/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #0a1628;
            --primary-light: #1a2a4a;
            --primary-mid: #2a3a5a;
            --accent: #d4a84b;
            --accent-hover: #c49a3a;
            --accent-light: #f0d89a;
            --bg-light: #f7f8fa;
            --bg-card: #ffffff;
            --text-dark: #1a1a2e;
            --text-mid: #4a4a6a;
            --text-light: #8a8aaa;
            --border-light: #e8eaee;
            --border-mid: #d0d4dd;
            --shadow-sm: 0 2px 8px rgba(10, 22, 40, 0.06);
            --shadow-md: 0 8px 32px rgba(10, 22, 40, 0.08);
            --shadow-lg: 0 16px 48px rgba(10, 22, 40, 0.12);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-sans);
            color: var(--text-dark);
            background: var(--bg-light);
            line-height: 1.7;
            font-size: 1rem;
        }

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

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

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

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

        /* ===== Container ===== */
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

        /* ===== Typography ===== */
        .section-title {
            font-size: 2.25rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin-bottom: 0.75rem;
        }

        .section-subtitle {
            font-size: 1.125rem;
            color: var(--text-mid);
            max-width: 640px;
            margin: 0 auto 3rem auto;
            text-align: center;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 1.625rem;
            }
            .section-subtitle {
                font-size: 1rem;
                margin-bottom: 2rem;
            }
        }

        /* ===== Navbar ===== */
        .navbar-main {
            background: #ffffff;
            box-shadow: 0 1px 0 var(--border-light), 0 1px 6px rgba(10, 22, 40, 0.04);
            padding: 0;
            min-height: 72px;
            transition: var(--transition);
        }

        .navbar-main .navbar-brand {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .navbar-main .navbar-brand .brand-icon {
            width: 36px;
            height: 36px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.1rem;
            font-weight: 700;
        }

        .navbar-main .navbar-nav .nav-link {
            color: var(--text-mid);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.5rem 1.1rem;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }

        .navbar-main .navbar-nav .nav-link:hover,
        .navbar-main .navbar-nav .nav-link:focus {
            color: var(--primary);
            background: rgba(10, 22, 40, 0.04);
        }

        .navbar-main .navbar-nav .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        .navbar-main .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 1.1rem;
            right: 1.1rem;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }

        .navbar-main .nav-cta {
            background: var(--primary);
            color: #fff !important;
            padding: 0.5rem 1.5rem !important;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .navbar-main .nav-cta:hover {
            background: var(--accent);
            color: var(--primary) !important;
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(212, 168, 75, 0.3);
        }

        .navbar-main .nav-search {
            position: relative;
            width: 200px;
        }

        .navbar-main .nav-search input {
            width: 100%;
            padding: 0.45rem 1rem 0.45rem 2.4rem;
            border: 1px solid var(--border-light);
            border-radius: 100px;
            background: var(--bg-light);
            font-size: 0.875rem;
            color: var(--text-dark);
            transition: var(--transition);
            outline: none;
        }

        .navbar-main .nav-search input:focus {
            border-color: var(--accent);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(212, 168, 75, 0.15);
        }

        .navbar-main .nav-search .search-icon {
            position: absolute;
            left: 0.85rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-light);
            font-size: 0.85rem;
        }

        .navbar-main .navbar-toggler {
            border: none;
            padding: 0.4rem 0.6rem;
            color: var(--primary);
            font-size: 1.3rem;
        }

        .navbar-main .navbar-toggler:focus {
            box-shadow: none;
        }

        @media (max-width: 991.98px) {
            .navbar-main {
                min-height: 64px;
            }
            .navbar-main .navbar-collapse {
                background: #fff;
                padding: 1rem 0.5rem;
                border-radius: var(--radius-md);
                box-shadow: var(--shadow-md);
                margin-top: 0.5rem;
            }
            .navbar-main .navbar-nav .nav-link {
                padding: 0.7rem 1rem;
            }
            .navbar-main .navbar-nav .nav-link.active::after {
                display: none;
            }
            .navbar-main .navbar-nav .nav-link.active {
                background: rgba(212, 168, 75, 0.12);
                border-radius: var(--radius-sm);
            }
            .navbar-main .nav-search {
                width: 100%;
                margin: 0.5rem 0 0.75rem 0;
            }
            .navbar-main .nav-cta {
                text-align: center;
                width: 100%;
            }
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 88vh;
            display: flex;
            align-items: center;
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 22, 40, 0.88) 0%, rgba(10, 22, 40, 0.72) 60%, rgba(10, 22, 40, 0.50) 100%);
            z-index: 1;
        }

        .hero-section .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            padding: 4rem 0;
        }

        .hero-section .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(212, 168, 75, 0.15);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(212, 168, 75, 0.25);
            color: var(--accent-light);
            padding: 0.4rem 1.2rem;
            border-radius: 100px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 1.5rem;
        }

        .hero-section .hero-badge i {
            font-size: 0.75rem;
        }

        .hero-section h1 {
            font-size: 3.25rem;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.15;
            letter-spacing: -0.03em;
            margin-bottom: 1.25rem;
        }

        .hero-section h1 .highlight {
            color: var(--accent);
        }

        .hero-section .hero-desc {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            max-width: 640px;
            margin-bottom: 2.25rem;
        }

        .hero-section .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
        }

        .hero-section .btn-primary-custom {
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: 1rem;
            padding: 0.85rem 2.5rem;
            border-radius: var(--radius-sm);
            border: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .hero-section .btn-primary-custom:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(212, 168, 75, 0.3);
        }

        .hero-section .btn-outline-custom {
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            padding: 0.85rem 2.5rem;
            border-radius: var(--radius-sm);
            border: 1.5px solid rgba(255, 255, 255, 0.3);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .hero-section .btn-outline-custom:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--accent);
            color: var(--accent);
        }

        .hero-section .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 2.5rem;
            margin-top: 3.5rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .hero-section .hero-stat-item {
            text-align: left;
        }

        .hero-section .hero-stat-item .number {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1;
        }

        .hero-section .hero-stat-item .number .accent {
            color: var(--accent);
        }

        .hero-section .hero-stat-item .label {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 0.3rem;
        }

        @media (max-width: 768px) {
            .hero-section {
                min-height: 70vh;
            }
            .hero-section h1 {
                font-size: 2rem;
            }
            .hero-section .hero-desc {
                font-size: 1rem;
            }
            .hero-section .hero-stats {
                gap: 1.5rem;
            }
            .hero-section .hero-stat-item .number {
                font-size: 1.5rem;
            }
            .hero-section .btn-primary-custom,
            .hero-section .btn-outline-custom {
                padding: 0.7rem 1.8rem;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }
            .hero-section .hero-actions {
                flex-direction: column;
                width: 100%;
            }
        }

        @media (max-width: 480px) {
            .hero-section h1 {
                font-size: 1.6rem;
            }
            .hero-section .hero-stats {
                flex-direction: column;
                gap: 1rem;
            }
        }

        /* ===== Services Section ===== */
        .services-section {
            padding: 5rem 0;
            background: #ffffff;
        }

        .service-card {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem 2rem 1.5rem;
            height: 100%;
            transition: var(--transition);
            border: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent-light);
        }

        .service-card .card-img-wrap {
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin-bottom: 1.25rem;
            height: 200px;
            background: var(--border-light);
        }

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

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

        .service-card .card-icon {
            width: 52px;
            height: 52px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1.3rem;
            margin-bottom: 1rem;
        }

        .service-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 0.6rem;
        }

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

        .service-card .card-tag {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.2rem 0.8rem;
            border-radius: 100px;
            margin-top: 0.75rem;
            letter-spacing: 0.02em;
        }

        @media (max-width: 768px) {
            .services-section {
                padding: 3rem 0;
            }
            .service-card {
                padding: 1.5rem 1rem;
            }
            .service-card .card-img-wrap {
                height: 160px;
            }
        }

        /* ===== Features Section ===== */
        .features-section {
            padding: 5rem 0;
            background: var(--bg-light);
        }

        .feature-item {
            display: flex;
            gap: 1.25rem;
            padding: 1.5rem;
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            height: 100%;
        }

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

        .feature-item .feat-icon {
            width: 48px;
            height: 48px;
            min-width: 48px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1.15rem;
        }

        .feature-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 0.35rem;
        }

        .feature-item p {
            font-size: 0.9rem;
            color: var(--text-mid);
            margin-bottom: 0;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .features-section {
                padding: 3rem 0;
            }
            .feature-item {
                padding: 1.25rem;
            }
        }

        /* ===== CMS Latest Section ===== */
        .cms-section {
            padding: 5rem 0;
            background: #ffffff;
        }

        .cms-card {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .cms-card .cms-img-wrap {
            height: 180px;
            background: var(--border-light);
            overflow: hidden;
        }

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

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

        .cms-card .cms-body {
            padding: 1.25rem 1.25rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .cms-card .cms-meta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.8rem;
            color: var(--text-light);
            margin-bottom: 0.5rem;
        }

        .cms-card .cms-meta .cms-cat {
            background: var(--accent);
            color: var(--primary);
            font-weight: 600;
            padding: 0.1rem 0.7rem;
            border-radius: 100px;
            font-size: 0.7rem;
        }

        .cms-card .cms-meta .cms-date {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .cms-card .cms-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.4;
            margin-bottom: 0.5rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .cms-card .cms-title a {
            color: inherit;
        }

        .cms-card .cms-title a:hover {
            color: var(--accent);
        }

        .cms-card .cms-excerpt {
            font-size: 0.875rem;
            color: var(--text-mid);
            line-height: 1.6;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .cms-empty {
            text-align: center;
            padding: 3rem 1rem;
            color: var(--text-light);
            font-size: 1rem;
            background: var(--bg-light);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-mid);
        }

        @media (max-width: 768px) {
            .cms-section {
                padding: 3rem 0;
            }
            .cms-card .cms-img-wrap {
                height: 150px;
            }
        }

        /* ===== Stats Section ===== */
        .stats-section {
            padding: 4.5rem 0;
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            position: relative;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(10, 22, 40, 0.85);
        }

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

        .stats-section .stat-block {
            text-align: center;
            padding: 1.5rem;
        }

        .stats-section .stat-block .stat-number {
            font-size: 2.75rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.1;
        }

        .stats-section .stat-block .stat-label {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 0.4rem;
        }

        .stats-section .stat-block .stat-desc {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 0.2rem;
        }

        @media (max-width: 768px) {
            .stats-section {
                padding: 3rem 0;
            }
            .stats-section .stat-block .stat-number {
                font-size: 2rem;
            }
            .stats-section .stat-block {
                padding: 0.75rem;
            }
        }

        /* ===== Process Section ===== */
        .process-section {
            padding: 5rem 0;
            background: #ffffff;
        }

        .process-step {
            text-align: center;
            padding: 1.5rem 1rem;
            position: relative;
        }

        .process-step .step-num {
            width: 60px;
            height: 60px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1.5rem;
            font-weight: 800;
            margin: 0 auto 1rem;
            transition: var(--transition);
        }

        .process-step:hover .step-num {
            background: var(--accent);
            color: var(--primary);
            transform: scale(1.08);
        }

        .process-step h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 0.4rem;
        }

        .process-step p {
            font-size: 0.9rem;
            color: var(--text-mid);
            margin-bottom: 0;
            max-width: 260px;
            margin-left: auto;
            margin-right: auto;
        }

        .process-step .step-line {
            position: absolute;
            top: 45px;
            right: -15%;
            width: 30%;
            height: 2px;
            background: var(--border-light);
            display: none;
        }

        @media (min-width: 992px) {
            .process-step .step-line {
                display: block;
            }
            .process-step:last-child .step-line {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .process-section {
                padding: 3rem 0;
            }
            .process-step {
                padding: 1rem 0.5rem;
            }
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            padding: 5rem 0;
            background: var(--bg-light);
        }

        .faq-accordion .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 0.75rem;
            background: #fff;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-accordion .accordion-item:hover {
            border-color: var(--border-mid);
        }

        .faq-accordion .accordion-button {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            padding: 1.1rem 1.5rem;
            background: #fff;
            box-shadow: none;
            border: none;
            transition: var(--transition);
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: rgba(212, 168, 75, 0.05);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: var(--accent-light);
        }

        .faq-accordion .accordion-button::after {
            background-size: 1rem;
            opacity: 0.5;
            transition: var(--transition);
        }

        .faq-accordion .accordion-body {
            padding: 0.25rem 1.5rem 1.25rem;
            font-size: 0.95rem;
            color: var(--text-mid);
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .faq-section {
                padding: 3rem 0;
            }
            .faq-accordion .accordion-button {
                font-size: 0.9rem;
                padding: 0.9rem 1rem;
            }
            .faq-accordion .accordion-body {
                padding: 0.25rem 1rem 1rem;
                font-size: 0.875rem;
            }
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 5rem 0;
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 22, 40, 0.92) 0%, rgba(10, 22, 40, 0.78) 100%);
        }

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

        .cta-section h2 {
            font-size: 2.25rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.75rem;
        }

        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 2rem;
        }

        .cta-section .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
        }

        .cta-section .btn-cta-primary {
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: 1.05rem;
            padding: 0.9rem 2.8rem;
            border-radius: var(--radius-sm);
            border: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .cta-section .btn-cta-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(212, 168, 75, 0.3);
        }

        .cta-section .btn-cta-secondary {
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.9rem 2.8rem;
            border-radius: var(--radius-sm);
            border: 1.5px solid rgba(255, 255, 255, 0.3);
            transition: var(--transition);
        }

        .cta-section .btn-cta-secondary:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--accent);
            color: var(--accent);
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 3rem 0;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
            .cta-section .btn-cta-primary,
            .cta-section .btn-cta-secondary {
                padding: 0.75rem 1.8rem;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }
            .cta-section .cta-actions {
                flex-direction: column;
            }
        }

        /* ===== Footer ===== */
        .footer-main {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.7);
            padding: 3.5rem 0 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-main .footer-brand {
            font-size: 1.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-main .footer-brand .brand-icon-small {
            width: 30px;
            height: 30px;
            background: var(--accent);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 700;
        }

        .footer-main .footer-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
            line-height: 1.7;
        }

        .footer-main h5 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }

        .footer-main .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-main .footer-links li {
            margin-bottom: 0.5rem;
        }

        .footer-main .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .footer-main .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-main .footer-divider {
            border-color: rgba(255, 255, 255, 0.06);
            margin: 2rem 0 1.5rem;
        }

        .footer-main .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-main .footer-bottom a {
            color: rgba(255, 255, 255, 0.4);
        }

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

        .footer-main .footer-social {
            display: flex;
            gap: 0.75rem;
        }

        .footer-main .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .footer-main .footer-social a:hover {
            background: var(--accent);
            color: var(--primary);
        }

        @media (max-width: 768px) {
            .footer-main {
                padding: 2.5rem 0 1.5rem;
            }
            .footer-main .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Section Spacer ===== */
        .section-spacer {
            height: 1px;
            background: var(--border-light);
            margin: 0;
        }

        /* ===== Smooth Scroll Offset ===== */
        .scroll-offset {
            scroll-margin-top: 80px;
        }

        /* ===== Back to Top ===== */
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 44px;
            height: 44px;
            background: var(--primary);
            color: var(--accent);
            border: none;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            cursor: pointer;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            opacity: 0;
            visibility: hidden;
            z-index: 999;
        }

        .back-to-top.show {
            opacity: 1;
            visibility: visible;
        }

        .back-to-top:hover {
            background: var(--accent);
            color: var(--primary);
            transform: translateY(-3px);
        }

        /* ===== Bootstrap Overrides ===== */
        .btn {
            border-radius: var(--radius-sm);
        }

        .card {
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
        }

        .badge {
            font-weight: 600;
            border-radius: 100px;
        }

        .form-control:focus {
            box-shadow: 0 0 0 3px rgba(212, 168, 75, 0.15);
            border-color: var(--accent);
        }

        /* ===== Responsive Grid Improvements ===== */
        @media (max-width: 576px) {
            .row-cols-2>* {
                flex: 0 0 100%;
                max-width: 100%;
            }
        }

        /* ===== Accessibility ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Loading Animation ===== */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .fade-up {
            animation: fadeUp 0.6s ease forwards;
        }

        .fade-up-delay-1 {
            animation-delay: 0.1s;
        }
        .fade-up-delay-2 {
            animation-delay: 0.2s;
        }
        .fade-up-delay-3 {
            animation-delay: 0.3s;
        }

/* roulang page: article */
:root {
            --primary: #1a2a6c;
            --primary-light: #2d4a8e;
            --primary-dark: #0f1b4a;
            --accent: #e63946;
            --accent-hover: #c62835;
            --secondary: #f4a261;
            --bg-light: #f8f9fc;
            --bg-dark: #0f1b4a;
            --text-dark: #1a1a2e;
            --text-muted: #6c757d;
            --text-light: #f8f9fa;
            --border-color: #e9ecef;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow: 0 8px 30px rgba(0,0,0,0.08);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --container-width: 1200px;
        }

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

        body {
            font-family: var(--font-family);
            color: var(--text-dark);
            background: #ffffff;
            line-height: 1.7;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
        }

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

        /* ===== Navbar ===== */
        .navbar-main {
            background: #ffffff;
            box-shadow: 0 2px 20px rgba(0,0,0,0.06);
            padding: 12px 0;
            transition: var(--transition);
            border-bottom: 1px solid var(--border-color);
        }
        .navbar-main .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--primary);
            letter-spacing: -0.3px;
        }
        .navbar-main .navbar-brand:hover {
            color: var(--primary-light);
        }
        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            border-radius: 10px;
            font-size: 0.9rem;
            font-weight: 800;
            letter-spacing: 0;
        }
        .navbar-main .navbar-nav .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-dark);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .navbar-main .navbar-nav .nav-link:hover,
        .navbar-main .navbar-nav .nav-link:focus {
            color: var(--primary);
            background: rgba(26, 42, 108, 0.05);
        }
        .navbar-main .navbar-nav .nav-link.active {
            color: var(--primary);
            background: rgba(26, 42, 108, 0.08);
            font-weight: 600;
        }
        .navbar-main .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 18px;
            right: 18px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }
        .nav-search {
            position: relative;
            display: flex;
            align-items: center;
        }
        .nav-search .search-icon {
            position: absolute;
            left: 14px;
            color: var(--text-muted);
            font-size: 0.9rem;
            pointer-events: none;
        }
        .nav-search input {
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: 30px;
            padding: 8px 16px 8px 38px;
            font-size: 0.9rem;
            width: 200px;
            transition: var(--transition);
            outline: none;
        }
        .nav-search input:focus {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(26, 42, 108, 0.1);
            background: #fff;
        }
        .nav-cta {
            background: linear-gradient(135deg, var(--accent), #ff6b6b);
            color: #fff !important;
            padding: 10px 24px !important;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
            border: none;
            box-shadow: 0 4px 15px rgba(230, 57, 70, 0.3);
            white-space: nowrap;
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(230, 57, 70, 0.4);
            color: #fff !important;
        }
        .navbar-toggler {
            border: none;
            background: transparent;
            font-size: 1.5rem;
            color: var(--primary);
            padding: 4px 8px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }

        /* ===== Article Hero ===== */
        .article-hero {
            position: relative;
            padding: 60px 0 40px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary) 100%);
            color: var(--text-light);
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-1.webp') center center/cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }
        .article-hero .container-custom {
            position: relative;
            z-index: 1;
        }
        .article-hero h1 {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 24px;
            font-size: 0.9rem;
            opacity: 0.85;
            margin-top: 8px;
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta i {
            font-size: 0.85rem;
        }
        .article-category-badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 16px;
        }

        /* ===== Article Content ===== */
        .article-section {
            padding: 50px 0 70px;
            background: #fff;
        }
        .article-content-wrap {
            max-width: 820px;
            margin: 0 auto;
        }
        .article-body {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-dark);
        }
        .article-body p {
            margin-bottom: 1.5rem;
        }
        .article-body h2,
        .article-body h3,
        .article-body h4 {
            margin-top: 2rem;
            margin-bottom: 1rem;
            font-weight: 700;
            color: var(--primary);
        }
        .article-body h2 {
            font-size: 1.6rem;
        }
        .article-body h3 {
            font-size: 1.3rem;
        }
        .article-body img {
            border-radius: var(--radius);
            margin: 1.8rem 0;
            box-shadow: var(--shadow);
        }
        .article-body blockquote {
            border-left: 4px solid var(--accent);
            padding: 16px 24px;
            margin: 1.8rem 0;
            background: var(--bg-light);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-muted);
        }
        .article-body ul,
        .article-body ol {
            padding-left: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .article-body li {
            margin-bottom: 0.5rem;
        }
        .article-body a {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-body a:hover {
            color: var(--accent-hover);
        }
        .article-not-found {
            text-align: center;
            padding: 80px 20px;
        }
        .article-not-found .nf-icon {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .article-not-found h3 {
            font-size: 1.5rem;
            color: var(--text-dark);
            margin-bottom: 12px;
        }
        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .article-not-found .btn-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 12px 32px;
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition);
        }
        .article-not-found .btn-home:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow);
            color: #fff;
        }

        /* ===== Article Footer Nav ===== */
        .article-footer-nav {
            border-top: 1px solid var(--border-color);
            padding: 30px 0;
            margin-top: 40px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 16px;
        }
        .article-footer-nav a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-muted);
            font-weight: 500;
            transition: var(--transition);
        }
        .article-footer-nav a:hover {
            color: var(--primary);
        }

        /* ===== Related Articles ===== */
        .related-section {
            background: var(--bg-light);
            padding: 60px 0;
        }
        .related-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 32px;
            text-align: center;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .related-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-color);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }
        .related-card .rc-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .related-card .rc-body {
            padding: 20px;
        }
        .related-card .rc-body h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-dark);
        }
        .related-card .rc-body h4 a {
            color: inherit;
        }
        .related-card .rc-body h4 a:hover {
            color: var(--primary);
        }
        .related-card .rc-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .related-card .rc-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 10px;
        }

        /* ===== CTA ===== */
        .article-cta {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 50px 0;
            text-align: center;
            color: #fff;
        }
        .article-cta h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .article-cta p {
            font-size: 1.05rem;
            opacity: 0.85;
            max-width: 600px;
            margin: 0 auto 24px;
        }
        .article-cta .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: #fff;
            padding: 14px 36px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: 0 6px 20px rgba(230, 57, 70, 0.35);
        }
        .article-cta .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(230, 57, 70, 0.45);
            color: #fff;
        }

        /* ===== Footer ===== */
        .footer-main {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.85);
            padding: 60px 0 30px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .brand-icon-small {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--accent), #ff6b6b);
            color: #fff;
            border-radius: 8px;
            font-size: 0.8rem;
            font-weight: 800;
        }
        .footer-desc {
            font-size: 0.9rem;
            opacity: 0.7;
            line-height: 1.7;
            max-width: 340px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: rgba(255,255,255,0.08);
            border-radius: 50%;
            color: rgba(255,255,255,0.7);
            font-size: 1rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-3px);
        }
        .footer-main h5 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: rgba(255,255,255,0.65);
            font-size: 0.9rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
        }
        .footer-links a:hover {
            color: #fff;
            transform: translateX(4px);
        }
        .footer-divider {
            border-color: rgba(255,255,255,0.1);
            margin: 32px 0 24px;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            opacity: 0.6;
            gap: 12px;
        }
        .footer-bottom a {
            color: rgba(255,255,255,0.7);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-hero h1 {
                font-size: 1.8rem;
            }
            .article-content-wrap {
                padding: 0 16px;
            }
        }

        @media (max-width: 768px) {
            .navbar-main .navbar-brand {
                font-size: 1.2rem;
            }
            .nav-search input {
                width: 140px;
            }
            .article-hero {
                padding: 40px 0 30px;
            }
            .article-hero h1 {
                font-size: 1.5rem;
            }
            .article-meta {
                font-size: 0.8rem;
                gap: 10px 16px;
            }
            .article-body {
                font-size: 0.98rem;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-main .row > div {
                margin-bottom: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .navbar-main .navbar-brand {
                font-size: 1rem;
            }
            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 0.75rem;
            }
            .nav-search input {
                width: 100px;
                font-size: 0.8rem;
                padding: 6px 12px 6px 32px;
            }
            .nav-search .search-icon {
                left: 10px;
                font-size: 0.8rem;
            }
            .nav-cta {
                padding: 8px 16px !important;
                font-size: 0.8rem;
            }
            .article-hero h1 {
                font-size: 1.25rem;
            }
            .article-cta h3 {
                font-size: 1.2rem;
            }
            .article-cta .cta-btn {
                padding: 10px 24px;
                font-size: 0.9rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #f8d7da;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --bg-light: #f8f9fa;
            --bg-dark: #1a1a2e;
            --text-dark: #212529;
            --text-muted: #6c757d;
            --text-light: #f8f9fa;
            --border-color: #e9ecef;
            --border-radius: 12px;
            --border-radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
            --transition: all 0.3s ease;
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            color: var(--text-dark);
            background: #ffffff;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

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

        /* ===== 导航 ===== */
        .navbar-main {
            background: #ffffff;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
            height: var(--nav-height);
            padding: 0;
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
            z-index: 1040;
        }

        .navbar-main .container-custom {
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--secondary) !important;
            letter-spacing: -0.3px;
            padding: 0;
            margin: 0;
        }

        .navbar-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: 10px;
            font-size: 0.9rem;
            font-weight: 700;
            letter-spacing: 0;
        }

        .navbar-main .navbar-nav .nav-link {
            color: var(--text-dark);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 18px;
            border-radius: var(--border-radius-sm);
            transition: var(--transition);
            position: relative;
        }

        .navbar-main .navbar-nav .nav-link:hover,
        .navbar-main .navbar-nav .nav-link.active {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.06);
        }

        .navbar-main .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 18px;
            right: 18px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border-radius: 30px;
            padding: 4px 16px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .nav-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.12);
        }

        .nav-search .search-icon {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-right: 8px;
        }

        .nav-search input {
            border: none;
            background: transparent;
            padding: 8px 0;
            font-size: 0.9rem;
            width: 140px;
            outline: none;
            color: var(--text-dark);
        }

        .nav-search input::placeholder {
            color: var(--text-muted);
        }

        .nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
            color: #fff !important;
            padding: 10px 24px !important;
            border-radius: 30px !important;
            font-weight: 600 !important;
            font-size: 0.9rem !important;
            box-shadow: 0 4px 15px rgba(230, 57, 70, 0.3);
            transition: var(--transition);
            border: none !important;
            white-space: nowrap;
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(230, 57, 70, 0.4);
            color: #fff !important;
        }

        .navbar-toggler {
            border: none;
            padding: 8px 12px;
            font-size: 1.3rem;
            color: var(--secondary);
            background: transparent;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--primary);
        }

        @media (max-width: 991px) {
            .navbar-main .navbar-collapse {
                background: #ffffff;
                padding: 20px 24px;
                border-radius: var(--border-radius);
                box-shadow: var(--shadow-lg);
                margin-top: 8px;
                border: 1px solid var(--border-color);
            }
            .navbar-main .navbar-nav .nav-link {
                padding: 12px 16px;
                border-radius: var(--border-radius-sm);
            }
            .navbar-main .navbar-nav .nav-link.active::after {
                display: none;
            }
            .nav-search {
                width: 100%;
                margin: 8px 0;
            }
            .nav-search input {
                width: 100%;
            }
            .nav-cta {
                width: 100%;
                text-align: center;
                margin-top: 8px;
            }
        }

        /* ===== 页脚 ===== */
        .footer-main {
            background: var(--secondary);
            color: rgba(255, 255, 255, 0.85);
            padding: 60px 0 30px;
            margin-top: 0;
        }

        .footer-main .footer-brand {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-main .brand-icon-small {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: 9px;
            font-size: 0.85rem;
            font-weight: 700;
        }

        .footer-desc {
            font-size: 0.95rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.7);
            max-width: 360px;
        }

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.1rem;
            margin-right: 10px;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }

        .footer-main h5 {
            color: #fff;
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-main h5::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
        }

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

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-divider {
            border-color: rgba(255, 255, 255, 0.12);
            margin: 32px 0 24px;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
        }

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

        @media (max-width: 768px) {
            .footer-main {
                padding: 40px 0 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 页面通用 ===== */
        .section-padding {
            padding: 80px 0;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto 48px;
            line-height: 1.7;
        }

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

        @media (max-width: 768px) {
            .section-padding {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-subtitle {
                margin-bottom: 32px;
            }
        }

        /* ===== Hero Banner ===== */
        .hero-banner {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, var(--secondary) 0%, #16213e 100%);
            overflow: hidden;
            padding: 80px 0 60px;
        }

        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.15;
            z-index: 1;
        }

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

        .hero-banner .hero-tag {
            display: inline-block;
            background: rgba(230, 57, 70, 0.2);
            color: #f8d7da;
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(230, 57, 70, 0.3);
        }

        .hero-banner h1 {
            font-size: 3rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -0.8px;
            max-width: 720px;
        }

        .hero-banner h1 .highlight {
            color: var(--accent);
        }

        .hero-banner .hero-desc {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            line-height: 1.7;
            margin-bottom: 32px;
        }

        .hero-banner .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-banner .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 14px 36px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            box-shadow: 0 8px 30px rgba(230, 57, 70, 0.35);
            transition: var(--transition);
        }

        .hero-banner .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(230, 57, 70, 0.45);
            color: #fff;
        }

        .hero-banner .btn-outline-light-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            padding: 14px 36px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid rgba(255, 255, 255, 0.4);
            transition: var(--transition);
        }

        .hero-banner .btn-outline-light-custom:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-3px);
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 48px;
            flex-wrap: wrap;
        }

        .hero-stats .stat-item {
            text-align: center;
        }

        .hero-stats .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .hero-stats .stat-number .plus {
            color: var(--accent);
            font-size: 1.8rem;
        }

        .hero-stats .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .hero-banner {
                min-height: 400px;
                padding: 60px 0 40px;
            }
            .hero-banner h1 {
                font-size: 2rem;
            }
            .hero-banner .hero-desc {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 24px;
                margin-top: 32px;
            }
            .hero-stats .stat-number {
                font-size: 1.6rem;
            }
        }

        /* ===== 服务卡片 ===== */
        .service-card {
            background: #fff;
            border-radius: var(--border-radius);
            padding: 32px 28px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            height: 100%;
            box-shadow: var(--shadow-sm);
        }

        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }

        .service-card .icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: #fff;
            margin-bottom: 20px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        }

        .service-card .icon-wrap.icon-secondary {
            background: linear-gradient(135deg, var(--secondary-light), var(--secondary));
        }

        .service-card .icon-wrap.icon-accent {
            background: linear-gradient(135deg, var(--accent), #e07c3e);
        }

        .service-card .icon-wrap.icon-green {
            background: linear-gradient(135deg, #2a9d8f, #1b7a6e);
        }

        .service-card .icon-wrap.icon-purple {
            background: linear-gradient(135deg, #7b2cbf, #5a189a);
        }

        .service-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 12px;
        }

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

        .service-card .card-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 20px;
            margin-bottom: 14px;
        }

        /* ===== 流程步骤 ===== */
        .step-item {
            text-align: center;
            padding: 24px 16px;
            position: relative;
        }

        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0 auto 16px;
            box-shadow: 0 4px 15px rgba(230, 57, 70, 0.25);
        }

        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        .step-connector {
            display: none;
        }

        @media (min-width: 768px) {
            .step-connector {
                display: block;
                position: absolute;
                top: 36px;
                right: -30px;
                width: 60px;
                height: 2px;
                background: var(--border-color);
            }
            .step-connector i {
                position: absolute;
                right: -6px;
                top: -5px;
                color: var(--primary);
                font-size: 0.8rem;
            }
        }

        /* ===== 场景卡片 ===== */
        .scene-card {
            background: #fff;
            border-radius: var(--border-radius);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            height: 100%;
            box-shadow: var(--shadow-sm);
        }

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

        .scene-card .scene-img {
            height: 200px;
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

        .scene-card .scene-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .scene-card .scene-body {
            padding: 24px 22px 26px;
        }

        .scene-card .scene-body h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 10px;
        }

        .scene-card .scene-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .scene-card .scene-body .scene-tag {
            display: inline-block;
            background: var(--bg-light);
            color: var(--text-muted);
            font-size: 0.75rem;
            padding: 4px 14px;
            border-radius: 20px;
            margin-right: 6px;
            margin-bottom: 6px;
        }

        /* ===== 数据/统计板块 ===== */
        .stats-grid {
            background: linear-gradient(135deg, var(--secondary), #16213e);
            border-radius: var(--border-radius);
            padding: 48px 40px;
            color: #fff;
        }

        .stats-grid .stats-number {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .stats-grid .stats-number .accent {
            color: var(--accent);
        }

        .stats-grid .stats-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
        }

        @media (max-width: 768px) {
            .stats-grid {
                padding: 32px 20px;
            }
            .stats-grid .stats-number {
                font-size: 1.8rem;
            }
        }

        /* ===== FAQ ===== */
        .faq-accordion .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: var(--border-radius-sm) !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: none;
        }

        .faq-accordion .accordion-button {
            font-weight: 600;
            font-size: 1rem;
            color: var(--secondary);
            padding: 18px 24px;
            background: #fff;
            box-shadow: none;
            border: none;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: var(--primary-light);
        }

        .faq-accordion .accordion-button::after {
            background-size: 14px;
            transition: var(--transition);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: var(--primary);
        }

        .faq-accordion .accordion-body {
            padding: 8px 24px 20px;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            background: #fff;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--border-radius);
            padding: 60px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.webp') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 1;
        }

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

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 1.05rem;
            opacity: 0.9;
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: #fff;
            color: var(--primary-dark);
            padding: 14px 40px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
            transition: var(--transition);
        }

        .cta-section .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
            color: var(--primary-dark);
            background: #fff;
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 40px 24px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

        /* ===== 信任/合作 ===== */
        .trust-badge {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .trust-badge .badge-item {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--border-radius-sm);
            padding: 12px 24px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .trust-badge .badge-item i {
            color: var(--primary);
        }

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

        /* ===== 背景色辅助 ===== */
        .bg-soft {
            background: var(--bg-light);
        }

        .bg-soft-primary {
            background: rgba(230, 57, 70, 0.04);
        }

        /* ===== 响应式间距 ===== */
        @media (max-width: 576px) {
            .hero-banner h1 {
                font-size: 1.7rem;
            }
            .hero-banner .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-banner .btn-primary-custom,
            .hero-banner .btn-outline-light-custom {
                width: 100%;
                justify-content: center;
            }
            .hero-stats {
                flex-direction: column;
                gap: 16px;
                align-items: flex-start;
            }
            .hero-stats .stat-item {
                text-align: left;
                display: flex;
                align-items: baseline;
                gap: 8px;
            }
            .hero-stats .stat-number {
                font-size: 1.4rem;
            }
            .service-card {
                padding: 24px 20px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
        }