/* roulang page: index */
:root {
            --bg-deep: #070D1A;
            --bg-panel: #0B1626;
            --primary-blue: #2B7FFF;
            --accent-cyan: #00D4FF;
            --flame-orange: #FF5E3A;
            --deep-fire: #D9431F;
            --glass-bg: rgba(255, 255, 255, 0.06);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-hover: rgba(0, 212, 255, 0.45);
            --text-main: #F1F5F9;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 90px;
        }

        body {
            font-family: 'system-ui', '-apple-system', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background-color: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.7;
            overflow-x: hidden;
        }

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

        a {
            text-decoration: none;
            color: inherit;
        }

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

        .container-custom {
            max-width: 80rem;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        .bg-grid {
            background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 44px 44px;
        }

        .glass-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: 1.25rem;
            transition: all 0.3s ease;
        }

        .glass-card:hover {
            border-color: var(--glass-hover);
            box-shadow: 0 0 0 1px rgba(0, 212, 255, 0.4), 0 8px 40px rgba(0, 0, 0, 0.5);
            transform: translateY(-2px);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #FF5E3A, #FF9966);
            color: #fff;
            font-weight: 700;
            border-radius: 12px;
            padding: 0.75rem 1.75rem;
            font-size: 1rem;
            transition: all 0.25s ease;
            box-shadow: 0 0 20px rgba(255, 94, 58, 0.5);
            border: none;
        }

        .btn-primary:hover {
            box-shadow: 0 0 30px rgba(255, 94, 58, 0.7);
            filter: brightness(1.08);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 0 12px rgba(255, 94, 58, 0.4);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.04);
            color: var(--text-main);
            font-weight: 600;
            border-radius: 12px;
            padding: 0.75rem 1.75rem;
            font-size: 1rem;
            border: 1px solid rgba(0, 212, 255, 0.4);
            transition: all 0.25s ease;
        }

        .btn-secondary:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 18px rgba(0, 212, 255, 0.3);
            color: var(--accent-cyan);
        }

        .btn-secondary:active {
            opacity: 0.8;
        }

        .nav-pill {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 999px;
            padding: 0.45rem 1.25rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-main);
            transition: all 0.25s ease;
        }

        .nav-pill:hover {
            border-color: rgba(0, 212, 255, 0.6);
            color: var(--accent-cyan);
            box-shadow: 0 0 12px rgba(0, 212, 255, 0.2);
        }

        .nav-pill.active {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.08);
        }

        .eyebrow {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.08);
            border: 1px solid rgba(0, 212, 255, 0.2);
            border-radius: 999px;
            padding: 0.35rem 1rem;
            margin-bottom: 1rem;
        }

        .section-padding {
            padding-top: 5rem;
            padding-bottom: 5rem;
        }

        .stat-number {
            font-size: clamp(2rem, 4vw, 3.25rem);
            font-weight: 900;
            line-height: 1.15;
            color: var(--text-main);
            text-shadow: 0 0 24px rgba(0, 212, 255, 0.35);
            font-family: 'Courier New', monospace;
        }

        .content-main h2 {
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-main);
            margin-bottom: 1rem;
        }

        .content-main p {
            margin-bottom: 1.5rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .content-main ul,
        .content-main ol {
            margin-bottom: 1.5rem;
            padding-left: 1.5rem;
            color: var(--text-secondary);
        }

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

        .content-main blockquote {
            border-left: 4px solid var(--accent-cyan);
            padding: 1rem 1.5rem;
            background: rgba(0, 212, 255, 0.04);
            border-radius: 0 1rem 1rem 0;
            margin: 2rem 0;
            color: var(--text-main);
            font-style: normal;
        }

        .content-main code {
            background: rgba(255, 255, 255, 0.08);
            padding: 0.2rem 0.5rem;
            border-radius: 6px;
            font-family: 'Courier New', monospace;
            font-size: 0.875rem;
        }

        .content-main pre {
            background: #0d1220;
            padding: 1.5rem;
            border-radius: 1rem;
            overflow-x: auto;
            margin-bottom: 1.5rem;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .content-main h3 {
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--text-main);
        }

        .content-main img {
            border-radius: 1rem;
            margin: 1.5rem 0;
        }

        .news-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: 1.25rem;
            overflow: hidden;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .news-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 212, 255, 0.45);
            box-shadow: 0 0 0 1px rgba(0, 212, 255, 0.3), 0 12px 32px rgba(0, 0, 0, 0.45);
        }

        .news-card .thumb {
            width: 100%;
            height: 12rem;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .news-card:hover .thumb {
            transform: scale(1.03);
        }

        .news-title {
            font-size: 1.05rem;
            font-weight: 700;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            color: var(--text-main);
            transition: color 0.2s;
        }

        .news-title:hover {
            color: var(--accent-cyan);
        }

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

        .badge {
            display: inline-flex;
            align-items: center;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.25rem 0.75rem;
            border-radius: 999px;
            background: linear-gradient(135deg, rgba(255, 94, 58, 0.2), rgba(255, 94, 58, 0.1));
            color: #ff8a66;
            border: 1px solid rgba(255, 94, 58, 0.3);
        }

        /* FAQ accordion */
        .faq-item {
            border: 1px solid var(--glass-border);
            background: var(--glass-bg);
            border-radius: 1rem;
            margin-bottom: 1rem;
            overflow: hidden;
            transition: border-color 0.3s;
        }

        .faq-item.open {
            border-color: rgba(0, 212, 255, 0.4);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 1.25rem 1.5rem;
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-main);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            transition: background 0.2s;
        }

        .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        .faq-icon {
            width: 24px;
            height: 24px;
            position: relative;
            flex-shrink: 0;
        }

        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--accent-cyan);
            border-radius: 2px;
            transition: all 0.25s ease;
        }

        .faq-icon::before {
            width: 12px;
            height: 2px;
            top: 11px;
            left: 6px;
        }

        .faq-icon::after {
            width: 2px;
            height: 12px;
            top: 6px;
            left: 11px;
        }

        .faq-item.open .faq-icon::after {
            transform: scaleY(0);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            padding: 0 1.5rem;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding-bottom: 1.25rem;
        }

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

        /* Floating CTA */
        .floating-cta-desktop {
            position: fixed;
            right: 1.5rem;
            bottom: 2rem;
            z-index: 60;
            display: none;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #FF5E3A, #FF9966);
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 0.75rem 1.5rem;
            border-radius: 999px;
            box-shadow: 0 0 24px rgba(255, 94, 58, 0.5);
            transition: all 0.3s;
        }

        .floating-cta-desktop:hover {
            box-shadow: 0 0 36px rgba(255, 94, 58, 0.7);
            transform: translateY(-2px);
        }

        .floating-cta-mobile {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 60;
            background: rgba(7, 13, 26, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 0.75rem 1rem;
            display: none;
        }

        @media (min-width: 768px) {
            .floating-cta-desktop {
                display: inline-flex;
            }
            .floating-cta-mobile {
                display: none;
            }
        }

        @media (max-width: 767px) {
            .floating-cta-mobile {
                display: block;
            }
            body {
                padding-bottom: 4.5rem;
            }
        }

        /* Mobile nav */
        @media (max-width: 1023px) {
            .nav-links {
                display: none;
            }
            .nav-links.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(7, 13, 26, 0.95);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                border-bottom: 1px solid var(--glass-border);
                padding: 1.5rem 2rem;
                gap: 1rem;
                z-index: 40;
            }
            .mobile-menu-btn {
                display: flex;
                flex-direction: column;
                justify-content: center;
                gap: 5px;
                width: 40px;
                height: 40px;
                align-items: center;
            }
            .mobile-menu-btn span {
                display: block;
                width: 20px;
                height: 2px;
                background: var(--text-main);
                border-radius: 2px;
                transition: all 0.3s;
            }
            .mobile-menu-btn.open span:nth-child(1) {
                transform: translateY(7px) rotate(45deg);
            }
            .mobile-menu-btn.open span:nth-child(2) {
                opacity: 0;
            }
            .mobile-menu-btn.open span:nth-child(3) {
                transform: translateY(-7px) rotate(-45deg);
            }
        }

        @media (min-width: 1024px) {
            .nav-links {
                display: flex;
                align-items: center;
                gap: 1.5rem;
            }
            .mobile-menu-btn {
                display: none;
            }
        }

        *:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

        /* Utility extras */
        .text-gradient-blue {
            background: linear-gradient(135deg, #2B7FFF, #00D4FF);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .text-gradient-flame {
            background: linear-gradient(135deg, #FF5E3A, #FF9966);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .glow-blue {
            text-shadow: 0 0 24px rgba(0, 212, 255, 0.3);
        }

        .shadow-card {
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
        }

        .hover-up {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .hover-up:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.4);
        }

/* roulang page: article */
:root {
            --bg-primary: #070D1A;
            --bg-secondary: #0B1626;
            --electric-blue: #2B7FFF;
            --cyan-glow: #00D4FF;
            --flame-orange: #FF5E3A;
            --deep-fire: #D9431F;
            --text-primary: #F1F5F9;
            --text-secondary: #94A3B8;
            --text-weak: #64748B;
            --glass-bg: rgba(255, 255, 255, 0.06);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-hover: rgba(0, 212, 255, 0.45);
            --radius-btn: 12px;
            --radius-card: 16px;
            --radius-lg: 24px;
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
            --glow-orange: 0 0 20px rgba(255, 94, 58, 0.5);
            --glow-cyan: 0 0 24px rgba(0, 212, 255, 0.4);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image:
                linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px);
            background-size: 44px 44px;
            pointer-events: none;
            z-index: 0;
        }

        .container-custom {
            max-width: 80rem;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        @media (min-width: 640px) {
            .container-custom {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }

        .nav-pill {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 1.1rem;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.16);
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-primary);
            transition: all 0.25s ease;
            text-decoration: none;
        }

        .nav-pill:hover {
            border-color: rgba(0, 212, 255, 0.6);
            box-shadow: 0 0 14px rgba(0, 212, 255, 0.2);
            color: var(--cyan-glow);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.75rem 1.6rem;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, #FF5E3A, #FF9966);
            color: #fff;
            font-weight: 700;
            font-size: 0.9375rem;
            box-shadow: 0 0 20px rgba(255, 94, 58, 0.35);
            transition: all 0.25s ease;
            border: none;
            cursor: pointer;
            text-decoration: none;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(255, 94, 58, 0.6), 0 4px 16px rgba(255, 94, 58, 0.3);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 16px rgba(255, 94, 58, 0.4);
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.7rem 1.5rem;
            border-radius: var(--radius-btn);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 0.9375rem;
            transition: all 0.25s ease;
            cursor: pointer;
            text-decoration: none;
        }

        .btn-ghost:hover {
            border-color: var(--cyan-glow);
            box-shadow: 0 0 16px rgba(0, 212, 255, 0.25);
            color: var(--cyan-glow);
        }

        .mobile-menu-btn {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 10px;
            background: transparent;
            border: none;
            cursor: pointer;
            z-index: 60;
        }

        .mobile-menu-btn span {
            width: 22px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all 0.3s ease;
            display: block;
        }

        .mobile-menu-btn.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .mobile-menu-btn.open span:nth-child(2) {
            opacity: 0;
        }

        .mobile-menu-btn.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        @media (max-width: 1023px) {
            .nav-links {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: flex-start;
                background: rgba(7, 13, 26, 0.97);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                padding: 1.5rem 1.5rem 2rem;
                gap: 1rem;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                display: none;
                z-index: 55;
            }

            .nav-links.open {
                display: flex;
            }

            .mobile-menu-btn {
                display: flex;
            }

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

        .glass-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            transition: all 0.3s ease;
        }

        .glass-card:hover {
            border-color: rgba(0, 212, 255, 0.35);
            box-shadow: 0 0 0 1px rgba(0, 212, 255, 0.2), 0 8px 40px rgba(0, 0, 0, 0.5);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.3rem 0.85rem;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            background: rgba(255, 94, 58, 0.14);
            color: #FF9966;
            border: 1px solid rgba(255, 94, 58, 0.3);
        }

        .badge-cyan {
            background: rgba(0, 212, 255, 0.1);
            color: var(--cyan-glow);
            border-color: rgba(0, 212, 255, 0.25);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.55rem;
            font-size: 0.875rem;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color 0.2s ease;
            text-decoration: none;
        }

        .breadcrumb a:hover {
            color: var(--cyan-glow);
        }

        .breadcrumb .sep {
            color: var(--text-weak);
            opacity: 0.6;
        }

        .breadcrumb .cur {
            color: var(--text-primary);
            font-weight: 500;
            max-width: 320px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .article-content {
            max-width: 42rem;
            margin: 0 auto;
            font-size: 1.0625rem;
            line-height: 1.85;
            color: #E2E8F0;
        }

        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin: 2.25rem 0 1rem;
            color: var(--text-primary);
            line-height: 1.35;
        }

        .article-content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin: 1.75rem 0 0.75rem;
            color: var(--text-primary);
            line-height: 1.4;
        }

        .article-content h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin: 1.5rem 0 0.6rem;
            color: var(--text-primary);
        }

        .article-content p {
            margin-bottom: 1.5rem;
            letter-spacing: 0.01em;
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 1.5rem 1.5rem;
        }

        .article-content li {
            margin-bottom: 0.45rem;
        }

        .article-content ul li {
            list-style: disc;
        }

        .article-content ol li {
            list-style: decimal;
        }

        .article-content blockquote {
            border-left: 4px solid var(--cyan-glow);
            background: rgba(0, 212, 255, 0.05);
            padding: 1rem 1.5rem;
            margin: 1.75rem 0;
            border-radius: 0 14px 14px 0;
            color: var(--text-secondary);
            font-style: normal;
        }

        .article-content blockquote p {
            margin-bottom: 0.25rem;
        }

        .article-content blockquote cite {
            display: block;
            margin-top: 0.5rem;
            font-size: 0.875rem;
            color: var(--text-weak);
            font-style: normal;
        }

        .article-content img {
            border-radius: var(--radius-card);
            max-width: 100%;
            height: auto;
            margin: 1.75rem 0;
            box-shadow: var(--shadow-card);
        }

        .article-content a {
            color: var(--cyan-glow);
            text-decoration: none;
            border-bottom: 1px solid rgba(0, 212, 255, 0.3);
            transition: all 0.2s ease;
        }

        .article-content a:hover {
            color: #fff;
            border-bottom-color: var(--cyan-glow);
        }

        .article-content pre {
            background: rgba(0, 0, 0, 0.45);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 14px;
            padding: 1.25rem 1.5rem;
            overflow-x: auto;
            margin: 1.75rem 0;
            font-size: 0.875rem;
            line-height: 1.7;
            font-family: Consolas, 'Courier New', monospace;
            color: #CBD5E1;
        }

        .article-content code {
            font-family: Consolas, 'Courier New', monospace;
            background: rgba(0, 212, 255, 0.08);
            padding: 0.15em 0.45em;
            border-radius: 5px;
            font-size: 0.88em;
            color: var(--cyan-glow);
        }

        .article-content pre code {
            background: none;
            padding: 0;
            color: inherit;
            font-size: 0.875rem;
        }

        .article-content hr {
            border: none;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin: 2.5rem 0;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.75rem 0;
            font-size: 0.9375rem;
        }

        .article-content table th {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-primary);
            font-weight: 600;
            padding: 0.75rem 1rem;
            text-align: left;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .article-content table td {
            padding: 0.75rem 1rem;
            border: 1px solid rgba(255, 255, 255, 0.08);
            color: var(--text-secondary);
        }

        .related-card {
            display: flex;
            align-items: flex-start;
            gap: 1.25rem;
            padding: 1.5rem;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 14px;
            transition: all 0.3s ease;
            text-decoration: none;
        }

        .related-card:hover {
            border-color: rgba(0, 212, 255, 0.4);
            transform: translateY(-3px);
            box-shadow: 0 8px 36px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(0, 212, 255, 0.15);
        }

        .related-card .icon-wrap {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .related-card h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.35rem;
            line-height: 1.4;
        }

        .related-card p {
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .cta-section {
            background: linear-gradient(135deg, rgba(43, 127, 255, 0.12), rgba(255, 94, 58, 0.1));
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
        }

        .focus-visible\:outline-cyan:focus-visible,
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid rgba(0, 212, 255, 0.7);
            outline-offset: 2px;
        }

        .floating-cta-desktop {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            z-index: 80;
        }

        .floating-cta-mobile {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 80;
            background: rgba(7, 13, 26, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 0.75rem 1rem 1rem;
            display: none;
        }

        @media (max-width: 767px) {
            .floating-cta-desktop {
                display: none;
            }

            .floating-cta-mobile {
                display: block;
            }

            body {
                padding-bottom: 76px;
            }
        }

        @media (max-width: 520px) {
            .breadcrumb .cur {
                max-width: 200px;
            }
        }

/* roulang page: category1 */
:root {
            --bg: #070D1A;
            --bg-light: #0B1626;
            --primary: #2B7FFF;
            --neon: #00D4FF;
            --flame: #FF5E3A;
            --flame-deep: #D9431F;
            --text-main: #F1F5F9;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --glass-bg: rgba(255, 255, 255, 0.06);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-border-hover: rgba(0, 212, 255, 0.45);
            --radius-card: 16px;
            --radius-btn: 12px;
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-flame: 0 0 20px rgba(255, 94, 58, 0.5);
            --shadow-neon: 0 0 24px rgba(0, 212, 255, 0.4);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background: var(--bg);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        img,
        svg,
        video {
            display: block;
            max-width: 100%;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

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

        .container-custom {
            width: 100%;
            max-width: 80rem;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        @media (min-width: 640px) {
            .container-custom {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        .section-padding {
            padding-top: 5rem;
            padding-bottom: 5rem;
        }

        @media (min-width: 768px) {
            .section-padding {
                padding-top: 7rem;
                padding-bottom: 7rem;
            }
        }

        @media (min-width: 1024px) {
            .section-padding {
                padding-top: 8rem;
                padding-bottom: 8rem;
            }
        }

        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--neon);
            outline-offset: 2px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #FF5E3A, #FF9966);
            color: #fff;
            font-weight: 700;
            padding: 0.75rem 1.5rem;
            border-radius: 12px;
            box-shadow: 0 0 20px rgba(255, 94, 58, 0.5);
            transition: all 0.2s ease;
            white-space: nowrap;
            cursor: pointer;
        }

        .btn-primary:hover {
            box-shadow: 0 0 28px rgba(255, 94, 58, 0.7);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 12px rgba(255, 94, 58, 0.4);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: var(--text-main);
            font-weight: 600;
            padding: 0.75rem 1.5rem;
            border-radius: 12px;
            transition: all 0.2s ease;
            white-space: nowrap;
            cursor: pointer;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .btn-secondary:hover {
            border-color: rgba(0, 212, 255, 0.6);
            box-shadow: 0 0 16px rgba(0, 212, 255, 0.2);
            color: #fff;
        }

        .btn-secondary:active {
            opacity: 0.8;
        }

        .glass-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 16px;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
            transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
        }

        .glass-card:hover {
            border-color: rgba(0, 212, 255, 0.45);
            box-shadow: 0 0 24px rgba(0, 212, 255, 0.2), 0 8px 40px rgba(0, 0, 0, 0.5);
        }

        .hover-lift {
            transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
        }

        .hover-lift:hover {
            transform: translateY(-2px);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
        }

        .nav-pill {
            padding: 0.5rem 1.25rem;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-secondary);
            font-size: 0.875rem;
            font-weight: 600;
            transition: all 0.2s ease;
            white-space: nowrap;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .nav-pill:hover {
            border-color: rgba(0, 212, 255, 0.45);
            color: var(--neon);
            box-shadow: 0 0 16px rgba(0, 212, 255, 0.15);
        }

        .nav-pill.active {
            border-color: rgba(0, 212, 255, 0.6);
            color: #fff;
            background: rgba(0, 212, 255, 0.1);
            box-shadow: 0 0 16px rgba(0, 212, 255, 0.15);
        }

        .mobile-menu-btn {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 6px;
            width: 40px;
            height: 40px;
            padding: 8px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 10px;
            cursor: pointer;
            transition: border-color 0.2s ease;
        }

        .mobile-menu-btn:hover {
            border-color: rgba(0, 212, 255, 0.45);
        }

        .mobile-menu-btn span {
            display: block;
            height: 2px;
            width: 100%;
            background: #F1F5F9;
            border-radius: 2px;
            transition: transform 0.25s ease, opacity 0.25s ease;
        }

        .mobile-menu-btn.open span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }

        .mobile-menu-btn.open span:nth-child(2) {
            opacity: 0;
        }

        .mobile-menu-btn.open span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        @media (max-width: 1023px) {
            .nav-links {
                display: none;
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(7, 13, 26, 0.97);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                align-items: stretch;
                padding: 1.5rem;
                gap: 0.85rem;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
                z-index: 50;
            }

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

            .nav-pill {
                text-align: center;
            }

            .mobile-menu-btn {
                display: flex;
            }
        }

        .hero-bg {
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        .hero-overlay {
            background: linear-gradient(180deg, rgba(7, 13, 26, 0.55) 0%, rgba(7, 13, 26, 0.85) 100%);
        }

        .grid-pattern {
            background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 60px 60px;
        }

        .text-gradient {
            background: linear-gradient(90deg, #00D4FF, #FF5E3A);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

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

        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.5rem;
            color: #CBD5E1;
            line-height: 1.6;
        }

        .feature-list li::before {
            content: '✓';
            color: var(--neon);
            font-weight: 700;
            flex-shrink: 0;
        }

        .stat-num {
            font-size: clamp(2rem, 4vw, 2.5rem);
            font-weight: 900;
            color: #fff;
            line-height: 1.2;
            text-shadow: 0 0 20px rgba(0, 212, 255, 0.4);
        }

        .stat-label {
            color: var(--text-secondary);
            font-size: 0.875rem;
            margin-top: 0.5rem;
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 16px;
            overflow: hidden;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .faq-item.open {
            border-color: rgba(0, 212, 255, 0.45);
            box-shadow: 0 0 24px rgba(0, 212, 255, 0.1);
        }

        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            padding: 1.25rem 1.5rem;
            background: transparent;
            border: none;
            color: var(--text-main);
            font-size: 1rem;
            font-weight: 700;
            text-align: left;
            cursor: pointer;
            transition: color 0.2s ease;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            opacity: 0;
            transition: max-height 0.25s ease, opacity 0.25s ease;
        }

        .faq-item.open .faq-answer {
            opacity: 1;
        }

        .faq-answer p {
            padding: 0 1.5rem 1.25rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .faq-icon {
            flex-shrink: 0;
            font-size: 1.5rem;
            font-weight: 400;
            color: var(--neon);
            width: 24px;
            text-align: center;
        }

        blockquote {
            margin: 0;
            padding: 0;
        }

        .form-input {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 12px;
            padding: 12px 16px;
            color: var(--text-main);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .form-input:focus {
            outline: none;
            border-color: rgba(0, 212, 255, 0.7);
            box-shadow: 0 0 16px rgba(0, 212, 255, 0.15);
        }

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

        .cta-bg {
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        .cta-overlay {
            background: linear-gradient(180deg, rgba(7, 13, 26, 0.82), rgba(11, 22, 38, 0.9));
        }

        .solutions-bg {
            background: linear-gradient(180deg, transparent 0%, rgba(11, 22, 38, 0.45) 50%, transparent 100%);
        }

        .footer-link {
            transition: color 0.2s ease;
        }

        .footer-link:hover {
            color: var(--neon);
        }

        @media (max-width: 520px) {
            .container-custom {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .section-padding {
                padding-top: 4rem;
                padding-bottom: 4rem;
            }

            .btn-primary,
            .btn-secondary {
                width: 100%;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #070D1A;
            --bg-secondary: #0B1626;
            --brand-blue: #2B7FFF;
            --brand-cyan: #00D4FF;
            --brand-orange: #FF5E3A;
            --brand-orange-light: #FF9966;
            --text-primary: #F1F5F9;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --glass-bg: rgba(255, 255, 255, 0.06);
            --glass-border: rgba(255, 255, 255, 0.12);
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
            --container: 80rem;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            scroll-padding-top: 90px;
        }
        body {
            font-family: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        a:hover {
            color: inherit;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid rgba(0, 212, 255, 0.8);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .container-custom {
            max-width: var(--container);
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }
        @media (min-width: 640px) {
            .container-custom {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }
        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.1rem;
        }
        .nav-pill {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            font-size: 14px;
            font-weight: 500;
            color: #F1F5F9;
            transition: all .3s ease;
            white-space: nowrap;
        }
        .nav-pill:hover {
            border-color: rgba(0, 212, 255, 0.6);
            background: rgba(0, 212, 255, 0.1);
            box-shadow: 0 0 14px rgba(0, 212, 255, 0.2);
            color: #fff;
        }
        .nav-pill.active {
            border-color: rgba(255, 94, 58, 0.6);
            background: rgba(255, 94, 58, 0.14);
            color: #fff;
            box-shadow: 0 0 16px rgba(255, 94, 58, 0.28);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 12px;
            background: linear-gradient(135deg, #FF5E3A, #FF9966);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            border: 0;
            cursor: pointer;
            box-shadow: 0 0 20px rgba(255, 94, 58, 0.5);
            transition: all .3s ease;
            line-height: 1.4;
        }
        .btn-primary:hover {
            filter: brightness(1.1);
            box-shadow: 0 0 28px rgba(255, 94, 58, 0.7);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0) scale(0.98);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 12px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #F1F5F9;
            font-weight: 500;
            font-size: 15px;
            cursor: pointer;
            transition: all .3s ease;
            line-height: 1.4;
        }
        .btn-secondary:hover {
            border-color: rgba(0, 212, 255, 0.7);
            color: #00D4FF;
            box-shadow: 0 0 16px rgba(0, 212, 255, 0.2);
        }
        .btn-secondary:active {
            opacity: .8;
        }
        .mobile-menu-btn {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: 0;
            padding: 10px;
            cursor: pointer;
            z-index: 120;
        }
        .mobile-menu-btn span {
            display: block;
            width: 22px;
            height: 2px;
            background: #F1F5F9;
            border-radius: 2px;
            transition: all .3s ease;
        }
        .mobile-menu-btn.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .mobile-menu-btn.open span:nth-child(2) {
            opacity: 0;
        }
        .mobile-menu-btn.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        @media (max-width: 1023px) {
            .nav-links {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                padding: 1.2rem 1.5rem 1.8rem;
                background: rgba(7, 13, 26, 0.97);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
                transform: translateY(-130%);
                transition: transform .3s ease;
                z-index: 110;
                gap: 0.9rem;
            }
            .nav-links.open {
                transform: translateY(0);
            }
            .nav-links a {
                width: 100%;
                text-align: center;
                justify-content: center;
            }
            .mobile-menu-btn {
                display: flex;
            }
        }
        .grid-bg {
            background-image: linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
            background-size: 40px 40px;
        }
        .glass-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 20px;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: all .3s ease;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
        }
        .glass-card:hover {
            border-color: rgba(0, 212, 255, 0.45);
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 212, 255, 0.1);
            transform: translateY(-2px);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            color: #00D4FF;
            background: rgba(0, 212, 255, 0.1);
            border: 1px solid rgba(0, 212, 255, 0.3);
            letter-spacing: 0.02em;
            line-height: 1.5;
        }
        .text-glow-orange {
            color: #FF9966;
            text-shadow: 0 0 30px rgba(255, 94, 58, 0.55);
        }
        .text-glow-cyan {
            color: #00D4FF;
            text-shadow: 0 0 30px rgba(0, 212, 255, 0.55);
        }
        .sidebar-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 20px;
            padding: 26px;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
        }
        .sticky-sidebar {
            position: sticky;
            top: 100px;
        }
        .faq-item {
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 16px;
            background: rgba(255, 255, 255, 0.04);
            overflow: hidden;
            transition: border-color .3s, box-shadow .3s;
        }
        .faq-item.open {
            border-color: rgba(0, 212, 255, 0.4);
            box-shadow: 0 0 24px rgba(0, 212, 255, 0.08);
        }
        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 22px;
            background: transparent;
            border: 0;
            color: #F1F5F9;
            font-size: 1rem;
            font-weight: 600;
            text-align: left;
            cursor: pointer;
            gap: 12px;
            transition: color .2s;
        }
        .faq-question:hover {
            color: #00D4FF;
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.08);
            transition: all .3s ease;
            font-size: 18px;
            font-weight: 300;
            line-height: 1;
        }
        .faq-item.open .faq-icon {
            background: rgba(255, 94, 58, 0.2);
            color: #FF9966;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .28s ease, padding .28s ease, opacity .28s ease;
            opacity: 0;
            padding: 0 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            opacity: 1;
            padding-bottom: 20px;
        }
        .faq-answer p {
            color: #94A3B8;
            font-size: 15px;
            line-height: 1.8;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 14px;
        }
        .stat-number {
            font-size: clamp(2rem, 3vw, 2.6rem);
            font-weight: 900;
            line-height: 1.1;
            color: #F1F5F9;
            text-shadow: 0 0 24px rgba(0, 212, 255, 0.3);
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: #00D4FF;
            margin-bottom: 12px;
        }
        .content-img-shadow {
            box-shadow: 0 16px 50px rgba(0, 0, 0, 0.5);
        }
        .banner-overlay {
            background: linear-gradient(180deg, rgba(7, 13, 26, 0.82) 0%, rgba(7, 13, 26, 0.65) 50%, #070D1A 100%);
        }
        @media (max-width: 639px) {
            .btn-primary,
            .btn-secondary {
                width: 100%;
            }
        }