/* roulang page: index */
/* ========== Design Tokens ========== */
        :root {
            --primary: #3E78D9;
            --primary-light: #EAF1FB;
            --primary-dark: #2C5DA8;
            --accent: #EE6C2A;
            --accent-dark: #D9581C;
            --deep-blue: #0B1B2B;
            --footer-bg: #050D17;
            --bg: #F7FAFC;
            --card: #FFFFFF;
            --text: #1F2D3D;
            --text-secondary: #5B6C7F;
            --text-muted: #8899AA;
            --border: #E5EDF5;
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-pill: 100px;
            --shadow-sm: 0 2px 10px rgba(30, 64, 120, .06);
            --shadow-md: 0 8px 24px rgba(30, 64, 120, .08);
            --shadow-lg: 0 16px 40px rgba(30, 64, 120, .12);
            --transition: .25s ease;
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 1rem;
            letter-spacing: .01em;
            -webkit-font-smoothing: antialiased;
        }

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

        a:hover {
            color: var(--primary-dark);
        }

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: .5em;
        }

        p {
            margin-bottom: 1em;
        }

        ul,
        ol {
            padding-left: 1.25rem;
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        section {
            padding: 100px 0;
        }

        @media (max-width: 767.98px) {
            section {
                padding: 64px 0;
            }
        }

        /* ========== Buttons ========== */
        .btn {
            border-radius: var(--radius-md);
            font-weight: 600;
            padding: 10px 24px;
            border: 1px solid transparent;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            line-height: 1.4;
        }

        .btn:focus,
        .btn:active:focus {
            box-shadow: 0 0 0 .25rem rgba(62, 120, 217, .15);
        }

        .btn:active {
            transform: scale(.98);
        }

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

        .btn-brand-accent:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(238, 108, 42, .28);
        }

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

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

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

        .btn-brand-outline:hover {
            background: var(--primary-light);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
        }

        .btn-ghost-outline {
            background: rgba(255, 255, 255, .1);
            border-color: rgba(255, 255, 255, .35);
            color: #fff;
        }

        .btn-ghost-outline:hover {
            background: rgba(255, 255, 255, .18);
            border-color: rgba(255, 255, 255, .55);
            color: #fff;
        }

        .btn-hero-cta {
            height: 56px;
            padding: 0 32px;
            border-radius: 12px;
            font-size: 1.0625rem;
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-hero-cta:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 14px 30px rgba(238, 108, 42, .3);
        }

        .btn-nav-cta {
            height: 44px;
            padding: 0 22px;
            border-radius: var(--radius-md);
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .btn-nav-cta:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(238, 108, 42, .25);
        }

        .btn-hero-ghost {
            background: transparent;
            border: none;
            color: var(--primary);
            font-weight: 600;
            padding: 12px 16px;
        }

        .btn-hero-ghost:hover {
            color: var(--primary-dark);
            text-decoration: underline;
            background: transparent;
        }

        /* ========== Header & Navigation ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1040;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(30, 64, 120, .04);
        }

        .navbar {
            padding: 0;
            min-height: 72px;
        }

        .navbar-brand {
            padding: 0;
            margin: 0;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text);
            letter-spacing: .02em;
        }

        .navbar-brand:hover {
            color: var(--text);
        }

        .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
        }

        .navbar-nav {
            gap: 6px;
            margin-left: auto;
            margin-right: auto;
        }

        .nav-link {
            font-size: .9375rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 18px !important;
            border-radius: var(--radius-pill);
            transition: all var(--transition);
            position: relative;
        }

        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

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

        .nav-cta-wrap {
            display: flex;
            align-items: center;
        }

        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 10px;
            background: #fff;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            border-color: var(--primary);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3e%3cpath stroke='%233E78D9' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 8h22M4 15h22M4 22h22'/%3e%3c/svg%3e");
        }

        @media (max-width: 991.98px) {
            .navbar-collapse {
                padding: 16px 0 24px;
                border-top: 1px solid var(--border);
                margin-top: 14px;
            }

            .navbar-nav {
                margin-left: 0;
                margin-right: 0;
                gap: 4px;
                width: 100%;
            }

            .nav-link {
                padding: 12px 16px !important;
                border-radius: var(--radius-sm);
            }

            .nav-cta-wrap {
                order: -1;
                margin-bottom: 12px;
                width: 100%;
            }

            .nav-cta-wrap .btn-nav-cta {
                width: 100%;
                justify-content: center;
                height: 48px;
            }
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            background: linear-gradient(135deg, #F0F6FF 0%, #FFFFFF 60%);
            padding: 100px 0 90px;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image:
                radial-gradient(circle 3px at 12% 22%, rgba(62, 120, 217, .28) 50%, transparent 50%),
                radial-gradient(circle 2px at 35% 68%, rgba(238, 108, 42, .18) 50%, transparent 50%),
                radial-gradient(circle 3px at 68% 18%, rgba(44, 93, 168, .22) 50%, transparent 50%),
                radial-gradient(circle 2px at 82% 62%, rgba(62, 120, 217, .2) 50%, transparent 50%),
                radial-gradient(circle 1px at 26% 38%, rgba(44, 93, 168, .25) 50%, transparent 50%),
                radial-gradient(circle 1px at 58% 44%, rgba(238, 108, 42, .18) 50%, transparent 50%);
            background-size: 400px 300px;
            pointer-events: none;
            z-index: 0;
        }

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

        .hero h1 {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 700;
            margin-bottom: 18px;
            letter-spacing: -.01em;
        }

        .hero-lead {
            font-size: 1.125rem;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 520px;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }

        .hero-tags {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .hero-tags span {
            font-size: .8125rem;
            color: var(--text-muted);
            background: rgba(255, 255, 255, .5);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            padding: 6px 14px;
            letter-spacing: .02em;
        }

        .hero-visual {
            position: relative;
        }

        .hero-img-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid rgba(255, 255, 255, .6);
        }

        .hero-img-wrap img {
            width: 100%;
            height: auto;
            aspect-ratio: 4 / 3;
            object-fit: cover;
        }

        .hero-float-card {
            position: absolute;
            right: -14px;
            bottom: 28px;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            padding: 14px 18px;
            display: flex;
            align-items: center;
            gap: 12px;
            border: 1px solid var(--border);
            max-width: 240px;
        }

        .hero-float-card .float-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .hero-float-card strong {
            font-size: .9375rem;
            display: block;
            line-height: 1.3;
        }

        .hero-float-card p {
            font-size: .8125rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.4;
        }

        @media (max-width: 991.98px) {
            .hero {
                padding: 72px 0 64px;
            }

            .hero-visual {
                margin-top: 48px;
            }

            .hero-float-card {
                right: 10px;
                bottom: 20px;
            }
        }

        /* ========== Quick Index ========== */
        .quick-index {
            padding: 0;
            margin-top: -40px;
            position: relative;
            z-index: 5;
        }

        .quick-row {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border);
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 0;
            padding: 8px;
        }

        .quick-pill {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 20px 16px;
            font-size: .9375rem;
            font-weight: 600;
            color: var(--text);
            border-radius: var(--radius-md);
            transition: all var(--transition);
            text-align: center;
        }

        .quick-pill span {
            color: var(--primary);
            font-size: 1.0625rem;
            transition: transform var(--transition);
        }

        .quick-pill:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .quick-pill:hover span {
            transform: translateX(4px);
            color: var(--accent);
        }

        .quick-pill+.quick-pill {
            border-left: 1px solid var(--border);
        }

        @media (max-width: 767.98px) {
            .quick-index {
                margin-top: -24px;
            }

            .quick-row {
                grid-template-columns: 1fr;
                padding: 12px;
                gap: 8px;
            }

            .quick-pill+.quick-pill {
                border-left: none;
            }

            .quick-pill {
                padding: 14px 16px;
            }
        }

        /* ========== Section Head ========== */
        .section-head {
            max-width: 760px;
            margin: 0 auto 48px;
            text-align: center;
        }

        .section-head h2 {
            font-size: clamp(1.5rem, 2.5vw, 2.25rem);
            margin-bottom: 12px;
        }

        .section-head p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
        }

        @media (max-width: 767.98px) {
            .section-head {
                margin-bottom: 36px;
            }
        }

        /* ========== Pain Points ========== */
        .pain-points {
            padding-top: 80px;
            padding-bottom: 20px;
        }

        .pain-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 36px 32px;
            height: 100%;
            transition: transform var(--transition), box-shadow var(--transition);
            position: relative;
            overflow: hidden;
        }

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

        .pain-num {
            font-size: 2.75rem;
            font-weight: 700;
            color: var(--primary-light);
            line-height: 1;
            display: block;
            margin-bottom: 24px;
            letter-spacing: -.02em;
        }

        .pain-card h3 {
            font-size: 1.25rem;
            margin-bottom: 12px;
        }

        .pain-card p {
            color: var(--text-secondary);
            font-size: .9375rem;
            margin: 0;
            line-height: 1.75;
        }

        @media (max-width: 767.98px) {
            .pain-points {
                padding-top: 56px;
                padding-bottom: 8px;
            }

            .pain-card {
                padding: 28px 24px;
                margin-bottom: 16px;
            }
        }

        /* ========== Solution ========== */
        .solution {
            padding-top: 40px;
        }

        .solution-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 32px;
            height: 100%;
            transition: transform var(--transition), box-shadow var(--transition);
        }

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

        .solution-card h3 {
            font-size: 1.25rem;
            margin-bottom: 20px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--border);
            position: relative;
        }

        .solution-card h3::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            width: 44px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }

        .solution-card.accent {
            background: linear-gradient(160deg, #F0F6FF 0%, #FFFFFF 60%);
            border-color: transparent;
        }

        .solution-card.accent h3::after {
            background: var(--primary);
        }

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

        .check-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 8px 0;
            font-size: .9375rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .check-list li::before {
            content: '✓';
            display: flex;
            align-items: center;
            justify-content: center;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-size: .75rem;
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .solution-wide {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 36px;
            margin-top: 24px;
            display: block;
        }

        .solution-wide img {
            border-radius: var(--radius-md);
            width: 100%;
            height: 240px;
            object-fit: cover;
            box-shadow: var(--shadow-sm);
        }

        .solution-wide h3 {
            font-size: 1.375rem;
            margin-bottom: 14px;
        }

        .solution-wide p {
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 1em;
        }

        @media (max-width: 767.98px) {
            .solution {
                padding-top: 24px;
            }

            .solution-card {
                padding: 24px;
                margin-bottom: 16px;
            }

            .solution-wide {
                padding: 24px;
            }

            .solution-wide img {
                height: 200px;
                margin-bottom: 20px;
            }
        }

        /* ========== Stats ========== */
        .stats-section {
            background: var(--primary-light);
            padding: 100px 0;
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image:
                radial-gradient(circle 3px at 88% 20%, rgba(62, 120, 217, .22) 50%, transparent 50%),
                radial-gradient(circle 2px at 12% 74%, rgba(238, 108, 42, .16) 50%, transparent 50%),
                radial-gradient(circle 2px at 60% 12%, rgba(44, 93, 168, .18) 50%, transparent 50%);
            background-size: 320px 240px;
            pointer-events: none;
        }

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

        .stats-section>h2 {
            text-align: center;
            font-size: clamp(1.5rem, 2.5vw, 2.25rem);
            margin-bottom: 16px;
        }

        .stats-sub {
            text-align: center;
            color: var(--text-secondary);
            max-width: 620px;
            margin: 0 auto 56px;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-bottom: 56px;
        }

        .stat-item {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 40px 24px 32px;
            text-align: center;
            border: 1px solid var(--border);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .stat-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .stat-num {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -.02em;
        }

        .stat-label {
            font-size: .9375rem;
            color: var(--text-secondary);
            margin-top: 8px;
        }

        .stats-note {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            padding: 28px;
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .stats-note img {
            border-radius: var(--radius-md);
            width: 100%;
            height: 180px;
            object-fit: cover;
            box-shadow: var(--shadow-sm);
        }

        .stats-note p {
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.8;
        }

        @media (max-width: 991.98px) {
            .stats-grid {
                gap: 16px;
            }

            .stat-item {
                padding: 28px 16px 24px;
            }

            .stat-num {
                font-size: 2rem;
            }
        }

        @media (max-width: 767.98px) {
            .stats-section {
                padding: 64px 0;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
                margin-bottom: 36px;
            }

            .stats-note {
                flex-direction: column;
                padding: 20px;
            }

            .stats-note img {
                height: 160px;
            }
        }

        /* ========== Testimonials ========== */
        .testimonials {
            padding-top: 20px;
            padding-bottom: 40px;
        }

        .testimonial-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 32px 28px;
            height: 100%;
            position: relative;
            transition: transform var(--transition), box-shadow var(--transition);
            margin-bottom: 24px;
        }

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

        .quote-mark {
            font-size: 4rem;
            line-height: .8;
            color: var(--primary-light);
            font-family: Georgia, serif;
            margin-bottom: 16px;
            height: 40px;
        }

        .testimonial-card>p {
            color: var(--text-secondary);
            font-size: .9375rem;
            line-height: 1.8;
            margin-bottom: 24px;
            min-height: 110px;
        }

        .testimonial-user {
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 1px solid var(--border);
            padding-top: 16px;
        }

        .avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: .9375rem;
            flex-shrink: 0;
        }

        .testimonial-user strong {
            display: block;
            font-size: .9375rem;
            line-height: 1.3;
        }

        .testimonial-user span {
            font-size: .8125rem;
            color: var(--text-muted);
            display: block;
            line-height: 1.3;
        }

        .testimonial-note {
            text-align: center;
            font-size: .8125rem;
            color: var(--text-muted);
            margin-top: 8px;
        }

        @media (min-width: 992px) {
            .testimonial-col:nth-child(2) {
                transform: translateY(28px);
            }
        }

        @media (max-width: 991.98px) {
            .testimonial-card>p {
                min-height: 0;
            }
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .faq-accordion {
            max-width: 820px;
            margin: 0 auto;
        }

        .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            background: #fff;
            box-shadow: var(--shadow-sm);
            margin-bottom: 14px;
            overflow: hidden;
        }

        .accordion-button {
            background: #fff;
            color: var(--text);
            font-weight: 600;
            font-size: .9375rem;
            padding: 20px 24px;
            box-shadow: none;
            transition: all var(--transition);
        }

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

        .accordion-button:not(.collapsed) {
            background: var(--primary-light);
            color: var(--primary-dark);
            box-shadow: none;
        }

        .accordion-button::after {
            background: none;
            content: '+';
            font-size: 1.375rem;
            font-weight: 400;
            line-height: 1;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            transform: rotate(0deg);
            transition: transform .3s ease;
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(135deg);
            background: var(--primary);
            color: #fff;
            background-image: none;
        }

        .accordion-body {
            padding: 8px 24px 24px;
            background: var(--primary-light);
            color: var(--text-secondary);
            font-size: .9375rem;
            line-height: 1.8;
            border-top: 1px solid rgba(62, 120, 217, .08);
            border-radius: 0 0 var(--radius-md) var(--radius-md);
        }

        /* ========== News ========== */
        .news-section {
            padding-top: 40px;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            max-width: 860px;
            margin: 0 auto;
        }

        .news-card {
            display: flex;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 20px;
            transition: all var(--transition);
            color: var(--text);
            align-items: stretch;
            gap: 20px;
        }

        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(62, 120, 217, .25);
        }

        .news-thumb {
            width: 240px;
            min-height: 140px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--primary-light);
        }

        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .news-badge {
            display: inline-block;
            align-self: flex-start;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: .8125rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            margin-bottom: 10px;
            letter-spacing: .02em;
        }

        .news-body h4 {
            font-size: 1.0625rem;
            margin-bottom: 8px;
            line-height: 1.45;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        .news-body p {
            font-size: .875rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 12px;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            flex: 1;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: .8125rem;
            color: var(--text-muted);
        }

        .news-more {
            color: var(--primary);
            font-weight: 600;
            margin-left: auto;
            transition: color var(--transition);
        }

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

        .news-empty {
            max-width: 860px;
            margin: 24px auto 0;
            border: 1.5px dashed var(--border);
            border-radius: var(--radius-lg);
            background: #fff;
            padding: 48px 24px;
            text-align: center;
            color: var(--text-muted);
            font-size: .9375rem;
        }

        @media (max-width: 767.98px) {
            .news-card {
                flex-direction: column;
                padding: 16px;
            }

            .news-thumb {
                width: 100%;
                height: 160px;
                min-height: 0;
            }

            .news-meta {
                flex-wrap: wrap;
                gap: 8px;
            }

            .news-more {
                margin-left: 0;
            }
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--deep-blue);
            padding: 100px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image:
                radial-gradient(circle 3px at 15% 30%, rgba(255, 255, 255, .12) 50%, transparent 50%),
                radial-gradient(circle 2px at 72% 22%, rgba(255, 255, 255, .1) 50%, transparent 50%),
                radial-gradient(circle 3px at 82% 68%, rgba(255, 255, 255, .08) 50%, transparent 50%),
                radial-gradient(circle 2px at 38% 78%, rgba(255, 255, 255, .12) 50%, transparent 50%),
                radial-gradient(circle 1px at 58% 40%, rgba(255, 255, 255, .1) 50%, transparent 50%),
                radial-gradient(circle 1px at 90% 46%, rgba(255, 255, 255, .08) 50%, transparent 50%);
            background-size: 360px 280px;
            pointer-events: none;
        }

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

        .cta-section h2 {
            color: #fff;
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            margin-bottom: 16px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, .7);
            font-size: 1rem;
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .cta-buttons .btn {
            height: 52px;
            padding: 0 30px;
            border-radius: 12px;
        }

        @media (max-width: 767.98px) {
            .cta-section {
                padding: 64px 0;
            }

            .cta-buttons .btn {
                width: 100%;
                max-width: 280px;
            }
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--footer-bg);
            color: rgba(255, 255, 255, .7);
            padding: 72px 0 0;
            font-size: .875rem;
        }

        .footer-grid {
            padding-bottom: 48px;
        }

        .footer-brand .footer-logo {
            font-size: 1.375rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand p {
            color: rgba(255, 255, 255, .55);
            line-height: 1.7;
            max-width: 260px;
            margin: 0;
        }

        .footer-col h4 {
            color: #fff;
            font-size: .9375rem;
            margin-bottom: 20px;
            font-weight: 600;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

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

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

        .footer-col a {
            color: rgba(255, 255, 255, .6);
            transition: color var(--transition), padding-left var(--transition);
            display: inline-block;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 20px 0;
            text-align: center;
            color: rgba(255, 255, 255, .4);
            font-size: .8125rem;
        }

        @media (max-width: 991.98px) {
            .footer-grid {
                row-gap: 36px;
            }

            .footer-col {
                margin-bottom: 12px;
            }
        }

        @media (max-width: 575.98px) {
            .site-footer {
                padding-top: 56px;
            }

            .footer-grid {
                display: block;
            }

            .footer-col {
                margin-bottom: 32px;
            }
        }

        /* ========== Misc ========== */
        .text-primary-custom {
            color: var(--primary) !important;
        }

        .text-accent-custom {
            color: var(--accent) !important;
        }

        .bg-light-custom {
            background: var(--primary-light) !important;
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: .01ms !important;
                transition-duration: .01ms !important;
                scroll-behavior: auto !important;
            }
        }

/* roulang page: article */
:root {
            --primary: #3E78D9;
            --primary-light: #EAF1FB;
            --primary-dark: #2C5DA8;
            --accent: #EE6C2A;
            --accent-hover: #D9581C;
            --space-blue: #0B1B2B;
            --footer-dark: #050D17;
            --bg: #F7FAFC;
            --card-bg: #FFFFFF;
            --text: #1F2D3D;
            --text-secondary: #5B6C7F;
            --text-muted: #8899AA;
            --border: #E5EDF5;
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-pill: 100px;
            --shadow-sm: 0 2px 10px rgba(30,64,120,.06);
            --shadow-md: 0 8px 24px rgba(30,64,120,.08);
            --shadow-lg: 0 16px 40px rgba(30,64,120,.12);
            --space-section: 100px;
            --space-section-mobile: 64px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .25s ease;
        }

        a:hover {
            color: var(--primary-dark);
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            outline: none;
        }

        .container {
            max-width: 1200px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: #ffffff;
            border-bottom: 1px solid var(--border);
            height: 72px;
            display: flex;
            align-items: center;
        }

        .site-header .navbar {
            padding: 0;
            width: 100%;
        }

        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text);
            letter-spacing: .01em;
            padding: 0;
        }

        .navbar-brand:hover {
            color: var(--primary);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 10px;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .navbar-nav {
            margin-left: auto;
            margin-right: 24px;
            gap: 4px;
        }

        .nav-item .nav-link {
            display: block;
            padding: 8px 16px;
            font-size: .9375rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-md);
            transition: all .25s ease;
            position: relative;
            background: transparent;
            border: none;
        }

        .nav-item .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-item .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .nav-item .nav-link.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-cta-wrap {
            margin-left: auto;
            flex-shrink: 0;
        }

        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 44px;
            padding: 0 20px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: .9375rem;
            border: none;
            box-shadow: var(--shadow-sm);
            transition: all .25s ease;
        }

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

        .btn-nav-cta:active {
            transform: scale(.98);
        }

        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 6px 10px;
            background: transparent;
        }

        .navbar-toggler-icon {
            width: 20px;
            height: 20px;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%233E78D9' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
        }

        /* ===== Article Hero ===== */
        .article-hero {
            background: linear-gradient(135deg, #f0f6ff 0%, #ffffff 60%);
            border-bottom: 1px solid var(--border);
            padding: 56px 0 48px;
            position: relative;
            overflow: hidden;
        }

        .article-hero::before {
            content: "";
            position: absolute;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(62, 120, 217, .06) 0%, transparent 70%);
            top: -80px;
            right: -60px;
            pointer-events: none;
        }

        .breadcrumb-wrap {
            margin-bottom: 24px;
        }

        .breadcrumb-wrap .breadcrumb {
            margin: 0;
            padding: 0;
            background: transparent;
        }

        .breadcrumb-wrap .breadcrumb-item {
            font-size: .875rem;
            color: var(--text-muted);
        }

        .breadcrumb-wrap .breadcrumb-item a {
            color: var(--text-muted);
            transition: color .2s;
        }

        .breadcrumb-wrap .breadcrumb-item a:hover {
            color: var(--primary);
        }

        .breadcrumb-wrap .breadcrumb-item.active {
            color: var(--text-secondary);
            max-width: 340px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .breadcrumb-item + .breadcrumb-item::before {
            color: #c4d2e0;
        }

        .article-title {
            font-size: clamp(1.75rem, 3.2vw, 2.5rem);
            font-weight: 700;
            line-height: 1.35;
            color: var(--text);
            margin: 0 0 20px;
            letter-spacing: -.01em;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 24px;
            align-items: center;
            color: var(--text-secondary);
            font-size: .875rem;
        }

        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .meta-item i {
            color: var(--text-muted);
            font-size: .8125rem;
        }

        .category-badge {
            display: inline-block;
            padding: 4px 14px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: var(--radius-pill);
            font-size: .8125rem;
            font-weight: 600;
        }

        /* ===== Article Main ===== */
        .article-section {
            padding: 64px 0 40px;
        }

        .article-main {
            max-width: 780px;
            margin: 0 auto;
        }

        .article-content {
            font-size: 1rem;
            line-height: 1.8;
            color: var(--text);
            word-break: break-word;
        }

        .article-content p {
            margin-bottom: 1.5em;
            letter-spacing: .02em;
        }

        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin: 2.5em 0 1em;
            color: var(--text);
            padding-bottom: .4em;
            border-bottom: 1px solid var(--border);
        }

        .article-content h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin: 2em 0 .9em;
            color: var(--text);
        }

        .article-content h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin: 1.6em 0 .8em;
            color: var(--text);
        }

        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-content a:hover {
            color: var(--primary-dark);
        }

        .article-content img {
            border-radius: var(--radius-md);
            margin: 1.8em 0;
            box-shadow: var(--shadow-sm);
        }

        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-light);
            padding: 16px 24px;
            margin: 1.8em 0;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--text-secondary);
            font-style: normal;
        }

        .article-content blockquote p {
            margin-bottom: .5em;
        }

        .article-content blockquote p:last-child {
            margin-bottom: 0;
        }

        .article-content ul,
        .article-content ol {
            padding-left: 1.6em;
            margin: 1.2em 0 1.5em;
        }

        .article-content li {
            margin-bottom: .5em;
            line-height: 1.7;
        }

        .article-content ul li::marker {
            color: var(--primary);
        }

        .article-content ol li::marker {
            font-weight: 700;
            color: var(--primary);
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.8em 0;
            font-size: .9375rem;
        }

        .article-content table th,
        .article-content table td {
            border: 1px solid var(--border);
            padding: 10px 14px;
            text-align: left;
        }

        .article-content table th {
            background: var(--primary-light);
            font-weight: 600;
            color: var(--text);
        }

        .article-content table tr:nth-child(even) td {
            background: #f8fafd;
        }

        .article-content code {
            background: #f0f3f7;
            padding: 2px 8px;
            border-radius: 6px;
            font-size: .9em;
            color: var(--primary-dark);
        }

        .article-content pre {
            background: var(--space-blue);
            color: #e8eef5;
            padding: 20px 24px;
            border-radius: var(--radius-md);
            overflow-x: auto;
            margin: 1.8em 0;
            font-size: .9rem;
        }

        .article-content pre code {
            background: transparent;
            color: inherit;
            padding: 0;
        }

        .article-content hr {
            border: none;
            border-top: 1px solid var(--border);
            margin: 2em 0;
        }

        /* ===== Tags ===== */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin: 40px 0 30px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }

        .tag-badge {
            display: inline-block;
            padding: 5px 14px;
            background: #f0f4f9;
            color: var(--text-secondary);
            border-radius: var(--radius-pill);
            font-size: .8125rem;
            font-weight: 500;
            transition: all .2s ease;
        }

        .tag-badge:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        /* ===== Pagination ===== */
        .article-pagination {
            display: flex;
            justify-content: space-between;
            gap: 16px;
            margin: 30px 0 0;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            flex-wrap: wrap;
        }

        .pag-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            font-size: .875rem;
            color: var(--text-secondary);
            transition: all .25s ease;
            box-shadow: var(--shadow-sm);
        }

        .pag-link:hover {
            color: var(--primary);
            border-color: var(--primary);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .pag-link i {
            font-size: .8125rem;
        }

        /* ===== Article Not Found ===== */
        .article-not-found {
            text-align: center;
            padding: 60px 20px;
            background: #fff;
            border: 1px dashed var(--border);
            border-radius: var(--radius-lg);
        }

        .article-not-found h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }

        .article-not-found p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 44px;
            padding: 0 24px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-md);
            font-weight: 600;
            transition: all .25s ease;
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        /* ===== Related Posts ===== */
        .related-posts {
            background: #fff;
            padding: var(--space-section-mobile) 0 64px;
            border-top: 1px solid var(--border);
        }

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

        .section-title {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

        .section-subtitle {
            color: var(--text-muted);
            font-size: .9375rem;
            max-width: 520px;
            margin: 0 auto;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .post-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all .25s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .post-card-img {
            width: 100%;
            height: 190px;
            object-fit: cover;
            background: var(--primary-light);
        }

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

        .post-card-cat {
            display: inline-block;
            padding: 3px 12px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: var(--radius-pill);
            font-size: .75rem;
            font-weight: 600;
            margin-bottom: 12px;
            align-self: flex-start;
        }

        .post-card-body h3 {
            font-size: 1.0625rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.45;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .post-card-body h3 a {
            color: var(--text);
            transition: color .2s;
        }

        .post-card-body h3 a:hover {
            color: var(--primary);
        }

        .post-card-desc {
            font-size: .875rem;
            color: var(--text-secondary);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
            flex: 1;
        }

        .post-card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: .8125rem;
            color: var(--text-muted);
            border-top: 1px solid #f0f4f8;
            padding-top: 14px;
        }

        .post-card-btn {
            color: var(--primary);
            font-weight: 600;
            font-size: .8125rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .post-card-btn:hover {
            color: var(--primary-dark);
        }

        .related-more {
            text-align: center;
            margin-top: 40px;
        }

        .btn-outline-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 44px;
            padding: 0 24px;
            background: #fff;
            border: 1px solid var(--primary);
            color: var(--primary);
            border-radius: var(--radius-md);
            font-weight: 600;
            transition: all .25s ease;
        }

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

        /* ===== CTA ===== */
        .cta-section {
            background: var(--space-blue);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image:
                radial-gradient(circle at 20% 30%, rgba(255,255,255,.05) 1px, transparent 1px),
                radial-gradient(circle at 80% 70%, rgba(255,255,255,.04) 1px, transparent 1px);
            background-size: 60px 60px, 80px 80px;
            pointer-events: none;
        }

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

        .cta-title {
            font-size: clamp(1.5rem, 3vw, 2.25rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-desc {
            color: rgba(255,255,255,.75);
            font-size: .9375rem;
            max-width: 480px;
            margin: 0 auto 36px;
        }

        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            height: 56px;
            padding: 0 36px;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: 12px;
            font-size: 1rem;
            font-weight: 700;
            box-shadow: 0 8px 24px rgba(238, 108, 42, .35);
            transition: all .25s ease;
        }

        .btn-cta-large:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(238, 108, 42, .4);
        }

        .btn-cta-large:active {
            transform: scale(.98);
        }

        .btn-cta-ghost {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 56px;
            padding: 0 24px;
            background: rgba(255,255,255,.08);
            color: rgba(255,255,255,.85);
            border: 1px solid rgba(255,255,255,.2);
            border-radius: 12px;
            font-weight: 600;
            margin-left: 12px;
            transition: all .25s ease;
        }

        .btn-cta-ghost:hover {
            background: rgba(255,255,255,.14);
            color: #fff;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--footer-dark);
            color: rgba(255,255,255,.7);
            padding-top: 72px;
        }

        .footer-grid {
            padding-bottom: 48px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand .footer-logo .logo-icon {
            background: rgba(255,255,255,.1);
            color: #fff;
        }

        .footer-brand p {
            font-size: .875rem;
            color: rgba(255,255,255,.55);
            line-height: 1.6;
            max-width: 280px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: .9375rem;
            font-weight: 600;
            margin-bottom: 18px;
            letter-spacing: .02em;
        }

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

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

        .footer-col ul li a {
            color: rgba(255,255,255,.55);
            font-size: .875rem;
            transition: color .2s ease;
        }

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

        .footer-col ul li span {
            font-size: .875rem;
            color: rgba(255,255,255,.5);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,.08);
            padding: 20px 0;
            text-align: center;
            font-size: .8125rem;
            color: rgba(255,255,255,.35);
        }

        /* ===== Responsive ===== */
        @media (max-width: 991.98px) {
            .site-header {
                height: auto;
                min-height: 72px;
            }

            .navbar-collapse {
                background: #fff;
                padding: 16px 0;
                border-top: 1px solid var(--border);
                margin-top: 8px;
            }

            .navbar-nav {
                margin: 0;
                gap: 2px;
            }

            .nav-cta-wrap {
                margin: 12px 0 4px;
                width: 100%;
            }

            .btn-nav-cta {
                width: 100%;
                justify-content: center;
            }

            .article-hero {
                padding: 40px 0 32px;
            }

            .related-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .footer-grid {
                row-gap: 32px;
            }
        }

        @media (max-width: 767.98px) {
            .article-section {
                padding: 40px 0 32px;
            }

            .article-title {
                font-size: 1.6rem;
                line-height: 1.4;
            }

            .article-meta {
                gap: 8px 16px;
            }

            .related-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .cta-section {
                padding: 56px 0;
            }

            .btn-cta-ghost {
                margin-left: 0;
                margin-top: 12px;
            }

            .article-pagination {
                flex-direction: column;
                align-items: stretch;
            }

            .pag-link {
                justify-content: center;
            }

            .site-footer {
                padding-top: 56px;
            }
        }

        @media (max-width: 575.98px) {
            .article-hero {
                padding: 32px 0 28px;
            }

            .breadcrumb-wrap .breadcrumb-item.active {
                max-width: 200px;
            }

            .article-content {
                font-size: .9375rem;
            }

            .article-content h2 {
                font-size: 1.25rem;
            }

            .article-content h3 {
                font-size: 1.125rem;
            }

            .post-card-img {
                height: 160px;
            }

            .footer-bottom {
                font-size: .75rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #3E78D9;
            --primary-light: #EAF1FB;
            --primary-dark: #2C5DA8;
            --accent: #EE6C2A;
            --accent-hover: #D9581C;
            --deep-space: #0B1B2B;
            --footer-bg: #050D17;
            --page-bg: #F7FAFC;
            --card-bg: #FFFFFF;
            --text-main: #1F2D3D;
            --text-secondary: #5B6C7F;
            --text-muted: #8899AA;
            --border: #E5EDF5;
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-pill: 100px;
            --shadow-sm: 0 2px 10px rgba(30, 64, 120, .06);
            --shadow-md: 0 8px 24px rgba(30, 64, 120, .08);
            --shadow-lg: 0 16px 40px rgba(30, 64, 120, .12);
            --space-section: 100px;
            --space-mobile: 64px;
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background-color: var(--page-bg);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .2s, border-color .2s, background-color .2s, box-shadow .2s, transform .2s;
        }

        a:hover {
            color: var(--primary-dark);
        }

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

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

        .container {
            max-width: 1200px;
        }

        h1,
        h2,
        h3,
        h4,
        h5 {
            font-weight: 700;
            letter-spacing: .02em;
            line-height: 1.3;
        }

        .col-lg-6 .intro-text-inner {
            margin-top: 20px;
        }

        .col-lg-6 .intro-text-inner:first-child {
            margin-top: 0;
        }

        /* ===== Header / Navbar ===== */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .navbar {
            min-height: 72px;
            padding: 0;
        }

        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: .01em;
            padding: 0;
            transition: color .2s;
        }

        .navbar-brand:hover {
            color: var(--primary);
        }

        .logo-icon {
            font-size: 1.4rem;
            color: var(--accent);
            line-height: 1;
        }

        .navbar-nav {
            margin-left: 40px;
            gap: 4px;
            align-items: center;
        }

        .nav-link {
            color: var(--text-secondary) !important;
            font-weight: 500;
            padding: 8px 16px !important;
            border-radius: 8px;
            font-size: .9375rem;
            transition: color .25s, background-color .25s;
        }

        .nav-link:hover {
            color: var(--primary) !important;
            background-color: var(--primary-light);
        }

        .nav-link.active {
            color: var(--primary-dark) !important;
            background-color: var(--primary-light);
            font-weight: 600;
        }

        .nav-cta-wrap {
            margin-left: auto;
            display: flex;
            align-items: center;
        }

        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: 10px;
            height: 44px;
            padding: 0 22px;
            font-weight: 600;
            font-size: .9375rem;
            letter-spacing: .02em;
            transition: background-color .25s, box-shadow .25s, transform .25s;
            white-space: nowrap;
        }

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

        .btn-nav-cta:active {
            transform: scale(.98);
        }

        .navbar-toggler {
            border: none;
            padding: 6px 10px;
            background: transparent;
        }

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

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(31,45,61,.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
            width: 26px;
            height: 26px;
        }

        /* ===== Page Hero ===== */
        .page-hero {
            background: linear-gradient(135deg, #EAF1FB 0%, #F7FAFC 55%, #FFFFFF 100%);
            padding: 80px 0 72px;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border);
        }

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

        .breadcrumb-line {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: .8125rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .breadcrumb-line a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color .2s;
        }

        .breadcrumb-line a:hover {
            color: var(--primary);
        }

        .breadcrumb-sep {
            color: var(--text-muted);
        }

        .page-hero h1 {
            font-size: clamp(1.6rem, 3.4vw, 2.5rem);
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: .01em;
            line-height: 1.3;
            margin-bottom: 20px;
            max-width: 780px;
        }

        .page-hero .hero-desc {
            font-size: 1.0625rem;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 640px;
            margin-bottom: 0;
        }

        .star-field {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 1;
        }

        .star-dot {
            position: absolute;
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: rgba(62, 120, 217, .2);
        }

        .star-cross {
            position: absolute;
            color: rgba(62, 120, 217, .3);
            font-size: 16px;
            line-height: 1;
        }

        /* ===== Intro Section ===== */
        .intro-section {
            padding: var(--space-section) 0;
        }

        .section-title {
            font-size: clamp(1.5rem, 2.5vw, 2.25rem);
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: .02em;
            margin-bottom: 16px;
        }

        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.8;
            max-width: 680px;
            margin-bottom: 36px;
        }

        .intro-image-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border);
            background: var(--primary-light);
            height: 100%;
            min-height: 320px;
            position: relative;
        }

        .intro-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }

        .intro-image-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(11, 27, 43, .15));
            pointer-events: none;
        }

        .intro-text-wrap {
            padding: 8px 0;
        }

        .intro-text-inner {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.85;
            margin-bottom: 20px;
        }

        .intro-text-inner:last-child {
            margin-bottom: 0;
        }

        .intro-tags {
            margin-top: 28px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .intro-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-light);
            color: var(--primary-dark);
            border-radius: 100px;
            padding: 6px 16px;
            font-size: .8125rem;
            font-weight: 500;
        }

        /* ===== Subnav Pill Section ===== */
        .subnav-section {
            padding: 0 0 var(--space-section);
        }

        .subnav-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 36px 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .subnav-label {
            font-size: .875rem;
            color: var(--text-muted);
            font-weight: 500;
            margin-right: 4px;
            white-space: nowrap;
        }

        .subnav-pill {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 28px;
            border-radius: var(--radius-pill);
            border: 1px solid var(--border);
            background: var(--page-bg);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: .9375rem;
            text-decoration: none;
            transition: all .25s;
            box-shadow: var(--shadow-sm);
        }

        .subnav-pill:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .subnav-pill:active {
            transform: translateY(0) scale(.98);
        }

        .subnav-pill .pill-icon {
            font-size: 1rem;
            color: var(--primary);
        }

        /* ===== Info Panel Section ===== */
        .info-panel-section {
            padding: 0 0 var(--space-section);
        }

        .info-panel-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .info-panel {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 32px;
            height: 100%;
            transition: box-shadow .25s, transform .25s;
        }

        .info-panel:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

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

        .info-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border);
            font-size: .9375rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .info-list li:last-child {
            border-bottom: none;
            padding-bottom: 4px;
        }

        .info-list-num {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            flex-shrink: 0;
            font-family: 'Segoe UI', sans-serif;
            min-width: 26px;
        }

        .info-item-title {
            font-weight: 600;
            color: var(--text-main);
            display: block;
            margin-bottom: 4px;
        }

        .process-list {
            list-style: none;
            padding: 0;
            margin: 0;
            counter-reset: step;
        }

        .process-list li {
            counter-increment: step;
            display: flex;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border);
            align-items: flex-start;
        }

        .process-list li:last-child {
            border-bottom: none;
            padding-bottom: 4px;
        }

        .process-step {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: .875rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .process-content {
            font-size: .9375rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .process-content strong {
            font-weight: 600;
            color: var(--text-main);
            display: block;
            margin-bottom: 4px;
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            padding: 0 0 var(--space-section);
        }

        .faq-accordion {
            max-width: 860px;
        }

        .faq-accordion .accordion-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 12px !important;
            box-shadow: var(--shadow-sm);
            margin-bottom: 16px;
            overflow: hidden;
            transition: box-shadow .25s;
        }

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

        .faq-accordion .accordion-button {
            background: transparent;
            color: var(--text-main);
            font-weight: 600;
            font-size: 1rem;
            padding: 22px 28px;
            box-shadow: none;
            border-radius: 0;
            text-align: left;
            position: relative;
            transition: color .25s, background-color .25s;
        }

        .faq-accordion .accordion-button::after {
            background: none;
            content: '';
            width: 10px;
            height: 10px;
            border-right: 2px solid var(--text-secondary);
            border-bottom: 2px solid var(--text-secondary);
            transform: rotate(45deg) translate(-2px, -2px);
            transition: transform .3s;
            flex-shrink: 0;
            margin-left: auto;
            margin-top: 4px;
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(-135deg) translate(-2px, 2px);
            border-color: var(--primary);
        }

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

        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(62, 120, 217, .15);
        }

        .faq-accordion .accordion-body {
            background: var(--primary-light);
            color: var(--text-secondary);
            font-size: .9375rem;
            line-height: 1.85;
            padding: 4px 28px 24px;
            border-top: 1px solid rgba(62, 120, 217, .1);
        }

        /* ===== Recommend Section ===== */
        .recommend-section {
            padding: 0 0 var(--space-section);
        }

        .article-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: box-shadow .25s, transform .25s;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .article-card:active {
            transform: scale(.99);
        }

        .article-thumb {
            height: 200px;
            overflow: hidden;
            background: var(--primary-light);
            position: relative;
        }

        .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .article-card:hover .article-thumb img {
            transform: scale(1.04);
        }

        .article-body {
            padding: 28px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .badge-cat {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: .8125rem;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            font-weight: 500;
            margin-bottom: 14px;
            letter-spacing: .02em;
            align-self: flex-start;
        }

        .article-body h3 {
            font-size: 1.125rem;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .article-body p {
            color: var(--text-secondary);
            font-size: .9375rem;
            line-height: 1.75;
            margin-bottom: 22px;
            flex: 1;
        }

        .read-more {
            color: var(--primary);
            font-size: .875rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            text-decoration: none;
            transition: gap .25s, color .25s;
        }

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

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--deep-space);
            color: #fff;
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-inner {
            max-width: 720px;
            margin: 0 auto;
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .cta-inner h2 {
            font-size: clamp(1.5rem, 2.5vw, 2.25rem);
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: .02em;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, .75);
            font-size: .9375rem;
            margin-bottom: 36px;
            line-height: 1.75;
        }

        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: 12px;
            padding: 14px 36px;
            font-size: 1rem;
            font-weight: 600;
            letter-spacing: .02em;
            transition: background-color .25s, transform .25s, box-shadow .25s;
            box-shadow: 0 4px 14px rgba(238, 108, 42, .25);
        }

        .btn-accent:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(238, 108, 42, .35);
        }

        .btn-accent:active {
            transform: scale(.98);
        }

        .btn-outline-mild {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, .08);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .25);
            border-radius: 12px;
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 500;
            transition: background-color .25s, border-color .25s, transform .25s;
        }

        .btn-outline-mild:hover {
            background: rgba(255, 255, 255, .15);
            border-color: rgba(255, 255, 255, .4);
            color: #fff;
            transform: translateY(-2px);
        }

        .cta-stars {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 1;
        }

        .cta-stars .star-dot {
            background: rgba(255, 255, 255, .15);
        }

        .cta-stars .star-cross {
            color: rgba(255, 255, 255, .15);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--footer-bg);
            color: rgba(255, 255, 255, .75);
            padding: 72px 0 0;
            font-size: .875rem;
        }

        .footer-grid {
            padding-bottom: 48px;
        }

        .footer-brand {
            margin-bottom: 28px;
        }

        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-logo .logo-icon {
            color: var(--accent);
        }

        .footer-brand p {
            color: rgba(255, 255, 255, .55);
            max-width: 260px;
            font-size: .875rem;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .footer-col {
            margin-bottom: 24px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: .02em;
        }

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

        .footer-col ul li {
            margin-bottom: 12px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, .6);
            text-decoration: none;
            transition: color .2s;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 24px 0;
            font-size: .8125rem;
            color: rgba(255, 255, 255, .4);
            text-align: center;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199px) {
            .navbar-nav {
                margin-left: 20px;
            }
        }

        @media (max-width: 991.98px) {
            .navbar {
                min-height: 64px;
            }
            .navbar-nav {
                margin-left: 0;
                width: 100%;
                padding: 10px 0 6px;
                gap: 2px;
            }
            .nav-link {
                padding: 10px 16px !important;
                border-radius: var(--radius-md);
            }
            .nav-cta-wrap {
                width: 100%;
                margin-top: 14px;
                padding-bottom: 20px;
            }
            .btn-nav-cta {
                width: 100%;
                height: 48px;
            }
            .page-hero {
                padding: 56px 0 48px;
            }
            .page-hero h1 {
                font-size: 1.6rem;
            }
            .intro-section {
                padding: var(--space-mobile) 0;
            }
            .intro-image-wrap {
                min-height: 260px;
                margin-bottom: 28px;
            }
            .intro-image-wrap img {
                position: relative;
                min-height: 260px;
            }
            .subnav-section {
                padding: 0 0 var(--space-mobile);
            }
            .subnav-card {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
                padding: 28px 20px;
                gap: 12px;
            }
            .subnav-label {
                margin-right: 0;
                margin-bottom: 4px;
                display: block;
            }
            .subnav-pill {
                justify-content: center;
                width: 100%;
            }
            .info-panel-section {
                padding: 0 0 var(--space-mobile);
            }
            .info-panel {
                padding: 24px;
                margin-bottom: 16px;
            }
            .faq-section {
                padding: 0 0 var(--space-mobile);
            }
            .faq-accordion .accordion-button {
                padding: 18px 20px;
                font-size: .9375rem;
            }
            .faq-accordion .accordion-body {
                padding: 4px 20px 20px;
            }
            .recommend-section {
                padding: 0 0 var(--space-mobile);
            }
            .article-thumb {
                height: 180px;
            }
            .cta-section {
                padding: var(--space-mobile) 0;
            }
            .footer-grid .col-lg-4,
            .footer-grid .col-lg-2,
            .footer-grid .col-lg-3 {
                flex: 0 0 50%;
                max-width: 50%;
            }
        }

        @media (max-width: 575px) {
            .footer-grid .col-lg-4,
            .footer-grid .col-lg-2,
            .footer-grid .col-lg-3 {
                flex: 0 0 100%;
                max-width: 100%;
            }
            .footer-bottom {
                padding: 20px 0;
            }
            .cta-actions {
                flex-direction: column;
                width: 100%;
            }
            .btn-accent,
            .btn-outline-mild {
                width: 100%;
            }
            .page-hero h1 {
                font-size: 1.4rem;
            }
            .info-panel {
                padding: 20px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            * {
                transition: none !important;
            }
            html {
                scroll-behavior: auto;
            }
        }