/* roulang page: index */
:root {
            --c-primary: #0A1929;
            --c-secondary: #0E7A6E;
            --c-accent: #F59E0B;
            --c-light: #E6F4F1;
            --c-bg: #F8FAFC;
            --c-text: #1E293B;
            --c-muted: #64748B;
            --c-border: #E2E8F0;
            --radius: 16px;
            --shadow-sm: 0 1px 3px rgba(10, 25, 41, 0.06);
            --shadow-md: 0 10px 40px rgba(10, 25, 41, 0.08);
            --shadow-lg: 0 20px 60px rgba(10, 25, 41, 0.14);
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: var(--c-bg);
            color: var(--c-text);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            line-height: 1.6;
        }
        img {
            max-width: 100%;
            height: auto;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        .container-site {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-padding {
            padding: 80px 0;
        }
        .nav-panel {
            background: rgba(255, 255, 255, 0.86);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.7);
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 18px;
            border-radius: 12px;
            font-size: 14px;
            font-weight: 500;
            color: #475569;
            transition: all 0.25s ease;
            border: 1px solid transparent;
        }
        .nav-link:hover {
            background: #ffffff;
            color: var(--c-primary);
            border-color: #E2E8F0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transform: translateY(-1px);
        }
        .nav-link.active {
            background: var(--c-primary);
            color: #ffffff;
            border-color: transparent;
            box-shadow: 0 6px 18px rgba(10, 25, 41, 0.2);
        }
        .nav-panel-inner {
            background: rgba(248, 250, 252, 0.8);
            border: 1px solid rgba(226, 232, 240, 0.7);
            border-radius: 16px;
            padding: 6px;
        }
        .mobile-nav-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 13px 16px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 500;
            color: #334155;
            transition: all 0.2s;
        }
        .mobile-nav-link:hover {
            background: var(--c-light);
            color: var(--c-primary);
        }
        .mobile-nav-link.active {
            background: var(--c-primary);
            color: #fff;
        }
        .btn-main {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--c-secondary);
            color: #fff;
            padding: 13px 28px;
            border-radius: 14px;
            font-size: 15px;
            font-weight: 600;
            border: 1px solid transparent;
            box-shadow: 0 8px 24px rgba(14, 122, 110, 0.25);
            transition: all 0.3s ease;
            cursor: pointer;
        }
        .btn-main:hover {
            background: var(--c-primary);
            transform: translateY(-2px);
            box-shadow: 0 14px 32px rgba(10, 25, 41, 0.25);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: #fff;
            padding: 13px 28px;
            border-radius: 14px;
            font-size: 15px;
            font-weight: 600;
            border: 1.5px solid rgba(255, 255, 255, 0.35);
            transition: all 0.3s ease;
            cursor: pointer;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.6);
            transform: translateY(-2px);
        }
        .btn-dark {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--c-primary);
            color: #fff;
            padding: 12px 24px;
            border-radius: 12px;
            font-size: 14px;
            font-weight: 600;
            border: 1px solid transparent;
            transition: all 0.3s;
            cursor: pointer;
        }
        .btn-dark:hover {
            background: var(--c-secondary);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(14, 122, 110, 0.25);
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--c-light);
            color: var(--c-secondary);
            border: 1px solid rgba(14, 122, 110, 0.15);
            border-radius: 999px;
            padding: 7px 18px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.04em;
        }
        .section-title {
            font-size: 32px;
            line-height: 1.25;
            font-weight: 800;
            color: var(--c-primary);
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            color: var(--c-muted);
            font-size: 16px;
            margin-top: 12px;
            line-height: 1.7;
        }
        .feature-card {
            background: #fff;
            border: 1px solid var(--c-border);
            border-radius: var(--radius);
            padding: 32px;
            transition: all 0.3s ease;
            height: 100%;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
            border-color: rgba(14, 122, 110, 0.25);
        }
        .feature-icon {
            width: 58px;
            height: 58px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            background: var(--c-light);
            color: var(--c-secondary);
            margin-bottom: 22px;
        }
        .stat-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 20px;
            padding: 30px 20px;
            text-align: center;
            backdrop-filter: blur(6px);
            transition: all 0.3s ease;
        }
        .stat-card:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
            border-color: rgba(255, 255, 255, 0.2);
        }
        .stat-number {
            font-size: 42px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            letter-spacing: -0.02em;
        }
        .stat-label {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            margin-top: 6px;
            font-weight: 500;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--c-border);
            border-radius: 16px;
            padding: 0;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .faq-item:hover {
            border-color: rgba(14, 122, 110, 0.25);
            box-shadow: var(--shadow-sm);
        }
        .faq-item.active {
            border-color: rgba(14, 122, 110, 0.4);
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 24px;
            background: transparent;
            border: none;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--c-primary);
            text-align: left;
            transition: all 0.2s;
        }
        .faq-question:hover {
            color: var(--c-secondary);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 10px;
            background: var(--c-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--c-secondary);
            transition: all 0.3s;
        }
        .faq-item.active .faq-icon {
            background: var(--c-secondary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 22px;
        }
        .footer-link {
            color: #94A3B8;
            font-size: 14px;
            transition: color 0.2s;
        }
        .footer-link:hover {
            color: #fff;
        }
        .copyright-line {
            color: #64748B;
            font-size: 13px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            margin-top: 48px;
        }
        .article-card {
            background: #fff;
            border: 1px solid var(--c-border);
            border-radius: 18px;
            padding: 26px;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            gap: 12px;
            height: 100%;
        }
        .article-card:hover {
            border-color: rgba(14, 122, 110, 0.3);
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
        }
        .article-cat {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--c-light);
            color: var(--c-secondary);
            border-radius: 999px;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
        }
        .article-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--c-primary);
            line-height: 1.45;
            transition: color 0.2s;
        }
        .article-card:hover .article-title {
            color: var(--c-secondary);
        }
        .article-summary {
            color: var(--c-muted);
            font-size: 14px;
            line-height: 1.65;
            flex: 1;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #94A3B8;
            font-size: 13px;
        }
        .category-card {
            background: #fff;
            border: 1px solid var(--c-border);
            border-radius: 22px;
            overflow: hidden;
            transition: all 0.3s;
            display: block;
            height: 100%;
        }
        .category-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
            border-color: rgba(14, 122, 110, 0.2);
        }
        .category-card img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .category-card:hover img {
            transform: scale(1.04);
        }
        .step-line {
            position: absolute;
            top: 40px;
            left: calc(50% + 60px);
            width: calc(100% - 120px);
            height: 2px;
            border-top: 2px dashed rgba(14, 122, 110, 0.3);
            display: none;
        }
        @media (min-width: 768px) {
            .step-line {
                display: block;
            }
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 56px 0;
            }
            .section-title {
                font-size: 26px;
            }
        }
        @media (max-width: 520px) {
            .container-site {
                padding: 0 16px;
            }
            .stat-number {
                font-size: 30px;
            }
            .section-padding {
                padding: 44px 0;
            }
        }

/* roulang page: category1 */
:root {
            --brand: #0f766e;
            --brand-dark: #0f172a;
            --brand-accent: #14b8a6;
            --bg-light: #f8fafc;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
        }
        * {
            box-sizing: border-box;
        }
        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            line-height: 1.6;
            color: var(--text-main);
            background: #fff;
            -webkit-font-smoothing: antialiased;
        }
        .container-site {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .nav-panel {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow 0.3s;
        }
        .nav-panel.scrolled {
            box-shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
        }
        .nav-panel-inner {
            background: var(--bg-light);
            border-radius: 999px;
            padding: 6px;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: #475569;
            transition: all 0.2s;
        }
        .nav-link:hover {
            background: #fff;
            color: var(--brand);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
        }
        .nav-link.active {
            background: var(--brand);
            color: #fff;
            box-shadow: 0 2px 12px rgba(15, 118, 110, 0.3);
        }
        .footer-link {
            color: #94a3b8;
            transition: all 0.2s;
        }
        .footer-link:hover {
            color: #fff;
        }
        .card-hover {
            transition: all 0.3s;
        }
        .card-hover:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 40px rgba(15, 23, 42, 0.1);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand);
            color: #fff;
            padding: 12px 28px;
            border-radius: 12px;
            font-weight: 600;
            transition: all 0.3s;
        }
        .btn-primary:hover {
            background: #0d5c56;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(15, 118, 110, 0.3);
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 20px 24px;
            transition: all 0.2s;
            cursor: pointer;
        }
        .faq-item:hover {
            border-color: var(--brand-accent);
            box-shadow: 0 4px 16px rgba(20, 184, 166, 0.1);
        }
        .faq-answer {
            display: none;
            padding-top: 12px;
            border-top: 1px solid var(--border);
            margin-top: 12px;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--brand);
        }
        .faq-icon {
            transition: transform 0.3s;
        }
        .image-mask img {
            transition: all 0.5s;
        }
        .image-mask:hover img {
            transform: scale(1.05);
        }
        @media (max-width: 1024px) {
            .nav-panel-inner {
                border-radius: 16px;
                padding: 4px;
                flex-wrap: wrap;
            }
            .nav-link {
                padding: 8px 14px;
                font-size: 13px;
            }
        }
        @media (max-width: 640px) {
            .nav-panel-inner {
                flex-direction: column;
                align-items: stretch;
                border-radius: 12px;
            }
            .nav-link {
                justify-content: center;
            }
        }
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--brand-accent);
            outline-offset: 2px;
        }
        .section-pad {
            padding-top: 72px;
            padding-bottom: 72px;
        }
        @media (max-width: 768px) {
            .section-pad {
                padding-top: 48px;
                padding-bottom: 48px;
            }
        }

/* roulang page: article */
:root {
            --color-brand-dark: #071422;
            --color-brand: #0B1B2B;
            --color-brand-light: #123246;
            --color-accent: #2DD4BF;
            --color-accent-dark: #0FAE96;
            --color-bg: #F4F7FA;
            --color-surface: #FFFFFF;
            --color-text: #16233A;
            --color-text-muted: #5B6B82;
            --color-border: #E2E8F0;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-sm: 0 2px 10px rgba(2, 12, 27, 0.06);
            --shadow-md: 0 8px 26px rgba(2, 12, 27, 0.08);
            --shadow-lg: 0 18px 42px rgba(2, 12, 27, 0.12);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        input {
            font-family: inherit;
        }

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

        /* ===== Container ===== */
        .container-site {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(7, 20, 34, 0.92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .nav-panel-inner {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 100px;
            padding: 4px 6px;
            backdrop-filter: blur(8px);
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: 100px;
            color: rgba(255, 255, 255, 0.72);
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            transition: all 0.25s ease;
        }

        .nav-link:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-1px);
        }

        .nav-link.active {
            background: var(--color-accent);
            color: #06212A;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(45, 212, 191, 0.3);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: 100px;
            background: linear-gradient(135deg, #2DD4BF, #0FAE96);
            color: #06212A;
            font-size: 13px;
            font-weight: 700;
            box-shadow: 0 4px 16px rgba(45, 212, 191, 0.25);
            transition: all 0.3s ease;
        }

        .header-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(45, 212, 191, 0.35);
        }

        .mobile-menu-btn {
            width: 44px;
            height: 44px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: #ffffff;
            font-size: 18px;
            transition: all 0.25s ease;
        }

        .mobile-menu-btn:hover {
            background: rgba(255, 255, 255, 0.14);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 78px;
            left: 16px;
            right: 16px;
            background: var(--color-brand-dark);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 20px;
            padding: 16px;
            z-index: 999;
            box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
        }

        .mobile-menu.open {
            display: block;
            animation: fadeSlide 0.3s ease;
        }

        @keyframes fadeSlide {
            from {
                opacity: 0;
                transform: translateY(-10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .mobile-menu-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            border-radius: 14px;
            color: rgba(255, 255, 255, 0.82);
            font-weight: 500;
            font-size: 15px;
            transition: all 0.2s ease;
        }

        .mobile-menu-link:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
        }

        .mobile-menu-link.active {
            background: rgba(45, 212, 191, 0.15);
            color: var(--color-accent);
        }

        /* ===== Hero ===== */
        .article-hero {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 90px 0 64px;
            background-color: var(--color-brand-dark);
        }

        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(7, 20, 34, 0.94) 0%, rgba(7, 20, 34, 0.82) 45%, rgba(18, 50, 70, 0.55) 100%);
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
            transition: color 0.2s ease;
        }

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

        .breadcrumb i {
            font-size: 10px;
            color: rgba(255, 255, 255, 0.4);
        }

        .breadcrumb span {
            color: var(--color-accent);
            font-weight: 500;
            max-width: 400px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .article-hero-title {
            font-size: clamp(1.75rem, 3.5vw, 2.75rem);
            font-weight: 800;
            color: #ffffff;
            line-height: 1.25;
            margin-top: 18px;
            letter-spacing: -0.02em;
            max-width: 860px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 100px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(45, 212, 191, 0.16);
            color: var(--color-accent);
            border: 1px solid rgba(45, 212, 191, 0.25);
        }

        .badge-light {
            background: #F0FDFA;
            color: #0F766E;
            border-color: #CCFBF1;
        }

        .badge-white {
            background: rgba(255, 255, 255, 0.12);
            color: #ffffff;
            border-color: rgba(255, 255, 255, 0.18);
        }

        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 22px;
            align-items: center;
        }

        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 13px;
        }

        .hero-meta-item i {
            color: var(--color-accent);
        }

        /* ===== Page Body ===== */
        .page-body {
            padding: 60px 0 70px;
        }

        .article-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border);
            overflow: hidden;
        }

        .article-meta-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            padding: 20px 32px;
            background: #F8FAFC;
            border-bottom: 1px solid var(--color-border);
        }

        .meta-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
        }

        .meta-item i {
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(45, 212, 191, 0.12);
            color: #0F766E;
            border-radius: 10px;
            font-size: 14px;
        }

        .meta-label {
            color: var(--color-text-muted);
            display: block;
            font-size: 11px;
        }

        .meta-value {
            color: var(--color-text);
            font-weight: 600;
            display: block;
            font-size: 13px;
        }

        .article-content {
            padding: 36px 32px 42px;
            font-size: 1.0625rem;
            line-height: 1.85;
            color: #2E3B4E;
            word-break: break-word;
        }

        .article-content > * + * {
            margin-top: 1.15rem;
        }

        .article-content h2 {
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--color-text);
            margin-top: 2rem;
            margin-bottom: 0.7rem;
            padding-bottom: 0.45rem;
            border-bottom: 2px solid #EDF2F7;
        }

        .article-content h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--color-text);
            margin-top: 1.7rem;
        }

        .article-content p {
            margin-bottom: 0.5rem;
        }

        .article-content ul {
            list-style: disc;
            padding-left: 1.5rem;
            margin: 0.5rem 0;
        }

        .article-content ol {
            list-style: decimal;
            padding-left: 1.5rem;
            margin: 0.5rem 0;
        }

        .article-content li {
            margin-bottom: 0.4rem;
        }

        .article-content a {
            color: #0F766E;
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-content blockquote {
            border-left: 4px solid var(--color-accent);
            background: #F8FAFC;
            padding: 1rem 1.5rem;
            border-radius: 0 14px 14px 0;
            margin: 1.5rem 0;
            color: #475569;
        }

        .article-content img {
            max-width: 100%;
            height: auto;
            border-radius: 16px;
            margin: 1.5rem auto;
            box-shadow: var(--shadow-sm);
        }

        .article-content code {
            background: #F1F5F9;
            padding: 2px 8px;
            border-radius: 6px;
            font-size: 0.9em;
            color: #0F766E;
        }

        .article-content pre {
            background: var(--color-brand-dark);
            color: #E2E8F0;
            padding: 1.25rem;
            border-radius: 16px;
            overflow-x: auto;
            margin: 1.5rem 0;
        }

        .article-content pre code {
            background: transparent;
            padding: 0;
            color: #E2E8F0;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.95rem;
        }

        .article-content th,
        .article-content td {
            border: 1px solid var(--color-border);
            padding: 0.7rem 1rem;
            text-align: left;
        }

        .article-content th {
            background: #F8FAFC;
            font-weight: 600;
            color: var(--color-text);
        }

        .empty-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px dashed #CBD5E1;
            padding: 70px 40px;
            text-align: center;
            box-shadow: var(--shadow-sm);
        }

        .empty-card i {
            font-size: 44px;
            color: #CBD5E1;
            margin-bottom: 18px;
        }

        .empty-card h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 10px;
        }

        .empty-card p {
            color: var(--color-text-muted);
            margin-bottom: 24px;
            max-width: 380px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Buttons ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 100px;
            background: linear-gradient(135deg, #2DD4BF, #0FAE96);
            color: #06212A;
            font-size: 14px;
            font-weight: 700;
            box-shadow: 0 4px 16px rgba(45, 212, 191, 0.25);
            transition: all 0.3s ease;
            border: none;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(45, 212, 191, 0.35);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 100px;
            border: 1.5px solid rgba(255, 255, 255, 0.25);
            color: #ffffff;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .btn-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background: rgba(45, 212, 191, 0.08);
        }

        .btn-lg {
            padding: 15px 32px;
            font-size: 15px;
        }

        /* ===== Sidebar ===== */
        .side-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            padding: 24px;
            margin-bottom: 24px;
            transition: box-shadow 0.3s ease;
        }

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

        .side-card-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-text);
            padding-bottom: 14px;
            margin-bottom: 16px;
            border-bottom: 1px solid #EDF2F7;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .side-card-title i {
            color: var(--color-accent-dark);
        }

        .info-list {
            list-style: none;
        }

        .info-list li {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px solid #F1F5F9;
            font-size: 13px;
        }

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

        .info-label {
            color: var(--color-text-muted);
            font-weight: 500;
        }

        .info-value {
            color: var(--color-text);
            font-weight: 600;
        }

        .side-list {
            list-style: none;
        }

        .side-list li {
            margin-bottom: 4px;
        }

        .side-list-link {
            display: block;
            padding: 12px 14px;
            border-radius: 12px;
            transition: all 0.25s ease;
            border-left: 3px solid transparent;
        }

        .side-list-link:hover {
            background: #F8FAFC;
            border-left-color: var(--color-accent);
            transform: translateX(3px);
        }

        .side-list-title {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.5;
            margin-bottom: 4px;
        }

        .side-list-date {
            display: block;
            font-size: 12px;
            color: var(--color-text-muted);
        }

        .side-list-empty {
            color: var(--color-text-muted);
            font-size: 14px;
            padding: 12px;
            text-align: center;
        }

        .tag-link {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 100px;
            background: #F8FAFC;
            border: 1px solid var(--color-border);
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text);
            transition: all 0.25s ease;
        }

        .tag-link:hover {
            background: rgba(45, 212, 191, 0.1);
            border-color: var(--color-accent);
            color: #0F766E;
            transform: translateY(-2px);
        }

        .side-promo-card {
            background: linear-gradient(135deg, #0B1B2B, #123246);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            color: #ffffff;
            position: relative;
            overflow: hidden;
        }

        .side-promo-card::after {
            content: '';
            position: absolute;
            right: -30px;
            bottom: -30px;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(45, 212, 191, 0.15);
        }

        .side-promo-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .side-promo-card p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 18px;
            line-height: 1.6;
        }

        .side-promo-card .mini-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: 100px;
            background: var(--color-accent);
            color: #06212A;
            font-size: 13px;
            font-weight: 700;
            transition: all 0.3s ease;
        }

        .side-promo-card .mini-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(45, 212, 191, 0.3);
        }

        /* ===== Related News ===== */
        .related-section {
            padding: 60px 0;
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .section-head {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            margin-bottom: 32px;
            flex-wrap: wrap;
            gap: 16px;
        }

        .section-tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 100px;
            background: rgba(45, 212, 191, 0.12);
            color: #0F766E;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.04em;
            margin-bottom: 10px;
        }

        .section-tag-dark {
            background: rgba(45, 212, 191, 0.15);
            color: var(--color-accent);
        }

        .section-title {
            font-size: clamp(1.5rem, 2.4vw, 2rem);
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: -0.01em;
        }

        .news-card {
            display: block;
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all 0.35s ease;
            height: 100%;
        }

        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(45, 212, 191, 0.3);
        }

        .news-card-img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #E2E8F0;
            position: relative;
        }

        .news-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .news-card-body {
            padding: 22px;
        }

        .news-card-body h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            margin: 12px 0 8px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-body p {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
        }

        .news-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: #0F766E;
            transition: gap 0.25s ease;
        }

        .news-card:hover .news-card-link {
            gap: 12px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 74px 0;
            background: linear-gradient(135deg, #071422 0%, #0B1B2B 50%, #123246 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -120px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(45, 212, 191, 0.07);
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -80px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(45, 212, 191, 0.05);
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }

        .cta-title {
            font-size: clamp(1.6rem, 2.8vw, 2.25rem);
            font-weight: 800;
            color: #ffffff;
            line-height: 1.25;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .cta-content p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 15px;
            max-width: 520px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #060F1A;
        }

        .footer-link {
            display: inline-flex;
            align-items: center;
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
            transition: all 0.25s ease;
            padding: 2px 0;
        }

        .footer-link:hover {
            color: var(--color-accent);
            transform: translateX(4px);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-hero {
                padding: 70px 0 50px;
            }

            .page-body {
                padding: 44px 0 54px;
            }

            .related-section {
                padding: 48px 0;
            }
        }

        @media (max-width: 768px) {
            .container-site {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .article-hero {
                padding: 55px 0 40px;
            }

            .breadcrumb span {
                max-width: 220px;
            }

            .article-content {
                padding: 26px 20px 32px;
            }

            .article-meta-bar {
                padding: 16px 20px;
                gap: 16px;
            }

            .page-body {
                padding: 32px 0 44px;
            }

            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 24px;
            }

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

            .section-head {
                margin-bottom: 24px;
            }
        }

        @media (max-width: 520px) {
            .article-hero-title {
                font-size: 1.6rem;
            }

            .hero-meta {
                gap: 14px;
                flex-direction: column;
                align-items: flex-start;
            }

            .article-meta-bar {
                flex-direction: column;
                gap: 10px;
            }

            .primary-cta-row {
                flex-direction: column;
                width: 100%;
            }

            .primary-cta-row .btn-primary,
            .primary-cta-row .btn-outline {
                width: 100%;
                justify-content: center;
            }

            .mobile-menu {
                top: 70px;
            }
        }