/* roulang page: index */
:root {
            --brand-700: #a42d2d;
            --brand-800: #882828;
            --brand-900: #711d1d;
            --brand-950: #3d0a0a;
            --amber-400: #fbbf24;
            --amber-500: #f59e0b;
            --amber-600: #d97706;
            --ink: #1a1111;
            --paper: #faf7f2;
            --muted: #6b5b5b;
            --line: #e8e0d8;
            --card: #ffffff;
            --radius-sm: 0.75rem;
            --radius-md: 1rem;
            --radius-lg: 1.25rem;
            --radius-xl: 1.75rem;
            --shadow-card: 0 1px 3px rgba(0,0,0,0.04), 0 8px 24px rgba(0,0,0,0.06);
            --shadow-soft: 0 8px 30px rgba(0,0,0,0.06);
            --shadow-lift: 0 10px 40px rgba(0,0,0,0.10);
            --transition-base: all 0.25s ease;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'system-ui', sans-serif;
            background: var(--paper);
            color: var(--ink);
            line-height: 1.75;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button, input, select {
            font: inherit;
        }
        button {
            cursor: pointer;
        }
        .container-web {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        .section-gap {
            padding-top: 4.5rem;
            padding-bottom: 4.5rem;
        }
        .section-gap-sm {
            padding-top: 3rem;
            padding-bottom: 3rem;
        }
        .bg-brand-gradient {
            background: linear-gradient(135deg, #3d0a0a 0%, #711d1d 40%, #a42d2d 75%, #c43a3a 100%);
        }
        .bg-warm-paper {
            background: #faf7f2;
        }
        .bg-brand-deep {
            background: #2e0707;
        }
        .text-amber-glow {
            color: var(--amber-400);
        }
        .bg-amber-glow {
            background: var(--amber-400);
        }
        .border-line-light {
            border-color: rgba(255,255,255,0.12);
        }
        .border-line-soft {
            border-color: var(--line);
        }
        .shadow-card-soft {
            box-shadow: var(--shadow-card);
        }
        .hover-lift {
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }
        .hover-lift:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lift);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.85rem 1.75rem;
            background: #a42d2d;
            color: #ffffff;
            border-radius: 9999px;
            font-weight: 600;
            letter-spacing: 0.01em;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            border: none;
            font-size: 1rem;
            gap: 0.5rem;
        }
        .btn-primary:hover {
            background: #882828;
            transform: translateY(-1px);
            box-shadow: 0 14px 35px rgba(164, 45, 45, 0.28);
        }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(251, 191, 36, 0.7);
            outline-offset: 2px;
        }
        .btn-ghost-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.85rem 1.75rem;
            background: rgba(255,255,255,0.08);
            color: #ffffff;
            border: 1px solid rgba(255,255,255,0.35);
            border-radius: 9999px;
            font-weight: 500;
            transition: background 0.25s ease, border-color 0.25s ease;
            gap: 0.5rem;
            font-size: 1rem;
        }
        .btn-ghost-light:hover {
            background: rgba(255,255,255,0.16);
            border-color: rgba(255,255,255,0.6);
        }
        .btn-amber {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.85rem 1.75rem;
            background: #f59e0b;
            color: #1a1111;
            border-radius: 9999px;
            font-weight: 700;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            border: none;
            gap: 0.5rem;
            font-size: 1rem;
        }
        .btn-amber:hover {
            background: #fbbf24;
            transform: translateY(-1px);
            box-shadow: 0 14px 35px rgba(245, 158, 11, 0.3);
        }
        .btn-amber:focus-visible {
            outline: 3px solid rgba(164, 45, 45, 0.5);
            outline-offset: 2px;
        }
        .btn-sm {
            padding: 0.5rem 1.15rem;
            font-size: 0.9rem;
        }
        .tag-amber {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            background: rgba(251, 191, 36, 0.16);
            color: #b45309;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .tag-red {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            background: rgba(164, 45, 45, 0.08);
            color: #a42d2d;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .divider-soft {
            height: 1px;
            background: var(--line);
            border: none;
            margin: 0;
        }
        .nav-link {
            position: relative;
            font-weight: 500;
            color: #3f2e2e;
            padding: 0.5rem 0;
            transition: color 0.2s ease;
            font-size: 0.95rem;
        }
        .nav-link:hover {
            color: #a42d2d;
        }
        .nav-link.active {
            color: #a42d2d;
            font-weight: 700;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 100%;
            height: 2px;
            background: #a42d2d;
            border-radius: 2px;
        }
        .mobile-menu {
            display: none;
        }
        .mobile-menu.open {
            display: block;
        }
        .breadcrumb-item {
            font-size: 0.9rem;
            color: var(--muted);
        }
        .breadcrumb-sep {
            margin: 0 0.5rem;
            color: #c8b8b8;
        }
        .hero-bg-image {
            background-image: url('/assets/images/24e2d27633a7a7eb.webp');
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .hero-bg-image::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(61,10,10,0.94) 0%, rgba(113,29,29,0.9) 50%, rgba(164,45,45,0.78) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .stat-card {
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.14);
            border-radius: var(--radius-md);
            padding: 1.25rem;
            backdrop-filter: blur(8px);
        }
        .data-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            background: var(--amber-400);
            border-radius: 50%;
            margin-right: 0.4rem;
        }
        .timeline-dot {
            width: 14px;
            height: 14px;
            background: #a42d2d;
            border-radius: 50%;
            border: 3px solid #fcd34d;
            position: absolute;
            left: -7px;
            top: 6px;
        }
        .footer-link {
            color: #d8c8c8;
            transition: color 0.2s ease;
            font-size: 0.9rem;
        }
        .footer-link:hover {
            color: #ffffff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            padding-top: 2rem;
            margin-top: 2.5rem;
            font-size: 0.85rem;
            color: #b8a8a8;
        }
        .service-card-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(164,45,45,0.08);
            color: #a42d2d;
            font-size: 1.3rem;
            margin-bottom: 1rem;
        }
        .news-item {
            display: flex;
            flex-wrap: wrap;
            align-items: flex-start;
            gap: 1rem;
            padding: 1.25rem 0;
            border-bottom: 1px solid var(--line);
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-date {
            min-width: 80px;
            font-size: 0.9rem;
            color: var(--muted);
            font-weight: 500;
            padding-top: 0.1rem;
        }
        .faq-item {
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 1.25rem;
            background: #fff;
            transition: box-shadow 0.25s ease, border-color 0.25s ease;
        }
        .faq-item:hover {
            border-color: #d8c0c0;
            box-shadow: var(--shadow-soft);
        }
        .review-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 1.5rem;
            border: 1px solid var(--line);
            box-shadow: var(--shadow-card);
        }
        .step-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            border: 1px solid var(--line);
            box-shadow: var(--shadow-card);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lift);
        }
        input[type="text"], input[type="email"], select {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid #ddd0d0;
            border-radius: 0.75rem;
            background: #fff;
            color: var(--ink);
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
            font-size: 0.95rem;
        }
        input:focus, select:focus {
            outline: none;
            border-color: #a42d2d;
            box-shadow: 0 0 0 3px rgba(164,45,45,0.12);
        }
        @media (max-width: 1024px) {
            .container-web {
                padding-left: 1.25rem;
                padding-right: 1.25rem;
            }
            .section-gap {
                padding-top: 3.5rem;
                padding-bottom: 3.5rem;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
            .news-item {
                flex-direction: column;
                gap: 0.5rem;
            }
            .news-date {
                min-width: auto;
            }
            .section-gap {
                padding-top: 2.8rem;
                padding-bottom: 2.8rem;
            }
            .hero-content h1 {
                font-size: 2rem !important;
                line-height: 1.3 !important;
            }
            .hero-content p {
                font-size: 1rem !important;
            }
        }
        @media (max-width: 520px) {
            .container-web {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .btn-primary, .btn-amber, .btn-ghost-light {
                padding: 0.7rem 1.25rem;
                font-size: 0.9rem;
            }
            .grid-cols-1-mobile {
                grid-template-columns: 1fr !important;
            }
            .stat-card {
                padding: 1rem;
            }
        }

/* roulang page: category3 */
:root {
            --brand-700: #a42d2d;
            --brand-800: #882828;
            --brand-900: #711d1d;
            --brand-950: #3d0a0a;
            --amber-400: #fbbf24;
            --amber-500: #f59e0b;
            --amber-600: #d97706;
            --ink: #1a1111;
            --paper: #faf7f2;
            --muted: #6b5b5b;
            --line: #e8e0d8;
            --card: #ffffff;
            --radius-sm: 0.75rem;
            --radius-md: 1rem;
            --radius-lg: 1.25rem;
            --radius-xl: 1.75rem;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-soft: 0 8px 30px rgba(0, 0, 0, 0.06);
            --shadow-lift: 0 10px 40px rgba(0, 0, 0, 0.10);
            --transition-base: all 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'system-ui', sans-serif;
            background: var(--paper);
            color: var(--ink);
            line-height: 1.75;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        select {
            font: inherit;
        }
        button {
            cursor: pointer;
        }
        .container-web {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        .section-gap {
            padding-top: 4.5rem;
            padding-bottom: 4.5rem;
        }
        .section-gap-sm {
            padding-top: 3rem;
            padding-bottom: 3rem;
        }
        .bg-brand-gradient {
            background: linear-gradient(135deg, #3d0a0a 0%, #711d1d 40%, #a42d2d 75%, #c43a3a 100%);
        }
        .bg-brand-deep {
            background: #2e0707;
        }
        .text-amber-glow {
            color: var(--amber-400);
        }
        .border-line-light {
            border-color: rgba(255, 255, 255, 0.12);
        }
        .border-line-soft {
            border-color: var(--line);
        }
        .shadow-card-soft {
            box-shadow: var(--shadow-card);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.85rem 1.75rem;
            background: #a42d2d;
            color: #ffffff;
            border-radius: 9999px;
            font-weight: 600;
            letter-spacing: 0.01em;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            border: none;
            font-size: 1rem;
            gap: 0.5rem;
        }
        .btn-primary:hover {
            background: #882828;
            transform: translateY(-1px);
            box-shadow: 0 14px 35px rgba(164, 45, 45, 0.28);
        }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(251, 191, 36, 0.7);
            outline-offset: 2px;
        }
        .btn-ghost-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.85rem 1.75rem;
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
            border: 1px solid rgba(255, 255, 255, 0.35);
            border-radius: 9999px;
            font-weight: 500;
            transition: background 0.25s ease, border-color 0.25s ease;
            gap: 0.5rem;
            font-size: 1rem;
        }
        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, 0.16);
            border-color: rgba(255, 255, 255, 0.6);
        }
        .btn-amber {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.85rem 1.75rem;
            background: #f59e0b;
            color: #1a1111;
            border-radius: 9999px;
            font-weight: 700;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            border: none;
            gap: 0.5rem;
            font-size: 1rem;
        }
        .btn-amber:hover {
            background: #fbbf24;
            transform: translateY(-1px);
            box-shadow: 0 14px 35px rgba(245, 158, 11, 0.3);
        }
        .btn-amber:focus-visible {
            outline: 3px solid rgba(164, 45, 45, 0.5);
            outline-offset: 2px;
        }
        .btn-sm {
            padding: 0.5rem 1.15rem;
            font-size: 0.9rem;
        }
        .tag-amber {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            background: rgba(251, 191, 36, 0.16);
            color: #b45309;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .tag-red {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            background: rgba(164, 45, 45, 0.08);
            color: #a42d2d;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .divider-soft {
            height: 1px;
            background: var(--line);
            border: none;
            margin: 0;
        }
        .nav-link {
            position: relative;
            font-weight: 500;
            color: #3f2e2e;
            padding: 0.5rem 0;
            transition: color 0.2s ease;
            font-size: 0.95rem;
        }
        .nav-link:hover {
            color: #a42d2d;
        }
        .nav-link.active {
            color: #a42d2d;
            font-weight: 700;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 100%;
            height: 2px;
            background: #a42d2d;
            border-radius: 2px;
        }
        .mobile-menu {
            display: none;
        }
        .mobile-menu.open {
            display: block;
        }
        .breadcrumb-item {
            font-size: 0.9rem;
            color: var(--muted);
        }
        .footer-link {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: color 0.2s ease;
        }
        .footer-link:hover {
            color: #ffffff;
        }
        .tutorial-card {
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
            border: 1px solid var(--line);
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
        }
        .tutorial-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lift);
            border-color: rgba(164, 45, 45, 0.2);
        }
        .tutorial-card .tutorial-thumb {
            height: 180px;
            object-fit: cover;
            width: 100%;
        }
        .sidebar-sticky {
            position: sticky;
            top: 90px;
        }
        .step-dot {
            width: 36px;
            height: 36px;
            background: var(--brand-700);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .data-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--amber-500);
            display: inline-block;
            margin-right: 0.5rem;
            flex-shrink: 0;
        }
        .faq-accordion-item {
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            background: #fff;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .faq-accordion-item:hover {
            border-color: rgba(164, 45, 45, 0.25);
            box-shadow: var(--shadow-card);
        }
        .faq-accordion-item details summary {
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 1.25rem;
            font-weight: 600;
            color: #2e1b1b;
            gap: 1rem;
        }
        .faq-accordion-item details summary::-webkit-details-marker {
            display: none;
        }
        .faq-accordion-item details[open] summary {
            border-bottom: 1px solid var(--line);
        }
        .faq-accordion-item details summary .faq-icon {
            transition: transform 0.25s ease;
            color: var(--brand-700);
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .faq-accordion-item details[open] summary .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 1rem 1.25rem;
            color: var(--muted);
            font-size: 0.95rem;
            line-height: 1.8;
        }
        .breadcrumb-link {
            color: var(--muted);
            transition: color 0.2s ease;
        }
        .breadcrumb-link:hover {
            color: var(--brand-700);
        }
        .cta-band {
            background: linear-gradient(120deg, #3d0a0a 0%, #711d1d 55%, #a42d2d 100%);
            border-radius: var(--radius-xl);
            position: relative;
            overflow: hidden;
        }
        .cta-band::after {
            content: '';
            position: absolute;
            right: -60px;
            top: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(251, 191, 36, 0.12);
            pointer-events: none;
        }
        .cta-band::before {
            content: '';
            position: absolute;
            left: -40px;
            bottom: -70px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }
        .sidebar-stat-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 1rem 1rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .sidebar-stat-card:hover {
            border-color: rgba(164, 45, 45, 0.2);
            box-shadow: var(--shadow-card);
        }
        @media (max-width: 1024px) {
            .container-web {
                padding-left: 1.25rem;
                padding-right: 1.25rem;
            }
            .section-gap {
                padding-top: 3.5rem;
                padding-bottom: 3.5rem;
            }
            .section-gap-sm {
                padding-top: 2.5rem;
                padding-bottom: 2.5rem;
            }
            .tutorial-card .tutorial-thumb {
                height: 160px;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none !important;
            }
            .mobile-toggle {
                display: flex !important;
            }
            .container-web {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .section-gap {
                padding-top: 3rem;
                padding-bottom: 3rem;
            }
            .section-gap-sm {
                padding-top: 2rem;
                padding-bottom: 2rem;
            }
            .sidebar-sticky {
                position: static;
            }
            .tutorial-card .tutorial-thumb {
                height: 180px;
            }
            .cta-band {
                padding: 2rem 1.5rem !important;
            }
            .cta-band h2 {
                font-size: 1.5rem !important;
            }
        }
        @media (max-width: 520px) {
            .tutorial-card .tutorial-thumb {
                height: 160px;
            }
            .cta-band {
                border-radius: var(--radius-lg);
            }
            .faq-accordion-item details summary {
                padding: 0.85rem 1rem;
                font-size: 0.95rem;
            }
            .faq-answer {
                padding: 0.85rem 1rem;
                font-size: 0.9rem;
            }
        }

/* roulang page: category2 */
:root {
            --brand-700: #a42d2d;
            --brand-800: #882828;
            --brand-900: #711d1d;
            --brand-950: #3d0a0a;
            --amber-400: #fbbf24;
            --amber-500: #f59e0b;
            --amber-600: #d97706;
            --ink: #1a1111;
            --paper: #faf7f2;
            --muted: #6b5b5b;
            --line: #e8e0d8;
            --card: #ffffff;
            --radius-sm: 0.75rem;
            --radius-md: 1rem;
            --radius-lg: 1.25rem;
            --radius-xl: 1.75rem;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-soft: 0 8px 30px rgba(0, 0, 0, 0.06);
            --shadow-lift: 0 10px 40px rgba(0, 0, 0, 0.10);
            --transition-base: all 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'system-ui', sans-serif;
            background: var(--paper);
            color: var(--ink);
            line-height: 1.75;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        select {
            font: inherit;
        }
        button {
            cursor: pointer;
        }
        .container-web {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        .section-gap {
            padding-top: 4.5rem;
            padding-bottom: 4.5rem;
        }
        .section-gap-sm {
            padding-top: 3rem;
            padding-bottom: 3rem;
        }
        .bg-brand-gradient {
            background: linear-gradient(135deg, #3d0a0a 0%, #711d1d 40%, #a42d2d 75%, #c43a3a 100%);
        }
        .bg-brand-deep {
            background: #2e0707;
        }
        .text-amber-glow {
            color: var(--amber-400);
        }
        .border-line-light {
            border-color: rgba(255, 255, 255, 0.12);
        }
        .border-line-soft {
            border-color: var(--line);
        }
        .shadow-card-soft {
            box-shadow: var(--shadow-card);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.85rem 1.75rem;
            background: #a42d2d;
            color: #ffffff;
            border-radius: 9999px;
            font-weight: 600;
            letter-spacing: 0.01em;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            border: none;
            font-size: 1rem;
            gap: 0.5rem;
        }
        .btn-primary:hover {
            background: #882828;
            transform: translateY(-1px);
            box-shadow: 0 14px 35px rgba(164, 45, 45, 0.28);
        }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(251, 191, 36, 0.7);
            outline-offset: 2px;
        }
        .btn-ghost-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.85rem 1.75rem;
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
            border: 1px solid rgba(255, 255, 255, 0.35);
            border-radius: 9999px;
            font-weight: 500;
            transition: background 0.25s ease, border-color 0.25s ease;
            gap: 0.5rem;
            font-size: 1rem;
        }
        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, 0.16);
            border-color: rgba(255, 255, 255, 0.6);
        }
        .btn-amber {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.85rem 1.75rem;
            background: #f59e0b;
            color: #1a1111;
            border-radius: 9999px;
            font-weight: 700;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            border: none;
            gap: 0.5rem;
            font-size: 1rem;
        }
        .btn-amber:hover {
            background: #fbbf24;
            transform: translateY(-1px);
            box-shadow: 0 14px 35px rgba(245, 158, 11, 0.3);
        }
        .btn-amber:focus-visible {
            outline: 3px solid rgba(164, 45, 45, 0.5);
            outline-offset: 2px;
        }
        .btn-sm {
            padding: 0.5rem 1.15rem;
            font-size: 0.9rem;
        }
        .tag-amber {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            background: rgba(251, 191, 36, 0.16);
            color: #b45309;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .tag-red {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            background: rgba(164, 45, 45, 0.08);
            color: #a42d2d;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .divider-soft {
            height: 1px;
            background: var(--line);
            border: none;
            margin: 0;
        }
        .nav-link {
            position: relative;
            font-weight: 500;
            color: #3f2e2e;
            padding: 0.5rem 0;
            transition: color 0.2s ease;
            font-size: 0.95rem;
        }
        .nav-link:hover {
            color: #a42d2d;
        }
        .nav-link.active {
            color: #a42d2d;
            font-weight: 700;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 100%;
            height: 2px;
            background: #a42d2d;
            border-radius: 2px;
        }
        .mobile-menu {
            display: none;
        }
        .mobile-menu.open {
            display: block;
        }
        .breadcrumb-item {
            font-size: 0.9rem;
            color: var(--muted);
        }
        .breadcrumb-item a:hover {
            color: var(--brand-700);
        }
        .news-card {
            transition: var(--transition-base);
        }
        .news-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lift);
        }
        .news-card:hover .news-img img {
            transform: scale(1.05);
        }
        .news-img {
            overflow: hidden;
            border-radius: var(--radius-sm) var(--radius-sm) 0 0;
        }
        .news-img img {
            transition: transform 0.5s ease;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .sidebar-card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
        }
        .data-point {
            padding: 1rem 0;
            border-bottom: 1px solid var(--line);
        }
        .data-point:last-child {
            border-bottom: none;
        }
        .footer-link {
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s ease;
            font-size: 0.9rem;
        }
        .footer-link:hover {
            color: var(--amber-400);
        }
        .faq-item {
            border-bottom: 1px solid var(--line);
            padding: 1.25rem 0;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 0.5rem;
        }
        .cta-band {
            background: linear-gradient(135deg, #3d0a0a 0%, #711d1d 50%, #a42d2d 100%);
            border-radius: var(--radius-xl);
            position: relative;
            overflow: hidden;
        }
        .cta-band::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: rgba(251, 191, 36, 0.08);
            border-radius: 50%;
            pointer-events: none;
        }
        .breadcrumb-wrapper {
            background: #f5efe9;
            border-bottom: 1px solid var(--line);
            padding: 0.75rem 0;
        }
        .page-header {
            padding: 3rem 0 2rem;
            background: #fdfbf8;
            border-bottom: 1px solid var(--line);
        }
        @media (max-width: 1024px) {
            .container-web {
                padding-left: 1.25rem;
                padding-right: 1.25rem;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none !important;
            }
            .mobile-toggle {
                display: flex !important;
            }
            .section-gap {
                padding-top: 3rem;
                padding-bottom: 3rem;
            }
            .section-gap-sm {
                padding-top: 2rem;
                padding-bottom: 2rem;
            }
        }
        @media (max-width: 520px) {
            .container-web {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .page-header {
                padding: 2rem 0 1.5rem;
            }
        }

/* roulang page: category1 */
:root {
            --brand-700: #a42d2d;
            --brand-800: #882828;
            --brand-900: #711d1d;
            --brand-950: #3d0a0a;
            --amber-400: #fbbf24;
            --amber-500: #f59e0b;
            --amber-600: #d97706;
            --ink: #1a1111;
            --paper: #faf7f2;
            --muted: #6b5b5b;
            --line: #e8e0d8;
            --card: #ffffff;
            --radius-sm: 0.75rem;
            --radius-md: 1rem;
            --radius-lg: 1.25rem;
            --radius-xl: 1.75rem;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-soft: 0 8px 30px rgba(0, 0, 0, 0.06);
            --shadow-lift: 0 10px 40px rgba(0, 0, 0, 0.10);
            --transition-base: all 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'system-ui', sans-serif;
            background: var(--paper);
            color: var(--ink);
            line-height: 1.75;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        select {
            font: inherit;
        }
        button {
            cursor: pointer;
        }
        .container-web {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        .section-gap {
            padding-top: 4.5rem;
            padding-bottom: 4.5rem;
        }
        .section-gap-sm {
            padding-top: 3rem;
            padding-bottom: 3rem;
        }
        .bg-brand-gradient {
            background: linear-gradient(135deg, #3d0a0a 0%, #711d1d 40%, #a42d2d 75%, #c43a3a 100%);
        }
        .bg-brand-deep {
            background: #2e0707;
        }
        .text-amber-glow {
            color: var(--amber-400);
        }
        .border-line-light {
            border-color: rgba(255, 255, 255, 0.12);
        }
        .border-line-soft {
            border-color: var(--line);
        }
        .shadow-card-soft {
            box-shadow: var(--shadow-card);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.85rem 1.75rem;
            background: #a42d2d;
            color: #ffffff;
            border-radius: 9999px;
            font-weight: 600;
            letter-spacing: 0.01em;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            border: none;
            font-size: 1rem;
            gap: 0.5rem;
        }
        .btn-primary:hover {
            background: #882828;
            transform: translateY(-1px);
            box-shadow: 0 14px 35px rgba(164, 45, 45, 0.28);
        }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(251, 191, 36, 0.7);
            outline-offset: 2px;
        }
        .btn-ghost-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.85rem 1.75rem;
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
            border: 1px solid rgba(255, 255, 255, 0.35);
            border-radius: 9999px;
            font-weight: 500;
            transition: background 0.25s ease, border-color 0.25s ease;
            gap: 0.5rem;
            font-size: 1rem;
        }
        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, 0.16);
            border-color: rgba(255, 255, 255, 0.6);
        }
        .btn-amber {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.85rem 1.75rem;
            background: #f59e0b;
            color: #1a1111;
            border-radius: 9999px;
            font-weight: 700;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            border: none;
            gap: 0.5rem;
            font-size: 1rem;
        }
        .btn-amber:hover {
            background: #fbbf24;
            transform: translateY(-1px);
            box-shadow: 0 14px 35px rgba(245, 158, 11, 0.3);
        }
        .btn-amber:focus-visible {
            outline: 3px solid rgba(164, 45, 45, 0.5);
            outline-offset: 2px;
        }
        .btn-sm {
            padding: 0.5rem 1.15rem;
            font-size: 0.9rem;
        }
        .tag-amber {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            background: rgba(251, 191, 36, 0.16);
            color: #b45309;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .tag-red {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            background: rgba(164, 45, 45, 0.08);
            color: #a42d2d;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .divider-soft {
            height: 1px;
            background: var(--line);
            border: none;
            margin: 0;
        }
        .nav-link {
            position: relative;
            font-weight: 500;
            color: #3f2e2e;
            padding: 0.5rem 0;
            transition: color 0.2s ease;
            font-size: 0.95rem;
        }
        .nav-link:hover {
            color: #a42d2d;
        }
        .nav-link.active {
            color: #a42d2d;
            font-weight: 700;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 100%;
            height: 2px;
            background: #a42d2d;
            border-radius: 2px;
        }
        .mobile-menu {
            display: none;
        }
        .mobile-menu.open {
            display: block;
        }
        .breadcrumb-item {
            font-size: 0.9rem;
            color: var(--muted);
            transition: color 0.2s ease;
        }
        .breadcrumb-item:hover {
            color: #a42d2d;
        }
        .footer-link {
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s ease;
            font-size: 0.9rem;
        }
        .footer-link:hover {
            color: #fbbf24;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 1.5rem;
        }
        .result-list-item {
            transition: all 0.25s ease;
            border: 1px solid var(--line);
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: 1.5rem;
            margin-bottom: 1rem;
        }
        .result-list-item:hover {
            border-color: #e0c8c0;
            box-shadow: var(--shadow-soft);
        }
        .data-point-card {
            background: #ffffff;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 1.25rem;
            transition: all 0.25s ease;
        }
        .data-point-card:hover {
            border-color: #e0c8c0;
            box-shadow: var(--shadow-soft);
        }
        .faq-item {
            border-bottom: 1px solid var(--line);
            padding: 1.25rem 0;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-item summary {
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--ink);
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .faq-icon {
            transition: transform 0.3s ease;
            flex-shrink: 0;
            color: #a42d2d;
        }
        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
        }
        .faq-item .faq-answer {
            padding-top: 0.75rem;
            color: var(--muted);
            font-size: 0.95rem;
            line-height: 1.8;
        }
        .subscribe-card {
            background: linear-gradient(135deg, #ffffff 0%, #fdf6f5 100%);
            border: 1px solid #e8d8d0;
            border-radius: var(--radius-lg);
            padding: 2rem;
            box-shadow: var(--shadow-card);
        }
        .cta-band {
            background: linear-gradient(135deg, #2e0707 0%, #711d1d 55%, #a42d2d 100%);
            border-radius: var(--radius-xl);
            padding: 3rem 2rem;
            color: #ffffff;
            box-shadow: var(--shadow-lift);
        }
        .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: #a42d2d;
            line-height: 1.2;
        }
        .stat-number.amber-highlight {
            color: #f59e0b;
        }
        .detail-link {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            color: #a42d2d;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all 0.2s ease;
        }
        .detail-link:hover {
            color: #882828;
            gap: 0.55rem;
        }
        .detail-link svg {
            transition: transform 0.2s ease;
        }
        .detail-link:hover svg {
            transform: translateX(2px);
        }
        .cover-image-card {
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 16/9;
            object-fit: cover;
            width: 100%;
        }
        .image-badge {
            position: absolute;
            top: 0.75rem;
            left: 0.75rem;
            background: rgba(164, 45, 45, 0.92);
            color: #ffffff;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            backdrop-filter: blur(4px);
        }
        .relative-img-wrap {
            position: relative;
        }
        @media (max-width: 1024px) {
            .container-web {
                padding-left: 1.25rem;
                padding-right: 1.25rem;
            }
            .section-gap {
                padding-top: 3.5rem;
                padding-bottom: 3.5rem;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .mobile-toggle {
                display: flex !important;
            }
            .section-gap {
                padding-top: 2.75rem;
                padding-bottom: 2.75rem;
            }
            .section-gap-sm {
                padding-top: 2rem;
                padding-bottom: 2rem;
            }
            .result-list-item {
                padding: 1.1rem;
            }
            .subscribe-card {
                padding: 1.5rem;
            }
            .cta-band {
                padding: 2rem 1.25rem;
            }
        }
        @media (max-width: 520px) {
            .container-web {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .btn-primary,
            .btn-amber {
                padding: 0.7rem 1.25rem;
                font-size: 0.9rem;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .faq-item summary {
                font-size: 0.9rem;
            }
        }

/* roulang page: category5 */
:root {
            --brand-700: #a42d2d;
            --brand-800: #882828;
            --brand-900: #711d1d;
            --brand-950: #3d0a0a;
            --amber-400: #fbbf24;
            --amber-500: #f59e0b;
            --amber-600: #d97706;
            --ink: #1a1111;
            --paper: #faf7f2;
            --muted: #6b5b5b;
            --line: #e8e0d8;
            --card: #ffffff;
            --radius-sm: 0.75rem;
            --radius-md: 1rem;
            --radius-lg: 1.25rem;
            --radius-xl: 1.75rem;
            --shadow-card: 0 1px 3px rgba(0,0,0,0.04), 0 8px 24px rgba(0,0,0,0.06);
            --shadow-soft: 0 8px 30px rgba(0,0,0,0.06);
            --shadow-lift: 0 10px 40px rgba(0,0,0,0.10);
            --transition-base: all 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'system-ui', sans-serif;
            background: var(--paper);
            color: var(--ink);
            line-height: 1.75;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }
        *, *::before, *::after {
            box-sizing: border-box;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        img {
            max-width: 100%;
            display: block;
            height: auto;
        }
        button, input, select, textarea {
            font: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
            background: none;
            border: none;
        }
        ul, ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        h1, h2, h3, h4, h5, h6, p {
            margin-top: 0;
        }
        hr {
            border: none;
            height: 1px;
            background: var(--line);
            margin: 0;
        }
        .container-web {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        .section-gap {
            padding-top: 4.5rem;
            padding-bottom: 4.5rem;
        }
        .section-gap-sm {
            padding-top: 3rem;
            padding-bottom: 3rem;
        }
        .bg-brand-gradient {
            background: linear-gradient(135deg, #3d0a0a 0%, #711d1d 40%, #a42d2d 75%, #c43a3a 100%);
        }
        .bg-brand-deep {
            background: #2e0707;
        }
        .text-amber-glow {
            color: var(--amber-400);
        }
        .border-line-light {
            border-color: rgba(255,255,255,0.12);
        }
        .border-line-soft {
            border-color: var(--line);
        }
        .shadow-card-soft {
            box-shadow: var(--shadow-card);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.85rem 1.75rem;
            background: #a42d2d;
            color: #ffffff;
            border-radius: 9999px;
            font-weight: 600;
            letter-spacing: 0.01em;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            border: none;
            font-size: 1rem;
            gap: 0.5rem;
            line-height: 1.5;
        }
        .btn-primary:hover {
            background: #882828;
            transform: translateY(-1px);
            box-shadow: 0 14px 35px rgba(164, 45, 45, 0.28);
        }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(251, 191, 36, 0.7);
            outline-offset: 2px;
        }
        .btn-ghost-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.85rem 1.75rem;
            background: rgba(255,255,255,0.08);
            color: #ffffff;
            border: 1px solid rgba(255,255,255,0.35);
            border-radius: 9999px;
            font-weight: 500;
            transition: background 0.25s ease, border-color 0.25s ease;
            gap: 0.5rem;
            font-size: 1rem;
            line-height: 1.5;
        }
        .btn-ghost-light:hover {
            background: rgba(255,255,255,0.16);
            border-color: rgba(255,255,255,0.6);
        }
        .btn-amber {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.85rem 1.75rem;
            background: #f59e0b;
            color: #1a1111;
            border-radius: 9999px;
            font-weight: 700;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            border: none;
            gap: 0.5rem;
            font-size: 1rem;
            line-height: 1.5;
        }
        .btn-amber:hover {
            background: #fbbf24;
            transform: translateY(-1px);
            box-shadow: 0 14px 35px rgba(245, 158, 11, 0.3);
        }
        .btn-amber:focus-visible {
            outline: 3px solid rgba(164, 45, 45, 0.5);
            outline-offset: 2px;
        }
        .btn-sm {
            padding: 0.5rem 1.15rem;
            font-size: 0.9rem;
        }
        .tag-amber {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            background: rgba(251, 191, 36, 0.16);
            color: #b45309;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            line-height: 1.5;
        }
        .tag-red {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            background: rgba(164, 45, 45, 0.08);
            color: #a42d2d;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            line-height: 1.5;
        }
        .divider-soft {
            height: 1px;
            background: var(--line);
            border: none;
            margin: 0;
        }
        .nav-link {
            position: relative;
            font-weight: 500;
            color: #3f2e2e;
            padding: 0.5rem 0;
            transition: color 0.2s ease;
            font-size: 0.95rem;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: #a42d2d;
        }
        .nav-link.active {
            color: #a42d2d;
            font-weight: 700;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 100%;
            height: 2px;
            background: #a42d2d;
            border-radius: 2px;
        }
        .mobile-menu {
            display: none;
        }
        .mobile-menu.open {
            display: block;
        }
        .breadcrumb-item {
            font-size: 0.9rem;
            color: var(--muted);
            transition: color 0.2s ease;
        }
        .breadcrumb-item:hover {
            color: #a42d2d;
        }
        .breadcrumb-item.current {
            color: #a42d2d;
            font-weight: 600;
        }
        .breadcrumb-sep {
            color: #c4b5b5;
            margin: 0 0.5rem;
            font-size: 0.8rem;
        }
        .nav-desktop {
            display: flex;
        }
        .mobile-toggle {
            display: none;
        }
        .faq-card {
            background: var(--card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 1.75rem 2rem;
            border: 1px solid var(--line);
            transition: var(--transition-base);
        }
        .faq-card:hover {
            box-shadow: var(--shadow-soft);
            border-color: #d8cac2;
            transform: translateY(-2px);
        }
        .faq-question {
            font-weight: 700;
            font-size: 1.08rem;
            color: #2a1a1a;
            margin-bottom: 0.65rem;
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            line-height: 1.6;
        }
        .faq-question .faq-icon {
            color: #a42d2d;
            flex-shrink: 0;
            margin-top: 0.2rem;
        }
        .faq-answer {
            color: #4a3a3a;
            font-size: 0.97rem;
            line-height: 1.85;
            padding-left: 1.7rem;
        }
        .help-topic-card {
            background: var(--card);
            border-radius: var(--radius-md);
            padding: 1.5rem 1.75rem;
            border: 1px solid var(--line);
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            display: block;
            height: 100%;
        }
        .help-topic-card:hover {
            box-shadow: var(--shadow-soft);
            border-color: #c9b8ae;
            transform: translateY(-3px);
        }
        .help-topic-card .topic-icon {
            width: 2.75rem;
            height: 2.75rem;
            border-radius: 0.85rem;
            background: rgba(164, 45, 45, 0.08);
            color: #a42d2d;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-bottom: 1rem;
        }
        .help-topic-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #2a1a1a;
            margin-bottom: 0.5rem;
            line-height: 1.5;
        }
        .help-topic-card p {
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .side-data-card {
            background: var(--card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--line);
            padding: 2rem 1.75rem;
        }
        .side-data-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.85rem 0;
            border-bottom: 1px solid var(--line);
        }
        .side-data-item:last-child {
            border-bottom: none;
        }
        .side-data-label {
            font-size: 0.92rem;
            color: var(--muted);
        }
        .side-data-value {
            font-size: 1.3rem;
            font-weight: 700;
            color: #a42d2d;
        }
        .subscribe-card {
            background: linear-gradient(135deg, #3d0a0a 0%, #711d1d 60%, #a42d2d 100%);
            border-radius: var(--radius-xl);
            padding: 2.5rem 2.75rem;
            color: #ffffff;
            box-shadow: var(--shadow-lift);
        }
        .subscribe-card h3 {
            color: #ffffff;
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
        }
        .subscribe-card p {
            color: rgba(255,255,255,0.75);
            font-size: 0.98rem;
            margin-bottom: 1.25rem;
            max-width: 480px;
        }
        .cta-banner {
            background: linear-gradient(135deg, #3d0a0a 0%, #711d1d 45%, #a42d2d 100%);
            border-radius: var(--radius-xl);
            padding: 3.5rem 3rem;
            color: #ffffff;
            box-shadow: var(--shadow-lift);
            text-align: center;
        }
        .cta-banner h2 {
            color: #ffffff;
            font-size: 1.85rem;
            font-weight: 800;
            margin-bottom: 1rem;
            line-height: 1.4;
        }
        .cta-banner p {
            color: rgba(255,255,255,0.75);
            font-size: 1.05rem;
            margin-bottom: 1.8rem;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }
        .brand-intro-card {
            background: #fffaf5;
            border-radius: var(--radius-lg);
            border: 1px solid var(--line);
            padding: 2.25rem 2.5rem;
            box-shadow: var(--shadow-card);
        }
        .brand-intro-card h2 {
            font-size: 1.45rem;
            font-weight: 700;
            color: #2a1a1a;
            margin-bottom: 1rem;
        }
        .brand-intro-card p {
            font-size: 1rem;
            color: #4a3a3a;
            line-height: 1.9;
        }
        .footer-link {
            color: rgba(255,255,255,0.65);
            transition: color 0.2s ease;
            font-size: 0.9rem;
        }
        .footer-link:hover {
            color: #fbbf24;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            padding-top: 1.5rem;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.55);
        }
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
        }
        .faq-list-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 2rem;
            align-items: start;
        }
        .faq-main-list {
            display: flex;
            flex-direction: column;
            gap: 1.25rem;
        }
        .side-sticky {
            position: sticky;
            top: 100px;
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        .hero-help {
            background: linear-gradient(135deg, #3d0a0a 0%, #711d1d 50%, #a42d2d 100%);
            border-radius: var(--radius-xl);
            padding: 3rem 3rem;
            color: #ffffff;
            box-shadow: var(--shadow-lift);
            position: relative;
            overflow: hidden;
        }
        .hero-help::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -15%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            pointer-events: none;
        }
        .hero-help h1 {
            color: #ffffff;
            font-size: 2.25rem;
            font-weight: 800;
            margin-bottom: 1rem;
            line-height: 1.35;
            position: relative;
            z-index: 1;
        }
        .hero-help .hero-desc {
            color: rgba(255,255,255,0.8);
            font-size: 1.05rem;
            max-width: 620px;
            line-height: 1.8;
            position: relative;
            z-index: 1;
        }
        .breadcrumb-wrap {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            margin-bottom: 2rem;
            padding: 0.75rem 1rem;
            background: #fffaf5;
            border-radius: var(--radius-sm);
            border: 1px solid var(--line);
        }
        .related-faq-item {
            background: #fffaf5;
            border-radius: var(--radius-md);
            padding: 1.25rem 1.5rem;
            border: 1px solid var(--line);
            transition: var(--transition-base);
        }
        .related-faq-item:hover {
            border-color: #c9b8ae;
            box-shadow: var(--shadow-soft);
        }
        .related-faq-item h4 {
            font-size: 0.98rem;
            font-weight: 700;
            color: #2a1a1a;
            margin-bottom: 0.5rem;
        }
        .related-faq-item p {
            font-size: 0.9rem;
            color: var(--muted);
            line-height: 1.75;
            margin-bottom: 0;
        }
        @media (max-width: 1024px) {
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .faq-list-grid {
                grid-template-columns: 1fr;
            }
            .side-sticky {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 1.25rem;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .mobile-toggle {
                display: inline-flex;
            }
            .mobile-menu {
                display: none;
                margin-top: 1rem;
            }
            .mobile-menu.open {
                display: block;
            }
            .hero-help {
                padding: 2rem 1.5rem;
            }
            .hero-help h1 {
                font-size: 1.7rem;
            }
            .faq-card {
                padding: 1.35rem 1.5rem;
            }
            .faq-answer {
                padding-left: 0;
                margin-top: 0.4rem;
            }
            .faq-question {
                font-size: 1rem;
            }
            .subscribe-card {
                padding: 2rem 1.5rem;
            }
            .cta-banner {
                padding: 2.5rem 1.5rem;
            }
            .cta-banner h2 {
                font-size: 1.45rem;
            }
            .brand-intro-card {
                padding: 1.75rem 1.5rem;
            }
            .side-sticky {
                grid-template-columns: 1fr;
            }
            .section-gap {
                padding-top: 3rem;
                padding-bottom: 3rem;
            }
        }
        @media (max-width: 520px) {
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .hero-help h1 {
                font-size: 1.4rem;
            }
            .hero-help .hero-desc {
                font-size: 0.95rem;
            }
            .faq-list-grid {
                gap: 1.25rem;
            }
            .faq-card {
                padding: 1.1rem 1.2rem;
            }
            .container-web {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

/* roulang page: category4 */
:root {
            --brand-700: #a42d2d;
            --brand-800: #882828;
            --brand-900: #711d1d;
            --brand-950: #3d0a0a;
            --amber-400: #fbbf24;
            --amber-500: #f59e0b;
            --amber-600: #d97706;
            --ink: #1a1111;
            --paper: #faf7f2;
            --muted: #6b5b5b;
            --line: #e8e0d8;
            --card: #ffffff;
            --radius-sm: 0.75rem;
            --radius-md: 1rem;
            --radius-lg: 1.25rem;
            --radius-xl: 1.75rem;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-soft: 0 8px 30px rgba(0, 0, 0, 0.06);
            --shadow-lift: 0 10px 40px rgba(0, 0, 0, 0.10);
            --transition-base: all 0.25s ease;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'system-ui', sans-serif;
            background: var(--paper);
            color: var(--ink);
            line-height: 1.75;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button,
        input,
        select {
            font: inherit;
        }

        button {
            cursor: pointer;
        }

        .container-web {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        .section-gap {
            padding-top: 4.5rem;
            padding-bottom: 4.5rem;
        }

        .section-gap-sm {
            padding-top: 3rem;
            padding-bottom: 3rem;
        }

        .bg-brand-gradient {
            background: linear-gradient(135deg, #3d0a0a 0%, #711d1d 40%, #a42d2d 75%, #c43a3a 100%);
        }

        .bg-brand-deep {
            background: #2e0707;
        }

        .text-amber-glow {
            color: var(--amber-400);
        }

        .border-line-light {
            border-color: rgba(255, 255, 255, 0.12);
        }

        .border-line-soft {
            border-color: var(--line);
        }

        .shadow-card-soft {
            box-shadow: var(--shadow-card);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.85rem 1.75rem;
            background: #a42d2d;
            color: #ffffff;
            border-radius: 9999px;
            font-weight: 600;
            letter-spacing: 0.01em;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            border: none;
            font-size: 1rem;
            gap: 0.5rem;
        }

        .btn-primary:hover {
            background: #882828;
            transform: translateY(-1px);
            box-shadow: 0 14px 35px rgba(164, 45, 45, 0.28);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(251, 191, 36, 0.7);
            outline-offset: 2px;
        }

        .btn-ghost-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.85rem 1.75rem;
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
            border: 1px solid rgba(255, 255, 255, 0.35);
            border-radius: 9999px;
            font-weight: 500;
            transition: background 0.25s ease, border-color 0.25s ease;
            gap: 0.5rem;
            font-size: 1rem;
        }

        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, 0.16);
            border-color: rgba(255, 255, 255, 0.6);
        }

        .btn-amber {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.85rem 1.75rem;
            background: #f59e0b;
            color: #1a1111;
            border-radius: 9999px;
            font-weight: 700;
            transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            border: none;
            gap: 0.5rem;
            font-size: 1rem;
        }

        .btn-amber:hover {
            background: #fbbf24;
            transform: translateY(-1px);
            box-shadow: 0 14px 35px rgba(245, 158, 11, 0.3);
        }

        .btn-amber:focus-visible {
            outline: 3px solid rgba(164, 45, 45, 0.5);
            outline-offset: 2px;
        }

        .btn-sm {
            padding: 0.5rem 1.15rem;
            font-size: 0.9rem;
        }

        .tag-amber {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            background: rgba(251, 191, 36, 0.16);
            color: #b45309;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .tag-red {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            background: rgba(164, 45, 45, 0.08);
            color: #a42d2d;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .divider-soft {
            height: 1px;
            background: var(--line);
            border: none;
            margin: 0;
        }

        .nav-link {
            position: relative;
            font-weight: 500;
            color: #3f2e2e;
            padding: 0.5rem 0;
            transition: color 0.2s ease;
            font-size: 0.95rem;
        }

        .nav-link:hover {
            color: #a42d2d;
        }

        .nav-link.active {
            color: #a42d2d;
            font-weight: 700;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 100%;
            height: 2px;
            background: #a42d2d;
            border-radius: 2px;
        }

        .mobile-menu {
            display: none;
        }

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

        .breadcrumb-item {
            font-size: 0.9rem;
            color: var(--muted);
        }

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

        .breadcrumb-item a:hover {
            color: #a42d2d;
        }

        .breadcrumb-separator {
            font-size: 0.85rem;
            color: #b8a9a9;
            margin: 0 0.5rem;
        }

        .data-card {
            background: var(--card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--line);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            overflow: hidden;
        }

        .data-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lift);
        }

        .metric-value {
            font-size: 2rem;
            font-weight: 800;
            color: #d97706;
            line-height: 1.2;
            letter-spacing: -0.01em;
        }

        .metric-label {
            font-size: 0.9rem;
            color: var(--muted);
            font-weight: 500;
        }

        .sidebar-card {
            background: #fdfbf8;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 1.25rem;
        }

        .sidebar-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: #3f2e2e;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .trend-bar {
            background: #f0e8e0;
            border-radius: 6px;
            height: 10px;
            overflow: hidden;
            flex: 1;
        }

        .trend-bar-fill {
            background: linear-gradient(90deg, #c43a3a, #f59e0b);
            height: 100%;
            border-radius: 6px;
            transition: width 0.6s ease;
        }

        .faq-item {
            background: #ffffff;
            border: 1px solid var(--line);
            border-radius: var(--radius-sm);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: box-shadow 0.2s ease;
        }

        .faq-item:hover {
            box-shadow: var(--shadow-soft);
        }

        .faq-question {
            width: 100%;
            background: #ffffff;
            border: none;
            text-align: left;
            padding: 1.1rem 1.25rem;
            font-weight: 600;
            font-size: 0.98rem;
            color: #3f2e2e;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            transition: background 0.2s ease;
        }

        .faq-question:hover {
            background: #fdf8f3;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 1.25rem;
            color: var(--muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 1.25rem 1.1rem;
        }

        .faq-icon {
            transition: transform 0.3s ease;
            font-size: 0.85rem;
            color: #a42d2d;
        }

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

        .cta-strip {
            background: linear-gradient(135deg, #3d0a0a 0%, #711d1d 50%, #a42d2d 100%);
            border-radius: var(--radius-lg);
            padding: 3rem 2.5rem;
            text-align: center;
            color: #ffffff;
            position: relative;
            overflow: hidden;
        }

        .cta-strip::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 70%;
            height: 220%;
            background: radial-gradient(ellipse, rgba(251, 191, 36, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .footer-link {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: color 0.2s ease;
        }

        .footer-link:hover {
            color: #fbbf24;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.25rem;
            margin-top: 1.5rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
        }

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

            .mobile-toggle {
                display: flex;
            }
        }

        @media (min-width: 1025px) {
            .mobile-toggle {
                display: none;
            }

            .mobile-menu {
                display: none !important;
            }
        }

        @media (max-width: 768px) {
            .section-gap {
                padding-top: 3rem;
                padding-bottom: 3rem;
            }

            .section-gap-sm {
                padding-top: 2rem;
                padding-bottom: 2rem;
            }

            .metric-value {
                font-size: 1.5rem;
            }

            .cta-strip {
                padding: 2rem 1.25rem;
            }
        }

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

            .breadcrumb-item {
                font-size: 0.8rem;
            }
        }