/* roulang page: index */
:root {
            --primary: #2E6FB8;
            --primary-dark: #225A9B;
            --primary-light: #EEF4FA;
            --accent-green: #3AA76D;
            --accent-orange: #E8843C;
            --navy: #1F3A5F;
            --bg: #F7FAFD;
            --card-bg: #FFFFFF;
            --border-light: #E3ECF5;
            --text-main: #1F3A5F;
            --text-secondary: #5A6E88;
            --text-weak: #8CA0B8;
            --shadow-card: 0 1px 3px rgba(31, 58, 95, 0.06), 0 4px 12px rgba(31, 58, 95, 0.05);
            --shadow-card-hover: 0 4px 8px rgba(31, 58, 95, 0.1), 0 12px 28px rgba(31, 58, 95, 0.08);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-small: 6px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', system-ui, sans-serif;
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 0.95rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .font-display {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        .section-pad {
            padding: 80px 0;
        }
        .section-pad-lg {
            padding: 110px 0;
        }
        .nav-link {
            position: relative;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: 2px solid var(--primary);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(46, 111, 184, 0.3);
        }
        .btn-primary:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-primary:active {
            background: #1B4E86;
            border-color: #1B4E86;
            box-shadow: none;
            transform: translateY(0);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.875rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: 2px solid var(--primary);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .btn-outline:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(46, 111, 184, 0.15);
        }
        .btn-outline:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 16px;
            line-height: 1.4;
        }
        .badge-green {
            background: #E4F4EC;
            color: var(--accent-green);
        }
        .badge-orange {
            background: #FDF0E6;
            color: var(--accent-orange);
        }
        .badge-blue {
            background: var(--primary-light);
            color: var(--primary);
        }
        .card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary);
        }
        .stat-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            border-top: 4px solid var(--primary);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            font-family: 'Inter', sans-serif;
        }
        .stat-label {
            font-size: 0.875rem;
            color: var(--text-secondary);
            margin-top: 8px;
        }
        .faq-item {
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            background: var(--card-bg);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-main);
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            transition: all var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-arrow {
            flex-shrink: 0;
            transition: transform var(--transition-fast);
            font-size: 1rem;
            color: var(--text-weak);
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base);
            background: var(--bg);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 20px 24px;
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .news-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition-fast);
        }
        .news-item:hover {
            background: var(--primary-light);
            padding-left: 12px;
            border-radius: 8px;
        }
        .news-date {
            flex-shrink: 0;
            width: 90px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--primary);
            padding-top: 2px;
        }
        .news-content {
            flex: 1;
        }
        .news-title {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .news-summary {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .form-input {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #D8E4F0;
            border-radius: var(--radius-small);
            font-size: 0.875rem;
            transition: border-color var(--transition-fast);
            background: #fff;
            color: var(--text-main);
        }
        .form-input:focus {
            border-color: var(--primary);
            outline: none;
        }
        .form-label {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-main);
            margin-bottom: 6px;
            display: block;
        }
        .hero-bg {
            background: linear-gradient(135deg, #EAF2FA 0%, #F7FAFD 50%, #EEF4FA 100%);
        }
        .footer-bg {
            background: var(--navy);
            color: rgba(255, 255, 255, 0.8);
        }
        .footer-link {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition-fast);
        }
        .footer-link:hover {
            color: #fff;
        }
        .language-pill {
            display: inline-flex;
            align-items: center;
            border: 1px solid var(--border-light);
            border-radius: 20px;
            height: 32px;
            overflow: hidden;
        }
        .language-pill button {
            padding: 0 14px;
            font-size: 0.75rem;
            font-weight: 500;
            height: 32px;
            border: none;
            background: none;
            cursor: pointer;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }
        .language-pill button.active {
            background: var(--primary);
            color: #fff;
        }
        .mobile-menu {
            display: none;
        }
        @media (max-width: 1024px) {
            .section-pad {
                padding: 56px 0;
            }
            .section-pad-lg {
                padding: 72px 0;
            }
            .container {
                padding: 0 16px;
            }
        }
        @media (max-width: 768px) {
            .section-pad {
                padding: 40px 0;
            }
            .section-pad-lg {
                padding: 56px 0;
            }
            .mobile-menu {
                display: block;
            }
            .desktop-nav {
                display: none;
            }
            .stat-number {
                font-size: 2rem;
            }
            .news-item {
                flex-direction: column;
                gap: 8px;
            }
            .news-date {
                width: auto;
            }
        }
        @media (max-width: 520px) {
            .btn-primary,
            .btn-outline {
                width: 100%;
                justify-content: center;
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: stretch;
            }
            .faq-question {
                padding: 16px;
            }
            .faq-answer-inner {
                padding: 16px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #2E6FB8;
            --primary-dark: #225A9B;
            --primary-light: #EEF4FA;
            --accent-green: #3AA76D;
            --accent-orange: #E8843C;
            --navy: #1F3A5F;
            --bg: #F7FAFD;
            --card-bg: #FFFFFF;
            --border-light: #E3ECF5;
            --text-main: #1F3A5F;
            --text-secondary: #5A6E88;
            --text-weak: #8CA0B8;
            --shadow-card: 0 1px 3px rgba(31, 58, 95, 0.06), 0 4px 12px rgba(31, 58, 95, 0.05);
            --shadow-card-hover: 0 4px 8px rgba(31, 58, 95, 0.1), 0 12px 28px rgba(31, 58, 95, 0.08);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-small: 6px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', system-ui, sans-serif;
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 0.95rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        .section-pad {
            padding: 80px 0;
        }
        .section-pad-lg {
            padding: 110px 0;
        }
        .nav-link {
            position: relative;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: 2px solid var(--primary);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(46, 111, 184, 0.3);
        }
        .btn-primary:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-primary:active {
            background: #1B4E86;
            border-color: #1B4E86;
            box-shadow: none;
            transform: translateY(0);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.875rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: 2px solid var(--primary);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .btn-outline:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(46, 111, 184, 0.15);
        }
        .btn-outline:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 16px;
            line-height: 1.4;
        }
        .badge-green {
            background: #E4F4EC;
            color: var(--accent-green);
        }
        .badge-orange {
            background: #FDF0E6;
            color: var(--accent-orange);
        }
        .badge-blue {
            background: var(--primary-light);
            color: var(--primary);
        }
        .card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary);
        }
        .stat-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            border-top: 4px solid var(--primary);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .faq-item {
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            background: var(--card-bg);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-main);
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            transition: all var(--transition-fast);
        }
        .faq-answer {
            padding: 0 24px 20px;
            font-size: 0.875rem;
            color: var(--text-secondary);
            background: var(--bg);
            margin: 0 12px 12px;
            border-radius: var(--radius-small);
            display: none;
        }
        .faq-answer.open {
            display: block;
        }
        .faq-icon {
            transition: transform var(--transition-fast);
            font-size: 1.2rem;
            color: var(--primary);
        }
        .faq-question[aria-expanded="true"] .faq-icon {
            transform: rotate(180deg);
        }
        .footer-bg {
            background-color: var(--navy);
            color: rgba(255,255,255,0.8);
        }
        .footer-link {
            color: rgba(255,255,255,0.6);
            transition: color var(--transition-fast);
        }
        .footer-link:hover {
            color: #fff;
        }
        .language-pill {
            display: flex;
            align-items: center;
            gap: 4px;
            border: 1px solid var(--border-light);
            border-radius: 20px;
            padding: 3px;
            background: #fff;
        }
        .language-pill button {
            background: transparent;
            border: none;
            padding: 5px 12px;
            border-radius: 16px;
            font-size: 0.75rem;
            cursor: pointer;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            font-weight: 500;
        }
        .language-pill button.active {
            background: var(--primary-light);
            color: var(--primary);
        }
        .language-pill button:hover:not(.active) {
            color: var(--primary);
        }
        .navbar-mobile {
            display: none;
        }
        .mobile-menu {
            display: none;
        }
        .hero-banner {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            padding: 100px 0;
            color: #fff;
            min-height: 420px;
            display: flex;
            align-items: center;
        }
        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(31,58,95,0.85) 0%, rgba(46,111,184,0.6) 100%);
        }
        .hero-banner > * {
            position: relative;
            z-index: 1;
        }
        .banner-overlay {
            background: linear-gradient(135deg, rgba(31,58,95,0.85) 0%, rgba(46,111,184,0.6) 100%);
        }
        .masonry-grid {
            column-count: 3;
            column-gap: 24px;
        }
        .masonry-grid > .masonry-item {
            break-inside: avoid;
            margin-bottom: 24px;
        }
        @media (max-width: 1024px) {
            .desktop-nav, .language-pill-desktop, .header-cta-desktop {
                display: none !important;
            }
            .mobile-menu {
                display: block;
            }
            .navbar-mobile {
                display: flex;
                flex-direction: column;
                gap: 12px;
                padding: 16px 24px;
                background: #fff;
                border-top: 1px solid var(--border-light);
                box-shadow: var(--shadow-card);
            }
            .navbar-mobile a {
                padding: 8px 0;
                font-weight: 500;
                color: var(--text-secondary);
                border-bottom: 1px solid var(--bg);
            }
            .navbar-mobile a.active {
                color: var(--primary);
            }
            .masonry-grid {
                column-count: 2;
            }
        }
        @media (max-width: 767px) {
            .section-pad {
                padding: 48px 0;
            }
            .section-pad-lg {
                padding: 64px 0;
            }
            .hero-banner {
                padding: 60px 0;
                min-height: 320px;
            }
            .masonry-grid {
                column-count: 1;
            }
            .container {
                padding: 0 16px;
            }
            .hero-banner h1 {
                font-size: 1.8rem;
            }
            .hero-banner p {
                font-size: 0.95rem;
            }
        }
        .icon-box {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.5rem;
            flex-shrink: 0;
        }
        .flow-step {
            border-left: 2px dashed var(--border-light);
            padding-left: 24px;
            position: relative;
        }
        .flow-step::before {
            content: '';
            position: absolute;
            left: -8px;
            top: 0;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid #fff;
            box-shadow: 0 0 0 2px var(--primary);
        }
        .form-input {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid #D8E4F0;
            border-radius: var(--radius-small);
            font-size: 0.875rem;
            transition: border-color var(--transition-fast);
            background: #fff;
        }
        .form-input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46,111,184,0.1);
        }
        label {
            font-size: 0.875rem;
            font-weight: 500;
            margin-bottom: 6px;
            display: block;
        }
        .deep-analysis-card {
            display: flex;
            flex-direction: column;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .deep-analysis-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .deep-analysis-card img {
            height: 200px;
            object-fit: cover;
            width: 100%;
        }
        .deep-analysis-card .card-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .deep-analysis-card .card-title {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .deep-analysis-card .card-desc {
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }
        .deep-analysis-card .card-link {
            margin-top: 16px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.875rem;
        }
        .badge-outline {
            display: inline-block;
            padding: 2px 10px;
            font-size: 0.7rem;
            border-radius: 12px;
            border: 1px solid var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

/* roulang page: category1 */
:root {
            --primary: #2E6FB8;
            --primary-dark: #225A9B;
            --primary-light: #EEF4FA;
            --accent-green: #3AA76D;
            --accent-orange: #E8843C;
            --navy: #1F3A5F;
            --bg: #F7FAFD;
            --card-bg: #FFFFFF;
            --border-light: #E3ECF5;
            --text-main: #1F3A5F;
            --text-secondary: #5A6E88;
            --text-weak: #8CA0B8;
            --shadow-card: 0 1px 3px rgba(31, 58, 95, 0.06), 0 4px 12px rgba(31, 58, 95, 0.05);
            --shadow-card-hover: 0 4px 8px rgba(31, 58, 95, 0.1), 0 12px 28px rgba(31, 58, 95, 0.08);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-small: 6px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
        }

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', system-ui, sans-serif;
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 0.95rem;
            min-height: 100vh;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

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

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

        .section-pad {
            padding: 72px 0;
        }

        .section-pad-sm {
            padding: 48px 0;
        }

        .nav-link {
            position: relative;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
            white-space: nowrap;
            padding: 6px 0;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: 2px solid var(--primary);
            transition: all var(--transition-base);
            cursor: pointer;
            line-height: 1.2;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(46, 111, 184, 0.3);
        }
        .btn-primary:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-primary:active {
            background: #1B4E86;
            border-color: #1B4E86;
            box-shadow: none;
            transform: translateY(0);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.875rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: 2px solid var(--primary);
            transition: all var(--transition-base);
            cursor: pointer;
            line-height: 1.2;
        }
        .btn-outline:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(46, 111, 184, 0.15);
        }
        .btn-outline:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-outline:active {
            background: #DDE8F5;
            transform: translateY(0);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.8rem;
        }

        .badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 16px;
            line-height: 1.4;
        }
        .badge-green {
            background: #E4F4EC;
            color: var(--accent-green);
        }
        .badge-orange {
            background: #FDF0E6;
            color: var(--accent-orange);
        }
        .badge-blue {
            background: var(--primary-light);
            color: var(--primary);
        }
        .badge-navy {
            background: #E8EEF6;
            color: var(--navy);
        }

        .card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary);
        }

        .news-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .news-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
            background: var(--primary-light);
        }
        .news-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .news-card:hover .card-img-wrap img {
            transform: scale(1.03);
        }
        .news-card .card-date {
            font-size: 0.75rem;
            color: var(--text-weak);
            font-weight: 400;
        }

        .stat-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            border-top: 4px solid var(--primary);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .faq-item {
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            background: var(--card-bg);
            overflow: hidden;
            transition: all var(--transition-base);
            margin-bottom: 12px;
        }
        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-main);
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            transition: all var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 1.1rem;
            transition: transform var(--transition-fast);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.25s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-weak);
            margin-bottom: 12px;
            flex-wrap: wrap;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-weak);
            font-size: 0.7rem;
        }
        .breadcrumb .current {
            color: var(--text-secondary);
            font-weight: 500;
        }

        .sidebar-widget {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            padding: 24px;
            margin-bottom: 20px;
        }
        .sidebar-widget h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-light);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-bg {
            background: var(--navy);
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-link {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
            display: inline-block;
            padding: 2px 0;
        }
        .footer-link:hover {
            color: #fff;
        }

        .language-pill {
            display: flex;
            align-items: center;
            border: 1px solid var(--border-light);
            border-radius: 20px;
            overflow: hidden;
            height: 32px;
        }
        .language-pill button {
            padding: 0 14px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: transparent;
            border: none;
            height: 100%;
            transition: all var(--transition-fast);
        }
        .language-pill button.active {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
        }
        .language-pill button:not(.active):hover {
            background: #F0F5FA;
            color: var(--primary);
        }

        .mobile-menu {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            padding: 4px 8px;
            cursor: pointer;
        }
        .mobile-nav-panel {
            display: none;
        }

        .hot-list-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition-fast);
        }
        .hot-list-item:last-child {
            border-bottom: none;
        }
        .hot-list-item:hover {
            padding-left: 4px;
        }
        .hot-list-item .hot-num {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-orange);
            min-width: 24px;
            text-align: center;
            flex-shrink: 0;
        }
        .hot-list-item .hot-title {
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-main);
            line-height: 1.5;
            transition: color var(--transition-fast);
        }
        .hot-list-item:hover .hot-title {
            color: var(--primary);
        }

        .focus-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .focus-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary);
        }
        .focus-card .focus-img {
            aspect-ratio: 16/10;
            overflow: hidden;
            background: var(--primary-light);
        }
        .focus-card .focus-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .focus-card:hover .focus-img img {
            transform: scale(1.03);
        }
        .focus-card .focus-content {
            padding: 32px 36px 32px 8px;
        }

        .depth-article {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            padding: 40px 44px;
        }
        .depth-article h2 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
        }
        .depth-article h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-main);
            margin: 24px 0 12px;
        }
        .depth-article p {
            color: var(--text-secondary);
            margin-bottom: 16px;
            line-height: 1.85;
        }
        .depth-article ul {
            padding-left: 20px;
            margin-bottom: 16px;
            list-style: none;
        }
        .depth-article ul li {
            position: relative;
            padding-left: 20px;
            color: var(--text-secondary);
            margin-bottom: 8px;
        }
        .depth-article ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 6px;
            height: 6px;
            background: var(--primary);
            border-radius: 50%;
        }

        .brand-intro {
            text-align: center;
            max-width: 820px;
            margin: 0 auto;
        }
        .brand-intro img {
            max-width: 280px;
            margin: 0 auto 24px;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
        }
        .brand-intro p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.85;
            text-align: justify;
        }

        .filter-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 20px;
            border: 1px solid var(--border-light);
            background: #fff;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
        }
        .filter-pill:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .filter-pill.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        .newsletter-form input[type="email"],
        .newsletter-form input[type="text"] {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #D8E4F0;
            border-radius: var(--radius-small);
            font-size: 0.875rem;
            color: var(--text-main);
            background: #fff;
            transition: border-color var(--transition-fast);
            outline: none;
        }
        .newsletter-form input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 2px rgba(46, 111, 184, 0.15);
        }

        @media (max-width: 1023px) {
            .desktop-nav {
                display: none !important;
            }
            .mobile-menu {
                display: block;
            }
            .mobile-nav-panel {
                display: block;
                background: #fff;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-card);
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.35s ease;
            }
            .mobile-nav-panel.open {
                max-height: 500px;
            }
            .mobile-nav-panel a {
                display: block;
                padding: 12px 24px;
                font-size: 0.9rem;
                font-weight: 500;
                color: var(--text-secondary);
                border-bottom: 1px solid #F0F5FA;
                transition: all var(--transition-fast);
            }
            .mobile-nav-panel a:hover {
                color: var(--primary);
                background: var(--primary-light);
            }
            .mobile-nav-panel a.active {
                color: var(--primary);
                font-weight: 600;
                background: var(--primary-light);
            }
            .focus-card {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .focus-card .focus-content {
                padding: 24px 28px;
            }
            .section-pad {
                padding: 56px 0;
            }
            .depth-article {
                padding: 28px 24px;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }
            .section-pad {
                padding: 40px 0;
            }
            .section-pad-sm {
                padding: 32px 0;
            }
            .news-card .card-img-wrap {
                aspect-ratio: 16/9;
            }
            .breadcrumb {
                font-size: 0.75rem;
                margin-bottom: 8px;
            }
            .btn-primary, .btn-outline {
                padding: 10px 20px;
                font-size: 0.8rem;
            }
            .sidebar-widget {
                padding: 18px;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 0.9rem;
            }
            .faq-answer {
                padding: 0 18px;
                font-size: 0.85rem;
            }
            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }
            .depth-article {
                padding: 20px 18px;
            }
            .depth-article h2 {
                font-size: 1.2rem;
            }
            .brand-intro img {
                max-width: 200px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 12px;
            }
            .language-pill {
                height: 28px;
            }
            .language-pill button {
                padding: 0 10px;
                font-size: 0.7rem;
            }
            .mobile-menu {
                font-size: 1.3rem;
                padding: 2px 6px;
            }
            .mobile-nav-panel a {
                padding: 10px 16px;
                font-size: 0.85rem;
            }
            .badge-tag {
                font-size: 0.7rem;
                padding: 3px 10px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #2E6FB8;
            --primary-dark: #225A9B;
            --primary-light: #EEF4FA;
            --accent-green: #3AA76D;
            --accent-orange: #E8843C;
            --navy: #1F3A5F;
            --bg: #F7FAFD;
            --card-bg: #FFFFFF;
            --border-light: #E3ECF5;
            --text-main: #1F3A5F;
            --text-secondary: #5A6E88;
            --text-weak: #8CA0B8;
            --shadow-card: 0 1px 3px rgba(31, 58, 95, 0.06), 0 4px 12px rgba(31, 58, 95, 0.05);
            --shadow-card-hover: 0 4px 8px rgba(31, 58, 95, 0.1), 0 12px 28px rgba(31, 58, 95, 0.08);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-small: 6px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
        }

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

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', system-ui, sans-serif;
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 0.95rem;
            min-height: 100vh;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

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

        .section-pad {
            padding: 80px 0;
        }

        .section-pad-lg {
            padding: 110px 0;
        }

        .section-pad-sm {
            padding: 56px 0;
        }

        /* Navigation */
        .nav-link {
            position: relative;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

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

        .nav-link.active {
            color: var(--primary);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .language-pill {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: 18px;
            padding: 3px;
        }

        .language-pill button {
            border: none;
            background: none;
            padding: 4px 14px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 14px;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .language-pill button.active {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
        }

        .language-pill button:focus {
            outline: 2px solid var(--primary);
            outline-offset: 1px;
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: 2px solid var(--primary);
            transition: all var(--transition-base);
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(46, 111, 184, 0.3);
        }

        .btn-primary:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .btn-primary:active {
            background: #1B4E86;
            border-color: #1B4E86;
            box-shadow: none;
            transform: translateY(0);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.875rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: 2px solid var(--primary);
            transition: all var(--transition-base);
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-outline:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(46, 111, 184, 0.15);
        }

        .btn-outline:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .btn-outline:active {
            background: #D6E4F5;
            box-shadow: none;
            transform: translateY(0);
        }

        /* Badges */
        .badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 16px;
            line-height: 1.4;
        }

        .badge-green {
            background: #E4F4EC;
            color: var(--accent-green);
        }

        .badge-orange {
            background: #FDF0E6;
            color: var(--accent-orange);
        }

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

        .badge-navy {
            background: #E8EEF7;
            color: var(--navy);
        }

        /* Cards */
        .card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
        }

        .card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary);
        }

        .stat-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            border-top: 4px solid var(--primary);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition-base);
        }

        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        /* Timeline Styles */
        .timeline-wrapper {
            position: relative;
        }

        .timeline-wrapper::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 140px;
            width: 3px;
            background: linear-gradient(to bottom, var(--primary-light), var(--primary), var(--primary-light));
            border-radius: 3px;
        }

        .timeline-item {
            position: relative;
            padding-left: 190px;
            margin-bottom: 40px;
        }

        .timeline-item:last-child {
            margin-bottom: 0;
        }

        .timeline-date {
            position: absolute;
            left: 0;
            top: 8px;
            width: 120px;
            text-align: right;
            padding-right: 28px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            line-height: 1.5;
        }

        .timeline-date .year {
            display: block;
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--navy);
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: 138px;
            top: 10px;
            width: 7px;
            height: 7px;
            background: var(--primary);
            border-radius: 50%;
            box-shadow: 0 0 0 5px var(--primary-light);
            z-index: 2;
        }

        .timeline-item.important::before {
            background: var(--accent-orange);
            box-shadow: 0 0 0 5px #FDF0E6;
        }

        .timeline-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            padding: 28px 32px;
            display: flex;
            gap: 28px;
            align-items: flex-start;
            transition: all var(--transition-base);
        }

        .timeline-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .timeline-card-image {
            width: 240px;
            flex-shrink: 0;
            aspect-ratio: 16/10;
            border-radius: 10px;
            overflow: hidden;
            background: var(--primary-light);
        }

        .timeline-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }

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

        .timeline-card-content {
            flex: 1;
        }

        /* Filter Pills */
        .filter-pill {
            padding: 8px 20px;
            border-radius: 22px;
            font-size: 0.8rem;
            font-weight: 500;
            background: #fff;
            color: var(--text-secondary);
            border: 1px solid var(--border-light);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .filter-pill:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .filter-pill.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .filter-pill:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* FAQ */
        .faq-item {
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            background: var(--card-bg);
            overflow: hidden;
            transition: all var(--transition-base);
            margin-bottom: 12px;
        }

        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-main);
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            transition: all var(--transition-fast);
        }

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

        .faq-question .faq-icon {
            color: var(--text-weak);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 24px;
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
            background: #F7FAFD;
        }

        /* Form */
        .form-input {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #D8E4F0;
            border-radius: var(--radius-small);
            font-size: 0.875rem;
            color: var(--text-main);
            background: #fff;
            transition: all var(--transition-fast);
            font-family: inherit;
        }

        .form-input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 111, 184, 0.1);
        }

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

        .form-label {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-secondary);
            margin-bottom: 6px;
            display: block;
        }

        /* Footer */
        .footer-bg {
            background: var(--navy);
            color: rgba(255, 255, 255, 0.75);
        }

        .footer-bg h3 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-link {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition-fast);
        }

        .footer-link:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 20px 0;
            margin-top: 48px;
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.45);
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            color: var(--text-weak);
            margin-bottom: 16px;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb .separator {
            color: var(--text-weak);
        }

        /* Mobile menu */
        .mobile-menu {
            display: none;
        }

        .desktop-nav {
            display: flex;
        }

        @media (max-width: 1024px) {
            .desktop-nav {
                display: none;
            }

            .mobile-menu {
                display: block;
            }

            .language-pill {
                display: none;
            }

            .header-cta {
                display: none;
            }

            .timeline-wrapper::before {
                left: 12px;
            }

            .timeline-item {
                padding-left: 44px;
                margin-bottom: 24px;
            }

            .timeline-date {
                position: static;
                width: auto;
                text-align: left;
                padding: 0 0 8px 0;
                display: flex;
                align-items: baseline;
                gap: 8px;
            }

            .timeline-date .year {
                display: inline;
                font-size: 0.95rem;
            }

            .timeline-item::before {
                left: 10px;
            }

            .timeline-card {
                flex-direction: column;
                padding: 20px;
            }

            .timeline-card-image {
                width: 100%;
                aspect-ratio: 16/9;
            }
        }

        @media (max-width: 767px) {
            .section-pad {
                padding: 48px 0;
            }

            .section-pad-lg {
                padding: 64px 0;
            }

            .section-pad-sm {
                padding: 36px 0;
            }

            .container {
                padding: 0 16px;
            }

            .timeline-card {
                padding: 16px;
                gap: 16px;
            }

            .timeline-card-image {
                aspect-ratio: 16/9;
                border-radius: 8px;
            }

            .filter-pill {
                padding: 6px 14px;
                font-size: 0.7rem;
            }

            .faq-question {
                padding: 16px 18px;
                font-size: 0.875rem;
            }

            .faq-answer {
                font-size: 0.8rem;
                padding: 0 18px;
            }

            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }
        }

        @media (min-width: 1025px) {
            .mobile-nav-drawer {
                display: none !important;
            }
        }

        /* Mobile nav drawer */
        .mobile-nav-drawer {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border-light);
            padding: 16px 24px;
        }

        .mobile-nav-drawer.open {
            display: block;
        }

        .mobile-nav-drawer .mobile-nav-link {
            display: block;
            padding: 10px 0;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-bottom: 1px solid #F0F4F9;
            transition: color var(--transition-fast);
        }

        .mobile-nav-drawer .mobile-nav-link:hover,
        .mobile-nav-drawer .mobile-nav-link.active {
            color: var(--primary);
        }

        .mobile-nav-drawer .mobile-nav-link:last-child {
            border-bottom: none;
        }

        /* Highlight section */
        .highlight-band {
            background: linear-gradient(135deg, var(--primary-light) 0%, #F5F9FD 50%, #E8F2FB 100%);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            padding: 32px 36px;
        }

        /* Section title accent */
        .section-accent {
            display: inline-block;
            width: 40px;
            height: 4px;
            background: var(--primary);
            border-radius: 2px;
            margin-bottom: 16px;
        }

        .section-accent.orange {
            background: var(--accent-orange);
        }

        .section-accent.green {
            background: var(--accent-green);
        }

        /* Divider */
        .divider-light {
            height: 1px;
            background: var(--border-light);
            margin: 32px 0;
        }

        /* Profile pill */
        .profile-pill {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: 20px;
            padding: 5px 14px 5px 5px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }

        .profile-pill:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .profile-pill .avatar-circle {
            width: 28px;
            height: 28px;
            background: var(--primary-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.75rem;
        }

        /* Subscription box */
        .subscribe-box {
            background: var(--navy);
            border-radius: var(--radius-card);
            padding: 40px 36px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .subscribe-box::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
        }

        .subscribe-box::before {
            content: '';
            position: absolute;
            bottom: -40px;
            right: 100px;
            width: 120px;
            height: 120px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
        }

/* roulang page: category4 */
:root {
            --primary: #2E6FB8;
            --primary-dark: #225A9B;
            --primary-light: #EEF4FA;
            --accent-green: #3AA76D;
            --accent-orange: #E8843C;
            --navy: #1F3A5F;
            --bg: #F7FAFD;
            --card-bg: #FFFFFF;
            --border-light: #E3ECF5;
            --text-main: #1F3A5F;
            --text-secondary: #5A6E88;
            --text-weak: #8CA0B8;
            --shadow-card: 0 1px 3px rgba(31, 58, 95, 0.06), 0 4px 12px rgba(31, 58, 95, 0.05);
            --shadow-card-hover: 0 4px 8px rgba(31, 58, 95, 0.1), 0 12px 28px rgba(31, 58, 95, 0.08);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-small: 6px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
        }

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

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', system-ui, sans-serif;
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 0.95rem;
            min-height: 100vh;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

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

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

        button {
            font-family: inherit;
        }

        .section-pad {
            padding: 80px 0;
        }

        .section-pad-lg {
            padding: 110px 0;
        }

        .section-pad-sm {
            padding: 48px 0;
        }

        .nav-link {
            position: relative;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
            white-space: nowrap;
            padding: 4px 0;
        }

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

        .nav-link.active {
            color: var(--primary);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff !important;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: 2px solid var(--primary);
            transition: all var(--transition-base);
            cursor: pointer;
            text-align: center;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(46, 111, 184, 0.3);
            color: #fff;
        }

        .btn-primary:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .btn-primary:active {
            background: #1B4E86;
            border-color: #1B4E86;
            box-shadow: none;
            transform: translateY(0);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #fff;
            color: var(--primary) !important;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: 2px solid var(--primary);
            transition: all var(--transition-base);
            cursor: pointer;
            text-align: center;
        }

        .btn-outline:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(46, 111, 184, 0.15);
        }

        .btn-outline:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .btn-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #fff;
            color: var(--primary) !important;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: 2px solid #fff;
            transition: all var(--transition-base);
            cursor: pointer;
            text-align: center;
        }

        .btn-white:hover {
            background: #f0f7ff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
        }

        .badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 16px;
            line-height: 1.4;
        }

        .badge-green {
            background: #E4F4EC;
            color: var(--accent-green);
        }

        .badge-orange {
            background: #FDF0E6;
            color: var(--accent-orange);
        }

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

        .badge-red {
            background: #FDE8E8;
            color: #D9534F;
        }

        .card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
        }

        .card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary);
        }

        .language-pill {
            display: flex;
            align-items: center;
            border: 1px solid var(--border-light);
            border-radius: 20px;
            padding: 2px;
            background: #fff;
            height: 34px;
        }

        .language-pill button {
            border: none;
            background: transparent;
            font-size: 0.75rem;
            font-weight: 500;
            padding: 4px 10px;
            border-radius: 16px;
            cursor: pointer;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            height: 28px;
            line-height: 20px;
        }

        .language-pill button.active {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
        }

        .language-pill button:hover {
            color: var(--primary);
        }

        .countdown-box {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .countdown-item {
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(8px);
            border-radius: var(--radius-card);
            padding: 14px 18px;
            min-width: 72px;
            text-align: center;
            box-shadow: 0 4px 16px rgba(31, 58, 95, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.6);
        }

        .countdown-item .num {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--navy);
            line-height: 1.2;
            font-family: 'Inter', system-ui, sans-serif;
        }

        .countdown-item .label {
            font-size: 0.7rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .event-card-large {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .event-card-large:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary);
            transform: translateY(-4px);
        }

        .event-card-large .event-img {
            height: 240px;
            overflow: hidden;
            position: relative;
        }

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

        .event-card-large:hover .event-img img {
            transform: scale(1.04);
        }

        .event-card-large .event-body {
            padding: 24px 28px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .event-card-large .event-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            font-size: 0.8rem;
            color: var(--text-secondary);
            margin-bottom: 12px;
            align-items: center;
        }

        .event-card-large .event-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .review-thumb {
            border-radius: 10px;
            overflow: hidden;
            position: relative;
            aspect-ratio: 16/10;
            cursor: pointer;
            transition: all var(--transition-base);
            border: 2px solid transparent;
        }

        .review-thumb:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }

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

        .review-thumb .thumb-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 20px 14px 12px;
            background: linear-gradient(180deg, transparent, rgba(31, 58, 95, 0.85));
            color: #fff;
            font-size: 0.8rem;
            font-weight: 500;
            line-height: 1.4;
        }

        .faq-item {
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            background: var(--card-bg);
            overflow: hidden;
            transition: all var(--transition-base);
            margin-bottom: 12px;
        }

        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-main);
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            transition: all var(--transition-fast);
        }

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

        .faq-question .faq-icon {
            transition: transform 0.2s ease;
            color: var(--text-weak);
            flex-shrink: 0;
        }

        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 24px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        .faq-answer-inner {
            background: #F7FAFD;
            border-radius: 8px;
            padding: 16px 18px;
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .input-light {
            width: 100%;
            border: 1px solid #D8E4F0;
            border-radius: var(--radius-small);
            padding: 12px 16px;
            font-size: 0.9rem;
            color: var(--text-main);
            background: #fff;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            outline: none;
            font-family: inherit;
        }

        .input-light:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 111, 184, 0.12);
        }

        .input-light::placeholder {
            color: var(--text-weak);
        }

        select.input-light {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%235A6E88' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 36px;
        }

        .footer-bg {
            background: var(--navy);
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-link {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
            font-size: 0.85rem;
        }

        .footer-link:hover {
            color: #fff;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            color: var(--text-weak);
            margin-bottom: 18px;
            flex-wrap: wrap;
        }

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

        .desktop-nav {
            display: flex;
        }

        .mobile-menu {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            color: var(--primary);
            font-size: 1.5rem;
            line-height: 1;
        }

        .mobile-nav-panel {
            display: none;
        }

        .hero-event-banner {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow-card-hover);
        }

        .hero-event-banner .banner-bg {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 0;
            background-size: cover;
            background-position: center;
        }

        .hero-event-banner .banner-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 1;
            background: linear-gradient(160deg, rgba(31, 58, 95, 0.85) 0%, rgba(31, 58, 95, 0.55) 45%, rgba(46, 111, 184, 0.35) 100%);
        }

        .hero-event-banner .banner-content {
            position: relative;
            z-index: 2;
            padding: 48px 40px;
            width: 100%;
            color: #fff;
        }

        .hero-event-banner .banner-content h1 {
            color: #fff;
            font-size: 2.6rem;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 12px;
        }

        .hero-event-banner .banner-content p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.05rem;
            max-width: 600px;
            margin-bottom: 24px;
            line-height: 1.8;
        }

        .section-title {
            font-size: 1.7rem;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.35;
            margin-bottom: 10px;
        }

        .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 36px;
        }

        .event-timeline {
            position: relative;
            padding-left: 28px;
        }

        .event-timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--border-light);
        }

        .event-timeline-item {
            position: relative;
            padding-left: 18px;
            margin-bottom: 24px;
        }

        .event-timeline-item::before {
            content: '';
            position: absolute;
            left: -24px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid var(--primary-light);
        }

        .event-timeline-item.completed::before {
            background: var(--accent-green);
            border-color: #E4F4EC;
        }

        .event-timeline-item.upcoming::before {
            background: var(--accent-orange);
            border-color: #FDF0E6;
        }

        .data-stat-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 20px;
        }

        .data-stat {
            text-align: center;
            padding: 22px 18px;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            border-top: 4px solid var(--accent-green);
            transition: all var(--transition-base);
        }

        .data-stat:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .data-stat .stat-num {
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--navy);
            line-height: 1.2;
            font-family: 'Inter', system-ui, sans-serif;
        }

        .data-stat .stat-label {
            font-size: 0.78rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        @media (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }
            .section-pad {
                padding: 64px 0;
            }
            .section-pad-lg {
                padding: 80px 0;
            }
            .hero-event-banner {
                min-height: 360px;
            }
            .hero-event-banner .banner-content h1 {
                font-size: 2.1rem;
            }
            .desktop-nav {
                gap: 20px;
            }
            .desktop-nav .nav-link {
                font-size: 0.8rem;
            }
            .event-card-large .event-img {
                height: 200px;
            }
        }

        @media (max-width: 768px) {
            .desktop-nav {
                display: none !important;
            }
            .mobile-menu {
                display: block;
            }
            .mobile-nav-panel {
                display: none;
                flex-direction: column;
                gap: 12px;
                padding: 16px 0;
                border-top: 1px solid var(--border-light);
                background: #fff;
            }
            .mobile-nav-panel.open {
                display: flex;
            }
            .mobile-nav-panel .nav-link {
                font-size: 0.9rem;
                padding: 8px 0;
            }
            .language-pill {
                height: 32px;
            }
            .language-pill button {
                font-size: 0.7rem;
                padding: 3px 8px;
                height: 24px;
                line-height: 18px;
            }
            .hero-event-banner {
                min-height: 320px;
                border-radius: 12px;
            }
            .hero-event-banner .banner-content {
                padding: 28px 20px;
            }
            .hero-event-banner .banner-content h1 {
                font-size: 1.7rem;
            }
            .hero-event-banner .banner-content p {
                font-size: 0.85rem;
            }
            .countdown-item {
                min-width: 58px;
                padding: 10px 12px;
            }
            .countdown-item .num {
                font-size: 1.2rem;
            }
            .section-pad {
                padding: 48px 0;
            }
            .section-pad-lg {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .event-card-large .event-img {
                height: 170px;
            }
            .event-card-large .event-body {
                padding: 18px 18px 20px;
            }
            .data-stat-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .data-stat .stat-num {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-event-banner {
                min-height: 280px;
            }
            .hero-event-banner .banner-content h1 {
                font-size: 1.4rem;
            }
            .countdown-box {
                gap: 8px;
            }
            .countdown-item {
                min-width: 48px;
                padding: 8px 8px;
                border-radius: 8px;
            }
            .countdown-item .num {
                font-size: 1rem;
            }
            .countdown-item .label {
                font-size: 0.6rem;
            }
            .event-card-large .event-img {
                height: 150px;
            }
            .data-stat-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .data-stat {
                padding: 16px 12px;
            }
            .data-stat .stat-num {
                font-size: 1.2rem;
            }
            .faq-question {
                padding: 16px 16px;
                font-size: 0.875rem;
            }
            .faq-answer {
                padding: 0 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
            }
        }

/* roulang page: category7 */
:root {
            --primary: #2E6FB8;
            --primary-dark: #225A9B;
            --primary-light: #EEF4FA;
            --accent-green: #3AA76D;
            --accent-orange: #E8843C;
            --navy: #1F3A5F;
            --bg: #F7FAFD;
            --card-bg: #FFFFFF;
            --border-light: #E3ECF5;
            --text-main: #1F3A5F;
            --text-secondary: #5A6E88;
            --text-weak: #8CA0B8;
            --shadow-card: 0 1px 3px rgba(31, 58, 95, 0.06), 0 4px 12px rgba(31, 58, 95, 0.05);
            --shadow-card-hover: 0 4px 8px rgba(31, 58, 95, 0.1), 0 12px 28px rgba(31, 58, 95, 0.08);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-small: 6px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', system-ui, sans-serif;
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 0.95rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        .section-pad {
            padding: 80px 0;
        }
        .section-pad-sm {
            padding: 52px 0;
        }
        .nav-link {
            position: relative;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: 2px solid var(--primary);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(46, 111, 184, 0.3);
        }
        .btn-primary:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-primary:active {
            background: #1B4E86;
            border-color: #1B4E86;
            box-shadow: none;
            transform: translateY(0);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.875rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: 2px solid var(--primary);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .btn-outline:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(46, 111, 184, 0.15);
        }
        .btn-outline:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 16px;
            line-height: 1.4;
        }
        .badge-green {
            background: #E4F4EC;
            color: var(--accent-green);
        }
        .badge-orange {
            background: #FDF0E6;
            color: var(--accent-orange);
        }
        .badge-blue {
            background: var(--primary-light);
            color: var(--primary);
        }
        .card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary);
        }
        .faq-item {
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            background: var(--card-bg);
            overflow: hidden;
            transition: all var(--transition-base);
            margin-bottom: 12px;
        }
        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            font-weight: 600;
            font-size: 0.925rem;
            color: var(--text-main);
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            transition: all var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .arrow {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            position: relative;
            transition: transform 0.2s ease;
        }
        .faq-question .arrow::before,
        .faq-question .arrow::after {
            content: '';
            position: absolute;
            background: var(--primary);
            border-radius: 2px;
            transition: all 0.2s ease;
        }
        .faq-question .arrow::before {
            width: 12px;
            height: 2px;
            top: 9px;
            left: 4px;
        }
        .faq-question .arrow::after {
            width: 2px;
            height: 12px;
            left: 9px;
            top: 4px;
        }
        .faq-item.open .faq-question .arrow {
            transform: rotate(90deg);
        }
        .faq-item.open .faq-question .arrow::after {
            transform: scaleX(0);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 22px;
            background: #F7FAFD;
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 16px 22px 20px;
        }
        .language-pill {
            display: inline-flex;
            align-items: center;
            border: 1px solid var(--border-light);
            border-radius: 20px;
            overflow: hidden;
            height: 32px;
            font-size: 0.75rem;
            flex-shrink: 0;
        }
        .language-pill button {
            padding: 0 12px;
            height: 100%;
            background: transparent;
            border: none;
            cursor: pointer;
            color: var(--text-secondary);
            font-weight: 500;
            transition: all var(--transition-fast);
            font-size: 0.75rem;
        }
        .language-pill button.active {
            background: var(--primary-light);
            color: var(--primary);
        }
        .language-pill button:hover:not(.active) {
            color: var(--primary);
        }
        .form-input {
            width: 100%;
            border: 1px solid #D8E4F0;
            border-radius: var(--radius-small);
            padding: 10px 14px;
            font-size: 0.875rem;
            color: var(--text-main);
            background: #fff;
            transition: all var(--transition-fast);
            font-family: inherit;
            outline: none;
        }
        .form-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 111, 184, 0.12);
        }
        .form-label {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-main);
            margin-bottom: 6px;
            display: block;
        }
        .footer-bg {
            background: var(--navy);
            color: rgba(255, 255, 255, 0.72);
        }
        .footer-link {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
            font-size: 0.85rem;
        }
        .footer-link:hover {
            color: #fff;
        }
        .search-box-wrap {
            position: relative;
            max-width: 640px;
            margin: 0 auto;
        }
        .search-box-wrap .form-input {
            padding: 16px 52px 16px 22px;
            font-size: 1rem;
            border-radius: 32px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            height: 56px;
        }
        .search-box-wrap .search-icon {
            position: absolute;
            right: 20px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--primary);
            font-size: 1.2rem;
            pointer-events: none;
        }
        .quick-link-card {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 20px 22px;
            transition: all var(--transition-base);
            cursor: pointer;
            display: block;
        }
        .quick-link-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .step-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            padding: 28px 24px;
            position: relative;
            transition: all var(--transition-base);
        }
        .step-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card-hover);
        }
        .step-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 700;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
        }
        .help-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 500;
            color: var(--accent-green);
            background: #E4F4EC;
            padding: 4px 14px;
            border-radius: 16px;
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
        }
        .help-tag:hover {
            background: var(--accent-green);
            color: #fff;
        }
        .mobile-menu {
            display: none;
        }
        .desktop-nav {
            display: flex;
        }
        @media (max-width: 1023px) {
            .desktop-nav {
                display: none;
            }
            .mobile-menu {
                display: block;
            }
            .language-pill {
                height: 28px;
                font-size: 0.7rem;
            }
            .language-pill button {
                padding: 0 8px;
                font-size: 0.7rem;
            }
        }
        @media (max-width: 767px) {
            .section-pad {
                padding: 48px 0;
            }
            .section-pad-sm {
                padding: 36px 0;
            }
            .container {
                padding: 0 16px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.85rem;
            }
            .faq-answer {
                padding: 0 16px;
                font-size: 0.8rem;
            }
            .faq-item.open .faq-answer {
                padding: 12px 16px 16px;
            }
            .search-box-wrap .form-input {
                height: 48px;
                font-size: 0.9rem;
                padding: 12px 44px 12px 16px;
            }
            .step-card {
                padding: 20px 18px;
            }
        }
        .mobile-nav-panel {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border-light);
            padding: 16px 24px;
        }
        .mobile-nav-panel.open {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .mobile-nav-panel .nav-link {
            font-size: 0.95rem;
            padding: 8px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .mobile-nav-panel .nav-link:last-child {
            border-bottom: none;
        }

/* roulang page: category6 */
:root {
            --primary: #2E6FB8;
            --primary-dark: #225A9B;
            --primary-light: #EEF4FA;
            --accent-green: #3AA76D;
            --accent-orange: #E8843C;
            --navy: #1F3A5F;
            --bg: #F7FAFD;
            --card-bg: #FFFFFF;
            --border-light: #E3ECF5;
            --text-main: #1F3A5F;
            --text-secondary: #5A6E88;
            --text-weak: #8CA0B8;
            --shadow-card: 0 1px 3px rgba(31, 58, 95, 0.06), 0 4px 12px rgba(31, 58, 95, 0.05);
            --shadow-card-hover: 0 4px 8px rgba(31, 58, 95, 0.1), 0 12px 28px rgba(31, 58, 95, 0.08);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-small: 6px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
        }

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', system-ui, sans-serif;
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 0.95rem;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

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

        .section-pad {
            padding: 80px 0;
        }
        .section-pad-sm {
            padding: 56px 0;
        }
        .section-pad-lg {
            padding: 110px 0;
        }

        .nav-link {
            position: relative;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: 2px solid var(--primary);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(46, 111, 184, 0.3);
        }
        .btn-primary:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-primary:active {
            background: #1B4E86;
            border-color: #1B4E86;
            box-shadow: none;
            transform: translateY(0);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.875rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: 2px solid var(--primary);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .btn-outline:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(46, 111, 184, 0.15);
        }
        .btn-outline:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 16px;
            line-height: 1.4;
        }
        .badge-green {
            background: #E4F4EC;
            color: var(--accent-green);
        }
        .badge-orange {
            background: #FDF0E6;
            color: var(--accent-orange);
        }
        .badge-blue {
            background: var(--primary-light);
            color: var(--primary);
        }
        .badge-navy {
            background: #E8EDF5;
            color: var(--navy);
        }

        .card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary);
        }
        .card-flat {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
        }
        .card-flat:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card);
        }

        .resource-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .resource-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .resource-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            flex-shrink: 0;
        }
        .resource-icon-guide {
            background: #E4F4EC;
            color: var(--accent-green);
        }
        .resource-icon-data {
            background: var(--primary-light);
            color: var(--primary);
        }
        .resource-icon-tool {
            background: #FDF0E6;
            color: var(--accent-orange);
        }

        .filter-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border-radius: 24px;
            font-size: 0.875rem;
            font-weight: 500;
            border: 1px solid var(--border-light);
            background: #fff;
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .filter-pill:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }
        .filter-pill.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .filter-pill:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .stat-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            border-top: 4px solid var(--primary);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .stat-card.stat-green {
            border-top-color: var(--accent-green);
        }
        .stat-card.stat-orange {
            border-top-color: var(--accent-orange);
        }
        .stat-card.stat-navy {
            border-top-color: var(--navy);
        }

        .faq-item {
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            background: var(--card-bg);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-main);
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            transition: all var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 24px;
            background: #F7FAFD;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 20px 24px;
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
        }
        .faq-arrow {
            transition: transform 0.2s ease;
            flex-shrink: 0;
            font-size: 0.8rem;
            color: var(--text-weak);
        }

        .footer-bg {
            background: var(--navy);
            color: rgba(255, 255, 255, 0.8);
        }
        .footer-link {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
            font-size: 0.875rem;
        }
        .footer-link:hover {
            color: #fff;
        }

        .language-pill {
            display: flex;
            align-items: center;
            border: 1px solid var(--border-light);
            border-radius: 24px;
            overflow: hidden;
            background: #fff;
            height: 36px;
            flex-shrink: 0;
        }
        .language-pill button {
            padding: 0 14px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: none;
            border: none;
            cursor: pointer;
            height: 100%;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .language-pill button.active {
            background: var(--primary-light);
            color: var(--primary);
        }
        .language-pill button:hover:not(.active) {
            color: var(--primary);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            color: var(--text-weak);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--text-weak);
        }

        .mobile-menu {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
        }

        .desktop-nav {
            display: flex;
        }

        @media (max-width: 1024px) {
            .desktop-nav {
                display: none;
            }
            .mobile-menu {
                display: block;
            }
            .mobile-nav {
                display: flex;
            }
            .language-pill {
                height: 32px;
            }
            .language-pill button {
                padding: 0 10px;
                font-size: 0.7rem;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }
            .section-pad,
            .section-pad-sm {
                padding: 48px 0;
            }
            .section-pad-lg {
                padding: 64px 0;
            }
            .grid-cols-md-3 {
                grid-template-columns: 1fr;
            }
            .filter-pill {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
        }

        .resource-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        @media (max-width: 1024px) {
            .resource-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }
        @media (max-width: 640px) {
            .resource-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        .hero-resources {
            background: linear-gradient(135deg, #EEF4FA 0%, #F7FAFD 55%, #FFFFFF 100%);
            border-bottom: 1px solid var(--border-light);
        }
        .breadcrumb-bar {
            background: #fff;
            border-bottom: 1px solid var(--border-light);
        }

/* roulang page: category5 */
:root {
            --primary: #2E6FB8;
            --primary-dark: #225A9B;
            --primary-light: #EEF4FA;
            --accent-green: #3AA76D;
            --accent-orange: #E8843C;
            --navy: #1F3A5F;
            --bg: #F7FAFD;
            --card-bg: #FFFFFF;
            --border-light: #E3ECF5;
            --text-main: #1F3A5F;
            --text-secondary: #5A6E88;
            --text-weak: #8CA0B8;
            --shadow-card: 0 1px 3px rgba(31, 58, 95, 0.06), 0 4px 12px rgba(31, 58, 95, 0.05);
            --shadow-card-hover: 0 4px 8px rgba(31, 58, 95, 0.1), 0 12px 28px rgba(31, 58, 95, 0.08);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-small: 6px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
        }

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', system-ui, sans-serif;
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

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

        .section-pad {
            padding: 80px 0;
        }
        .section-pad-lg {
            padding: 110px 0;
        }

        .nav-link {
            position: relative;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: 2px solid var(--primary);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(46, 111, 184, 0.3);
        }
        .btn-primary:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-primary:active {
            background: #1B4E86;
            border-color: #1B4E86;
            box-shadow: none;
            transform: translateY(0);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.875rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: 2px solid var(--primary);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .btn-outline:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(46, 111, 184, 0.15);
        }
        .btn-outline:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 16px;
            line-height: 1.4;
        }
        .badge-green {
            background: #E4F4EC;
            color: var(--accent-green);
        }
        .badge-orange {
            background: #FDF0E6;
            color: var(--accent-orange);
        }
        .badge-blue {
            background: var(--primary-light);
            color: var(--primary);
        }

        .card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary);
        }

        .language-pill {
            display: inline-flex;
            align-items: center;
            gap: 2px;
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: 20px;
            padding: 2px;
            height: 32px;
        }
        .language-pill button {
            border: none;
            background: none;
            padding: 4px 12px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 18px;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .language-pill button.active {
            background: var(--primary);
            color: #fff;
        }
        .language-pill button:not(.active):hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .topic-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            border-left: 4px solid var(--primary);
            padding: 24px;
            transition: all var(--transition-base);
            margin-bottom: 18px;
        }
        .topic-card:hover {
            border-left-color: var(--accent-orange);
            box-shadow: var(--shadow-card-hover);
        }
        .topic-card.trending {
            border-left-color: var(--accent-orange);
        }
        .topic-card.hot {
            border-left-color: var(--accent-green);
        }

        .member-avatar {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary);
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .footer-bg {
            background: var(--navy);
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-link {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }
        .footer-link:hover {
            color: #fff;
        }

        .accordion-item {
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            background: var(--card-bg);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .accordion-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card);
        }
        .accordion-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-main);
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            transition: all var(--transition-fast);
        }
        .accordion-question:hover {
            color: var(--primary);
        }
        .accordion-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            background: #F7FAFD;
        }
        .accordion-answer-inner {
            padding: 0 24px 20px;
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .accordion-item.open .accordion-answer {
            max-height: 400px;
        }
        .accordion-arrow {
            transition: transform 0.2s ease;
            flex-shrink: 0;
            color: var(--text-weak);
        }
        .accordion-item.open .accordion-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            color: var(--text-weak);
            padding: 12px 0;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .separator {
            color: var(--text-weak);
        }

        .desktop-nav {
            display: flex;
        }
        .mobile-menu {
            display: none;
        }

        @media (max-width: 1024px) {
            .desktop-nav {
                display: none;
            }
            .mobile-menu {
                display: block;
            }
            .language-pill {
                display: none;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }
            .section-pad {
                padding: 48px 0;
            }
            .section-pad-lg {
                padding: 60px 0;
            }
            .nav-link {
                font-size: 0.8rem;
            }
            .mobile-menu {
                display: block;
            }
            .language-pill {
                display: none;
            }
            .btn-primary {
                padding: 10px 20px;
                font-size: 0.8rem;
            }
            .btn-outline {
                padding: 10px 20px;
                font-size: 0.8rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 12px;
            }
            .section-pad {
                padding: 36px 0;
            }
            .section-pad-lg {
                padding: 44px 0;
            }
            .btn-primary {
                width: 100%;
                justify-content: center;
                padding: 12px 16px;
                font-size: 0.8rem;
            }
            .btn-outline {
                width: 100%;
                justify-content: center;
                padding: 12px 16px;
                font-size: 0.8rem;
            }
        }