/* roulang page: index */
:root {
            --primary: #0E3B2E;
            --secondary: #1B5E45;
            --accent: #E8B830;
            --bg-warm: #F7F5EF;
            --bg-dark: #0A2018;
            --card-bg: #FFFFFF;
            --text-main: #1C2420;
            --text-secondary: #5A655F;
            --text-weak: #8A938D;
            --border-warm: #E0DDD2;
            --chart-blue: #2E86AB;
            --chart-orange: #D96C3F;
            --chart-gray: #8A938D;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-default: 0 1px 3px rgba(14, 59, 46, 0.06), 0 1px 2px rgba(14, 59, 46, 0.04);
            --shadow-hover: 0 8px 24px rgba(14, 59, 46, 0.12), 0 2px 6px rgba(14, 59, 46, 0.08);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
            --font-serif: "Source Han Serif SC", "Noto Serif CJK SC", "Songti SC", serif;
            --nav-height: 68px;
            --transition-base: 0.22s ease;
            --transition-image: 0.35s ease;
        }

        *,
        *::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);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--bg-warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

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

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

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

        .container-wide {
            max-width: 1360px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .visually-hidden {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

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

        .section-padding-lg {
            padding: 100px 0;
        }

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

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

        .bg-white {
            background-color: #FFFFFF;
        }

        .bg-dark {
            background-color: var(--bg-dark);
            color: #F0EDE4;
        }

        .bg-primary-soft {
            background-color: rgba(14, 59, 46, 0.04);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--secondary);
            background-color: rgba(27, 94, 69, 0.08);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--primary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-subtitle {
            font-size: 18px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 24px;
            max-width: 720px;
        }

        .text-center {
            text-align: center;
        }

        .text-left {
            text-align: left;
        }

        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .mb-32 {
            margin-bottom: 32px;
        }
        .mb-48 {
            margin-bottom: 48px;
        }
        .mb-64 {
            margin-bottom: 64px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mt-48 {
            margin-top: 48px;
        }

        .btn {
            display: inline-block;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
            cursor: pointer;
            border: none;
            text-align: center;
            transition: all var(--transition-base);
            text-decoration: none;
            -webkit-appearance: none;
            appearance: none;
            min-height: 48px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #FFFFFF;
            border: none;
        }

        .btn-primary:hover {
            background-color: var(--bg-dark);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(14, 59, 46, 0.25);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--secondary);
            border: 2px solid var(--secondary);
        }

        .btn-secondary:hover {
            background-color: rgba(27, 94, 69, 0.1);
            color: var(--secondary);
            transform: translateY(-2px);
        }

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

        .btn-ghost {
            background-color: transparent;
            color: #FFFFFF;
            border: 2px solid #FFFFFF;
        }

        .btn-ghost:hover {
            background-color: #FFFFFF;
            color: var(--primary);
            transform: translateY(-2px);
        }

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

        .btn-sm {
            padding: 8px 20px;
            font-size: 13px;
            min-height: 40px;
            border-radius: var(--radius-sm);
        }

        .btn-link {
            display: inline-block;
            background: none;
            border: none;
            padding: 0;
            color: var(--secondary);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            text-decoration: none;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .btn-link:hover {
            color: var(--primary);
            text-decoration: underline;
        }

        .badge {
            display: inline-block;
            padding: 2px 10px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.6;
        }

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

        .badge-secondary {
            background-color: rgba(27, 94, 69, 0.1);
            color: var(--secondary);
        }

        .badge-neutral {
            background-color: rgba(138, 147, 141, 0.15);
            color: var(--text-secondary);
        }

        .card {
            background: var(--card-bg);
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-default);
            transition: all var(--transition-base);
            overflow: hidden;
        }

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

        .card-content {
            padding: 28px 32px;
        }

        .card-content-sm {
            padding: 20px 24px;
        }

        .img-hover {
            overflow: hidden;
            border-radius: var(--radius-md);
        }

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

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

        .ratio-16-9 {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            border-radius: var(--radius-md);
            background-color: var(--bg-warm);
        }

        .ratio-4-3 {
            aspect-ratio: 4 / 3;
            overflow: hidden;
            border-radius: var(--radius-md);
            background-color: var(--bg-warm);
        }

        .ratio-1-1 {
            aspect-ratio: 1 / 1;
            overflow: hidden;
            border-radius: var(--radius-md);
            background-color: var(--bg-warm);
        }

        .ratio-16-9 img,
        .ratio-4-3 img,
        .ratio-1-1 img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ==================== HEADER / NAV ==================== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(224, 221, 210, 0.5);
            height: var(--nav-height);
            transition: box-shadow var(--transition-base), background-color var(--transition-base);
        }

        .site-header.scrolled {
            background-color: rgba(255, 255, 255, 0.98);
            box-shadow: 0 4px 20px rgba(14, 59, 46, 0.08);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 16px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: -0.02em;
            line-height: 1.2;
        }

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

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background-color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 18px;
            flex-shrink: 0;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-menu a.nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
            position: relative;
            white-space: nowrap;
            line-height: 1.5;
            min-height: 44px;
            display: flex;
            align-items: center;
        }

        .nav-menu a.nav-link:hover {
            color: var(--primary);
            background-color: rgba(14, 59, 46, 0.05);
        }

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

        .nav-menu a.nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background-color: var(--accent);
            border-radius: 2px;
        }

        .nav-cta {
            flex-shrink: 0;
            margin-left: 8px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 10px;
            border-radius: var(--radius-sm);
            color: var(--primary);
            min-height: 44px;
            min-width: 44px;
            align-items: center;
            justify-content: center;
        }

        .nav-toggle .bar {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--primary);
            margin: 5px 0;
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .nav-toggle.open .bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.open .bar:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open .bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ==================== HERO ==================== */
        .hero {
            min-height: 580px;
            display: flex;
            align-items: center;
            position: relative;
            background: linear-gradient(135deg, rgba(10, 32, 24, 0.88) 30%, rgba(14, 59, 46, 0.75) 100%), url('/assets/images/backpic/back-1.jpg') center / cover no-repeat;
            padding: 80px 0;
            overflow: hidden;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hero-content {
            color: #FFFFFF;
        }

        .hero-content .hero-kicker {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--accent);
            background-color: rgba(232, 184, 48, 0.12);
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 20px;
            border: 1px solid rgba(232, 184, 48, 0.3);
        }

        .hero-content h1 {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.35;
            color: #FFFFFF;
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }

        .hero-content .hero-desc {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(240, 237, 228, 0.85);
            margin-bottom: 28px;
            max-width: 520px;
        }

        .hero-cta-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }

        .hero-kpi-row {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            padding-top: 24px;
            border-top: 1px solid rgba(240, 237, 228, 0.2);
        }

        .hero-kpi {
            text-align: left;
            min-width: 120px;
        }

        .hero-kpi .kpi-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
        }

        .hero-kpi .kpi-label {
            font-size: 12px;
            color: rgba(240, 237, 228, 0.65);
            margin-top: 4px;
        }

        .hero-visual {
            position: relative;
            z-index: 1;
        }

        .hero-visual-img {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 20px 48px rgba(0, 0, 0, 0.3);
            transform: rotate(1.5deg);
            transition: transform var(--transition-image);
            aspect-ratio: 4 / 3;
        }

        .hero-visual-img:hover {
            transform: rotate(0deg) scale(1.02);
        }

        .hero-visual-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }

        .hero-visual-badge {
            position: absolute;
            bottom: -18px;
            left: -12px;
            background-color: var(--accent);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 16px rgba(232, 184, 48, 0.4);
            z-index: 3;
            letter-spacing: 0.02em;
        }

        /* ==================== DATA STRIP ==================== */
        .data-strip {
            background-color: #FFFFFF;
            border-bottom: 1px solid var(--border-warm);
        }

        .data-strip-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            padding: 32px 0;
        }

        .data-strip-item {
            text-align: center;
            padding: 12px 16px;
            border-right: 1px solid var(--border-warm);
        }

        .data-strip-item:last-child {
            border-right: none;
        }

        .data-strip-item .ds-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }

        .data-strip-item .ds-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 6px;
        }

        /* ==================== FEATURE SECTION ==================== */
        .feature-alt {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 80px;
            align-items: center;
            margin-bottom: 72px;
        }

        .feature-alt:last-child {
            margin-bottom: 0;
        }

        .feature-alt.reverse .feature-alt-img {
            order: 2;
        }

        .feature-alt.reverse .feature-alt-text {
            order: 1;
        }

        .feature-alt-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-default);
            aspect-ratio: 4 / 3;
            position: relative;
            transition: box-shadow var(--transition-base);
        }

        .feature-alt-img:hover {
            box-shadow: var(--shadow-hover);
        }

        .feature-alt-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .feature-alt-text h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .feature-alt-text p {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background-color: rgba(27, 94, 69, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary);
            font-size: 22px;
            margin-bottom: 16px;
        }

        /* ==================== DEEP CONTENT ==================== */
        .deep-content {
            background-color: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 56px 64px;
            border: 1px solid var(--border-warm);
            box-shadow: var(--shadow-default);
        }

        .deep-content h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.4;
            margin-bottom: 24px;
        }

        .deep-content p {
            font-size: 16px;
            line-height: 2.0;
            color: var(--text-main);
            margin-bottom: 20px;
            font-family: var(--font-serif);
            max-width: 720px;
        }

        .deep-content .dc-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin: 24px 0;
            aspect-ratio: 16 / 7;
        }

        .deep-content .dc-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ==================== SCENARIO ==================== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

        .scenario-card {
            background: #FFFFFF;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-md);
            padding: 28px 32px;
            box-shadow: var(--shadow-default);
            transition: all var(--transition-base);
            position: relative;
        }

        .scenario-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--secondary);
            transform: translateY(-3px);
        }

        .scenario-card .sc-num {
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            background-color: rgba(232, 184, 48, 0.12);
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
        }

        .scenario-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .scenario-card p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
        }

        /* ==================== PROCESS ==================== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .process-step {
            text-align: center;
            padding: 28px 20px;
            background: #FFFFFF;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-default);
            transition: all var(--transition-base);
        }

        .process-step:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--secondary);
        }

        .process-step .ps-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background-color: var(--primary);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin: 0 auto 16px;
        }

        .process-step h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ==================== CASE STUDY ==================== */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

        .case-card {
            background: #FFFFFF;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-md);
            padding: 32px 36px;
            box-shadow: var(--shadow-default);
            transition: all var(--transition-base);
        }

        .case-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--secondary);
            transform: translateY(-3px);
        }

        .case-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .case-card p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }

        .case-metrics {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            padding-top: 16px;
            border-top: 1px solid var(--border-warm);
        }

        .case-metrics .cm-item {
            text-align: center;
            flex: 1;
            min-width: 80px;
        }

        .case-metrics .cm-item .cm-num {
            font-size: 24px;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.2;
        }

        .case-metrics .cm-item .cm-label {
            font-size: 12px;
            color: var(--text-weak);
            margin-top: 4px;
        }

        /* ==================== PRICING ==================== */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            align-items: start;
        }

        .price-card {
            background: #FFFFFF;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-default);
            transition: all var(--transition-base);
            position: relative;
            text-align: left;
        }

        .price-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--secondary);
            transform: translateY(-4px);
        }

        .price-card.highlight {
            border: 2px solid var(--accent);
            position: relative;
            transform: scale(1.03);
        }

        .price-card.highlight:hover {
            transform: scale(1.03) translateY(-4px);
        }

        .price-card .pc-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background-color: var(--accent);
            color: var(--primary);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 16px;
            border-radius: 20px;
            white-space: nowrap;
            z-index: 2;
        }

        .price-card .pc-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .price-card .pc-price {
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 16px;
        }

        .price-card .pc-price .pc-unit {
            font-size: 16px;
            font-weight: 400;
            color: var(--text-secondary);
        }

        .price-card ul {
            list-style: none;
            padding: 0;
            margin: 0 0 24px 0;
        }

        .price-card ul li {
            padding: 8px 0;
            font-size: 14px;
            color: var(--text-secondary);
            border-bottom: 1px solid rgba(224, 221, 210, 0.5);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.6;
        }

        .price-card ul li::before {
            content: '✓';
            color: var(--secondary);
            font-weight: 700;
            flex-shrink: 0;
        }

        /* ==================== TESTIMONIAL ==================== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .testimonial-card {
            background: #FFFFFF;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-md);
            padding: 28px 32px;
            box-shadow: var(--shadow-default);
            transition: all var(--transition-base);
        }

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

        .testimonial-card .tc-stars {
            color: var(--accent);
            font-size: 16px;
            margin-bottom: 12px;
            letter-spacing: 2px;
        }

        .testimonial-card .tc-quote {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .testimonial-card .tc-author {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 600;
        }

        /* ==================== NEWS ==================== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item {
            display: grid;
            grid-template-columns: 160px 1fr auto;
            gap: 24px;
            padding: 24px 20px;
            border: 1px solid transparent;
            border-bottom: 1px solid var(--border-warm);
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
            position: relative;
            align-items: center;
        }

        .news-item:hover {
            background-color: rgba(14, 59, 46, 0.03);
            border-color: var(--border-warm);
            border-left: 3px solid var(--secondary);
        }

        .news-item .news-img {
            border-radius: var(--radius-sm);
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }

        .news-item .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-item .news-content {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

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

        .news-item .news-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.5;
        }

        .news-item .news-title a {
            color: var(--text-main);
            text-decoration: none;
            transition: color var(--transition-base);
        }

        .news-item .news-title a:hover {
            color: var(--secondary);
        }

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

        /* ==================== BRAND INTRO ==================== */
        .brand-intro {
            background-color: #FFFFFF;
            border-left: 4px solid var(--accent);
            padding: 36px 40px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            box-shadow: var(--shadow-default);
        }

        .brand-intro p {
            font-size: 16px;
            line-height: 2.0;
            color: var(--text-main);
            font-family: var(--font-serif);
        }

        /* ==================== FAQ ==================== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: #FFFFFF;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-default);
            transition: all var(--transition-base);
            overflow: hidden;
        }

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

        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            line-height: 1.5;
            gap: 16px;
            min-height: 44px;
        }

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

        .faq-item .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary);
            transition: transform var(--transition-base);
        }

        .faq-item .faq-question.open .faq-icon {
            transform: rotate(90deg);
        }

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 24px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
        }

        .faq-item .faq-answer.open {
            max-height: 500px;
            padding: 0 24px 20px;
        }

        /* ==================== CTA ==================== */
        .section-cta {
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary) 100%);
            color: #FFFFFF;
            text-align: center;
            padding: 80px 24px;
        }

        .section-cta h2 {
            font-size: 30px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
        }

        .section-cta p {
            font-size: 17px;
            color: rgba(240, 237, 228, 0.8);
            margin-bottom: 28px;
            line-height: 1.8;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ==================== FLOATING CTA ==================== */
        .floating-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 99;
            background-color: rgba(14, 59, 46, 0.95);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-top: 1px solid rgba(232, 184, 48, 0.3);
            padding: 12px 24px;
            display: none;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            transform: translateY(100%);
            transition: transform 0.3s ease;
        }

        .floating-cta.visible {
            display: flex;
            transform: translateY(0);
        }

        .floating-cta .fc-text {
            color: #FFFFFF;
            font-size: 14px;
            font-weight: 500;
        }

        .floating-cta .fc-text strong {
            color: var(--accent);
        }

        /* ==================== FOOTER ==================== */
        .site-footer {
            background-color: var(--bg-dark);
            color: rgba(240, 237, 228, 0.7);
            padding: 64px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 48px;
        }

        .footer-brand .fb-logo {
            font-size: 24px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-brand .fb-logo .fb-icon {
            width: 32px;
            height: 32px;
            border-radius: 6px;
            background-color: var(--accent);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
        }

        .footer-brand .fb-desc {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(240, 237, 228, 0.6);
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            color: rgba(240, 237, 228, 0.65);
            text-decoration: none;
            font-size: 13px;
            transition: color var(--transition-base);
            display: inline-block;
            line-height: 1.6;
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-col .fc-contact {
            font-size: 13px;
            line-height: 1.8;
            color: rgba(240, 237, 228, 0.6);
        }

        .footer-bottom {
            border-top: 1px solid rgba(240, 237, 228, 0.15);
            padding-top: 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            font-size: 13px;
            color: rgba(240, 237, 228, 0.5);
        }

        .footer-bottom .fb-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom .fb-links a {
            color: rgba(240, 237, 228, 0.5);
            text-decoration: none;
            font-size: 13px;
            transition: color var(--transition-base);
        }

        .footer-bottom .fb-links a:hover {
            color: var(--accent);
        }

        /* ==================== RESPONSIVE ==================== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero {
                min-height: auto;
                padding: 60px 0;
            }
            .hero-content h1 {
                font-size: 32px;
            }
            .data-strip-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .data-strip-item {
                border-right: none;
                border-bottom: 1px solid var(--border-warm);
            }
            .feature-alt {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .feature-alt.reverse .feature-alt-img {
                order: 1;
            }
            .feature-alt.reverse .feature-alt-text {
                order: 2;
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .case-grid {
                grid-template-columns: 1fr;
            }
            .pricing-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .price-card.highlight {
                transform: scale(1);
            }
            .price-card.highlight:hover {
                transform: scale(1) translateY(-4px);
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .deep-content {
                padding: 40px 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background-color: #FFFFFF;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 16px 24px;
                border-bottom: 2px solid var(--border-warm);
                box-shadow: 0 20px 40px rgba(14, 59, 46, 0.12);
                display: none;
                z-index: 99;
                max-height: calc(100vh - var(--nav-height));
                overflow-y: auto;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a.nav-link {
                padding: 14px 12px;
                border-radius: 0;
                border-bottom: 1px solid rgba(224, 221, 210, 0.5);
                font-size: 15px;
            }
            .nav-menu a.nav-link:last-child {
                border-bottom: none;
            }
            .nav-menu a.nav-link.active::after {
                left: 0;
                right: auto;
                width: 4px;
                height: 100%;
                top: 0;
                bottom: auto;
                background-color: var(--accent);
                border-radius: 0 2px 2px 0;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-cta {
                margin-left: auto;
            }
            .nav-wrapper {
                gap: 8px;
            }
            .section-padding {
                padding: 56px 0;
            }
            .section-padding-lg {
                padding: 72px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .hero-content h1 {
                font-size: 28px;
            }
            .hero-content .hero-desc {
                font-size: 15px;
            }
            .hero-kpi-row {
                gap: 16px;
            }
            .hero-kpi .kpi-number {
                font-size: 22px;
            }
            .data-strip-grid {
                grid-template-columns: 1fr 1fr;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
            }
            .news-item {
                grid-template-columns: 1fr;
                gap: 12px;
                text-align: left;
            }
            .news-item .news-img {
                max-width: 100%;
            }
            .deep-content {
                padding: 28px 20px;
            }
            .deep-content h2 {
                font-size: 22px;
            }
            .deep-content p {
                font-size: 15px;
                line-height: 1.9;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .floating-cta {
                padding: 10px 16px;
            }
            .floating-cta .fc-text {
                font-size: 12px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .container-wide {
                padding: 0 16px;
            }
            .hero {
                padding: 48px 0;
            }
            .hero-content h1 {
                font-size: 24px;
            }
            .hero-cta-group {
                flex-direction: column;
                gap: 12px;
            }
            .hero-cta-group .btn {
                width: 100%;
            }
            .hero-kpi-row {
                flex-direction: column;
                gap: 12px;
            }
            .data-strip-grid {
                grid-template-columns: 1fr;
            }
            .data-strip-item {
                border-bottom: 1px solid var(--border-warm);
                border-right: none;
                padding: 12px 8px;
            }
            .data-strip-item:last-child {
                border-bottom: none;
            }
            .section-title {
                font-size: 22px;
            }
            .deep-content {
                padding: 20px 16px;
                border-radius: var(--radius-md);
            }
            .price-card.highlight {
                transform: scale(1);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .footer-bottom .fb-links {
                justify-content: center;
            }
            .brand-intro {
                padding: 24px 20px;
            }
            .faq-item .faq-question {
                padding: 16px 18px;
                font-size: 15px;
            }
            .faq-item .faq-answer {
                padding: 0 18px;
                font-size: 14px;
            }
            .faq-item .faq-answer.open {
                padding: 0 18px 16px;
            }
        }

/* roulang page: category2 */
:root {
        --primary: #0E3B2E;
        --secondary: #1B5E45;
        --accent: #E8B830;
        --bg-warm: #F7F5EF;
        --bg-dark: #0A2018;
        --card-bg: #FFFFFF;
        --text-main: #1C2420;
        --text-secondary: #5A655F;
        --text-weak: #8A938D;
        --border-warm: #E0DDD2;
        --chart-blue: #2E86AB;
        --chart-orange: #D96C3F;
        --chart-gray: #8A938D;
        --radius-sm: 6px;
        --radius-md: 8px;
        --radius-lg: 12px;
        --shadow-default: 0 1px 3px rgba(14, 59, 46, 0.06), 0 1px 2px rgba(14, 59, 46, 0.04);
        --shadow-hover: 0 8px 24px rgba(14, 59, 46, 0.12), 0 2px 6px rgba(14, 59, 46, 0.08);
        --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
        --font-serif: "Source Han Serif SC", "Noto Serif CJK SC", "Songti SC", serif;
        --nav-height: 68px;
        --transition-base: 0.22s ease;
        --transition-image: 0.35s ease;
    }

    * {
        box-sizing: border-box;
    }

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

    body {
        font-family: var(--font-sans);
        font-size: 16px;
        line-height: 1.8;
        color: var(--text-main);
        background-color: var(--bg-warm);
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        overflow-x: hidden;
        margin: 0;
        padding: 0;
    }

    img {
        max-width: 100%;
        height: auto;
        display: block;
        border-radius: var(--radius-md);
    }

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

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

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

    button,
    input,
    select,
    textarea {
        font-family: inherit;
        font-size: inherit;
    }

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

    .container-wide {
        max-width: 1360px;
        margin: 0 auto;
        padding: 0 24px;
    }

    .section-padding {
        padding: 80px 0;
    }
    .section-padding-lg {
        padding: 100px 0;
    }
    .section-padding-sm {
        padding: 56px 0;
    }

    .section-label {
        display: inline-block;
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        color: var(--secondary);
        background-color: rgba(27, 94, 69, 0.08);
        padding: 4px 14px;
        border-radius: 20px;
        margin-bottom: 16px;
    }

    .section-title {
        font-size: 30px;
        font-weight: 700;
        line-height: 1.4;
        color: var(--primary);
        margin-bottom: 16px;
        letter-spacing: -0.01em;
    }

    .section-subtitle {
        font-size: 18px;
        line-height: 1.8;
        color: var(--text-secondary);
        margin-bottom: 24px;
        max-width: 720px;
    }

    .text-center { text-align: center; }
    .text-left { text-align: left; }

    .btn {
        display: inline-flex;
        padding: 12px 28px;
        border-radius: var(--radius-sm);
        font-size: 15px;
        font-weight: 600;
        line-height: 1.5;
        cursor: pointer;
        border: none;
        text-align: center;
        transition: all var(--transition-base);
        text-decoration: none;
        -webkit-appearance: none;
        appearance: none;
        min-height: 48px;
        align-items: center;
        justify-content: center;
        gap: 8px;
    }

    .btn-primary {
        background-color: var(--primary);
        color: #FFFFFF;
        border: none;
    }
    .btn-primary:hover {
        background-color: var(--bg-dark);
        color: #FFFFFF;
        transform: translateY(-2px);
        box-shadow: 0 4px 16px rgba(14, 59, 46, 0.25);
    }
    .btn-primary:active {
        transform: translateY(1px);
        box-shadow: none;
    }

    .btn-secondary {
        background-color: transparent;
        color: var(--secondary);
        border: 2px solid var(--secondary);
    }
    .btn-secondary:hover {
        background-color: rgba(27, 94, 69, 0.1);
        color: var(--secondary);
        transform: translateY(-2px);
    }
    .btn-secondary:active {
        transform: translateY(1px);
    }

    .btn-ghost {
        background-color: transparent;
        color: #FFFFFF;
        border: 2px solid #FFFFFF;
    }
    .btn-ghost:hover {
        background-color: #FFFFFF;
        color: var(--primary);
        transform: translateY(-2px);
    }
    .btn-ghost:active {
        transform: translateY(1px);
    }

    .btn-sm {
        padding: 8px 20px;
        font-size: 13px;
        min-height: 40px;
        border-radius: var(--radius-sm);
    }

    .btn-link {
        display: inline-flex;
        background: none;
        border: none;
        padding: 0;
        color: var(--secondary);
        font-size: 14px;
        font-weight: 600;
        cursor: pointer;
        text-decoration: none;
        transition: all var(--transition-base);
        align-items: center;
        gap: 6px;
    }
    .btn-link:hover {
        color: var(--primary);
        text-decoration: underline;
    }

    .badge {
        display: inline-block;
        border-radius: 4px;
        font-size: 12px;
        padding: 2px 10px;
        font-weight: 500;
    }
    .badge-hot {
        background-color: var(--accent);
        color: var(--primary);
    }
    .badge-tag {
        background-color: rgba(27, 94, 69, 0.1);
        color: var(--secondary);
    }
    .badge-date {
        background-color: rgba(138, 147, 141, 0.15);
        color: var(--text-secondary);
    }

    /* Header/Nav */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 50;
        background-color: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(10px);
        border-bottom: 1px solid var(--border-warm);
        min-height: var(--nav-height);
        display: flex;
        align-items: center;
        transition: box-shadow var(--transition-base), background-color var(--transition-base);
    }
    .site-header.scrolled {
        background-color: rgba(255, 255, 255, 0.98);
        box-shadow: 0 2px 12px rgba(14, 59, 46, 0.08);
    }
    .nav-wrapper {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        gap: 24px;
    }
    .nav-logo {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        font-size: 20px;
        font-weight: 700;
        color: var(--primary);
        text-decoration: none;
        white-space: nowrap;
        transition: color var(--transition-base);
    }
    .nav-logo:hover { color: var(--primary); }
    .nav-logo-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        background-color: var(--primary);
        color: var(--accent);
        border-radius: var(--radius-sm);
        font-size: 16px;
    }
    .nav-menu {
        display: flex;
        align-items: center;
        gap: 24px;
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .nav-link {
        display: inline-block;
        font-size: 15px;
        font-weight: 500;
        color: var(--text-secondary);
        text-decoration: none;
        padding: 8px 0;
        position: relative;
        transition: color var(--transition-base);
        white-space: nowrap;
    }
    .nav-link::after {
        content: '';
        position: absolute;
        left: 0;
        bottom: 0;
        width: 0;
        height: 2px;
        background-color: var(--accent);
        transition: width var(--transition-base);
    }
    .nav-link:hover { color: var(--primary); }
    .nav-link:hover::after { width: 100%; }
    .nav-link.active {
        color: var(--primary);
        font-weight: 600;
    }
    .nav-link.active::after {
        width: 100%;
    }
    .nav-cta {
        display: flex;
        align-items: center;
        gap: 12px;
        flex-shrink: 0;
    }
    .nav-toggle {
        display: none;
        background: none;
        border: none;
        cursor: pointer;
        padding: 8px;
        min-width: 44px;
        min-height: 44px;
        flex-direction: column;
        justify-content: center;
        gap: 5px;
        border-radius: var(--radius-sm);
    }
    .nav-toggle .bar {
        display: block;
        width: 24px;
        height: 2px;
        background-color: var(--primary);
        border-radius: 1px;
        transition: all var(--transition-base);
    }
    .nav-toggle[aria-expanded="true"] .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    .nav-toggle[aria-expanded="true"] .bar:nth-child(2) {
        opacity: 0;
    }
    .nav-toggle[aria-expanded="true"] .bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    @media (max-width: 1024px) {
        .nav-menu {
            position: fixed;
            top: var(--nav-height);
            right: 0;
            left: 0;
            background-color: #FFFFFF;
            flex-direction: column;
            align-items: flex-start;
            gap: 0;
            padding: 16px 24px 24px;
            border-bottom: 1px solid var(--border-warm);
            box-shadow: 0 8px 24px rgba(14, 59, 46, 0.1);
            display: none;
            z-index: 49;
        }
        .nav-menu.open {
            display: flex;
        }
        .nav-link {
            font-size: 16px;
            padding: 12px 0;
            width: 100%;
            border-bottom: 1px solid var(--border-warm);
        }
        .nav-link:last-child {
            border-bottom: none;
        }
        .nav-cta .btn {
            display: none;
        }
        .nav-toggle {
            display: inline-flex;
        }
    }

    /* Breadcrumb */
    .breadcrumb-nav {
        font-size: 14px;
        color: var(--text-weak);
        padding: 20px 0 0;
    }
    .breadcrumb-nav a {
        color: var(--text-secondary);
        text-decoration: none;
    }
    .breadcrumb-nav a:hover {
        color: var(--primary);
    }
    .breadcrumb-sep {
        margin: 0 8px;
        color: var(--text-weak);
    }

    /* Category Hero */
    .category-hero {
        position: relative;
        background-image: linear-gradient(rgba(10, 32, 24, 0.78), rgba(14, 59, 46, 0.82)), url('/assets/images/backpic/back-1.jpg');
        background-size: cover;
        background-position: center;
        padding: 80px 0;
        color: #FFFFFF;
        border-radius: var(--radius-lg);
        margin-bottom: 48px;
    }
    .category-hero h1 {
        font-size: 36px;
        font-weight: 700;
        color: #FFFFFF;
        margin-bottom: 16px;
        line-height: 1.4;
    }
    .category-hero p {
        font-size: 18px;
        line-height: 1.8;
        color: rgba(255, 255, 255, 0.85);
        max-width: 700px;
        margin-bottom: 24px;
    }
    .cat-hero-meta {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
        color: rgba(255, 255, 255, 0.75);
        font-size: 14px;
    }
    .cat-hero-meta i {
        margin-right: 6px;
        color: var(--accent);
    }

    /* Mixed layout: left large card + right list */
    .mixed-layout {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 32px;
        align-items: start;
    }
    .featured-card {
        background: var(--card-bg);
        border-radius: var(--radius-lg);
        border: 1px solid var(--border-warm);
        overflow: hidden;
        box-shadow: var(--shadow-default);
        transition: box-shadow var(--transition-base), border-color var(--transition-base);
        display: flex;
        flex-direction: column;
    }
    .featured-card:hover {
        box-shadow: var(--shadow-hover);
        border-color: var(--secondary);
    }
    .featured-card .fc-image {
        aspect-ratio: 16/9;
        overflow: hidden;
        position: relative;
        background-color: var(--bg-warm);
    }
    .featured-card .fc-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        border-radius: 0;
        transition: transform var(--transition-image);
    }
    .featured-card:hover .fc-image img {
        transform: scale(1.04);
    }
    .featured-card .fc-body {
        padding: 28px;
        flex: 1;
        display: flex;
        flex-direction: column;
    }
    .featured-card .fc-body .badge {
        margin-bottom: 12px;
        align-self: flex-start;
    }
    .featured-card .fc-body h3 {
        font-size: 22px;
        font-weight: 700;
        color: var(--primary);
        margin-bottom: 12px;
        line-height: 1.4;
    }
    .featured-card .fc-body p {
        font-size: 15px;
        line-height: 1.8;
        color: var(--text-secondary);
        margin-bottom: 16px;
        flex: 1;
    }
    .featured-card .fc-body .fc-meta {
        display: flex;
        align-items: center;
        gap: 16px;
        font-size: 13px;
        color: var(--text-weak);
        margin-bottom: 16px;
    }
    .report-stats {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
        margin-bottom: 20px;
    }
    .report-stat-item {
        background: var(--bg-warm);
        border-radius: var(--radius-sm);
        padding: 12px;
        text-align: center;
    }
    .report-stat-item .rs-num {
        font-size: 20px;
        font-weight: 700;
        color: var(--primary);
        display: block;
    }
    .report-stat-item .rs-label {
        font-size: 12px;
        color: var(--text-weak);
    }

    .right-list {
        display: flex;
        flex-direction: column;
        gap: 16px;
    }
    .right-list-item {
        background: var(--card-bg);
        border-radius: var(--radius-md);
        border: 1px solid var(--border-warm);
        padding: 18px 20px;
        display: flex;
        gap: 16px;
        align-items: center;
        transition: box-shadow var(--transition-base), border-color var(--transition-base);
        cursor: pointer;
    }
    .right-list-item:hover {
        box-shadow: var(--shadow-default);
        border-color: var(--secondary);
    }
    .right-list-item .rli-thumb {
        width: 100px;
        height: 70px;
        flex-shrink: 0;
        border-radius: var(--radius-sm);
        overflow: hidden;
        background-color: var(--bg-warm);
    }
    .right-list-item .rli-thumb img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        border-radius: var(--radius-sm);
        transition: transform var(--transition-image);
    }
    .right-list-item:hover .rli-thumb img {
        transform: scale(1.05);
    }
    .right-list-item .rli-content {
        flex: 1;
        min-width: 0;
    }
    .right-list-item .rli-content h4 {
        font-size: 15px;
        font-weight: 600;
        color: var(--text-main);
        margin-bottom: 4px;
        line-height: 1.4;
    }
    .right-list-item .rli-content .rli-meta {
        font-size: 12px;
        color: var(--text-weak);
    }
    .right-list-item .rli-arrow {
        color: var(--text-weak);
        flex-shrink: 0;
        font-size: 14px;
        transition: color var(--transition-base), transform var(--transition-base);
    }
    .right-list-item:hover .rli-arrow {
        color: var(--secondary);
        transform: translateX(4px);
    }

    /* Section: Deep content */
    .deep-content {
        font-size: 17px;
        line-height: 2;
        color: var(--text-main);
    }
    .deep-content h2 {
        font-size: 26px;
        font-weight: 700;
        color: var(--primary);
        margin-bottom: 20px;
    }
    .deep-content p {
        margin-bottom: 20px;
        max-width: 760px;
    }
    .deep-content .dc-note {
        background: var(--card-bg);
        border-left: 4px solid var(--accent);
        padding: 20px 24px;
        border-radius: 0 var(--radius-md) var(--radius-md) 0;
        max-width: 760px;
        margin-bottom: 20px;
        font-size: 15px;
        color: var(--text-secondary);
    }

    /* Data metrics */
    .metrics-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }
    .metric-card {
        background: var(--card-bg);
        border-radius: var(--radius-md);
        border: 1px solid var(--border-warm);
        padding: 24px;
        text-align: center;
        transition: box-shadow var(--transition-base), border-color var(--transition-base);
    }
    .metric-card:hover {
        box-shadow: var(--shadow-default);
        border-color: var(--secondary);
    }
    .metric-card .mc-number {
        font-size: 32px;
        font-weight: 700;
        color: var(--primary);
        line-height: 1.2;
        margin-bottom: 8px;
    }
    .metric-card .mc-label {
        font-size: 14px;
        color: var(--text-secondary);
    }

    /* Report types */
    .report-types-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    .report-type-card {
        background: var(--card-bg);
        border-radius: var(--radius-md);
        border: 1px solid var(--border-warm);
        padding: 28px;
        transition: box-shadow var(--transition-base), border-color var(--transition-base);
    }
    .report-type-card:hover {
        box-shadow: var(--shadow-hover);
        border-color: var(--secondary);
    }
    .report-type-card .rt-icon {
        font-size: 28px;
        color: var(--secondary);
        margin-bottom: 12px;
    }
    .report-type-card h3 {
        font-size: 18px;
        font-weight: 700;
        color: var(--primary);
        margin-bottom: 8px;
    }
    .report-type-card p {
        font-size: 14px;
        line-height: 1.8;
        color: var(--text-secondary);
        margin-bottom: 0;
    }

    /* Process */
    .process-list {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }
    .process-item {
        display: flex;
        gap: 16px;
        align-items: flex-start;
        background: var(--card-bg);
        border-radius: var(--radius-md);
        border: 1px solid var(--border-warm);
        padding: 20px 24px;
        transition: border-color var(--transition-base);
    }
    .process-item:hover {
        border-color: var(--secondary);
    }
    .process-item .pi-num {
        flex-shrink: 0;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background-color: var(--primary);
        color: var(--accent);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-weight: 700;
        font-size: 16px;
    }
    .process-item .pi-text h4 {
        font-size: 16px;
        font-weight: 600;
        color: var(--primary);
        margin-bottom: 4px;
    }
    .process-item .pi-text p {
        font-size: 14px;
        color: var(--text-secondary);
        margin-bottom: 0;
    }

    /* FAQ */
    .faq-list {
        max-width: 800px;
        margin: 0 auto;
    }
    .faq-item {
        background: var(--card-bg);
        border-radius: var(--radius-md);
        border: 1px solid var(--border-warm);
        margin-bottom: 12px;
        overflow: hidden;
        transition: border-color var(--transition-base);
    }
    .faq-item:hover {
        border-color: var(--secondary);
    }
    .faq-question {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 18px 20px;
        cursor: pointer;
        font-size: 16px;
        font-weight: 600;
        color: var(--text-main);
        gap: 12px;
        background: none;
        border: none;
        width: 100%;
        text-align: left;
        transition: color var(--transition-base);
    }
    .faq-question:hover {
        color: var(--secondary);
    }
    .faq-question .fq-icon {
        flex-shrink: 0;
        font-size: 14px;
        color: var(--text-weak);
        transition: transform var(--transition-base);
    }
    .faq-item.open .fq-icon {
        transform: rotate(90deg);
        color: var(--accent);
    }
    .faq-answer {
        padding: 0 20px 18px;
        font-size: 14px;
        line-height: 1.8;
        color: var(--text-secondary);
        display: none;
    }
    .faq-item.open .faq-answer {
        display: block;
    }

    /* CTA */
    .cta-section {
        background-color: var(--bg-dark);
        padding: 80px 0;
        border-radius: var(--radius-lg);
        color: #FFFFFF;
        text-align: center;
    }
    .cta-section h2 {
        font-size: 30px;
        font-weight: 700;
        color: #FFFFFF;
        margin-bottom: 12px;
    }
    .cta-section p {
        font-size: 16px;
        color: rgba(255, 255, 255, 0.8);
        margin-bottom: 24px;
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
    }

    /* Pagination */
    .pagination-nav {
        display: flex;
        justify-content: center;
        gap: 8px;
        margin-top: 32px;
    }
    .pagination-nav .page-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-width: 44px;
        min-height: 44px;
        padding: 8px 16px;
        border-radius: var(--radius-sm);
        border: 1px solid var(--border-warm);
        background: var(--card-bg);
        color: var(--text-main);
        font-size: 14px;
        font-weight: 500;
        cursor: pointer;
        transition: all var(--transition-base);
    }
    .pagination-nav .page-btn:hover {
        border-color: var(--secondary);
        color: var(--secondary);
    }
    .pagination-nav .page-btn.active {
        background: var(--primary);
        color: #FFFFFF;
        border-color: var(--primary);
    }

    /* Footer */
    .site-footer {
        background-color: var(--bg-dark);
        color: rgba(255, 255, 255, 0.75);
        padding: 60px 0 30px;
        margin-top: 80px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
        gap: 32px;
        margin-bottom: 40px;
    }
    .footer-brand .fb-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 20px;
        font-weight: 700;
        color: #FFFFFF;
        margin-bottom: 12px;
    }
    .fb-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        background-color: var(--accent);
        color: var(--primary);
        border-radius: var(--radius-sm);
    }
    .fb-desc {
        font-size: 14px;
        line-height: 1.8;
        color: rgba(255, 255, 255, 0.65);
    }
    .footer-col h4 {
        font-size: 15px;
        font-weight: 600;
        color: #FFFFFF;
        margin-bottom: 16px;
    }
    .footer-col ul {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    .footer-col ul li {
        margin-bottom: 8px;
    }
    .footer-col ul li a {
        color: rgba(255, 255, 255, 0.65);
        text-decoration: none;
        font-size: 14px;
        transition: color var(--transition-base);
    }
    .footer-col ul li a:hover {
        color: var(--accent);
    }
    .fc-contact {
        font-size: 14px;
        line-height: 1.8;
        color: rgba(255, 255, 255, 0.65);
    }
    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.15);
        padding-top: 24px;
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
        gap: 12px;
        font-size: 13px;
        color: rgba(255, 255, 255, 0.55);
    }
    .fb-links {
        display: flex;
        gap: 8px;
        align-items: center;
        flex-wrap: wrap;
    }
    .fb-links a {
        color: rgba(255, 255, 255, 0.65);
        text-decoration: none;
        transition: color var(--transition-base);
    }
    .fb-links a:hover {
        color: var(--accent);
    }

    /* Responsive */
    @media (max-width: 1024px) {
        .mixed-layout {
            grid-template-columns: 1fr;
        }
        .metrics-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .report-types-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
        }
        .category-hero h1 {
            font-size: 30px;
        }
        .section-title {
            font-size: 26px;
        }
    }

    @media (max-width: 640px) {
        .container, .container-wide {
            padding: 0 16px;
        }
        .section-padding, .section-padding-lg {
            padding: 60px 0;
        }
        .section-padding-sm {
            padding: 40px 0;
        }
        .category-hero {
            padding: 48px 20px;
            border-radius: var(--radius-md);
        }
        .category-hero h1 {
            font-size: 26px;
        }
        .category-hero p {
            font-size: 15px;
        }
        .metrics-grid {
            grid-template-columns: 1fr;
            gap: 12px;
        }
        .report-types-grid {
            grid-template-columns: 1fr;
            gap: 16px;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 24px;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }
        .fb-links {
            justify-content: center;
        }
        .right-list-item {
            flex-direction: column;
            align-items: flex-start;
            gap: 12px;
        }
        .right-list-item .rli-thumb {
            width: 100%;
            height: 160px;
        }
        .process-item {
            flex-direction: column;
            gap: 12px;
        }
        .report-stats {
            grid-template-columns: repeat(3, 1fr);
            gap: 8px;
        }
        .report-stat-item .rs-num {
            font-size: 16px;
        }
        .section-title {
            font-size: 24px;
        }
        .btn {
            min-height: 44px;
            padding: 10px 20px;
            font-size: 14px;
        }
    }

/* roulang page: category1 */
:root {
  --primary: #0E3B2E;
  --secondary: #1B5E45;
  --accent: #E8B830;
  --bg-warm: #F7F5EF;
  --bg-dark: #0A2018;
  --card-bg: #FFFFFF;
  --text-main: #1C2420;
  --text-secondary: #5A655F;
  --text-weak: #8A938D;
  --border-warm: #E0DDD2;
  --chart-blue: #2E86AB;
  --chart-orange: #D96C3F;
  --chart-gray: #8A938D;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-default: 0 1px 3px rgba(14, 59, 46, 0.06), 0 1px 2px rgba(14, 59, 46, 0.04);
  --shadow-hover: 0 8px 24px rgba(14, 59, 46, 0.12), 0 2px 6px rgba(14, 59, 46, 0.08);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
  --font-serif: "Source Han Serif SC", "Noto Serif CJK SC", "Songti SC", serif;
  --nav-height: 68px;
  --transition-base: 0.22s ease;
  --transition-image: 0.35s ease;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-main);
  background-color: var(--bg-warm);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  margin: 0;
  padding: 0;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-md);
}
a {
  color: var(--secondary);
  text-decoration: none;
  transition: color var(--transition-base);
}
a:hover {
  color: var(--primary);
}
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.container-wide {
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 24px;
}
.section-padding {
  padding: 80px 0;
}
.section-padding-lg {
  padding: 100px 0;
}
.section-padding-sm {
  padding: 56px 0;
}
.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--secondary);
  background-color: rgba(27, 94, 69, 0.08);
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 16px;
}
.section-title {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--primary);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}
.section-subtitle {
  font-size: 18px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 24px;
  max-width: 720px;
}
.text-center {
  text-align: center;
}
.text-left {
  text-align: left;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  cursor: pointer;
  border: none;
  text-align: center;
  transition: all var(--transition-base);
  text-decoration: none;
  -webkit-appearance: none;
  appearance: none;
  min-height: 48px;
}
.btn-primary {
  background-color: var(--primary);
  color: #FFFFFF;
  border: none;
}
.btn-primary:hover {
  background-color: var(--bg-dark);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(14, 59, 46, 0.25);
}
.btn-primary:active {
  transform: translateY(1px);
  box-shadow: none;
}
.btn-secondary {
  background-color: transparent;
  color: var(--secondary);
  border: 2px solid var(--secondary);
}
.btn-secondary:hover {
  background-color: rgba(27, 94, 69, 0.1);
  color: var(--secondary);
  transform: translateY(-2px);
}
.btn-secondary:active {
  transform: translateY(1px);
}
.btn-ghost {
  background-color: transparent;
  color: #FFFFFF;
  border: 2px solid #FFFFFF;
}
.btn-ghost:hover {
  background-color: #FFFFFF;
  color: var(--primary);
  transform: translateY(-2px);
}
.btn-ghost:active {
  transform: translateY(1px);
}
.btn-sm {
  padding: 8px 20px;
  font-size: 13px;
  min-height: 40px;
  border-radius: var(--radius-sm);
}
.btn-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  padding: 0;
  color: var(--secondary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-base);
}
.btn-link:hover {
  color: var(--primary);
  text-decoration: underline;
}

/* ========== Header / Navigation ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--border-warm);
  box-shadow: 0 1px 0 rgba(14, 59, 46, 0.04);
  min-height: var(--nav-height);
  transition: box-shadow var(--transition-base), background-color var(--transition-base);
}
.site-header.scrolled {
  background-color: #FFFFFF;
  box-shadow: 0 4px 20px rgba(14, 59, 46, 0.08);
}
.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--nav-height);
  gap: 16px;
}
.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: -0.01em;
}
.nav-logo:hover {
  color: var(--secondary);
}
.nav-logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: var(--primary);
  color: var(--accent);
  border-radius: 50%;
  font-size: 18px;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: nowrap;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  position: relative;
  transition: color var(--transition-base), background-color var(--transition-base);
  white-space: nowrap;
}
.nav-link:hover {
  color: var(--primary);
  background-color: rgba(27, 94, 69, 0.06);
}
.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 14px;
  right: 14px;
  height: 2px;
  background-color: var(--accent);
  border-radius: 1px;
}
.nav-cta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav-toggle .bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--primary);
  border-radius: 1px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}
.nav-toggle.open .bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open .bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open .bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 1023px) {
  .nav-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background-color: #FFFFFF;
    border-bottom: 2px solid var(--primary);
    box-shadow: 0 12px 32px rgba(14, 59, 46, 0.12);
    padding: 12px 24px;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.3s ease;
    z-index: 49;
  }
  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-link {
    padding: 14px 8px;
    font-size: 16px;
    border-bottom: 1px solid var(--border-warm);
  }
  .nav-link.active::after {
    display: none;
  }
  .nav-link.active {
    background-color: rgba(27, 94, 69, 0.06);
  }
  .nav-toggle {
    display: flex;
  }
  .nav-cta .btn {
    display: none;
  }
}
@media (max-width: 639px) {
  .nav-logo {
    font-size: 18px;
  }
  .nav-wrapper {
    gap: 8px;
  }
}

/* ========== Breadcrumb ========== */
.breadcrumb-bar {
  background-color: var(--bg-warm);
  border-bottom: 1px solid var(--border-warm);
  padding: 16px 0;
}
.breadcrumb-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--text-weak);
}
.breadcrumb-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-base);
}
.breadcrumb-nav a:hover {
  color: var(--primary);
}
.breadcrumb-sep {
  color: var(--text-weak);
  font-size: 13px;
}

/* ========== Category Hero ========== */
.cat-hero {
  background-image: linear-gradient(rgba(14, 59, 46, 0.78), rgba(10, 32, 24, 0.82)), url('/assets/images/backpic/back-2.jpg');
  background-size: cover;
  background-position: center;
  color: #FFFFFF;
  padding: 64px 0 56px;
  position: relative;
}
.cat-hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.cat-hero .section-label {
  background-color: rgba(232, 184, 48, 0.18);
  color: var(--accent);
}
.cat-hero h1 {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.4;
  color: #FFFFFF;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}
.card-hero-cta {
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--secondary);
      font-weight: 600;
      font-size: 14px;
      text-decoration: none;
      transition: color var(--transition-base);
      margin-top: auto;
}
.cat-hero p.cat-hero-sub {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.88);
  max-width: 720px;
  margin: 0 0 28px;
}
.cat-stats-row {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  margin-top: 12px;
}
.cat-stat-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 110px;
}
.cat-stat-num {
  font-size: 26px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.3;
}
.cat-stat-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.75);
  white-space: nowrap;
}
@media (max-width: 639px) {
  .cat-hero h1 {
    font-size: 28px;
  }
  .cat-hero p.cat-hero-sub {
    font-size: 16px;
  }
  .cat-stats-row {
    gap: 16px;
  }
  .cat-stat-num {
    font-size: 22px;
  }
}

/* ========== Featured Mixed Layout ========== */
.featured-mixed {
  padding: 48px 0 32px;
  background-color: var(--bg-warm);
}
.fm-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  align-items: start;
}
.fm-main-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-warm);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-default);
  transition: box-shadow var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
  display: flex;
  flex-direction: column;
}
.fm-main-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--secondary);
  transform: translateY(-2px);
}
.fm-main-img {
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.fm-main-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  transition: transform var(--transition-image);
}
.fm-main-card:hover .fm-main-img img {
  transform: scale(1.03);
}
.fm-main-body {
  padding: 24px 28px 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}
.fm-badge {
  display: inline-block;
  background-color: rgba(232, 184, 48, 0.15);
  color: var(--secondary);
  font-size: 12px;
  font-weight: 600;
  padding: 2px 12px;
  border-radius: 4px;
  letter-spacing: 0.04em;
}
.fm-main-title {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--primary);
  margin: 0;
}
.fm-main-excerpt {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin: 0;
}
.fm-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-weak);
  margin-top: auto;
}
.fm-date {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.fm-side-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.fm-side-item {
  background-color: var(--card-bg);
  border: 1px solid var(--border-warm);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  box-shadow: var(--shadow-default);
  transition: box-shadow var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.fm-side-item:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--secondary);
  transform: translateY(-2px);
}
.fm-side-img {
  flex-shrink: 0;
  width: 90px;
  height: 68px;
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.fm-side-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-sm);
  transition: transform var(--transition-image);
}
.fm-side-item:hover .fm-side-img img {
  transform: scale(1.04);
}
.fm-side-content {
  flex: 1;
  min-width: 0;
}
.fm-side-title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--primary);
  margin: 0 0 6px;
  transition: color var(--transition-base);
}
.fm-side-item:hover .fm-side-title {
  color: var(--secondary);
}
.fm-side-excerpt {
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-secondary);
  margin: 0 0 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.fm-side-meta {
  font-size: 12px;
  color: var(--text-weak);
}
@media (max-width: 1023px) {
  .fm-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .fm-main-title {
    font-size: 19px;
  }
}
@media (max-width: 639px) {
  .fm-main-body {
    padding: 18px 18px 22px;
  }
  .fm-side-item {
    flex-direction: column;
    gap: 12px;
  }
  .fm-side-img {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
  }
}

/* ========== Article List (continued) ========== */
.article-list-section {
  padding: 24px 0 48px;
  background-color: var(--bg-warm);
}
.article-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 8px;
}
.al-item {
  background-color: var(--card-bg);
  border: 1px solid var(--border-warm);
  border-left: 3px solid transparent;
  border-radius: var(--radius-md);
  padding: 18px 22px;
  box-shadow: var(--shadow-default);
  transition: box-shadow var(--transition-base), border-color var(--transition-base), border-left-color var(--transition-base), transform var(--transition-base);
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.al-item:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--secondary);
  border-left-color: var(--accent);
  transform: translateY(-2px);
}
.al-img {
  flex-shrink: 0;
  width: 120px;
  height: 80px;
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.al-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-sm);
  transition: transform var(--transition-image);
}
.al-item:hover .al-img img {
  transform: scale(1.04);
}
.al-content {
  flex: 1;
  min-width: 0;
}
.al-title {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--primary);
  margin: 0 0 6px;
  transition: color var(--transition-base);
}
.al-item:hover .al-title {
  color: var(--secondary);
}
.al-excerpt {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
  margin: 0 0 8px;
}
.al-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-weak);
}
@media (max-width: 639px) {
  .al-item {
    flex-direction: column;
    gap: 12px;
    padding: 16px 16px;
  }
  .al-img {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
  }
  .al-title {
    font-size: 15px;
  }
}

/* ========== Deep Content ========== */
.deep-content {
  background-color: #FFFFFF;
  border-top: 1px solid var(--border-warm);
  border-bottom: 1px solid var(--border-warm);
  padding: 64px 0;
}
.deep-content-inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
}
.deep-content .section-title {
  font-size: 26px;
  margin-bottom: 24px;
}
.deep-content p {
  font-size: 16px;
  line-height: 2.0;
  color: var(--text-main);
  margin: 0 0 20px;
  font-family: var(--font-serif);
}
.deep-content p:last-child {
  margin-bottom: 0;
}
@media (max-width: 639px) {
  .deep-content p {
    font-size: 15px;
    line-height: 1.9;
  }
}

/* ========== Data Highlights ========== */
.data-highlights {
  background-color: var(--bg-warm);
  padding: 64px 0;
}
.dh-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.dh-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-warm);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: center;
  box-shadow: var(--shadow-default);
  transition: box-shadow var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
}
.dh-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--secondary);
  transform: translateY(-3px);
}
.dh-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: rgba(27, 94, 69, 0.08);
  color: var(--secondary);
  font-size: 20px;
  margin-bottom: 12px;
}
.dh-value {
  font-size: 26px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.3;
  margin-bottom: 4px;
}
.dh-label {
  font-size: 14px;
  color: var(--text-secondary);
}
@media (max-width: 1023px) {
  .dh-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 639px) {
  .dh-grid {
    grid-template-columns: 1fr;
  }
}

/* ========== FAQ ========== */
.faq-section {
  background-color: #FFFFFF;
  padding: 64px 0;
  border-top: 1px solid var(--border-warm);
}
.faq-inner {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 24px;
}
.faq-item {
  border: 1px solid var(--border-warm);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  background-color: var(--bg-warm);
  overflow: hidden;
}
.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 18px 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 48px;
  transition: background-color var(--transition-base);
}
.faq-question:hover {
  background-color: rgba(27, 94, 69, 0.06);
}
.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(--secondary);
  border-radius: 1px;
}
.faq-icon::before {
  width: 2px;
  height: 14px;
  top: 3px;
  left: 9px;
}
.faq-icon::after {
  width: 14px;
  height: 2px;
  top: 9px;
  left: 3px;
}
.faq-item.open .faq-icon::before {
  opacity: 0;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-item.open .faq-answer {
  max-height: 400px;
}
.faq-answer p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-secondary);
  margin: 0;
  padding: 0 20px 20px;
  border-left: 3px solid var(--accent);
  margin-left: 20px;
  padding-left: 16px;
}
@media (max-width: 639px) {
  .faq-question {
    font-size: 15px;
    padding: 16px 16px;
  }
  .faq-answer p {
    font-size: 14px;
    padding: 0 16px 16px;
    margin-left: 16px;
    padding-left: 12px;
  }
}

/* ========== Pagination ========== */
.pagination-block {
  padding: 24px 0 48px;
  background-color: var(--bg-warm);
}
.pagination-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}
.pg-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-warm);
  background-color: #FFFFFF;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-base);
}
.pg-btn:hover {
  border-color: var(--secondary);
  color: var(--primary);
  transform: translateY(-1px);
}
.pg-btn.active {
  background-color: var(--primary);
  border-color: var(--primary);
  color: #FFFFFF;
  font-weight: 600;
}
.pg-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}
.pg-info {
  font-size: 13px;
  color: var(--text-weak);
  text-align: center;
  margin-top: 12px;
}

/* ========== CTA ========== */
.cta-section {
  background-color: var(--bg-dark);
  padding: 72px 0;
  text-align: center;
  color: #FFFFFF;
}
.cta-section h2 {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.4;
  color: #FFFFFF;
  margin: 0 0 16px;
}
.cta-section p {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.8);
  max-width: 600px;
  margin: 0 auto 28px;
}
.cta-section .btn {
  min-width: 180px;
}
@media (max-width: 639px) {
  .cta-section h2 {
    font-size: 23px;
  }
  .cta-section p {
    font-size: 15px;
  }
}

/* ========== Footer ========== */
.site-footer {
  background-color: var(--bg-dark);
  color: rgba(255, 255, 255, 0.78);
  padding: 56px 0 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.site-footer .container-wide {
  max-width: 1200px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.3fr;
  gap: 32px;
  margin-bottom: 40px;
}
.footer-brand .fb-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 20px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 12px;
}
.fb-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: var(--accent);
  color: var(--primary);
  border-radius: 50%;
  font-size: 16px;
}
.fb-desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #FFFFFF;
  margin: 0 0 14px;
  letter-spacing: 0.04em;
}
.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  text-decoration: none;
  transition: color var(--transition-base);
}
.footer-col ul li a:hover {
  color: var(--accent);
}
.fc-contact {
  font-size: 13px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.7);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
}
.fb-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.fb-links a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color var(--transition-base);
  font-size: 13px;
}
.fb-links a:hover {
  color: var(--accent);
}
.fb-links span {
  color: rgba(255, 255, 255, 0.4);
}
@media (max-width: 1023px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 639px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ========== Focus visible for all interactive ========== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* roulang page: category3 */
:root {
            --primary: #0E3B2E;
            --secondary: #1B5E45;
            --accent: #E8B830;
            --bg-warm: #F7F5EF;
            --bg-dark: #0A2018;
            --card-bg: #FFFFFF;
            --text-main: #1C2420;
            --text-secondary: #5A655F;
            --text-weak: #8A938D;
            --border-warm: #E0DDD2;
            --chart-blue: #2E86AB;
            --chart-orange: #D96C3F;
            --chart-gray: #8A938D;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-default: 0 1px 3px rgba(14, 59, 46, 0.06), 0 1px 2px rgba(14, 59, 46, 0.04);
            --shadow-hover: 0 8px 24px rgba(14, 59, 46, 0.12), 0 2px 6px rgba(14, 59, 46, 0.08);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
            --font-serif: "Source Han Serif SC", "Noto Serif CJK SC", "Songti SC", serif;
            --nav-height: 68px;
            --transition-base: 0.22s ease;
            --transition-image: 0.35s ease;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--bg-warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }
        a {
            color: var(--secondary);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--primary);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-wide {
            max-width: 1360px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-padding {
            padding: 80px 0;
        }
        .section-padding-lg {
            padding: 100px 0;
        }
        .section-padding-sm {
            padding: 56px 0;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--secondary);
            background-color: rgba(27, 94, 69, 0.08);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--primary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 18px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 24px;
            max-width: 720px;
        }
        .text-center {
            text-align: center;
        }
        .text-left {
            text-align: left;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
            cursor: pointer;
            border: none;
            text-align: center;
            transition: all var(--transition-base);
            text-decoration: none;
            -webkit-appearance: none;
            appearance: none;
            min-height: 48px;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #FFFFFF;
            border: none;
        }
        .btn-primary:hover {
            background-color: var(--bg-dark);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(14, 59, 46, 0.25);
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--secondary);
            border: 2px solid var(--secondary);
        }
        .btn-secondary:hover {
            background-color: rgba(27, 94, 69, 0.1);
            color: var(--secondary);
            transform: translateY(-2px);
        }
        .btn-secondary:active {
            transform: translateY(1px);
        }
        .btn-ghost {
            background-color: transparent;
            color: #FFFFFF;
            border: 2px solid #FFFFFF;
        }
        .btn-ghost:hover {
            background-color: #FFFFFF;
            color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-ghost:active {
            transform: translateY(1px);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 13px;
            min-height: 40px;
            border-radius: var(--radius-sm);
        }
        .btn-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: none;
            border: none;
            padding: 0;
            color: var(--secondary);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            text-decoration: none;
            transition: all var(--transition-base);
        }
        .btn-link:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 4px;
            letter-spacing: 0.02em;
        }
        .badge-hot {
            background-color: var(--accent);
            color: var(--primary);
        }
        .badge-tag {
            background-color: rgba(27, 94, 69, 0.1);
            color: var(--secondary);
        }
        .badge-date {
            background-color: rgba(138, 147, 141, 0.15);
            color: var(--text-secondary);
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background-color: rgba(255, 255, 255, 0.95);
            border-bottom: 2px solid var(--primary);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: background-color var(--transition-base), box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            background-color: #FFFFFF;
            box-shadow: 0 2px 16px rgba(14, 59, 46, 0.12);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
            max-width: 1360px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--primary) !important;
            white-space: nowrap;
            letter-spacing: 0.02em;
            text-decoration: none;
        }
        .nav-logo:hover {
            color: var(--secondary) !important;
        }
        .nav-logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: var(--primary);
            color: var(--accent);
            font-size: 16px;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
            position: relative;
            min-height: 44px;
        }
        .nav-link:hover {
            color: var(--primary);
            background-color: rgba(14, 59, 46, 0.04);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 700;
            background-color: transparent;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 14px;
            right: 14px;
            height: 2px;
            background-color: var(--accent);
            border-radius: 2px;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 0;
            border-radius: var(--radius-sm);
            transition: background-color var(--transition-base);
        }
        .nav-toggle:hover {
            background-color: rgba(14, 59, 46, 0.06);
        }
        .nav-toggle .bar {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        .nav-toggle.active .bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.active .bar:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active .bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background-color: #FFFFFF;
            border-bottom: 1px solid var(--border-warm);
            padding: 14px 0;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-weak);
            flex-wrap: wrap;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .breadcrumb-nav li {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb-nav li:not(:last-child)::after {
            content: '/';
            color: var(--border-warm);
            font-weight: 700;
        }
        .breadcrumb-nav a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        .breadcrumb-nav a:hover {
            color: var(--primary);
        }
        .breadcrumb-nav .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* Category Hero */
        .cat-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            min-height: 380px;
            display: flex;
            align-items: center;
            padding: 60px 0;
        }
        .cat-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 32, 24, 0.87) 0%, rgba(14, 59, 46, 0.78) 50%, rgba(10, 32, 24, 0.9) 100%);
        }
        .cat-hero-content {
            position: relative;
            z-index: 1;
            color: #FFFFFF;
            max-width: 800px;
        }
        .cat-hero h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 16px;
            color: #FFFFFF;
            letter-spacing: -0.01em;
        }
        .cat-hero .hero-desc {
            font-size: 17px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 20px;
            max-width: 680px;
        }
        .cat-hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            margin-top: 24px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.2);
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .hero-stat .stat-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: -0.01em;
        }
        .hero-stat .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
        }

        /* Core Dimensions - 2 col top-bottom cards */
        .core-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }
        .core-card {
            background: var(--card-bg);
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-md);
            padding: 0;
            overflow: hidden;
            box-shadow: var(--shadow-default);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .core-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--secondary);
            transform: translateY(-4px);
        }
        .core-card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            border-radius: 0;
            margin: 0;
        }
        .core-card-body {
            padding: 24px 28px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .core-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .core-card p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-secondary);
            margin-bottom: 0;
            flex: 1;
        }

        /* Article List - 2 col grid, top-bottom cards */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }
        .article-card {
            background: var(--card-bg);
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-default);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--secondary);
            transform: translateY(-4px);
        }
        .article-card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            border-radius: 0;
            margin: 0;
            transition: transform var(--transition-image);
        }
        .article-card:hover .article-card-img {
            transform: scale(1.03);
        }
        .article-card-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .article-card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }
        .article-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.5;
            transition: color var(--transition-base);
        }
        .article-card:hover h3 {
            color: var(--secondary);
        }
        .article-card .article-summary {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 16px;
            flex: 1;
        }
        .article-card .btn-link {
            align-self: flex-start;
        }

        /* Deep Content - dark */
        .deep-section {
            background-color: var(--bg-dark);
            padding: 80px 0;
            color: rgba(255, 255, 255, 0.85);
        }
        .deep-section .section-title {
            color: #FFFFFF;
        }
        .deep-section .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }
        .deep-art {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }
        .deep-art .deep-text {
            font-family: var(--font-serif);
            font-size: 16px;
            line-height: 2.0;
            color: rgba(255, 255, 255, 0.82);
        }
        .deep-art .deep-text p {
            margin-bottom: 20px;
        }
        .deep-art .deep-text p:last-child {
            margin-bottom: 0;
        }
        .deep-art-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 2px solid rgba(255, 255, 255, 0.15);
        }
        .deep-art-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }

        /* Data indicators */
        .data-table-wrap {
            background: var(--card-bg);
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-default);
        }
        .custom-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
        }
        .custom-table thead th {
            background-color: var(--primary);
            color: #FFFFFF;
            font-weight: 600;
            text-align: left;
            padding: 14px 20px;
            font-size: 13px;
            letter-spacing: 0.02em;
        }
        .custom-table tbody td {
            padding: 13px 20px;
            border-bottom: 1px solid var(--border-warm);
            color: var(--text-secondary);
        }
        .custom-table tbody tr:nth-child(even) {
            background-color: rgba(247, 245, 239, 0.6);
        }
        .custom-table tbody tr:hover {
            background-color: rgba(27, 94, 69, 0.05);
            transition: background-color var(--transition-base);
        }
        .custom-table tbody tr:last-child td {
            border-bottom: none;
        }

        /* Process steps */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            counter-reset: step;
        }
        .process-step {
            background: var(--card-bg);
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-default);
            transition: all var(--transition-base);
            position: relative;
        }
        .process-step:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--secondary);
            transform: translateY(-4px);
        }
        .process-step .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary);
            color: var(--accent);
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .process-step h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .process-step p {
            font-size: 13px;
            line-height: 1.75;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        /* Scene cards */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .scene-card {
            display: flex;
            gap: 20px;
            background: var(--card-bg);
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-default);
            transition: all var(--transition-base);
            align-items: flex-start;
        }
        .scene-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--secondary);
        }
        .scene-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background-color: rgba(27, 94, 69, 0.1);
            color: var(--secondary);
            font-size: 18px;
        }
        .scene-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .scene-card p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        /* Report sample */
        .report-sample {
            background: var(--card-bg);
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-default);
            display: grid;
            grid-template-columns: auto 1fr;
            gap: 28px;
        }
        .report-sample .rs-img {
            width: 240px;
            border-radius: var(--radius-md);
            overflow: hidden;
        }
        .report-sample .rs-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
       }
        .report-sample .rs-content h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .report-sample .rs-content .rs-meta {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 12px;
        }
        .report-sample .rs-content .rs-text {
            font-size: 14px;
            line-height: 1.85;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }
        .rs-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        /* FAQ */
        .faq-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .faq-list li {
            background: var(--card-bg);
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-default);
            transition: all var(--transition-base);
        }
        .faq-list li:hover {
            border-color: var(--secondary);
        }
        .faq-toggle {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: none;
            border: none;
            padding: 18px 24px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            text-align: left;
            transition: all var(--transition-base);
            min-height: 56px;
        }
        .faq-toggle:hover {
            color: var(--secondary);
            background-color: rgba(27, 94, 69, 0.03);
        }
        .faq-toggle .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background-color: rgba(27, 94, 69, 0.08);
            color: var(--secondary);
            font-size: 12px;
            transition: transform var(--transition-base);
        }
        .faq-list li.is-active .faq-toggle .faq-icon {
            transform: rotate(90deg);
            background-color: var(--primary);
            color: var(--accent);
        }
        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .faq-list li.is-active .faq-content {
            max-height: 400px;
        }
        .faq-content-inner {
            padding: 0 24px 20px;
            font-size: 14px;
            line-height: 1.85;
            color: var(--text-secondary);
            border-left: 3px solid var(--accent);
            margin-left: 24px;
            padding-left: 20px;
        }

        /* CTA Section */
        .cta-section {
            background-color: var(--bg-dark);
            padding: 80px 0;
            text-align: center;
            color: #FFFFFF;
        }
        .cta-section .cta-title {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
            color: #FFFFFF;
            line-height: 1.4;
        }
        .cta-section .cta-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }

        /* Pagination */
        .pagination-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 40px;
            flex-wrap: wrap;
        }
        .pagination-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 44px;
            height: 44px;
            padding: 0 14px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-warm);
            background: var(--card-bg);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            text-decoration: none;
            transition: all var(--transition-base);
        }
        .pagination-btn:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            background-color: rgba(27, 94, 69, 0.04);
        }
        .pagination-btn.active {
            background-color: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
            font-weight: 700;
        }
        .pagination-btn.disabled {
            opacity: 0.5;
            pointer-events: none;
        }

        /* Footer */
        .site-footer {
            background-color: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 30px;
            font-size: 14px;
            line-height: 1.8;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .fb-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 14px;
        }
        .fb-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: rgba(232, 184, 48, 0.15);
            color: var(--accent);
            font-size: 16px;
        }
        .fb-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            max-width: 280px;
            line-height: 1.8;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            font-size: 13px;
            transition: color var(--transition-base);
        }
        .footer-col ul a:hover {
            color: var(--accent);
        }
        .fc-contact {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.9;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
        }
        .fb-links {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .fb-links a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            font-size: 12px;
            transition: color var(--transition-base);
        }
        .fb-links a:hover {
            color: var(--accent);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .core-grid,
            .article-grid {
                gap: 24px;
            }
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
                gap: 28px;
            }
            .deep-art {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .process-steps {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
            .report-sample {
                grid-template-columns: 1fr;
            }
            .report-sample .rs-img {
                width: 100%;
                aspect-ratio: 16 / 9;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .nav-menu {
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background-color: #FFFFFF;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 16px 24px;
                box-shadow: 0 12px 32px rgba(14, 59, 46, 0.15);
                display: none;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-link {
                padding: 14px 16px;
                font-size: 15px;
                border-radius: var(--radius-sm);
            }
            .nav-link.active::after {
                left: 0;
                right: 0;
                bottom: 8px;
            }
            .nav-cta .btn-primary {
                display: none;
            }
            .container,
            .container-wide {
                padding: 0 16px;
            }
            .section-padding {
                padding: 60px 0;
            }
            .section-padding-lg {
                padding: 72px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .cat-hero h1 {
                font-size: 28px;
            }
            .cat-hero {
                min-height: 320px;
                padding: 40px 0;
            }
            .core-grid,
            .article-grid,
            .scene-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .cat-hero-stats {
                gap: 20px;
            }
            .hero-stat .stat-num {
                font-size: 22px;
            }
            .report-sample {
                padding: 20px;
            }
            .faq-toggle {
                padding: 14px 18px;
                font-size: 14px;
                min-height: 52px;
            }
        }
        @media (max-width: 520px) {
            .section-title {
                font-size: 22px;
            }
            .cat-hero h1 {
                font-size: 24px;
            }
            .hero-stat .stat-num {
                font-size: 20px;
            }
            .btn {
                padding: 10px 20px;
                font-size: 14px;
                min-height: 44px;
            }
            .process-steps {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .pagination-btn {
                min-width: 38px;
                height: 38px;
                font-size: 13px;
                padding: 0 10px;
            }
        }

/* roulang page: category4 */
:root {
        --primary: #0E3B2E;
        --secondary: #1B5E45;
        --accent: #E8B830;
        --bg-warm: #F7F5EF;
        --bg-dark: #0A2018;
        --card-bg: #FFFFFF;
        --text-main: #1C2420;
        --text-secondary: #5A655F;
        --text-weak: #8A938D;
        --border-warm: #E0DDD2;
        --chart-blue: #2E86AB;
        --chart-orange: #D96C3F;
        --chart-gray: #8A938D;
        --radius-sm: 6px;
        --radius-md: 8px;
        --radius-lg: 12px;
        --shadow-default: 0 1px 3px rgba(14, 59, 46, 0.06), 0 1px 2px rgba(14, 59, 46, 0.04);
        --shadow-hover: 0 8px 24px rgba(14, 59, 46, 0.12), 0 2px 6px rgba(14, 59, 46, 0.08);
        --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
        --font-serif: "Source Han Serif SC", "Noto Serif CJK SC", "Songti SC", serif;
        --nav-height: 68px;
        --transition-base: 0.22s ease;
        --transition-image: 0.35s ease;
    }

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

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

    body {
        font-family: var(--font-sans);
        font-size: 16px;
        line-height: 1.8;
        color: var(--text-main);
        background-color: var(--bg-warm);
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        overflow-x: hidden;
        margin: 0;
    }

    img {
        max-width: 100%;
        height: auto;
        display: block;
        border-radius: var(--radius-md);
    }

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

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

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

    button,
    input,
    select,
    textarea {
        font-family: inherit;
        font-size: inherit;
    }

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

    .container-wide {
        max-width: 1360px;
        margin: 0 auto;
        padding: 0 24px;
    }

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

    .section-padding-lg {
        padding: 100px 0;
    }

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

    .section-label {
        display: inline-block;
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        color: var(--secondary);
        background-color: rgba(27, 94, 69, 0.08);
        padding: 4px 14px;
        border-radius: 20px;
        margin-bottom: 16px;
    }

    .section-title {
        font-size: 30px;
        font-weight: 700;
        line-height: 1.4;
        color: var(--primary);
        margin-bottom: 16px;
        letter-spacing: -0.01em;
    }

    .section-subtitle {
        font-size: 18px;
        line-height: 1.8;
        color: var(--text-secondary);
        margin-bottom: 24px;
        max-width: 720px;
    }

    .text-center {
        text-align: center;
    }

    .text-left {
        text-align: left;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 12px 28px;
        border-radius: var(--radius-sm);
        font-size: 15px;
        font-weight: 600;
        line-height: 1.5;
        cursor: pointer;
        border: none;
        text-align: center;
        transition: all var(--transition-base);
        text-decoration: none;
        -webkit-appearance: none;
        appearance: none;
        min-height: 48px;
    }

    .btn-primary {
        background-color: var(--primary);
        color: #FFFFFF;
        border: none;
    }

    .btn-primary:hover {
        background-color: var(--bg-dark);
        color: #FFFFFF;
        transform: translateY(-2px);
        box-shadow: 0 4px 16px rgba(14, 59, 46, 0.25);
    }

    .btn-primary:active {
        transform: translateY(1px);
        box-shadow: none;
    }

    .btn-secondary {
        background-color: transparent;
        color: var(--secondary);
        border: 2px solid var(--secondary);
    }

    .btn-secondary:hover {
        background-color: rgba(27, 94, 69, 0.1);
        color: var(--secondary);
        transform: translateY(-2px);
    }

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

    .btn-ghost {
        background-color: transparent;
        color: #FFFFFF;
        border: 2px solid #FFFFFF;
    }

    .btn-ghost:hover {
        background-color: #FFFFFF;
        color: var(--primary);
        transform: translateY(-2px);
    }

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

    .btn-sm {
        padding: 8px 20px;
        font-size: 13px;
        min-height: 40px;
        border-radius: var(--radius-sm);
    }

    .btn-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: none;
        border: none;
        padding: 0;
        color: var(--secondary);
        font-size: 14px;
        font-weight: 600;
        cursor: pointer;
        text-decoration: none;
        transition: all var(--transition-base);
    }

    .btn-link:hover {
        color: var(--primary);
        text-decoration: underline;
        background: none;
    }

    .btn-link .arrow-icon {
        transition: transform var(--transition-base);
    }

    .btn-link:hover .arrow-icon {
        transform: translateX(4px);
    }

    /* Header/Nav */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 50;
        background-color: rgba(255, 255, 255, 0.92);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 2px solid var(--primary);
        height: var(--nav-height);
        transition: box-shadow var(--transition-base), background-color var(--transition-base);
    }

    .site-header.scrolled {
        box-shadow: 0 4px 16px rgba(14, 59, 46, 0.1);
        background-color: rgba(255, 255, 255, 0.98);
    }

    .nav-wrapper {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 100%;
    }

    .nav-logo {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        font-size: 20px;
        font-weight: 700;
        color: var(--primary);
        text-decoration: none;
        letter-spacing: -0.01em;
    }

    .nav-logo-icon {
        width: 40px;
        height: 40px;
        background-color: var(--primary);
        color: var(--accent);
        border-radius: var(--radius-sm);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        flex-shrink: 0;
    }

    .nav-menu {
        display: flex;
        align-items: center;
        gap: 4px;
    }

    .nav-link {
        display: inline-flex;
        align-items: center;
        font-size: 14px;
        font-weight: 600;
        color: var(--text-secondary);
        text-decoration: none;
        padding: 8px 14px;
        border-radius: var(--radius-sm);
        transition: all var(--transition-base);
        position: relative;
    }

    .nav-link:hover {
        color: var(--primary);
        background-color: rgba(27, 94, 69, 0.06);
    }

    .nav-link.active {
        color: var(--primary);
        font-weight: 700;
    }

    .nav-link.active::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 14px;
        right: 14px;
        height: 2px;
        background-color: var(--accent);
        border-radius: 1px;
    }

    .nav-cta {
        display: flex;
        align-items: center;
        gap: 12px;
    }

    .nav-toggle {
        display: none;
        flex-direction: column;
        gap: 5px;
        background: none;
        border: none;
        cursor: pointer;
        padding: 8px;
        min-height: 44px;
        min-width: 44px;
        align-items: center;
        justify-content: center;
        border-radius: var(--radius-sm);
        transition: background-color var(--transition-base);
    }

    .nav-toggle:hover {
        background-color: rgba(27, 94, 69, 0.08);
    }

    .nav-toggle .bar {
        display: block;
        width: 24px;
        height: 2px;
        background-color: var(--primary);
        border-radius: 2px;
        transition: all var(--transition-base);
        transform-origin: center;
    }

    .nav-toggle[aria-expanded="true"] .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .nav-toggle[aria-expanded="true"] .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle[aria-expanded="true"] .bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    /* Breadcrumb */
    .breadcrumb-bar {
        background-color: rgba(14, 59, 46, 0.04);
        border-bottom: 1px solid var(--border-warm);
        padding: 12px 0;
    }

    .breadcrumb-list {
        display: flex;
        align-items: center;
        gap: 8px;
        flex-wrap: wrap;
        list-style: none;
        margin: 0;
        padding: 0;
        font-size: 13px;
        color: var(--text-weak);
    }

    .breadcrumb-list li {
        display: inline-flex;
        align-items: center;
        gap: 8px;
    }

    .breadcrumb-list a {
        color: var(--text-secondary);
        text-decoration: none;
        transition: color var(--transition-base);
    }

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

    .breadcrumb-list .separator {
        color: var(--text-weak);
        user-select: none;
    }

    .breadcrumb-list .current {
        color: var(--primary);
        font-weight: 600;
    }

    /* Category Hero */
    .cat-hero {
        position: relative;
        background-color: var(--bg-dark);
        background-image: linear-gradient(rgba(10, 32, 24, 0.76), rgba(10, 32, 24, 0.82)), url('/assets/images/backpic/back-2.jpg');
        background-size: cover;
        background-position: center;
        padding: 60px 0 56px;
        color: #FFFFFF;
    }

    .cat-hero .section-label {
        background-color: rgba(232, 184, 48, 0.18);
        color: var(--accent);
    }

    .cat-hero h1 {
        font-size: 36px;
        font-weight: 700;
        line-height: 1.35;
        margin-bottom: 16px;
        color: #FFFFFF;
        letter-spacing: -0.01em;
    }

    .cat-hero .cat-hero-desc {
        font-size: 17px;
        line-height: 1.8;
        color: rgba(255, 255, 255, 0.85);
        max-width: 680px;
        margin-bottom: 20px;
    }

    .cat-hero-meta {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        font-size: 13px;
        color: rgba(255, 255, 255, 0.7);
    }

    .cat-hero-meta span {
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }

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

    /* Intro section */
    .intro-block {
        display: flex;
        flex-wrap: wrap;
        gap: 24px;
        align-items: stretch;
    }

    .intro-text {
        flex: 1 1 55%;
        min-width: 300px;
    }

    .intro-text p {
        color: var(--text-secondary);
        margin-bottom: 16px;
    }

    .intro-text p:last-child {
        margin-bottom: 0;
    }

    .intro-stats {
        flex: 1 1 35%;
        min-width: 280px;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }

    .stat-mini-card {
        background: var(--card-bg);
        border: 1px solid var(--border-warm);
        border-radius: var(--radius-md);
        padding: 20px 18px;
        box-shadow: var(--shadow-default);
        transition: box-shadow var(--transition-base), border-color var(--transition-base);
        text-align: center;
    }

    .stat-mini-card:hover {
        box-shadow: var(--shadow-hover);
        border-color: var(--secondary);
    }

    .stat-mini-card .stat-number {
        font-size: 26px;
        font-weight: 700;
        color: var(--primary);
        margin-bottom: 4px;
    }

    .stat-mini-card .stat-label {
        font-size: 13px;
        color: var(--text-weak);
    }

    /* Dimension cards */
    .dimension-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
        gap: 24px;
        margin-top: 32px;
    }

    .dimension-card {
        background: var(--card-bg);
        border: 1px solid var(--border-warm);
        border-radius: var(--radius-md);
        padding: 24px 20px;
        box-shadow: var(--shadow-default);
        transition: box-shadow var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
    }

    .dimension-card:hover {
        box-shadow: var(--shadow-hover);
        border-color: var(--secondary);
        transform: translateY(-3px);
    }

    .dimension-icon {
        width: 44px;
        height: 44px;
        background-color: rgba(27, 94, 69, 0.08);
        color: var(--secondary);
        border-radius: var(--radius-sm);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        margin-bottom: 14px;
    }

    .dimension-card h3 {
        font-size: 17px;
        font-weight: 700;
        color: var(--primary);
        margin-bottom: 8px;
        line-height: 1.45;
    }

    .dimension-card p {
        font-size: 14px;
        line-height: 1.7;
        color: var(--text-secondary);
        margin: 0;
    }

    /* Article cards - left-right layout within 2-col grid */
    .article-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 24px;
        align-items: start;
    }

    .article-card {
        background: var(--card-bg);
        border: 1px solid var(--border-warm);
        border-radius: var(--radius-md);
        padding: 18px;
        box-shadow: var(--shadow-default);
        transition: box-shadow var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
        display: flex;
        gap: 16px;
        align-items: flex-start;
    }

    .article-card:hover {
        box-shadow: var(--shadow-hover);
        border-color: var(--secondary);
        transform: translateY(-3px);
    }

    .article-card .ac-image {
        flex: 0 0 42%;
        max-width: 42%;
        overflow: hidden;
        border-radius: var(--radius-sm);
    }

    .article-card .ac-image img {
        width: 100%;
        aspect-ratio: 4 / 3;
        object-fit: cover;
        border-radius: var(--radius-sm);
        transition: transform var(--transition-image);
    }

    .article-card:hover .ac-image img {
        transform: scale(1.04);
    }

    .article-card .ac-content {
        flex: 1;
        display: flex;
        flex-direction: column;
        min-height: 100%;
    }

    .article-card .ac-date {
        font-size: 12px;
        color: var(--text-weak);
        display: inline-flex;
        align-items: center;
        gap: 4px;
        margin-bottom: 6px;
    }

    .article-card .ac-title {
        font-size: 16px;
        font-weight: 700;
        color: var(--text-main);
        line-height: 1.5;
        margin-bottom: 8px;
        transition: color var(--transition-base);
    }

    .article-card:hover .ac-title {
        color: var(--secondary);
    }

    .article-card .ac-summary {
        font-size: 13px;
        line-height: 1.65;
        color: var(--text-secondary);
        margin-bottom: 10px;
        flex: 1;
    }

    .article-card .ac-link {
        font-size: 13px;
        font-weight: 600;
        color: var(--secondary);
        text-decoration: none;
        display: inline-flex;
        align-items: center;
        gap: 4px;
        transition: color var(--transition-base);
    }

    .article-card .ac-link:hover {
        color: var(--primary);
        text-decoration: underline;
    }

    .pagination-bar {
        margin-top: 36px;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 12px;
        flex-wrap: wrap;
    }

    .pagination-bar .page-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-width: 40px;
        height: 40px;
        padding: 0 12px;
        background-color: var(--card-bg);
        border: 1px solid var(--border-warm);
        border-radius: var(--radius-sm);
        font-size: 14px;
        font-weight: 600;
        color: var(--text-secondary);
        cursor: pointer;
        text-decoration: none;
        transition: all var(--transition-base);
    }

    .pagination-bar .page-btn:hover {
        border-color: var(--secondary);
        color: var(--primary);
    }

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

    .pagination-bar .page-btn.disabled {
        opacity: 0.45;
        pointer-events: none;
        cursor: default;
    }

    /* Deep content section */
    .deep-content {
        background-color: var(--card-bg);
        border: 1px solid var(--border-warm);
        border-radius: var(--radius-lg);
        padding: 36px 40px;
        box-shadow: var(--shadow-default);
    }

    .deep-content h2 {
        font-size: 24px;
        font-weight: 700;
        color: var(--primary);
        margin-bottom: 20px;
        line-height: 1.4;
    }

    .deep-content p {
        font-family: var(--font-serif);
        font-size: 16px;
        line-height: 2.0;
        color: var(--text-main);
        margin-bottom: 20px;
        max-width: 760px;
    }

    .deep-content p:last-child {
        margin-bottom: 0;
    }

    .deep-content .dc-highlight {
        background-color: rgba(27, 94, 69, 0.06);
        border-left: 3px solid var(--secondary);
        padding: 16px 20px;
        border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        font-family: var(--font-sans);
        font-size: 14px;
        color: var(--text-secondary);
        margin: 20px 0;
    }

    /* Subscription form */
    .subs-block {
        background-color: var(--card-bg);
        border: 1px solid var(--border-warm);
        border-radius: var(--radius-lg);
        padding: 36px 40px;
        box-shadow: var(--shadow-default);
    }

    .subs-block .subs-grid {
        display: flex;
        flex-wrap: wrap;
        gap: 24px;
        align-items: center;
    }

    .subs-info {
        flex: 1 1 50%;
        min-width: 280px;
    }

    .subs-info h2 {
        font-size: 22px;
        font-weight: 700;
        color: var(--primary);
        margin-bottom: 10px;
    }

    .subs-info p {
        color: var(--text-secondary);
        font-size: 15px;
        line-height: 1.7;
        margin: 0;
    }

    .subs-form-wrap {
        flex: 1 1 40%;
        min-width: 280px;
    }

    .subs-form {
        display: flex;
        gap: 12px;
        flex-wrap: wrap;
    }

    .subs-form input[type="email"] {
        flex: 1;
        min-width: 200px;
        padding: 10px 14px;
        border-radius: var(--radius-sm);
        border: 1px solid var(--border-warm);
        background-color: #FFFFFF;
        font-size: 14px;
        transition: border-color var(--transition-base), box-shadow var(--transition-base);
        min-height: 48px;
    }

    .subs-form input[type="email"]:focus {
        border-color: var(--secondary);
        box-shadow: 0 0 0 3px rgba(27, 94, 69, 0.1);
        outline: none;
    }

    .subs-form .btn {
        flex-shrink: 0;
    }

    .subs-note {
        font-size: 12px;
        color: var(--text-weak);
        margin-top: 8px;
    }

    /* FAQ */
    .faq-list {
        max-width: 820px;
        margin: 0 auto;
    }

    .faq-item {
        background: var(--card-bg);
        border: 1px solid var(--border-warm);
        border-radius: var(--radius-md);
        margin-bottom: 16px;
        overflow: hidden;
        transition: border-color var(--transition-base), box-shadow var(--transition-base);
    }

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

    .faq-item[open] {
        box-shadow: var(--shadow-hover);
        border-color: var(--secondary);
    }

    .faq-question {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 18px 22px;
        background: none;
        border: none;
        cursor: pointer;
        font-size: 16px;
        font-weight: 600;
        color: var(--text-main);
        text-align: left;
        transition: color var(--transition-base), background-color var(--transition-base);
        min-height: 44px;
    }

    .faq-question:hover {
        color: var(--secondary);
        background-color: rgba(27, 94, 69, 0.04);
    }

    .faq-question .faq-icon {
        flex-shrink: 0;
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background-color: rgba(27, 94, 69, 0.08);
        color: var(--secondary);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 12px;
        transition: transform var(--transition-base);
    }

    .faq-item[open] .faq-question .faq-icon {
        transform: rotate(90deg);
    }

    .faq-answer {
        padding: 0 22px 18px 22px;
        font-size: 14px;
        line-height: 1.7;
        color: var(--text-secondary);
    }

    .faq-answer p {
        margin: 0;
    }

    /* CTA Section */
    .cta-section {
        background-color: var(--bg-dark);
        padding: 80px 0;
        color: #FFFFFF;
        position: relative;
        overflow: hidden;
    }

    .cta-section::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-image: radial-gradient(ellipse at 30% 50%, rgba(27, 94, 69, 0.35) 0%, transparent 70%);
        pointer-events: none;
    }

    .cta-inner {
        position: relative;
        z-index: 1;
        text-align: center;
        max-width: 680px;
        margin: 0 auto;
    }

    .cta-inner h2 {
        font-size: 30px;
        font-weight: 700;
        color: #FFFFFF;
        margin-bottom: 16px;
        line-height: 1.4;
    }

    .cta-inner p {
        font-size: 16px;
        line-height: 1.8;
        color: rgba(255, 255, 255, 0.8);
        margin-bottom: 28px;
    }

    /* Footer */
    .site-footer {
        background-color: var(--bg-dark);
        color: rgba(255, 255, 255, 0.75);
        padding: 60px 0 28px;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
        gap: 32px;
        margin-bottom: 40px;
    }

    .footer-brand .fb-logo {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        font-size: 20px;
        font-weight: 700;
        color: #FFFFFF;
        margin-bottom: 16px;
    }

    .fb-icon {
        width: 40px;
        height: 40px;
        background-color: rgba(232, 184, 48, 0.2);
        color: var(--accent);
        border-radius: var(--radius-sm);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
    }

    .fb-desc {
        font-size: 13px;
        line-height: 1.7;
        color: rgba(255, 255, 255, 0.6);
        max-width: 260px;
        margin-bottom: 0;
    }

    .footer-col h4 {
        font-size: 15px;
        font-weight: 700;
        color: #FFFFFF;
        margin-bottom: 14px;
    }

    .footer-col ul {
        list-style: none;
        margin: 0;
        padding: 0;
    }

    .footer-col ul li {
        margin-bottom: 10px;
    }

    .footer-col ul li a {
        color: rgba(255, 255, 255, 0.65);
        text-decoration: none;
        font-size: 14px;
        transition: color var(--transition-base);
    }

    .footer-col ul li a:hover {
        color: var(--accent);
    }

    .fc-contact {
        font-size: 13px;
        line-height: 1.8;
        color: rgba(255, 255, 255, 0.65);
    }

    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.12);
        padding-top: 22px;
        display: flex;
        flex-wrap: wrap;
        gap: 12px 24px;
        justify-content: space-between;
        align-items: center;
        font-size: 12px;
        color: rgba(255, 255, 255, 0.5);
    }

    .fb-links {
        display: flex;
        align-items: center;
        gap: 8px;
        flex-wrap: wrap;
    }

    .fb-links a {
        color: rgba(255, 255, 255, 0.65);
        text-decoration: none;
        transition: color var(--transition-base);
    }

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

    .fb-links span {
        color: rgba(255, 255, 255, 0.3);
    }

    /* Responsive */
    @media (max-width: 1024px) {
        .article-grid {
            grid-template-columns: 1fr;
            gap: 20px;
        }

        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .article-card .ac-image {
            flex: 0 0 36%;
            max-width: 36%;
        }

        .deep-content {
            padding: 28px 24px;
        }

        .subs-block {
            padding: 28px 24px;
        }
    }

    @media (max-width: 768px) {
        :root {
            --nav-height: 60px;
        }

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

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

        .section-title {
            font-size: 24px;
        }

        .cat-hero h1 {
            font-size: 28px;
        }

        .nav-menu {
            display: none;
            position: absolute;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background-color: var(--bg-dark);
            flex-direction: column;
            padding: 16px 24px 24px;
            gap: 4px;
            box-shadow: 0 12px 24px rgba(10, 32, 24, 0.3);
            z-index: 60;
        }

        .nav-menu.open {
            display: flex;
        }

        .nav-menu .nav-link {
            color: rgba(255, 255, 255, 0.8);
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
        }

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

        .nav-menu .nav-link.active {
            color: var(--accent);
            background-color: rgba(232, 184, 48, 0.1);
        }

        .nav-menu .nav-link.active::after {
            display: none;
        }

        .nav-toggle {
            display: flex;
        }

        .nav-cta .btn-primary {
            display: none;
        }

        .intro-stats {
            grid-template-columns: 1fr 1fr;
        }

        .article-card {
            flex-direction: column;
            padding: 16px;
        }

        .article-card .ac-image {
            flex: none;
            max-width: 100%;
            width: 100%;
        }

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

        .footer-grid {
            grid-template-columns: 1fr;
            gap: 24px;
        }

        .footer-bottom {
            flex-direction: column;
            align-items: flex-start;
            text-align: left;
        }

        .subs-form {
            flex-direction: column;
        }

        .subs-form input[type="email"] {
            min-width: 100%;
        }

        .subs-form .btn {
            width: 100%;
        }

        .deep-content {
            padding: 22px 18px;
        }

        .deep-content p {
            font-size: 15px;
            line-height: 1.8;
        }

        .cta-inner h2 {
            font-size: 24px;
        }
    }

    @media (max-width: 520px) {
        .container,
        .container-wide {
            padding: 0 16px;
        }

        .section-title {
            font-size: 22px;
        }

        .cat-hero {
            padding: 40px 0 36px;
        }

        .cat-hero h1 {
            font-size: 24px;
        }

        .cat-hero .cat-hero-desc {
            font-size: 15px;
        }

        .intro-stats {
            grid-template-columns: 1fr;
            gap: 12px;
        }

        .dimension-grid {
            grid-template-columns: 1fr;
            gap: 16px;
        }

        .article-card .ac-title {
            font-size: 14px;
        }

        .article-card .ac-summary {
            font-size: 12px;
        }

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

        .faq-answer {
            padding: 0 16px 16px 16px;
            font-size: 13px;
        }

        .cta-inner h2 {
            font-size: 20px;
        }
    }

/* roulang page: category5 */
:root {
            --primary: #0E3B2E;
            --secondary: #1B5E45;
            --accent: #E8B830;
            --bg-warm: #F7F5EF;
            --bg-dark: #0A2018;
            --card-bg: #FFFFFF;
            --text-main: #1C2420;
            --text-secondary: #5A655F;
            --text-weak: #8A938D;
            --border-warm: #E0DDD2;
            --chart-blue: #2E86AB;
            --chart-orange: #D96C3F;
            --chart-gray: #8A938D;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-default: 0 1px 3px rgba(14, 59, 46, 0.06), 0 1px 2px rgba(14, 59, 46, 0.04);
            --shadow-hover: 0 8px 24px rgba(14, 59, 46, 0.12), 0 2px 6px rgba(14, 59, 46, 0.08);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
            --font-serif: "Source Han Serif SC", "Noto Serif CJK SC", "Songti SC", serif;
            --nav-height: 68px;
            --transition-base: 0.22s ease;
            --transition-image: 0.35s ease;
        }

        *,
        *::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);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--bg-warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

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

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

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

        button,
        input,
        select {
            font-family: inherit;
            font-size: inherit;
        }

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

        .container-wide {
            max-width: 1360px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

        .section-padding-lg {
            padding: 100px 0;
        }

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

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--secondary);
            background-color: rgba(27, 94, 69, 0.08);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--primary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-subtitle {
            font-size: 18px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 24px;
            max-width: 720px;
        }

        .text-center {
            text-align: center;
        }

        .text-left {
            text-align: left;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
            cursor: pointer;
            border: none;
            text-align: center;
            transition: all var(--transition-base);
            text-decoration: none;
            -webkit-appearance: none;
            appearance: none;
            min-height: 48px;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #FFFFFF;
            border: none;
        }

        .btn-primary:hover {
            background-color: var(--bg-dark);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(14, 59, 46, 0.25);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--secondary);
            border: 2px solid var(--secondary);
        }

        .btn-secondary:hover {
            background-color: rgba(27, 94, 69, 0.1);
            color: var(--secondary);
            transform: translateY(-2px);
        }

        .btn-ghost {
            background-color: transparent;
            color: #FFFFFF;
            border: 2px solid #FFFFFF;
        }

        .btn-ghost:hover {
            background-color: #FFFFFF;
            color: var(--primary);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 8px 20px;
            font-size: 13px;
            min-height: 40px;
            border-radius: var(--radius-sm);
        }

        .btn-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: none;
            border: none;
            padding: 0;
            color: var(--secondary);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-base);
        }

        .btn-link:hover {
            color: var(--primary);
            text-decoration: underline;
        }

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

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background-color: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-warm);
            height: var(--nav-height);
            transition: all var(--transition-base);
        }

        .site-header.scrolled {
            background-color: rgba(255, 255, 255, 0.98);
            box-shadow: 0 2px 12px rgba(14, 59, 46, 0.08);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            transition: color var(--transition-base);
        }

        .nav-logo:hover {
            color: var(--secondary);
        }

        .nav-logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background-color: var(--primary);
            color: var(--accent);
            border-radius: 50%;
            font-size: 18px;
            flex-shrink: 0;
            transition: all var(--transition-base);
        }

        .nav-logo:hover .nav-logo-icon {
            background-color: var(--secondary);
            transform: scale(1.05);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
        }

        .nav-link {
            display: inline-block;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 0;
            position: relative;
            transition: color var(--transition-base);
            white-space: nowrap;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background-color: var(--accent);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-base);
        }

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

        .nav-link:hover::after {
            transform: scaleX(1);
        }

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

        .nav-link.active::after {
            transform: scaleX(1);
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background-color var(--transition-base);
        }

        .nav-toggle:hover {
            background-color: rgba(14, 59, 46, 0.06);
        }

        .nav-toggle .bar {
            display: block;
            width: 22px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .nav-toggle[aria-expanded="true"] .bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle[aria-expanded="true"] .bar:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle[aria-expanded="true"] .bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background-color: #FFFFFF;
            border-bottom: 1px solid var(--border-warm);
            padding: 12px 0;
        }

        .breadcrumb-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-weak);
            flex-wrap: wrap;
        }

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

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

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

        .breadcrumb-current {
            color: var(--primary);
            font-weight: 600;
        }

        /* Category Hero */
        .category-hero {
            background-color: var(--primary);
            background-image: linear-gradient(135deg, rgba(14, 59, 46, 0.95) 0%, rgba(10, 32, 24, 0.9) 60%, rgba(27, 94, 69, 0.85) 100%);
            padding: 56px 0 48px;
            position: relative;
            overflow: hidden;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(232, 184, 48, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-hero .container {
            position: relative;
            z-index: 1;
        }

        .category-hero h1 {
            font-size: 34px;
            font-weight: 700;
            color: #FFFFFF;
            line-height: 1.35;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .category-hero .hero-sub {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .hero-meta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            align-items: center;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
        }

        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.8);
            font-size: 14px;
        }

        .hero-meta-item i {
            color: var(--accent);
            font-size: 15px;
        }

        .hero-meta-item strong {
            color: #FFFFFF;
            font-weight: 600;
        }

        /* Category Body Layout */
        .category-body {
            padding: 48px 0 72px;
        }

        .category-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            align-items: start;
        }

        .main-list {
            min-width: 0;
        }

        .list-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 28px;
        }

        .list-header h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
        }

        .list-count {
            font-size: 14px;
            color: var(--text-weak);
        }

        .filter-chips {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .filter-chip {
            display: inline-block;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 500;
            border-radius: 20px;
            background-color: #FFFFFF;
            border: 1px solid var(--border-warm);
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
        }

        .filter-chip:hover {
            border-color: var(--secondary);
            color: var(--secondary);
        }

        .filter-chip.active {
            background-color: var(--primary);
            border-color: var(--primary);
            color: #FFFFFF;
            font-weight: 600;
        }

        /* Article List Item */
        .article-list-item {
            display: flex;
            gap: 24px;
            background-color: #FFFFFF;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-lg);
            padding: 20px;
            margin-bottom: 20px;
            transition: all var(--transition-base);
            position: relative;
        }

        .article-list-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 20px;
            bottom: 20px;
            width: 3px;
            border-radius: 0 3px 3px 0;
            background-color: transparent;
            transition: background-color var(--transition-base);
        }

        .article-list-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--secondary);
        }

        .article-list-item:hover::before {
            background-color: var(--accent);
        }

        .article-thumb {
            flex-shrink: 0;
            width: 220px;
            height: 140px;
            border-radius: var(--radius-md);
            overflow: hidden;
            position: relative;
            background-color: var(--bg-warm);
        }

        .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-image);
            border-radius: var(--radius-md);
        }

        .article-list-item:hover .article-thumb img {
            transform: scale(1.04);
        }

        .article-content {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
            justify-content: flex-start;
        }

        .article-date {
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-date i {
            font-size: 12px;
            color: var(--secondary);
        }

        .article-title {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.45;
            margin-bottom: 8px;
            transition: color var(--transition-base);
            display: inline-block;
        }

        .article-list-item:hover .article-title {
            color: var(--secondary);
        }

        .article-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-footer {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .article-tag {
            font-size: 12px;
            padding: 3px 10px;
            border-radius: 4px;
            background-color: rgba(27, 94, 69, 0.08);
            color: var(--secondary);
            font-weight: 500;
        }

        /* Sidebar */
        .sidebar {
            position: sticky;
            top: calc(var(--nav-height) + 24px);
            max-height: calc(100vh - var(--nav-height) - 48px);
            overflow-y: auto;
        }

        .sidebar-card {
            background-color: #FFFFFF;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-lg);
            padding: 24px;
            margin-bottom: 20px;
        }

        .sidebar-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid rgba(27, 94, 69, 0.1);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card h3 i {
            color: var(--accent);
            font-size: 16px;
        }

        .hot-post-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .hot-post-item {
            display: flex;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-warm);
            transition: all var(--transition-base);
        }

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

        .hot-post-num {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            background-color: rgba(27, 94, 69, 0.08);
            border-radius: 6px;
        }

        .hot-post-item:nth-child(1) .hot-post-num {
            background-color: var(--accent);
            color: var(--primary);
        }

        .hot-post-info a {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.5;
            transition: color var(--transition-base);
        }

        .hot-post-info a:hover {
            color: var(--secondary);
        }

        .hot-post-info .hot-date {
            font-size: 12px;
            color: var(--text-weak);
            margin-top: 2px;
        }

        .sidebar-cta {
            background-color: var(--primary);
            border: none;
            color: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
        }

        .sidebar-cta h3 {
            color: #FFFFFF;
            border-bottom: none;
            padding-bottom: 0;
            justify-content: center;
            margin-bottom: 8px;
        }

        .sidebar-cta h3 i {
            color: var(--accent);
        }

        .sidebar-cta p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .sidebar-cta .btn {
            width: 100%;
            font-size: 14px;
        }

        .sidebar-cta .btn-primary {
            background-color: var(--accent);
            color: var(--primary);
        }

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

        /* Pagination */
        .pagination-wrap {
            margin-top: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .pagination-item {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 44px;
            height: 44px;
            padding: 0 14px;
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            background-color: #FFFFFF;
            border: 1px solid var(--border-warm);
            color: var(--text-secondary);
            text-decoration: none;
            transition: all var(--transition-base);
        }

        .pagination-item:hover {
            border-color: var(--secondary);
            color: var(--secondary);
        }

        .pagination-item.active {
            background-color: var(--primary);
            border-color: var(--primary);
            color: #FFFFFF;
            font-weight: 600;
        }

        .pagination-item.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* Data Highlights Section */
        .data-highlights {
            background-color: #FFFFFF;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            margin-top: 32px;
        }

        .data-highlights h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .data-highlights h3 i {
            color: var(--accent);
        }

        .data-grid-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
        }

        .data-stat {
            text-align: center;
            padding: 16px;
            background-color: var(--bg-warm);
            border-radius: var(--radius-md);
            transition: all var(--transition-base);
        }

        .data-stat:hover {
            background-color: rgba(27, 94, 69, 0.06);
        }

        .data-stat-value {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .data-stat-value .unit {
            font-size: 16px;
            font-weight: 500;
            color: var(--text-secondary);
        }

        .data-stat-label {
            font-size: 13px;
            color: var(--text-weak);
        }

        /* CTA Section */
        .cta-section {
            background-color: var(--bg-dark);
            background-image: linear-gradient(135deg, rgba(10, 32, 24, 0.98) 0%, rgba(14, 59, 46, 0.95) 100%);
            padding: 64px 0;
            text-align: center;
            border-radius: 0;
        }

        .cta-section .section-title {
            color: #FFFFFF;
            margin-bottom: 12px;
        }

        .cta-section .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
            max-width: 600px;
            margin: 0 auto 28px;
        }

        .cta-section .btn {
            font-size: 16px;
            padding: 14px 36px;
        }

        .cta-section .btn-primary {
            background-color: var(--accent);
            color: var(--primary);
        }

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

        /* Footer */
        .site-footer {
            background-color: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 40px;
        }

        .fb-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }

        .fb-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background-color: var(--primary);
            color: var(--accent);
            border-radius: 50%;
            font-size: 16px;
        }

        .fb-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color var(--transition-base);
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .fc-contact {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
            align-items: center;
            justify-content: space-between;
        }

        .footer-bottom > div {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .fb-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .fb-links a {
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition-base);
        }

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

        .fb-links span {
            color: rgba(255, 255, 255, 0.3);
        }

        /* Responsive Breakpoints */
        @media (max-width: 1024px) {
            .category-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .sidebar {
                position: static;
                max-height: none;
                overflow-y: visible;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }

            .sidebar-card {
                margin-bottom: 0;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background-color: #FFFFFF;
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 12px 24px;
                border-bottom: 1px solid var(--border-warm);
                box-shadow: 0 8px 24px rgba(14, 59, 46, 0.1);
                display: none;
            }

            .nav-menu.open {
                display: flex;
            }

            .nav-link {
                display: block;
                padding: 12px 0;
                width: 100%;
                font-size: 16px;
                border-bottom: 1px solid var(--border-warm);
            }

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

            .nav-link::after {
                display: none;
            }

            .nav-link.active {
                background-color: rgba(27, 94, 69, 0.06);
                padding-left: 12px;
                border-radius: var(--radius-sm);
                border-bottom: none;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-cta .btn {
                display: none;
            }

            .category-hero h1 {
                font-size: 28px;
            }

            .article-list-item {
                flex-direction: column;
                gap: 16px;
            }

            .article-thumb {
                width: 100%;
                height: 200px;
            }

            .article-title {
                font-size: 17px;
            }

            .sidebar {
                grid-template-columns: 1fr;
            }

            .data-grid-row {
                grid-template-columns: 1fr 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .section-title {
                font-size: 24px;
            }

            .hero-meta-row {
                gap: 12px;
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .container-wide {
                padding: 0 16px;
            }

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

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

            .category-hero {
                padding: 36px 0 32px;
            }

            .category-hero h1 {
                font-size: 24px;
            }

            .category-hero .hero-sub {
                font-size: 15px;
            }

            .article-list-item {
                padding: 14px;
            }

            .article-thumb {
                height: 160px;
            }

            .data-grid-row {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .data-stat-value {
                font-size: 24px;
            }

            .pagination-item {
                min-width: 38px;
                height: 38px;
                font-size: 13px;
                padding: 0 10px;
            }

            .filter-chip {
                font-size: 12px;
                padding: 5px 12px;
            }
        }

/* roulang page: category6 */
:root {
  --primary: #0E3B2E;
  --secondary: #1B5E45;
  --accent: #E8B830;
  --bg-warm: #F7F5EF;
  --bg-dark: #0A2018;
  --card-bg: #FFFFFF;
  --text-main: #1C2420;
  --text-secondary: #5A655F;
  --text-weak: #8A938D;
  --border-warm: #E0DDD2;
  --chart-blue: #2E86AB;
  --chart-orange: #D96C3F;
  --chart-gray: #8A938D;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-default: 0 1px 3px rgba(14, 59, 46, 0.06), 0 1px 2px rgba(14, 59, 46, 0.04);
  --shadow-hover: 0 8px 24px rgba(14, 59, 46, 0.12), 0 2px 6px rgba(14, 59, 46, 0.08);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
  --font-serif: "Source Han Serif SC", "Noto Serif CJK SC", "Songti SC", serif;
  --nav-height: 68px;
  --transition-base: 0.22s ease;
  --transition-image: 0.35s ease;
}
/* roulang page: industry-news */
:root {
  --primary: #0E3B2E;
  --secondary: #1B5E45;
  --accent: #E8B830;
  --bg-warm: #F7F5EF;
  --bg-dark: #0A2018;
  --card-bg: #FFFFFF;
  --text-main: #1C2420;
  --text-secondary: #5A655F;
  --text-weak: #8A938D;
  --border-warm: #E0DDD2;
  --chart-blue: #2E86AB;
  --chart-orange: #D96C3F;
  --chart-gray: #8A938D;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-default: 0 1px 3px rgba(14, 59, 46, 0.06), 0 1px 2px rgba(14, 59, 46, 0.04);
  --shadow-hover: 0 8px 24px rgba(14, 59, 46, 0.12), 0 2px 6px rgba(14, 59, 46, 0.08);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
  --font-serif: "Source Han Serif SC", "Noto Serif CJK SC", "Songti SC", serif;
  --nav-height: 68px;
  --transition-base: 0.22s ease;
  --transition-image: 0.35s ease;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-main);
  background-color: var(--bg-warm);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-md);
}
a {
  color: var(--secondary);
  text-decoration: none;
  transition: color var(--transition-base);
}
a:hover {
  color: var(--primary);
}
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.container-wide {
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 24px;
}
.section-padding {
  padding: 80px 0;
}
.section-padding-lg {
  padding: 100px 0;
}
.section-padding-sm {
  padding: 56px 0;
}
.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--secondary);
  background-color: rgba(27, 94, 69, 0.08);
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 16px;
}
.section-title {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--primary);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}
.section-subtitle {
  font-size: 18px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 24px;
  max-width: 720px;
}
.text-center {
  text-align: center;
}
.text-left {
  text-align: left;
}
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  cursor: pointer;
  border: none;
  text-align: center;
  transition: all var(--transition-base);
  text-decoration: none;
  -webkit-appearance: none;
  appearance: none;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.btn-primary {
  background-color: var(--primary);
  color: #FFFFFF;
  border: none;
}
.btn-primary:hover {
  background-color: var(--bg-dark);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(14, 59, 46, 0.25);
}
.btn-primary:active {
  transform: translateY(1px);
  box-shadow: none;
}
.btn-secondary {
  background-color: transparent;
  color: var(--secondary);
  border: 2px solid var(--secondary);
}
.btn-secondary:hover {
  background-color: rgba(27, 94, 69, 0.1);
  color: var(--secondary);
  transform: translateY(-2px);
}
.btn-secondary:active {
  transform: translateY(1px);
}
.btn-ghost {
  background-color: transparent;
  color: #FFFFFF;
  border: 2px solid #FFFFFF;
}
.btn-ghost:hover {
  background-color: #FFFFFF;
  color: var(--primary);
  transform: translateY(-2px);
}
.btn-ghost:active {
  transform: translateY(1px);
}
.btn-sm {
  padding: 8px 20px;
  font-size: 13px;
  min-height: 40px;
  border-radius: var(--radius-sm);
}
.btn-link {
  display: inline-block;
  background: none;
  border: none;
  padding: 0;
  color: var(--secondary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn-link:hover {
  color: var(--primary);
  text-decoration: underline;
}

/* Header / Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: #FFFFFF;
  border-bottom: 1px solid var(--border-warm);
  height: var(--nav-height);
  box-shadow: 0 1px 4px rgba(14, 59, 46, 0.05);
}
.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
  gap: 24px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  white-space: nowrap;
}
.nav-logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--primary);
  color: #FFFFFF;
  border-radius: var(--radius-sm);
  font-size: 18px;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  white-space: nowrap;
}
.nav-link:hover {
  color: var(--primary);
  background-color: rgba(27, 94, 69, 0.06);
}
.nav-link.active {
  color: var(--primary);
  background-color: rgba(27, 94, 69, 0.08);
  font-weight: 600;
  border-bottom: 2px solid var(--accent);
  border-radius: 0;
}
.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: var(--radius-sm);
}
.nav-toggle .bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--primary);
  transition: all var(--transition-base);
  border-radius: 2px;
}
.nav-toggle[aria-expanded="true"] .bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] .bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Breadcrumb */
.breadcrumb-section {
  background-color: #FFFFFF;
  border-bottom: 1px solid var(--border-warm);
  padding: 16px 0;
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--text-weak);
}
.breadcrumb a {
  color: var(--text-secondary);
}
.breadcrumb a:hover {
  color: var(--primary);
}
.breadcrumb .separator {
  color: var(--text-weak);
}
.breadcrumb .current {
  color: var(--primary);
  font-weight: 600;
}

/* Category Hero */
.category-hero {
  background-color: var(--primary);
  background-image: linear-gradient(rgba(10, 32, 24, 0.78), rgba(14, 59, 46, 0.82)), url('/assets/images/backpic/back-2.jpg');
  background-size: cover;
  background-position: center;
  padding: 80px 0 72px;
  color: #FFFFFF;
}
.category-hero-content {
  max-width: 800px;
}
.category-hero h1 {
  font-size: 38px;
  font-weight: 700;
  line-height: 1.3;
  color: #FFFFFF;
  margin-bottom: 18px;
}
.category-hero p {
  font-size: 18px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 28px;
}
.category-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.hero-stat {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: #E8B830;
  background-color: rgba(255, 255, 255, 0.08);
  padding: 8px 16px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}
.hero-stat i {
  font-size: 14px;
}

/* Main content layout */
.main-content-area {
  padding: 56px 0 80px;
}
.content-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  align-items: start;
}
.article-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.article-item {
  background-color: var(--card-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-warm);
  overflow: hidden;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-default);
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 0;
  position: relative;
}
.article-item:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--secondary);
}
.article-item:hover .article-cover img {
  transform: scale(1.04);
}
.article-item:hover .article-title {
  color: var(--secondary);
}
.article-cover {
  position: relative;
  overflow: hidden;
  background-color: var(--bg-warm);
  min-height: 190px;
}
.article-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
  transition: transform var(--transition-image);
}
.article-body {
  padding: 22px 26px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.article-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--secondary);
  background-color: rgba(27, 94, 69, 0.08);
  padding: 3px 12px;
  border-radius: 4px;
  align-self: flex-start;
}
.article-title {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--text-main);
  margin: 0;
  transition: color var(--transition-base);
}
.article-title a {
  color: inherit;
}
.article-title a:hover {
  color: var(--secondary);
}
.article-excerpt {
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-secondary);
  margin: 0;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: auto;
  padding-top: 8px;
}
.article-date {
  font-size: 13px;
  color: var(--text-weak);
  display: flex;
  align-items: center;
  gap: 6px;
}
.article-readmore {
  margin-left: auto;
  font-size: 14px;
  font-weight: 600;
  color: var(--secondary);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-base);
}
.article-readmore:hover {
  color: var(--primary);
  gap: 10px;
}
.article-readmore i {
  font-size: 12px;
}

/* Sidebar */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.sidebar-widget {
  background-color: var(--card-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-warm);
  padding: 24px;
}
.sidebar-widget h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border-warm);
}
.hot-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.hot-list li a {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 14px;
  line-height: 1.55;
  color: var(--text-main);
  transition: all var(--transition-base);
}
.hot-list li a:hover {
  color: var(--secondary);
}
.hot-rank {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background-color: rgba(27, 94, 69, 0.1);
  color: var(--secondary);
  font-weight: 700;
  font-size: 12px;
  border-radius: 4px;
  flex-shrink: 0;
}
.hot-rank.top {
  background-color: var(--accent);
  color: var(--primary);
}
.subscribe-widget {
  background-color: var(--primary);
  color: #FFFFFF;
  border-radius: var(--radius-md);
  padding: 28px 24px;
}
.subscribe-widget h3 {
  font-size: 20px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 12px;
}
.subscribe-widget p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 20px;
}
.subscribe-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.subscribe-form input[type="email"] {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.3);
  background-color: rgba(255, 255, 255, 0.12);
  color: #FFFFFF;
  font-size: 14px;
  min-height: 48px;
  transition: all var(--transition-base);
}
.subscribe-form input[type="email"]::placeholder {
  color: rgba(255, 255, 255, 0.55);
}
.subscribe-form input[type="email"]:focus {
  border-color: var(--accent);
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  background-color: rgba(255, 255, 255, 0.18);
}
.subscribe-form .btn {
  width: 100%;
  background-color: var(--accent);
  color: var(--primary);
  font-weight: 700;
}
.subscribe-form .btn:hover {
  background-color: #D4A628;
  color: var(--primary);
  transform: translateY(-2px);
}

/* Pagination */
.pagination-section {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  padding: 32px 0 0;
}
.pagination {
  display: flex;
  gap: 6px;
}
.page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 44px;
  padding: 0 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  background-color: var(--card-bg);
  border: 1px solid var(--border-warm);
  transition: all var(--transition-base);
}
.page-link:hover {
  color: var(--primary);
  border-color: var(--secondary);
}
.page-link.active {
  background-color: var(--primary);
  color: #FFFFFF;
  border-color: var(--primary);
  font-weight: 700;
}
.page-link.disabled {
  opacity: 0.5;
  pointer-events: none;
}

/* Deep content section */
.deep-content-section {
  background-color: #FFFFFF;
  border-top: 1px solid var(--border-warm);
  border-bottom: 1px solid var(--border-warm);
  padding: 80px 0;
}
.deep-content-wrapper {
  max-width: 800px;
  margin: 0 auto;
}
.deep-content-wrapper h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 22px;
  line-height: 1.4;
}
.deep-content-wrapper p {
  font-size: 16px;
  line-height: 1.95;
  color: var(--text-main);
  margin-bottom: 20px;
}
.deep-content-wrapper .deep-highlight {
  border-left: 4px solid var(--accent);
  background-color: rgba(232, 184, 48, 0.08);
  padding: 18px 24px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 28px 0;
  font-size: 15px;
  color: var(--text-main);
}
.deep-content-wrapper .deep-highlight strong {
  color: var(--primary);
}

/* Data insight section */
.data-insight-section {
  padding: 64px 0;
  background-color: var(--bg-warm);
}
.insight-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 32px;
}
.insight-card {
  background-color: var(--card-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-warm);
  padding: 28px 22px;
  text-align: center;
  box-shadow: var(--shadow-default);
  transition: all var(--transition-base);
}
.insight-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--secondary);
  transform: translateY(-3px);
}
.insight-number {
  font-size: 36px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 6px;
}
.insight-number span {
  font-size: 18px;
  color: var(--accent);
}
.insight-label {
  font-size: 14px;
  color: var(--text-secondary);
}

/* FAQ */
.faq-section {
  padding: 80px 0;
  background-color: #FFFFFF;
}
.faq-list {
  max-width: 800px;
  margin: 32px auto 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  border: 1px solid var(--border-warm);
  border-radius: var(--radius-md);
  background-color: var(--bg-warm);
  overflow: hidden;
  transition: all var(--transition-base);
}
.faq-item:hover {
  border-color: var(--secondary);
}
.faq-item.open {
  background-color: #FFFFFF;
  border-color: var(--secondary);
  box-shadow: var(--shadow-default);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  min-height: 56px;
  gap: 12px;
  transition: all var(--transition-base);
}
.faq-question:hover {
  color: var(--secondary);
}
.faq-question .faq-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: rgba(27, 94, 69, 0.1);
  color: var(--secondary);
  font-size: 12px;
  transition: transform var(--transition-base);
  flex-shrink: 0;
}
.faq-item.open .faq-icon {
  transform: rotate(180deg);
  background-color: var(--accent);
  color: var(--primary);
}
.faq-answer {
  padding: 0 22px 20px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-secondary);
  display: none;
}
.faq-item.open .faq-answer {
  display: block;
}

/* CTA section */
.cta-section {
  background-color: var(--bg-dark);
  padding: 72px 0;
  color: #FFFFFF;
}
.cta-content {
  max-width: 640px;
}
.cta-content h2 {
  font-size: 30px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 16px;
  line-height: 1.4;
}
.cta-content p {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 28px;
}
.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* Footer */
.site-footer {
  background-color: var(--bg-dark);
  color: rgba(255, 255, 255, 0.75);
  padding: 64px 0 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 48px;
}
.fb-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 14px;
}
.fb-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--accent);
  border-radius: var(--radius-sm);
  font-size: 16px;
}
.fb-desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
  max-width: 260px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}
.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col ul li a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  transition: all var(--transition-base);
}
.footer-col ul li a:hover {
  color: var(--accent);
}
.fc-contact {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.65);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  justify-content: space-between;
}
.fb-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.fb-links a {
  color: rgba(255, 255, 255, 0.65);
  font-size: 13px;
}
.fb-links a:hover {
  color: var(--accent);
}
.fb-links span {
  color: rgba(255, 255, 255, 0.3);
}

/* Responsive */
@media (max-width: 1024px) {
  .content-layout {
    grid-template-columns: 1fr 280px;
    gap: 28px;
  }
  .article-item {
    grid-template-columns: 240px 1fr;
  }
  .insight-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background-color: #FFFFFF;
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px;
    gap: 4px;
    border-bottom: 1px solid var(--border-warm);
    box-shadow: 0 8px 24px rgba(14, 59, 46, 0.1);
  }
  .nav-menu.open {
    display: flex;
  }
  .nav-toggle {
    display: flex;
  }
  .nav-link {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
  }
  .nav-link.active {
    border-radius: var(--radius-sm);
    border-bottom: none;
    background-color: rgba(27, 94, 69, 0.08);
  }
  .nav-cta .btn-primary {
    display: none;
  }
  .content-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .article-item {
    grid-template-columns: 1fr;
  }
  .article-cover {
    min-height: 180px;
  }
  .category-hero h1 {
    font-size: 28px;
  }
  .category-hero {
    padding: 56px 0 48px;
  }
  .section-title {
    font-size: 24px;
  }
  .insight-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
  }
}
@media (max-width: 520px) {
  .container,
  .container-wide {
    padding: 0 16px;
  }
  .article-body {
    padding: 16px 18px;
  }
  .article-title {
    font-size: 17px;
  }
  .article-excerpt {
    font-size: 14px;
  }
  .category-hero h1 {
    font-size: 24px;
  }
  .category-hero p {
    font-size: 15px;
  }
  .btn {
    padding: 10px 20px;
    font-size: 14px;
  }
}