/* roulang page: index */
:root {
            --color-primary: #2B6CB0;
            --color-primary-deep: #1F5A96;
            --color-primary-dark: #1A4F82;
            --color-primary-light: #EBF3FA;
            --color-primary-lighter: #D5E5F5;
            --color-accent: #C9A86A;
            --color-accent-light: #F7F2E8;
            --color-ink: #1A202C;
            --color-secondary: #4A5568;
            --color-border: #E2E8F0;
            --color-bg-alt: #F7FAFC;
            --color-footer-bg: #1A365D;
            --color-footer-link: #A0AEC0;
            --radius-card: 10px;
            --radius-btn: 8px;
            --radius-pill: 20px;
            --shadow-card: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-card-hover: 0 8px 24px rgba(43,108,176,0.12), 0 2px 6px rgba(0,0,0,0.06);
            --shadow-focus: 0 0 0 3px rgba(43,108,176,0.2);
            --transition-base: 200ms ease;
            --font-sans: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            color: var(--color-ink);
            background-color: #FFFFFF;
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        a:hover {
            color: var(--color-primary-deep);
            text-decoration: underline;
            text-decoration-thickness: 2px;
            text-underline-offset: 3px;
        }

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

        button {
            cursor: pointer;
        }

        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }

        .container-narrow {
            max-width: 820px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }

        .container-form {
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }

        .section {
            padding-top: 88px;
            padding-bottom: 88px;
        }

        .section-tight {
            padding-top: 56px;
            padding-bottom: 56px;
        }

        .section-alt {
            background-color: var(--color-bg-alt);
        }

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

        .section-footer {
            background-color: var(--color-footer-bg);
            padding-top: 56px;
            padding-bottom: 28px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.5;
            transition: all var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
            border: 1px solid transparent;
        }

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

        .btn-primary:hover {
            background-color: var(--color-primary-deep);
            border-color: var(--color-primary-deep);
            box-shadow: 0 4px 12px rgba(43,108,176,0.3);
            text-decoration: none;
            color: #FFFFFF;
        }

        .btn-primary:active {
            background-color: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
        }

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

        .btn-secondary {
            background-color: transparent;
            color: var(--color-primary);
            border-color: var(--color-primary);
        }

        .btn-secondary:hover {
            background-color: var(--color-primary-light);
            border-color: var(--color-primary);
            text-decoration: none;
            color: var(--color-primary-deep);
        }

        .btn-secondary:active {
            background-color: var(--color-primary-lighter);
            border-color: var(--color-primary);
        }

        .btn-secondary:focus-visible {
            box-shadow: var(--shadow-focus);
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
        }

        .card {
            background-color: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: all var(--transition-base);
        }

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

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 500;
            line-height: 1.5;
            background-color: var(--color-primary-light);
            color: var(--color-primary);
        }

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

        .tag {
            display: inline-flex;
            align-items: center;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 400;
            background-color: var(--color-primary-light);
            color: var(--color-secondary);
            border: 1px solid var(--color-border);
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--color-ink);
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--color-secondary);
            line-height: 1.75;
            margin-bottom: 32px;
            max-width: 720px;
        }

        .nav-channel-link {
            position: relative;
            padding: 8px 4px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-secondary);
            transition: color var(--transition-base);
            white-space: nowrap;
        }

        .nav-channel-link:hover {
            color: var(--color-primary);
            text-decoration: none;
        }

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

        .nav-channel-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background-color: var(--color-primary);
            border-radius: 1px;
        }

        .footer-link {
            color: var(--color-footer-link);
            font-size: 13px;
            font-weight: 400;
            line-height: 1.6;
            display: block;
            padding: 4px 0;
            transition: color var(--transition-base);
        }

        .footer-link:hover {
            color: #FFFFFF;
            text-decoration: none;
        }

        .footer-heading {
            color: #FFFFFF;
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.5;
        }

        .input-field {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #CBD5E0;
            border-radius: var(--radius-btn);
            background-color: #FFFFFF;
            font-size: 15px;
            color: var(--color-ink);
            transition: all var(--transition-base);
            line-height: 1.5;
        }

        .input-field::placeholder {
            color: #A0AEC0;
        }

        .input-field:focus {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-focus);
            outline: none;
        }

        .input-label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-secondary);
            margin-bottom: 6px;
            line-height: 1.5;
        }

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

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-ink);
            cursor: pointer;
            text-align: left;
            line-height: 1.5;
            background: none;
            border: none;
            gap: 16px;
        }

        .faq-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            position: relative;
            transition: transform var(--transition-base);
        }

        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background-color: var(--color-primary);
            border-radius: 1px;
            top: 50%;
            left: 50%;
        }

        .faq-icon::before {
            width: 12px;
            height: 2px;
            transform: translate(-50%, -50%);
        }

        .faq-icon::after {
            width: 2px;
            height: 12px;
            transform: translate(-50%, -50%);
            transition: transform var(--transition-base);
        }

        .faq-item.open .faq-icon::after {
            transform: translate(-50%, -50%) rotate(90deg);
            opacity: 0;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 300ms ease;
        }

        .faq-item.open .faq-answer {
            max-height: 600px;
        }

        .faq-answer-content {
            padding: 0 24px 20px 24px;
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-secondary);
        }

        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 16px 0;
            border-bottom: 1px solid var(--color-border);
            transition: all var(--transition-base);
        }

        .news-item:last-child {
            border-bottom: none;
        }

        .news-item:hover {
            background-color: var(--color-primary-light);
            padding-left: 8px;
            border-radius: 4px;
        }

        .news-date {
            flex-shrink: 0;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent);
            padding-top: 2px;
            min-width: 80px;
        }

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

        .news-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-ink);
            line-height: 1.5;
            margin-bottom: 4px;
        }

        .news-summary {
            font-size: 13px;
            color: var(--color-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .metric-item {
            text-align: center;
            padding: 20px 16px;
        }

        .metric-number {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--color-primary);
        }

        .metric-number.accent {
            color: var(--color-accent);
        }

        .metric-unit {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-secondary);
            margin-left: 2px;
        }

        .metric-label {
            font-size: 14px;
            color: var(--color-secondary);
            margin-top: 4px;
            line-height: 1.5;
        }

        .timeline-item {
            position: relative;
            padding-left: 28px;
            padding-bottom: 28px;
            border-left: 2px solid var(--color-border);
        }

        .timeline-item:last-child {
            border-left-color: transparent;
        }

        .timeline-dot {
            position: absolute;
            left: -7px;
            top: 4px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: var(--color-primary);
            border: 2px solid #FFFFFF;
            box-shadow: 0 0 0 2px var(--color-primary);
        }

        .timeline-date {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent);
            margin-bottom: 4px;
        }

        .timeline-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-ink);
            margin-bottom: 6px;
        }

        .timeline-desc {
            font-size: 14px;
            color: var(--color-secondary);
            line-height: 1.7;
        }

        .hidden-scrollbar {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }

        .hidden-scrollbar::-webkit-scrollbar {
            display: none;
        }

        .hero-clip {
            clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 4rem));
        }

        .hero-clip-content {
            clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 4rem));
        }

        @media (max-width: 1024px) {
            .section {
                padding-top: 64px;
                padding-bottom: 64px;
            }
            .section-title {
                font-size: 24px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding-top: 56px;
                padding-bottom: 56px;
            }
            .section-title {
                font-size: 22px;
            }
            .metric-number {
                font-size: 28px;
            }
            .news-item {
                flex-direction: column;
                gap: 8px;
            }
            .news-date {
                min-width: auto;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-clip,
            .hero-clip-content {
                clip-path: none;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .container-narrow {
                padding-left: 16px;
                padding-right: 16px;
            }
            .container-form {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section {
                padding-top: 48px;
                padding-bottom: 48px;
            }
            .section-title {
                font-size: 20px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 14px;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 15px;
            }
            .metric-number {
                font-size: 24px;
            }
            .metric-item {
                padding: 12px 8px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .news-item {
                padding: 12px 0;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 15px;
            }
            .faq-answer-content {
                padding: 0 16px 16px 16px;
                font-size: 14px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *, *::before, *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #2B6CB0;
            --color-primary-deep: #1F5A96;
            --color-primary-dark: #1A4F82;
            --color-primary-light: #EBF3FA;
            --color-primary-lighter: #D5E5F5;
            --color-accent: #C9A86A;
            --color-accent-light: #F7F2E8;
            --color-ink: #1A202C;
            --color-secondary: #4A5568;
            --color-border: #E2E8F0;
            --color-bg-alt: #F7FAFC;
            --color-footer-bg: #1A365D;
            --color-footer-link: #A0AEC0;
            --radius-card: 10px;
            --radius-btn: 8px;
            --radius-pill: 20px;
            --shadow-card: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-card-hover: 0 8px 24px rgba(43,108,176,0.12), 0 2px 6px rgba(0,0,0,0.06);
            --shadow-focus: 0 0 0 3px rgba(43,108,176,0.2);
            --transition-base: 200ms ease;
            --font-sans: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            color: var(--color-ink);
            background-color: #FFFFFF;
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-base), text-decoration var(--transition-base);
        }
        a:hover {
            color: var(--color-primary-deep);
            text-decoration: underline;
            text-decoration-thickness: 2px;
            text-underline-offset: 3px;
        }
        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }
        .container-narrow {
            max-width: 820px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }
        .container-form {
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }
        .section {
            padding-top: 88px;
            padding-bottom: 88px;
        }
        .section-tight {
            padding-top: 56px;
            padding-bottom: 56px;
        }
        .section-alt {
            background-color: var(--color-bg-alt);
        }
        .section-light-blue {
            background-color: var(--color-primary-light);
        }
        .section-footer {
            background-color: var(--color-footer-bg);
            padding-top: 56px;
            padding-bottom: 28px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.5;
            transition: all var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
            border: 1px solid transparent;
        }
        .btn-primary {
            background-color: var(--color-primary);
            color: #FFFFFF;
            border-color: var(--color-primary);
        }
        .btn-primary:hover {
            background-color: var(--color-primary-deep);
            border-color: var(--color-primary-deep);
            box-shadow: 0 4px 12px rgba(43,108,176,0.3);
            text-decoration: none;
            color: #FFFFFF;
        }
        .btn-primary:active {
            background-color: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
        }
        .btn-primary:focus-visible {
            box-shadow: var(--shadow-focus);
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--color-primary);
            border-color: var(--color-primary);
        }
        .btn-secondary:hover {
            background-color: var(--color-primary-light);
            border-color: var(--color-primary);
            text-decoration: none;
            color: var(--color-primary-deep);
        }
        .btn-secondary:active {
            background-color: var(--color-primary-lighter);
            border-color: var(--color-primary);
        }
        .btn-secondary:focus-visible {
            box-shadow: var(--shadow-focus);
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
        }
        .card {
            background-color: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: all var(--transition-base);
        }
        .card:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 500;
            line-height: 1.4;
        }
        .badge-primary {
            background-color: var(--color-primary-light);
            color: var(--color-primary-deep);
        }
        .badge-accent {
            background-color: var(--color-accent-light);
            color: #8B7340;
        }
        .nav-channel-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-secondary);
            text-decoration: none;
            padding-bottom: 6px;
            position: relative;
            transition: color var(--transition-base);
        }
        .nav-channel-link:hover {
            color: var(--color-primary);
            text-decoration: none;
        }
        .nav-channel-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }
        .nav-channel-link.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            right: 0;
            height: 2px;
            background-color: var(--color-primary);
            border-radius: 2px;
        }
        .hidden-scrollbar {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }
        .hidden-scrollbar::-webkit-scrollbar {
            display: none;
        }
        .footer-heading {
            color: #FFFFFF;
            font-weight: 600;
            font-size: 14px;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .footer-link {
            display: block;
            color: var(--color-footer-link);
            font-size: 13px;
            line-height: 2;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        .footer-link:hover {
            color: #FFFFFF;
            text-decoration: none;
        }
        .breadcrumb-link {
            color: var(--color-secondary);
            font-size: 13px;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        .breadcrumb-link:hover {
            color: var(--color-primary);
            text-decoration: none;
        }
        .breadcrumb-sep {
            color: var(--color-border);
            font-size: 13px;
            margin: 0 8px;
        }
        .news-item {
            border-bottom: 1px solid var(--color-border);
            padding: 20px 0;
            transition: background-color var(--transition-base);
        }
        .news-item:hover {
            background-color: var(--color-primary-light);
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-date {
            color: var(--color-accent);
            font-size: 13px;
            font-weight: 500;
            white-space: nowrap;
        }
        .news-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-ink);
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .news-title a {
            color: var(--color-ink);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        .news-title a:hover {
            color: var(--color-primary);
            text-decoration: none;
        }
        .news-summary {
            font-size: 14px;
            color: var(--color-secondary);
            line-height: 1.7;
        }
        .tag-cloud-item {
            display: inline-block;
            padding: 4px 12px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-pill);
            font-size: 12px;
            color: var(--color-secondary);
            margin: 4px 4px 4px 0;
            transition: all var(--transition-base);
            text-decoration: none;
            cursor: pointer;
        }
        .tag-cloud-item:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            text-decoration: none;
            background-color: var(--color-primary-light);
        }
        .ranking-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid var(--color-border);
        }
        .ranking-item:last-child {
            border-bottom: none;
        }
        .ranking-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            border-radius: 6px;
            font-size: 12px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .ranking-number.top1 {
            background-color: var(--color-accent);
            color: #FFFFFF;
        }
        .ranking-number.top2 {
            background-color: #C0A86A;
            color: #FFFFFF;
        }
        .ranking-number.top3 {
            background-color: #D5C09A;
            color: #5F4E2E;
        }
        .ranking-number.other {
            background-color: var(--color-primary-light);
            color: var(--color-primary);
        }
        .hero-mini {
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 48px 0 56px;
        }
        .hero-mini::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26,54,93,0.88) 0%, rgba(43,108,176,0.78) 55%, rgba(201,168,106,0.5) 100%);
        }
        .hero-mini .container {
            position: relative;
            z-index: 1;
        }
        .cta-panel {
            background: linear-gradient(135deg, var(--color-primary-light) 0%, #F7FAFC 60%, var(--color-accent-light) 100%);
            border: 1px solid var(--color-primary-lighter);
            border-radius: var(--radius-card);
            padding: 32px 36px;
        }
        .section-focus-ring:focus-visible {
            box-shadow: var(--shadow-focus);
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
            border-radius: var(--radius-btn);
        }
        @media (max-width: 768px) {
            .section {
                padding-top: 56px;
                padding-bottom: 56px;
            }
            .section-tight {
                padding-top: 40px;
                padding-bottom: 40px;
            }
            .hero-mini {
                padding: 36px 0 40px;
            }
            .cta-panel {
                padding: 20px 16px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .news-item {
                padding: 16px 0;
            }
            .news-title {
                font-size: 15px;
            }
            .news-summary {
                font-size: 13px;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #2B6CB0;
            --color-primary-deep: #1F5A96;
            --color-primary-dark: #1A4F82;
            --color-primary-light: #EBF3FA;
            --color-primary-lighter: #D5E5F5;
            --color-accent: #C9A86A;
            --color-accent-light: #F7F2E8;
            --color-ink: #1A202C;
            --color-secondary: #4A5568;
            --color-border: #E2E8F0;
            --color-bg-alt: #F7FAFC;
            --color-footer-bg: #1A365D;
            --color-footer-link: #A0AEC0;
            --radius-card: 10px;
            --radius-btn: 8px;
            --radius-pill: 20px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 8px 24px rgba(43, 108, 176, 0.12), 0 2px 6px rgba(0, 0, 0, 0.06);
            --shadow-focus: 0 0 0 3px rgba(43, 108, 176, 0.2);
            --transition-base: 200ms ease;
            --font-sans: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            color: var(--color-ink);
            background-color: #FFFFFF;
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-base), text-decoration var(--transition-base);
        }
        a:hover {
            color: var(--color-primary-deep);
            text-decoration: underline;
            text-decoration-thickness: 2px;
            text-underline-offset: 3px;
        }
        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }
        .container-narrow {
            max-width: 820px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }
        .container-form {
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }
        .section {
            padding-top: 72px;
            padding-bottom: 72px;
        }
        .section-tight {
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .section-alt {
            background-color: var(--color-bg-alt);
        }
        .section-light-blue {
            background-color: var(--color-primary-light);
        }
        .section-footer {
            background-color: var(--color-footer-bg);
            padding-top: 56px;
            padding-bottom: 28px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.5;
            transition: all var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
            border: 1px solid transparent;
        }
        .btn-primary {
            background-color: var(--color-primary);
            color: #FFFFFF;
            border-color: var(--color-primary);
        }
        .btn-primary:hover {
            background-color: var(--color-primary-deep);
            border-color: var(--color-primary-deep);
            box-shadow: 0 4px 12px rgba(43, 108, 176, 0.3);
            text-decoration: none;
            color: #FFFFFF;
        }
        .btn-primary:active {
            background-color: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
        }
        .btn-primary:focus-visible {
            box-shadow: var(--shadow-focus);
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--color-primary);
            border-color: var(--color-primary);
        }
        .btn-secondary:hover {
            background-color: var(--color-primary-light);
            border-color: var(--color-primary);
            text-decoration: none;
            color: var(--color-primary-deep);
        }
        .btn-secondary:active {
            background-color: var(--color-primary-lighter);
            border-color: var(--color-primary);
        }
        .btn-secondary:focus-visible {
            box-shadow: var(--shadow-focus);
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
        }
        .card {
            background-color: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: all var(--transition-base);
        }
        .card:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 500;
            line-height: 1.5;
            background-color: var(--color-primary-light);
            color: var(--color-primary);
        }
        .badge-accent {
            background-color: var(--color-accent-light);
            color: var(--color-accent);
        }
        .nav-channel-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-secondary);
            padding: 8px 2px;
            border-bottom: 2px solid transparent;
            transition: all var(--transition-base);
            position: relative;
            text-decoration: none;
            white-space: nowrap;
        }
        .nav-channel-link:hover {
            color: var(--color-primary);
            text-decoration: none;
        }
        .nav-channel-link.active {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary);
            font-weight: 600;
        }
        .nav-channel-link:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
            border-radius: 2px;
        }
        .hidden-scrollbar {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }
        .hidden-scrollbar::-webkit-scrollbar {
            display: none;
        }
        .footer-heading {
            color: #FFFFFF;
            font-weight: 700;
            font-size: 14px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .footer-link {
            display: block;
            color: var(--color-footer-link);
            font-size: 13px;
            line-height: 2;
            transition: color var(--transition-base);
            text-decoration: none;
        }
        .footer-link:hover {
            color: #FFFFFF;
            text-decoration: none;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-secondary);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-secondary);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
            text-decoration: underline;
        }
        .breadcrumb-separator {
            color: var(--color-border);
            user-select: none;
        }
        .hero-bg {
            background-image: linear-gradient(rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.92)), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }
        .step-bar {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 20px 24px;
            background-color: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            position: relative;
        }
        .step-bar:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-card-hover);
        }
        .step-number {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--color-primary-light);
            color: var(--color-primary);
            font-weight: 700;
            font-size: 18px;
            flex-shrink: 0;
        }
        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            background-color: #FFFFFF;
            transition: all var(--transition-base);
        }
        .faq-item.active {
            border-color: var(--color-primary);
            background-color: var(--color-primary-light);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-ink);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            transition: color var(--transition-base);
            background: none;
            border: none;
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 300;
            color: var(--color-primary);
            transition: transform var(--transition-base);
            user-select: none;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 300ms ease, padding 300ms ease;
            padding: 0 24px;
            color: var(--color-secondary);
            font-size: 15px;
            line-height: 1.75;
        }
        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }
        .policy-card-large {
            grid-column: span 2;
            background-color: var(--color-primary-light);
            border: 1px solid var(--color-primary-lighter);
        }
        .img-rounded {
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
        }
        .table-highlight {
            background-color: var(--color-primary-light);
            border: 1px solid var(--color-primary);
            border-radius: var(--radius-card);
            padding: 20px 24px;
        }
        .key-point-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .key-point-list li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 14px;
            font-size: 15px;
            line-height: 1.7;
            color: var(--color-secondary);
        }
        .key-point-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            width: 14px;
            height: 3px;
            background-color: var(--color-accent);
            border-radius: 2px;
        }
        .section-cta {
            background-color: var(--color-primary-light);
            border-top: 4px solid var(--color-accent);
        }
        .form-input {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            font-size: 15px;
            background-color: #FFFFFF;
            color: var(--color-ink);
            transition: all var(--transition-base);
        }
        .form-input:focus {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-focus);
        }
        .form-label {
            display: block;
            font-size: 14px;
            color: var(--color-secondary);
            margin-bottom: 6px;
            font-weight: 500;
        }
        .form-group {
            margin-bottom: 18px;
        }
        @media (max-width: 768px) {
            .section {
                padding-top: 56px;
                padding-bottom: 56px;
            }
            .section-tight {
                padding-top: 40px;
                padding-bottom: 40px;
            }
            .policy-card-large {
                grid-column: span 1;
            }
            .step-bar {
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-bg {
                background-image: linear-gradient(rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.95)), url('/assets/images/backpic/back-2.webp');
            }
        }
        @media (max-width: 520px) {
            .btn-lg {
                padding: 10px 20px;
                font-size: 14px;
            }
            .card {
                padding: 18px;
            }
            .faq-question {
                padding: 14px 18px;
                font-size: 15px;
            }
            .faq-item.active .faq-answer {
                padding: 0 18px 16px;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #2B6CB0;
            --color-primary-deep: #1F5A96;
            --color-primary-dark: #1A4F82;
            --color-primary-light: #EBF3FA;
            --color-primary-lighter: #D5E5F5;
            --color-accent: #C9A86A;
            --color-accent-light: #F7F2E8;
            --color-ink: #1A202C;
            --color-secondary: #4A5568;
            --color-border: #E2E8F0;
            --color-bg-alt: #F7FAFC;
            --color-footer-bg: #1A365D;
            --color-footer-link: #A0AEC0;
            --radius-card: 10px;
            --radius-btn: 8px;
            --radius-pill: 20px;
            --shadow-card: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-card-hover: 0 8px 24px rgba(43,108,176,0.12), 0 2px 6px rgba(0,0,0,0.06);
            --shadow-focus: 0 0 0 3px rgba(43,108,176,0.2);
            --transition-base: 200ms ease;
            --font-sans: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            color: var(--color-ink);
            background-color: #FFFFFF;
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        a:hover {
            color: var(--color-primary-deep);
            text-decoration: underline;
            text-decoration-thickness: 2px;
            text-underline-offset: 3px;
        }

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

        button {
            cursor: pointer;
        }

        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }

        .container-narrow {
            max-width: 820px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }

        .container-form {
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }

        .section {
            padding-top: 88px;
            padding-bottom: 88px;
        }

        .section-tight {
            padding-top: 56px;
            padding-bottom: 56px;
        }

        .section-alt {
            background-color: var(--color-bg-alt);
        }

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

        .section-footer {
            background-color: var(--color-footer-bg);
            padding-top: 56px;
            padding-bottom: 28px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.5;
            transition: all var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
            border: 1px solid transparent;
        }

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

        .btn-primary:hover {
            background-color: var(--color-primary-deep);
            border-color: var(--color-primary-deep);
            box-shadow: 0 4px 12px rgba(43,108,176,0.3);
            text-decoration: none;
            color: #FFFFFF;
        }

        .btn-primary:active {
            background-color: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
        }

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

        .btn-secondary {
            background-color: transparent;
            color: var(--color-primary);
            border-color: var(--color-primary);
        }

        .btn-secondary:hover {
            background-color: var(--color-primary-light);
            border-color: var(--color-primary);
            text-decoration: none;
            color: var(--color-primary-deep);
        }

        .btn-secondary:active {
            background-color: var(--color-primary-lighter);
            border-color: var(--color-primary);
        }

        .btn-secondary:focus-visible {
            box-shadow: var(--shadow-focus);
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
        }

        .card {
            background-color: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: all var(--transition-base);
        }

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

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            line-height: 1.5;
            letter-spacing: 0.02em;
        }

        .badge-accent {
            background-color: var(--color-accent-light);
            color: #8A6D3B;
        }

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

        .nav-channel-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: 10px 2px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-secondary);
            transition: color var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
        }

        .nav-channel-link:hover {
            color: var(--color-primary);
            text-decoration: none;
        }

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

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

        .hidden-scrollbar {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }

        .hidden-scrollbar::-webkit-scrollbar {
            display: none;
        }

        .footer-heading {
            color: #FFFFFF;
            font-weight: 600;
            font-size: 14px;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .footer-link {
            display: block;
            color: var(--color-footer-link);
            font-size: 13px;
            line-height: 1.6;
            padding: 4px 0;
            transition: color var(--transition-base);
            text-decoration: none;
        }

        .footer-link:hover {
            color: #FFFFFF;
            text-decoration: none;
        }

        .form-input {
            display: block;
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-btn);
            border: 1px solid #CBD5E0;
            background-color: #FFFFFF;
            font-size: 14px;
            line-height: 1.5;
            color: var(--color-ink);
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .form-input:focus {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-focus);
        }

        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-secondary);
            margin-bottom: 8px;
        }

        .breadcrumb-link {
            font-size: 13px;
            color: rgba(255,255,255,0.75);
            text-decoration: none;
            transition: color var(--transition-base);
        }

        .breadcrumb-link:hover {
            color: #FFFFFF;
            text-decoration: underline;
        }

        .breadcrumb-sep {
            font-size: 13px;
            color: rgba(255,255,255,0.5);
            margin: 0 8px;
        }

        .check-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 0;
        }

        .check-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background-color: var(--color-primary-light);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            margin-top: 2px;
        }

        .compare-highlight {
            background-color: var(--color-primary-light);
            border: 1px solid var(--color-primary);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            position: relative;
        }

        .compare-highlight::before {
            content: '推荐';
            position: absolute;
            top: -12px;
            right: 20px;
            background-color: var(--color-accent);
            color: #FFFFFF;
            font-size: 12px;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: var(--radius-pill);
        }

        .data-bar {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 0;
            border-bottom: 1px solid var(--color-border);
        }

        .data-bar:last-child {
            border-bottom: none;
        }

        .data-bar-label {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-secondary);
            min-width: 100px;
            flex-shrink: 0;
        }

        .data-bar-value {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-primary);
            min-width: 80px;
            text-align: right;
            flex-shrink: 0;
        }

        .data-bar-track {
            flex: 1;
            height: 8px;
            background-color: var(--color-border);
            border-radius: 4px;
            overflow: hidden;
        }

        .data-bar-fill {
            height: 100%;
            background-color: var(--color-primary);
            border-radius: 4px;
            transition: width 0.6s ease;
        }

        .data-bar-fill.accent {
            background-color: var(--color-accent);
        }

        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            background-color: #FFFFFF;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            padding: 18px 24px;
            text-align: left;
            font-weight: 600;
            font-size: 16px;
            color: var(--color-ink);
            transition: background-color var(--transition-base);
        }

        .faq-question:hover {
            background-color: var(--color-bg-alt);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: var(--color-primary-light);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 400;
            transition: transform var(--transition-base);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            color: var(--color-secondary);
            font-size: 15px;
            line-height: 1.75;
        }

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

        .property-card-img {
            position: relative;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }

        .property-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

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

        .property-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background-color: rgba(26,54,93,0.85);
            color: #FFFFFF;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.04em;
        }

        .metric-large {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--color-primary);
        }

        .metric-large.accent {
            color: var(--color-accent);
        }

        @media (max-width: 768px) {
            .section {
                padding-top: 56px;
                padding-bottom: 56px;
            }
            .section-tight {
                padding-top: 40px;
                padding-bottom: 40px;
            }
            .metric-large {
                font-size: 28px;
            }
            .data-bar-label {
                min-width: 70px;
                font-size: 12px;
            }
            .data-bar-value {
                font-size: 16px;
                min-width: 60px;
            }
            .check-item {
                padding: 8px 0;
            }
        }

        @media (max-width: 520px) {
            .btn {
                padding: 10px 18px;
                font-size: 14px;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 15px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 15px;
            }
            .faq-answer {
                padding: 0 16px;
                font-size: 14px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 16px 16px;
            }
            .compare-highlight {
                padding: 16px;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #2B6CB0;
            --color-primary-deep: #1F5A96;
            --color-primary-dark: #1A4F82;
            --color-primary-light: #EBF3FA;
            --color-primary-lighter: #D5E5F5;
            --color-accent: #C9A86A;
            --color-accent-light: #F7F2E8;
            --color-ink: #1A202C;
            --color-secondary: #4A5568;
            --color-border: #E2E8F0;
            --color-bg-alt: #F7FAFC;
            --color-footer-bg: #1A365D;
            --color-footer-link: #A0AEC0;
            --radius-card: 10px;
            --radius-btn: 8px;
            --radius-pill: 20px;
            --shadow-card: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-card-hover: 0 8px 24px rgba(43,108,176,0.12), 0 2px 6px rgba(0,0,0,0.06);
            --shadow-focus: 0 0 0 3px rgba(43,108,176,0.2);
            --transition-base: 200ms ease;
            --font-sans: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            color: var(--color-ink);
            background-color: #FFFFFF;
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-base), text-decoration var(--transition-base);
        }
        a:hover {
            color: var(--color-primary-deep);
            text-decoration: underline;
            text-decoration-thickness: 2px;
            text-underline-offset: 3px;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }
        .container-narrow {
            max-width: 820px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }
        .container-form {
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }
        .section {
            padding-top: 88px;
            padding-bottom: 88px;
        }
        .section-tight {
            padding-top: 56px;
            padding-bottom: 56px;
        }
        .section-alt {
            background-color: var(--color-bg-alt);
        }
        .section-light-blue {
            background-color: var(--color-primary-light);
        }
        .section-footer {
            background-color: var(--color-footer-bg);
            padding-top: 56px;
            padding-bottom: 28px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.5;
            transition: all var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
            border: 1px solid transparent;
        }
        .btn-primary {
            background-color: var(--color-primary);
            color: #FFFFFF;
            border-color: var(--color-primary);
        }
        .btn-primary:hover {
            background-color: var(--color-primary-deep);
            border-color: var(--color-primary-deep);
            box-shadow: 0 4px 12px rgba(43, 108, 176, 0.3);
            text-decoration: none;
            color: #FFFFFF;
        }
        .btn-primary:active {
            background-color: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
        }
        .btn-primary:focus-visible {
            box-shadow: var(--shadow-focus);
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--color-primary);
            border-color: var(--color-primary);
        }
        .btn-secondary:hover {
            background-color: var(--color-primary-light);
            border-color: var(--color-primary);
            text-decoration: none;
            color: var(--color-primary-deep);
        }
        .btn-secondary:active {
            background-color: var(--color-primary-lighter);
            border-color: var(--color-primary);
        }
        .btn-secondary:focus-visible {
            box-shadow: var(--shadow-focus);
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
        }
        .card {
            background-color: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: all var(--transition-base);
        }
        .card:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            line-height: 1.5;
            white-space: nowrap;
        }
        .badge-blue {
            background-color: var(--color-primary-light);
            color: var(--color-primary);
        }
        .badge-accent {
            background-color: var(--color-accent-light);
            color: #8A6D3B;
        }
        .nav-channel-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 4px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-secondary);
            border-bottom: 2px solid transparent;
            transition: color var(--transition-base), border-color var(--transition-base);
            white-space: nowrap;
            line-height: 1.5;
        }
        .nav-channel-link:hover {
            color: var(--color-primary);
            text-decoration: none;
            border-bottom-color: var(--color-primary);
        }
        .nav-channel-link.active {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary);
            font-weight: 600;
        }
        .hidden-scrollbar {
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .hidden-scrollbar::-webkit-scrollbar {
            display: none;
        }
        .hero-bg-travel {
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .hero-bg-travel::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13, 26, 46, 0.72) 0%, rgba(13, 26, 46, 0.55) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .timeline-line {
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 2px;
            background-color: var(--color-border);
            transform: translateX(-50%);
        }
        .timeline-dot {
            position: absolute;
            left: 50%;
            top: 24px;
            width: 16px;
            height: 16px;
            background-color: var(--color-primary);
            border: 3px solid #FFFFFF;
            border-radius: 50%;
            transform: translateX(-50%);
            box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.2);
            z-index: 2;
        }
        .timeline-item {
            position: relative;
            padding-left: calc(50% + 40px);
            padding-bottom: 40px;
        }
        .timeline-item:nth-child(even) {
            padding-left: 0;
            padding-right: calc(50% + 40px);
            text-align: right;
        }
        .timeline-item:nth-child(even) .timeline-card-inner {
            text-align: left;
        }
        .timeline-card-inner {
            background-color: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 20px 24px;
            transition: all var(--transition-base);
        }
        .timeline-card-inner:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-card-hover);
        }
        .dest-scroll {
            overflow-x: auto;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .dest-scroll::-webkit-scrollbar {
            display: none;
        }
        .dest-card {
            scroll-snap-align: start;
            flex-shrink: 0;
            width: 280px;
        }
        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            margin-bottom: 12px;
            background-color: #FFFFFF;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .faq-item.open {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 18px 20px;
            text-align: left;
            font-weight: 600;
            font-size: 16px;
            color: var(--color-ink);
            transition: color var(--transition-base), background-color var(--transition-base);
            cursor: pointer;
            gap: 16px;
        }
        .faq-question:hover {
            color: var(--color-primary);
            background-color: var(--color-primary-light);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            transition: transform var(--transition-base);
            font-size: 20px;
            font-weight: 400;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 20px 20px 20px;
        }
        .faq-answer p {
            color: var(--color-secondary);
            font-size: 15px;
            line-height: 1.8;
        }
        .form-input {
            display: block;
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-btn);
            border: 1px solid #CBD5E0;
            background-color: #FFFFFF;
            font-size: 15px;
            color: var(--color-ink);
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .form-input:focus {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-focus);
        }
        .form-label {
            display: block;
            font-size: 14px;
            color: var(--color-secondary);
            margin-bottom: 6px;
            font-weight: 500;
        }
        .footer-heading {
            font-size: 15px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
        }
        .footer-link {
            display: block;
            color: var(--color-footer-link);
            font-size: 13px;
            line-height: 2.1;
            transition: color var(--transition-base);
        }
        .footer-link:hover {
            color: #FFFFFF;
            text-decoration: none;
        }
        @media (max-width: 768px) {
            .section {
                padding-top: 56px;
                padding-bottom: 56px;
            }
            .section-tight {
                padding-top: 40px;
                padding-bottom: 40px;
            }
            .timeline-line {
                left: 16px;
                transform: none;
            }
            .timeline-dot {
                left: 16px;
                transform: none;
            }
            .timeline-item,
            .timeline-item:nth-child(even) {
                padding-left: 48px;
                padding-right: 0;
                text-align: left;
            }
            .timeline-item:nth-child(even) .timeline-card-inner {
                text-align: left;
            }
            .dest-card {
                width: 240px;
            }
            .hero-bg-travel {
                min-height: 420px;
            }
        }
        @media (max-width: 520px) {
            .container,
            .container-narrow,
            .container-form {
                padding-left: 16px;
                padding-right: 16px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 14px;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-answer p {
                font-size: 14px;
            }
        }

/* roulang page: category6 */
:root {
            --color-primary: #2B6CB0;
            --color-primary-deep: #1F5A96;
            --color-primary-dark: #1A4F82;
            --color-primary-light: #EBF3FA;
            --color-primary-lighter: #D5E5F5;
            --color-accent: #C9A86A;
            --color-accent-light: #F7F2E8;
            --color-ink: #1A202C;
            --color-secondary: #4A5568;
            --color-border: #E2E8F0;
            --color-bg-alt: #F7FAFC;
            --color-footer-bg: #1A365D;
            --color-footer-link: #A0AEC0;
            --radius-card: 10px;
            --radius-btn: 8px;
            --radius-pill: 20px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 8px 24px rgba(43, 108, 176, 0.12), 0 2px 6px rgba(0, 0, 0, 0.06);
            --shadow-focus: 0 0 0 3px rgba(43, 108, 176, 0.2);
            --transition-base: 200ms ease;
            --font-sans: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            color: var(--color-ink);
            background-color: #FFFFFF;
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        a:hover {
            color: var(--color-primary-deep);
            text-decoration: underline;
            text-decoration-thickness: 2px;
            text-underline-offset: 3px;
        }

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

        button {
            cursor: pointer;
        }

        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }

        .container-narrow {
            max-width: 860px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }

        .section {
            padding-top: 88px;
            padding-bottom: 88px;
        }

        .section-tight {
            padding-top: 56px;
            padding-bottom: 56px;
        }

        .section-alt {
            background-color: var(--color-bg-alt);
        }

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

        .section-footer {
            background-color: var(--color-footer-bg);
            padding-top: 56px;
            padding-bottom: 28px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.5;
            transition: all var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
            border: 1px solid transparent;
        }

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

        .btn-primary:hover {
            background-color: var(--color-primary-deep);
            border-color: var(--color-primary-deep);
            box-shadow: 0 4px 12px rgba(43, 108, 176, 0.3);
            text-decoration: none;
            color: #FFFFFF;
        }

        .btn-primary:active {
            background-color: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
        }

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

        .btn-secondary {
            background-color: transparent;
            color: var(--color-primary);
            border-color: var(--color-primary);
        }

        .btn-secondary:hover {
            background-color: var(--color-primary-light);
            border-color: var(--color-primary);
            text-decoration: none;
            color: var(--color-primary-deep);
        }

        .btn-secondary:active {
            background-color: var(--color-primary-lighter);
            border-color: var(--color-primary);
        }

        .btn-secondary:focus-visible {
            box-shadow: var(--shadow-focus);
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
        }

        .card {
            background-color: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: all var(--transition-base);
        }

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

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            line-height: 1.5;
            background-color: var(--color-primary-light);
            color: var(--color-primary);
        }

        .badge-accent {
            background-color: var(--color-accent-light);
            color: #8B6F3E;
        }

        .nav-channel-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-secondary);
            padding: 6px 2px;
            position: relative;
            transition: color var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
        }

        .nav-channel-link:hover {
            color: var(--color-primary);
            text-decoration: none;
        }

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

        .nav-channel-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background-color: var(--color-primary);
            border-radius: 1px;
        }

        .hidden-scrollbar {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }

        .hidden-scrollbar::-webkit-scrollbar {
            display: none;
        }

        .footer-heading {
            color: #FFFFFF;
            font-weight: 700;
            font-size: 15px;
            margin-bottom: 16px;
        }

        .footer-link {
            display: block;
            color: var(--color-footer-link);
            font-size: 13px;
            margin-bottom: 10px;
            transition: color var(--transition-base);
            text-decoration: none;
        }

        .footer-link:hover {
            color: #FFFFFF;
            text-decoration: none;
        }

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

        .article-card {
            display: grid;
            grid-template-columns: 340px 1fr;
            gap: 32px;
            background-color: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
        }

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

        .article-card-img {
            min-height: 260px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .article-card-body {
            padding: 32px 28px 32px 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .download-card {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background-color: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 20px 24px;
            transition: all var(--transition-base);
        }

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

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

        .faq-item:hover {
            border-color: var(--color-primary-lighter);
        }

        .faq-question {
            width: 100%;
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-weight: 600;
            font-size: 16px;
            color: var(--color-ink);
            text-align: left;
            transition: background-color var(--transition-base);
            background: none;
            border: none;
            cursor: pointer;
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 400;
            color: var(--color-primary);
            transition: transform var(--transition-base);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 300ms ease;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 24px 20px 24px;
            color: var(--color-secondary);
            font-size: 15px;
            line-height: 1.8;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-secondary);
            margin-bottom: 16px;
        }

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

        .breadcrumb a:hover {
            text-decoration: underline;
        }

        .breadcrumb-sep {
            color: var(--color-border);
            user-select: none;
        }

        @media (max-width: 1024px) {
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .article-card {
                grid-template-columns: 1fr;
            }

            .article-card-img {
                min-height: 220px;
            }

            .article-card-body {
                padding: 24px;
            }

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

        @media (max-width: 768px) {
            .guide-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .article-card {
                gap: 0;
            }

            .article-card-img {
                min-height: 180px;
            }

            .article-card-body {
                padding: 20px;
            }

            .section {
                padding-top: 56px;
                padding-bottom: 56px;
            }

            .section-tight {
                padding-top: 40px;
                padding-bottom: 40px;
            }

            .download-card {
                flex-direction: column;
                gap: 12px;
            }

            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .faq-question {
                padding: 14px 16px;
                font-size: 15px;
            }

            .faq-answer-inner {
                padding: 0 16px 16px 16px;
            }
        }

        @media (max-width: 520px) {
            .guide-grid {
                grid-template-columns: 1fr;
            }

            .breadcrumb {
                font-size: 12px;
                flex-wrap: wrap;
            }
        }

/* roulang page: category7 */
:root {
            --color-primary: #2B6CB0;
            --color-primary-deep: #1F5A96;
            --color-primary-dark: #1A4F82;
            --color-primary-light: #EBF3FA;
            --color-primary-lighter: #D5E5F5;
            --color-accent: #C9A86A;
            --color-accent-light: #F7F2E8;
            --color-ink: #1A202C;
            --color-secondary: #4A5568;
            --color-border: #E2E8F0;
            --color-bg-alt: #F7FAFC;
            --color-footer-bg: #1A365D;
            --color-footer-link: #A0AEC0;
            --radius-card: 10px;
            --radius-btn: 8px;
            --radius-pill: 20px;
            --shadow-card: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-card-hover: 0 8px 24px rgba(43,108,176,0.12), 0 2px 6px rgba(0,0,0,0.06);
            --shadow-focus: 0 0 0 3px rgba(43,108,176,0.2);
            --transition-base: 200ms ease;
            --font-sans: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            color: var(--color-ink);
            background-color: #FFFFFF;
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        a:hover {
            color: var(--color-primary-deep);
            text-decoration: underline;
            text-decoration-thickness: 2px;
            text-underline-offset: 3px;
        }

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

        button {
            cursor: pointer;
        }

        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }

        .container-narrow {
            max-width: 820px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }

        .container-form {
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }

        .section {
            padding-top: 88px;
            padding-bottom: 88px;
        }

        .section-tight {
            padding-top: 56px;
            padding-bottom: 56px;
        }

        .section-alt {
            background-color: var(--color-bg-alt);
        }

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

        .section-footer {
            background-color: var(--color-footer-bg);
            padding-top: 56px;
            padding-bottom: 28px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.5;
            transition: all var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
            border: 1px solid transparent;
            gap: 6px;
        }

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

        .btn-primary:hover {
            background-color: var(--color-primary-deep);
            border-color: var(--color-primary-deep);
            box-shadow: 0 4px 12px rgba(43,108,176,0.3);
            text-decoration: none;
            color: #FFFFFF;
        }

        .btn-primary:active {
            background-color: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
        }

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

        .btn-secondary {
            background-color: transparent;
            color: var(--color-primary);
            border-color: var(--color-primary);
        }

        .btn-secondary:hover {
            background-color: var(--color-primary-light);
            border-color: var(--color-primary);
            text-decoration: none;
            color: var(--color-primary-deep);
        }

        .btn-secondary:active {
            background-color: var(--color-primary-lighter);
            border-color: var(--color-primary);
        }

        .btn-secondary:focus-visible {
            box-shadow: var(--shadow-focus);
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
        }

        .card {
            background-color: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: all var(--transition-base);
        }

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

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            line-height: 1.4;
            background-color: var(--color-primary-light);
            color: var(--color-primary);
            white-space: nowrap;
        }

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

        .nav-channel-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 4px;
            font-size: 14px;
            font-weight: 500;
            line-height: 1.5;
            color: var(--color-secondary);
            transition: color var(--transition-base);
            white-space: nowrap;
            text-decoration: none;
            position: relative;
        }

        .nav-channel-link:hover {
            color: var(--color-primary);
            text-decoration: none;
        }

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

        .nav-channel-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 4px;
            right: 4px;
            height: 2px;
            background-color: var(--color-primary);
            border-radius: 2px;
        }

        .hidden-scrollbar {
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .hidden-scrollbar::-webkit-scrollbar {
            display: none;
        }

        .footer-link {
            display: block;
            color: var(--color-footer-link);
            font-size: 13px;
            line-height: 1.6;
            padding: 3px 0;
            transition: color var(--transition-base);
            text-decoration: none;
        }

        .footer-link:hover {
            color: #FFFFFF;
            text-decoration: none;
        }

        .footer-heading {
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 14px;
            line-height: 1.4;
        }

        .form-input {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid #CBD5E0;
            border-radius: var(--radius-btn);
            background-color: #FFFFFF;
            font-size: 14px;
            line-height: 1.5;
            color: var(--color-ink);
            transition: all var(--transition-base);
        }

        .form-input:focus {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-focus);
            outline: none;
        }

        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-secondary);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .timeline-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: var(--color-primary);
            flex-shrink: 0;
            position: relative;
            z-index: 1;
            box-shadow: 0 0 0 4px rgba(43,108,176,0.15);
        }

        .timeline-dot-accent {
            background-color: var(--color-accent);
            box-shadow: 0 0 0 4px rgba(201,168,106,0.15);
        }

        .team-avatar {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background-color: var(--color-primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            font-weight: 700;
            color: var(--color-primary);
            flex-shrink: 0;
            border: 2px solid #FFFFFF;
            box-shadow: var(--shadow-card);
        }

        @media (max-width: 1024px) {
            .section {
                padding-top: 64px;
                padding-bottom: 64px;
            }
            .section-tight {
                padding-top: 44px;
                padding-bottom: 44px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding-top: 56px;
                padding-bottom: 56px;
            }
            .section-tight {
                padding-top: 36px;
                padding-bottom: 36px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 14px;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 15px;
            }
            .card {
                padding: 18px;
            }
            .team-avatar {
                width: 56px;
                height: 56px;
                font-size: 22px;
            }
        }

        @media (max-width: 520px) {
            .section {
                padding-top: 44px;
                padding-bottom: 44px;
            }
            .section-tight {
                padding-top: 28px;
                padding-bottom: 28px;
            }
            .btn {
                padding: 8px 14px;
                font-size: 13px;
                width: 100%;
            }
            .btn-lg {
                padding: 10px 20px;
                font-size: 14px;
            }
            .card {
                padding: 14px;
                border-radius: 8px;
            }
        }

/* roulang page: category5 */
:root {
            --color-primary: #2B6CB0;
            --color-primary-deep: #1F5A96;
            --color-primary-dark: #1A4F82;
            --color-primary-light: #EBF3FA;
            --color-primary-lighter: #D5E5F5;
            --color-accent: #C9A86A;
            --color-accent-light: #F7F2E8;
            --color-ink: #1A202C;
            --color-secondary: #4A5568;
            --color-border: #E2E8F0;
            --color-bg-alt: #F7FAFC;
            --color-footer-bg: #1A365D;
            --color-footer-link: #A0AEC0;
            --radius-card: 10px;
            --radius-btn: 8px;
            --radius-pill: 20px;
            --shadow-card: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-card-hover: 0 8px 24px rgba(43,108,176,0.12), 0 2px 6px rgba(0,0,0,0.06);
            --shadow-focus: 0 0 0 3px rgba(43,108,176,0.2);
            --transition-base: 200ms ease;
            --font-sans: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            color: var(--color-ink);
            background-color: #FFFFFF;
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-base), text-decoration var(--transition-base);
        }
        a:hover {
            color: var(--color-primary-deep);
            text-decoration: underline;
            text-decoration-thickness: 2px;
            text-underline-offset: 3px;
        }
        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }
        .container-narrow {
            max-width: 820px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }
        .container-form {
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
            width: 100%;
        }
        .section {
            padding-top: 88px;
            padding-bottom: 88px;
        }
        .section-tight {
            padding-top: 56px;
            padding-bottom: 56px;
        }
        .section-alt {
            background-color: var(--color-bg-alt);
        }
        .section-light-blue {
            background-color: var(--color-primary-light);
        }
        .section-footer {
            background-color: var(--color-footer-bg);
            padding-top: 56px;
            padding-bottom: 28px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.5;
            transition: all var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
            border: 1px solid transparent;
        }
        .btn-primary {
            background-color: var(--color-primary);
            color: #FFFFFF;
            border-color: var(--color-primary);
        }
        .btn-primary:hover {
            background-color: var(--color-primary-deep);
            border-color: var(--color-primary-deep);
            box-shadow: 0 4px 12px rgba(43,108,176,0.3);
            text-decoration: none;
            color: #FFFFFF;
        }
        .btn-primary:active {
            background-color: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
        }
        .btn-primary:focus-visible {
            box-shadow: var(--shadow-focus);
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--color-primary);
            border-color: var(--color-primary);
        }
        .btn-secondary:hover {
            background-color: var(--color-primary-light);
            border-color: var(--color-primary);
            text-decoration: none;
            color: var(--color-primary-deep);
        }
        .btn-secondary:active {
            background-color: var(--color-primary-lighter);
            border-color: var(--color-primary);
        }
        .btn-secondary:focus-visible {
            box-shadow: var(--shadow-focus);
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
        }
        .card {
            background-color: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: all var(--transition-base);
        }
        .card:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            background-color: var(--color-primary-light);
            color: var(--color-primary);
        }
        .badge-accent {
            background-color: var(--color-accent-light);
            color: #8B6F3E;
        }
        .nav-channel-link {
            display: inline-flex;
            align-items: center;
            padding: 6px 2px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-secondary);
            transition: color var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
        }
        .nav-channel-link:hover {
            color: var(--color-primary);
            text-decoration: none;
        }
        .nav-channel-link.active {
            color: var(--color-primary);
            font-weight: 600;
            position: relative;
        }
        .nav-channel-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -6px;
            height: 2px;
            background-color: var(--color-primary);
        }
        .footer-heading {
            color: #FFFFFF;
            font-weight: 700;
            font-size: 16px;
            margin-bottom: 16px;
        }
        .footer-link {
            display: block;
            color: var(--color-footer-link);
            font-size: 13px;
            line-height: 1.8;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        .footer-link:hover {
            color: #FFFFFF;
            text-decoration: none;
        }
        .hidden-scrollbar {
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .hidden-scrollbar::-webkit-scrollbar {
            display: none;
        }
        .accordion-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            background-color: #FFFFFF;
            margin-bottom: 12px;
            overflow: hidden;
        }
        .accordion-trigger {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-ink);
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            transition: background-color var(--transition-base);
        }
        .accordion-trigger:hover {
            background-color: var(--color-primary-light);
        }
        .accordion-icon {
            transition: transform var(--transition-base);
            flex-shrink: 0;
            margin-left: 12px;
        }
        .accordion-item.open .accordion-icon {
            transform: rotate(45deg);
        }
        .accordion-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 300ms ease, padding 300ms ease;
            padding: 0 20px;
        }
        .accordion-item.open .accordion-content {
            max-height: 400px;
            padding: 0 20px 18px;
        }
        .form-input {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #CBD5E0;
            border-radius: var(--radius-btn);
            background-color: #FFFFFF;
            font-size: 15px;
            line-height: 1.5;
            color: var(--color-ink);
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .form-input:focus {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-focus);
        }
        .check-icon {
            color: var(--color-primary);
            flex-shrink: 0;
            margin-right: 12px;
        }
        .step-bar {
            background-color: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--color-primary-light);
            color: var(--color-primary);
            font-weight: 700;
            font-size: 18px;
            flex-shrink: 0;
        }
        @media (max-width: 768px) {
            .section {
                padding-top: 56px;
                padding-bottom: 56px;
            }
            .nav-channel-link.active::after {
                bottom: -3px;
            }
        }