/* roulang page: index */
:root {
            --primary: #1B5A8C;
            --primary-hover: #134673;
            --primary-bg: #E8F0F8;
            --secondary: #7A9BB5;
            --bg-white: #FFFFFF;
            --light-bg: #F5F8FC;
            --main-text: #1A2A3A;
            --sub-text: #4A5A6A;
            --weak-text: #7A8A9A;
            --border: #E2E8F0;
            --positive: #2D8A4E;
            --negative: #C0392B;
            --footer-bg: #1A2A3A;
            --card-shadow: 0 1px 3px rgba(26,42,58,0.06), 0 4px 12px rgba(26,42,58,0.08);
            --card-shadow-hover: 0 4px 8px rgba(26,42,58,0.10), 0 12px 24px rgba(26,42,58,0.12);
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-input: 6px;
            --radius-badge: 4px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-tap-highlight-color: transparent;
        }
        body {
            font-family: 'system-ui', '-apple-system', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            font-size: 15px;
            line-height: 1.7;
            color: var(--main-text);
            background-color: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
            border: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        .container-s {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-wide {
            max-width: 1440px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-pad {
            padding-top: 64px;
            padding-bottom: 64px;
        }
        @media (min-width: 768px) {
            .section-pad {
                padding-top: 72px;
                padding-bottom: 72px;
            }
        }
        @media (min-width: 1024px) {
            .section-pad {
                padding-top: 80px;
                padding-bottom: 80px;
            }
        }
        .nav-link {
            position: relative;
            font-size: 14px;
            color: var(--sub-text);
            font-weight: 500;
            padding: 8px 10px;
            border-radius: var(--radius-btn);
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
            background-color: var(--primary-bg);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 10px;
            right: 10px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px 2px 0 0;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.2s ease;
            display: inline-block;
            text-align: center;
            white-space: nowrap;
            border: 2px solid var(--primary);
        }
        .btn-primary:hover {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(1px);
        }
        .btn-primary:focus-visible {
            box-shadow: 0 0 0 3px rgba(27,90,140,0.15);
            outline: none;
        }
        .btn-secondary {
            background-color: #fff;
            color: var(--primary);
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.2s ease;
            display: inline-block;
            text-align: center;
            white-space: nowrap;
            border: 2px solid var(--primary);
        }
        .btn-secondary:hover {
            background-color: rgba(27,90,140,0.08);
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-secondary:active {
            transform: translateY(1px);
        }
        .btn-small {
            padding: 6px 14px;
            font-size: 12px;
            border-radius: var(--radius-badge);
            border-width: 1.5px;
        }
        .card-base {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--card-shadow);
            transition: all 0.2s ease;
        }
        .card-base:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-4px);
        }
        .tag-badge {
            display: inline-block;
            padding: 4px 10px;
            background-color: var(--primary-bg);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-badge);
            letter-spacing: 0.02em;
        }
        .date-badge {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: #fff;
            border: 1.5px solid var(--primary);
            color: var(--primary);
            border-radius: 6px;
            padding: 6px 10px;
            min-width: 70px;
            transition: all 0.2s ease;
            font-weight: 700;
            line-height: 1.2;
        }
        .date-badge .month {
            font-size: 13px;
            font-weight: 700;
            text-transform: uppercase;
        }
        .date-badge .day {
            font-size: 19px;
            font-weight: 700;
        }
        .date-badge-hover:hover {
            background-color: var(--primary);
            color: #fff;
        }
        .icon-circle {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background-color: var(--primary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .icon-circle svg {
            width: 24px;
            height: 24px;
            color: var(--primary);
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .h2-style {
            font-size: 24px;
            font-weight: 650;
            line-height: 1.4;
            color: var(--main-text);
            margin-bottom: 16px;
        }
        @media (min-width: 768px) {
            .h2-style {
                font-size: 28px;
            }
        }
        .h3-style {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--main-text);
            margin-bottom: 10px;
        }
        .body-copy {
            font-size: 15px;
            font-weight: 400;
            line-height: 1.8;
            color: var(--main-text);
            margin-bottom: 16px;
        }
        .sub-copy {
            font-size: 13px;
            font-weight: 400;
            line-height: 1.6;
            color: var(--sub-text);
        }
        .stat-number {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            letter-spacing: -0.02em;
        }
        @media (min-width: 768px) {
            .stat-number {
                font-size: 36px;
            }
        }
        .hero-visual {
            background-size: cover;
            background-position: center;
            position: relative;
            min-height: 400px;
            border-radius: var(--radius-card);
            overflow: hidden;
        }
        @media (max-width: 768px) {
            .hero-visual {
                min-height: 240px;
            }
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(27,90,140,0.35) 0%, rgba(27,90,140,0.08) 45%, rgba(27,90,140,0.02) 100%);
            pointer-events: none;
        }
        .hero-float-card {
            position: absolute;
            bottom: 20px;
            left: 20px;
            right: 20px;
            background: rgba(255,255,255,0.88);
            backdrop-filter: blur(6px);
            border-radius: 8px;
            padding: 14px 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--main-text);
            z-index: 2;
            border: 1px solid rgba(226,232,240,0.6);
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow 0.2s ease;
        }
        .faq-item:hover {
            box-shadow: var(--card-shadow);
        }
        .faq-question {
            font-size: 15px;
            font-weight: 600;
            color: var(--main-text);
            padding: 16px 20px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            user-select: none;
            gap: 16px;
            transition: color 0.2s ease;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            font-size: 18px;
            color: var(--primary);
            flex-shrink: 0;
            transition: transform 0.25s ease;
            font-weight: 700;
            line-height: 1;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            padding: 0 20px;
            font-size: 14px;
            font-weight: 400;
            line-height: 1.7;
            color: var(--sub-text);
            transition: max-height 0.3s ease, padding 0.3s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px 20px;
        }
        .form-card {
            background: #fff;
            border-radius: 12px;
            border: 1px solid var(--border);
            box-shadow: 0 8px 24px rgba(26,42,58,0.12);
            padding: 32px 40px;
        }
        @media (max-width: 768px) {
            .form-card {
                padding: 20px 24px;
            }
        }
        .form-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--sub-text);
            margin-bottom: 6px;
            display: block;
        }
        .form-input {
            width: 100%;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-input);
            padding: 10px 14px;
            font-size: 14px;
            color: var(--main-text);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .form-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(27,90,140,0.10);
        }
        .form-input::placeholder {
            color: var(--weak-text);
            font-size: 13px;
        }
        .footer-link {
            font-size: 13px;
            color: #B8C5D0;
            transition: color 0.2s ease;
            line-height: 1.8;
            display: inline-block;
        }
        .footer-link:hover {
            color: #fff;
        }
        .footer-title {
            font-size: 13px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }
        .nav-cta-btn {
            background-color: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 8px 16px;
            font-size: 12px;
            font-weight: 600;
            transition: background-color 0.2s ease;
            white-space: nowrap;
            border: 2px solid var(--primary);
        }
        .nav-cta-btn:hover {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #fff;
        }
        .mobile-menu {
            display: none;
        }
        @media (max-width: 768px) {
            .desktop-nav-links {
                display: none !important;
            }
            .mobile-menu {
                display: block;
            }
            .mobile-menu-panel {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 8px 20px rgba(26,42,58,0.08);
                z-index: 50;
                padding: 16px 24px;
                max-height: 70vh;
                overflow-y: auto;
            }
            .mobile-menu-panel.open {
                display: block;
            }
            .mobile-nav-link {
                display: block;
                padding: 10px 0;
                font-size: 15px;
                font-weight: 500;
                color: var(--main-text);
                border-bottom: 1px solid var(--border);
                transition: color 0.2s ease;
            }
            .mobile-nav-link:hover {
                color: var(--primary);
            }
            .mobile-nav-link:last-of-type {
                border-bottom: none;
            }
        }
        .explosion-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 3;
            background: var(--primary);
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            padding: 6px 12px;
            border-radius: 4px;
            letter-spacing: 0.03em;
            box-shadow: 0 2px 8px rgba(27,90,140,0.25);
        }
        .timeline-item {
            position: relative;
            padding-left: 32px;
            padding-bottom: 28px;
            border-left: 2px solid var(--border);
            margin-left: 8px;
        }
        .timeline-item:last-child {
            border-left-color: transparent;
            padding-bottom: 0;
        }
        .timeline-dot {
            position: absolute;
            left: -9px;
            top: 4px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid #fff;
            box-shadow: 0 0 0 2px var(--primary);
        }
        .progress-bar-bg {
            background: var(--border);
            border-radius: 999px;
            height: 8px;
            overflow: hidden;
        }
        .progress-bar-fill {
            background: var(--primary);
            border-radius: 999px;
            height: 100%;
            transition: width 0.6s ease;
        }
        .line-clamp-2 {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .info-list-item {
            cursor: pointer;
            padding: 10px 14px;
            border-radius: 6px;
            transition: all 0.2s ease;
            font-size: 15px;
            font-weight: 600;
            color: var(--sub-text);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .info-list-item:hover,
        .info-list-item.active {
            color: var(--primary);
            background-color: var(--primary-bg);
        }
        .info-list-item .info-num {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary-bg);
            -webkit-text-stroke: 1px var(--primary);
            min-width: 36px;
            text-align: center;
        }
        .info-list-item.active .info-num {
            color: var(--primary);
            -webkit-text-stroke: 0;
        }
        .search-icon-btn {
            color: var(--sub-text);
            transition: color 0.2s ease;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .search-icon-btn:hover {
            color: var(--primary);
        }
        .vs-badge {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: #fff;
            border: 2px solid var(--primary);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            z-index: 2;
            flex-shrink: 0;
            box-shadow: 0 2px 8px rgba(26,42,58,0.1);
        }

/* roulang page: category1 */
:root {
            --primary: #1B5A8C;
            --primary-hover: #134673;
            --primary-bg: #E8F0F8;
            --secondary: #7A9BB5;
            --bg-white: #FFFFFF;
            --light-bg: #F5F8FC;
            --main-text: #1A2A3A;
            --sub-text: #4A5A6A;
            --weak-text: #7A8A9A;
            --border: #E2E8F0;
            --positive: #2D8A4E;
            --negative: #C0392B;
            --footer-bg: #1A2A3A;
            --card-shadow: 0 1px 3px rgba(26,42,58,0.06), 0 4px 12px rgba(26,42,58,0.08);
            --card-shadow-hover: 0 4px 8px rgba(26,42,58,0.10), 0 12px 24px rgba(26,42,58,0.12);
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-input: 6px;
            --radius-badge: 4px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-tap-highlight-color: transparent;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 15px;
            line-height: 1.7;
            color: var(--main-text);
            background-color: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            padding-top: 52px;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
            border: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

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

        .container-wide {
            max-width: 1440px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-pad {
            padding-top: 64px;
            padding-bottom: 64px;
        }

        @media (min-width: 768px) {
            .section-pad {
                padding-top: 72px;
                padding-bottom: 72px;
            }
        }

        @media (min-width: 1024px) {
            .section-pad {
                padding-top: 80px;
                padding-bottom: 80px;
            }
        }

        .nav-link {
            position: relative;
            font-size: 14px;
            color: var(--sub-text);
            font-weight: 500;
            padding: 8px 10px;
            border-radius: var(--radius-btn);
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
            background-color: var(--primary-bg);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 10px;
            right: 10px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px 2px 0 0;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.2s ease;
            display: inline-block;
            text-align: center;
            white-space: nowrap;
            border: 2px solid var(--primary);
        }
        .btn-primary:hover {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(1px);
        }
        .btn-primary:focus-visible {
            box-shadow: 0 0 0 3px rgba(27,90,140,0.15);
            outline: none;
        }

        .btn-secondary {
            background-color: #fff;
            color: var(--primary);
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.2s ease;
            display: inline-block;
            text-align: center;
            white-space: nowrap;
            border: 2px solid var(--primary);
        }
        .btn-secondary:hover {
            background-color: rgba(27,90,140,0.08);
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-secondary:active {
            transform: translateY(1px);
        }

        .btn-small {
            padding: 6px 14px;
            font-size: 12px;
            border-radius: var(--radius-badge);
            border-width: 1.5px;
        }

        .card-base {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--card-shadow);
            transition: all 0.2s ease;
        }
        .card-base:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-4px);
        }

        .tag-badge {
            display: inline-block;
            padding: 4px 10px;
            background-color: var(--primary-bg);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-badge);
            letter-spacing: 0.02em;
        }

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

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .h2-title {
            font-size: 22px;
            font-weight: 650;
            line-height: 1.4;
            color: var(--main-text);
        }
        @media (min-width: 768px) {
            .h2-title {
                font-size: 24px;
            }
        }
        @media (min-width: 1024px) {
            .h2-title {
                font-size: 26px;
            }
        }

        .date-badge {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: #fff;
            border: 1.5px solid var(--primary);
            color: var(--primary);
            border-radius: 6px;
            padding: 6px 10px;
            min-width: 70px;
            transition: all 0.2s ease;
            font-weight: 700;
            line-height: 1.2;
        }
        .date-badge .month {
            font-size: 13px;
            font-weight: 700;
        }
        .date-badge .day {
            font-size: 19px;
            font-weight: 700;
        }
        .date-badge-hover:hover {
            background-color: var(--primary);
            color: #fff;
        }

        .search-icon-btn {
            color: var(--sub-text);
            transition: color 0.2s ease;
        }
        .search-icon-btn:hover {
            color: var(--primary);
        }

        .nav-cta-btn {
            background-color: var(--primary);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .nav-cta-btn:hover {
            background-color: var(--primary-hover);
            color: #fff;
        }

        .mobile-menu {
            display: flex;
            flex-direction: column;
            gap: 4px;
            padding: 8px;
        }
        @media (min-width: 768px) {
            .mobile-menu {
                display: none;
            }
        }

        .mobile-menu-panel {
            display: none;
            position: absolute;
            top: 52px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 16px 24px;
            flex-direction: column;
            gap: 4px;
            box-shadow: 0 8px 20px rgba(26,42,58,0.1);
            z-index: 50;
        }
        .mobile-menu-panel.open {
            display: flex;
        }

        @media (max-width: 767px) {
            .desktop-nav-links {
                display: none;
            }
            .nav-cta-btn {
                display: none;
            }
            .search-icon-btn {
                display: none;
            }
        }
        @media (min-width: 768px) {
            .mobile-menu-panel {
                display: none;
            }
        }

        .hero-breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--sub-text);
            margin-bottom: 12px;
        }
        .hero-breadcrumb a {
            color: var(--sub-text);
            transition: color 0.2s;
        }
        .hero-breadcrumb a:hover {
            color: var(--primary);
        }
        .hero-breadcrumb span {
            color: var(--weak-text);
        }

        .article-card-horizontal {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--card-shadow);
            overflow: hidden;
            transition: all 0.25s ease;
        }
        .article-card-horizontal:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-3px);
        }
        @media (min-width: 768px) {
            .article-card-horizontal {
                grid-template-columns: 280px 1fr;
                align-items: stretch;
            }
        }
        @media (min-width: 1024px) {
            .article-card-horizontal {
                grid-template-columns: 340px 1fr;
            }
        }

        .article-card-horizontal .card-image {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        @media (min-width: 768px) {
            .article-card-horizontal .card-image {
                height: 100%;
                min-height: 200px;
            }
        }

        .article-card-horizontal .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .article-card-horizontal:hover .card-image img {
            transform: scale(1.05);
        }

        .article-card-horizontal .card-content {
            padding: 20px 24px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .article-card-horizontal .article-title {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--main-text);
            transition: color 0.2s;
        }
        .article-card-horizontal:hover .article-title {
            color: var(--primary);
        }

        .article-card-horizontal .article-summary {
            font-size: 14px;
            line-height: 1.6;
            color: var(--sub-text);
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all 0.2s ease;
        }
        .faq-item:hover {
            border-color: var(--primary);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--main-text);
            transition: all 0.2s;
            user-select: none;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            color: var(--primary);
            font-size: 16px;
            font-weight: 700;
            transition: transform 0.25s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            padding: 0 20px;
            font-size: 14px;
            line-height: 1.7;
            color: var(--sub-text);
            transition: max-height 0.3s ease, padding 0.3s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px 20px;
        }

        .metric-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--card-shadow);
            padding: 20px 22px;
            text-align: center;
            transition: all 0.2s ease;
        }
        .metric-card:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-3px);
        }
        .metric-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            tabular-nums: numeric;
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .metric-label {
            font-size: 13px;
            color: var(--sub-text);
            font-weight: 500;
        }
        .metric-trend {
            font-size: 12px;
            font-weight: 600;
            margin-top: 4px;
        }
        .metric-trend.up {
            color: var(--positive);
        }
        .metric-trend.down {
            color: var(--negative);
        }

        .hero-overlay {
            background: linear-gradient(135deg, rgba(27,90,140,0.88) 0%, rgba(26,42,58,0.78) 100%);
        }

        .cta-card {
            background: #fff;
            border-radius: 12px;
            box-shadow: 0 8px 24px rgba(26,42,58,0.12);
            border: 1px solid var(--border);
            padding: 32px 40px;
            max-width: 700px;
            margin: 0 auto;
        }
        @media (max-width: 767px) {
            .cta-card {
                padding: 20px 24px;
            }
        }

        .form-input {
            width: 100%;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-input);
            padding: 10px 14px;
            font-size: 14px;
            transition: all 0.2s ease;
        }
        .form-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(27,90,140,0.10);
        }
        .form-label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--sub-text);
            margin-bottom: 6px;
        }

        .tag-cloud-link {
            display: inline-block;
            padding: 6px 14px;
            background-color: var(--primary-bg);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            border-radius: 20px;
            transition: all 0.2s ease;
        }
        .tag-cloud-link:hover {
            background-color: var(--primary);
            color: #fff;
        }

        .stats-bar {
            background: var(--light-bg);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }
        @media (min-width: 768px) {
            .stats-bar {
                grid-template-columns: repeat(4, 1fr);
                gap: 16px;
            }
        }
        .stats-bar-item {
            text-align: center;
        }
        .stats-bar-item .stat-num {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .stats-bar-item .stat-label {
            font-size: 12px;
            color: var(--sub-text);
            margin-top: 2px;
        }

        .focus-visible:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

/* roulang page: category2 */
:root {
            --primary: #1B5A8C;
            --primary-hover: #134673;
            --primary-bg: #E8F0F8;
            --secondary: #7A9BB5;
            --bg-white: #FFFFFF;
            --light-bg: #F5F8FC;
            --main-text: #1A2A3A;
            --sub-text: #4A5A6A;
            --weak-text: #7A8A9A;
            --border: #E2E8F0;
            --positive: #2D8A4E;
            --negative: #C0392B;
            --footer-bg: #1A2A3A;
            --card-shadow: 0 1px 3px rgba(26,42,58,0.06), 0 4px 12px rgba(26,42,58,0.08);
            --card-shadow-hover: 0 4px 8px rgba(26,42,58,0.10), 0 12px 24px rgba(26,42,58,0.12);
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-input: 6px;
            --radius-badge: 4px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-tap-highlight-color: transparent;
        }
        body {
            font-family: 'system-ui', '-apple-system', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            font-size: 15px;
            line-height: 1.7;
            color: var(--main-text);
            background-color: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
            border: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        .container-s {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-wide {
            max-width: 1440px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-pad {
            padding-top: 72px;
            padding-bottom: 72px;
        }
        .section-pad-sm {
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.2s ease;
            display: inline-block;
            text-align: center;
            white-space: nowrap;
            border: 2px solid var(--primary);
            cursor: pointer;
        }
        .btn-primary:hover {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(1px);
        }
        .btn-primary:focus-visible {
            box-shadow: 0 0 0 3px rgba(27,90,140,0.15);
            outline: none;
        }
        .btn-secondary {
            background-color: #fff;
            color: var(--primary);
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.2s ease;
            display: inline-block;
            text-align: center;
            white-space: nowrap;
            border: 2px solid var(--primary);
            cursor: pointer;
        }
        .btn-secondary:hover {
            background-color: rgba(27,90,140,0.08);
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-secondary:active {
            transform: translateY(1px);
        }
        .btn-small {
            padding: 6px 14px;
            font-size: 12px;
            border-radius: var(--radius-badge);
            border-width: 1.5px;
        }
        .card-base {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--card-shadow);
            transition: all 0.2s ease;
        }
        .card-base:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-4px);
        }
        .tag-badge {
            display: inline-block;
            padding: 4px 10px;
            background-color: var(--primary-bg);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-badge);
            letter-spacing: 0.02em;
            white-space: nowrap;
            cursor: pointer;
            transition: all 0.2s ease;
            border: 1px solid transparent;
        }
        .tag-badge:hover {
            background-color: #d6e4f0;
        }
        .tag-badge.active {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .date-badge {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: #fff;
            border: 1.5px solid var(--primary);
            color: var(--primary);
            border-radius: 6px;
            padding: 6px 10px;
            min-width: 70px;
            transition: all 0.2s ease;
            font-weight: 700;
            line-height: 1.2;
        }
        .date-badge .month {
            font-size: 13px;
            font-weight: 700;
        }
        .date-badge .day {
            font-size: 19px;
            font-weight: 700;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-bg);
            padding: 4px 12px;
            border-radius: 999px;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }
        .nav-link {
            position: relative;
            font-size: 14px;
            color: var(--sub-text);
            font-weight: 500;
            padding: 8px 10px;
            border-radius: var(--radius-btn);
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
            background-color: var(--primary-bg);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 10px;
            right: 10px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px 2px 0 0;
        }
        .search-icon-btn {
            padding: 8px;
            border-radius: 50%;
            color: var(--sub-text);
            transition: all 0.2s ease;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .search-icon-btn:hover {
            color: var(--primary);
            background-color: var(--primary-bg);
        }
        .nav-cta-btn {
            background-color: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 8px 16px;
            font-size: 13px;
            font-weight: 600;
            white-space: nowrap;
            transition: all 0.2s ease;
            display: inline-block;
        }
        .nav-cta-btn:hover {
            background-color: var(--primary-hover);
            color: #fff;
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 8px;
            border-radius: 6px;
            transition: background-color 0.2s ease;
        }
        .mobile-menu:hover {
            background-color: var(--primary-bg);
        }
        .mobile-menu span {
            display: block;
            width: 20px;
            height: 2px;
            background-color: var(--main-text);
            border-radius: 999px;
            transition: all 0.2s ease;
        }
        .mobile-menu-panel {
            display: none;
            position: fixed;
            top: 52px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 12px 24px rgba(26,42,58,0.10);
            z-index: 39;
            padding: 16px 24px 24px;
            max-height: calc(100vh - 52px);
            overflow-y: auto;
        }
        .mobile-menu-panel.open {
            display: block;
        }
        .mobile-nav-link {
            display: block;
            padding: 12px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--main-text);
            border-radius: 6px;
            transition: all 0.2s ease;
        }
        .mobile-nav-link:hover {
            background-color: var(--primary-bg);
            color: var(--primary);
        }
        .mobile-nav-link.active {
            background-color: var(--primary-bg);
            color: var(--primary);
            font-weight: 600;
        }
        .filter-scroll {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--secondary) transparent;
            padding-bottom: 4px;
        }
        .filter-scroll::-webkit-scrollbar {
            height: 4px;
        }
        .filter-scroll::-webkit-scrollbar-thumb {
            background-color: var(--secondary);
            border-radius: 999px;
        }
        .filter-scroll::-webkit-scrollbar-track {
            background: transparent;
        }
        .trend-up {
            color: var(--positive);
            font-weight: 600;
        }
        .trend-down {
            color: var(--negative);
            font-weight: 600;
        }
        .breadcrumb-link {
            font-size: 13px;
            color: var(--weak-text);
            transition: color 0.2s ease;
        }
        .breadcrumb-link:hover {
            color: var(--primary);
        }
        .breadcrumb-current {
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
        }
        .article-card-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .article-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(27,90,140,0.3);
        }
        .article-card-thumb {
            height: 180px;
            overflow: hidden;
        }
        .article-card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .article-card:hover .article-card-thumb img {
            transform: scale(1.05);
        }
        .article-card-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .hero-compact {
            background: linear-gradient(135deg, #F5F8FC 0%, #FFFFFF 55%, #E8F0F8 100%);
            border-bottom: 1px solid var(--border);
        }
        .stat-dot {
            display: inline-block;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            margin-right: 6px;
            vertical-align: middle;
        }
        .stat-dot.green {
            background-color: var(--positive);
        }
        .stat-dot.blue {
            background-color: var(--primary);
        }
        .stat-dot.gray {
            background-color: var(--secondary);
        }

/* roulang page: category3 */
:root {
            --primary: #1B5A8C;
            --primary-hover: #134673;
            --primary-bg: #E8F0F8;
            --secondary: #7A9BB5;
            --bg-white: #FFFFFF;
            --light-bg: #F5F8FC;
            --main-text: #1A2A3A;
            --sub-text: #4A5A6A;
            --weak-text: #7A8A9A;
            --border: #E2E8F0;
            --positive: #2D8A4E;
            --negative: #C0392B;
            --footer-bg: #1A2A3A;
            --card-shadow: 0 1px 3px rgba(26,42,58,0.06), 0 4px 12px rgba(26,42,58,0.08);
            --card-shadow-hover: 0 4px 8px rgba(26,42,58,0.10), 0 12px 24px rgba(26,42,58,0.12);
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-input: 6px;
            --radius-badge: 4px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-tap-highlight-color: transparent;
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 15px;
            line-height: 1.7;
            color: var(--main-text);
            background-color: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            padding-top: 52px;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
            border: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        .container-s {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-wide {
            max-width: 1440px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-pad {
            padding-top: 64px;
            padding-bottom: 64px;
        }
        .nav-link {
            position: relative;
            font-size: 14px;
            color: var(--sub-text);
            font-weight: 500;
            padding: 8px 10px;
            border-radius: var(--radius-btn);
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
            background-color: var(--primary-bg);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 10px;
            right: 10px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px 2px 0 0;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.2s ease;
            display: inline-block;
            text-align: center;
            white-space: nowrap;
            border: 2px solid var(--primary);
        }
        .btn-primary:hover {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(1px);
        }
        .btn-primary:focus-visible {
            box-shadow: 0 0 0 3px rgba(27,90,140,0.15);
            outline: none;
        }
        .btn-secondary {
            background-color: #fff;
            color: var(--primary);
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.2s ease;
            display: inline-block;
            text-align: center;
            white-space: nowrap;
            border: 2px solid var(--primary);
        }
        .btn-secondary:hover {
            background-color: rgba(27,90,140,0.08);
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-secondary:active {
            transform: translateY(1px);
        }
        .btn-small {
            padding: 6px 14px;
            font-size: 12px;
            border-radius: var(--radius-badge);
            border-width: 1.5px;
        }
        .card-base {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--card-shadow);
            transition: all 0.2s ease;
        }
        .card-base:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-4px);
        }
        .tag-badge {
            display: inline-block;
            padding: 4px 10px;
            background-color: var(--primary-bg);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-badge);
            letter-spacing: 0.02em;
        }
        .date-badge {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: #fff;
            border: 1.5px solid var(--primary);
            color: var(--primary);
            border-radius: 6px;
            padding: 6px 10px;
            min-width: 70px;
            transition: all 0.2s ease;
            font-weight: 700;
            line-height: 1.2;
        }
        .date-badge .month {
            font-size: 13px;
            font-weight: 700;
            text-transform: uppercase;
        }
        .date-badge .day {
            font-size: 19px;
            font-weight: 700;
        }
        .date-badge-hover:hover {
            background-color: var(--primary);
            color: #fff;
        }
        .section-label {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background-color: var(--primary-bg);
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }
        .search-icon-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            color: var(--sub-text);
            transition: all 0.2s ease;
        }
        .search-icon-btn:hover {
            color: var(--primary);
            background-color: var(--primary-bg);
        }
        .nav-cta-btn {
            background-color: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 6px 16px;
            font-size: 12px;
            font-weight: 600;
            transition: all 0.2s ease;
            white-space: nowrap;
            border: 1.5px solid var(--primary);
        }
        .nav-cta-btn:hover {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #fff;
        }
        .mobile-menu {
            display: none;
        }
        .mobile-menu-panel {
            display: none;
        }
        .desktop-nav-links {
            display: flex;
        }
        @media (max-width: 1023px) {
            .desktop-nav-links {
                display: none;
            }
            .mobile-menu {
                display: flex;
            }
        }
        .mobile-menu-panel.open {
            display: flex;
            flex-direction: column;
            position: absolute;
            top: 52px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--card-shadow);
            padding: 16px 24px;
            gap: 4px;
            z-index: 50;
            animation: fadeSlideDown 0.2s ease;
        }
        @keyframes fadeSlideDown {
            from { opacity: 0; transform: translateY(-8px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .mobile-menu-panel a {
            display: block;
            padding: 10px 12px;
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            color: var(--sub-text);
            transition: all 0.2s ease;
        }
        .mobile-menu-panel a:hover {
            color: var(--primary);
            background-color: var(--primary-bg);
        }
        .mobile-menu-panel a.active {
            color: var(--primary);
            font-weight: 600;
            background-color: var(--primary-bg);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--weak-text);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--sub-text);
            transition: color 0.2s ease;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--border);
            user-select: none;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }
        .hero-ctg {
            background-color: var(--light-bg);
            border-bottom: 1px solid var(--border);
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .hero-ctg h1 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--main-text);
            margin-bottom: 12px;
        }
        .hero-ctg p {
            font-size: 15px;
            line-height: 1.7;
            color: var(--sub-text);
            max-width: 720px;
        }
        .report-list-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border);
            transition: all 0.2s ease;
            border-radius: 8px;
        }
        .report-list-item:hover {
            background-color: var(--light-bg);
            padding-left: 12px;
            padding-right: 12px;
        }
        .report-list-item .date-badge {
            flex-shrink: 0;
            margin-top: 2px;
        }
        .report-list-item:hover .date-badge {
            background-color: var(--primary);
            color: #fff;
        }
        .report-list-item .content {
            flex: 1;
            min-width: 0;
        }
        .report-list-item .title {
            font-size: 15px;
            font-weight: 600;
            color: var(--main-text);
            margin-bottom: 4px;
            transition: color 0.2s ease;
            line-height: 1.5;
        }
        .report-list-item:hover .title {
            color: var(--primary);
        }
        .report-list-item .summary {
            font-size: 13px;
            color: var(--sub-text);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 6px;
        }
        .report-list-item .read-more {
            font-size: 12px;
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all 0.2s ease;
        }
        .report-list-item .read-more:hover {
            color: var(--primary-hover);
            gap: 8px;
        }
        .recommend-card {
            display: flex;
            flex-direction: column;
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all 0.2s ease;
            box-shadow: var(--card-shadow);
        }
        .recommend-card:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-3px);
        }
        .recommend-card .img-wrap {
            aspect-ratio: 16/9;
            overflow: hidden;
            background-color: var(--primary-bg);
        }
        .recommend-card .img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .recommend-card:hover .img-wrap img {
            transform: scale(1.03);
        }
        .recommend-card .rc-title {
            padding: 12px 14px;
            font-size: 13px;
            font-weight: 600;
            color: var(--main-text);
            line-height: 1.5;
            transition: color 0.2s ease;
        }
        .recommend-card:hover .rc-title {
            color: var(--primary);
        }
        .metric-card {
            background: #fff;
            border-radius: 10px;
            padding: 24px 28px;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--border);
        }
        .metric-card .metric-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
            margin-bottom: 6px;
        }
        .metric-card .metric-label {
            font-size: 13px;
            color: var(--sub-text);
            margin-bottom: 6px;
        }
        .metric-card .metric-trend {
            font-size: 12px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .metric-trend.up {
            color: var(--positive);
        }
        .metric-trend.down {
            color: var(--negative);
        }
        .benefit-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 24px;
            transition: all 0.2s ease;
            box-shadow: var(--card-shadow);
        }
        .benefit-card:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-4px);
        }
        .benefit-card .icon-circle {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background-color: var(--primary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 14px;
            color: var(--primary);
            font-size: 20px;
            font-weight: 700;
        }
        .benefit-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--main-text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .benefit-card p {
            font-size: 13px;
            color: var(--sub-text);
            line-height: 1.6;
        }
        .step-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 16px 0;
            border-bottom: 1px dashed var(--border);
        }
        .step-item:last-child {
            border-bottom: none;
        }
        .step-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 2px;
        }
        .step-content h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--main-text);
            margin-bottom: 4px;
        }
        .step-content p {
            font-size: 13px;
            color: var(--sub-text);
            line-height: 1.6;
        }
        .faq-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all 0.2s ease;
        }
        .faq-question {
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--main-text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
            transition: all 0.2s ease;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            color: var(--primary);
            transition: transform 0.25s ease;
            font-size: 16px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .faq-card.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 20px 16px 20px;
            font-size: 14px;
            color: var(--sub-text);
            line-height: 1.7;
            display: none;
        }
        .faq-card.open .faq-answer {
            display: block;
        }
        .cta-form-card {
            background: #fff;
            border-radius: 12px;
            border: 1px solid var(--border);
            box-shadow: 0 8px 24px rgba(26,42,58,0.12);
            padding: 32px 40px;
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-form-card label {
            font-size: 13px;
            font-weight: 600;
            color: var(--sub-text);
            margin-bottom: 6px;
            display: block;
        }
        .cta-form-card input,
        .cta-form-card textarea {
            width: 100%;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-input);
            padding: 10px 14px;
            font-size: 14px;
            color: var(--main-text);
            transition: all 0.2s ease;
            margin-bottom: 16px;
            box-sizing: border-box;
        }
        .cta-form-card input:focus,
        .cta-form-card textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(27,90,140,0.10);
        }
        .cta-form-card textarea {
            resize: vertical;
            min-height: 72px;
        }
        .deep-content-text {
            font-size: 15px;
            line-height: 1.8;
            color: var(--main-text);
        }
        .deep-content-text p {
            margin-bottom: 16px;
        }
        .deep-content-text h2 {
            font-size: 22px;
            font-weight: 650;
            line-height: 1.4;
            color: var(--main-text);
            margin-bottom: 12px;
        }
        .deep-content-text h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--main-text);
            margin-bottom: 10px;
        }
        .footer-link-title {
            font-size: 13px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-link {
            font-size: 13px;
            color: #B8C5D0;
            transition: color 0.2s ease;
            display: inline-block;
        }
        .footer-link:hover {
            color: #fff;
        }
        @media (max-width: 767px) {
            .hero-ctg {
                padding-top: 32px;
                padding-bottom: 32px;
            }
            .hero-ctg h1 {
                font-size: 24px;
            }
            .section-pad {
                padding-top: 40px;
                padding-bottom: 40px;
            }
            .cta-form-card {
                padding: 20px 24px;
            }
            .metric-card .metric-number {
                font-size: 28px;
            }
            .report-list-item {
                flex-direction: column;
                gap: 10px;
            }
            .report-list-item .date-badge {
                min-width: 60px;
            }
            .date-badge .day {
                font-size: 17px;
            }
            .date-badge .month {
                font-size: 12px;
            }
        }
        @media (min-width: 768px) and (max-width: 1023px) {
            .hero-ctg h1 {
                font-size: 26px;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #1B5A8C;
            --primary-hover: #134673;
            --primary-bg: #E8F0F8;
            --secondary: #7A9BB5;
            --bg-white: #FFFFFF;
            --light-bg: #F5F8FC;
            --main-text: #1A2A3A;
            --sub-text: #4A5A6A;
            --weak-text: #7A8A9A;
            --border: #E2E8F0;
            --positive: #2D8A4E;
            --negative: #C0392B;
            --footer-bg: #1A2A3A;
            --card-shadow: 0 1px 3px rgba(26,42,58,0.06), 0 4px 12px rgba(26,42,58,0.08);
            --card-shadow-hover: 0 4px 8px rgba(26,42,58,0.10), 0 12px 24px rgba(26,42,58,0.12);
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-input: 6px;
            --radius-badge: 4px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-tap-highlight-color: transparent;
        }
        body {
            font-family: 'system-ui', '-apple-system', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            font-size: 15px;
            line-height: 1.7;
            color: var(--main-text);
            background-color: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
            border: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        .container-s {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-wide {
            max-width: 1440px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-pad {
            padding-top: 64px;
            padding-bottom: 64px;
        }
        .nav-link {
            position: relative;
            font-size: 14px;
            color: var(--sub-text);
            font-weight: 500;
            padding: 8px 10px;
            border-radius: var(--radius-btn);
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
            background-color: var(--primary-bg);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 10px;
            right: 10px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px 2px 0 0;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.2s ease;
            display: inline-block;
            text-align: center;
            white-space: nowrap;
            border: 2px solid var(--primary);
        }
        .btn-primary:hover {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(1px);
        }
        .btn-primary:focus-visible {
            box-shadow: 0 0 0 3px rgba(27,90,140,0.15);
            outline: none;
        }
        .btn-secondary {
            background-color: #fff;
            color: var(--primary);
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.2s ease;
            display: inline-block;
            text-align: center;
            white-space: nowrap;
            border: 2px solid var(--primary);
        }
        .btn-secondary:hover {
            background-color: rgba(27,90,140,0.08);
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-secondary:active {
            transform: translateY(1px);
        }
        .btn-small {
            padding: 6px 14px;
            font-size: 12px;
            border-radius: var(--radius-badge);
            border-width: 1.5px;
        }
        .card-base {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--card-shadow);
            transition: all 0.2s ease;
        }
        .card-base:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-4px);
        }
        .tag-badge {
            display: inline-block;
            padding: 4px 10px;
            background-color: var(--primary-bg);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-badge);
            letter-spacing: 0.02em;
        }
        .tag-filter-active {
            background-color: var(--primary);
            color: #fff;
        }
        .date-badge {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: #fff;
            border: 1.5px solid var(--primary);
            color: var(--primary);
            border-radius: 6px;
            padding: 6px 10px;
            min-width: 70px;
            transition: all 0.2s ease;
            font-weight: 700;
            line-height: 1.2;
        }
        .date-badge .month {
            font-size: 13px;
            font-weight: 700;
        }
        .date-badge .day {
            font-size: 19px;
            font-weight: 700;
        }
        .date-badge-hover:hover {
            background-color: var(--primary);
            color: #fff;
        }
        .breadcrumb-link {
            font-size: 13px;
            color: var(--sub-text);
            transition: color 0.2s ease;
        }
        .breadcrumb-link:hover {
            color: var(--primary);
        }
        .breadcrumb-current {
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
        }
        .filter-chip {
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            color: var(--sub-text);
            background-color: #fff;
            border: 1px solid var(--border);
            transition: all 0.2s ease;
            white-space: nowrap;
            cursor: pointer;
        }
        .filter-chip:hover {
            color: var(--primary);
            background-color: var(--primary-bg);
            border-color: var(--primary);
        }
        .filter-chip.active {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .pagination-btn {
            width: 38px;
            height: 38px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            color: var(--sub-text);
            background-color: #fff;
            border: 1px solid var(--border);
            transition: all 0.2s ease;
        }
        .pagination-btn:hover {
            color: var(--primary);
            background-color: var(--primary-bg);
            border-color: var(--primary);
        }
        .pagination-btn.active {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .pagination-btn.disabled {
            opacity: 0.5;
            cursor: not-allowed;
            pointer-events: none;
        }
        .archive-img-card {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-card);
        }
        .archive-img-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .archive-img-card:hover img {
            transform: scale(1.04);
        }
        .archive-img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(26,42,58,0.7) 100%);
            display: flex;
            align-items: flex-end;
            padding: 20px;
            border-radius: var(--radius-card);
        }
        .mobile-menu-panel {
            display: none;
            position: absolute;
            top: 52px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 12px 24px rgba(26,42,58,0.12);
            padding: 16px 24px;
            z-index: 50;
        }
        .mobile-menu-panel.open {
            display: block;
        }
        .desktop-nav-links {
            display: flex;
        }
        @media (max-width: 1024px) {
            .desktop-nav-links {
                display: none;
            }
        }
        @media (min-width: 1025px) {
            .mobile-menu {
                display: none;
            }
        }
        @media (max-width: 768px) {
            .section-pad {
                padding-top: 48px;
                padding-bottom: 48px;
            }
            .container-s, .container-wide {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        @media (max-width: 400px) {
            .container-s, .container-wide {
                padding-left: 12px;
                padding-right: 12px;
            }
            .date-badge {
                min-width: 56px;
                padding: 4px 8px;
            }
            .date-badge .day {
                font-size: 16px;
            }
        }
        .grid-mix {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 20px;
        }
        .grid-mix-reverse {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 20px;
        }
        @media (max-width: 768px) {
            .grid-mix, .grid-mix-reverse {
                grid-template-columns: 1fr;
            }
        }
        .scrollbar-hide {
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .scrollbar-hide::-webkit-scrollbar {
            display: none;
        }
        .section-rule {
            border-top: 1px solid var(--border);
        }

/* roulang page: category4 */
:root {
            --primary: #1B5A8C;
            --primary-hover: #134673;
            --primary-bg: #E8F0F8;
            --secondary: #7A9BB5;
            --bg-white: #FFFFFF;
            --light-bg: #F5F8FC;
            --main-text: #1A2A3A;
            --sub-text: #4A5A6A;
            --weak-text: #7A8A9A;
            --border: #E2E8F0;
            --positive: #2D8A4E;
            --negative: #C0392B;
            --footer-bg: #1A2A3A;
            --card-shadow: 0 1px 3px rgba(26,42,58,0.06), 0 4px 12px rgba(26,42,58,0.08);
            --card-shadow-hover: 0 4px 8px rgba(26,42,58,0.10), 0 12px 24px rgba(26,42,58,0.12);
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-input: 6px;
            --radius-badge: 4px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-tap-highlight-color: transparent;
        }
        body {
            font-family: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            font-size: 15px;
            line-height: 1.7;
            color: var(--main-text);
            background-color: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
            border: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        .container-s {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-wide {
            max-width: 1440px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-pad {
            padding-top: 72px;
            padding-bottom: 72px;
        }
        .nav-link {
            position: relative;
            font-size: 14px;
            color: var(--sub-text);
            font-weight: 500;
            padding: 8px 10px;
            border-radius: var(--radius-btn);
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
            background-color: var(--primary-bg);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 10px;
            right: 10px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px 2px 0 0;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.2s ease;
            display: inline-block;
            text-align: center;
            white-space: nowrap;
            border: 2px solid var(--primary);
        }
        .btn-primary:hover {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(1px);
        }
        .btn-primary:focus-visible {
            box-shadow: 0 0 0 3px rgba(27,90,140,0.15);
            outline: none;
        }
        .btn-secondary {
            background-color: #fff;
            color: var(--primary);
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.2s ease;
            display: inline-block;
            text-align: center;
            white-space: nowrap;
            border: 2px solid var(--primary);
        }
        .btn-secondary:hover {
            background-color: rgba(27,90,140,0.08);
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-secondary:active {
            transform: translateY(1px);
        }
        .btn-small {
            padding: 6px 14px;
            font-size: 12px;
            border-radius: var(--radius-badge);
            border-width: 1.5px;
        }
        .card-base {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--card-shadow);
            transition: all 0.2s ease;
        }
        .card-base:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-4px);
        }
        .tag-badge {
            display: inline-block;
            padding: 4px 10px;
            background-color: var(--primary-bg);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-badge);
            letter-spacing: 0.02em;
        }
        .date-badge {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: #fff;
            border: 1.5px solid var(--primary);
            color: var(--primary);
            border-radius: 6px;
            padding: 6px 10px;
            min-width: 70px;
            transition: all 0.2s ease;
            font-weight: 700;
            line-height: 1.2;
        }
        .date-badge .month {
            font-size: 13px;
            font-weight: 700;
        }
        .date-badge .day {
            font-size: 19px;
            font-weight: 700;
        }
        .search-icon-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            color: var(--sub-text);
            transition: all 0.2s ease;
        }
        .search-icon-btn:hover {
            color: var(--primary);
            background-color: var(--primary-bg);
        }
        .nav-cta-btn {
            background-color: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 8px 16px;
            font-size: 13px;
            font-weight: 600;
            transition: all 0.2s ease;
            white-space: nowrap;
            border: 2px solid var(--primary);
        }
        .nav-cta-btn:hover {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #fff;
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 8px;
            border-radius: 6px;
            transition: all 0.2s ease;
        }
        .mobile-menu:hover {
            background-color: var(--primary-bg);
        }
        .mobile-menu-panel {
            display: none;
            position: absolute;
            top: 52px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--card-shadow-hover);
            padding: 16px 24px;
            z-index: 50;
        }
        .mobile-menu-panel.open {
            display: block;
        }
        .mobile-menu-panel a {
            display: block;
            padding: 10px 0;
            font-size: 14px;
            color: var(--sub-text);
            border-bottom: 1px solid var(--border);
        }
        .mobile-menu-panel a:last-child {
            border-bottom: none;
        }
        .mobile-menu-panel a:hover,
        .mobile-menu-panel a.active {
            color: var(--primary);
        }
        @media (max-width: 768px) {
            .desktop-nav-links {
                display: none !important;
            }
            .mobile-menu {
                display: flex;
            }
            .nav-cta-btn {
                display: none;
            }
            .search-icon-btn {
                display: none;
            }
        }
        @media (min-width: 769px) {
            .mobile-menu-panel {
                display: none !important;
            }
        }
        .breadcrumb-link {
            font-size: 13px;
            color: var(--sub-text);
            transition: color 0.2s ease;
        }
        .breadcrumb-link:hover {
            color: var(--primary);
        }
        .timeline-line {
            position: absolute;
            left: 19px;
            top: 0;
            bottom: 0;
            width: 2px;
            background-color: var(--border);
        }
        .timeline-dot {
            position: absolute;
            left: 12px;
            top: 4px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background-color: var(--primary);
            border: 3px solid #fff;
            box-shadow: 0 0 0 2px var(--primary);
        }
        .hero-overlay {
            background: linear-gradient(135deg, rgba(26,42,58,0.65) 0%, rgba(27,90,140,0.35) 100%);
        }
        .focus-ring:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .timeline-item {
            position: relative;
            padding-left: 52px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: 12px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background-color: var(--primary);
            border: 3px solid #fff;
            box-shadow: 0 0 0 2px var(--primary);
            z-index: 2;
        }
        .timeline-item::after {
            content: '';
            position: absolute;
            left: 18.5px;
            top: 24px;
            bottom: -24px;
            width: 2px;
            background-color: var(--border);
            z-index: 1;
        }
        .timeline-item:last-child::after {
            display: none;
        }
        .promo-banner {
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
        }
        .stat-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--card-shadow);
            padding: 24px 20px;
            text-align: center;
            transition: all 0.2s ease;
        }
        .stat-card:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }
        .stat-label {
            font-size: 13px;
            color: var(--sub-text);
            margin-top: 6px;
        }
        .divider-light {
            border-top: 1px solid var(--border);
        }
        .cover-img {
            border-radius: var(--radius-card);
            object-fit: cover;
        }

/* roulang page: category5 */
:root {
            --primary: #1B5A8C;
            --primary-hover: #134673;
            --primary-bg: #E8F0F8;
            --secondary: #7A9BB5;
            --bg-white: #FFFFFF;
            --light-bg: #F5F8FC;
            --main-text: #1A2A3A;
            --sub-text: #4A5A6A;
            --weak-text: #7A8A9A;
            --border: #E2E8F0;
            --positive: #2D8A4E;
            --negative: #C0392B;
            --footer-bg: #1A2A3A;
            --card-shadow: 0 1px 3px rgba(26, 42, 58, 0.06), 0 4px 12px rgba(26, 42, 58, 0.08);
            --card-shadow-hover: 0 4px 8px rgba(26, 42, 58, 0.10), 0 12px 24px rgba(26, 42, 58, 0.12);
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-input: 6px;
            --radius-badge: 4px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-tap-highlight-color: transparent;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 15px;
            line-height: 1.7;
            color: var(--main-text);
            background-color: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
            border: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

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

        .container-wide {
            max-width: 1440px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-pad {
            padding-top: 72px;
            padding-bottom: 72px;
        }

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

        .nav-link {
            position: relative;
            font-size: 14px;
            color: var(--sub-text);
            font-weight: 500;
            padding: 8px 10px;
            border-radius: var(--radius-btn);
            transition: all 0.2s ease;
            white-space: nowrap;
        }

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

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

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 10px;
            right: 10px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px 2px 0 0;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.2s ease;
            display: inline-block;
            text-align: center;
            white-space: nowrap;
            border: 2px solid var(--primary);
        }

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

        .btn-primary:active {
            transform: translateY(1px);
        }

        .btn-primary:focus-visible {
            box-shadow: 0 0 0 3px rgba(27, 90, 140, 0.15);
            outline: none;
        }

        .btn-secondary {
            background-color: #fff;
            color: var(--primary);
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.2s ease;
            display: inline-block;
            text-align: center;
            white-space: nowrap;
            border: 2px solid var(--primary);
        }

        .btn-secondary:hover {
            background-color: rgba(27, 90, 140, 0.08);
            border-color: var(--primary);
            color: var(--primary);
        }

        .btn-secondary:active {
            transform: translateY(1px);
        }

        .btn-small {
            padding: 6px 14px;
            font-size: 12px;
            border-radius: var(--radius-badge);
            border-width: 1.5px;
        }

        .card-base {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--card-shadow);
            transition: all 0.2s ease;
        }

        .card-base:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-3px);
        }

        .tag-badge {
            display: inline-block;
            padding: 4px 10px;
            background-color: var(--primary-bg);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-badge);
            letter-spacing: 0.02em;
        }

        .date-badge {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: #fff;
            border: 1.5px solid var(--primary);
            color: var(--primary);
            border-radius: 6px;
            padding: 4px 10px;
            min-width: 64px;
            transition: all 0.2s ease;
            font-weight: 700;
            line-height: 1.2;
            flex-shrink: 0;
        }

        .date-badge .month {
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
        }

        .date-badge .day {
            font-size: 18px;
            font-weight: 700;
        }

        .date-badge-hover:hover {
            background-color: var(--primary);
            color: #fff;
        }

        .icon-circle {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background-color: var(--primary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .sidebar-link {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 14px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            color: var(--sub-text);
            transition: all 0.2s ease;
            border-left: 3px solid transparent;
        }

        .sidebar-link:hover {
            color: var(--primary);
            background-color: var(--primary-bg);
            border-left-color: var(--primary);
        }

        .sidebar-link.active {
            color: var(--primary);
            background-color: var(--primary-bg);
            border-left-color: var(--primary);
            font-weight: 600;
        }

        .metric-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 20px;
            transition: all 0.2s ease;
        }

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

        .mobile-menu-panel {
            display: none;
            position: absolute;
            top: 52px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 12px 24px;
            z-index: 50;
            box-shadow: 0 8px 24px rgba(26, 42, 58, 0.12);
        }

        .mobile-menu-panel.open {
            display: block;
        }

        .mobile-menu-panel a {
            display: block;
            padding: 10px 0;
            font-size: 14px;
            color: var(--main-text);
            border-bottom: 1px solid #f0f3f6;
            transition: color 0.2s ease;
        }

        .mobile-menu-panel a:hover {
            color: var(--primary);
        }

        .mobile-menu-panel .btn-primary {
            margin-top: 12px;
            text-align: center;
            display: block;
        }

        .form-input {
            width: 100%;
            background-color: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-input);
            padding: 10px 14px;
            font-size: 14px;
            transition: all 0.2s ease;
            color: var(--main-text);
        }

        .form-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(27, 90, 140, 0.10);
        }

        .form-label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--sub-text);
            margin-bottom: 6px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--weak-text);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--primary);
            transition: color 0.2s ease;
        }

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

        .breadcrumb .separator {
            color: var(--weak-text);
            font-size: 12px;
        }

        .breadcrumb .current {
            color: var(--sub-text);
            font-weight: 500;
        }

        .search-icon-btn {
            padding: 8px;
            border-radius: var(--radius-btn);
            color: var(--sub-text);
            transition: all 0.2s ease;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .search-icon-btn:hover {
            color: var(--primary);
            background-color: var(--primary-bg);
        }

        .nav-cta-btn {
            display: inline-block;
            background-color: var(--primary);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 7px 14px;
            border-radius: var(--radius-btn);
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .nav-cta-btn:hover {
            background-color: var(--primary-hover);
            color: #fff;
        }

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

        @media (max-width: 1023px) {
            .desktop-nav-links {
                display: none;
            }
            .mobile-menu-panel {
                display: none;
            }
        }

        @media (min-width: 1024px) {
            .mobile-menu {
                display: none;
            }
        }

        @media (max-width: 767px) {
            .section-pad {
                padding-top: 48px;
                padding-bottom: 48px;
            }
            .section-pad-sm {
                padding-top: 32px;
                padding-bottom: 32px;
            }
            .container-s {
                padding: 0 16px;
            }
            .container-wide {
                padding: 0 16px;
            }
            .date-badge {
                min-width: 54px;
                padding: 3px 8px;
            }
            .date-badge .day {
                font-size: 16px;
            }
            .date-badge .month {
                font-size: 11px;
            }
        }

        @media (max-width: 400px) {
            .date-badge {
                min-width: 46px;
            }
            .date-badge .day {
                font-size: 14px;
            }
        }

        .breadcrumb-hero {
            background: linear-gradient(135deg, #f5f8fc 0%, #ffffff 100%);
            border-bottom: 1px solid var(--border);
        }

        .directory-nav {
            position: sticky;
            top: 72px;
        }

        @media (max-width: 1023px) {
            .directory-nav {
                position: static;
                top: auto;
            }
        }

        .anchor-scroll {
            scroll-margin-top: 72px;
        }