(--color-border-light);
            padding: 12px 0;
        }
        .breadcrumb-list {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 0.88rem;
            color: var(--color-text-muted);
        }
        .breadcrumb-list a {
            color: var(--color-text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb-list a:hover {
            color: var(--color-accent-dark);
        }
        .breadcrumb-sep {
            color: #c5c9d0;
            font-size: 0.75rem;
            margin: 0 2px;
        }
        .breadcrumb-current {
            color: var(--color-text);
            font-weight: 500;
        }

        /* ============ PAGE BANNER ============ */
        .page-banner {
            position: relative;
            background: url('assets/images/backpic/back-3.webp') center/cover no-repeat;
            min-height: 340px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 41, 64, 0.88) 0%, rgba(10, 30, 48, 0.78) 40%, rgba(8, 22, 36, 0.72) 100%);
            z-index: 1;
        }
        .page-banner-content {
            position: relative;
            z-index: 2;
            padding: 40px 0;
            width: 100%;
        }
        .page-banner-tag {
            display: inline-block;
            background: rgba(200, 150, 62, 0.22);
            color: var(--color-accent-light);
            border: 1px solid rgba(200, 150, 62, 0.35);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }
        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 700;
            color: #ffffff;
            margin: 0 0 12px;
            letter-spacing: 0.5px;
            line-height: 1.25;
        }
        .page-banner-desc {
            font-size: 1.12rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 620px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        @media (max-width: 768px) {
            .page-banner {
                min-height: 260px;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner-desc {
                font-size: 0.96rem;
            }
        }

        /* ============ SECTION TITLES ============ */
        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }
        .section-label {
            display: inline-block;
            font-size: 0.84rem;
            font-weight: 600;
            color: var(--color-accent-dark);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--color-primary);
            margin: 0 0 10px;
            letter-spacing: 0.3px;
        }
        .section-subtitle {
            font-size: 1.02rem;
            color: var(--color-text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 1.45rem;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }

        /* ============ CARDS ============ */
        .card-service {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .card-service:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: #d8dce3;
        }
        .card-service-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }
        .card-service-body {
            padding: 22px 20px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-service-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            font-size: 1.1rem;
            margin-bottom: 14px;
        }
        .card-service-icon.cyan {
            background: #e6f7f6;
            color: var(--color-cyan);
        }
        .card-service-icon.accent {
            background: #fdf5e8;
            color: var(--color-accent-dark);
        }
        .card-service-icon.blue {
            background: #e8eef6;
            color: var(--color-primary-light);
        }
        .card-service-icon.teal {
            background: #e3f2f0;
            color: #0d9488;
        }
        .card-service h3 {
            font-size: 1.14rem;
            font-weight: 650;
            color: var(--color-primary);
            margin: 0 0 8px;
            letter-spacing: 0.2px;
        }
        .card-service p {
            font-size: 0.93rem;
            color: var(--color-text-secondary);
            line-height: 1.65;
            margin: 0;
            flex: 1;
        }

        /* Report list cards */
        .report-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .report-card:hover {
            box-shadow: var(--shadow-md);
            border-color: #d5d9e0;
        }
        .report-card-thumb {
            width: 90px;
            height: 68px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        .report-card-info {
            flex: 1;
            min-width: 0;
        }
        .report-card-date {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin-bottom: 4px;
            letter-spacing: 0.3px;
        }
        .report-card h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-primary);
            margin: 0 0 6px;
            line-height: 1.4;
        }
        .report-card p {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            margin: 0;
            line-height: 1.55;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        @media (max-width: 520px) {
            .report-card {
                flex-direction: column;
            }
            .report-card-thumb {
                width: 100%;
                height: auto;
                aspect-ratio: 16/9;
            }
        }

        /* ============ STATS CARDS ============ */
        .stat-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .stat-number .stat-suffix {
            font-size: 1.4rem;
            font-weight: 500;
            color: var(--color-accent);
            margin-left: 2px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .stat-number {
                font-size: 2rem;
            }
        }

        /* ============ FAQ ============ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-sm);
        }
        .faq-item:hover {
            border-color: #d5d9e0;
        }
        .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;
            letter-spacing: 0.2px;
            transition: color var(--transition-fast);
            cursor: pointer;
            background: none;
            border: none;
            font-family: inherit;
        }
        .faq-question:hover {
            color: var(--color-accent-dark);
        }
        .faq-icon {
            flex-shrink: 0;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-fast);
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            color: var(--color-accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }
        .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: 1.7;
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            background: linear-gradient(160deg, var(--color-primary) 0%, #0c2a40 50%, #0a1f32 100%);
            border-radius: var(--radius-xl);
            padding: 52px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(200, 150, 62, 0.08);
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #ffffff;
            margin: 0 0 10px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 1.02rem;
            color: rgba(255, 255, 255, 0.8);
            margin: 0 auto 24px;
            max-width: 520px;
            position: relative;
            z-index: 1;
            line-height: 1.6;
        }
        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 650;
            background: var(--color-accent);
            color: #fff;
            letter-spacing: 0.4px;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 18px rgba(200, 150, 62, 0.35);
            position: relative;
            z-index: 1;
        }
        .btn-cta-large:hover {
            background: #d4a040;
            box-shadow: 0 6px 24px rgba(200, 150, 62, 0.45);
            transform: translateY(-2px);
            color: #fff;
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 36px 22px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: #0c1a28;
            color: #d5d9e0;
            padding: 52px 0 28px;
            margin-top: var(--section-gap);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }
        .footer-col h4 {
            color: #ffffff;
            font-size: 0.98rem;
            font-weight: 650;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 9px;
        }
        .footer-col ul li a {
            color: #b0b6be;
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent-light);
        }
        .footer-logo-text {
            font-size: 1.2rem;
            font-weight: 700;
            color: #ffffff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 10px;
        }
        .footer-logo-text i {
            color: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.84rem;
            color: #889099;
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* ============ UTILS ============ */
        .section-gap {
            padding: var(--section-gap) 0;
        }
        .section-gap-sm {
            padding: 48px 0;
        }
        .bg-light {
            background: var(--color-bg-light);
        }
        .text-center {
            text-align: center;
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }

        /* Grid spacing overrides for Foundation */
        .grid-x>.cell {
            margin-bottom: 24px;
        }
        @media (max-width: 768px) {
            .grid-x>.cell {
                margin-bottom: 16px;
            }
        }

        /* Smooth scroll offset for sticky header */
        html {
            scroll-padding-top: calc(var(--header-height) + 16px);
        }

        /* Focus accessibility */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

/* roulang page: category3 */
:root {
            --color-primary: #0d1b2a;
            --color-primary-light: #1a2d44;
            --color-accent: #d4a853;
            --color-accent-hover: #c4963a;
            --color-accent-light: #f5ecd7;
            --color-green: #2e7d32;
            --color-green-light: #e8f5e9;
            --color-bg: #f8f9fb;
            --color-white: #ffffff;
            --color-text: #1a1a2e;
            --color-text-secondary: #5f6b7a;
            --color-text-muted: #8b95a5;
            --color-border: #e5e7eb;
            --color-border-light: #f0f1f3;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 14px 44px rgba(0, 0, 0, 0.16);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --header-height: 68px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            min-height: 100vh;
        }

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

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

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

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

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

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

        @media (max-width: 640px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            height: var(--header-height);
        }
        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .header-logo {
            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: color var(--transition-fast);
        }
        .header-logo:hover {
            color: var(--color-accent);
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--color-accent);
            color: var(--color-white);
            font-size: 1.1rem;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .header-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .header-nav a:hover {
            color: var(--color-primary);
            background: #f5f6f8;
        }
        .header-nav a.active {
            color: var(--color-accent);
            background: var(--color-accent-light);
            font-weight: 600;
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 20px;
            border-radius: 25px;
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--color-white);
            background: var(--color-accent);
            border: none;
            white-space: nowrap;
            transition: all var(--transition-normal);
            cursor: pointer;
        }
        .btn-header:hover {
            background: var(--color-accent-hover);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
            color: var(--color-white);
        }
        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-primary);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .hamburger-btn:hover {
            background: #f5f6f8;
        }
        .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: 20px 24px;
            gap: 6px;
            overflow-y: auto;
            border-top: 1px solid var(--color-border-light);
        }
        .mobile-nav-panel.is-open {
            display: flex;
        }
        .mobile-nav-panel a {
            display: block;
            padding: 14px 18px;
            border-radius: var(--radius-md);
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--color-text);
            transition: all var(--transition-fast);
        }
        .mobile-nav-panel a:hover {
            background: #f5f6f8;
            color: var(--color-primary);
        }
        .mobile-nav-panel a.active {
            color: var(--color-accent);
            background: var(--color-accent-light);
            font-weight: 600;
        }
        .mobile-nav-panel .mobile-cta {
            margin-top: 12px;
            text-align: center;
            background: var(--color-accent);
            color: var(--color-white) !important;
            font-weight: 600;
            border-radius: 25px;
            padding: 14px 20px;
        }
        .mobile-nav-panel .mobile-cta:hover {
            background: var(--color-accent-hover) !important;
            color: var(--color-white) !important;
        }

        @media (max-width: 920px) {
            .header-nav {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .hamburger-btn {
                display: flex;
                align-items: center;
                justify-content: center;
            }
        }
        @media (min-width: 921px) {
            .mobile-nav-panel.is-open {
                display: none;
            }
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-bar {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            padding: 10px 0;
        }
        .breadcrumb-list {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.88rem;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb-list a {
            color: var(--color-text-muted);
            transition: color var(--transition-fast);
        }
        .breadcrumb-list a:hover {
            color: var(--color-accent);
        }
        .breadcrumb-sep {
            color: #c5c9d0;
            font-size: 0.7rem;
        }
        .breadcrumb-current {
            color: var(--color-primary);
            font-weight: 600;
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            background: var(--color-primary-light) url('assets/images/backpic/back-2.webp') center/cover no-repeat;
            min-height: 320px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.88) 0%, rgba(13, 27, 42, 0.7) 100%);
            z-index: 1;
        }
        .page-banner-content {
            position: relative;
            z-index: 2;
            padding: 50px 0;
            width: 100%;
        }
        .page-banner-content .banner-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            background: rgba(212, 168, 83, 0.2);
            color: var(--color-accent);
            border: 1px solid rgba(212, 168, 83, 0.35);
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }
        .page-banner-content h1 {
            font-size: 2.6rem;
            color: #ffffff;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .page-banner-content .banner-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.82);
            max-width: 620px;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .page-banner {
                min-height: 240px;
            }
            .page-banner-content h1 {
                font-size: 1.8rem;
            }
            .page-banner-content .banner-desc {
                font-size: 0.95rem;
            }
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 64px 0;
        }
        .section-sm {
            padding: 44px 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-title h2 {
            font-size: 1.9rem;
            color: var(--color-primary);
            margin-bottom: 8px;
        }
        .section-title .title-line {
            display: block;
            width: 50px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 2px;
            margin: 10px auto 0;
        }
        .section-title p {
            color: var(--color-text-secondary);
            font-size: 1rem;
            max-width: 550px;
            margin: 0 auto;
        }

        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }
            .section-title h2 {
                font-size: 1.5rem;
            }
        }

        /* ========== SKILL CARDS ========== */
        .skills-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .skill-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        .skill-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-accent);
        }
        .skill-card .card-icon-circle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            margin-bottom: 16px;
            font-size: 1.4rem;
            background: var(--color-accent-light);
            color: var(--color-accent);
            transition: all var(--transition-normal);
        }
        .skill-card:hover .card-icon-circle {
            background: var(--color-accent);
            color: var(--color-white);
            transform: scale(1.08);
        }
        .skill-card h3 {
            font-size: 1.1rem;
            margin-bottom: 8px;
            color: var(--color-primary);
        }
        .skill-card p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            margin: 0;
        }
        .skill-card .card-tag {
            display: inline-block;
            margin-top: 12px;
            padding: 4px 12px;
            border-radius: 14px;
            font-size: 0.78rem;
            font-weight: 600;
            background: #f0f4f8;
            color: var(--color-text-muted);
            transition: all var(--transition-fast);
        }
        .skill-card:hover .card-tag {
            background: var(--color-accent-light);
            color: var(--color-accent);
        }

        @media (max-width: 1024px) {
            .skills-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 520px) {
            .skills-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* ========== DEEP DIVE ========== */
        .deep-dive-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .deep-dive-image {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .deep-dive-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 4/3;
            transition: transform var(--transition-slow);
        }
        .deep-dive-image:hover img {
            transform: scale(1.03);
        }
        .deep-dive-text h2 {
            font-size: 1.65rem;
            margin-bottom: 16px;
            color: var(--color-primary);
        }
        .deep-dive-text p {
            color: var(--color-text-secondary);
            line-height: 1.8;
            margin-bottom: 14px;
            font-size: 0.98rem;
        }
        .deep-dive-text .highlight-box {
            background: var(--color-accent-light);
            border-left: 4px solid var(--color-accent);
            padding: 14px 18px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin-top: 16px;
            font-weight: 500;
            color: var(--color-primary);
            font-size: 0.94rem;
        }
        .btn-outline-accent {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 11px 24px;
            border-radius: 25px;
            font-weight: 600;
            font-size: 0.94rem;
            border: 2px solid var(--color-accent);
            color: var(--color-accent);
            background: transparent;
            transition: all var(--transition-normal);
            cursor: pointer;
        }
        .btn-outline-accent:hover {
            background: var(--color-accent);
            color: var(--color-white);
            box-shadow: var(--shadow-md);
        }

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

        /* ========== STATS ROW ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }
        .stat-item {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 30px 18px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .stat-item:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-accent);
            letter-spacing: -0.02em;
            line-height: 1;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            margin-top: 8px;
            font-weight: 500;
        }
        .stat-icon-sm {
            font-size: 1.3rem;
            color: var(--color-accent);
            margin-bottom: 6px;
            display: block;
        }

        @media (max-width: 768px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 480px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-sm);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-primary);
            background: var(--color-white);
            border: none;
            width: 100%;
            text-align: left;
            gap: 12px;
            transition: background var(--transition-fast);
        }
        .faq-question:hover {
            background: #fafbfc;
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 0.85rem;
            color: var(--color-accent);
            transition: transform var(--transition-normal);
            width: 22px;
            text-align: center;
        }
        .faq-item.is-open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }
        .faq-item.is-open .faq-answer {
            max-height: 500px;
        }
        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 0.93rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--color-primary);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(212, 168, 83, 0.1);
            pointer-events: none;
        }
        .cta-section h2 {
            color: #ffffff;
            font-size: 1.8rem;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.78);
            font-size: 1rem;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
        }
        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 28px;
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary);
            background: var(--color-accent);
            border: none;
            transition: all var(--transition-normal);
            cursor: pointer;
            position: relative;
            z-index: 1;
            box-shadow: var(--shadow-lg);
        }
        .btn-cta-large:hover {
            background: #e6c255;
            box-shadow: var(--shadow-xl);
            transform: translateY(-2px);
            color: var(--color-primary);
        }

        @media (max-width: 640px) {
            .cta-section {
                padding: 34px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
        }

        /* ========== RECOMMEND LIST ========== */
        .recommend-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .recommend-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .recommend-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }
        .recommend-card-img {
            aspect-ratio: 16/10;
            overflow: hidden;
            background: #eef1f5;
        }
        .recommend-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .recommend-card:hover .recommend-card-img img {
            transform: scale(1.06);
        }
        .recommend-card-body {
            padding: 18px;
        }
        .recommend-card-body h4 {
            font-size: 1rem;
            margin-bottom: 6px;
            color: var(--color-primary);
        }
        .recommend-card-body p {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin: 0;
            line-height: 1.5;
        }
        .recommend-card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: 10px;
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--color-accent);
            transition: color var(--transition-fast);
        }
        .recommend-card-body .card-link:hover {
            color: var(--color-accent-hover);
        }

        @media (max-width: 768px) {
            .recommend-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
        }
        @media (max-width: 480px) {
            .recommend-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-primary);
            color: #c5c9d0;
            padding: 50px 0 28px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-col h4 {
            color: #ffffff;
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            color: #c5c9d0;
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent);
        }
        .footer-logo-text {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 1.2rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 10px;
        }
        .footer-logo-text i {
            color: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: #8b95a5;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
        }

        /* ========== UTILITY ========== */
        .text-accent {
            color: var(--color-accent);
        }
        .bg-white {
            background: var(--color-white);
        }
        .bg-light {
            background: #f8f9fb;
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }

/* roulang page: category1 */
:root {
            --color-primary: #0d1b2a;
            --color-primary-light: #1a2d44;
            --color-primary-dark: #070f1a;
            --color-accent: #c9a96e;
            --color-accent-light: #d9bf8a;
            --color-accent-dark: #b8934f;
            --color-bg: #f8f7f4;
            --color-bg-white: #ffffff;
            --color-bg-light: #f0ede8;
            --color-bg-dark: #0d1b2a;
            --color-text: #1a1a1a;
            --color-text-secondary: #5a5a5a;
            --color-text-light: #8a8a8a;
            --color-text-on-dark: #e8e6e0;
            --color-text-on-accent: #1a1a1a;
            --color-border: #e2ddd4;
            --color-border-light: #f0ede8;
            --color-success: #2d8c5e;
            --color-warning: #d4a84b;
            --color-danger: #c0392b;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.18);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --header-height: 64px;
            --container-max: 1200px;
            --container-narrow: 960px;
            --section-gap: 64px;
            --section-gap-sm: 40px;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            line-height: 1.3;
            margin: 0 0 0.5em;
            color: var(--color-primary);
        }

        h1 {
            font-size: 2.5rem;
            font-weight: 700;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 1.85rem;
            font-weight: 700;
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: 1.35rem;
            font-weight: 600;
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
        }

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

        /* ============ HEADER ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(13, 27, 42, 0.97);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            height: 100%;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            white-space: nowrap;
            letter-spacing: 0.01em;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }
        .header-logo:hover {
            color: var(--color-accent-light);
        }
        .logo-icon {
            font-size: 1.35rem;
            color: var(--color-accent);
            transition: transform var(--transition-base);
        }
        .header-logo:hover .logo-icon {
            transform: rotate(-15deg) scale(1.1);
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
        }
        .header-nav a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 24px;
            font-size: 0.92rem;
            font-weight: 500;
            color: #c5c9d0;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }
        .header-nav a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.07);
        }
        .header-nav a.active {
            color: #ffffff;
            background: var(--color-accent);
            color: var(--color-primary-dark);
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(201, 169, 110, 0.3);
        }
        .header-cta {
            flex-shrink: 0;
        }
        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 9px 20px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 600;
            background: var(--color-accent);
            color: var(--color-primary-dark);
            border: none;
            white-space: nowrap;
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
        }
        .btn-header:hover {
            background: var(--color-accent-light);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(201, 169, 110, 0.35);
            color: var(--color-primary-dark);
        }
        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            color: #ffffff;
            font-size: 1.5rem;
            padding: 8px;
            cursor: pointer;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }
        .hamburger-btn:hover {
            color: var(--color-accent-light);
        }
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(13, 27, 42, 0.98);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            flex-direction: column;
            padding: 24px 20px;
            gap: 6px;
            z-index: 999;
            overflow-y: auto;
        }
        .mobile-nav-panel.open {
            display: flex;
        }
        .mobile-nav-panel a {
            display: block;
            padding: 13px 18px;
            border-radius: var(--radius-md);
            font-size: 1.05rem;
            font-weight: 500;
            color: #c5c9d0;
            transition: all var(--transition-fast);
        }
        .mobile-nav-panel a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.06);
        }
        .mobile-nav-panel a.active {
            color: var(--color-primary-dark);
            background: var(--color-accent);
            font-weight: 600;
        }
        .mobile-nav-panel .mobile-cta {
            margin-top: 8px;
            text-align: center;
            background: var(--color-accent);
            color: var(--color-primary-dark);
            font-weight: 600;
            border-radius: 24px;
            padding: 14px 18px;
        }

        /* ============ PAGE BANNER ============ */
        .page-banner {
            position: relative;
            background: var(--color-primary-dark);
            color: #ffffff;
            padding: 70px 0 64px;
            overflow: hidden;
            text-align: center;
        }
        .page-banner .banner-bg {
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center 35%;
            opacity: 0.3;
            z-index: 0;
        }
        .page-banner .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13, 27, 42, 0.65) 0%, rgba(13, 27, 42, 0.85) 100%);
            z-index: 1;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
        }
        .page-banner .banner-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            background: rgba(201, 169, 110, 0.2);
            color: var(--color-accent-light);
            border: 1px solid rgba(201, 169, 110, 0.35);
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }
        .page-banner h1 {
            color: #ffffff;
            margin-bottom: 12px;
        }
        .page-banner .banner-subtitle {
            font-size: 1.08rem;
            color: #c5c9d0;
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        /* ============ SECTIONS ============ */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-sm {
            padding: var(--section-gap-sm) 0;
        }
        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            color: var(--color-accent-dark);
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-title {
            margin-bottom: 12px;
        }
        .section-desc {
            font-size: 1.02rem;
            color: var(--color-text-secondary);
            max-width: 700px;
            margin: 0 auto 36px;
            line-height: 1.7;
            text-align: center;
        }

        /* ============ CARDS ============ */
        .card-analysis {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
            border: 1px solid var(--color-border-light);
        }
        .card-analysis:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-border);
        }
        .card-analysis .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #e8e6e0;
        }
        .card-analysis .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .card-analysis:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .card-analysis .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 5px 12px;
            border-radius: 14px;
            font-size: 0.78rem;
            font-weight: 600;
            background: var(--color-accent);
            color: var(--color-primary-dark);
            letter-spacing: 0.03em;
            z-index: 2;
        }
        .card-analysis .card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-analysis .card-body h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card-analysis .card-body p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 12px;
        }
        .card-analysis .card-meta {
            font-size: 0.8rem;
            color: var(--color-text-light);
            display: flex;
            gap: 14px;
            align-items: center;
        }
        .card-analysis .card-link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--color-accent-dark);
            transition: color var(--transition-fast);
        }
        .card-analysis .card-link:hover {
            color: var(--color-primary);
        }
        .card-analysis .card-link i {
            transition: transform var(--transition-fast);
        }
        .card-analysis .card-link:hover i {
            transform: translateX(4px);
        }

        /* ============ STATS CARDS ============ */
        .stat-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            height: 100%;
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--color-accent-light);
        }
        .stat-card .stat-icon {
            font-size: 2.2rem;
            color: var(--color-accent);
            margin-bottom: 10px;
        }
        .stat-card .stat-number {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--color-primary);
            font-family: var(--font-heading);
            letter-spacing: -0.02em;
            margin-bottom: 4px;
        }
        .stat-card .stat-unit {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            font-weight: 500;
        }
        .stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-light);
            margin-top: 6px;
        }

        /* ============ BRAND STORY ============ */
        .brand-story-block {
            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);
            position: relative;
            overflow: hidden;
        }
        .brand-story-block::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 5px;
            height: 100%;
            background: linear-gradient(180deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            border-radius: 5px 0 0 5px;
        }
        .brand-story-block .brand-story-img {
            float: right;
            width: 200px;
            border-radius: var(--radius-md);
            margin: 0 0 16px 24px;
            box-shadow: var(--shadow-sm);
        }
        .brand-story-block h3 {
            color: var(--color-primary);
            margin-bottom: 14px;
            font-size: 1.4rem;
        }
        .brand-story-block p {
            color: var(--color-text-secondary);
            line-height: 1.85;
            font-size: 0.98rem;
            margin-bottom: 10px;
            text-align: justify;
        }

        /* ============ NEWS LIST ============ */
        .news-list-item {
            display: flex;
            gap: 18px;
            padding: 18px 0;
            border-bottom: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
            align-items: flex-start;
        }
        .news-list-item:first-child {
            border-top: 1px solid var(--color-border-light);
        }
        .news-list-item:hover {
            background: rgba(201, 169, 110, 0.04);
            padding-left: 12px;
            border-radius: var(--radius-sm);
            margin-left: -12px;
            padding-right: 12px;
            width: calc(100% + 24px);
        }
        .news-list-item .news-date {
            flex-shrink: 0;
            width: 64px;
            text-align: center;
            background: var(--color-bg-light);
            border-radius: var(--radius-sm);
            padding: 8px 6px;
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--color-primary);
            line-height: 1.2;
        }
        .news-list-item .news-date span {
            display: block;
            font-size: 1.3rem;
            color: var(--color-accent-dark);
        }
        .news-list-item .news-info h4 {
            margin-bottom: 4px;
            font-size: 1.05rem;
            color: var(--color-primary);
        }
        .news-list-item .news-info p {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            margin-bottom: 6px;
            line-height: 1.55;
        }
        .news-list-item .news-info .news-link {
            font-size: 0.84rem;
            font-weight: 600;
            color: var(--color-accent-dark);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition-fast);
        }
        .news-list-item .news-info .news-link:hover {
            color: var(--color-primary);
        }
        .news-list-item .news-info .news-link i {
            font-size: 0.7rem;
            transition: transform var(--transition-fast);
        }
        .news-list-item .news-info .news-link:hover i {
            transform: translateX(3px);
        }

        /* ============ FAQ ACCORDION ============ */
        .faq-accordion-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .accordion-item-custom {
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            overflow: hidden;
            background: var(--color-bg-white);
            transition: box-shadow var(--transition-fast);
        }
        .accordion-item-custom:hover {
            box-shadow: var(--shadow-sm);
        }
        .accordion-toggle-custom {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 20px;
            text-align: left;
            font-size: 1.02rem;
            font-weight: 600;
            color: var(--color-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-family: var(--font-heading);
            transition: color var(--transition-fast);
            line-height: 1.4;
        }
        .accordion-toggle-custom:hover {
            color: var(--color-accent-dark);
        }
        .accordion-toggle-custom .faq-icon {
            flex-shrink: 0;
            font-size: 0.85rem;
            transition: transform var(--transition-base);
            color: var(--color-accent);
            margin-left: 12px;
        }
        .accordion-item-custom.open .accordion-toggle-custom .faq-icon {
            transform: rotate(180deg);
        }
        .accordion-body-custom {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
            padding: 0 20px;
        }
        .accordion-item-custom.open .accordion-body-custom {
            max-height: 500px;
            padding: 0 20px 18px;
        }
        .accordion-body-custom p {
            font-size: 0.92rem;
            color: var(--color-text-secondary);
            line-height: 1.75;
            margin: 0;
            text-align: justify;
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            background: var(--color-primary);
            color: #ffffff;
            text-align: center;
        }
        .cta-section h2 {
            color: #ffffff;
            margin-bottom: 10px;
        }
        .cta-section p {
            color: #c5c9d0;
            font-size: 1rem;
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 28px;
            font-size: 1rem;
            font-weight: 600;
            background: var(--color-accent);
            color: var(--color-primary-dark);
            border: none;
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
        }
        .btn-cta:hover {
            background: var(--color-accent-light);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(201, 169, 110, 0.4);
            color: var(--color-primary-dark);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 30px;
            border-radius: 28px;
            font-size: 0.95rem;
            font-weight: 600;
            background: transparent;
            color: #ffffff;
            border: 2px solid rgba(255, 255, 255, 0.35);
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
        }
        .btn-outline-light:hover {
            border-color: var(--color-accent);
            color: var(--color-accent-light);
            background: rgba(255, 255, 255, 0.04);
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--color-primary-dark);
            color: #c5c9d0;
            padding: 50px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }
        .footer-col h4 {
            color: #ffffff;
            font-size: 0.95rem;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
            font-weight: 600;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: #c5c9d0;
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent-light);
        }
        .footer-logo-text {
            font-family: var(--font-heading);
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 10px;
        }
        .footer-logo-text i {
            color: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: #8a8a8a;
        }
        .footer-bottom p {
            margin: 0;
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            :root {
                --section-gap: 48px;
                --section-gap-sm: 32px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.55rem;
            }
            .header-nav a {
                padding: 7px 11px;
                font-size: 0.82rem;
            }
            .btn-header {
                padding: 8px 15px;
                font-size: 0.82rem;
            }
            .header-logo {
                font-size: 1.15rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .brand-story-block .brand-story-img {
                float: none;
                width: 100%;
                max-width: 300px;
                margin: 0 auto 18px;
                display: block;
            }
            .page-banner {
                padding: 50px 0 44px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 36px;
                --section-gap-sm: 28px;
                --header-height: 56px;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.35rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .header-nav {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .hamburger-btn {
                display: block;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .page-banner {
                padding: 40px 0 36px;
            }
            .page-banner .banner-subtitle {
                font-size: 0.95rem;
            }
            .stat-card .stat-number {
                font-size: 1.8rem;
            }
            .brand-story-block {
                padding: 28px 20px;
            }
            .news-list-item {
                flex-direction: column;
                gap: 8px;
            }
            .news-list-item .news-date {
                width: auto;
                display: inline-block;
                text-align: left;
                padding: 4px 10px;
                font-size: 0.78rem;
            }
            .news-list-item .news-date span {
                display: inline;
                font-size: 0.9rem;
                margin-left: 4px;
            }
            .container-custom,
            .container-narrow {
                padding: 0 16px;
            }
            .header-inner {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            h1 {
                font-size: 1.45rem;
            }
            h2 {
                font-size: 1.2rem;
            }
            .card-analysis .card-body {
                padding: 14px 15px 16px;
            }
            .card-analysis .card-body h3 {
                font-size: 1rem;
            }
            .accordion-toggle-custom {
                font-size: 0.92rem;
                padding: 14px 16px;
            }
            .accordion-body-custom p {
                font-size: 0.84rem;
            }
            .btn-cta,
            .btn-outline-light {
                padding: 12px 22px;
                font-size: 0.9rem;
                border-radius: 22px;
            }
            .section-label {
                font-size: 0.74rem;
            }
            .brand-story-block {
                padding: 22px 16px;
            }
            .brand-story-block p {
                font-size: 0.88rem;
                text-align: left;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-card .stat-number {
                font-size: 1.5rem;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #0f1f3d;
            --color-primary-light: #15294f;
            --color-accent: #c8963e;
            --color-accent-light: #d4a853;
            --color-accent-dark: #a87a2e;
            --color-bg: #ffffff;
            --color-bg-alt: #f7f8fa;
            --color-bg-dark: #0d1a2d;
            --color-text: #1a1a2e;
            --color-text-light: #4a4d5c;
            --color-text-muted: #7a7d8c;
            --color-text-on-dark: #e8eaef;
            --color-border: #e2e4e9;
            --color-border-light: #eef0f4;
            --color-success: #1a9c5e;
            --color-danger: #d94040;
            --color-warning: #e8a020;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.09);
            --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.15);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Noto Sans SC', sans-serif;
            --font-mono: 'SF Mono', 'Consolas', 'Monaco', monospace;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 56px;
            --spacing-2xl: 72px;
            --spacing-3xl: 96px;
            --header-height: 64px;
            --max-width: 1240px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

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

        input {
            font-family: var(--font-sans);
        }

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

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

        /* ============= 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: 0 1px 6px rgba(0, 0, 0, 0.04);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .header-inner {
            max-width: var(--max-width);
            width: 100%;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            height: 100%;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 9px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            white-space: nowrap;
            letter-spacing: -0.01em;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }
        .header-logo:hover {
            color: var(--color-accent);
        }
        .logo-icon {
            font-size: 1.4rem;
            color: var(--color-accent);
            transition: transform var(--transition-base);
        }
        .header-logo:hover .logo-icon {
            transform: rotate(-15deg);
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-left: auto;
        }
        .header-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 15px;
            font-size: 0.93rem;
            font-weight: 500;
            color: var(--color-text-light);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .header-nav a:hover {
            color: var(--color-primary);
            background: rgba(15, 31, 61, 0.04);
        }
        .header-nav a.active {
            color: var(--color-accent);
            font-weight: 600;
            background: rgba(200, 150, 62, 0.08);
        }
        .header-cta {
            flex-shrink: 0;
            margin-left: 6px;
        }
        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 9px 18px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            background: var(--color-accent);
            border-radius: 24px;
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.02em;
            box-shadow: 0 3px 12px rgba(200, 150, 62, 0.3);
        }
        .btn-header:hover {
            background: var(--color-accent-dark);
            color: #fff;
            box-shadow: 0 6px 20px rgba(200, 150, 62, 0.4);
            transform: translateY(-1px);
        }
        .hamburger-btn {
            display: none;
            font-size: 1.5rem;
            color: var(--color-primary);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }
        .hamburger-btn:hover {
            background: rgba(15, 31, 61, 0.06);
        }
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-lg);
            padding: var(--spacing-sm) var(--spacing-md);
            flex-direction: column;
            gap: 4px;
            z-index: 999;
            max-height: calc(100vh - var(--header-height));
            overflow-y: auto;
        }
        .mobile-nav-panel.open {
            display: flex;
        }
        .mobile-nav-panel a {
            display: block;
            padding: 12px 16px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--color-text-light);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }
        .mobile-nav-panel a:hover {
            background: rgba(15, 31, 61, 0.04);
            color: var(--color-primary);
        }
        .mobile-nav-panel a.active {
            color: var(--color-accent);
            font-weight: 600;
            background: rgba(200, 150, 62, 0.07);
        }
        .mobile-nav-panel .mobile-cta {
            margin-top: 8px;
            text-align: center;
            background: var(--color-accent);
            color: #fff !important;
            font-weight: 600;
            border-radius: 24px;
            padding: 13px 20px;
        }
        .mobile-nav-panel .mobile-cta:hover {
            background: var(--color-accent-dark);
        }

        /* ============= PAGE BANNER ============= */
        .page-banner {
            position: relative;
            background: var(--color-bg-dark) url('assets/images/backpic/back-2.webp') center/cover no-repeat;
            min-height: 340px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 31, 61, 0.88) 0%, rgba(13, 26, 45, 0.78) 40%, rgba(10, 20, 36, 0.7) 100%);
            z-index: 1;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 70px;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.35), transparent);
            z-index: 1;
        }
        .page-banner-content {
            position: relative;
            z-index: 2;
            color: #fff;
            padding: var(--spacing-xl) 0;
        }
        .page-banner-content .breadcrumb-row {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: var(--spacing-md);
            flex-wrap: wrap;
        }
        .breadcrumb-row a {
            color: rgba(255, 255, 255, 0.85);
            transition: color var(--transition-fast);
        }
        .breadcrumb-row a:hover {
            color: var(--color-accent-light);
        }
        .breadcrumb-row .sep {
            color: rgba(255, 255, 255, 0.45);
            font-size: 0.7rem;
        }
        .breadcrumb-row .current {
            color: var(--color-accent-light);
            font-weight: 500;
        }
        .page-banner-content h1 {
            font-size: 2.4rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            letter-spacing: -0.02em;
            line-height: 1.25;
        }
        .page-banner-content .banner-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.82);
            max-width: 620px;
            line-height: 1.65;
        }
        .banner-accent-line {
            display: inline-block;
            width: 48px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 2px;
            margin-bottom: var(--spacing-sm);
        }

        /* ============= SECTION STYLES ============= */
        .section {
            padding: var(--spacing-2xl) 0;
        }
        .section-alt {
            background: var(--color-bg-alt);
        }
        .section-dark {
            background: var(--color-bg-dark);
            color: var(--color-text-on-dark);
        }
        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-xl);
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .section-header .section-tag {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-accent);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 8px;
        }
        .section-header .section-desc {
            color: var(--color-text-muted);
            max-width: 560px;
            margin: 0 auto;
            font-size: 0.97rem;
        }
        .section-dark .section-header h2 {
            color: #fff;
        }
        .section-dark .section-header .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ============= CARDS ============= */
        .card-odds-type {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg) var(--spacing-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }
        .card-odds-type:hover {
            box-shadow: var(--shadow-lg);
            border-color: transparent;
            transform: translateY(-3px);
        }
        .card-odds-type .card-icon-circle {
            width: 54px;
            height: 54px;
            border-radius: 50%;
            background: rgba(200, 150, 62, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--color-accent);
            margin-bottom: var(--spacing-sm);
            flex-shrink: 0;
        }
        .card-odds-type h4 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
        }
        .card-odds-type p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.6;
            margin: 0;
            flex-grow: 1;
        }
        .card-odds-type .card-link {
            margin-top: var(--spacing-sm);
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-accent);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: gap var(--transition-fast);
        }
        .card-odds-type .card-link:hover {
            gap: 9px;
        }

        /* Case card */
        .case-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            height: 100%;
        }
        .case-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .case-card .case-img-wrap {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .case-card .case-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .case-card:hover .case-img-wrap img {
            transform: scale(1.05);
        }
        .case-card .case-body {
            padding: var(--spacing-md);
        }
        .case-card .case-badge {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 20px;
            margin-bottom: 8px;
            letter-spacing: 0.03em;
        }
        .case-badge.win {
            background: #e6f7ee;
            color: #0d8040;
        }
        .case-badge.loss {
            background: #fde8e8;
            color: #c0392b;
        }
        .case-badge.draw {
            background: #fef3e0;
            color: #b87514;
        }
        .case-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .case-card p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.55;
            margin: 0;
        }

        /* Article list card */
        .article-list-item {
            display: flex;
            gap: var(--spacing-md);
            align-items: flex-start;
            padding: var(--spacing-sm) 0;
            border-bottom: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
        }
        .article-list-item:last-child {
            border-bottom: none;
        }
        .article-list-item:hover {
            background: rgba(15, 31, 61, 0.015);
            margin: 0 -12px;
            padding-left: 12px;
            padding-right: 12px;
            border-radius: var(--radius-md);
        }
        .article-list-item .article-thumb {
            width: 100px;
            height: 70px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        .article-list-item .article-info {
            flex: 1;
            min-width: 0;
        }
        .article-list-item .article-date {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin-bottom: 2px;
        }
        .article-list-item h5 {
            font-size: 0.97rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 4px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-list-item .article-excerpt {
            font-size: 0.83rem;
            color: var(--color-text-muted);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-list-item .article-readmore {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-accent);
            margin-top: 4px;
            display: inline-block;
            transition: all var(--transition-fast);
        }
        .article-list-item .article-readmore:hover {
            color: var(--color-accent-dark);
        }

        /* ============= TABLE STYLE ============= */
        .odds-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            background: #fff;
        }
        .odds-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
            min-width: 700px;
        }
        .odds-table thead th {
            background: var(--color-primary);
            color: #fff;
            padding: 14px 16px;
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.03em;
            text-align: center;
            white-space: nowrap;
        }
        .odds-table tbody td {
            padding: 12px 16px;
            text-align: center;
            border-bottom: 1px solid var(--color-border-light);
            color: var(--color-text);
            font-weight: 500;
        }
        .odds-table tbody tr:hover {
            background: rgba(200, 150, 62, 0.03);
        }
        .odds-table .cell-up {
            color: var(--color-success);
            font-weight: 600;
        }
        .odds-table .cell-down {
            color: var(--color-danger);
            font-weight: 600;
        }
        .odds-table .cell-stable {
            color: var(--color-text-muted);
        }

        /* ============= FAQ ============= */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: color var(--transition-fast);
            background: transparent;
            border: none;
            font-family: var(--font-sans);
            letter-spacing: 0.01em;
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-question .faq-icon {
            font-size: 0.85rem;
            color: var(--color-accent);
            transition: transform var(--transition-base);
            flex-shrink: 0;
            margin-left: 12px;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 20px 18px;
        }
        .faq-answer p {
            font-size: 0.9rem;
            color: var(--color-text-light);
            line-height: 1.75;
            margin: 0;
        }

        /* ============= CTA ============= */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, #0d1a2d 60%, #0f1f3d 100%);
            border-radius: var(--radius-xl);
            padding: var(--spacing-xl) var(--spacing-lg);
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 160px;
            height: 160px;
            background: rgba(200, 150, 62, 0.15);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -30px;
            left: -30px;
            width: 120px;
            height: 120px;
            background: rgba(200, 150, 62, 0.1);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 520px;
            margin: 0 auto var(--spacing-md);
            position: relative;
            z-index: 1;
        }
        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            background: var(--color-accent);
            border-radius: 30px;
            transition: all var(--transition-base);
            box-shadow: 0 6px 24px rgba(200, 150, 62, 0.4);
            position: relative;
            z-index: 1;
            letter-spacing: 0.02em;
        }
        .btn-cta-large:hover {
            background: var(--color-accent-light);
            color: #fff;
            box-shadow: 0 10px 32px rgba(200, 150, 62, 0.5);
            transform: translateY(-2px);
        }

        /* ============= FOOTER ============= */
        .site-footer {
            background: #0d1a2d;
            color: #c5c9d0;
            padding: var(--spacing-xl) 0 var(--spacing-md);
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.3fr;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a,
        .footer-col ul li span {
            color: #c5c9d0;
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent-light);
        }
        .footer-logo-text {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 8px;
        }
        .footer-logo-text i {
            color: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: var(--spacing-md);
            text-align: center;
            font-size: 0.82rem;
            color: #8899aa;
        }

        /* ============= RESPONSIVE ============= */
        @media (max-width: 1024px) {
            .header-nav {
                gap: 2px;
            }
            .header-nav a {
                padding: 8px 10px;
                font-size: 0.85rem;
            }
            .header-cta {
                margin-left: 2px;
            }
            .btn-header {
                padding: 8px 14px;
                font-size: 0.82rem;
            }
            .page-banner {
                min-height: 280px;
            }
            .page-banner-content h1 {
                font-size: 1.9rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .section-header h2 {
                font-size: 1.7rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 768px) {
            .header-nav {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .hamburger-btn {
                display: inline-flex;
            }
            .mobile-nav-panel {
                display: none;
            }
            .mobile-nav-panel.open {
                display: flex;
            }
            .header-inner {
                justify-content: space-between;
            }
            .header-logo {
                margin-right: 0;
            }
            .header-nav {
                margin-left: 0;
            }
            .page-banner {
                min-height: 240px;
            }
            .page-banner-content h1 {
                font-size: 1.55rem;
            }
            .page-banner-content .banner-subtitle {
                font-size: 0.9rem;
            }
            .section {
                padding: var(--spacing-xl) 0;
            }
            .section-header h2 {
                font-size: 1.45rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .cta-section {
                padding: var(--spacing-lg) var(--spacing-sm);
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .btn-cta-large {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
            .card-odds-type {
                padding: var(--spacing-md);
            }
            .odds-table-wrap {
                border-radius: var(--radius-md);
            }
            .article-list-item {
                flex-direction: column;
                gap: var(--spacing-xs);
            }
            .article-list-item .article-thumb {
                width: 100%;
                height: 140px;
            }
            .case-card .case-img-wrap {
                height: 160px;
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                padding-left: var(--spacing-sm);
                padding-right: var(--spacing-sm);
            }
            .header-inner {
                padding: 0 var(--spacing-sm);
            }
            .header-logo {
                font-size: 1.1rem;
            }
            .page-banner {
                min-height: 210px;
            }
            .page-banner-content h1 {
                font-size: 1.3rem;
            }
            .page-banner-content .banner-subtitle {
                font-size: 0.82rem;
            }
            .section-header h2 {
                font-size: 1.25rem;
            }
            .section {
                padding: var(--spacing-lg) 0;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }
            .faq-answer p {
                font-size: 0.83rem;
            }
            .cta-section h2 {
                font-size: 1.15rem;
            }
            .btn-cta-large {
                padding: 10px 20px;
                font-size: 0.88rem;
                border-radius: 24px;
            }
        }