/* roulang page: index */
:root {
            --primary: #1F2A36;
            --primary-soft: #2D3A48;
            --accent: #C8641F;
            --accent-hover: #A35218;
            --bg: #F6F4EF;
            --bg-alt: #EDEAE3;
            --surface: #FFFFFF;
            --text: #1F2A36;
            --muted: #5C6670;
            --weak: #8A929B;
            --border: #E2DED5;
            --radius: 8px;
            --radius-sm: 6px;
            --radius-pill: 20px;
            --shadow: 0 2px 12px rgba(31, 42, 54, 0.06);
            --shadow-hover: 0 8px 28px rgba(31, 42, 54, 0.12);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-mono: 'Roboto Mono', 'SFMono-Regular', 'Consolas', monospace;
            --container: 1180px;
            --gutter: 24px;
            --nav-height: 72px;
            --transition: 0.25s 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);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

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

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

        ul, ol {
            list-style: none;
        }

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 var(--gutter);
        }

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

        section {
            padding: 72px 0;
        }

        section:nth-of-type(even) {
            background-color: var(--bg-alt);
        }

        section:nth-of-type(odd) {
            background-color: var(--bg);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--muted);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 36px;
        }

        .section-title--light {
            color: #FFFFFF;
        }

        .section-subtitle--light {
            color: rgba(255, 255, 255, 0.75);
        }

        /* Header / Nav */
        .site-header {
            background-color: var(--primary);
            height: var(--nav-height);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: 0.04em;
            white-space: nowrap;
        }

        .brand-logo span {
            color: var(--accent);
        }

        .brand-logo:hover {
            color: #FFFFFF;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .nav-links a {
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 500;
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent);
            transition: width var(--transition);
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .nav-links a:hover {
            color: #FFFFFF;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .nav-btn {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #FFFFFF;
            background: transparent;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-btn:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.5);
            color: #FFFFFF;
        }

        .nav-btn--accent {
            border-color: var(--accent);
            background: transparent;
            color: var(--accent);
        }

        .nav-btn--accent:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #FFFFFF;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: #FFFFFF;
            font-size: 24px;
            line-height: 1;
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: #FFFFFF;
            margin: 5px 0;
            border-radius: 2px;
            transition: all var(--transition);
        }

        /* Mobile nav */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--primary);
            z-index: 999;
            padding: 24px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }

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

        .mobile-nav a {
            color: #FFFFFF;
            font-size: 18px;
            font-weight: 500;
            padding: 14px 16px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }

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

        .mobile-nav .nav-btn {
            display: flex;
            justify-content: center;
            margin-top: 8px;
            padding: 12px 16px;
            font-size: 16px;
            border-radius: var(--radius-sm);
        }

        /* Hero */
        .hero {
            background-color: var(--primary);
            position: relative;
            overflow: hidden;
            padding: 0;
            min-height: 620px;
            display: flex;
            align-items: center;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/efdd81b5dea15f84.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
        }

        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(31, 42, 54, 0.95) 0%, rgba(31, 42, 54, 0.7) 55%, rgba(31, 42, 54, 0.88) 100%);
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
            padding-top: 80px;
            padding-bottom: 80px;
        }

        .hero h1 {
            font-size: 42px;
            font-weight: 700;
            line-height: 1.25;
            color: #FFFFFF;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }

        .hero h1 .accent-text {
            color: var(--accent);
        }

        .hero-subtitle {
            font-size: 17px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.82);
            margin-bottom: 28px;
            max-width: 520px;
        }

        .hero-cta {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            line-height: 1.5;
        }

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

        .btn--accent:hover {
            background-color: var(--accent-hover);
            color: #FFFFFF;
        }

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

        .btn--outline-light {
            background: transparent;
            color: #FFFFFF;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
        }

        .btn--outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #FFFFFF;
            color: #FFFFFF;
        }

        .btn--outline-accent {
            background: transparent;
            color: var(--accent);
            border: 1.5px solid var(--accent);
        }

        .btn--outline-accent:hover {
            background: var(--accent);
            color: #FFFFFF;
        }

        .hero-metrics {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }

        .hero-metric {
            display: flex;
            flex-direction: column;
        }

        .hero-metric-value {
            font-family: var(--font-mono);
            font-size: 22px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 0.02em;
        }

        .hero-metric-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 2px;
        }

        .hero-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius);
            padding: 24px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .hero-card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 16px;
        }

        .hero-card-title {
            font-size: 14px;
            font-weight: 600;
            color: #FFFFFF;
            letter-spacing: 0.04em;
        }

        .hero-card-badge {
            font-size: 11px;
            font-weight: 500;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            background: rgba(200, 100, 31, 0.25);
            color: var(--accent);
            letter-spacing: 0.04em;
        }

        .hero-data-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

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

        .hero-data-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
        }

        .hero-data-value {
            font-family: var(--font-mono);
            font-size: 16px;
            font-weight: 600;
            color: #FFFFFF;
        }

        .hero-data-change {
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 500;
            padding: 2px 8px;
            border-radius: var(--radius-pill);
        }

        .hero-data-change.up {
            color: #E8A86C;
            background: rgba(200, 100, 31, 0.15);
        }

        .hero-data-change.down {
            color: #C8641F;
            background: rgba(200, 100, 31, 0.1);
        }

        /* Quick stats strip */
        .quick-stats {
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            padding: 28px 0;
        }

        .quick-stats .container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .quick-stat {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .quick-stat-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: rgba(200, 100, 31, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--accent);
            flex-shrink: 0;
        }

        .quick-stat-info {
            display: flex;
            flex-direction: column;
        }

        .quick-stat-value {
            font-family: var(--font-mono);
            font-size: 20px;
            font-weight: 700;
            color: var(--accent);
        }

        .quick-stat-label {
            font-size: 13px;
            color: var(--muted);
            margin-top: 1px;
        }

        /* Feature cards */
        .feature-cards {
            padding: 72px 0;
        }

        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px;
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }

        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: rgba(200, 100, 31, 0.3);
        }

        .feature-card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: rgba(200, 100, 31, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--accent);
            margin-bottom: 16px;
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text);
        }

        .feature-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.75;
        }

        /* Use cases */
        .use-cases {
            padding: 72px 0;
        }

        .use-case-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .use-case-item {
            background: var(--surface);
            border-left: 3px solid var(--accent);
            border-radius: 0 var(--radius) var(--radius) 0;
            padding: 20px;
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }

        .use-case-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateX(2px);
        }

        .use-case-item h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text);
        }

        .use-case-item p {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.7;
        }

        /* Screenshot demo */
        .screenshot-demo {
            padding: 72px 0;
            background: var(--primary);
        }

        .screenshot-demo .section-title {
            color: #FFFFFF;
        }

        .screenshot-demo .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }

        .screenshot-stage {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
            aspect-ratio: 21/9;
        }

        .screenshot-stage img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        .screenshot-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 24px 28px;
            background: linear-gradient(0deg, rgba(31, 42, 54, 0.9) 0%, transparent 100%);
            display: flex;
            align-items: flex-end;
            gap: 16px;
        }

        .screenshot-overlay span {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.85);
            font-family: var(--font-mono);
        }

        /* Featured reports */
        .featured-reports {
            padding: 72px 0;
        }

        .featured-reports-layout {
            display: grid;
            grid-template-columns: 0.6fr 1.4fr;
            gap: 40px;
            align-items: start;
        }

        .featured-reports-aside h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
        }

        .featured-reports-aside p {
            font-size: 15px;
            color: var(--muted);
            line-height: 1.8;
        }

        .report-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .report-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px 24px;
            box-shadow: var(--shadow);
            display: flex;
            align-items: flex-start;
            gap: 20px;
            transition: all var(--transition);
        }

        .report-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: rgba(200, 100, 31, 0.3);
        }

        .report-thumb {
            width: 72px;
            height: 72px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-alt);
        }

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

        .report-info {
            flex: 1;
            min-width: 0;
        }

        .report-meta {
            display: flex;
            gap: 12px;
            align-items: center;
            flex-wrap: wrap;
            margin-bottom: 6px;
        }

        .report-id {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--accent);
            font-weight: 600;
        }

        .report-date {
            font-size: 12px;
            color: var(--weak);
        }

        .report-tag {
            font-size: 11px;
            padding: 2px 8px;
            border-radius: var(--radius-pill);
            background: rgba(200, 100, 31, 0.1);
            color: var(--accent);
            font-weight: 500;
        }

        .report-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }

        .report-card p {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.65;
        }

        /* Success cases */
        .success-cases {
            padding: 72px 0;
        }

        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .case-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px;
            box-shadow: var(--shadow);
        }

        .case-card-quote {
            font-size: 15px;
            color: var(--text);
            line-height: 1.8;
            margin-bottom: 16px;
            position: relative;
            padding-left: 16px;
            border-left: 3px solid var(--accent);
        }

        .case-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .case-role {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
        }

        .case-scene {
            font-size: 12px;
            color: var(--weak);
        }

        /* Pricing */
        .pricing {
            padding: 72px 0;
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            align-items: stretch;
        }

        .price-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 28px;
            box-shadow: var(--shadow);
            display: flex;
            flex-direction: column;
            transition: all var(--transition);
            position: relative;
        }

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

        .price-card--featured {
            border: 2px solid var(--accent);
            box-shadow: 0 4px 24px rgba(200, 100, 31, 0.15);
        }

        .price-card--featured::before {
            content: '推荐';
            position: absolute;
            top: -12px;
            left: 24px;
            background: var(--accent);
            color: #FFFFFF;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 14px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.04em;
        }

        .price-name {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }

        .price-amount {
            font-family: var(--font-mono);
            font-size: 36px;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 4px;
        }

        .price-period {
            font-size: 13px;
            color: var(--weak);
            margin-bottom: 20px;
        }

        .price-features {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-bottom: 24px;
        }

        .price-features li {
            font-size: 14px;
            color: var(--muted);
            display: flex;
            align-items: center;
            gap: 8px;
            line-height: 1.6;
        }

        .price-features li::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }

        /* Testimonials */
        .testimonials {
            padding: 72px 0;
        }

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

        .testimonial-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
        }

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

        .testimonial-role {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
        }

        /* Rating section */
        .rating-section {
            padding: 72px 0;
        }

        .rating-layout {
            display: grid;
            grid-template-columns: 0.8fr 1.2fr;
            gap: 48px;
            align-items: center;
        }

        .rating-overall {
            text-align: center;
            padding: 32px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }

        .rating-score {
            font-family: var(--font-mono);
            font-size: 56px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 8px;
        }

        .rating-stars {
            font-size: 24px;
            color: var(--accent);
            letter-spacing: 4px;
            margin-bottom: 8px;
        }

        .rating-caption {
            font-size: 14px;
            color: var(--muted);
        }

        .rating-bars {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .rating-bar-item {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .rating-bar-label {
            width: 100px;
            font-size: 13px;
            color: var(--muted);
            font-weight: 500;
            flex-shrink: 0;
        }

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

        .rating-bar-fill {
            height: 100%;
            background: var(--accent);
            border-radius: 4px;
            transition: width var(--transition);
        }

        .rating-bar-score {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--text);
            font-weight: 600;
            width: 36px;
            text-align: right;
        }

        /* News list */
        .news-section {
            padding: 72px 0;
        }

        .news-layout {
            display: grid;
            grid-template-columns: 1.5fr 0.9fr;
            gap: 40px;
            align-items: start;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .news-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            background: var(--surface);
            border: 1px solid var(--border);
            transition: all var(--transition);
            cursor: pointer;
        }

        .news-item:hover {
            background: #FBF4EC;
            border-color: rgba(200, 100, 31, 0.3);
        }

        .news-date {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--accent);
            font-weight: 600;
            flex-shrink: 0;
        }

        .news-text {
            font-size: 14px;
            color: var(--text);
            flex: 1;
            min-width: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .news-sidebar {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
        }

        .news-sidebar h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 14px;
            color: var(--text);
        }

        .news-sidebar-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .news-sidebar-list li {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.6;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--border);
        }

        .news-sidebar-list li:last-child {
            border-bottom: none;
        }

        /* Industry indices table */
        .indices-section {
            padding: 72px 0;
        }

        .indices-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            background: var(--surface);
            box-shadow: var(--shadow);
        }

        .indices-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
            min-width: 640px;
        }

        .indices-table th {
            background: var(--bg-alt);
            padding: 14px 18px;
            text-align: left;
            font-weight: 600;
            color: var(--text);
            font-size: 13px;
            letter-spacing: 0.04em;
            border-bottom: 1px solid var(--border);
            white-space: nowrap;
        }

        .indices-table td {
            padding: 14px 18px;
            border-bottom: 1px solid var(--border);
            color: var(--muted);
            white-space: nowrap;
        }

        .indices-table tr:last-child td {
            border-bottom: none;
        }

        .indices-table td:last-child,
        .indices-table th:last-child {
            text-align: right;
        }

        .indices-table tbody tr {
            transition: background var(--transition);
        }

        .indices-table tbody tr:hover {
            background: #FBF4EC;
        }

        .index-value {
            font-family: var(--font-mono);
            font-weight: 600;
            color: var(--text);
        }

        .index-change {
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 500;
            padding: 2px 8px;
            border-radius: var(--radius-pill);
        }

        .index-change.positive {
            color: #C8641F;
            background: rgba(200, 100, 31, 0.1);
        }

        .index-change.negative {
            color: #8A929B;
            background: rgba(138, 146, 155, 0.1);
        }

        /* Topic cards */
        .topics-section {
            padding: 72px 0;
        }

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

        .topic-card {
            background: var(--surface);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }

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

        .topic-card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
        }

        .topic-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

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

        .topic-card-body h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text);
        }

        .topic-card-body p {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.7;
        }

        .topic-card--q1 {
            border-bottom: 3px solid #C8641F;
        }
        .topic-card--q2 {
            border-bottom: 3px solid #A0A8B0;
        }
        .topic-card--q3 {
            border-bottom: 3px solid #7D8A96;
        }

        /* Brand intro */
        .brand-intro {
            padding: 72px 0;
        }

        .brand-intro-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .brand-intro-text h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text);
        }

        .brand-intro-text p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--muted);
            margin-bottom: 12px;
        }

        .brand-intro-img {
            aspect-ratio: 4/3;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .brand-intro-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* FAQ */
        .faq-section {
            padding: 72px 0;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(200, 100, 31, 0.3);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            background: var(--surface);
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }

        .faq-question:hover {
            background: #FBF4EC;
        }

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

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

        .faq-answer {
            display: none;
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--muted);
            line-height: 1.75;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        /* CTA section */
        .cta-section {
            padding: 80px 0;
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/b0c6d246014075aa.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 680px;
        }

        .cta-section h2 {
            font-size: 32px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 28px;
            line-height: 1.8;
        }

        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 440px;
            margin: 0 auto;
            flex-wrap: wrap;
        }

        .cta-form input[type="email"] {
            flex: 1;
            min-width: 220px;
            padding: 12px 18px;
            font-size: 15px;
            border: 1.5px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.08);
            color: #FFFFFF;
            transition: all var(--transition);
        }

        .cta-form input[type="email"]::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .cta-form input[type="email"]:focus {
            outline: none;
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.12);
        }

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

        .footer-grid {
            display: grid;
            grid-template-columns: 1.3fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }

        .footer-brand h3 span {
            color: var(--accent);
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition);
        }

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

        .footer-bottom {
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.45);
            transition: color var(--transition);
        }

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

        .footer-legal {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* Back to top */
        .back-to-top {
            position: fixed;
            bottom: 24px;
            right: 24px;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--accent);
            color: #FFFFFF;
            border: none;
            font-size: 18px;
            cursor: pointer;
            box-shadow: var(--shadow-hover);
            transition: all var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            visibility: hidden;
            z-index: 900;
        }

        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
        }

        .back-to-top:hover {
            background: var(--accent-hover);
        }

        /* Responsive */
        @media screen and (max-width: 1024px) {
            section {
                padding: 56px 0;
            }
            .hero {
                min-height: 520px;
            }
            .hero h1 {
                font-size: 34px;
            }
            .hero .container {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .hero-card {
                max-width: 480px;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .use-case-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-reports-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .case-grid {
                grid-template-columns: 1fr;
            }
            .pricing-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .rating-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .news-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .brand-intro-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
            .quick-stats .container {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media screen and (max-width: 768px) {
            :root {
                --nav-height: 60px;
            }
            section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .hero {
                min-height: auto;
                padding: 48px 0;
            }
            .hero h1 {
                font-size: 28px;
                line-height: 1.35;
            }
            .hero-subtitle {
                font-size: 15px;
                line-height: 1.8;
                margin-bottom: 20px;
            }
            .hero-cta {
                flex-direction: column;
                gap: 10px;
            }
            .btn {
                width: 100%;
                padding: 12px 20px;
                font-size: 14px;
            }
            .hero-metrics {
                gap: 20px;
            }
            .hero-metric-value {
                font-size: 18px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .use-case-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .topics-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .quick-stats .container {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .quick-stat {
                gap: 10px;
            }
            .quick-stat-icon {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }
            .quick-stat-value {
                font-size: 16px;
            }
            .cta-section h2 {
                font-size: 24px;
            }
            .cta-form {
                flex-direction: column;
                gap: 10px;
            }
            .cta-form input[type="email"],
            .cta-form .btn {
                width: 100%;
            }
        }

        @media screen and (max-width: 520px) {
            .hero h1 {
                font-size: 24px;
            }
            .section-title {
                font-size: 22px;
            }
            .hero-metrics {
                gap: 14px;
                flex-direction: column;
            }
            .quick-stats .container {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .report-card {
                flex-direction: column;
                gap: 12px;
                padding: 16px;
            }
            .report-thumb {
                width: 100%;
                height: 140px;
                aspect-ratio: auto;
            }
            .footer-bottom {
                font-size: 11px;
            }
        }

        /* Navigation responsive */
        @media screen and (max-width: 960px) {
            .nav-links {
                display: none;
            }
            .nav-actions {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .mobile-nav .nav-links-mobile {
                display: flex;
                flex-direction: column;
                gap: 4px;
            }
            .mobile-nav .nav-actions-mobile {
                display: flex;
                flex-direction: column;
                gap: 10px;
                margin-top: 16px;
            }
        }

        @media screen and (min-width: 961px) {
            .nav-toggle {
                display: none;
            }
            .mobile-nav {
                display: none !important;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1F2A36;
            --primary-soft: #2D3A48;
            --accent: #C8641F;
            --accent-hover: #A35218;
            --bg: #F6F4EF;
            --bg-alt: #EDEAE3;
            --surface: #FFFFFF;
            --text: #1F2A36;
            --muted: #5C6670;
            --weak: #8A929B;
            --border: #E2DED5;
            --radius: 8px;
            --radius-sm: 6px;
            --radius-pill: 20px;
            --shadow: 0 2px 12px rgba(31, 42, 54, 0.06);
            --shadow-hover: 0 8px 28px rgba(31, 42, 54, 0.12);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-mono: 'Roboto Mono', 'SFMono-Regular', 'Consolas', monospace;
            --container: 1180px;
            --gutter: 24px;
            --nav-height: 72px;
            --transition: 0.25s 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);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

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

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

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

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

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

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 var(--gutter);
        }

        section {
            padding: 72px 0;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--muted);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 36px;
        }

        /* Header / Nav */
        .site-header {
            background-color: var(--primary);
            height: var(--nav-height);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: 0.04em;
            white-space: nowrap;
        }

        .brand-logo span {
            color: var(--accent);
        }

        .brand-logo:hover {
            color: #FFFFFF;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .nav-links a {
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 500;
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent);
            transition: width var(--transition);
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .nav-links a:hover {
            color: #FFFFFF;
        }

        .nav-links a.active {
            color: var(--accent);
        }

        .nav-links a.active::after {
            width: 100%;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .nav-btn {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #FFFFFF;
            background: transparent;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-btn:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.5);
            color: #FFFFFF;
        }

        .nav-btn--accent {
            border-color: var(--accent);
            background: transparent;
            color: var(--accent);
        }

        .nav-btn--accent:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #FFFFFF;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: #FFFFFF;
            font-size: 24px;
            line-height: 1;
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: #FFFFFF;
            margin: 5px 0;
            border-radius: 2px;
            transition: all var(--transition);
        }

        /* Mobile nav */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background-color: var(--primary);
            z-index: 999;
            padding: 20px 24px 28px;
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
            flex-direction: column;
            gap: 6px;
        }

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

        .mobile-nav a {
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 500;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .mobile-nav a.active {
            color: var(--accent);
        }

        .mobile-nav .nav-btn {
            margin-top: 12px;
            justify-content: center;
            width: 100%;
        }

        /* Category Hero */
        .category-hero {
            background-color: var(--bg-alt);
            padding: 40px 0 32px;
            border-bottom: 1px solid var(--border);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 16px;
        }

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

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

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

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

        .category-hero-inner {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 32px;
        }

        .category-hero-content {
            flex: 1;
            max-width: 720px;
        }

        .category-hero-content h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text);
            margin: 0 0 12px;
        }

        .category-hero-content p {
            font-size: 16px;
            color: var(--muted);
            line-height: 1.8;
            margin: 0;
        }

        .category-hero-icon {
            flex-shrink: 0;
            width: 72px;
            height: 72px;
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
            font-weight: 700;
            color: var(--accent);
            font-family: var(--font-mono);
            box-shadow: var(--shadow);
        }

        /* Filter Tags */
        .filter-section {
            padding: 24px 0;
            background-color: var(--bg);
            border-bottom: 1px solid var(--border);
        }

        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
        }

        .filter-label {
            font-size: 14px;
            color: var(--muted);
            margin-right: 4px;
            font-weight: 500;
        }

        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-pill);
            border: 1px solid var(--border);
            color: var(--muted);
            background: var(--surface);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .filter-tag:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        .filter-tag.active {
            border-color: var(--accent);
            color: var(--accent);
            background: #FBF4EC;
        }

        /* Article Stream */
        .article-stream {
            background-color: var(--bg);
        }

        .article-stream .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 32px;
            flex-wrap: wrap;
            gap: 16px;
        }

        .article-stream .section-title {
            margin-bottom: 8px;
        }

        .article-stream .section-subtitle {
            margin-bottom: 0;
        }

        .article-count {
            font-size: 14px;
            color: var(--weak);
            font-family: var(--font-mono);
        }

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

        .article-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: #D5CFC5;
        }

        .article-card-image {
            width: 100%;
            height: 180px;
            overflow: hidden;
            position: relative;
            background-color: var(--bg-alt);
        }

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

        .article-card:hover .article-card-image img {
            transform: scale(1.03);
        }

        .article-card-image .article-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background-color: var(--accent);
            color: #FFFFFF;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.04em;
        }

        .article-card-body {
            padding: 20px 20px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .article-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--weak);
            margin-bottom: 10px;
            font-family: var(--font-mono);
            flex-wrap: wrap;
        }

        .article-card-meta .report-id {
            color: var(--accent);
            font-weight: 500;
        }

        .article-card-title {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.45;
            color: var(--text);
            margin-bottom: 10px;
        }

        .article-card-title a {
            color: inherit;
        }

        .article-card-title a:hover {
            color: var(--accent);
        }

        .article-card-excerpt {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.75;
            flex: 1;
            margin-bottom: 16px;
        }

        .article-card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition);
        }

        .article-card-link:hover {
            color: var(--accent-hover);
        }

        .view-more-wrap {
            margin-top: 32px;
            text-align: center;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
            font-size: 15px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            color: var(--muted);
            background: transparent;
            cursor: pointer;
            transition: all var(--transition);
        }

        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: #FBF4EC;
        }

        /* Data Summary */
        .data-summary {
            background-color: var(--bg-alt);
            padding: 56px 0;
        }

        .data-summary-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }

        .data-summary-text h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            line-height: 1.35;
        }

        .data-summary-text p {
            font-size: 15px;
            color: var(--muted);
            line-height: 1.85;
            margin-bottom: 16px;
        }

        .data-stats {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
        }

        .stat-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 20px;
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .stat-number {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1;
            white-space: nowrap;
        }

        .stat-label {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.5;
        }

        /* Featured Topics */
        .featured-topics {
            background-color: var(--bg);
        }

        .topic-cards {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 20px;
        }

        .topic-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 24px;
            transition: all var(--transition);
            border-bottom: 3px solid transparent;
        }

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

        .topic-card:nth-child(1) {
            border-bottom-color: #C8641F;
        }

        .topic-card:nth-child(2) {
            border-bottom-color: #4A6B8A;
        }

        .topic-card:nth-child(3) {
            border-bottom-color: #6B7D5C;
        }

        .topic-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .topic-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .topic-card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* Subscribe CTA */
        .subscribe-cta {
            background-color: var(--bg-alt);
            padding: 48px 0;
        }

        .subscribe-banner {
            background-color: var(--primary);
            border-radius: var(--radius);
            padding: 32px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .subscribe-banner h3 {
            font-size: 22px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 8px;
        }

        .subscribe-banner p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin: 0;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .subscribe-form input[type="email"] {
            padding: 10px 16px;
            font-size: 14px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.1);
            color: #FFFFFF;
            min-width: 240px;
            transition: all var(--transition);
        }

        .subscribe-form input[type="email"]::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }

        .subscribe-form input[type="email"]:focus {
            outline: none;
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.15);
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 20px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: none;
            background-color: var(--accent);
            color: #FFFFFF;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-accent:hover {
            background-color: var(--accent-hover);
        }

        /* Related Resources */
        .related-resources {
            background-color: var(--bg);
        }

        .resource-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .resource-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 20px;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 8px;
        }

        .resource-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: #D5CFC5;
        }

        .resource-card-icon {
            font-size: 24px;
            color: var(--accent);
            margin-bottom: 4px;
        }

        .resource-card h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin: 0;
            line-height: 1.4;
        }

        .resource-card p {
            font-size: 13px;
            color: var(--weak);
            margin: 0;
            line-height: 1.6;
        }

        /* Back to Home */
        .back-home {
            background-color: var(--bg-alt);
            padding: 32px 0;
            text-align: center;
        }

        .back-home-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--accent);
            padding: 10px 24px;
            border: 1px solid var(--accent);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }

        .back-home-link:hover {
            background: var(--accent);
            color: #FFFFFF;
        }

        /* Footer */
        .site-footer {
            background-color: var(--primary);
            color: #FFFFFF;
            padding: 56px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }

        .footer-brand h3 span {
            color: var(--accent);
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.75;
            margin: 0;
            max-width: 300px;
        }

        .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: 10px;
        }

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

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

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

        .footer-legal a {
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-legal a:hover {
            color: var(--accent);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-links {
                gap: 16px;
            }

            .nav-actions {
                gap: 8px;
            }

            .nav-btn {
                padding: 6px 12px;
                font-size: 13px;
            }

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

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

            .topic-cards {
                grid-template-columns: 1fr 1fr;
            }

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

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

            .nav-links {
                display: none;
            }

            .nav-actions {
                display: none;
            }

            .nav-toggle {
                display: block;
            }

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

            .category-hero-icon {
                width: 56px;
                height: 56px;
                font-size: 24px;
            }

            section {
                padding: 48px 0;
            }

            .section-title {
                font-size: 26px;
            }

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

            .article-card-image {
                height: 160px;
            }

            .topic-cards {
                grid-template-columns: 1fr;
            }

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

            .subscribe-banner {
                padding: 24px;
                flex-direction: column;
                align-items: flex-start;
            }

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

            .subscribe-form {
                width: 100%;
            }

            .subscribe-form .btn-accent {
                width: 100%;
                justify-content: center;
            }

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

            .footer-brand {
                grid-column: span 2;
            }

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

            .footer-legal {
                gap: 10px;
            }

            .data-summary {
                padding: 40px 0;
            }
        }

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

            .category-hero {
                padding: 28px 0 24px;
            }

            .category-hero-inner {
                flex-direction: column;
                gap: 16px;
            }

            .category-hero-icon {
                width: 48px;
                height: 48px;
                font-size: 20px;
            }

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

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

            .filter-tags {
                gap: 6px;
            }

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

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

            .article-card-body {
                padding: 16px;
            }

            .article-card-title {
                font-size: 16px;
            }

            .stat-number {
                font-size: 22px;
            }

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

            .footer-brand {
                grid-column: span 1;
            }

            .subscribe-banner h3 {
                font-size: 18px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1F2A36;
            --primary-soft: #2D3A48;
            --accent: #C8641F;
            --accent-hover: #A35218;
            --bg: #F6F4EF;
            --bg-alt: #EDEAE3;
            --surface: #FFFFFF;
            --text: #1F2A36;
            --muted: #5C6670;
            --weak: #8A929B;
            --border: #E2DED5;
            --radius: 8px;
            --radius-sm: 6px;
            --radius-pill: 20px;
            --shadow: 0 2px 12px rgba(31, 42, 54, 0.06);
            --shadow-hover: 0 8px 28px rgba(31, 42, 54, 0.12);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-mono: 'Roboto Mono', 'SFMono-Regular', 'Consolas', monospace;
            --container: 1180px;
            --gutter: 24px;
            --nav-height: 72px;
            --transition: 0.25s ease;
        }

        * {
            margin: 0;
            padding: 0;
            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);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

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

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

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 var(--gutter);
        }

        section {
            padding: 72px 0;
        }

        section:nth-of-type(even) {
            background-color: var(--bg-alt);
        }

        section:nth-of-type(odd) {
            background-color: var(--bg);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--muted);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 36px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: 1px solid var(--accent);
            background: var(--accent);
            color: #FFFFFF;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

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

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

        .btn--ghost {
            background: transparent;
            border-color: var(--border);
            color: var(--text);
        }

        .btn--ghost:hover {
            background: var(--bg-alt);
            border-color: var(--muted);
            color: var(--text);
        }

        .btn--sm {
            padding: 8px 18px;
            font-size: 14px;
        }

        .badge {
            display: inline-block;
            padding: 3px 12px;
            font-size: 12px;
            font-weight: 500;
            border-radius: var(--radius-pill);
            background: var(--bg-alt);
            color: var(--muted);
            letter-spacing: 0.02em;
        }

        .badge--accent {
            background: rgba(200, 100, 31, 0.1);
            color: var(--accent);
        }

        /* Header */
        .site-header {
            background-color: var(--primary);
            height: var(--nav-height);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: 0.04em;
            white-space: nowrap;
        }

        .brand-logo span {
            color: var(--accent);
        }

        .brand-logo:hover {
            color: #FFFFFF;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .nav-links a {
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 500;
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent);
            transition: width var(--transition);
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .nav-links a:hover {
            color: #FFFFFF;
        }

        .nav-links a.active {
            color: var(--accent);
            font-weight: 600;
        }

        .nav-links a.active::after {
            width: 100%;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .nav-btn {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #FFFFFF;
            background: transparent;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-btn:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.5);
            color: #FFFFFF;
        }

        .nav-btn--accent {
            border-color: var(--accent);
            background: transparent;
            color: var(--accent);
        }

        .nav-btn--accent:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #FFFFFF;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: #FFFFFF;
            font-size: 24px;
            line-height: 1;
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: #FFFFFF;
            margin: 5px 0;
            border-radius: 2px;
            transition: all var(--transition);
        }

        /* Category Hero */
        .category-hero {
            background: linear-gradient(180deg, #F6F4EF 0%, #EDEAE3 100%);
            padding: 48px 0 40px;
            border-bottom: 1px solid var(--border);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--muted);
            transition: color var(--transition);
        }

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

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

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

        .category-hero-content {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }

        .category-hero-text {
            flex: 1;
            min-width: 280px;
        }

        .category-hero-text h1 {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text);
            margin-bottom: 14px;
        }

        .category-hero-text p {
            font-size: 16px;
            color: var(--muted);
            line-height: 1.8;
            max-width: 640px;
        }

        .category-hero-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 20px;
            flex-wrap: wrap;
        }

        .category-hero-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--muted);
        }

        .category-hero-meta .meta-item .num {
            font-family: var(--font-mono);
            font-weight: 600;
            color: var(--accent);
            font-size: 15px;
        }

        /* Filter Bar */
        .filter-bar {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
            margin-bottom: 32px;
        }

        .filter-btn {
            padding: 7px 18px;
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-pill);
            border: 1px solid var(--border);
            background: transparent;
            color: var(--muted);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .filter-btn:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(200, 100, 31, 0.05);
        }

        .filter-btn.active {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(200, 100, 31, 0.08);
            font-weight: 600;
        }

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

        /* Timeline List */
        .timeline-section {
            background: var(--bg);
        }

        .timeline {
            position: relative;
            padding-left: 32px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--border);
            border-radius: 1px;
        }

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

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

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 8px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--surface);
            border: 3px solid var(--accent);
            box-shadow: 0 0 0 3px rgba(200, 100, 31, 0.15);
            z-index: 1;
        }

        .timeline-item-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .timeline-date {
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 0.02em;
            background: rgba(200, 100, 31, 0.08);
            padding: 3px 12px;
            border-radius: var(--radius-pill);
        }

        .timeline-report-id {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--weak);
        }

        .timeline-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            display: flex;
            gap: 24px;
            align-items: flex-start;
        }

        .timeline-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: rgba(200, 100, 31, 0.25);
        }

        .timeline-card-image {
            width: 120px;
            height: 84px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-alt);
        }

        .timeline-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

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

        .timeline-card-title {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text);
            margin-bottom: 8px;
        }

        .timeline-card-summary {
            font-size: 15px;
            color: var(--muted);
            line-height: 1.75;
            margin-bottom: 12px;
        }

        .timeline-card-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        /* Stats Section */
        .stats-section {
            background: var(--primary);
            padding: 48px 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .stat-block {
            text-align: center;
            padding: 8px 0;
        }

        .stat-number {
            font-family: var(--font-mono);
            font-size: 36px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            letter-spacing: 0.03em;
        }

        /* Featured Topics */
        .topics-section {
            background: var(--bg);
        }

        .topics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 8px;
        }

        .topic-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            text-align: left;
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }

        .topic-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--accent);
            opacity: 0;
            transition: opacity var(--transition);
        }

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

        .topic-card:hover::before {
            opacity: 1;
        }

        .topic-card-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 10px;
        }

        .topic-card h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.45;
            margin-bottom: 8px;
        }

        .topic-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }

        /* Subscribe CTA */
        .subscribe-cta {
            background: var(--bg-alt);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 40px 0;
        }

        .subscribe-cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .subscribe-cta-text {
            flex: 1;
            min-width: 260px;
        }

        .subscribe-cta-text h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }

        .subscribe-cta-text p {
            font-size: 15px;
            color: var(--muted);
        }

        .subscribe-cta-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            align-items: center;
        }

        .subscribe-cta-form input {
            padding: 11px 16px;
            font-size: 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background: var(--surface);
            color: var(--text);
            min-width: 240px;
            transition: border-color var(--transition);
        }

        .subscribe-cta-form input:focus {
            border-color: var(--accent);
            outline: none;
        }

        /* Resources */
        .resources-section {
            background: var(--bg);
        }

        .resources-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .resource-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 8px;
        }

        .resource-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: rgba(200, 100, 31, 0.25);
        }

        .resource-card .resource-icon {
            font-size: 24px;
            color: var(--accent);
            margin-bottom: 4px;
        }

        .resource-card h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
        }

        .resource-card p {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.6;
        }

        /* Back Home */
        .back-home-section {
            background: var(--bg-alt);
            text-align: center;
            padding: 32px 0;
        }

        .back-home-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            padding: 10px 24px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background: var(--surface);
            transition: all var(--transition);
        }

        .back-home-link:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(200, 100, 31, 0.04);
        }

        /* Footer */
        .site-footer {
            background-color: var(--primary);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }

        .footer-brand h3 span {
            color: var(--accent);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }

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

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

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

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

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

        .footer-legal a {
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition);
        }

        .footer-legal a:hover {
            color: var(--accent);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-links {
                gap: 18px;
            }

            .nav-links a {
                font-size: 14px;
            }

            .nav-actions {
                gap: 8px;
            }

            .nav-btn {
                padding: 7px 12px;
                font-size: 13px;
            }

            .resources-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

            section {
                padding: 40px 0;
            }

            .section-title {
                font-size: 26px;
            }

            .nav-links {
                display: none;
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--primary);
                flex-direction: column;
                gap: 0;
                padding: 16px 24px;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
                z-index: 999;
            }

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

            .nav-links a {
                padding: 12px 0;
                font-size: 16px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            }

            .nav-links a::after {
                display: none;
            }

            .nav-actions {
                display: none;
            }

            .nav-toggle {
                display: block;
            }

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

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

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

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

            .category-hero-text h1 {
                font-size: 30px;
            }

            .timeline {
                padding-left: 24px;
            }

            .timeline-item::before {
                left: -20px;
                width: 12px;
                height: 12px;
            }

            .timeline-card {
                flex-direction: column;
                padding: 18px;
            }

            .timeline-card-image {
                width: 100%;
                height: 140px;
            }

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

            .stat-number {
                font-size: 28px;
            }

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

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

            .subscribe-cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }

            .subscribe-cta-form input {
                min-width: 100%;
            }

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

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

        @media (max-width: 520px) {
            .category-hero-text h1 {
                font-size: 26px;
            }

            .breadcrumb {
                font-size: 12px;
            }

            .filter-btn {
                padding: 6px 14px;
                font-size: 13px;
            }

            .timeline-card-title {
                font-size: 16px;
            }

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

            .container {
                padding: 0 16px;
            }

            .site-header .container {
                padding: 0 16px;
            }

            .brand-logo {
                font-size: 18px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1F2A36;
            --primary-soft: #2D3A48;
            --accent: #C8641F;
            --accent-hover: #A35218;
            --bg: #F6F4EF;
            --bg-alt: #EDEAE3;
            --surface: #FFFFFF;
            --text: #1F2A36;
            --muted: #5C6670;
            --weak: #8A929B;
            --border: #E2DED5;
            --radius: 8px;
            --radius-sm: 6px;
            --radius-pill: 20px;
            --shadow: 0 2px 12px rgba(31, 42, 54, 0.06);
            --shadow-hover: 0 8px 28px rgba(31, 42, 54, 0.12);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-mono: 'Roboto Mono', 'SFMono-Regular', 'Consolas', monospace;
            --container: 1180px;
            --gutter: 24px;
            --nav-height: 72px;
            --transition: 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 var(--gutter);
        }
        section {
            padding: 64px 0;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text);
            margin-bottom: 14px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--muted);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 32px;
        }
        .section-title--light {
            color: #FFFFFF;
        }
        .section-subtitle--light {
            color: rgba(255, 255, 255, 0.75);
        }

        /* Header / Nav */
        .site-header {
            background-color: var(--primary);
            height: var(--nav-height);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: 0.04em;
            white-space: nowrap;
        }
        .brand-logo span {
            color: var(--accent);
        }
        .brand-logo:hover {
            color: #FFFFFF;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-links a {
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 500;
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent);
            transition: width var(--transition);
        }
        .nav-links a:hover::after {
            width: 100%;
        }
        .nav-links a:hover {
            color: #FFFFFF;
        }
        .nav-links a.active {
            color: var(--accent);
        }
        .nav-links a.active::after {
            width: 100%;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .nav-btn {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #FFFFFF;
            background: transparent;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-btn:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.5);
            color: #FFFFFF;
        }
        .nav-btn--accent {
            border-color: var(--accent);
            background: transparent;
            color: var(--accent);
        }
        .nav-btn--accent:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #FFFFFF;
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: #FFFFFF;
            font-size: 24px;
            line-height: 1;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: #FFFFFF;
            margin: 5px 0;
            border-radius: 2px;
            transition: all var(--transition);
        }
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background-color: var(--primary);
            padding: 20px var(--gutter);
            z-index: 999;
            box-shadow: var(--shadow-hover);
        }
        .mobile-nav a {
            display: block;
            padding: 12px 0;
            color: #FFFFFF;
            font-size: 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .mobile-nav a:hover {
            color: var(--accent);
        }
        .mobile-nav.open {
            display: block;
        }

        /* Breadcrumb Hero */
        .category-hero {
            background-color: var(--bg-alt);
            padding: 48px 0 42px;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--muted);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .sep {
            color: var(--weak);
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 500;
        }
        .category-hero h1 {
            font-size: 40px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.25;
        }
        .category-hero .hero-desc {
            font-size: 16px;
            color: var(--muted);
            max-width: 720px;
            line-height: 1.8;
        }

        /* Filter Tags */
        .filter-bar {
            background-color: var(--surface);
            padding: 18px 0;
            border-bottom: 1px solid var(--border);
        }
        .filter-bar .container {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .filter-bar .filter-label {
            font-size: 14px;
            color: var(--muted);
            font-weight: 500;
            margin-right: 6px;
            white-space: nowrap;
        }
        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            font-size: 14px;
            border-radius: var(--radius-pill);
            border: 1px solid var(--border);
            color: var(--muted);
            background: var(--surface);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .filter-tag:hover {
            border-color: var(--accent);
            color: var(--accent);
        }
        .filter-tag.active {
            border-color: var(--accent);
            color: var(--accent);
            background: #FBF4EC;
            font-weight: 500;
        }

        /* Article Grid - 双列文章流 */
        .article-grid-section {
            background-color: var(--bg);
        }
        .article-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .article-card {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: #D5CFC2;
        }
        .article-card .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            overflow: hidden;
            background-color: var(--bg-alt);
            position: relative;
        }
        .article-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .article-card:hover .card-img img {
            transform: scale(1.03);
        }
        .article-card .card-tag-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: #FFFFFF;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.04em;
        }
        .article-card .card-body {
            padding: 22px 24px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .article-card .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--weak);
            margin-bottom: 10px;
            flex-wrap: wrap;
        }
        .article-card .card-meta .report-no {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--accent);
            border: 1px solid #E8D5C0;
            padding: 2px 8px;
            border-radius: var(--radius-sm);
            background: #FBF4EC;
        }
        .article-card h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.45;
            margin-bottom: 10px;
        }
        .article-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.75;
            margin-bottom: 14px;
            flex: 1;
        }
        .article-card .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-card .card-link:hover {
            color: var(--accent-hover);
        }
        .view-more-row {
            display: flex;
            justify-content: center;
            margin-top: 36px;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: 1.5px solid var(--accent);
            color: var(--accent);
            background: transparent;
            cursor: pointer;
            transition: all var(--transition);
            min-width: 180px;
        }
        .btn-outline:hover {
            background: var(--accent);
            color: #FFFFFF;
            border-color: var(--accent);
        }

        /* Stats Summary */
        .stats-section {
            background-color: var(--primary);
        }
        .stats-section .section-title {
            color: #FFFFFF;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 12px;
        }
        .stat-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius);
            padding: 24px;
            text-align: center;
        }
        .stat-card .stat-number {
            font-family: var(--font-mono);
            font-size: 36px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 8px;
        }
        .stat-card .stat-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
        }
        .stat-card .stat-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 6px;
            line-height: 1.6;
        }

        /* Feature Topics */
        .topics-section {
            background-color: var(--bg-alt);
        }
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .topic-card {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: 26px 24px;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
        }
        .topic-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--accent);
            opacity: 0.7;
        }
        .topic-card:nth-child(2)::before {
            background: #6B8A7A;
        }
        .topic-card:nth-child(3)::before {
            background: #8B6F5C;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .topic-card .topic-icon {
            font-size: 28px;
            margin-bottom: 14px;
            color: var(--accent);
        }
        .topic-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .topic-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.75;
            margin-bottom: 14px;
            flex: 1;
        }
        .topic-card a {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
        }
        .topic-card a:hover {
            color: var(--accent-hover);
        }

        /* Subscribe CTA */
        .subscribe-cta {
            background-color: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .subscribe-cta .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            flex-wrap: wrap;
        }
        .subscribe-cta .cta-left h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .subscribe-cta .cta-left p {
            font-size: 15px;
            color: var(--muted);
        }
        .subscribe-form {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .subscribe-form input[type="email"] {
            padding: 10px 16px;
            font-size: 15px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background: var(--bg);
            color: var(--text);
            min-width: 260px;
            transition: border-color var(--transition);
        }
        .subscribe-form input[type="email"]:focus {
            border-color: var(--accent);
            outline: none;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: none;
            background: var(--accent);
            color: #FFFFFF;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: var(--accent-hover);
        }

        /* Related Resources */
        .resources-section {
            background-color: var(--bg);
        }
        .resources-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        .resource-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 20px 18px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            transition: all var(--transition);
            cursor: pointer;
        }
        .resource-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: #D5CFC2;
            transform: translateY(-2px);
        }
        .resource-card .resource-icon {
            font-size: 22px;
            color: var(--accent);
            flex-shrink: 0;
            margin-top: 2px;
        }
        .resource-card h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .resource-card p {
            font-size: 13px;
            color: var(--weak);
            line-height: 1.6;
        }

        /* Back Home */
        .back-home {
            background-color: var(--bg-alt);
            padding: 36px 0;
            text-align: center;
            border-top: 1px solid var(--border);
        }
        .back-home a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            padding: 10px 22px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background: var(--surface);
            transition: all var(--transition);
        }
        .back-home a:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        /* Footer */
        .site-footer {
            background-color: var(--primary);
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }
        .footer-brand h3 span {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.65);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 18px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-legal {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-legal a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 13px;
        }
        .footer-legal a:hover {
            color: var(--accent);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-links {
                gap: 18px;
            }
            .nav-links a {
                font-size: 14px;
            }
            .nav-actions {
                gap: 8px;
            }
            .nav-btn {
                padding: 6px 10px;
                font-size: 13px;
            }
            .resources-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }
            .footer-brand {
                grid-column: span 3;
            }
        }
        @media (max-width: 768px) {
            :root {
                --nav-height: 60px;
            }
            .nav-links {
                display: none;
            }
            .nav-actions {
                display: none;
            }
            .nav-toggle {
                display: flex;
                flex-direction: column;
                align-items: center;
                justify-content: center;
                gap: 0;
            }
            section {
                padding: 40px 0;
            }
            .category-hero {
                padding: 32px 0 28px;
            }
            .category-hero h1 {
                font-size: 30px;
            }
            .category-hero .hero-desc {
                font-size: 15px;
            }
            .article-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .article-card .card-body {
                padding: 18px 18px 20px;
            }
            .article-card h3 {
                font-size: 17px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .stat-card .stat-number {
                font-size: 28px;
            }
            .topics-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .subscribe-cta .container {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }
            .subscribe-form {
                width: 100%;
                flex-direction: column;
                align-items: stretch;
            }
            .subscribe-form input[type="email"] {
                min-width: 0;
                width: 100%;
            }
            .resources-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: span 1;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .footer-legal {
                gap: 10px;
            }
            .filter-bar .container {
                gap: 8px;
            }
            .filter-tag {
                padding: 5px 12px;
                font-size: 13px;
            }
            .section-title {
                font-size: 24px;
            }
        }
        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 26px;
            }
            .category-hero {
                padding: 24px 0 20px;
            }
            .article-card h3 {
                font-size: 16px;
            }
            .article-card p {
                font-size: 13px;
            }
            .btn-outline {
                width: 100%;
            }
            .subscribe-cta .cta-left h2 {
                font-size: 20px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #1F2A36;
            --primary-soft: #2D3A48;
            --accent: #C8641F;
            --accent-hover: #A35218;
            --bg: #F6F4EF;
            --bg-alt: #EDEAE3;
            --surface: #FFFFFF;
            --text: #1F2A36;
            --muted: #5C6670;
            --weak: #8A929B;
            --border: #E2DED5;
            --radius: 8px;
            --radius-sm: 6px;
            --radius-pill: 20px;
            --shadow: 0 2px 12px rgba(31, 42, 54, 0.06);
            --shadow-hover: 0 8px 28px rgba(31, 42, 54, 0.12);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-mono: 'Roboto Mono', 'SFMono-Regular', 'Consolas', monospace;
            --container: 1180px;
            --gutter: 24px;
            --nav-height: 72px;
            --transition: 0.25s ease;
        }
        :root {
            --nav-height: 60px;
        }
        * {
            margin: 0;
            padding: 0;
            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);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 var(--gutter);
        }
        section {
            padding: 72px 0;
        }
        section:nth-of-type(even) {
            background-color: var(--bg-alt);
        }
        section:nth-of-type(odd) {
            background-color: var(--bg);
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 16px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--muted);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 36px;
        }
        .section-title--light {
            color: #FFFFFF;
        }
        .section-subtitle--light {
            color: rgba(255, 255, 255, 0.75);
        }

        /* Header / Nav */
        .site-header {
            background-color: var(--primary);
            height: var(--nav-height);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: 0.04em;
            white-space: nowrap;
        }
        .brand-logo span {
            color: var(--accent);
        }
        .brand-logo:hover {
            color: #FFFFFF;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-links a {
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 500;
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent);
            transition: width var(--transition);
        }
        .nav-links a:hover::after {
            width: 100%;
        }
        .nav-links a:hover {
            color: #FFFFFF;
        }
        .nav-links a.active {
            color: var(--accent);
        }
        .nav-links a.active::after {
            width: 100%;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .nav-btn {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #FFFFFF;
            background: transparent;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-btn:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.5);
            color: #FFFFFF;
        }
        .nav-btn--accent {
            border-color: var(--accent);
            background: transparent;
            color: var(--accent);
        }
        .nav-btn--accent:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #FFFFFF;
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: #FFFFFF;
            font-size: 24px;
            line-height: 1;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: #FFFFFF;
            margin: 5px 0;
            border-radius: 2px;
            transition: all var(--transition);
        }
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background-color: var(--primary);
            z-index: 999;
            padding: 24px;
            flex-direction: column;
            gap: 16px;
            overflow-y: auto;
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav a {
            color: #FFFFFF;
            font-size: 18px;
            font-weight: 500;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .mobile-nav a:hover {
            color: var(--accent);
        }
        .mobile-nav a.active {
            color: var(--accent);
        }

        /* Hero - Category */
        .category-hero {
            background-color: var(--bg-alt);
            padding: 56px 0 48px;
            border-bottom: 1px solid var(--border);
        }
        .category-hero .container {
            display: flex;
            flex-wrap: wrap;
            align-items: flex-start;
            justify-content: space-between;
            gap: 24px;
        }
        .breadcrumb {
            font-size: 14px;
            color: var(--weak);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--muted);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .sep {
            color: var(--weak);
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--accent);
            font-weight: 600;
        }
        .category-hero h1 {
            font-size: 42px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .category-hero .hero-desc {
            font-size: 17px;
            color: var(--muted);
            line-height: 1.8;
            max-width: 720px;
        }
        .category-hero .hero-icon {
            flex-shrink: 0;
            width: 96px;
            height: 96px;
            background-color: var(--surface);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 44px;
            font-weight: 700;
            color: var(--accent);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .hero-icon span {
            font-family: var(--font-mono);
            letter-spacing: -0.04em;
        }

        /* Filter bar */
        .filter-bar {
            background-color: var(--surface);
            border-bottom: 1px solid var(--border);
            padding: 16px 0;
            position: sticky;
            top: var(--nav-height);
            z-index: 100;
        }
        .filter-bar .container {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .filter-btn {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-pill);
            border: 1px solid var(--border);
            background-color: transparent;
            color: var(--muted);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .filter-btn:hover {
            border-color: var(--accent);
            color: var(--accent);
            background-color: #FBF4EC;
        }
        .filter-btn.active {
            border-color: var(--accent);
            color: var(--accent);
            background-color: #FBF4EC;
            font-weight: 600;
        }

        /* Resource grid */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 40px;
        }
        .resource-card {
            background-color: var(--surface);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .resource-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .resource-card .thumb {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background-color: var(--bg-alt);
            position: relative;
        }
        .resource-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .resource-card:hover .thumb img {
            transform: scale(1.03);
        }
        .resource-card .thumb .file-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            background-color: rgba(31, 42, 54, 0.82);
            color: #FFFFFF;
            letter-spacing: 0.04em;
            font-family: var(--font-mono);
        }
        .resource-card .body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .resource-card .body h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.45;
            color: var(--text);
            margin-bottom: 10px;
        }
        .resource-card .body p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 14px;
        }
        .resource-card .meta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 14px;
            font-size: 13px;
            font-family: var(--font-mono);
            color: var(--weak);
            border-top: 1px solid var(--border);
            padding-top: 14px;
            margin-bottom: 14px;
        }
        .resource-card .meta-row span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .resource-card .card-action {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 18px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            background-color: var(--accent);
            color: #FFFFFF;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-align: center;
        }
        .resource-card .card-action:hover {
            background-color: var(--accent-hover);
            color: #FFFFFF;
        }
        .resource-card .card-action:active {
            transform: translateY(1px);
        }

        /* Stats section */
        .res-stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 32px;
        }
        .res-stat-card {
            background-color: var(--surface);
            border-radius: var(--radius);
            padding: 28px 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            text-align: center;
            transition: all var(--transition);
        }
        .res-stat-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .res-stat-card .num {
            font-family: var(--font-mono);
            font-size: 36px;
            font-weight: 700;
            color: var(--accent);
            display: block;
            margin-bottom: 8px;
            letter-spacing: -0.02em;
        }
        .res-stat-card .label {
            font-size: 15px;
            color: var(--muted);
            font-weight: 500;
        }
        .res-stat-card .label small {
            display: block;
            font-size: 13px;
            color: var(--weak);
            font-weight: 400;
            margin-top: 4px;
        }

        /* Featured topics */
        .topic-recos {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 32px;
        }
        .topic-card {
            background-color: var(--surface);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            border-bottom: 4px solid var(--accent);
        }
        .topic-card:nth-child(2) {
            border-bottom-color: #B8860B;
        }
        .topic-card:nth-child(3) {
            border-bottom-color: #6A8CA6;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .topic-card .topic-thumb {
            aspect-ratio: 16 / 8;
            overflow: hidden;
            background-color: var(--bg-alt);
        }
        .topic-card .topic-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .topic-card .topic-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .topic-card .topic-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }
        .topic-card .topic-body p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 8px;
        }
        .topic-card .topic-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
        }

        /* Subscribe CTA */
        .subscribe-cta-res {
            background-color: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: 32px 28px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            margin-top: 32px;
        }
        .subscribe-cta-res .cta-text {
            flex: 1;
            min-width: 220px;
        }
        .subscribe-cta-res .cta-text h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }
        .subscribe-cta-res .cta-text p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.6;
        }
        .subscribe-cta-res .cta-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .subscribe-cta-res .cta-form input {
            flex: 1;
            min-width: 220px;
            padding: 12px 16px;
            font-size: 15px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            background-color: var(--bg);
            color: var(--text);
            transition: all var(--transition);
        }
        .subscribe-cta-res .cta-form input:focus {
            border-color: var(--accent);
            outline: none;
        }
        .subscribe-cta-res .cta-form .btn-subscribe {
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: none;
            background-color: var(--accent);
            color: #FFFFFF;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .subscribe-cta-res .cta-form .btn-subscribe:hover {
            background-color: var(--accent-hover);
        }

        /* Related mini links */
        .rel-mini-links {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 32px;
        }
        .rel-mini-card {
            background-color: var(--surface);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            padding: 18px 20px;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .rel-mini-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--accent);
        }
        .rel-mini-card .rel-icon {
            font-size: 24px;
            color: var(--accent);
            font-weight: 700;
        }
        .rel-mini-card h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
        }
        .rel-mini-card p {
            font-size: 13px;
            color: var(--weak);
            line-height: 1.5;
        }

        /* Back to home */
        .back-home {
            text-align: center;
            padding: 40px 0 32px;
        }
        .back-home a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            color: var(--accent);
            transition: all var(--transition);
        }
        .back-home a:hover {
            color: var(--accent-hover);
        }

        /* Footer */
        .site-footer {
            background-color: var(--primary);
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }
        .footer-brand h3 span {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 24px 0 32px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-legal {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .footer-legal a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 13px;
        }
        .footer-legal a:hover {
            color: var(--accent);
        }

        /* Responsive */
        @media (max-width: 1023px) {
            .nav-links {
                gap: 16px;
            }
            .nav-links a {
                font-size: 14px;
            }
            .nav-actions {
                gap: 8px;
            }
            .nav-btn {
                padding: 6px 12px;
                font-size: 13px;
            }
            .resource-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .topic-recos {
                grid-template-columns: repeat(2, 1fr);
            }
            .rel-mini-links {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .category-hero h1 {
                font-size: 34px;
            }
            .res-stats-grid {
                gap: 16px;
            }
            .res-stat-card .num {
                font-size: 30px;
            }
        }
        @media (max-width: 767px) {
            .nav-links {
                display: none;
            }
            .nav-actions {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .site-header {
                height: 56px;
            }
            :root {
                --nav-height: 56px;
            }
            section {
                padding: 48px 0;
            }
            .category-hero {
                padding: 40px 0 32px;
            }
            .category-hero .container {
                flex-direction: column;
                align-items: flex-start;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .category-hero .hero-desc {
                font-size: 15px;
            }
            .category-hero .hero-icon {
                display: none;
            }
            .section-title {
                font-size: 26px;
            }
            .resource-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .res-stats-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .topic-recos {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .rel-mini-links {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .subscribe-cta-res {
                flex-direction: column;
                align-items: stretch;
                padding: 24px 20px;
            }
            .subscribe-cta-res .cta-form {
                flex-direction: column;
            }
            .subscribe-cta-res .cta-form input {
                min-width: auto;
                width: 100%;
            }
            .subscribe-cta-res .cta-form .btn-subscribe {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .filter-bar .container {
                gap: 8px;
            }
            .filter-btn {
                padding: 6px 14px;
                font-size: 13px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-hero h1 {
                font-size: 24px;
            }
            .section-title {
                font-size: 22px;
            }
            .resource-card .body {
                padding: 16px 18px 18px;
            }
            .resource-card .body h3 {
                font-size: 16px;
            }
            .res-stat-card .num {
                font-size: 26px;
            }
            .brand-logo {
                font-size: 18px;
            }
            .nav-toggle span {
                width: 20px;
                height: 2px;
                margin: 4px 0;
            }
        }